2. Lesson 7 The real number system
Chapter 1 Real Numbers
Lesson 7 The real number system

3. Vocabulary Natural numbers Whole numbers Integers Rational numbers
Irrational numbers
Real numbers

4. The Real Number System

5. The Real Number System

6. The Real Number System
4 1 5 −

7. Example 2 – Sometimes/Always/Never
Rational numbers are integers. Irrational numbers are real numbers. Real numbers are irrational numbers. Integers are real numbers. Integers are irrational numbers.

8. −𝟔
𝟐 𝟑 𝟑 𝟗

9. − 𝟐𝟓
−𝟏𝟐
−𝟖.𝟐 𝟏𝟔

10. 𝟐 𝟏 𝟒𝟖 𝟑𝟓

11. The Real Number System I can classify real numbers.
I can describe sets of real numbers.

12. ` Give an example of each of the following: A whole number
An integer that is not a whole number
A rational number that is not an integer
An irrational number

13. The Real Number System
An irrational number is a number that cannot be expressed as the ratio of two integers. Two common examples of irrational numbers are and  2 .
The set of rational numbers together with the set of irrational numbers make up the set of real numbers.