Question

Insert parentheses where needed so that the result of the expression is 2.
45-25 ÷2x2+2

Answer 1

(45 - 25) / 2 × (2 + 3)

Explanation:

Given:

45 - 25/2 × 2 + 3

By trials:

(45 - 25) / (2 × 2) + 3

= 20/4 + 3

= 20/7

Another trial:

(45 - 25)/2 × (2 + 3)

= 20/2 × 5

= 20/10

= 2

The parentheses should be inserted like this

(45 - 25) / 2 × (2 + 3)