Decomposing Arrays
This worksheet helps third-grade students practice decomposing arrays into smaller arrays to solve multiplication problems.
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Decomposing Arrays
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Decompose each array into two smaller arrays, then write a multiplication sentence for each part and find the total.
1. Look at the array below. Decompose it and find the total.
Original Array: 3 x 8 =
Decompose into:
x =
x =
Total: + =
2. Decompose the array below in a different way.
Original Array: 3 x 8 =
Decompose into:
x =
x =
Total: + =
3. Decompose the array below and find the total.
Original Array: 4 x 8 =
Decompose into:
x =
x =
Total: + =
4. Decompose the array below in a different way.
Original Array: 4 x 8 =
Decompose into:
x =
x =
Total: + =
5. Sarah has 6 rows of stickers with 7 stickers in each row. Draw the array and then decompose it to find the total number of stickers.
Decomposition:
x =
x =
Total: + =