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Understand three-digit place value by counting, grouping, and using base ten blocks (2.NBT.A.1)

Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones: 100 is a bundle of ten tens, and numbers such as 300, 500, and 900 are bundles of hundreds.


  • Count objects in groups of ten

    In this lesson, you will learn how to identify place value by counting objects in groups of ten.

  • Model and write numbers using base ten blocks

    In this lesson you will learn how to model and write numbers by using base-ten blocks and place value chart.