Dice are used in many different math games to randomly get number 1-6 or higher when working with two or more dice.
Here are some alternatives to using dice:
2) Alternatively, you can make your own spinner from numbers 1-6, or higher! Instead of rolling a die, spin the spinner to get different numbers. Here are step-by-step instructions that you may use at home. https://livingmontessorinow.com/how-to-make-a-paperclip-game-spinner-that-spins-easily/
3) Write numbers 1-6 on small pieces of paper and put them in a hat or a bowl. Pick one number each time instead of rolling dice!
A deck of cards are also used quite often to play math games.
Here are some alternatives:

click "Download in PDF format (free!)"
2) Create your own "cards" by using blank paper cut one size and writing numbers 1-9, and J, Q, and K 4 times (or twice)
Finally, contact your child's teacher via email to ask them if you can pick up a deck of cards or some dice (or both) from the school.
Thank you!