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Add 3 Single Digit Numbers


A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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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Practice Question 1

Let’s practice! Add the three numbers together to find the correct sum.


Practice Question 2


Practice Question 3


Practice Question 4

Write an addition sentence and then add the numbers on the petals to find the sum.


Practice Question 5


See Related Worksheets:
1st grade
Silly Sums
Worksheets
 (0)
These addition problems are so silly with their three addends! Students will love using the number l...
1st grade
An Addend for Each Eye
Worksheets
 (0)
There's a three-eyed monster on this worksheet who loves three-addend addition! Students will like i...
1st grade
Three Numbers?!?!
Worksheets
 (0)
Even monsters can find three-addend addition a little intimidating sometimes. Students can help thes...
1st grade
Bronto and Baby Celebrate Addition
Worksheets
 (0)
This adorable worksheet is a great introduction to adding three one-digit numbers! Sums are all fewe...

Try ArgoPrep for FREE

Learn more Try ArgoPrep for FREE

Share good content with friends and get 15% discount for 12-month subscription

Share in facebook Share in twitter
You can join the addends in any order. Try each problem two different ways to check and make sure your answers are the same!
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