Ch 24: The Number System

About This Chapter

Get reacquainted with the all aspects of the number system by reviewing entertaining video and text lessons. This chapter covers math topics that include scientific notation, decimal place value, Arabic numerals and types of numbers.

The Number System - Chapter Summary

This comprehensive overview of the number system is designed to help you discover or refresh your knowledge of numbers basics in math. Review the lessons to ensure you have a quality understanding of decimals, estimation, ways to find place values and much more. Once you've completed this chapter, you will have the knowledge to:

  • Define and share the history of Arabic numerals
  • Describe the decimal place value
  • Find place values in whole numbers
  • Explain the meaning of scientific notation
  • Discuss the concept of estimation in math
  • Solve math problems by estimating with decimals
  • Identify and describe different types of numbers

Watch fun videos and read engaging texts to learn all you need to know about the number system. Each lesson covers a different topic to make sure you're able to absorb pertinent details at a comfortable pace. Access lessons from any computer, smartphone or tablet whenever your schedule permits. When ready, assess your knowledge of the number system by taking short lesson quizzes and a practice chapter exam.

7 Lessons in Chapter 24: The Number System
Test your knowledge with a 30-question chapter practice test
Arabic Numerals: Definition, History & Example

1. Arabic Numerals: Definition, History & Example

In this lesson you will find a brief history of how the Arabic numeral system came to its present form. The system is defined and distinguished from all other numeral systems by its specific qualities.

What is a Decimal Place Value?

2. What is a Decimal Place Value?

In this video lesson, you will see how a decimal, a simple dot, can change the place value of all the digits in a number. You will also learn how to read decimals using place values.

Finding Place Values in Whole Numbers

3. Finding Place Values in Whole Numbers

After watching this video lesson, you will be able to find the location of any place value that you are given. You will also be able to identify them in any whole number.

Scientific Notation: Definition and Examples

4. Scientific Notation: Definition and Examples

Scientific notation is a special way of writing numbers so they are easier to work with. This lesson will define scientific notations and show some examples of how to convert numbers from standard notation to scientific notation and back.

How to Estimate in Math: Definition & Concept

5. How to Estimate in Math: Definition & Concept

Learn how to use estimate values in this lesson. It can help you answer math problems that use more complicated numbers and even make it easier to split a check at the restaurant next time you are out with friends!

How to Estimate with Decimals to Solve Math Problems

6. How to Estimate with Decimals to Solve Math Problems

Watch this video lesson to learn how you can estimate problems with decimals in them so you can get a quick answer when you need it - for example, when you are at the gas station and you need to know how much gas you can afford.

What are the Different Types of Numbers?

7. What are the Different Types of Numbers?

Learn all of the different types of numbers: natural numbers, whole numbers, integers, rational numbers, irrational numbers, and real numbers. This video lesson teaches you how to classify any numbers you come across.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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