HIGHLINE SCHOOL DISTRICT MATH OLYMPIAD March 21, 1998

The Peanuts Problem

Robin ate some peanuts on Sunday. On Monday she ate 2 more peanuts than on Sunday. On Tuesday, Wednesday, Thursday, Friday, and Saturday she ate 2 more peanuts than the day before. By Saturday night she had eaten 77 peanuts in the whole week. How many peanuts did Robin eat on Wednesday?

We will be evaluating:

YOUR UNDERSTANDING: What did you notice about patterns?

YOUR STRATEGY: What was your approach? Did you make mistakes?

YOUR COMMUNICATION: Did you show us your work? Did you include all the steps in order? Did you use words, pictures, or tables?

REASONABLE RESULT: Did you check your answer? Does it seem reasonable? Can you get the same answer using a different strategy?