<PRE><B>Question 192570</B>
without order of operation answers would be all over the map. One wouldnt know which operation to perform 1st, inbetween and , lastly.
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take this problem for instance:{{{3*5-2^2+7}}}
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if we just perform the operations as we come to them we would get:
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{{{15-2^2+7=13^2+7=169+7=176}}}
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but if done in proper order the exponent would be done first followed by multiplcation and lastly(addition and subtraction)all left to right
:
{{{3*5-4+7=15-4+7=18}}}</PRE>