Lesson 6

Solving Repeated Addition and Subtraction Problems

Est. Class Sessions: 2

Daily Practice and Problems

Teacher Notes
X

Students may use number lines, ten frames, or connecting cubes.

  1. 10
  2. 11
  3. 9
  4. 10
  5. 10
  6. 10
  7. 11
  8. 10
  9. 9
  10. 11
  11. 11
  1. Strategies will vary. Possible strategy: 2 + 8 = 10, so 3 + 8 is one more, or 11.

Ongoing Assessment

Use DPP item U to assess students' abilities to use math fact strategies to add (direct modeling, counting strategies, or reasoning from known facts) for the facts in Group C [E19].

U. Addition Facts 2

  1. 9
    + 1
  2. 4
    + 7
  3. 3 + 6 =
  4. = 2 + 8
  5. 3
    + 7
  6. 4
    + 6
  7. 2 + 9 =
  8. = 5 + 5
  9. 7
    + 2
  10. 3
    + 8
  11. 5 + 6 =
  1. Explain your strategy for Question J.