Correct the following equation by interchanging the two signs:
4 × 2 + 6 ÷ 2 - 12 = 2
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → ÷ and ×
Each option is tried by interchanging the two signs and working out the left side by BODMAS (division and multiplication before addition and subtraction). The left side must come to 2.
Option (1) ÷ and × — \(4\div2+6\times2-12=2+12-12=2\). Correct.
Option (2) + and − — \(4\times2-6\div2+12=8-3+12=17\). Incorrect.
Option (3) × and + — \(4+2\times6\div2-12=4+6-12=-2\). Incorrect.
Option (4) ÷ and − — \(\displaystyle 4\times2+6-2\div12=14-\frac{1}{6}=13\frac{5}{6}\). Incorrect.