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Mathematics 21 Online
OpenStudy (anonymous):

Simplify. Please be sure to show all of your work. -9[12-8(-3)*(-5)+1]

OpenStudy (amistre64):

this is spose to train you to recognise the order of operations ... which is an important skill you need to develop

OpenStudy (anonymous):

aka BODMAS. PEDMAS where B, P stands for Brackets, Parentheses and u can look up the rest.

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