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 Factors and Products
An
array
is data arranged in rows
or columns. They can be used to represent factors. You can use
chips, cubes, blocks, etc. to make an array.
Stars are used in the
example below to represent the factors
and product for the
number 12.
|
Number 12 |
| ************ |
1 by 12 |
******
****** |
2 by 6 |
****
****
**** |
3 by 4 |
Consider the
following pairs of arrays the same:
1 by 12 and 12 by 1,
2 by 6 and 6 by 2,
3 by 4 and 4 by
3.
Therefore, the number
12 has 3
different arrays.
The factors of
12 are
1, 2, 3, 4, 6, and 12.
The array
represents the
product.
Number
line
You can skip
count using a number line to find the product.
|
3 x 4 = 12
Read:
3 times 4 equal to 12. |
|
The numbers
3 and
4 are the
factors and the
number 12 is the
product.
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Example: |
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The model
below is an array that represents
2
x 4
= 8
There are
2 rows and
4 columns. |
|
|
The
factors are 2 and
4.
The
product is
8. |
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The
number line
below also represents the multiplication sentence 2 x 4 = 8. |
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