N3A3p19

Problem 19:

Sue and Sid are discussing how to solve the following problem:

      “Allen wants to know how many quarters he can save in 12 weeks if he saves 8 quarters per week.”

Sue says that Allen can just do 12 ´ 8 to find out. Sid says Allen can add 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8 + 8.

Who is right? Explain your answer.