20-Sided Double Dice, 6 Per Pack, 6 Packs

Koplow Games 20-sided double dice, a die inside of a die, is great for math games! Roll it and add, subtract, multiply or divide the numbers. A great way to practice and understand basic math skills and enhance games and activities. Each pack includes 6 dice in assorted colors. Sold as 6 packs for a total of 36 dice.

Key Features :

i : Manipulative learning tool
ii : The possibilities are endless with double dice
iii : Create your own games