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 subtracting two-digit numbers 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 to the ones place?

Back

You take 1 ten (which is 10) from the tens place and add it to the ones place, making it larger.

Front

What is the difference between 72 and 42?

Back

30

Front

What is the difference between 57 and 38?

Back

19

Front

What is the difference between 75 and 36?

Back

39

Front

What is the difference between 36 and 18?

Back

18

Front

If you have 5 tens and you need to subtract 3 tens, what do you do?

Back

You can subtract directly because 5 tens minus 3 tens equals 2 tens.

Front

What do you do if you need to subtract 8 from 5 in the ones place?

Back

You need to regroup because 5 is smaller than 8. Borrow 1 from the tens place.

Front

What is the result of 84 - 27?

Back

57