Answers

2014-06-23T11:39:20+08:00
PEMDAS
P
arenthesis
Exponents
Multiplication & Division
Addition & Subtraction

47-4\times5\div4+8\\47-20\div4+8\\47-5+8\\42+8\\\boxed{50}

0
2014-06-23T18:18:04+08:00