Question

Identify the error in the problem what mistakes did they make what should they have done

Answer 1

107

Explanation:

90 ÷ 5(3 × 2) - 1

First we multiply the numbers in parentheses:

90 ÷ 5 × 6 - 1

Then the operations of multiplication and division are performed in order, so first you need to divide 90 by 5 and only then multiply the result by 6:

18 × 6 - 1

108 - 1

107