Two-Digit Subtraction with Regrouping

Front

What is regrouping in subtraction?

Back

Regrouping in subtraction is when you borrow from the next higher place value to help subtract when the top digit is smaller than the bottom digit.

Front

What is the first step in subtracting two-digit numbers?

Back

The first step is to line up the numbers by place value, with the tens above the tens and the ones above the ones.

Front

What do you do if the ones place in the top number is smaller than the bottom number?

Back

You need to regroup by borrowing 1 ten from the tens place, which becomes 10 ones.

Front

Solve: 53 - 29. What is the answer?

Back

The answer is 24.

Front

What is the difference between 45 and 27?

Back

The difference is 18.

Front

How do you write a number sentence for a subtraction problem?

Back

A number sentence for subtraction shows the two numbers being subtracted and the equals sign, like this: 45 - 27 = 18.

Front

What is 46 - 28?

Back

The answer is 18.

Front

Explain how to subtract 61 - 37 step by step.

Back

First, subtract the ones: 1 - 7 (regroup to make it 11 - 7 = 4). Then subtract the tens: 5 - 3 = 2. So, 61 - 37 = 24.

Front

What does the term 'difference' mean in subtraction?

Back

The difference is the result you get when you subtract one number from another.

Front

What is the importance of lining up numbers by place value?

Back

Lining up numbers by place value ensures that you subtract the correct digits from each other.