Real Numbers and Number Operations Notes 1.1 Real Numbers and Number Operations
The World of Numbers!!!
Write these numbers in order from least to greatest. Graph them on a number line. a. 5, -2, -3 b. -6, -3, -10 c.
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
Key Words Sum means addition (+) Difference means subtraction (-) Product means multiply (x) Quotient means divide (÷)
What is the quotient of -16 and ? What is the product of -5 and 8?
Homework page 6 11-29, 24-35, 42-45, 51-58