Compute four 9s to equal 10

Discussion in 'General Discussion' started by NOBama, Dec 30, 2008.

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NOBamaSenior Member

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Using any combination of mathematical operators.

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JonThe CPA

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(99-9)/9 = 10

also

99/9.9 = 10

• Thank You! x 1
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NOBamaSenior Member

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Nope...

99 is not 9

9.9 is not 9

Nice try though

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editecMr. Forgot-it-All

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((9x9) + 9)/ 9 =10

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JonThe CPA

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This is an old trick that my math teachers used to do in high school. 99 and 9.9 were acceptable because of the wording of the question. I knew the answer you wanted, but it was more fun to mix up the problem because of the ambiguity.

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