Sally and her friends want to buy 8 cheeseburger meals with $80, where each meal costs $9. By rounding the cost to $10, they determine they have enough money. The exact cost is $72, leaving them with $8. They use this to buy 4 milkshakes at $2 each. The lesson teaches solving multi-step word problems using rounding and basic arithmetic operations.

How much money do Sally and her friends have to spend on cheeseburger meals?

• $90

• $80

• $100

• $70

What is the rounded cost of each cheeseburger meal used for simplification?

• $10

• $9

• $11

• $8

What is the exact total cost of the 8 cheeseburger meals?

• $80

• $88

• $72

• $64

How much money is left after buying the meals?

• $6

• $9

• $7

• $8

How many milkshakes can Sally and her friends buy with the remaining money?

• 4

• 2

• 5

• 3