1. Order of Operations
Supplement to 2.1.2

2. Math in Universal!
Mathematicians like to brag that math is universal and constant
Los matemáticos les gusta jactarse de que las matemáticas son universales y constante

3. However…
Different countries were simplifying the same expressions and getting different answers 
Diferentes países fueron simplificando las mismas expresiones y obtener respuestas diferentes. 
They needed to create a standard way to simplify mathematical expressions and equations.
Tenían que crear una forma estándar para simplificar expresiones y ecuaciones matemáticas .

4. The Rules Simplify within Grouping Symbols Simplify Exponents
( ), { }, [ ], | |
Simplifique dentro de símbolos de agrupación
Simplify Exponents
Raise to Powers
Simplifique Exponentes
Complete Multiplication and Division from Left to Right
Completa Multiplicación y división de izquierda a derecha
Complete Addition and Subtraction from Left to Right
Completa La adición y resta de izquierda a derecha

5. Example For example: 8 + 3 * 4 = 11 * 4 = 44 Or does it equal
8 + 3 * 4 = 11 * 4 = 44
Or does it equal
8 + 3 * 4 = = 20
Decide which one you think is correct
Decida cuál crees que es correcto

6. Example For example: 7 * 4 - 1 = 28 -1 = 27 Or does it equal
7 * = = 27
Or does it equal
7 * = 7 * 3 = 21
Decide which one you think is correct
Decida cuál crees que es correcto

7. Example For example: 16 ÷ 2^3 = 16 ÷ 8 = 2 Or does it equal
16 ÷ 2^3 = 16 ÷ 8 = 2
Or does it equal
16 ÷ 2^3 = 8^3 = 512
Decide which one you think is correct
Decida cuál crees que es correcto

8. Example For example: 8 * 4 ÷ 2 = 32 ÷ 2 = 16 Or does it equal
8 * 4 ÷ 2 = 32 ÷ 2 = 16
Or does it equal
8 *4 ÷ 2 = 8 *2 = 16
Decide which one you think is correct
Decida cuál crees que es correcto

9. What is a helpful way to remember the order?
The classic example for remembering the order of operations is Please Excuse My Dear Aunt Sally.
Come up with your own way! P E
M D
A S

10. Exit Slip
NAME: PERIOD: Simplify the following expression using the rules of the Order of Operations: Simplifique la expresión anterior usando las reglas de la Orden de las operaciones.