Three-Digit Addition and Subtraction Flashcard

Front

What is regrouping in addition?

Back

Regrouping in addition is the process of carrying over a value from one column to the next when the sum of a column exceeds 9.

Front

What is regrouping in subtraction?

Back

Regrouping in subtraction is the process of borrowing from the next column when the top digit is smaller than the bottom digit.

Front

Back

Front

Back

Front

Back

Front

Back

Front

Back

Front

What is the sum of two three-digit numbers?

Back

The sum of two three-digit numbers is found by adding their corresponding digits, starting from the rightmost column.

Front

What is the difference between two three-digit numbers?

Back

The difference is found by subtracting the digits of the second number from the first, starting from the rightmost column.

Front

What do you do if a column in addition exceeds 9?

Back

If a column exceeds 9, you carry over 1 to the next column on the left.