Pre Algebra Review

Solving for x

100

4x+2 = 18

4

200

-x+4x+49 = 64

x= 8  

300

2(x+4) = 10

1

400

4(x-3) = 5(x+2)

-22

500

y/4 + 7 = 2

y=-20

Exponents

100

When you see the following expression, what is the big number called and what is the little number on top of it called?

2⁴

Big number = base; little number = power

https://www.khanacademy.org/math/pre-algebra/pre-algebra-exponents-radicals/pre-algebra-exponents/v/introduction-to-exponents

200

Solve: 4^-4

1/256

300

Solve:

7^-3

1/343

400

What is the value of:

(2/8)⁴

16/4096

500

What is the value of:

2³ + 3² - 4²  - (1/2)³

7/8

Graphs

100

Graph y = l x l

show on board

200

Graph y = 2x - 1

show on board

300

Graph y = l x l - 1

show on board

400

Graph y= l x l + 4

show on board

500

Graph y = l x -2 l + 1

show on board

Inequalities

100

2x - 1 < 3

 x < 2

200

-3x - 4 < 11

x > -5

300

-10 + 15 - 9²

-76

400

-2 + 2(-3 + 5)

4

500

2³ + 3² - 4² +1³ - 3²

-7

Random

100

How many Olympic rings are there?

5

200

What planet is known as the "Hottest Planet"?

Venus

300

When is Mrs. Rin's birthday?

January 16

400

How many bones are in the adult human body? 

206

500

Which blood type among humans is the rarest?

AB Negative