Question

Which expression is a DIFFERENCE? A) (6 - 4) x 5 B) 6 - (4 x 5) C) 8 + (5 - 2) D) (6 - 4)(3 - 1)

Answer 1

Answer: B

Step-by-step explanation: Following the right order of solving problems using PEDMAS, a problem that counts as difference should have subtraction as the last and final step in it. While other options have subtraction to be hashed out at the parentheses level, they were not the last and final subtraction to be done instead they had multiplication and addition as their final steps. Only option be has subtraction as its final step so that the only expression counting as a difference.

Answer 2

B

Explanation:

A difference is the result of subtraction. While each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. This means subtraction must be outside of the parenthesis. Only B has this.