Lesson 1 — Whole numbers

In this first lesson on whole numbers, you will estimate and solve problems with whole numbers as well as decide when to use an operation when solving problems in everyday contexts.

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In this lesson, you will:

  • use estimation strategies for whole numbers (numbers without decimals)
  • round numbers to the nearest whole number
  • choose and then apply addition, subtraction, multiplication, or division operations to solve every day problems related to shopping

Key Terms for this lesson:

  • estimate
  • rounding