3rd Grade Subtraction/Addition Review

Front

What is addition?

Back

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

Front

What is subtraction?

Back

Subtraction is the mathematical operation of taking one number away from another to find the difference.

Front

How do you find the total number of items from multiple groups?

Back

You can find the total number of items by adding the quantities of each group together.

Front

What is a number sentence?

Back

A number sentence is a mathematical statement that includes numbers, operations, and an equal sign.

Front

How do you solve a word problem involving addition?

Back

Identify the quantities involved, determine what is being asked, and then write a number sentence to find the answer.

Front

What is the purpose of using a number line in addition and subtraction?

Back

A number line helps visualize the process of adding or subtracting numbers by showing their positions on a line.

Front

What is the relationship between addition and subtraction?

Back

Addition and subtraction are inverse operations; knowing one can help you solve the other.

Front

How can you check your addition?

Back

You can check your addition by using subtraction to see if the sum matches the original numbers.

Front

What is a word problem?

Back

A word problem is a mathematical question presented in a narrative form that requires interpretation and problem-solving.

Front

How do you determine how many more items are needed?

Back

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