Sarah worked the following problem incorrectly.

Part 1) In which line was the mistake made?
Part 2) Show your work and give the correct answer?
Line 1 40 ÷ 5(3 − 1) − 4
Line 2 40 ÷ 5(2) − 4
Line 3 40 ÷ 10 − 4
Line 4 4 − 4
Line 5 0

Question

Sarah worked the following problem incorrectly. 

Part 1) In which line was the mistake made? 
 Part 2) Show your work and give the correct answer? 
Line 1	40 ÷ 5(3 − 1) − 4
Line 2	40 ÷ 5(2) − 4
Line 3	40 ÷ 10 − 4
Line 4	4 − 4
Line 5	0

anonymous · Answer

lin 3 PEMDAS...note that MD is done in order from left to right

anonymous · Answer

In line 3 she didnt follow the order of operations ,she should hav subtracted 4 from 10 then she should have divided 40 by 6