Which two numbers should be interchanged to make the equation correct?
51 – 4 × 7 + 81 ÷ 3 = 70
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4, i.e., 51 and 81.
After interchanging numbers,
81 – 4 × 7 + (51 ÷ 3) = 70
81 - 28 + 17 = 70
98 - 28 = 70
70 = 70