Lesson 8

3-D to 2-D

Est. Class Sessions: 2

Daily Practice and Problems

Teacher Notes
X

TIMS Bit

  1. 27
  2. 63
  3. 90
  4. 0
  5. 45
  6. 72
  7. 54
  8. 9
  9. 81
  10. 18
  11. 36
  1. Possible response: I used a doubling strategy. I know 2 × 9 = 18, so 4 × 9 = 18 + 18, or 36.

Ongoing Assessment

Use DPP item CC to assess students' fluency with the multiplication facts for the 9s [E11].

See the Letter Home for targeted practice.

CC. Multiplication Quiz: 9s

  1. 3 × 9 =
  2. 9 × 7 =
  3. 10 × 9 =
  4. 0 × 9 =
  5. 5 × 9 =
  6. 9 × 8 =
  7. 6 × 9 =
  8. 1 × 9 =
  9. 9 × 9 =
  10. 9 × 2 =
  11. 9 × 4 =
  1. Show your strategy for solving 9 × 4.