**Adding Whole Numbers and Applications**

- Add whole numbers without regrouping.
- Add whole numbers with regrouping.
- Find the perimeter of a polygon.
- Solve application problems using addition.

**Subtracting Whole Numbers and Applications**

- Subtract whole numbers without regrouping.
- Subtract whole numbers with regrouping.
- Solve application problems using subtraction.

**Estimation**

- Use rounding to estimate sums and differences.
- Use rounding to estimate the solutions for application problems.

Last modified: Wednesday, March 9, 2011, 7:01 PM