Grade 6 Mathematics · Unit 8: Equations & InequalitiesStandard 6.AT.8

Lesson 8.78.7 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 model and solve real-world problems using equations and inequalities, explain what each part stands for, and build one for a situation I have not seen before.

Remember8.7 Small Group · Group 2

Choose an equation or an inequality from the words, solve it, and then check the answer in the story, rounding to whole items when needed. After you solve, check the answer in the story. Sometimes you must round to a whole number.

Words: Model (Modelar)Equation (Ecuación)Inequality (Desigualdad)Reasonableness (Razonabilidad)Variable (Variable)

  1. 1Complete each step, then write the final answer.

    Tickets cost $6 each. Ana has $40. What is the greatest number of tickets she can buy?

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

    A box holds 24 cans. A store has 270 cans to pack. Write and solve an inequality. How many boxes are needed?

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

    A water tank holds at most 120 liters. It has 47.5 liters now. Write and solve a model. How many more liters can you add at most?

    Show your work
    Final answer:
  4. 4Complete each step, then write the final answer.

    A gym charges $20 to join, plus $15 each month. Sam can spend at most $140. Write and solve an inequality. How many months can he pay for?

    Show your work
    Final answer:

Explain your thinkingWhen do you round up and when do you round down after you solve an inequality? Use the buses and the tickets.

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