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Activities for Families

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Combo Dominoes

Game, Stage 4 – Games for Add & Sub

The setup

Use a set of dominoes that either go from 1 to 6 or 1 to 9. Each player starts with 5 random dominoes without letting the other player see them.

How to play

To start, a random domino is placed face up in the middle. After that, a player must match the top domino in the middle. Matching means that the two numbers on the top domino can be combined with any operation – add, subtract, or even multiply if you want – to make the same result as some, possibly different, operation acting on the two numbers of one of your dominoes.

For example, if [1, 5] is on top, then it matches [2, 4] because 1 + 5 = 2 + 4, and it also matches [2, 2] because 5 – 1 = 2 x 2. The matching domino is placed on top of the previous top. If you can’t make a match, you must pick up a new domino from the pile.

How to win

The first player to get rid of all their dominoes wins.