Lesson 2

Getting to Know Room 204 a Little Better

Est. Class Sessions: 2

Daily Practice and Problems

Teacher Notes
X

TIMS Task

Encourage students to share their strategies. Some students might use paper and pencil to solve the problems while other students solve them in their heads using strategies such as using tens, making tens, or reasoning from known facts.

  1. 110
  2. 130
  3. 130
  4. 150
  5. 220
  6. Possible response: I split 130 so I could add easier.
    130 = 120 + 10.
    120 + 10 + 90 = 120 + 100 = 220.

H. More Addition Practice

  1. 70 + 40 =
  2. 60 + 50 + 20 =
  3. 80 + 50 =
  4. 60 + 90 =
  5. 130 + 90 =
  1. Show or tell how you solved Question E.