Subtraction with Regrouping

Front

What is subtraction with regrouping?

Back

Subtraction with regrouping is a method used to subtract numbers when the top digit is smaller than the bottom digit in any column, requiring borrowing from the next column.

Front

What does it mean to 'regroup' in subtraction?

Back

Regrouping in subtraction means to borrow from the next higher place value when the digit in the minuend (top number) is smaller than the digit in the subtrahend (bottom number).

Front

Solve: 324 - 141 = ?

Back

183

Front

Solve: 67 - 38 = ?

Back

29

Front

Solve: 922 - 355 = ?

Back

567

Front

Solve: 55 - 46 = ?

Back

9

Front

Solve: 1,630 - 547 = ?

Back

1083

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, hundreds) and start subtracting from the rightmost column.

Front

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

Back

If the top digit is smaller than the bottom digit, you need to borrow 1 from the next column to the left.

Front

How do you borrow in subtraction?

Back

To borrow, decrease the digit in the next column to the left by 1 and add 10 to the current column's top digit.