Sum Time introduces the very young to simple counting activities, and advances to simple multiplication! Counting, addition, subtraction and multiplication are made fun with Sum Time! Self-correcting tiles and cards make learning easy. Sum Time co...
Sum Time introduces the very young to simple counting activities, and advances to simple multiplication! Counting, addition, subtraction and multiplication are made fun with Sum Time! Self-correcting tiles and cards make learning easy. Sum Time comes in its own reusable, plastic carrying case.
