Students learn to solve addition and subtraction problems involving standard form.

As learning progresses, students consider the negative powers of ten and positive.

**Differentiated Learning Objectives**

- All students should be able to use the column method to add numbers written in the form A x 10
^{n}where n is greater than 1. - Most students should be able to use the column method to add numbers written in the form A x 10
^{n}where n is an integer. - Some students should be able to use non-calculator methods to solve addition and subtraction problems involving standard form.