
Solving the Puzzle
- Identify Operations:
- The equation is 11 – 11 × 11 + 11. Multiplication comes first according to BODMAS.
- Do Multiplication:
- 11 × 11 = 121. The equation becomes 11 – 121 + 11.
- Perform Subtraction:
- 11 – 121 = -110. Now the equation is -110 + 11.
- Complete Addition:
- -110 + 11 = -99.
Common Mistakes
People often solve from left – to – right, like:
11 – 11 = 0, 0 × 11 = 0, 0 + 11 = 11. This is wrong as it ignores BODMAS.