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

Solve: 54 - 26

Back

28

Front

Solve: 67 - 49

Back

18

Front

Solve: 70 - 16

Back

54

Front

Solve: 90 - 56

Back

34

Front

Solve: 25 - 7

Back

18

Front

What is the first step in subtraction with regrouping?

Back

The first step is to look at the digits in each column, starting from the right.

Front

Why do we need to regroup when subtracting?

Back

We need to regroup when the top digit is smaller than the bottom digit in a column, so we can borrow from the next column.

Front

What is borrowing in subtraction?

Back

Borrowing is taking 1 from the next column to help subtract when the top number is smaller than the bottom number.