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 have been taken away.

Front

What does regrouping mean in subtraction?

Back

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

Front

Solve: 43 - 16 = ?

Back

27

Front

Solve: 59 - 39 = ?

Back

20

Front

Solve: 29 - 11 = ?

Back

18

Front

Solve: 57 - 24 = ?

Back

33

Front

Solve: 86 - 50 = ?

Back

36

Front

What is the first step in subtraction with regrouping?

Back

The first step is to line up the numbers by their place values (ones, tens, etc.).

Front

When do you need to regroup in subtraction?

Back

You need to regroup when the digit in the top number is smaller than the digit in the bottom number in any column.

Front

What do you do if you need to subtract 7 from 3 in the ones place?

Back

You regroup by borrowing 1 from the tens place, making the 3 into 13.