Rainbow Pixel Addition Color by Number
A printable color-by-number mystery picture worksheet with a hidden rainbow. Solve each addition problem (sums up to 10) and color the square by its answer. Great for kindergarten and first grade.
- Size
- US Letter (8.5 × 11 in), fits A4
- Vector, prints razor-sharp at any size
- PNG
- 2550 × 3300 px, 300 DPI
- License
- Free for personal & classroom use
About this coloring page
A printable color-by-number mystery picture worksheet with a hidden rainbow. Solve each addition problem (sums up to 10) and color the square by its answer. Every square is a quick math fact, so it doubles as addition or subtraction practice. Try soft boho colors.
This page by the numbers
The picture has 126 numbered squares on a 14 x 9 grid, colored with 7 crayon colors. Light blue (number 10) fills the most squares: 30 of them. Blue (number 2) is used the least, with 8. Every answer is a number from 2 to 10, so each answer matches one color in the key.
- 2 = blue: 8 squares
- 3 = white: 22 squares
- 4 = orange: 18 squares
- 5 = yellow: 16 squares
- 6 = red: 20 squares
- 8 = green: 12 squares
- 10 = light blue: 30 squares
Coloring ideas
- Color the bands in rainbow order: red, orange, yellow, green, blue, purple.
- Have your child say each fact out loud while writing the answer.
- Use small objects like buttons or cereal to check tricky problems.
- Color one number at a time: find all the 1s, then all the 2s, and so on.
Printing tips
Download the PDF for the sharpest result and print at 100% (or “fit to page” on A4). The PNG is 300 DPI, which is handy for tablets and coloring apps. This page is free for personal, family and classroom use.
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