Question

Wapi simplified an expression. His work is shown below

7(8.5-1.5)+ 8÷ 2
step 1 7(7) + 8 ÷ 2
step 2 49 + 8 ÷ 2
step 3 57 +2
step 4 28.5

In which step did Wapi make his first mistake?
➪ Step 1
➪ Step 2
➪ Step 3
➪ Step 4​

Answer 1

Step 3

Step-by-step explanation:

I got it right on edge, hope it helps :]

Answer 2

Step 3: in step 3 he needed to do 8 divided by 2 first because of order of operations, also he changed the division sign into an addition sign.