![]() ![]() ![]() Rule 2: Next perform all multiplications and divisions, working from left to right. Rule 1: First perform any calculations inside parentheses. Mathematicians have devised a standard order of operations for calculations involving more than one arithmetic operation. We need a set of rules in order to avoid this kind of confusion. When performing arithmetic operations there can be only one correct answer. Student 1 performed the operation of addition first, then multiplication whereas student 2 performed multiplication first, then addition. It seems that each student interpreted the problem differently, resulting in two different answers. Problem: Evaluate the following arithmetic expression:
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