Strategy Videos
1. Addition Place Value Model with Regrouping using discs (27+15)
2. Vertical or Stacked Addition Model with Regrouping (114+28)
3. Subtraction Place Value Model with Regrouping using discs (61-27)
4. Subtraction Place Value Model with Regrouping using Illustrations (75-38)
5. Vertical or Stacked Subtraction Model with Regrouping (141-27)