i.e., 81+9=90. 90 divided by .9 = 100

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]]>Get a group of people and a deck of cards. Turn over four cards. Be the first to make 24 by combining those 4 cards with any mathematical operations you like.

(I think we made the face cards 11, 12, and 13, though I don’t remember for sure. And I played with a cutthroat group of people whose math symbols included ceiling, floor, integrals…)

I’m not convinced it’s always solvable in this version, but it does give one rather a lot of practice in the ways numbers can be combined :).

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