Addition Color by Number

Give a child a single sheet for a half hour to forty-five minute math block, or split it over two days: top half first, bottom half after. Because the legend has only a few colors, most answers repeat, so a child can work through one answer at a time or go square by square. The answer key shows the finished picture and is useful for checking. New version swaps the picture and every problem, which helps for a retry or for siblings.

The practice is addition within twenty: number bonds, doubles and make-ten facts. Sums from 3 to 17 stay below twenty, so no regrouping is needed. Children often stumble on the sums that cross ten, like 8 plus 7, and on the largest sums near 17. When facts start to feel automatic, move on to the subtraction page, which uses the same layout but the opposite operation.

Start with a child who knows sums to 10 by memory and let them use a number line or counters for the larger ones. If squares feel slow, set a timer and let them finish only half the grid first. The picture is random, so press New version if your child wants a different one. For mixed review, ask them to switch Mode to Subtraction on the next sheet.

How many addition problems are on one page?

There are 144, one for every square in the grid. Many share an answer, so the legend only needs a handful of colors. Children often find the work moves faster once the picture starts to appear.

Which picture will my child get?

The picture is picked at random each time, and New version brings another one with new problems. If you want a specific picture, such as a cat or a sailboat, open that picture's own page and switch Mode to Addition.

What if my child gets an addition wrong?

The picture will look odd where a square is the wrong color, which acts as a built-in clue. Check the problem again and compare with the answer key, which shows every square colored correctly.