N2C7p36

Problem 36:

Melissa worked the following problem incorrectly.  Explain to Melissa where she made her mistake and how you would work the problem correctly.

            Melissa’s Problem                 

Problem:         5 + 2 x (3+4)              

Step 1:             7 x (3 + 4)                   

Step 2:             7 x 7               

Wrong Answer:           49