Lesson 7

Strategies for Adding and Subtracting Decimals

Est. Class Sessions: 3

Daily Practice and Problems

Teacher Notes
X

TIMS Task

Use Task T to practice the multiplication and division facts.

  1. 5
  2. 6
  3. 2
  4. 6
  5. 4
  6. 1
  7. 100
  8. 80
  9. 7
  10. 1

T. Order of Operations

Find the value of n to make each number sentence true.

  1. (4 × n) + 80 = 100
  2. 18 ÷ n × 7 = 21
  3. (800 + 600) ÷ n = 700
  4. 800 − (600 ÷ n) = 700
  5. (130 + 150) ÷ n = 70
  6. 600 × (5 × n) = 3000
  7. 400 + 2 × n = 600
  8. 60 × n + 1200 = 6000
  9. 60 + 80 × n = 620
  10. (600 × 5) × n = 3000