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	Une multiplication		2009-04-03
		josee pose la question : 24/6x5+40-10= le x est une multiplication et il n'y as pas de parenthèses. Merci Josée Antoine Letarte and Claude Tardif lui répond.
	Factoring an interest formula		2020-09-29
		Kenneth pose la question : Hello P + Pr has a common factor of P so it can be expressed as P(1 + r) after the P is factored out.. How does the "P" get in front of (1 + r)? P/P + Pr/P = 1 + r What step is used to show that P is added in front of (1 + r)? I thank you for your reply. Harley Weston lui répond.
	A times table in base 5		2020-03-11
		Felix pose la question : Design a time table for numbers 1-10 in base 5 Penny Nom lui répond.
	Multiplication base 8		2020-02-19
		Tamesha pose la question : Let’s count with the symbols 0,1,2,3,4,5,6,7 (base 8) A). Create a multiplication table for this base B). Compute the following products using the multiplication algorithm I). 7605 times 3713 II). 63725 times 40627 Penny Nom lui répond.
	Dividing the tips		2020-01-02
		Pat pose la question : trying to figure out division of tips I have 3 full time employees 40 hrs a week and 1 part time worker 12 hours a week what percentages do i give them to give them appropriate tips :-) Harley Weston lui répond.
	Two people are clapping their hands		2019-12-06
		Yukti pose la question : Two people are clapping their hands, but with different frequencies. Ramya claps her hands 17 times per 3 minutes, and Kumar claps his hands 31 times per 5 minutes. They start clapping at the same time. How many times does each one clap before they clap together at the same time again? Penny Nom lui répond.
	Packing chocolates in boxes		2019-07-22
		CHESKA pose la question : 1.levy can pack the chocolate bars either with 35 bars in a box,with 42 in a box, or with 49 in a box. what is the least number of chocolate bars that he has? 2. the blue light of a Christmas light blinks every 2 second. the red light blinks every 3 second and the yellow light blinks every 5 second. how many times will the three lights blink at the same tims in one hour? 3.a wooden straightedge can exactly measure an 825 cm rope, a675 cm rope, and 375 cm rope. what is the least possible length of the straightedge? how many times will it measure each rope? Penny Nom lui répond.
	Multiplies and factors		2018-02-24
		Lil pose la question : Is a multiple the same as a factor? Penny Nom lui répond.
	3 yards 6 inches times 7		2018-02-08
		Tamara pose la question : 3 yards 6 inches × 7 Penny Nom lui répond.
	Four multiples of 10		2017-09-23
		Laudacir pose la question : Four multiples of 10 are added together.the total is a 3 digit number with three consecutive digits. What could the four number be? Penny Nom lui répond.
	3 consecutive multiples of 11		2017-07-22
		nisha pose la question : using the multiples formula shown at ypur site how can we solve finding 3 consecutive multiples of 11 whose sum is 363 Penny Nom lui répond.
	Two boys on the same route		2016-12-06
		Abbey pose la question : Starting from the same spot, one boy completed a route in 9 minutes and another boy completed it in 15 minutes. When will both boys be at the same starting point at the same time again? Penny Nom lui répond.
	Multiplication and repeated addition		2016-11-23
		Anandmay pose la question : Hello I was looking closely at early arithmetic where I found how we discovered properties of Arithmetic. Like:2 x 3 = 3 x 2. This can be proved by considering a 2-D figure(actually,quadrilateral) having length consisting of 2 boxes of 1-by-1 dimensions and breadth of 3 boxes of the same dimensions. Now,consider it again,but,this time,length of 3,and breadth of 2 of such 1 by 1 boxes. We now notice that we can fit the 2 types of rectangles formed on each other precisely. So the multiplicative property of commutativity is true for all natural numbers as we can generalize the result(in our mind,for self satisfaction). Now,can you find me a nice satisfactory reason of why a fraction times a natural number equals the number times the fraction? I mean, for example,i can understand the meaning of 3 x 2/3 to be three times 2-3rd,that is, 2/3+2/3+2/3.Fair enough. But here is the problem:By definition and actual meaning of multiplication, a x b means the repeated sum of b,done 'a' times. So what is the meaning of doing 2/3 x 3?The repeated addition of 3 how many times??2/3 times??Not making sense,right?And even we have not proved yet the commutative property of numbers INCLUDING fractions.So how can we resolve this problem and make these things meaningful? Thanks Penny Nom lui répond.
	An airplane schedule		2016-10-14
		Stephanie pose la question : Starting at 8:00a.m., a passenger plane leaves from an airport every 6 minutes and a cargo plane leaves every 7 minutes. When is the next time these kinds of planes will leave at the same time? Penny Nom lui répond.
	The difference between the ares of two rectangles		2016-06-09
		Ingrid pose la question : I am trying to help my son with an area question. I have the answer, from the solutions, but I cannot figure out how to teach him. Question: Two rectangles have lengths 13cm and 19cm respectively. Their total area is 376cm squared. If both their widths are whole numbers, what is the difference in their areas? I know that this is solvable once I determine the widths of the rectangles , but how do I go about finding that? Thanks for your help Chris Fisher and Harley Weston lui répond.
	Two pieces of rope		2016-05-21
		Render pose la question : Fred cuts a 12- inch piece of rope. Then he cuts a second piece of rope that is 3/2 longer than the first piece. Is the second piece shorter or longer than the first piece? Explain. Penny Nom lui répond.
	Pizza delivery		2016-04-03
		Andrew pose la question : Suppose you own a local pizza restaurant, Pizza with Pizzazz, and in order to compete with the big pizza chains in your area you are considering an advertising campaign offering customers a free pizza if their pizza is not delivered in 30 minutes or less. Even though your pizza restaurant is known for its fast and friendly delivery service, you are not sure if you can afford to give away too many pizzas for free. Looking over your past 12,421 pizza deliveries you find out 97% of the pizzas were delivered in 30 minutes or less. Calculate the probability that all 100 randomly selected pizza deliveries will have been made in 30 minutes or less? Hint: Use the multiplication rule. (Round 4 decimals) I'm really stumped on how exactly to do this problem. I don't need the answer just the steps broken down to show me how to get it! It would be gladly appreciated if you could help! Penny Nom lui répond.
	n^2 is a multiple of 100		2015-03-30
		Rahul pose la question : I have to prove that n^2 is a multiple of 100 is necessary or Sufficient condition (or both) for n being multiple of 10 Penny Nom lui répond.
