2-Digit Subtraction with Regrouping

Front

What is 2-digit subtraction?

Back

2-digit subtraction is the process of subtracting numbers that have two digits, such as 54 or 79.

Front

What does regrouping mean in subtraction?

Back

Regrouping in subtraction means borrowing from the next higher place value when the top digit is smaller than the bottom digit.

Front

What is the first step in 2-digit subtraction?

Back

The first step is to line up the numbers by their place values (tens and ones).

Front

How do you subtract in the ones place?

Back

If the top digit in the ones place is smaller than the bottom digit, you need to regroup.

Front

What do you do when you need to regroup?

Back

You borrow 1 from the tens place, which adds 10 to the ones place.

Front

What is 79 - 9?

Back

70

Front

What is 54 - 7?

Back

47

Front

What is 68 - 6?

Back

62

Front

What is 87 - 5?

Back

82

Front

What is 63 - 4?

Back

59