Christmas tree Mystery Picture: To 20, no crossing ten
Solve 71 problems (To 20, no crossing ten, numbers 1–20) and color the matching squares to reveal the Christmas tree. The worksheet and answer key download together.
- equations
- 71
- Largest number
- 20
- Size
- M
A green Christmas tree with a yellow star on top, red ornaments and a brown trunk. The layered branches grow wider row by row, so children can watch the tree take shape as they color.
Numbers go up to 20, but no problem bridges ten. Additions like 12 + 5, 14 + 3 or 11 + 6 keep the ones under 10, and subtractions like 17 − 4 or 19 − 6 never need to break into the ten. Answers that land exactly on a ten are allowed, so 7 + 3 = 10 and 13 + 7 = 20 appear, while 8 + 5 or 13 − 5 do not. The idea to take away is that 15 + 3 works just like 5 + 3 with a ten in front.
Within 20 Without Regrouping: Math Mystery PicturesChristmas tree Math Mystery Picture Worksheet