Worksheet: Adding Three Numbers by Making 10

In this worksheet, we will practice adding three one-digit numbers by first adding two of them to make 10.


Answer the questions to find an easy way to add 6+7+3.

What is 7+3?

What is 6+10?

What is 6+7+3?


Michael started putting counters into ten frames to help him add.

Can you find the total?


We can add three numbers in any order.

Which of these is equal to the sum of 5, 9, and 1?

  • A
  • B
  • C

What is 5+9+1?


Fill in the blank: 6++3=6+10.


Add the numbers.

Find the ten frames that show the sum.

  • A
  • B
  • C


Add by making 10.


Hannah started putting counters into ten frames to help her add.

What is the total?


Add the numbers.

Hint: Can you find a way to make 10?


Adding 3 numbers is easy when we can make 10!

To find 8+7+2 we can make 10 by adding 8 and 2 first.

What number is missing ?

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