	A fact family containing 4, 4 and 16		2014-10-14
		Leslie pose la question : I am helping my son and the question is 4,4,16 in fact family what does that mean Penny Nom lui répond.
	Multiplication in base five		2014-08-07
		Alise pose la question : Hi Maths Central! I was wondering if you could help me with multiplying in base 5. I have read a question previously answered by you in regards to this but got fairly confused by it and was hoping you could help me with my question. My question is: Multiply 1422 base 5 by 21 base 5 keeping these numbers and answer in base 5. Would you also be able to explain how to get to the answer? Thanks! Penny Nom lui répond.
	60% as much as $30.		2014-07-18
		Kenneth pose la question : Question from Kenneth: Hello: Do you know why some "as...as" phrases indicate multiplication? For example, ? is 60% as much as $30. This is equivalent to 60% X $30 = $18. How does this make sense? I saw this example in an old textbook on business mathematics, but the author did not explain why it is equivalent to multiplication. I thank you for your reply. Robert Dawson lui répond.
	Problem solving with fractions		2013-12-03
		Jennie pose la question : Paul has 2/3 as many postcards as Shawn. Shawn has 3/5 as many postcards as Tim. If the 3 boys have 280 postcards, how many more postcards does Tim have than Paul? Penny Nom lui répond.
	Base 5 arithmetic		2013-11-27
		samuel pose la question : Good day sir, please i don't understand when you say 4x4=13 in base five? In fact, am always having difficulties in addition, subtraction, division and multiplication of number in the same base other than base ten. Please can you give me one example each with details explainations? Penny Nom lui répond.
	Six-digit passwords		2013-03-19
		Judy pose la question : Hello: Can you please explain why the answer to the following question is 10^6? What is the number of possible six-digit passwords when using the digits 0 through 9, with repetition allowed. Thank you. Penny Nom lui répond.
	Multiplication in base two		2013-02-01
		Michael pose la question : multiply in the indicated base 110two*11two Penny Nom lui répond.
	The multiplication table for the different bases		2013-02-01
		sylvia pose la question : I am having a difficult time trying to figure out how to fill in the multiplication table for the different bases. i don't know how to get the numbers. Penny Nom lui répond.
	birdhouse in the shape of a rectangular prism		2012-10-29
		Tiffany pose la question : Hello, I am Tiff M. from NYC. I was solving a math problem about adding,subtracting,multiplying or dividing fractions and mixed numbers. I am not getting this question below. * Laura is building a birdhouse in the shape of a rectangular prism. The base of the birdhouse has an area of 5 square inches. The height of the birdhouse is 2 7/12 inches. Laura calculated the volume of the bird house to be 10 7/12in. Is she correct? If not, what did she do wrong? Robert Dawson lui répond.
	Changing the sign of an inequality		2012-09-19
		Bryauna pose la question : Why do you change the signs in inequalities?! Penny Nom lui répond.
	Multiples		2012-05-28
		Kenneth pose la question : If I understand correctly , a multiple is a product of two numbers. For example some of the multiples of 6 are 6, 12, 18, 24, 30, etc. I just multiplied 6 by 1, 2, 3, 4, 5, etc. Are the multiples of a fraction, for example, 2/3, determined in the same way? Are they 2/3, 4/3, 6/3, 8/3, 10/3, etc., or are they instead, 2/3, 4/6, 6/9, 8/12, 10/15, etc.? Or do fractions have no multiples? Penny Nom lui répond.
	Multiplying binomials		2012-05-14
		Jordan pose la question : How do I solve the equation: 3(x+4)(x-6) Penny Nom lui répond.
	Building a tipi		2012-01-29
		Lacy pose la question : Hi there! We are building a tipi for our children. We want to build a large one about 15ft tall with a base of about 15 feet diameter. I am trying to figure out how much canvas we need to accomplish this. I graduated about 20 years ago and am struggling. Please help if you can. Penny Nom lui répond.
	I started with Euler's identity and manipulated it		2011-11-14
		anonymous pose la question : I started with Euler's identity and manipulated it e^i*pi=-1 e^-i*pi=(-1)^-1 e^-i*pi=-1 e^-i*i*pi=(-1)^i e^--pi=(-1)^i e^pi=(-1)^i type it in in a calculator and you get e^pi=23.1406926... and (-1)^i=0.0432139183... What did I do wrong? Robert Dawson lui répond.
	4 x 2		2011-08-30
		Lucjan pose la question : how to sketch a diagram that shows 4x2 expression? Penny Nom lui répond.
	3.8 x 2.2		2011-08-18
		Isaac pose la question : Question from isaac, a student: I am struggling in math & I need help on multiplying 3.8 x 2.2. Can you helpme Melanie Tyrer and Harley Weston lui répond.
	Prove sin x = sin (pi - x)		2011-02-15
		Janet pose la question : Prove sin x = sin (pi - x) Penny Nom lui répond.
	Multiplication and order		2011-01-21
		Janet pose la question : IN A MULTIPLICATION SENTENCE BASED ON A DRAWING..IS THERE ANY ORDER FOR THE MULTIPLICAND ANG MULTIPLIER FOR THE ANSWER TO RIGHT? Robert Dawson lui répond.
	Convert to multiplication		2010-10-23
		angelina pose la question : how to covert 5+5+5=15 to multiplication Penny Nom lui répond.
	Geocaching		2010-10-15
		Clint pose la question : I am stuck on a puzzle for Geocaching which is a GPS game. I know it is a number matrix but don't know how to start. [1 -7 16 -3 -9; 1 -3 18 -20 -33] x [1 8 -9 3 5; 0 1 0 4 2; 0 0 1 2 1; 0 0 0 1 -1; 0 0 0 0 1] = ? Stephen La Rocque lui répond.
	x/200+x/400+x/600+x/800		2010-10-08
		Ashishthombre pose la question : step by step LCM of x/200+x/400+x/600+x/800 Penny Nom lui répond.
	Constructing a tipi		2010-09-20
		mike pose la question : we are thinking about making a lightweight tipi tent but we need to know what the angles and lengths of each side that we will need to cut. The height of the tipi wants to be about 2.2m span at the widest point wants to be about 3.2m we want to make it based upon a 6 sided(hexagon) shape thanks for your help Harley Weston lui répond.
