Subtract 2-Digit With Regrouping

Front

What is regrouping in subtraction?

Back

Regrouping in subtraction is when you rearrange numbers to make it easier to subtract, especially when the top number is smaller than the bottom number in a column.

Front

How do you subtract 25 - 17 using regrouping?

Back

First, regroup 25 to make it 20 and 5. Then, subtract 10 from 5 (which becomes 15) and subtract 7 from 20 (which becomes 13). So, 25 - 17 = 8.

Front

What does it mean to borrow in subtraction?

Back

Borrowing means taking 1 from the next higher place value to help subtract when the top number is smaller than the bottom number.

Front

What is the first step in subtracting 42 - 19?

Back

The first step is to look at the ones place: 2 - 9. Since 2 is smaller than 9, you need to regroup.

Front

If you have 53 - 28, what do you do first?

Back

First, look at the ones place: 3 - 8. Since 3 is smaller than 8, you need to regroup from the tens place.

Front

What is the result of 70 - 45?

Back

The result is 25.

Front

How do you subtract 64 - 29?

Back

First, regroup 64 to 54 and 14. Then, subtract: 14 - 9 = 5 and 54 - 20 = 34. So, 64 - 29 = 35.

Front

What is the difference between 81 and 36?

Back

The difference is 45.

Front

When subtracting, what do you do if the top number is smaller than the bottom number?

Back

You regroup by borrowing from the next column.

Front

What is 90 - 37?

Back

The result is 53.