2.4 Addition and Subtraction on the Number Line

Unit Goals

  • Students learn about the structure of a number line and use it to represent numbers within 100. They also relate addition and subtraction to length and represent the operations on the number line.

Section A Goals

  • Represent whole numbers within 100 as lengths from 0 on a number line.
  • Understand the structure of the number line.

Section B Goals

  • Represent sums and differences on a number line.
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