Lesson 6

Moves on the 200 Chart

Est. Class Sessions: 2–3

Daily Practice and Problems

Teacher Notes
X
  1. 33 > 27
  2. 6
  3. 34 years old
  4. Possible response: 40 − 6 = 34

T. How Old

Use a number line or 200 Chart. Stephanie is twenty-seven years old and Kelsey is thirty-three years old.

  1. Write the age of each person to make the sentence true.


    ______________ > ______________
  2. Stephanie is _______________ years younger than Kelsey.
  3. When Kelsey is forty years old, how old will Stephanie be?
  4. How do you know?