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CPM Course 2 – Chapter 3

Arithmetic Properties

In this chapter, students simplify numeric expressions. The theme is arithmetic properties. During this chapter students:

  • Recognize that terms must be simplified separately and then combined, thus establishing a correct order of operations.
  • Use integer tiles to learn about integer addition and subtraction.
  • Divide with fractions, mixed numbers, and decimals with a focus on making sense of the operation of division, relying on diagrams, and reasoning before moving to an algorithms.

Homework help for this chapter is here

Homework help offers tips, strategies and sometimes solutions for every homework question in this chapter.


  • Parent Guide from CPM for this chapter is here
  • Khan academy videos on adding and subtracting integers are here