Algebra Ch 2 Review

Properties

100

Lets you add or multiply two numbers in any order

Commutative Property

200

Adding 0 to any number does not change the number

Identity Property of Addition

300

the grouping of numbers in addition does not matter.

Associative Property of Addition

400

The sum of a number and its opposite is 0

Addition Property of Opposites

500

Multiplying a number by a sum or difference in parenthesis.

Distributive Property

More Properties

100

Name the Property: 7(2 -y)

Distributive Property

200

Name the Property: 0n = 0

Zero Property of Multiplication

300

Name the Property: 21 * 1 = 21

Identify Property

400

Name the Property: 3 * (-4) = (-4) * 3

Commutative Property

500

Name the Property: (2*4) * 5 = 2 * (4*5) 

Associative Property

Order of Operations

100

-2 + 3 - 6 + 2

-3

200

32 - 30 / 10

29

300

-9 / 3 + 4 * 7

25

400

(4+16) * 5 * 2

200

500

(12-8) * 2 * 1 - 4

4

Simplifying Expressions

100

4x + 5x + 2x - 1

11x - 1

200

3w + 2y + 4w - 3y

7w - 1y  OR  7w - y 

300

3x + 5(4 + x)

8x + 20

400

12 - (c + 7) 

5 - c   OR   -c + 5

500

6(x-8)

6x - 48

Formulas

100

Find the area of a rectangle if all the sides are 7in

28in squared

200

Find the perimeter of a triangle if the sides are 12in, 10in, and 8in

30in

300

Find the volume of a box if the length is 4cm, width is 3cm, and height is 1cm. 

12cm cubed

400

A=lw is the formula for finding _____

Area

500

V=lwh is the formula for finding

Volume