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 taking one number away from another.

Front

What does regrouping mean in addition?

Back

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

Front

What does regrouping mean in subtraction?

Back

Regrouping in subtraction means borrowing from the next column when the top number is smaller than the bottom number.

Front

What is the sum of 282 and 239?

Back

The sum of 282 and 239 is 521.

Front

What is 524 + 191?

Back

524 + 191 = 715.

Front

What is 614 - 387?

Back

614 - 387 = 227.

Front

If a trip is 120 miles and 51 miles have been traveled, how many miles are left?

Back

120 - 51 = 69 miles left.

Front

What is 734 - 573?

Back

734 - 573 = 161.

Front

How do you check your addition?

Back

You can check your addition by adding the numbers again or by using subtraction.