Addition and Subtraction with Regrouping

Front

What is regrouping in addition and subtraction?

Back

Regrouping is the process of rearranging groups of ten or hundred in order to perform addition or subtraction more easily.

Front

How do you subtract two numbers when the top digit is smaller than the bottom digit?

Back

You need to regroup from the next left digit, borrowing ten from it to make the top digit larger.

Front

What is the result of 56 - 48?

Back

8

Front

What is the result of 93 - 27?

Back

66

Front

What is the sum of 47 and 16?

Back

63

Front

What is the sum of 21 and 47?

Back

68

Front

What is the result of 63 + 25?

Back

88

Front

What is the first step in solving a subtraction problem with regrouping?

Back

Identify if you need to borrow from the next digit.

Front

What is the first step in solving an addition problem with regrouping?

Back

Add the digits in each column starting from the right, carrying over if the sum exceeds ten.

Front

What does it mean to carry over in addition?

Back

Carrying over means to move a value of ten to the next left column when the sum of a column exceeds ten.