
Jason T. answered 04/16/13
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Jason Tutors Math & Physics
Follow the order of operations.
Parentheses? none.
Exponents? none.
Multiplication and Division? Do them left to right: 15÷5 = 3, 3×13 = 39
Addition and Subtraction? Do them left to right: 9 + 39 = 48
Answer is 48.

Chris S.
Memorize the acronym PEDMAS in order to remember this order of operations
1. Parentheses, 2. Exponents, 3. Division and Multiplication, 4. Addition and Subtraction
04/16/13