Adding with regrouping

Topic Notes

In this lesson, we will learn:

  • How to use base ten materials to represent numbers
  • Writing numbers in expanded form

Notes:

  • Regrouping 

  • 10 ones can be regrouped into 1 ten:

    Representing Numbers: Tally Marks

    10 tens can be regrouped into 1 hundred:

    Representing Numbers: Tally Marks

    10 hundreds can be regrouped into 1 thousand

    Representing Numbers: Tally Marks