Subtraction with regrouping

Front

What is subtraction?

Back

Subtraction is the process of taking one number away from another. It shows how many are left after some are taken away.

Front

What does regrouping mean in subtraction?

Back

Regrouping in subtraction means rearranging numbers to make it easier to subtract, especially when the top number is smaller than the bottom number in a column.

Front

How do you subtract 59 - 39?

Back

59 - 39 = 20.

Front

How do you subtract 45 - 32?

Back

45 - 32 = 13.

Front

How do you subtract 76 - 59?

Back

76 - 59 = 17.

Front

How do you subtract 71 - 39?

Back

71 - 39 = 32.

Front

How do you subtract 74 - 19?

Back

74 - 19 = 55.

Front

What is the first step in subtraction with regrouping?

Back

The first step is to line up the numbers by place value (ones, tens, hundreds).

Front

What do you do if the top digit is smaller than the bottom digit in a column?

Back

You need to regroup from the next column to the left.

Front

What is the result of 100 - 45?

Back

100 - 45 = 55.