Counting Dice
Provide training in the four operations till 100.
Red dice with 5 numbers and one blank side.
Blue dice with symbols +, -, x, :, <, >
In this set:
4 dice 1 to 5
4 dice 6 to 10
4 dice 11 to 15
4 dice 16 to 20
4 dice with operation signs +, -, x, :, <, >