Which two signs should be interchanged to make the equation mathematically correct?
54 + 18 ÷ 9 − 36 × 16 = 88
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. × and +.
Given equation: 54 + 18 ÷ 9 − 36 × 16 = 88
Option 1: × and +
After interchanging the expression becomes:
= 54 × 18 ÷ 9 − 36 + 16 = 88
= 54 × 2 − 36 + 16
= 108 − 36 + 16
= 88 = 88
As we have found our answer, there is no need to check further options.
Hence, × and + is the correct answer.