Colour by Code Worksheets for Addition Facts

Solve single- and double-digit addition problems with sums up to 20.

Match a calculated sum to its assigned colour using a page's colour key.

Apply addition fact fluency repeatedly across a self-checking colouring activity.

Assign the simpler, lower-sum pages first and save pages with sums into the high teens for students who have mastered basic facts, since the difficulty is not uniform across the set.

Use the built-in self-checking nature of the colour key as a quick formative check — a colouring result that looks wrong signals an addition error worth revisiting.

Rotate the pages through a maths centre so students get repeated addition practice without repeating the same problem set.

Addition fact fluency — students solve equations with sums ranging from single digits up to 20.

Colour-key matching — students translate a numeric answer into the correct colour using a page-specific legend.

Self-checking practice — students use the colouring outcome itself to notice and correct addition errors.