# Comparing Numbers Written in Scientific Notation Rating

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The authors Chris S.

## Basics on the topicComparing Numbers Written in Scientific Notation

After this lesson you will be able to compare numbers written in scientific notation, using magnitude, decimals, and the laws of exponents.

The lesson begins with a method for dividing out a common factor, in order to make a comparison between numbers written in scientific notation. It leads to a second method, which uses magnitude and exponents to make a comparison.

Learn how to compare numbers in scientific notation by helping Chad plan his interplanetary vacation!

This video includes key concepts, notation, and vocabulary such as: scientific notation (a mathematical expression which represents very large or very small numbers, by multiplying a decimal by a power of ten); the property of inequality (when two numbers in scientific notation have the same exponent, compare the decimals to find which is greater); and magnitude (the approximate size of a number, often written as a power of ten).

Before watching this video, you should already be familiar with scientific notation and basic arithmetic with numbers written in scientific notation.

After watching this video, you will be prepared to use scientific notation to solve higher-level mathematical problems.

Common Core Standard(s) in focus: 8.EE.A.4 A video intended for math students in the 8th grade Recommended for students who are 13-14 years old