







A 4 by 7 array 
20151027 

star pose la question : don breaks a 4x7 array into a 2x7 array and another array.what is the fact for don's second array Penny Nom lui répond. 





Arrays 
20140118 

Yesenia pose la question : Ray makes an array that has four rows of four counters. He wants to make two more arrays using the same number of counters. He wants more than one counter in each row. What two arrays can he make? Penny Nom lui répond. 





A number puzzle 
20120407 

Kenya pose la question : my number is less than 25
my number of tiles will make only one rectangle
my number is odd
my number is a factor of 36 Penny Nom lui répond. 





One factor array 
20110916 

Hana pose la question : hi my brother a 5th grade have a question. this is what it say "i have only one factor array, and i am between two numbers 12 and 16. what number am i?" Penny Nom lui répond. 





A division sentence for an array 
20101005 

Laura pose la question : On a math test Grace needs to look at an array and write a division sentence for the array. Grace writes 18/3=6 on her answer sheet. Describe what the array on Graces test looks like. Penny Nom lui répond. 





Rectangular arrays 
20100929 

Kim pose la question : My 4th grader has started working on rectangular array that shows 2 factors of a number.
The problem reads on centimeter grid paper draw as many arrays as you can for each of the #'s 2,3,4, 5,6,7,,11,12,15 and 16. That would be great except I have no idea what they are talking about and I cannot offer any help to my daughter. Penny Nom lui répond. 





Arrays 
20100909 

Susan pose la question : I'm a lawyer but evidently incredibly stupid at 4th grade math. . . .Question: cover a tabletop with 9 rows of square tiles with 9 squares in each row. How many tiles cover the tabletop? Then, the paper shows a 9x9 array and asks how it is used to solve the problem. My daughter wrote 9x9=81. The next question is "what are the products of the two smaller arrays?" ???? There are no other arrays  are we to make smaller arrays from the 9x9? how? Robert Dawson lui répond. 





Arrays 
20100121 

Raven pose la question : Mary says that the greater the number of counters, the greater the number of different arrays you can form.
Give an example that shows that Mary is wrong. Penny Nom lui répond. 





A 4 by 4 array 
20100106 

Patricia pose la question : Ray makes an array that has four rows of four counters. He wants to make two more arrays using the same number of counters. He wants more than one counter in each row. What two arrays can he make? Robert Dawson lui répond. 





An array 
20091028 

felicia pose la question : what factors are shown in the array below?
**
**
**
**
**
** Penny Nom lui répond. 





Arrays 
20090423 

billie pose la question : Ray makes an array that has 4 rows of 4 counters. He wants to make 2 more arrays using the same number of counters.He wants more than 1 counter in each row.What 2 arrays can he make? what 2 can he? What is an array anyway? Robert Dawson lui répond. 





Arrays of chairs 
20090108 

Vickie pose la question : I am not sure how to help my son figure out one of his math journal problems.
He is in third grade and this just seems a bit much for him.
They have only been working on multiplication for about 3 weeks
and just went back to school from Christmas break.
Their other homework has been about arrays,
so I guess his teacher wants this answered in some sort of array.
Unfortunately I'm not sure.
The problem states: If you have 24 chairs find the total number
of ways the chairs can be arranged. Robert Dawson and Penny Nom lui répond. 





An array of tulip bulbs 
20080906 

Mary pose la question : My daughter had this problem on one of her tests. She forgot to ask her teacher what she did wrong. I understand she did not answer the question
in full, but what she did answer I feel is right.
Please explain to me
the correct answer. Thank you. Mary Harley Weston lui répond. 





I am a prime number 
20071031 

sherry pose la question : I am a prime number. I can not be shared fairly except by one group. My array can only be one row.
array can only be one row. Can you please explain this out to me so I can help my child with it.
Thanks Penny Nom lui répond. 





An array for 31 
20071031 

sherry pose la question : How do you make an array with the number 31 Penny Nom lui répond. 





Find my number using the following clues: 
20070918 

T pose la question : Find my number using the following clues:
my number will make an array 2 rows wide
my number is greater than 5
my number is less than 30
my number will make a square array
my number is________?
I was not sure where to begin with this word problem  can you help??
Thank you,
T Penny Nom lui répond. 





