1. 1C-1D, 1F Number Sets 7A-7C Sets and Interval Notation
Unit 7: Logic and Sets
1C, 1D, 1F, 7A, 7B, 7C
5/21/ :18 PM

2. Set
Copy
collection of numbers or objects each member is called an element is an element of is not an element of is a subset of is a proper subset of number of elements in set A
1C, 1D, 1F, 7A, 7B, 7C
5/21/ :18 PM

3. Notation
Copy
union of sets set made of all elements in either one or other intersection of sets set made of all elements in both sets Use the IB Notation List for the defined sets of numbers. true or false?
1C, 1D, 1F, 7A, 7B, 7C
5/21/ :18 PM

4. Number Sets
Copy
1C, 1D, 1F, 7A, 7B, 7C
5/21/ :18 PM

5. Notation
Copy
null set (is a proper subset of any nonempty set) If , then C and D are disjoint (or mutually exclusive). universal set complement of set A If the universal set is all polygon classifications and set A was the set of all quadrilateral classifications, then: what are some of the elements of set A? what are some of the elements of the complement of set A?
1C, 1D, 1F, 7A, 7B, 7C
5/21/ :18 PM

6. Factors
Copy
positive integers ( ) that divide evenly into a given number 10 factors: 1, 2, 5, factors: 1, factors: 1, 2, 4, 8, 16, 32 prime numbers: positive numbers that are only evenly divisible by itself and one one is NOT prime two is the only even prime number positive integers that are not prime are composite numbers prime factors: “leaves” of a factor tree (used to write a number as a product of prime numbers)
Copy
Copy
1C, 1D, 1F, 7A, 7B, 7C
5/21/ :18 PM

7. Multiples
found by multiplying a number by each of the positive integers
10 multiples: , 20, 30, 40, 50, 60, …
15 multiples: , 30, 45, 60, …
common multiples can be found using multiplication
(although the product may not be the LCM)
2, 5, 6 2(5)(6) = is a multiple
2 2, 4, …, 24, 26, 28, 30, 32, …
5 5, 10, 15, 20, 25, 30, 35, 40, …
6 6, 12, 18, 24, 30, 36, …
but the least common multiple is 30
Copy
1C, 1D, 1F, 7A, 7B, 7C
5/21/ :18 PM

8. Practice
p. 25: 2df,6 p. 27: 3bd p. 28: 1dh, p. 29: 2,7 p. 34: 1, 3ab, 4 p. 35: 1-3 p. 214: 1abd, 2a, 3,4,6,7 p. 216: 2a, 4bce p. 217: 1ab, 2abef, 3 Read and follow all instructions. List the page and problem numbers alongside your work and answers in your notes. Use the back of the book to check your answers.
Copy
1C, 1D, 1F, 7A, 7B, 7C
5/21/ :18 PM