3rd Grade Subtraction/Addition Review

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 to find the difference.

Front

How do you find the total number of items sold?

Back

To find the total number of items sold, add the quantities of each item together.

Front

If you have 127 cookies and 158 cupcakes, how do you find the total?

Back

Add 127 and 158 to get the total: 127 + 158 = 285.

Front

What is the purpose of a word problem in math?

Back

A word problem helps you apply math concepts to real-life situations.

Front

How do you calculate how much money is left after spending?

Back

Subtract the amount spent from the total amount to find out how much is left.

Front

If you have $1,000 and spend $238 and $526, how do you find the remaining amount?

Back

First, add the amounts spent: 238 + 526 = 764. Then subtract from $1,000: 1000 - 764 = 236.

Front

What does it mean to have 'left' in a subtraction problem?

Back

'Left' refers to the remaining amount after some has been taken away.

Front

If Mrs. Hanson has 235 chocolate bars and Miss Kaminski eats 105, how do you find out how many are left?

Back

Subtract the eaten bars from the total: 235 - 105 = 130.

Front

How do you determine how many more items you need to buy?

Back

Subtract the number of items you already have from the total needed.