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

Respuesta :

C....you do multiplication and division first....but you work left to right and whichever you get to first you do.
D. 90 x 4 
Multiplication is always first
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