Discussion
If "+" means "minus", "x" means "divided by", "÷" means "plus" and "-" means "multiplied by", then 81 x 9 + 10 - 6 ÷ 5 = ?
Answer: B
Correct answer: -46
Replacing the symbols gives \( 81 \div 9 - 10 \times 6 + 5 \), and by the usual order \[ 9 - 60 + 5 = \mathbf{-46} \]
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