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 left 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

How do you subtract 15 from 32 using regrouping?

Back

First, regroup 32 to 2 tens and 12 ones. Then subtract: 12 - 5 = 7 and 2 - 1 = 1. The answer is 17.

Front

What is the first step in subtracting 54 from 102?

Back

The first step is to look at the ones place: you cannot subtract 4 from 2, so you need to regroup from the tens place.

Front

If you have 300 - 175, how do you approach it?

Back

Regroup 300 to 290 and 10. Then subtract: 10 - 5 = 5, 9 - 7 = 2, and 2 - 1 = 1. The answer is 125.

Front

What is the result of 250 - 87?

Back

First, regroup 250 to 240 and 10. Then subtract: 10 - 7 = 3, 4 - 8 (regroup to 3) = 6, and 2 - 0 = 2. The answer is 163.

Front

Explain the term 'minuend'.

Back

The minuend is the number from which another number (the subtrahend) is subtracted.

Front

Explain the term 'subtrahend'.

Back

The subtrahend is the number that is to be subtracted from another number (the minuend).

Front

What is the answer to 1000 - 450?

Back

To solve, regroup 1000 to 900 and 100. Then subtract: 100 - 50 = 50, 900 - 400 = 500. The answer is 550.

Front

How do you check your subtraction answer?

Back

You can check your subtraction answer by adding the difference to the subtrahend; if it equals the minuend, your answer is correct.