Grade 6 Mathematics · Unit 4: Understand and Use PercentagesStandard 6.AT.4

Lesson 4.34.3 Small Group · Group 2

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

Mastery check☐ Exceeds☐ Meets target☐ Needs practice
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Learning target I can estimate the percent of a number using benchmark percents, rounding, and compatible numbers, explain why the method works, and use it on a problem I have not seen before.

Remember4.3 Small Group · Group 2

Benchmark percents can be combined, and the way you round tells you if your estimate is high or low. You can combine benchmark percents to estimate, and you can tell if your estimate is high or low.

Words: estimate (estimación)benchmark percent (porcentaje de referencia)compatible numbers (números compatibles)double number line (recta numérica doble)the whole (el todo)

  1. 1Complete each step, then write the final answer.
    Percent (%)Price ($)________________

    A coat costs $61. Today it is 48% off. Estimate the discount in dollars.

    Show your work
    Final answer:
  2. 2Complete each step, then write the final answer.
    Percent (%)Number________________________

    Estimate 73% of 812. Use benchmark percents.

    Show your work
    Final answer:
  3. 3Complete each step, then write the final answer.
    Percent (%)Trip (miles)________________

    A road trip is 386 miles long. You have driven 52% of the trip. About how many miles have you driven?

    Show your work
    Final answer:
  4. 4Complete each step, then write the final answer.
    GallonsPercent (%)________________

    A tank holds 38 gallons. It has 9 gallons in it. Use compatible numbers to estimate what percent full the tank is.

    Show your work
    Final answer:

Explain your thinkingTwo friends estimate 26% of 395. One uses 25% of 400. One uses 30% of 400. Which estimate is closer? How do you choose a benchmark?

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