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Saturday 20 September 2014

Quiz 111


4 ? 4 ? 4 ? 4 = 7

Can you find a way to express the number 7 using four 4s and basic math operations (addition, subtraction, multiplication, and division)?



ANSWER:
 
               4 + 4 - 4 / 4
There's also 4 - (4 / 4 - 4) if you allow parenthesis.

EXPLANATION:
     
            Just a reminder that as per the order of operations in mathematics, the division operator is resolved before the addition and subtraction operators



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