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 us to borrow from the next column.

Front

What do you do when you need to subtract 3 from 2 in the ones place?

Back

You borrow 1 from the tens place, making the 2 into 12, and then subtract 3 from 12.

Front

Solve: 163 - 137

Back

26

Front

Solve: 346 - 137

Back

209

Front

Solve: 80 - 49

Back

31

Front

Solve: 360 - 254

Back

106

Front

Solve: 540 - 289

Back

251

Front

What is the first step in subtraction with regrouping?

Back

Identify if you need to borrow from the next column.

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 is borrowing in subtraction?

Back

Borrowing is taking 1 from the next higher place value to help subtract a smaller digit from a larger digit.