Question

Consider the expression 8 – 4 / 2. One student says the answer is 2 and another says it is 6. Which student is correct? Explain what went wrong with the student who made a mistake.

Answer 1

It is 6. The student who got a two did not use order of operations.

Explanation:

PEMDAS

You must do division before subtraction. 4/2 = 2.

8 - 2 = 6