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We can think about place value to help us subtract.
Pick the correct way to decompose 35 into tens and ones.
Subtract 18 from 35 by following these steps:
Regroup 1 ten into 10 ones.
Take away 8 ones.
Take away 1 ten.
Benjamin used place value blocks to show 64 in 6 tens and 4 ones.
He wants to take away 6 from 64. But there are not enough ones.
Pick another way he could make 64 so he can take away 6 ones.
Take away 6 ones to find .
Look at how Mona solved a subtraction problem.
Which calculation was she working on?
Pick one way to write down what she did.
What is the answer?
Take away 25 from 42.
We can use place value cards to help us subtract groups of 10.
49 is made up of 4 tens and 9 ones.
Subtract groups of ten to find the answer.
Take away 43 from 64.