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Kumon |
1998-11-09 |
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Kathy Steele pose la question : Perhaps I am not spelling this correctly,since there is nothing to be found on Kumin Math, but my search for info on this topic led to this site. My understanding is that it is a program of repeated drills. Do you have any additional information? I know that this will come up during Parent conferences since some of my Jr. High students are talking about it. Jack LeSage and Harley Weston lui répond. |
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Triangular Numbers |
1998-10-30 |
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Matt pose la question : i would like to know about triangular numbers and it history i would also like to know about the history of prime numbers thank you Chris Fisher lui répond. |
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Divisibility by 11 |
1998-10-28 |
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Pat Duggleby pose la question : I am an upgrading instructor at a drop-in program in Regina. One of my students is taking General Math 30 through correspondence, and we have run into some confusing instructions. The section is about divisibility rules, and we did just fine up until the rule for Divisibility by 11. The statement is as follows: | If the difference between the sum of the odd-numbered digits and the sum of the even-numbered digits, counted from right to left, is divisible by 11, then the number is divisible by 11. | . . . Penny Nom lui répond. |
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A Puzzle |
1998-10-27 |
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Bruce Bragnu pose la question : We are trying to solve what SHOULD BE a simple 7th grade problem and have run into a wall. It is: ABCD ABCD ABCD ABCD ------- EBEA It is an addition problem. Each particular letter represents the same digit. We are looking for what number "B" represents. We have tried a multitude of solutions and have come up empty. Penny Nom lui répond. |
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Fractions |
1998-10-27 |
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Jessica Braimoh pose la question : I have a problem that I just can't figure out!! Put into a fraction a) -1.157... b) 0.046... c) 0.032... d) -0.3234... Please show how you got the answer and how you came to it(step by step) Thanks Jessica Braimoh grade 9 Ontario Harley Weston lui répond. |
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A Six Digit Number |
1998-10-27 |
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Craig Bedard pose la question : If a certain six-digit number is split into two parts, one constituting the first three digits and the other the last three digits, and the two parts are added and the resultiong sum squared, it is found that the product is the original six digit number. What is the original six-digit number? At first it seemed liked an impossible question, until it hit me...how long will it take you? Jason Stein and Dan Usselman lui répond. |
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A Number Trick |
1998-10-26 |
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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. |
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Logs |
1998-10-21 |
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Benny pose la question : What does log means? How come we have to use log Chris Fisher lui répond. |
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Complementary and Supplementary Angles |
1998-10-21 |
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Christina Saunders pose la question : I am in 9th grade and my math teacher wanted us to find out why complimentary angles are called complimentary and why supplimentary angles are called supplimentary. I have looked everywhere and asked numerous people, but I have yet to find an answer. My math teacher said it had something to do with trigonometry. Do you have an answer for me? Chris Fisher and Penny Nom lui répond. |
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The Left Side of a Parabola. |
1998-10-20 |
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Shay pose la question : Find the parametrized equation for the left half of the parabola with the equation: Y=x^2-4x+3 Chris Fisher lui répond. |
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Adding Fractions |
1998-10-15 |
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Lindsay pose la question : please help me!!!! Harley Weston lui répond. |
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Problem Solving |
1998-10-15 |
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Pamela Fisher pose la question : Can you give me a comprehensive list of problem solving stategies. I teach grade one in a K to 8 school and we are working on improving problem solving at all grade levels. I have heard that there is a list of various strategies that we could adapt to different grade levels. Any help you give me would be appreciated. Thank you. Pamela Fisher Walter Whiteley lui répond. |
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A Linear System |
1998-10-08 |
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Jason Bussey pose la question : The linear systems with the following pattern all have the same solution. Is their some kind of reasoning as to why this is so? 2x+3y=4 3x+4y=5 4x+5y=6 5x+6y=7 The solution is always x=-1, y=2 Thank you Jason Penny Nom lui répond. |
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Operations Research |
1998-10-08 |
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Lisa Barrett pose la question : What is the history of operations research and the study of linear programming? Judi McDonald lui répond. |
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Fractions |
1998-10-07 |
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Nikki Lakevold pose la question : -5 over 9 minus -2 over 3 plus -7 over 6 = ??? This is a fraction question and I really don't know why the back of my textbook says -19 over 18 when I got -23 over 18,, am I wrong??? Harley Weston lui répond. |
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