Adding and Subtracting Within 1000

Front

What is addition?

Back

Addition is the process of finding the total or sum by combining two or more numbers.

Front

What is subtraction?

Back

Subtraction is the process of finding the difference between two numbers by taking one number away from another.

Front

What is the sum of 62 and 19?

Back

The sum of 62 and 19 is 81.

Front

What is the difference when you subtract 19 from 62?

Back

The difference when you subtract 19 from 62 is 43.

Front

What is the sum of 357 and 149?

Back

The sum of 357 and 149 is 506.

Front

What is the difference when you subtract 215 from 989?

Back

The difference when you subtract 215 from 989 is 774.

Front

What is the sum of 509 and 372?

Back

The sum of 509 and 372 is 881.

Front

What is the sum of 215 and 775?

Back

The sum of 215 and 775 is 990.

Front

What does it mean to regroup in addition?

Back

Regrouping in addition means carrying over a value to the next column when the sum exceeds 10.

Front

What does it mean to borrow in subtraction?

Back

Borrowing in subtraction means taking a value from the next column when the top number is smaller than the bottom number.