	Three cars		2010-08-30
		Anil pose la question : 3 cars are moving at speed of 4 kmph,5.5 kmph and 8 kmph in a circular track.The circular track has a distance of 11 km. What is the time taken for all the 3 cars to meet at the starting point ? Stephen La Rocque lui répond.
	Two problems		2010-05-27
		debbie pose la question : Question from debbie, a parent: hi, i have a daughter and she asked me a maths question I cannot solve. I was just wondering if you can give me the answers plus the working out so I could explain to my daughter, 1. The leftmost digit of a six-digit number N is 1. If this digit is removed and then written as a rightmost digit, the number thus obtained is three times N .Find N. 2. Four friends are racing together down a flight of stairs. A goes 2 steps at a time, B 3 steps at a time. C 4 steps at a time and D 5 steps at a time. The only steps which all four tread on are the top one and the bottom one. How many stairs in the flight were stepped on exactly once? Penny Nom lui répond.
	cos(x) = sin(x - 1)		2010-04-28
		alex pose la question : In the equation cos x = sin x-1 for -pi/2 A: solve for x graphically B: solve algebraically and prove the solution is correct. Alex Penny Nom lui répond.
	1/6 x 5 x 12 = what		2010-02-19
		dana pose la question : 1/6 x 5 x 12 = what Lorraine Dame lui répond.
	Two bus routes		2010-02-03
		kiyah pose la question : from 4:30 pm to 6:30 pm the route 1 bus stops every 12 min at the gym's bus stop. the route 2 bus stops there every 15 min. if both buses are now at the stop and schedule is kept, how long will it be before both buses will be at the stop again? Penny Nom lui répond.
	Dividing seashells among girls		2010-01-06
		Eileen pose la question : A group of girls collected some seashells from the beach. They tried to divided these seashells equally among them. If each girl received 8 seashells, they would need 5 more seashells. If each girl received 7 seashells, they would have 3 seashells extra. How many seashells did they collect from the beach altogether? Robert Dawson and Penny Nom lui répond.
	Common multiples of 36 and 48		2009-09-15
		Kamaldeep pose la question : Find the first 2 common multiples of 36 and 48. Penny Nom lui répond.
	Jogging and swimming		2009-09-11
		Brandon pose la question : Trevor swims jogs 3 days and swims every 4 days. How often does he jog and swim on the same day Leeanne Boehm lui répond.
	Multiplying Large Numbers		2009-07-09
		Jessica pose la question : What is 12 billion X 6 trillion? Janice Cotcher lui répond.
	Multiplying Large Numbers		2009-07-09
		Jessica pose la question : What is 12 billion X 6 trillion? Janice Cotcher lui répond.
	Investing in multiple accounts		2009-06-26
		Kenneth pose la question : Hello: If an investor has $1000.00 to invest in multiple accounts, and he wants a total return of 4%, is there one calculation that can be used to determine what these amounts could be even though there may be numerous amounts used as answers for most of the following examples? For example, Invest $1000.00 @ 2% and 5% for total return of 4%. Invest $1000.00 @ 2%, 3% and 5% for total return of 4%. Invest $1000.00 @ 2%, 3%, and 5% for total return of 4%. Invest $1000.00 @ 2%, 3%, 4% and 5% for total return of 4%. etc. Robert Dawson lui répond.
	Fraction Word Problem		2009-05-13
		Sonya pose la question : Debbie wants to eat 1/6 of her 12 pieces of candy. How many pieces did she eat ? Janice Cotcher lui répond.
	A six sided pyramid		2009-05-11
		Karen pose la question : I am going to make my kids a six sided tipi (pyramid) I have a 5 foot tall central pole, and I would like the floor area to be 6 feet across. How do I work out what size to cut each fabric panel to make this happen? Harley Weston lui répond.
	Common multiples of 2 and 5		2009-04-23
		pat pose la question : what are the common multiples of 2 and 5, through 30, because i been working on it for hours Robert Dawson and Stephen La Rocque lui répond.
	Choices at a restaurant		2009-04-13
		Rob pose la question : There is a restaurant you get: Rice/Noodles (1) Main Ingredient (any) Sauce (1) 1 1 1 2 2 2 3 3 3 4 4 4 5 5 5 6 6 6 7 7     8     9     10     11     12   So the question is how many different combinations are there. You can only have 1 rice/noodles in a selection and only 1 sauce in a selection but you can have between 1 and all twelve mains in a selection. there are 7 rice/noodles , 12 mains and 6 sauces. How many possibilies. I did it mentally in the restuarant, no pen, paper or calculater and i got 3276..i think thats wrong. please help Rob Robert Dawson, Stephen La Rocque and Claude Tardif lui répond.
	2sinB=3tanA		2009-04-10
		Xanathax pose la question : ABC is a right-angled triangle. 2sinB=3tanA. Calculate the measure of angle A. Penny Nom lui répond.
	Multiplication of polynomials		2009-04-07
		Carla pose la question : I am struggling to understand Multiplication of Polynomials. No matter how hard I try to understand Multiplication of Polynomials, I just can't get it! The problem that I am trying to solve is this : -3x^3y(-y + 2 -x^2 + x) Robert Dawson lui répond.
	A rectangular open box		2009-03-21
		tina pose la question : An open box is to be made from a rectangular piece of tin by cutting two inches squares out of the corners and folding up the sides. The volume of the box will be 100 cubic inches. Find the dimensions of the rectangular piece of tin. Stephen La Rocque lui répond.
	Multiplying in different bases		2009-02-25
		Susan pose la question : 11 base 2 X 22 base 3 + 33 base 4 = _________ base 5 Robert Dawson lui répond.
	mutiplying decimals		2009-02-24
		telly pose la question : how to do this sum0.24*0.398 Robert Dawson and Penny Nom lui répond.
	Multiplying negative numbers		2009-01-15
		stephanie pose la question : hi, I'm currently working in a grade 8 class where the students are learning about integers. the students were asked to find examples of how integers are applied in real life. they were able to find aplications for: adding and subtracting both positive and negative integers. however, we could not find an example of where two negative integers would be either divided or multiplied together in real life. For example: (-2)(-4)= +8. please help. Harley Weston lui répond.
	Multiplication		2008-11-14
		natalie pose la question : what is 8 times 30 Penny Nom lui répond.
