Explore Earth · Mountain Railway

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Place Value and Rounding

Tens and Ones

5 skills · Lessons coming soon

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  1. Count with base-10 blocks

    Coming soon

  2. Numbers as tens and ones

    Coming soon

  3. Identify and combine tens and ones

    Coming soon

  4. Add tens and ones

    Coming soon

  5. Regroup with base-10 blocks

    Coming soon

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