Grade 6 Mathematics · Unit 3: Ratios & RatesStandard 6.AT.2

Lesson 3.23.2 Small Group · Group 2

Group 2 · Set BSecond challenge form · new problems, same idea

Mastery check☐ Exceeds☐ Meets target☐ Needs practice
Name Date Period

Learning target I can find a unit rate to compare prices and decide the better buy, explain how I can tell, and judge a case I have not seen before.

Remember3.2 Small Group · Group 2

A unit rate gives the amount for 1, so we can compare deals fairly and find any other amount. A unit rate lets us work forward or backward, like finding how long a trip takes.

Words: Rates and Unit Rates (Tasas y tasas unitarias)Rate (Tasa)Unit Rate (Tasa unitaria)Per (Por)Ratio (Razón)

  1. 1Complete each step, then write the final answer.
    Games510Booth A cost$3.00?Booth B cost$5.00× ?× ?

    Booth A charges $3 for 5 games. Booth B charges $5 for 10 games. Which booth is the better buy?

    Show your work
    Final answer:
  2. 2Complete each step, then write the final answer.
    HoursMiles________________________

    A plane flies 1,500 miles in 3 hours. It keeps the same speed. How many hours does it take to fly 2,500 miles?

    Show your work
    Final answer:
  3. 3Complete each step, then write the final answer.
    MinutesGallons________________________

    A faucet fills 15 gallons in 6 minutes. How many minutes does it take to fill 40 gallons?

    Show your work
    Final answer:
  4. 4Complete each step, then write the final answer.
    Gallons76110Car A miles210??Car B miles192??÷ ?÷ ?× ?× ?

    Car A goes 210 miles on 7 gallons. Car B goes 192 miles on 6 gallons. On 10 gallons, how many more miles can Car B go than Car A?

    Show your work
    Final answer:

Explain your thinkingIs a lower total price always the better buy? Use a unit price to defend your answer.

How did it go? ☐ 4 · I can teach it☐ 3 · I've got it☐ 2 · I need a hint☐ 1 · I need help