	Confusion in a multiple choice question		2008-11-14
		BJ pose la question : My son got this math problem which he could mostly solve. Here it is: The highest location in a certain country is 4525 m above sea level. The lowest point in the same country is 192 m below sea level. a) Find the difference of the two elevations. His answer: a-(-b)= a+b or 4525-(-192)= 4525+192=4717 m. No problem. b) A city is 2221 m above sea level. Is this elevation closer to the highest point or the lowest point? His answer: highest point because: 4525-2221= 2304 m (closest to the highest point) and 2221-(-192)=2221+192= 2413 m. (farthest to the lowest point). OK so far. But then he was given 4 choices for this question with no other information: a) 4717 m; lowest b) 4333 m; lowest c) 4333 m; highest d) 4717 m; highest What does it mean? What's the connection with the rest of the problem? Harley Weston lui répond.
	A multiple choice exam		2008-09-13
		Phalange pose la question : A multiple choice exam consists of 12 questions, each having 5 possible answers. To pass, you must answer at least 9 out of 12 questions correctly. What is the probability of passing if: a. You go into the exam without knowing a thing, and have to resort to pure guessing? b. You have studied enough so that on each question, 3 choices can be eliminated. But then you have to make a pure guess between the remaining 2 choices. c. You have studied enough so that you know for sure the correct answer on 2 questions. For the remaining 10 questions you have to resort to pure guessing. Harley Weston lui répond.
	multiply = 3a - 3b by a+b		2008-07-15
		chaleen pose la question : multiply = 3a - 3b by a+b Penny Nom lui répond.
	sin(2x)/sin(3x)		2008-06-19
		matt pose la question : how does sin2x break down (not with identities) and how would sin3x be created. My prob. is sin 2x/ sin 3x and I want to know how the double(or triple angle) would break down. I want to be able to cancel out sins. Thanks! Harley Weston lui répond.
	How do you reduce an equation with multiple variables?		2008-04-30
		Jonathon pose la question : How do you reduce an equation with multiple variables? For example, if 3x + y = k(x-3), what would x be equal to? Penny Nom lui répond.
	Matrix multiplication		2008-04-08
		manashi pose la question : i. why matrix division is not possible? ii.when we add or subtract two matrix , getting the result by addind or subtracting correspondind elements....but in case of multiplication it is not but why? Harley Weston lui répond.
	What fraction of 45 is 10?		2008-04-06
		Scott pose la question : 45 x fraction? = 10 Penny Nom lui répond.
	2 times 0 times 0 times 4		2008-03-30
		ben pose la question : what is 2 times 0 times 0 times 4? Penny Nom lui répond.
	Multiplying decimal numbers		2008-02-05
		alwyn pose la question : Why should when you Multiplying Decimal numbers is value becoming less and less? don't you think even decimal number is a quantity and in no chance when it multiplies its should become less or nil !!! In fact all Multiplying and or adding the value will go up and only when you subtract and divide it should become less !! Stephen La Rocque and Penny Nom lui répond.
	Fact families with multiplication and division		2008-01-16
		Donna pose la question : I am trying to help my granddaughter with some math homework. I looked at what you have on fact families. Am I correct to assume that the same process applies to multiplication and division as well? Her question asks for fact families for 2, 8, & 16. Penny Nom lui répond.
	Multiplying numbers in bases other than 10		2008-01-08
		Imaiya pose la question : In class we've been learning about numbers with a base other than ten. For example, base 7, base 5, and base 6. What's really stumping me is how to multiply these numbers, when they aren't a base of 10. I've had it explained to me once, but don't seem to understand it. Here are the equations, and I've listed the first few numbers for that particular base. Base 5: 0,1,2,3,4,10,11,12,13,14,20 etc... The Equation: 34 x 42 Base 9: 1,2,3,4,5,6,7,8,10,11,12,13,14, etc... The Equation: 56 x 78 If you could explain to me how to multiply numbers with any type of base, I'd really appreaciate it. Also if you could show me how to do one of the questions that I listed, that would really help me =) Thanks so much, and once again, thank you for your great site! Stephen La Rocque lui répond.
	LCM over 100		2007-12-09
		Aris pose la question : A teacher has more than 100 sweets. She thinks that if she give 6, 8 or 9 sweets to her students she will have no remaining in the case. What is the smallest number of sweets in the bag? Stephen La Rocque lui répond.
	6 consecutive multiples of 6		2007-11-11
		jeff pose la question : find 6 consecutive multiples of 6 whose sum is the least common multiple of 13 and 18 Penny Nom lui répond.
	Surface area of an open-ended cone		2007-10-16
		Lorne pose la question : What is the surface area of an open ended cone? Measured at 10' high, 16' diameter on the bottom and 2' diameter at the top. Stephen La Rocque lui répond.
	How much can Daisy spend?		2007-10-14
		Math pose la question : Daisy has $25.00 to spend on dinner. Her sister tells her to leave 18% of the bill as a tip and the sales tax is 8% of the bill. What is the maximum amount she can spend on dinner in order to cover the meal, sales tax, and the tip? Penny Nom lui répond.
	13 year and 17 year locusts		2007-10-12
		stefan pose la question : how many years pass between the years when both 13 year and 17 year locusts are out at the same time? Penny Nom lui répond.
	y squared over 3 times 8 over y		2007-09-30
		John pose la question : y squared over 3 times 8 over y Stephen La Rocque lui répond.
	Least Common Multiples		2007-09-20
		Aiyanna pose la question : What is The Lcm Of 3,7,and 8 Because my Teacher gave me That and he didnt even know the answer.... I Worked and worked but I Couldnt Find It..... Penny Nom and Victoria West lui répond.
	Multiplcation of two negative numbers		2007-07-26
		Brett pose la question : Someone asked a question about multiplication and division of two negative numbers yielding a positive result here: http://mathcentral.uregina.ca/qq/database/QQ.09.99/butler1.html I was not fully happy with the explanation b/c I want to give me daughter a real-world example and I can't seem to find one. The following illustrates why multiplying negative numbers has become difficult to explain: 2 X 2 = 4 ----(-4)---(-2)---0---2---4 In this example we start with 2 and then want 2 more of them. When we move across the number line from 2 to our answer, which is four, we have moved only 2 units to the right. -2 X -2 = 4 ----(-4)---(-2)---0---2---4 In this example we start with -2 and then want -2 more of them. When we move across the number line from -2 to our answer, which is four, we have moved 6 units to the right. How can the phenomenon of multiplying two negative numbers being more powerful than multiplying two positive numbers be explained? -Brett Stephen La Rocque and Harley Weston lui répond.
