2.NBT.B.5, 2.NBT.B.7, 2.NBT.B.9 Practice

Front

What is 504 + 231?

Back

735

Front

Do you need to regroup for 852 - 571?

Back

Yes, you need to regroup.

Front

If Paul counts 48 tickets and Sonya counts 20 fewer, how do you find Sonya's tickets?

Back

Subtract 2 tens from 48.

Front

What is 237 + 122?

Back

359

Front

Do you need to regroup for 538 - 219?

Back

Yes, you need to regroup.

Front

What does regrouping mean in addition?

Back

Regrouping means carrying over a value to the next column when the sum exceeds 10.

Front

What does regrouping mean in subtraction?

Back

Regrouping means borrowing from the next column when the top number is smaller than the bottom number.

Front

What is the value of 2 in the number 52?

Back

20, because it is in the tens place.

Front

What is the value of 5 in the number 75?

Back

50, because it is in the tens place.

Front

What is 100 + 200?

Back

300