Lesson 6

Write and Solve Problems

Est. Class Sessions: 2

Daily Practice and Problems

Teacher Notes
X

Remind students to use only two-digit numbers. Discuss various solution strategies. Have number lines and 200 Charts readily available.

Responses will vary. Possible solutions are given.

  1. 43 + 36; 25 + 54
  2. 99 − 20; 94 − 15, 89 − 10
  3. 26 + 43 + 10; 34 + 22 + 23
  4. 87 − 32 + 24; 41 + 57 − 19
  5. Responses will vary.

V. Target Number 79

Use your desk number line or 200 Chart.

Write number sentences to make 79 with two-digit numbers by:

  1. adding two numbers._____________________________
  2. subtracting two numbers._____________________________
  3. adding three numbers._____________________________
  4. adding and subtracting._____________________________
  5. Which way of making 79
    was the easiest? Use that
    way to make 79 again with
    new numbers._____________________________