	Guessing multiple choice answers		2007-07-24
		carla pose la question : You are taking a multiple choice quiz that consist in 3 questions, each question has 3 possible answers only one is correct. To complete the quiz you randomly guess the answer to each question . Find the probability of guessing exactly 2 answer correctly. b) at least to answer correctly . c)less than two answer correctly Stephen La Rocque lui répond.
	Fractions of fractions		2007-07-18
		Bridget pose la question : Sam and Mary each owned one-half stock in a printing company. Sam sold 2/3 of his stock to Mary. What fractional part of the printing business does Mary now own? Penny Nom lui répond.
	The lcm of polynomials		2007-05-31
		devin pose la question : x^3-8 , x^3-4, x^2+4x+4 Penny Nom lui répond.
	Triple angle tangent formula		2007-03-15
		sam pose la question : Hi I am trying to derive a triple angle formulae for tan. I know i need to use compound and double angle formulae but am finding it difficult to "clean" up my fraction to get the triple angle formulae can you show me a worked derivation?! thanks Penny Nom lui répond.
	Multiplying and dividing by zero		2007-02-05
		colin pose la question : i would like to if u multiply 1,000,000 by 0 does it equal o or 1. if you have a number eg 15689 and you divide by o what would the answer be is it 1 Penny Nom lui répond.
	Which lets you put equal groups together?		2007-01-20
		Kathy pose la question : Which lets you put equal groups together? division, multiplication, subtraction, estimation Stephen La Rocque lui répond.
	Comparing two fractions		2007-01-18
		Kayla pose la question : Why does eight over twelve compared to one half work when you use cross multiplication. Penny Nom lui répond.
	Products with symbols		2007-01-09
		Jennifer pose la question : Find the product of each (8x)(-4) (3x)(5y)(7z) (8x^3y)-5X^2) (6a)(3a)(-b^2) Penny Nom lui répond.
	A 15% tip		2006-12-06
		Danielle pose la question : When she eats at a restaurant,Viviana like to leave a 15% tip,multiplying the price of the meal by 0.15. Franklin usually leaves a 20% tip,multiplying the price by 0.20.They both round up to the nearest $0.05. How much tip would Viviana leave for a $24.85 meal? Penny Nom lui répond.
	Least common multiple		2006-11-08
		Melenie pose la question : I have a daughter in 5th grade she can't seem to grasp the concept of finding LCM's does anyone have a quick easy way for her to learn????? Stephen La Rocque lui répond.
	Induction		2006-10-31
		Ross pose la question : Suppose that A and B are square matrices with the property AB= BA. Show that AB^n = B^n A for every positive integer n. Stephen La Rocque and Penny Nom lui répond.
	Lattice multiplication		2006-10-16
		Patti pose la question : I am a parent of a 5 th grader, and am a bit loss in the "new" math. I know how to multiply using the "old fashion" method. But, could you please explain lattice multiplication. Diane Hanson lui répond.
	Least common multiple		2006-09-25
		A student pose la question : What is the LCM of 10,45 and 38? Stephen La Rocque lui répond.
	What was the total cost of the dinners he served		2006-09-10
		Connie pose la question : Walter is a waiter at the town diner. He earns a daily wage of $100 plus tips that equal to .15 of the total cost of the dinners he serves. What was the total cost of the dinners he served if he earned $170 on Tuesday? Stephen La Rocque lui répond.
	Mayan multiplication		2006-04-16
		Marca pose la question : I'm researching the Mayans, and my advisor, Dr. McDonald, stated that you may know whether the Mayans knew how to multiply. I'm finding conflicting information on the internet, and anything you could provide would be greatly appreciated. Chris Fisher lui répond.
	How many people are in the race?		2006-04-07
		Marty pose la question : You're in a race with 1/5 of the racers ahead of you and 5/6 of them behind you. How many people are in the race? Penny Nom lui répond.
	Mastering the multiplication tables		2006-04-04
		Ellie pose la question : I need a detailed study plan fro helping my son master his multiplication tables. Grade: 3 elementary Paul Betts lui répond.
	cos(3X)		2006-03-29
		Joshua pose la question : I'm having trouble proving that cos(3X)=cos3X -(cosX)(sin2 X) Penny Nom lui répond.
	A bill with a 15% tip and a 10% discount		2006-03-20
		Tracy pose la question : A $4500 bill is presented, without tax. 10% discount coupon. Add 15% tip with 3 people spitting for the sever. Penny Nom lui répond.
	The Least Common Multiple of two primes		2006-02-21
		Kristine pose la question : Is the Least Common Multiple to two prime numbers always their product? Why or Why not? Stephen La Rocque lui répond.
	GCF, LCM, primes and the ladder method		2006-01-07
		Linda pose la question : How would I teach both finding the GCF and LCM with prime factors...I recall the ladder method vaguely.??? Penny Nom lui répond.
	LCM		2005-12-12
		Alex pose la question : what is the LCM of 210 and 54 and the LCM of 42 and 126 Penny Nom lui répond.
	Least common multiple		2005-10-22
		Dayna pose la question : I'm stumped! I can't seem to come up with a least common multiple of 22 and 25. Is there one? Penny Nom lui répond.
	The lcm of 5, 3, 4, 7 and 2		2004-11-05
		Christine pose la question : what is the lcm of 5,3,4,7,2 Penny Nom lui répond.
	The lcm of 1 and -1		2004-11-03
		Nayiyan pose la question : I would like to know what is the LCM of (-1) and (+1) is. Penny Nom lui répond.
	Multiplying two algebraic fractions		2004-10-31
		A parent pose la question : Multiply: x+2 x²-4 ----- x ------- x-2 x²+x-2 Harley Weston lui répond.
	GCD and LCM		2004-10-31
		Cartalina pose la question : how do you calculate the "positive difference between the GCF and LCM of two numbers"? Penny Nom lui répond.
	sin(3A)		2004-10-20
		A student pose la question : Express sin3A in terms of sinA and cosA. Penny Nom lui répond.
	The Parliament of the land of Achronia		2004-05-29
		Christine pose la question : The Parliament of the land of Achronia consists of two houses. The parliament was elected in 2003 for a period of six years beginning on Thursday, the 1st of January 2004, when the two houses had their first sessions. According to the rules, the meetings of the first house must occur every twelve days for the duration of the term, and the meetings of the second house must occur every eighteen days. For example, the second meetings of the first and the second houses were held on the 13th and 19th of January respectively. A new law can be passed on any day when both houses meet, except on a Thursday. On how many days can the parliament members pass new laws during this six year term? Penny Nom lui répond.
