1. Real Numbers and Number Operations
Notes 1.1
Real Numbers and Number Operations

2. The World of Numbers!!!

3. Write these numbers in order from least to greatest.
Graph them on a number line.
a. 5, -2, -3
b. -6, -3, -10 c.

4. Properties of Addition and Multiplication! : )
Property
Addition
Multiplication
Commutative
a + b = b + a
ab = ba
Associative
(a + b) + c = a + (b + c)
(ab)c = a(bc)
Identity
a + 0 = a, 0 + a = a
a ∙ 1 = a , 1 ∙ a = a
Inverse
a + (-a) = 0
a ∙ = 1, a ≠ 0
Distributive Property:
a(b + c) = ab + ac

5. Key Words Sum means addition (+) Difference means subtraction (-)
Product means multiply (x)
Quotient means divide (÷)

6. What is the quotient of -16 and ?
What is the product of -5 and 8?

7. Homework
page , 24-35, 42-45, 51-58