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

What is 33 - 28?

Back

5

Front

What is 54 - 17?

Back

37

Front

What is 75 - 36?

Back

39

Front

What is 52 - 25?

Back

27

Front

If you have 4 in the ones place and need to subtract 7, what do you do?

Back

You regroup from the tens place, making the 4 into 14 and subtract 7 from 14.

Front

What does it mean to borrow in subtraction?

Back

Borrowing means taking 1 from the next higher place value to help with subtraction.

Front

What is the difference between 28 and 0?

Back

28