1. COMMUTATIVE PROPERTY What does the word commute mean or in what context is it used? Definition: Commutative Property says that the ______________ in which you add or multiply numbers ____________ change the sum or product (answer) Travel, exchange, switch order does not

2. Multiplication: a * b = b*a Example: -7 * 11 = -77 = 11 * - 7 2 * 3 * 4 =24 = 3 * 4 * 2 Addition: a + b = b + a Example: 15 + 12 = 27 = 12 + 15 3 + 4 + 5 + 6 = 18 = 6 + 4 + 3 + 5 COMMUTATIVE PROPERTY

3. ASSOCIATIVE PROPERTY What does the word associate mean or in what context is it used? Definition: Associative Property says that the way you _______________ more numbers when adding or multiplying ______________ change their sum or product. Combine, join, together, socialize, group group three or does not

4. ASSOCIATIVE PROPERTY Addition (a + b) + c = a + (b + c) Example: (11 + 8) + 9 = 28 = 11 + (8 + 9) 0.4 + 1.1 + 1.5 + 1.5 = 4.5 = (0.4 + 1.1) + (1.5 + 1.5) Multiplication (a * b) * c = a * (b * c) Example: (3*-6) * 5 = -90 = 3 * (-6 *5) 2 * 3 * 4 * 5 =120 = (2 * 3) * (4 * 5)

5. ORDER OF OPERATIONS P E M D A S Please Excuse My Dear Aunt Sally arenthesis xponents ultiplication ivision ddition ubtraction P/G E MD AS LEFT TO RIGHT LEFT TO RIGHT (WHICH EVER COMES FIRST)

6. ORDER OF OPERATIONS if a = 7, b = 3, and c = 5 1. 2. 3. 4. 5. 6.

7. Homework Pg 14 16-28 EVEN, 29