Answers

2014-08-15T13:52:37+08:00
Use PEMADAS 3*7=21 then then 12+3 =15 then - to 2 =13then add 21 =34 

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2014-08-15T19:19:40+08:00
Use PEMDAS (Parenthesis, Exponent, Multiplication or Division, Addition or Subtraction)
(12+3)-2+3*7= ?
15-2+3*7      = ?
15-2+(3*7)    = ?
15-2+21       = ?
(15-2)+21     = ?
13+21          = 34

34 is the answer..









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