Question

7. In which step does a mistake first occur? 8÷2+ (3 x 3-2) Step 1: 8÷2 + (3 x 1) Step 2: 8÷2+3 Step 3: 4+3 Step 4: 7​

Answer 1

Answer: Step 1

A mistake first happens in Step #1. PEMDAS is not followed correctly.

(PEMDAS = parentheses, exponents, multiplication, division, addition, subtraction)

When solving 8÷2+(3x3-2), you first move left to write and solve the problems working through the correct order of operations.

Correct Steps:

1) 8÷2 + (3x3-2)

2) 4 + (9-2)

3) 4 + 7

4) 4+7 = 11