	Sin(3x), cos(3x) and tan(3x)		2004-01-28
		Jon pose la question : What is the identity for cos3x, sin3x, and tan3x? In class, we learned double angel identities and were asked to find out the identity to these three trig functions. If you can help, please do. Also, i know that the cos4x- sin4x is the same as cos2x. Is cos8x-sin8x = cos2x also true? Thank you.s Chris Fisher lui répond.
	Multiplier and multiplicand		2003-12-17
		Karen pose la question : The K-5 curriculum states that at a grade 5 level students should "understand and use the terms multiplier, multiplicand" The curriculum defines 'multiplicand' as " a number being multiplied by another number. A factor." There is no definition given for 'multiplier' Question: Define these words- are they just other words for 'factors'. If so, how important is it that students use these terms? It would seem like 'factors' would be the better choice of words to use. If multiplcand refers to eg. the first factor in the equation and the 'multiplier' the seond term, (if in fact it does)- is this not confusing for students when we teach them that multiplication is commutative? Penny Nom lui répond.
	Multiples of all four of the numbers 2, 3, 4, and 5		2003-02-11
		Stephanie pose la question : How many of the first 1000 positive integers are multiples of all four of the numbers 2, 3, 4, and 5? Penny Nom lui répond.
	The least common denominator		2003-01-21
		Brittan pose la question : Hi there I need help! My name is Brittany and i am in the 6th grade. I need help finding the least common denominator(LCD), and the book says Find the LCM of the denominators and i've done that and then it says write equivalent fractions,using the LCM as the least commonn denominator.The directions say Use the LCD to write each pair as like fractions. and the problem is 1/8 and 5/40. Could u explain how in the word u do this? Thanks a lot Brittany Penny Nom lui répond.
	Why is 5 divided by 1/7 greater than 5 divided by 2/3?		2002-11-19
		Elizabeth pose la question : Without performing the division, explain why 5 divided by 1/7 is a number greater than 5 divided by 2/3. Is the least common multiple of two prime numbers always their product? Why or why not? Diane Hanson and Penny Nom lui répond.
	The base 10 multipliction table		2002-07-07
		A student pose la question : These are two questions from Math for Elementary Teachers and they have me stumped. You have two coins that are worth 30 cents. One of the coins is not a nickel. What are the two coins? The product of the diagonals of any 2x2 matrix in the base 10 multiplication table are equal. Why? Penny Nom lui répond.
	Multiplying decimals		2002-03-10
		Kaitlin pose la question : I just recently had a test on multiplying decimals and I did not do really well on it. Only 5 kids out of 19 got a passing grade. My teacher says that she will give us a different test and we can take it again, but I'm still not sure of it. My teacher has taught me a lot and she had done a wonderful job of it but I'm just confused with where to put the decimals and stuff like that. I have a math practice workbook that I do for fun and they have nothing on decimals in it. I have checked on websites to try to find worksheets but I really couldn't find a good one. Can you please help me either give me some tips or clues or send me a worksheet. Penny Nom lui répond.
	sin 2x = cos 3x		2002-02-25
		Allan pose la question : solve: sin 2x = cos 3x Primary question: how do you handle the cos 3x? Paul Betts and Chris Fisher lui répond.
	For 7 the multiplicand is 143		2001-12-12
		Cory pose la question : For 7 the multiplicand is 143 I am asked to solve this, if you could help me it would be greatly appreciated! Penny Nom lui répond.
	Manufactures golf balls		2001-11-06
		Kevin pose la question : A company manufactures golf balls. Golf balls are each numbered consecutively 0 to 4, and then the numbering starts over with zero again. Every 12th golf ball is yellow. Every 8th golf ball is tested for defects. The company produces 120,000 golf balls in an eight-hour shift. A. How many yellow golf balls are tested for defects during the day? Explain your reasoning. B. How many of these yellow balls that are tested are imprinted with the numeral 2? Explain your reasoning. Penny Nom lui répond.
	Negative times negative is positive		2001-10-26
		Mary pose la question : I have a question about adding and multiplying positive and negative numbers. When we add two negative numbers the answer is negative BUT when we multiply two negative numbers the answer is positive. I don't understand. Why? Penny Nom lui répond.
	Why do you flip the inequality sign?		2001-10-26
		Sean pose la question : I have a question about an inequality problem. Here it is: Solve and graph 5 - 3x => 17. (=> is greater than or equal). Please tell me why you flip the inequality sign when divinding by a negative number. Penny Nom lui répond.
	Multiplying vectors		2001-10-22
		Murray pose la question : Could you please explain why a vector times a vector is a scalar and how to derive the formula vector a * vector b = ab cos(a,b) Harley Weston lui répond.
	Locusts		2001-10-08
		A parent pose la question : JOHN CONJECTURED THAT BOTH 13-YR.&17-YR. LOCUSTS CAME OUT THE SAME YEAR. ASSUME IT IS CORRECT. HOW MANY YEARS PASS BETWEEN THE YRS. WHEN BOTH 13 YR. & 17YR. LOCUSTS ARE OUT AT THE SAME TIME? EXPLAIN. NEXT, SUPPOSE THERE WERE 12YR.,14 YR.,& 16YR. LO- CUSTS,& THEY ALL COME OUT THIS YR. HOW MANY YRS. WILL IT BE BEFORE THEY ALL COME OUT TOGETHER AGAIN? Leeanne Boehm lui répond.
	GCD and LCM		2001-09-24
		David pose la question : Find the GCD adn LCM of the following numbers. Assume p 2 to the power p, 3 to power q, 5 to power r and 2 to power q, 3 to power r, 7 to power p Penny Nom lui répond.
	Multiplying binomials		2001-09-08
		A student pose la question : (x+1)(x+2)=? (2x-1)(x-4)=0 please tell me this question!! Leeanne Boehm lui répond.
	Conformable matrices		2001-08-05
		Wayne pose la question : Can someone explain the concept of conformable matrices in a way that is easy to understand ? One definition says to multiply matrices rows and columns must conform, ie, 5 x 3 matrix times a 3 x 5 matrix. In the next example, however a 8 x 1 matrix and a 8 x 3 matrix are said to be conformable! Steve Kirkland lui répond.