A number story 
20070914 

Roxanne pose la question : Make an array for the number sentence 4*8= 32
then they want me to write a number story for the number sentence. Penny Nom lui répond. 





Making dot arrays 
20070905 

angela pose la question : What do we call the numbers that cannot be arranged into 2row arrays? Penny Nom lui répond. 





Arrays 
20070314 

Charla pose la question : My 3rd grader has been given a problem about mathematical arrays.
Name two smaller arrays you can use to find the product.
7 x 6=3D ____ Diane Hanson lui répond. 





Can you make an array for 19? 
20070125 

Caleb pose la question : can you make an array for 19 Penny Nom lui répond. 





Arrays 
20060928 

Taylor and Laura pose la question : Hello. My daughter Taylor is in 4th grade and has an assignment about Arrays. My husband and I had no idea what an Array was. At least not in mathematical terms. What is an array? I don't think I ever studied this when I was a kid. Penny Nom lui répond. 





2row arrays 
20060906 

Liz & Samantha pose la question : What do you call the numbers that cannot be arranged into 2row arrays? Penny Nom lui répond. 





Brokenline graphs and histograms 
20060216 

George pose la question :
1. What is the main difference between a brokenline graph and a histogram? Both represent continuous variables.
2. What is the correct way to read a multiplication array: xaxis first and then yaxis, other way around or it doesn't matter?
Penny Nom lui répond. 





Arrays of 36 items 
20060201 

A parent pose la question : My third grader brought home this math problem:
Here are five arrays for 36.
1. Lable the dimension for each array.
2. Write a multiplicatiuon sentence for each arrray. Penny Nom lui répond. 





An array problem 
20060131 

Cynthia pose la question :
Write a number sentence for this array........
It's a rectangle box 3 down and 4 wide.
Penny Nom lui répond. 





Write the array for 3 
20060129 

Jamie pose la question : My son is a 5th grader and came home with a math question that I can't answer. The question stated  "Write the array for 3" I don't understand how this can be done with just one number. Penny Nom lui répond. 





What are math arrays? 
20060118 

Jeff pose la question : What are math arrays? Penny Nom lui répond. 





Arrays 
20060112 

Sergio and Anthony pose la question :
Hi my son Anthony is in Third Grade and the question on his homework that we're having trouble answering is the following:
Name two smaller arrays you can use to find the product. 6 x 9 = 54
What are they exactly asking? Which is the correct answer?
Diane Hanson and Penny Nom lui répond. 





An array of pennies by year 
20051229 

Sheila pose la question : What is an array? How do you create an array using 100 pennies by years? Penny Nom lui répond. 





Arrays 
20051017 

Danette pose la question : My son's fourth grade workbook is asking him to draw four possible arrays for 72 marbles.
I don't understand what they mean Penny Nom lui répond. 





Who is taller: John or Mary? 
20050914 

Ulises pose la question : All the students in a school are arranged in a rectangular array. After that, the tallest student in each row was chosen, and then among these John Smith happened to be the shortest.Then, in each column, the shortest student was chosen, and Mary Brown was the tallest of these. Who is taller: John or Mary? Penny Nom and Claude Tardif lui répond. 





Arrays 
20040423 

Jan pose la question : 4x7 = 28
How many arrays can this have? How do you determine the arrays??? Penny Nom lui répond. 





Arrays 
20040219 

A parent pose la question : please demonstrate mathematical arrays fro a 3rd grader Penny Nom lui répond. 





Arrays of pennies 
20040117 

Kathleen pose la question : How do I create an array of 100 pennies? Penny Nom lui répond. 





Two row arrays 
20030903 

Madalyn pose la question : My question is, what are #'s that can not be arranged in two row arrays called? Penny Nom lui répond. 





An array of pennies 
20030523 

Saundra pose la question : If you have 100 pennies and you are suppose to make an array do you arrange the pennies by date? Penny Nom lui répond. 





Mathematical Arrays 
19980501 

Gene Lanctot pose la question : Could someone please explain what a mathematical or arithmetical array is? The array in question is used in grade three math in Ontario. I would also like to know what its purpose is. Harley Weston lui répond. 

