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Mathematics 7 Online
OpenStudy (anonymous):

Which operation should be performed first according to the order of operations? 21 – 5 + 24 ÷ 3 + 90 • 4 A. 21 – 5 B. 5 + 24 C. 24 ÷ 3 D. 90 • 4

OpenStudy (anonymous):

Do you know the saying PEMDAS?

OpenStudy (anonymous):

no

OpenStudy (anonymous):

well it goes like this, Parentheses, Exponets, Multiply, Divide, Add, and Subtract. You do everything in this order. If you don't have Parentheses or Exponets, go to multiplication.

OpenStudy (anonymous):

okay

OpenStudy (anonymous):

um that didn't really help

OpenStudy (anonymous):

Would you like me to give you the answer then?

OpenStudy (anonymous):

It would be letter D. Because of Pemdas. There are no P or E, Therefore you must multiply. If you would have P, you would do that first. But you don't so you go to the next letter. If exponets are not present, go to the next and so on.

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