Pre Algebra Review

Absolute Value

100

What is greater:

|-6| or |3|

|-6|

The absolute value of a number is the number's distance from zero.

200

Place the following in order from smallest number, to biggest number:

|-20|, 18, |12|, |-14|, 8

8, |12|, |-14|, 18, |-20|

The absolute value of a number is the number's distance from zero.

https://www.khanacademy.org/math/arithmetic/arith-review-negative-numbers/arith-review-abs-value/v/absolute-value-of-integers

300

What is:

|-7| + |-2|

9

The absolute value of a number is the number's distance from zero.

400

2 x |-5| + |4| - 14

0

Remember to use your order of operations.

Exponents

100

How can you rewrite 9² in expanded form?

9 x 9

200

How can you rewrite the following in exponential form?

7 x 7 x 7 x 7 x 7 

7⁵

300

What is the value of:

8⁴

4096

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

400

What is the value of:

2³ + 3² - 4²

1

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

Order of Operations

100

Simplify the following expression:

5

https://www.khanacademy.org/math/pre-algebra/pre-algebra-arith-prop/pre-algebra-order-of-operations/v/introduction-to-order-of-operations

200

3 + 4² * (3 + 2)

83

300

45

400

12

Adding Integers

100

14 + -12

2

https://www.khanacademy.org/math/arithmetic/arith-review-negative-numbers/arith-review-add-negatives-intro/v/adding-negative-numbers

200

-10 + 15

5

https://www.khanacademy.org/math/arithmetic/arith-review-negative-numbers/arith-review-add-negatives-intro/v/adding-negative-numbers

300

-2 + -3 + 5

0

400

6 + (-2 + -5)

-1

Distributive Property

100

5(x-3)

5x-15

200

7+9(2x-3)

18x-20

300

-3(-x-10)

3x+30

400

Solve for x

-4y + 2x + 28 = 0

x = 2y - 14

solving equations

100

V-10=-9

V=1

200

X-3=4

X=7

300

44=-11K

K=-4

400

-40=-5P

P=8

500

3p-2=-29

P=-9

Combining like terms

100

3X+5+7X=

10X+5

200

3X-X-25Y²

2X-25Y²

300

-8x-27+23x-7

-15X-29

400

2c+7d-8c-c-5+4d

-7c+11d-5

500

9m-5n+14+m-2n-7

10m-7n+7