Adding and subtracting with regrouping

Front

What is regrouping in addition?

Back

Regrouping in addition is when you combine numbers and if the sum is more than 10, you carry over the extra to the next column.

Front

What is regrouping in subtraction?

Back

Regrouping in subtraction is when you borrow from the next column if the top number is smaller than the bottom number.

Front

What is 92 + 9?

Back

101

Front

What is 86 - 52?

Back

34

Front

What is 47 - 26?

Back

21

Front

What is 10 + 23?

Back

33

Front

What is 40 + 5?

Back

45

Front

What do you do when the sum is more than 10 in addition?

Back

You carry over the extra to the next column.

Front

What do you do when you need to subtract a larger number from a smaller number?

Back

You borrow from the next column.

Front

What is the sum of 30 + 25?

Back

55