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 difference between 71 and 45?

Back

26

Front

What is the difference between 36 and 18?

Back

18

Front

What is the difference between 72 and 42?

Back

30

Front

What is the difference between 57 and 38?

Back

19

Front

How do you subtract 2-digit numbers?

Back

Line up the numbers by place value, subtract the ones place, and if needed, regroup from the tens place.

Front

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

Back

You borrow 1 from the tens place to make the top digit larger.

Front

What is the first step in subtracting 71 - 45?

Back

Line up the numbers: 71 on top and 45 below it.

Front

What is the result of 36 - 18?

Back

18

Front

What is the result of 72 - 42?

Back

30