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Adding & Subtracting with Scientific NotationDoing operations with numbers written in scientific notation

In this lesson you will learn how to perform operations with numbers written in scientific notation that include addition and subtraction.1Next Generation Standard

NxG.M.8.EE.4: perform operations with numbers expressed in scientific notation, including problems where both decimal and scientific notation are used. Use scientific notation and choose units of appropriate size for measurements of very large or very small quantities (e.g., use millimeters per year for seafloor spreading). Interpret scientific notation that has been generated by technology. (CCSS Math.8.EE.4)

The mathematical standard you will be focusing on states that you should be able to perform operations with numbers expressed in scientific notation, including problems where both decimal and scientific notation are used.2Defining Success 3 x 103 to

4 x 10-3 to

3 x 10-5 + 4 x 10-4 to3,000

0.004

4.3 x 10-4

In this lesson you will learn two methods that will allow you to find the sum or difference of numbers that are written in scientific notation.

3 Lets Get Started! You will soon be able to do calculations with numbers that are in scientific notation and determine the sum or difference.

After this lesson you will be able to perform addition and subtraction of numbers in scientific notation. You will perform calculations with numbers that have both positive and negative exponents. So lets get started!4