Lesson 2

The Coat of Many Bits

Est. Class Sessions: 3

Daily Practice and Problems

Teacher Notes
X

TIMS Task

Use this DPP item to practice multiplication facts for the 9s.

  1. 3 × 10 = 30 and 30 − 3 = 27
  2. 7 × 10 = 70 and 70 − 7 = 63
  3. 81

F. Multiplication Strategies

Levi says that he finds 6 × 9 this way, “I think 6 tens are 60, so 6 nines will be 6 less.” 6 × 10 = 60 and 60 − 6 = 54.

  1. Use Levi's strategy to find 3 × 9.
  2. Use his strategy to find 7 × 9.
  3. Find 9 × 9.