Avoid using a calculator and exercise your brain instead.

2. Add from left to right

• 50 + 0 = 50
• 50 + 7 = 57
• 57 + 2 = 59

The final answer: 59

Common Mistakes

If you got  9 , you probably performed  the operations out of order , calculating addition before multiplication. This  violates the BODMAS method , which always prioritizes multiplication.