Double Digit Subtraction with Regrouping #1

Front

What is double digit subtraction?

Back

Double digit subtraction is the process of subtracting numbers that have two digits, such as 45 - 37.

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

How do you subtract 7 from 21?

Back

21 - 7 = 14.

Front

What is 45 - 37?

Back

45 - 37 = 8.

Front

What is 46 - 27?

Back

46 - 27 = 19.

Front

What is 51 - 18?

Back

51 - 18 = 33.

Front

What is 35 - 27?

Back

35 - 27 = 8.

Front

What is the first step in double digit subtraction?

Back

The first step is to line up the numbers by place value.

Front

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

Back

You regroup by borrowing from the next column.

Front

What is the result of 50 - 20?

Back

50 - 20 = 30.