The steps to solving the expression the quantity of the sum of eight squared plus two divided by the absolute value of negative 0.5 end quantity minus 12.4 ÷ 4 are listed below.

Part A: Explain what the missing expression should be in Step 2. (6 points)

Part B: Explain what the missing expression should be in Step 6. (6 points)


Step 1 the quantity of the sum of eight squared plus two divided by the absolute value of negative 0.5 end quantity minus 12.4 ÷ 4
Step 2
Step 3 the quantity of the sum of sixty four plus two divided by 0.5 end quantity minus 12.4 ÷ 4
Step 4 the quantity sixty six divided by 0.5 end quantity minus 12.4 ÷ 4
Step 5 132 − 12.4 ÷ 4
Step 6
Step 7 128.9