Addition and Subtraction

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 is a sum?

Back

The sum is the result of adding two or more numbers together.

Front

What is a difference?

Back

The difference is the result of subtracting one number from another.

Front

What does it mean to find the missing addend?

Back

Finding the missing addend means determining what number needs to be added to another number to reach a specific total.

Front

What is a doubles fact?

Back

A doubles fact is an addition problem where both numbers are the same, like 4 + 4.

Front

What is the doubles fact for 6?

Back

6 + 6 = 12.

Front

If you have 7 and you add 3, what is the total?

Back

7 + 3 = 10.

Front

What is the equation for 11 minus 3?

Back

11 - 3 = 8.

Front

What is the first step in adding 6 + 6 + 2?

Back

First, add the doubles: 6 + 6 = 12, then add 2 to get 14.