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

Lesson 4.54.5 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 determine the whole when I know a part and the percent that part represents, explain why the method works, and use it on a problem I have not seen before.

Remember4.5 Small Group · Group 2

Put the part with the percent that matches it, then scale to 100%. The whole is bigger than the part only when the percent is less than 100%. Before you fill in the table, make sure the percent matches the part you know.

Words: Part (Parte)Whole (Total)Double number line (Recta numérica doble)Equation (Ecuación)Percent (Porcentaje)

  1. 1Complete each step, then write the final answer.
    Percent (%)Height (in)________________________

    A plant is 18 inches tall now. That is 150% of its height last month. How tall was the plant last month?

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

    42 is 35% of what number?

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

    In a survey, 168 students chose pizza. That was 56% of the students. How many students took the survey?

    Show your work
    Final answer:
  4. 4Complete each step, then write the final answer.
    Percent (%)Pay ($)________________________

    After a 20% raise, Ana earns $18 an hour. How much did she earn an hour before the raise?

    Show your work
    Final answer:

Explain your thinkingBefore you fill in the table, how do you choose the percent that matches the part you know? Use a sale price to explain.

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