2 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 2-digit subtraction with regrouping?

Back

The first step is to look at the ones place. If the top number is smaller than the bottom number, you need to regroup.

Front

How do you regroup from the tens place?

Back

To regroup from the tens place, you take 1 ten (which is 10) and add it to the ones place.

Front

Solve: 74 - 57

Back

17

Front

Solve: 63 - 12

Back

51

Front

Solve: 72 - 42

Back

30

Front

Solve: 75 - 36

Back

39

Front

What do you do if you need to subtract 8 from 3 in the ones place?

Back

You cannot subtract 8 from 3, so you need to regroup from the tens place.

Front

What is the result of 29 - 0?

Back

29

Front

What is the difference between 50 and 25?

Back

25