Which two signs need to be interchanged?
22 - 4 × 2 2 + 6 = 20
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. + and -.
Given equation: 22 – 4 × 2 ÷ 2 + 6 = 20
After interchange of ‘+’ and ‘–’;
= 22 + 4 × 2 ÷ 2 – 6 = 20
= 22 + 4 × 1 − 6 = 20
= 22 + 4 − 6 = 20
20 = 20