Medium
If "+" means "×", "−" means "÷", "×" means "−" and "÷" means "+", then find the value of: 12 + 3 − 4 × 2 ÷ 1
Explanation
Explanation
Step 1: Replace each symbol with its real meaning: 12 + 3 − 4 × 2 ÷ 1 becomes 12 × 3 ÷ 4 − 2 + 1.
Step 2: Apply BODMAS (division and multiplication first, from left to right): 12 × 3 = 36, then 36 ÷ 4 = 9.
Step 3: Now the expression is 9 − 2 + 1.
Step 4: 9 − 2 = 7, then 7 + 1 = 8.
Answer: 8.
PRO TIP
Re-check your working by substituting the answer back into the original question.