Do I Add or Subtract?

Front

What is subtraction?

Back

Subtraction is a mathematical operation that represents the process of taking one number away from another.

Front

What is addition?

Back

Addition is a mathematical operation that represents the process of combining two or more numbers to get a total.

Front

If there are 450 seats and 286 are occupied, how do you find the number of empty seats?

Back

You subtract the number of occupied seats from the total number of seats: 450 - 286.

Front

How do you find out how many packs of M&M’s were sold if there were 361 at the start and 78 at the end?

Back

You subtract the number of packs left from the number of packs at the start: 361 - 78.

Front

If Antonio has a book with 586 pages and he read 112 pages, how do you find out how many pages are left?

Back

You subtract the pages read from the total pages: 586 - 112.

Front

Tyler had 326 stickers and now has 108. How do you find out how many he gave away?

Back

You subtract the number of stickers he has now from the number he had: 326 - 108.

Front

The acrobat is 125 feet in the air and is 79 feet higher than the trapeze artist. How do you find the height of the trapeze artist?

Back

You subtract the height difference from the acrobat's height: 125 - 79.

Front

What is the first step in solving a subtraction problem?

Back

Identify the total amount and the amount to be taken away.

Front

What is the first step in solving an addition problem?

Back

Identify the amounts to be combined.

Front

When do you use subtraction in word problems?

Back

You use subtraction when you need to find out how much is left after taking some away.