Let’s Go Shopping Worksheet Answer Key/Grading Rubric

Mary and Cindy are at the store shopping for scooters. The deluxe model costs $139.95, and the basic model costs $79.95. The girls plan on combining their money to buy two scooters. Mary has $120.00 and Cindy has $70.00. The store is offering different discounts for early shoppers.

Between 8 a.m. and 9 a.m., 20% off Between 9 a.m. and 10 a.m., 15% off Between 10 a.m. and 12 p.m., 10% off

Using estimation, determine what combination of scooters could be purchased with and without the discount. Based on the amount of money Mary and Cindy have, which scooters can they purchase, and at what time would they save the most amount of money? Complete the table below to support your choices.

Scooter Amount Price Amount Time of day combinations of after saved and prices discount discount

2 basic 20% (1 pt) 127.92 31.98 (4 pts) (4 pts)

2 deluxe 20% (1 pt) 223.92 55.98 8 am-9 am (4 pts) (4 pts) 1 basic & 1 20% (1 pt) 175.92 43.98 deluxe (4 pts) (4 pts)

2 basic 15% (1 pt) 135.96 23.94 (4 pts) (4 pts)

2 deluxe 15% (1 pt) 237.92 41.98 9 am-10 am (4 pts) (4 pts) 1 basic & 1 15% (1 pt) 186.92 32.98 deluxe (4 pts) (4 pts)

2 basic 10% (1 pt) 143.91 15.99 (4 pts) (4 pts)

2 deluxe 10% (1 pt) 251.91 27.99 10 am-12 pm (4 pts) (4 pts) 1 basic & 1 10% (1 pt) 197.91 21.99 deluxe (4 pts) (4 pts) Which scooters can they purchase, and at what time would they save the most amount of money?

They could purchase 2 basic or 1 basic and 1 deluxe scooter. (10 pts) They would save the most money between 8am – 9am. (9pts)