Lesson 10

Divide Fractions

Est. Class Sessions: 2–3

Daily Practice and Problems

Teacher Notes
X

TIMS Task

    1. 5
    2. 42
    3. 4
    4. 4
    5. 64
    6. 8
    7. 7
    8. 4
    1. 500
    2. 8
    3. 600
    4. 9
    5. 600
    6. 400
    7. 900
    8. 50
    1. 29
    2. 360
    3. 50
    4. 73
    1. First I multiplied 7 × 7 = 49, then I multiplied 8 × 3 = 24. Finally, I added 49 + 24 = 73.

LL. Use Your Head

Use mental math strategies to solve each problem.

  1. Find number N that makes each sentence true.
    1. 30 ÷ N = 6
    2. N ÷ 6 = 7
    3. 24 ÷ 6 = N
    4. 36 ÷ N = 9
    5. N ÷ 8 = 8
    6. 16 ÷ N = 2
    7. 21 ÷ 3 = N
    8. 32 ÷ N = 8
  2. Solve.
    1. 40,000 ÷ 80 =
    2. 720 ÷ 90 =
    3. 3600 ÷ 6 =
    4. 270 ÷ 30 =
    5. 48,000 ÷ 80 =
    6. 2000 ÷ 5 =
    7. 81,000 ÷ 90 =
    8. 3500 ÷ 70 =
  3. Follow the order of operations to solve each of the following.
    1. 5 × 3 + 14 =
    2. (33 + 7) × 9 =
    3. 45 + 45 ÷ 9 =
    4. 72 + 8 × 3 =
    1. Explain how you solved Question D.