Strategy Videos
1. Addition Place Value Model with Regrouping using discs (27+15)
https://youtu.be/0m58UdJotKA
2. Vertical or Stacked Addition Model with Regrouping (114+28)
https://youtu.be/uyIUyq1SICk
3. Subtraction Place Value Model with Regrouping using discs (61-27)
https://youtu.be/nW5tbut5HN0
4. Subtraction Place Value Model with Regrouping using Illustrations (75-38)
https://youtu.be/iLQQkDFvT7M
5. Vertical or Stacked Subtraction Model with Regrouping (141-27)
https://youtu.be/Go0ibBSuiUc