Unit 1: Addition

Addition is the mathematical process of combining two or more numbers.

Keywords:

add

plus

total 

equals 

sum

Key Phrases

This is an addition problem.

Add four and five together.

Combine four and five.

How many are there in all, when you add four and five?

What do four and five make?

4 + 5 =

What is the sum of four and five?

What does four plus five equal?

What is the total when you add four and five?

4 + 5 = 9

The sum of four and five is nine.

Four plus five equals nine.

The total of four and five is nine.