Day 12: 2D Add a 3-Digit Number and a 2-Digit Number with Renaming in the Ones (3)

Focus Question: How do you decide if renaming is necessary when adding a 3-digit and a 2-digit number?

Materials from Teacher's Guide:

  • base ten set
  • Place Value Chart (TR02)
  • Grid Paper (TR11)

Materials from Home Instructor's Guide:

  • base ten set
  • 2 copies Place Value Chart 2 (TR03)
  • Number Cards (TR04)


There are no videos for this lesson. Instead use the videos from the previous lessons to show how to add in each place.

It's time to show what you know. Complete the Practice On Your Own in your Student Book.

When you are ready, you can complete the quiz below to check your answers!


Is your student ready for more practice? Use these options for practice:

Struggling- Reteach available on EduHub

On-Level- Additional Practice in the Additional Practice Workbook

Exceeding- Extension available on EduHub


Complete and Continue