S

Warm Up!!(Left side)

What is the difference between an Equation and an Expression??

Order of Operations

PEMDAS Rules?

Operation vs. Step

Order of Operations

What do I do first?(12 – 6 + 3)2 10 + 7 2 3 5 – 3

Order of Operations

Tricks to Remember 3(2) 4 – (– 5 ) 3 – 12 ( – 6) ( – 4 ) ( – 2 )2 vs. – 22

S

Warm Up!!(Left side)

Why do we need x’s and y’s (variables)?? How does that relate to word problems?

Verbal Expression Mathematical Expression

Key words?? (Left) More than Double Half Fewer

Are these the same? (Guess left, write right) The sum of 5 times a number and 13

5 times the sum of a number and 13

Verbal Expression Mathematical Expression

1. 3 less than 4 times a number

2. The sum of 6 times a number and 2

3. 3 more than half the product of 7 and a number

Verbal Expression Mathematical Expression

How many ways can we write this as a verbal expression?

(5x + 1) – 3

Verbal Expression Mathematical Expression

Properties of Equality

Commutative Associative Distributive

Sounds

like…

Def in

Math

Properties of Equality

1. 3x – 7 + 4x – 6 2. 5a + 2(4 – 6a)

3. 7(2x + 3) + 4(x – 1) 4. 9x – (11 – 14x)