Finding Products by "Breaking it Up"
What is the _ of 31 x 11?
Break up 31 into 3 tens and 1 one.
Break up 11 into 1 ten and 1 one.
So we're going to make an array, using bas ten blocks, that has _ columns and 11 _.
The 3 hundreds blocks represent 30 x 10, or _
30 x 10 = _
1 x 10 = 10
1 x 1 = _
Add the pieces together:
3 hundreds + 4 tens + 1 one
300 + 40 + 1
341
1 answer
Finding Products by "Breaking it Up" What is the product of 31 x 11? Break up 31 into 3 tens and 1 one. Break up 11 into 1 ten and 1 one. So we're going to make an array, using base ten blocks, that has 10 columns and 11 rows. The 3 hundreds blocks represent 30 x 10, or 300. 30 x 10 = 300. 1 x 10 = 10. 1 x 1 = 1.
Add the pieces together: 3 hundreds + 4 tens + 1 one 300 + 40 + 1 341.
