Lesson 1

Mai had $14.50. She spent $4.35 at the snack bar and $5.25 at the arcade. What is the exact amount of money Mai has left?

$9.60

$10.60

$4.90

$5.90

A large cheese pizza costs $7.50. Diego has $40 to spend on pizzas. How many large cheese pizzas can he afford? Explain or show your reasoning.

Tickets to a show cost $5.50 for adults and $4.25 for students. A family is purchasing 2 adult tickets and 3 student tickets.

1. Estimate the total cost.
2. What is the exact cost?
3. If the family pays $25, what is the exact amount of change they should receive?

Chicken costs $3.20 per pound, and beef costs $4.59 per pound. Answer each question and show your reasoning.

1. What is the exact cost of 3 pounds of chicken?

2. What is the exact cost of 3 pound of beef?

3. How much more does 3 pounds of beef cost than 3 pounds of chicken?

1. How many \(\frac15\)-liter glasses can Lin fill with a \(1 \frac12\)-liter bottle of water?
2. How many \(1 \frac12\)-liter bottles of water does it take to fill a 16-liter jug?

Let the side length of each small square on the grid represents 1 unit. Draw two different triangles, each with base \(5\frac12\) units and area \(19\frac14\) units².

Why does each of your triangles have area \(19\frac14 \text{ units}^2\)? Explain or show your reasoning.

Find each quotient.

1. \(\frac56 \div \frac16\)
2. \(1\frac16 \div \frac{1}{12}\)
3. \(\frac{10}{6 }\div \frac{1}{24}\)