House Pixel Addition to 20 Color by Number
A printable color-by-number mystery picture worksheet with a hidden house. Solve each addition problem (sums from 11 to 20) and color the square by its answer. Great for first and second 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 house. Solve each addition problem (sums from 11 to 20) and color the square by its answer. Kids solve each problem first, then color, which makes it a great math center activity. Follow the color key exactly to see the mystery picture appear.
This page by the numbers
The picture has 169 numbered squares on a 13 x 13 grid, colored with 6 crayon colors. Light blue (number 15) fills the most squares: 60 of them. Blue (number 13) is used the least, with 8. Every answer is a number from 13 to 19, so each answer matches one color in the key.
- 13 = blue: 8 squares
- 14 = green: 13 squares
- 15 = light blue: 60 squares
- 16 = yellow: 37 squares
- 18 = brown: 15 squares
- 19 = red: 36 squares
Coloring ideas
- Use markers for bold, even squares.
- Color one number at a time: find all the 1s, then all the 2s, and so on.
- Check off each color in the key when you finish it.
- Use markers or crayons for fast, bold squares; colored pencils work too.
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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