# Add 3 Single Digit Numbers

## Overview

By now you should be comfortable with adding two numbers.

In this lesson, we are going to learn how to add **three** numbers together.

**Look at the example below:**

When adding **three** numbers, choose two to add first.

In this case, we can add **6 + 3**.

**6 + 3 = 9.** Now, we will take our sum of 9 and join it with our last addend.

9 + 2 = 11

Therefore,

6 + 3 + 2 = 11

Let’s try a few more problems together! Use the pictures to help you solve.

In this case, we can first add **3 + 1**.

**3 + 1 = 4.** Now, we will take our sum of 4 and join it with our last addend.

4 + 5 = 9

Therefore,

3 + 1 + 5 = 9

We can first add **4 + 5**.

**4 + 5 = 9.** Now, we will take our sum of 9 and join it with our last addend.

9 + 7 = 16

Therefore,

4 + 5 + 7 = 16

We can first add **2 + 5.**

**2 + 5 = 7.** Now, we will take our sum of 7 and join it with our last added.

7 + 1 = 8

Therefore,

2 + 5 + 1 = 8

We can first add **6 + 3.**

**6 + 3 = 9.** Now, we will take our sum of 9 and join it with our last addend.

9 + 4 = 13

Therefore,

6 + 3 + 4 = 13

We can also **add** the numbers in **any order** and we will still get the **same** sum!

**For example:** We could add **6 + 4** first and then join the last addend of 3 with it.

6 + 4 = 10

10 + 3 = 13

6 + 3 + 4 = 13

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