Cost Calculations for Cookies and Brushes

The video tutorial covers two main math problems. First, it discusses the cost of brush sets, including a discount, and calculates how many sets Mary can buy with $50, determining the change she receives. The second problem involves buying cookies with $20, using multiplication to find the number of cookies and calculating the change. The tutorial emphasizes estimation and mental math techniques for solving these problems.

What is the original price of a set of brushes before any discount?

• $12.95

• $11.95

• $13.95

• $14.95

How much discount is offered on the brushes?

• $2

• $3

• $5

• $4

What is the discounted price of one set of brushes?

• $12.95

• $10.95

• $11.95

• $13.95

How many sets of brushes can Mary buy with $50?

• 6

• 5

• 4

• 3

If Mary had $25, how many sets of brushes could she buy at the discounted price?

• 2

• 4

• 3

• 1

If the discount on brushes was $4, what would be the new price?

• $13.95

• $12.95

• $11.95

• $10.95

If Mary had $60, how many sets of brushes could she buy at the discounted price?

• 4

• 5

• 7

• 6

What is the estimated total cost for four sets of brushes?

• $47.80

• $48.00

• $50.00

• $49.00

What is the exact total cost for four sets of brushes?

• $47.60

• $48.20

• $47.80

• $48.00

How much change does Mary get back from $50 after buying the brushes?

• $2.20

• $2.00

• $1.20

• $2.50