Interested in employment in the energy industry?

Find out more about how to take your next steps.

Interested in employment in the energy industry?

Find out more about how to take your next steps.

Get Into Energy Test Prep Independent Study Program

Section 1: Addition and Subtraction of Whole Numbers

Adding or subtracting whole numbers of one or two digits:

Adding or subtracting whole numbers of three or four digits:

Online Instruction: https://www.khanacademy.org/math/arithmetic-home/addition-subtraction