Lesson 11

Workshop: Multiply and Divide Fractions

Est. Class Sessions: 1–2

Daily Practice and Problems

Teacher Notes
X

TIMS Task

  1. 222.3
  2. 718 23
  3. 1712
  4. 156
  5. 1324
  6. 17
  7. 454.56
  8. 1,122.13
  9. 204
  10. 112
  11. 415
  12. 5215
  13. I know that 40 × 4 = 160. Since 156 is close to 160, I know my answer is reasonable.

NN. Use Strategies to Compute

Choose a strategy to solve each problem. Write remainders in division problems as a fraction. Write all fractions in simplest form. Use any pages in the Student Guide Reference section.

  1. 57 × 3.9 =
  2. 4312 ÷ 6 =
  3. 34 + 56 =
  4. 39 × 4 =
  5. 1112 − 38 =
  6. 68 × 14 =
  7. 376.2 ÷ 78.36 =
  8. 1205.4 − 83.27 =
  9. 1836 ÷ 9 =
  10. 18 × 23 =
  11. 12 × 815 =
  12. 345 + 113 =
  1. Explain how you can use mental math to show that your answer to Question D is reasonable.