Question

If '+' means '-', '×' means '+', '-' means '÷', and '÷' means '×', then what is the value of the expression ' 100 - 10 + 30 × 5 ÷ 2 × 10' ?

B 5 Correct Answer Incorrect Answer
C 9 Correct Answer Incorrect Answer
D 1 Correct Answer Incorrect Answer

Solution

' 100 - 10 + 30 × 5 ÷ 2 × 10' 100 ÷ 10 - 30 + 5 × 2 + 10 = 10 - 30 + 10 + 10 = 0

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