Double Digit Subtraction w/o Regrouping

Front

What is double digit subtraction?

Back

Double digit subtraction is the process of subtracting two numbers that each have two digits, without needing to regroup or borrow from the next column.

Front

What does 'without regrouping' mean in subtraction?

Back

'Without regrouping' means that when subtracting, the top digit is larger than the bottom digit in each column, so you do not need to borrow from the next column.

Front

What is the result of 78 - 63?

Back

15

Front

What is the result of 97 - 43?

Back

54

Front

What is the result of 67 - 45?

Back

22

Front

What is the result of 58 - 27?

Back

31

Front

What is the result of 92 - 72?

Back

20

Front

How do you check your subtraction answer?

Back

You can check your subtraction answer by adding the result to the smaller number. If it equals the larger number, your answer is correct.

Front

What is the first step in double digit subtraction?

Back

The first step is to line up the numbers by their place values, with the larger number on top.

Front

What do you do if the top digit is smaller than the bottom digit in a column?

Back

In double digit subtraction without regrouping, this situation does not occur. If it did, you would need to regroup.