2. Subset A set contained within another set is called a SUBSET! Set Subset

3. The Real Number System The Real Number System is separated into two parts: Rational Numbers A subset of the Real Number System where numbers either: –Terminate (end), –Repeat or –Can be written as a fraction Examples: 5.34, 45%, 0.131313..., 2/3, 9

4. The Real Number System Rational NumbersIrrational Numbers 5.34 45% 0.131313… 9 0.101101110…

5. The Real Number System Continued Integers: A subset of Rational Numbers that includes only positive and negative whole numbers. Examples: {…-3, -2, -1, 0, 1, 2, 3, …}

6. The Real Number System Rational NumbersIrrational Numbers Integers 5.34 45% 0.131313… 9 0.101101110… -212 -4 12 2 0

7. The Real Number System Continued Whole Numbers: A subset of Integers that includes only positive numbers and zero Examples: {0, 1, 2, 3, …}

8. The Real Number System Rational NumbersIrrational Numbers Integers Whole Numbers 5.34 45% 0.131313… 9 0.101101110… -212 -4 12 2 0

9. The Real Number System Continued Natural Numbers (Counting Numbers): A subset of Whole Numbers that includes only the ‘counting numbers’ starting at 1 Examples: {1, 2, 3, …}

10. The Real Number System Rational NumbersIrrational Numbers Integers Whole Numbers 5.34 45% 0.131313… Natural Numbers 9 0.101101110… -212 -4 12 2 0

12. Subset Set B is a subset of Set A. Every item in Set B is also part of Set A. Examples: A: Solar System B: Planets Every planet is in the solar system, but not everything in the solar system is a planet. Set A Set B

13. Distinct Sets Sets A and B have no elements in common. Examples: A: WMS Teachers B: WMS Students There are no WMS Teachers who are WMS students and vice versa. Remember: We are talking about things in the sets, not characteristics of the sets. Set A Set B

14. Which Venn Diagram matches? Set 1: TV Star Set 2: Movie Star. B. C.C. A.A. D.D.

15. Which Venn Diagram matches? Set 1: Mammals Set 2: Reptiles. B. C.C. A.A. D.D.

16. Which Venn Diagram matches? Set 1: Mammals Set 2: Bears. B. C.C. A.A. D.D.

17. Which Venn Diagram matches? Set 1: Pop Set 2: Beverages. B. C.C. A.A. D.D.

18. Which Venn Diagram matches? Set 1: Jazz Set 2: Music. B. C.C. A.A. D.D.

19. Which Venn Diagram matches? Set 1: Bears Set 2: Mice. B. C.C. A.A. D.D.

20. Which Venn Diagram matches? Set 1: Fish Set 2: Guppies. B. C.C. A.A. D.D.

21. Which Venn Diagram matches? Set 1: Huskies Set 2: Dogs. B. C.C. A.A. D.D.