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Debasis

A Nine Puzzle

Question

Use three 9's and arrange them using the mathematical signs to form the number one.

There is a subtraction sign.

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10 answers to this question

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9/9

9

did you mean (9/9)^9 if it is then it is correct...There are many possible combinations...i wanted the one with subtraction sign...

Edited by Debasis
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BMAD, I purposely did not include any solution like yours, because the OP in post # 1 and post # 5

stated that he/she wanted a subtraction sign used among the mathematical signs.

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