2. Review Write eight cubed in exponential form. Evaluate 73
Evaluate (x + y)2 when x = 4 and y = 5
5 x 5 x 5 x n x n x n

3. Objective: the objective for today is to be able to learn the order of operations in correct order and be able to apply them to solve problems.
1.3 Order of Operations

4. Definitions/Order Order of Operations: solve more than one operation.
Parentheses: ( ), { }
Exponents: x3, x2
Multiply: x / Divide: /
Add: + / Subtract: -
HELPER:
Parenthesis = Please
Exponents = Excuse
Multiply = My
Divide = Dear
Addition = Aunt
Subtract = Sally

5. Evaluate
6 / 3 + 7
¾ x
{(7 – 2)2 + 5} + 15
16 / 4 x 22

6. Evaluate
3 x 7 + 5
6 / x 7
6(5 – 4)2 + 3
{10 + (42 x 2)} / 6

7. Grouping Symbols / Examples
Kinds:
Brackets { }
Parenthesis ( )
Fraction bars /
Do in this order!!!
Note: have division need to rewrite.
Ex: 4 + 5
3 - 2
Write as (4 + 5) / (3 – 2)
18 - 6
7 – 4
7 x 4

8. Sales Tax To find: Find the total cost if meal was $20 with 6% tax.
Mulitply original by %
Add to total
Find the total cost if meal was $20 with 6% tax.

9. Tax, Tip-st Food bill: $12 tax: 5% Taxi fare: $42 Tax: 10% Meal: $25

10. Wrap up Questions /Comments
Hw: text pg , #’s: evens, 43-46,