Lesson 5

Buildings and Problems

Est. Class Sessions: 2

Daily Practice and Problems

Teacher Notes
X

Have 200 Charts, desk number lines, and base-ten pieces readily available.

  1. 70; 58 + 10 = 68 and 68 + 2 = 70.
    8 + 2 = 10, 50 + 10 = 60 and 60 + 10 = 70.
  2. 130; 40 + 80 = 120, 4 + 6 = 10, and 120 + 10 = 130.
    86 + 4 = 90, 90 + 40 = 130.

O. Start By

Solve the problems in two ways. Circle the way you liked best. Use the Addition Strategies Menu in the Student Activity Book Reference section.

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