Which two signs should be interchanged to make the following equation correct?
6×2+8−16÷4=18
- A+ and ÷
- B+ and ×
- C× and ÷
- D– and ÷
Solution & Step-by-step Explanation
Let's check the options by interchanging the signs and evaluating the expression using the BODMAS rule:
Option B: Interchange + and ×
The equation becomes:
6+2×8−16÷4
Applying BODMAS:
Division: 16÷4=4
Multiplication: 2×8=16
Addition & Subtraction: 6+16−4=22−4=18
This perfectly matches the right-hand side (18). Therefore, interchanging + and × makes the equation correct.
Option B: Interchange + and ×
The equation becomes:
6+2×8−16÷4
Applying BODMAS:
Division: 16÷4=4
Multiplication: 2×8=16
Addition & Subtraction: 6+16−4=22−4=18
This perfectly matches the right-hand side (18). Therefore, interchanging + and × makes the equation correct.