	Danging couples		2001-06-06
		Danielle pose la question : How many boy-girl dancing couples could be formed if 85 boys and 102 girls attend a school dance? Penny Nom lui répond.
	Multiplication		2001-05-30
		Lindsay pose la question : Who came up with multipling? its so easy Claude Tardif and Penny Nom lui répond.
	Your DJ Business		2001-05-30
		Linda pose la question : Your DJ Business has 6 rap, 10 rock, 6 alternative, 8 oldies, and 5 country CD singles. How many different 10-song sets can the DJ play, if she plays 2 singles from each category? and How many different 10-song sets if she plays exactly 3 rap singles and 4 rock singles in each set? Leeanne Boehm lui répond.
	A four digit number		2001-02-17
		Dean pose la question : Need to find a 4 digit number that can be divided by 2, 3, 4, 5, 6, 7, 8, 9, and will always have a remainder of 1 in the answer. Penny Nom lui répond.
	Triakis		2001-02-17
		Anne Grant pose la question : I am a grade 8 teacher and have come across the term "Triakis" used with Tetrahedron, octahedron, and hexahedron. What does this term refer to, and what's the difference between a triakis polyhedron and one that is not? I'd also like to know what is meant by the term antiprism, as opposed to prism. Penny Nom lui répond.
	Multiplying one and two digit numbers		2001-02-11
		Marty pose la question : When multiplying do you put the number you are multiplying by on the top or the bottom. Example if you are multiplying by 6's would you write the problem 6 x 2 or 2 x 6 Maybe it just doesn't matter. But when you get to double digits, the double digit always goes on the top? Penny Nom lui répond.
	What is wrong with these probelms?		2001-02-09
		Cindy pose la question : Hi, I am a planning on becomming a teacher and i am asked to find out what is wrong with these probelms and how i would go about showing a student what is wrong with them!! Error in patterns: 13/35=1/5; 27/73=2/3; 16/64=1/4 4/5+2/3=6/8; 2/5+3/4=5/9; 7/8+1/3=8/11 2/3*3=6/9; 1/4*6=6/24; 4/5*2=8/10 Leeanne Boehm and Penny Nom lui répond.
	(-2b+3)(-b-1)		2001-02-06
		Melissa pose la question : Alright, lets say you are multiplying (-2b+3)(-b-1) and you are using "FOIL" first you would get : 2b2+2b-3b-3 then you add like-terms. when multiplying,if the bases are the same, add the exponents...does the same thing apply when you are adding the results of the multiplication even though it's addition? would the answer be 2b3-3b-3 or would it be 2b2-b-3? Penny Nom lui répond.
	Two number theory questions		2001-01-30
		Richie pose la question : i have two questions and they are: the product of three consecutive prime numbers is 7429. Find the product of the smallest and largest of these three integers. the least common multiple of two relatively prime positive integers, a and b, is 144. if a (a>or=2) is as small as possible, compute the value of b. Penny Nom lui répond.
	Fractions of fractions		2001-01-30
		Katie pose la question : When you multiply two positive fractions less than 1, how does the answer compare to the size of the fraction? Why? Penny Nom lui répond.
	7x6 by doubling		2001-01-23
		A student pose la question : Can you think of a way to use doubling to multiply 6x7? Allen Herman lui répond.
	Is n^2 - 2 a multiple of n - 4?		2001-01-10
		John pose la question : Find all positive integers n so that n2 - 2 is a multiple of n - 4. Sukanta Pati lui répond.
	Multiplication of fractions		2001-01-08
		Angela pose la question : Questions: 1. represent multiplication of fractions via an area model 2. describe why, not just how, to round decimals Penny Nom lui répond.
	Order of operations		2000-11-26
		Margaret Pratt pose la question : My daughter has a math question and I am afraid I am of no help. Can you help? 2x5/2+1-5= She arrives at 8 as the answer and has been told this is incorrect. Any help you can give would be appreciated. Penny Nom lui répond.
	A complex calculation		2000-11-24
		Angie pose la question : Multiply (3-2i)2=32-2(3)(2i)+(2i)2 Penny Nom lui répond.
	Dividing fractions		2000-10-18
		Paula pose la question : Why do you have to change the division sign to a multiplication sign and invert the fraction that follows the division sign in order to get the answer to a division problem when you're working with fractions? Penny Nom lui répond.
	Multiplying decimals		2000-10-16
		Lily pose la question : I need help with mutiplying decimals (example) 2.28*0.48( * = times). Harley Weston lui répond.
	Permutations and Multiplication Principle		2000-09-22
		Candice pose la question : A forester selects 4 pink and 4 white dogwoods. The trees are to be planted in row. If a tree is distinguished by color only, in how many ways can the eight dogwoods be planted? How many of these arrangements have at least two trees of the same color side by side? Denis Hanson and Claude Tardif lui répond.
	Why does division start from the left?		2000-05-24
		Salil Dave pose la question : Addition, subtraction and multiplications start with right most digit and proceed left, but division starts from left-most digits and goes right ... why? Harley Weston lui répond.
	Multiplying fractions		2000-05-14
		A student pose la question : 75/2 x 1/100 = 3/8 Please show how to came up with the answer? Penny Nom lui répond.
	Star-multiplication		2000-04-07
		Greg Potts pose la question : I have this question to answer and I don't know where to start. 1*9=0, 9*8=72 and 2*8=9, then 9*9 =? Penny Nom lui répond.
	Factoring, primes, GCF and LCM		2000-02-27
		Ruth Kroek pose la question : My son is in grade seven, he has to do a Factoring Booklet the areas covered are: Prime #'s Composite #'s Rainbow Factoring Finding Multiples (consecutive multiples) Finding GCF of 2-3 numbers uning Rainbow factoring Finding LCM of 2 numbers using consecutive multiples prime factor trees prime factor ladders finding GCF of 2 numbers using Prime number Method Although his text 'Math Power' gives some information, we are at a loss .. Penny Nom lui répond.
	Triple angle formula		2000-02-23
		Sara pose la question : Can one derive a triple angle formula for sine and cosine? If so, how? Chris Fisher lui répond.
	Cross multiplication		2000-02-16
		J E Swinton pose la question : Why does cross multiplication work? How come canceling work? Penny Nom lui répond.
	Least Common Multiple		2000-02-16
		Kathy Heath pose la question : The way I understand it is for 2,3,9 the least common multiple is 18. Am I right? If so, I guess the least common multiple for 3,4,7 is 105. Please let me know if I'm right so I can tell my daughter. Denis Hanson lui répond.
