Signed Number Operations Section 2

Does the order in which operations are done make any difference? Ex. Which is the correct answer when simplifying 6 + 3 x 12? 6+3x12 =6+36 =42 6+3x12 =9x12 =108 OR

What Rule Do These Examples Seem to Follow?

PEMDAS (Please Excuse My Dear Aunt Sally) Parenthesis Exponents Multiplication/Division Addition/Subtraction

Now you try, using the rule… A: 16

A: 15

A: 28

A: 16

A: 16

A: -96

A: -1

A: -5.2

Absolute Value Absolute Value- the distance of a number from 0 (7 Units from 0) (7 Units from 0)

A: 16

Order of Operations Using Signed Numbers Find the value of y for x= -4 b) y= -17-3x Find the value of y for x=4 c) y= 7-2x Find the value of y for x=-2 d) y= 7-3x = 12 + (-14) = -2 = -17 – 3(-4) = -17 +12 = -5 = 7 – 2(4) = 7 – 8 = -1 = 7 – 3(-2) = 7 +6 = 13

Worksheet