King/Halling Algebra 2011-2012 PEMDAS FLTR King/Halling Algebra 2011-2012 From Left To Right

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Presentation transcript:

King/Halling Algebra 2011-2012 PEMDAS FLTR King/Halling Algebra 2011-2012 *From Left To Right*

AIM What does “PEMDAS FLTR” stand for and why is it important when doing Algebra?

Do Now Take out your foldable and your worksheet from yesterday. Begin by completing #1-13 on the back of the worksheet.

Introduction What does PEMDAS FLTR stand for? How do we use it? How do we perform operations?

PEMDAS FLTR In order to properly evaluate expressions, you have to use PEMDAS FLTR as a road map Steps: Identify the operations present Complete operations with parenthesis and exponents Perform multiplication/division simultaneously from left to right Perform addition/subtraction simultaneously from left to right

Examples 10(5 + 2) – 32 Operations involve parenthesis, exponents, multiplication, and subtraction Parenthesis first: 10(7) – 32 Exponents next: 10(7) – 9 Multiplication next: 70 – 9 Subtraction last: 61

Example #2 52 x (9 – 3 x 2) + 4 ÷ 2 Parenthesis first: 52 x (9 – 6) + 4 ÷ 2 Parenthesis again: 52 x (3) + 4 ÷ 2 Exponents next: 25 x 3 + 4 ÷ 2 Multiplication/Division from Left next: 75 + 4 ÷ 2 Division Again: 75 + 2 Addition Last: 77

More Practice Simplify each expression: 40 – 3 x 32 8 x 4 + 92 21 + 49 ÷ 7 + 1 (17 – 7) ÷ 5 + 1 [10(9 ÷ 3 + 2) – (4 x 2)] [10(9 ÷ 3 + 2) – (4 x 2)]2

40 – 3 x 32

8 x 4 + 92

21 + 49 ÷ 7 + 1

(17 – 7) ÷ 5 + 1

[10(9 ÷ 3 + 2) – (4 x 2)]

[10(9 ÷ 3 + 2) – (4 x 2)]2

Exit Ticket Simplify the following expressions 68 ÷ 2 + 10 ÷ 5 [20(5 - 3)2 – 75 ÷ 5] + (8 – 5)

Homework #4 Pg.13# 1-3, 15-17