Grade 6 Mathematics · Unit 6: Numerical and Algebraic ExpressionsStandard 6.AT.6c

Lesson 6.46.4 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 write numerical expressions from a real situation and evaluate them using the order of operations, including powers, explain what each part stands for, and build one for a situation I have not seen before.

Remember6.4 Small Group · Group 2

Parentheses come first, then powers, then multiply and divide, then add and subtract, so where you put parentheses can change the value. Grouping symbols change the order of operations. Use parentheses to show which part to find first.

Words: Numerical expression (Expresión numérica)Evaluate (Evaluar)Order of operations (Orden de las operaciones)Power (Potencia)Base (Base)

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

    Three friends buy 2 games at $10 each and 1 game that costs 2⁴ dollars. They split the cost equally. How many dollars does each friend pay?

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

    Evaluate (18 − 2³) × 3 + 4².

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

    A phone plan costs $30 a month, plus $2 for each GB used over 2³ GB. Tom uses 12 GB. Write and evaluate an expression for his bill.

    Show your work
    Final answer:
  4. 4Circle the letter of the best answer. Show how you know.

    Put one set of parentheses in 36 ÷ 3² + 3 × 2 so the value is 14. Which placement works?

    1. A(36 ÷ 3² + 3) × 2
    2. B36 ÷ (3² + 3) × 2
    3. C36 ÷ 3² + (3 × 2)
    4. D(36 ÷ 3)² + 3 × 2
    336

Explain your thinkingThe pizza share was 9 with parentheses and 33 without. When do parentheses change the value of an expression?

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