Restrict to 4 inputs in any order

I am making Game of 24 activities for warm-ups. Is there a way I can restrict the inputs to the numbers shown on the card? Plus sometimes you can have 2 of a particular number. So sometimes it could be 4 distinct numbers and other times it may not be…I can always leave out the cards with repeating numbers.


I love this game. This is a great idea! You will want to use countNumberUsage. Here’s a Four 4s activity that might help.

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THANK YOU!!! I never would have figured this out on my own. I appreciate your help and getting back to me!!
Thank you so much!!!