Ghost Mystery Picture: To 20, no crossing ten
Solve 78 problems (To 20, no crossing ten, numbers 1–20) and color the matching squares to reveal the Ghost. The worksheet and answer key download together.
- equations
- 78
- Largest number
- 20
- Size
- M
A friendly little ghost with a surprised round mouth, rosy cheeks and a wavy hem. It looks more cute than spooky, so it suits even children who don't like scary things.
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 PicturesGhost Math Mystery Picture Worksheet