These 20-sided dice show the numbers 1 to 10 (each two times). By using two, you can easily have your kids practice multiplication tables from 1 to 100.
Make two dice, roll them, and calculate the product. Or, if you use three dice, you can practice divisions as well: Roll two for the two digits of the number to be divided, and the third for the divisor.
Since the numbers 1-4 are a bit boring, I have provided a second version where these numbers appear just once on the die, and the number 6, 7, 8, and 9 appear three times.
Alternative, you can use these 8-sided dice:
They show the numbers 3-10, eliminating the “trivial” numbers 1 and 2. They are a bit easier to make, and allow you to focus on the actually difficult parts of the multiplication table.
You can also combine both, using one 8-sided die for the tens, the 20-sided die for the units, and the other 8-sided die for the divisor:
Here are the templates:
Icosahedra with numbers 1-10, where 6-9 are overrepresented