Lesson 2

Subtraction Seminar

Est. Class Sessions: 2–3

Daily Practice and Problems

Teacher Notes
X
  1. 61

  2. 79

  3. 100

  4. Possible response: I thought of the number line and started on 48 and added 2 to reach 50, then added 50 more to reach 100.

G. Addition Strategies

Use the Addition Strategies Menu in the Student Activity Book Reference section.

  1. 37 + 24
  2. 43 + 36
  3. 52 + 48
  4. Show or tell how to solve Question C with a number line or 200 Chart.