P means ×, Q means ÷, R means −, and S means +. Using standard order of operations, what is the value of 46 R 12 P 3 S 18 Q 9?
Question and options
P means ×, Q means ÷, R means −, and S means +. Using standard order of operations, what is the value of 46 R 12 P 3 S 18 Q 9?
12
14
16
36.5
Answer and explanation
Correct answer: A - 12
Substitution gives 46 − 12 × 3 + 18 ÷ 9. Evaluate the multiplication and division first. The resulting expression is 46 − 36 + 2 = 12.
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