Turtle Mystery Picture: Adding & subtracting to 10

A turtle seen from the side, with a patterned green shell, a little head and stubby legs. The rounded shell appears first, and the head with its eye gives the picture away at the end.

Every number stays at 10 or below, with problems such as 4 + 5, 10 − 3 or 2 + 6. That covers the facts children need to know by heart before anything bigger: number bonds to 10 (7 + 3, 6 + 4), adding and taking away 1 or 2, and simple subtraction from 10. Because each answer is also a row number, the child has to read the result carefully and find the matching line, which quietly reinforces number order.