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Overview

This chapter extends the number line to include the opposites of the natural numbers. A review of numbers and sets is followed by a discussion of opposites and absolute values. The main emphasis of the chapter is a presentation of the four basic operations applied to the set of integers. The chapter culminates by revisiting the order of operations as they are applied to the set of integers.

What you can expect to learn

After completing Chapter 2 you should be able to

  1. Analyze the subsets within the set of integers.
  2. Model absolute value, number comparisons, and integer operations on a number line.
  3. Solve mathematical and real-world problems involving integers.
  4. Critique the idea that mathematics determines truth.
Activity List