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18 August, 16:14

What is the value of 1-18+25 if you subtract then add? If you add then subtract? Why is the order of operations necessary?

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  1. 18 August, 19:57
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    In this problem it just goes left to right, 1-18+25 = - 17+25 = 8

    (1-18) + 25-17+25=8

    When you do addition and subtraction they are reversible so you just go left to right
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