Download presentation

Presentation is loading. Please wait.

Published byCale Gascoigne Modified over 3 years ago

1
1-3 ORDER OF OPERATIONS MS. BATTAGLIA – ALGEBRA 1 CP OBJECTIVE: USE THE ORDER OF OPERATIONS AND EVALUATE VARIABLE EXPRESSIONS.

2
WARM UP Compare the quantities in Column A and Column B. Column AColumn B The total cost of items bought by a customer The change the customer receives when paying with a $10 bill. A.The quantity in Column A is greater. B.The quantity in Column B is greater. C.The quantities are equal. D.The relationship cannot be determined from the information given.

3
WORK WITH A PARTNER… Two formulas for the perimeter of a rectangle are P = 2l + 2w and P = 2( l + w ) 1)Let l = 12 and w = 8. Find the perimeter of the rectangle using each formula. 2)When you used the formula P = 2l + 2w, did you add first or multiply first? 3)When you used the formula P = 2 (l + w), did you add first or multiply first? 4)Which formula do you prefer to use? Why?

4
DISCOVER… Solve 3 + 5 – 6 ÷ 2 Solve 3 + 5 – 6 ÷ 2 using division from left to right. then addition, then subtraction.

5
ORDER OF OPERATIONS From left to right

6
QUICK REVIEW!! An exponent indicates repeated multiplication. 3 4 = 3 3 3 3

7
EXAMPLE Which operation should you do first to simplify each expression? 1.3 + 6 4 ÷ 2 2.3 6 – 4 2 3.3 (6 – 4) ÷ 2 4.3 ÷ 2 6

8
Find the total cost of the sneakers shown in the ad. Use p + r p price sales tax sales tax rate Evaluate an expression with variables by substituting a number for each variable.

9
EXAMPLE Evaluate 3a 2 – 12 ÷ b for a = 7 and b = 4

10
EXAMPLE Evaluate each expression for c = 3 and d = 2 a) cd 2 b) (cd) 2

11
EXAMPLE Write an expression for each phrase. a) Four times three, squaredb) The square of three, times four

12
HOMEWORK P. 17-18 #2 – 12 even, 18,20,26,28

Similar presentations

OK

Variables and Algebraic Expressions 1-3. Vocabulary Variable- a letter represents a number that can vary. Constant- a number that does not change. Algebraic.

Variables and Algebraic Expressions 1-3. Vocabulary Variable- a letter represents a number that can vary. Constant- a number that does not change. Algebraic.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on 500 mw turbo generators Ppt on non agricultural activities in uganda Ppt on marketing strategy Ppt on section 186 of companies act 2013 Ppt on indian culture in hindi Ppt on credit default swaps greece Download ppt on modern periodic table Ppt on places in our neighbourhood living Ppt on manufacturing of turbo generators Moving message display ppt on tv