Substituting Numbers for Letters

Prepare a Presentation

Work Time

Prepare a Presentation

  • Explain how you wrote your two different expressions for one of your trains.
  • Describe your methods for finding the simplest form of the expression for the train you chose to present.

Challenge Problem

  • Compare the expressions 5a + 0d and 5a. Are they equivalent? Justify your thinking.
  • Compare the expressions 5ad and 5a. Are they equivalent? Justify your thinking.