Addition Color by Number

Addition color by number makes practicing sums feel like a game. Each space in the picture holds an addition problem. Children solve it, find the answer in the color key, and color the space. When every sum is solved, a rocket, a fish or a rainbow appears. These 20 free printable worksheets cover addition within 10 and within 20, each with an answer key, and the maker above builds more.

Quick answer: In addition color by number, students solve an addition problem in each space and color it using a key that links each answer to a color, such as 7 = yellow. It adds motivation to fact practice and the picture checks the answers. This page has 20 free addition color by number worksheets (PDF) with answer keys. Updated October 2026.

Addition color by number samples

Four of the 20 PDFs. The full list, with ten pictures for sums to 10 and ten for sums to 20, is under Ready-to-print worksheets.

How addition color by number works

1. Read the color key at the bottom of the page. Each answer matches a color.
2. Solve an addition problem in one space of the picture.
3. Find the answer in the key and color that space with the matching color.
4. Repeat until every space is colored.
5. Check the picture. If a space looks wrong, the sum may be wrong.

Color key example

Every page has its own color key. Here is a typical one for sums to 10, with the answers on the left of each pair:

Addition within 10: facts and strategies

Sums to 10 are the first facts children should know without counting. These strategies help:

Color by number addition within 20: making ten

For color by number addition within 20, sums land between 11 and 20, and the make-a-ten strategy is the most useful. Break one number so that the other reaches 10 first:

Try ten addition problems

Use these as a warm-up before the coloring worksheets.

Addition coloring worksheets and math color by number

This page is also searched as color by number addition, addition color by number worksheets, color by addition, addition coloring worksheets, math color by number and addition color by number printable. All of them are the free PDFs above, with an answer key, for US Letter or A4, with no sign-up. For subtraction, multiplication and division, see the math coloring worksheets page.

Addition vocabulary

Students answer questions faster when they know the words. These are the terms used on the worksheets and answer keys:

Common Core standards for addition color by number

These worksheets practice the Common Core operations and algebraic thinking standards:

Common mistakes with addition color by number

How to use these addition color by number worksheets

Use the addition color by number worksheets for five to ten minutes a day. Begin with sums to 10, and move to the sums to 20 sheets when facts are quick. Let your child choose the picture, since choice raises motivation, and give crayons or colored pencils that match the color key.

Check the finished picture together. A wrong answer shows up as a wrong color, so children learn to self-correct. Print a different addition color by number page each day and display the finished pictures. The answer key is on the second page of every PDF.

A weekly plan for addition color by number

More math practice

• Math coloring worksheets for subtraction, multiplication and division.
• Addition and subtraction worksheets.
• Color by number.
• The addition worksheets hub.