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

How do you subtract 155 - 63 using regrouping?

Back

First, regroup 155 to 140 and 15. Then subtract: 15 - 3 = 12 (write down 2, carry over 1), 4 - 6 requires borrowing, so it becomes 14 - 6 = 8. Finally, 1 - 0 = 1. The answer is 92.

Front

What is the first step in subtracting 738 - 259?

Back

The first step is to look at the ones place: 8 - 9 requires regrouping, so you borrow from the tens place.

Front

What do you do when the top digit is smaller than the bottom digit in subtraction?

Back

You regroup by borrowing from the next left column.

Front

Calculate 55 - 46 using regrouping.

Back

Regroup 55 to 40 and 15. Then subtract: 15 - 6 = 9 and 4 - 4 = 0. The answer is 9.

Front

What is the result of 1,630 - 547?

Back

The result is 1,083.

Front

Explain the term 'regrouping' in subtraction.

Back

Regrouping is the process of borrowing from a higher place value to perform subtraction when the top digit is smaller than the bottom digit.

Front

What is the answer to 922 - 355?

Back

The answer is 567.

Front

How do you check your subtraction answer?

Back

You can check your subtraction by adding the answer to the number you subtracted from and ensuring it equals the original number.

Front

What is the importance of place value in subtraction?

Back

Place value helps determine which digits to borrow from when performing subtraction.