	Climbing stairs		1999-12-22
		Harman Chaudhry pose la question : Paul, Michelle and Michael all climb up 54 steps. Paul climbs the steps one at a time i.e. 1, 2, 3, etc. Michelle Climbs the stairs 2 at a time i.e. 2, 4, 6, etc. Michael climbs the stairs 3 at a time i.e. 3, 6, 9, etc. How many steps are used by exactly two people? Penny Nom lui répond.
	order 4+ determinants		1999-12-06
		Joe Kron pose la question : Why is it never shown how to calculate the value of 4x4 (or larger size) deteminants by the diagonal multiply methods that are generally shown for 2x2 and 3x3 determinants? The method I'm talking about is called Cramer's Rule??? Is this method not extensible to order 4+ and if not why not? Anyway the method always shown for order 4+ is called "reduction by minors" which is not the answer to this question. Walter Whiteley lui répond.
	towers of cubes		1999-10-05
		Sanker pose la question : I need help to solve this Rules for bulding towers of cubes rule 1 The number of cubes on the bottom layer is always one less than the number of squares on the grid rule 2 Each new layer is made with one cube less than the layer underneath it. Investigate how many different arrangements there are of 4 cubes on top of 5 cubes on a two by three grid investigate the number of different arrangements of six cubes on top of seven cubes on a two by four grid investigate the relation between the number of arrangements of cubes and the size of the grid when there are two layers of cubes when there are more than two layers of cubes Walter Whiteley lui répond.
	Jose and Arthur		1999-09-26
		Joel Hammer pose la question : Jose can run around the track in 40 seconds. Arthur runs with Jose but in the opposite direction. They meet every 15 second. How long will it take Arthur to make one trip around the track? Denis Hanson lui répond.
	A Multiple Choice Test		1999-08-31
		Cintra Ramnarine pose la question : I have ten questions. There are two multiple choice answers to each question. What are the chances of answering all questions correctly. Harley Weston lui répond.
	Invert and multiply		1999-08-28
		Debbie Walter pose la question : I have another question please, WHY do we invert and multiply when dividing fractions? I know that's what we do but WHY? What is the reasoning behind it? Penny Nom lui répond.
	Sin 4A		1999-06-22
		Ryan Cochrane pose la question : If sinA = 4/5, and A is a first quadrant angle, find sin4A Harley Weston lui répond.
	Roman Numerals		1999-04-29
		Michelle Jenkinson pose la question : Someone proposed this question to me and I do not know the answer, so I was wondering if you could help. How, using Roman Numeral, did people add, subtract, multiply, and divide with no zero or negative numbers? Penny Nom lui répond.
	Where three sequences meet.		1999-03-06
		Ali pose la question : My name is Ali and I am in the 5th grade. I have a math question: What is the least positive integer meeting each of the following conditions: Dividing by 7 gives a remainder of 4 Dividing by 8 gives a remainder of 5 Dividing by 9 gives a remainder of 6 Help! Denis Hanson lui répond.
	The Board Problem		1999-02-15
		Avery pose la question : Mr. Avery has 3-foot boards and 4-foot boards. If he puts the 3-foot boards in a line, they have the same length as the 4-foot boards put in a line. Altogether he has between 16 and 25 boards. How many 3-foot boards does he have? Jack LeSage and Penny Nom lui répond.
	Duplation method of multiplication		1998-11-26
		Sara Whitford pose la question : I am wondering why 16 and multiples of 16 do not work in the ancient duplation method of multiplication used by the Egyptians. I discovered the method in the Journeys math text gr 7 level. Just curious. Am I doing something wrong?? Jack LeSage and Harley Weston lui répond.
	A Number Trick		1998-10-26
		Brenda Meagher pose la question : I'm a 37 year old mother and i have returned to school for personal reasons. I was faced with this question. Choose any number less than 10, multiply it by 8547, then take your answer and multiply it by 13. I chose the number 8. 8547 x 8 -------- 68376 and 68376 x 13 --------- 205128 68376 --------- 888888 Any number chosen from 1 to 9 will result in the same form of answer.If the number two is used you will end up with 222,222.etc So my question is, is there another number that will results in the answers. Harley Weston lui répond.
	Multiplying by Nine - Chismbop Style		1998-04-27
		Noria Jones pose la question : About a year ago a grade 5 teacher at my son's school taught the children how to multiply the 9 times table on their fingers quickly. It was part of a kind of finger math kind of thing... Patrick Maidorn lui répond.
	Greatest Common Factor.		1998-01-09
		Percy Stribling pose la question : how do you figure out what the greater common factor is? Penny Nom lui répond.
	Roman Numerals		1997-10-31
		Mark Curts pose la question : I am looking for some resources for teaching Roman Numerals. I would like to expand upon the basic concepts, by locating some addition, subtraction, multiplication or division problems written with Roman Numerals. -- Mark Curts Chris Fisher lui répond.
	Two Questions		1997-08-28
		Faye Tan pose la question : I am a trainee teacher. I would appreciate it very much if you could help me solve the following two problems which I think are meant for students at middle grade. 1. If a hen and a half lays an egg and a half in a day and a half, how many hens are needed to lay a dozen eggs in one day? 2. There are fewer than 200 passengers on a train. If they get off in pairs, one passenger will be without a partner. If they get off in groups of 3 or 4, there will still be one passenger left by himself. However, if they get off in groups of 5, no one will be left by themselves. How many passengers are there on the train? Penny Nom lui répond.
	Priority of operations		1996-11-04
		Wallace pose la question : What is the answer to this problem? Let x=-2 and y=3. Evaluate 12x / 2y (if the old division sign is used). Chris Fisher lui répond.
	How many digits are there in 2^2520?		1996-10-07
		Rita Leung pose la question : A)The number 64 is a sq., a cube, and a sixth power because 64=8*8, 4*4*4, 2*2*2*2*2*2. Find the smallest integer greater than 1 that is a sq., a cube, a 4th, 5th, 6th, 7th, 8th, 9th and 10th power. I have found that the answer is 2 to the power 2520th. B) How many digits are in the correct answer to part A? The answer is uncertain. It is either 758 or 759. Can you give me any ideas? Penny Nom lui répond.
	(-3)x(-2)		1995-10-25
		Azmat pose la question : Why is (-3)x(-2) = 6? Herley Weston and Ed Giesbrecht lui répond.

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