Lesson 6

Mapping Rain Forest Trails

Est. Class Sessions: 3

Daily Practice and Problems

Teacher Notes
X

Have 200 Charts readily available.

  1. No
  2. Yes
  3. No
  4. 75; I thought about money. $1.25 − 50¢ = 75¢, so 123 − 58 would be closer to 75.

Q. Number Sense

Answer Questions 1–4 without finding the exact answer.
123 − 58 =

  1. Is the answer less than 50?
  2. Is the answer between 50 and 100?
  3. Is the answer more than 100?
  4. Is the answer closer to 75 or 100? Show or tell how you know.