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09-02-2018
Mathematics

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How can I use the numbers 7, 5, 6, and 3, only once each, to create an expression that equals 75 using parentheses?

Respuesta :

09-02-2018

Work backwards a bit
75 ends in 5, so 5 times what is 75
15•5=75
How can we make a 15 out of 7,6,3?

((3•7)-6)•5=75

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