Intro to Algebra Review

Absolute Value

100

Find the absolute value of:

|-10|

Absolute value is the distance from zero.

What is 10?

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

200

What is greater:

|-6| or |3|

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

What is l-6 l?

300

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

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

What is 8, l 12 l, l -14 l, 19, l-20 l?

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

400

What is:

|-7| + |-2|

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

What is l -9 l ?

500

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

Remember to use your order of operations.

What is 0?

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

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

What is base? What is exponent?

200

How can you rewrite 9² in expanded form?

What is 9x9?

300

How can you rewrite the following in exponential form?

7 x 7 x 7 x 7 x 7 

What is 7^4?

400

What is the value of:

8⁴

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

What is 4,096?

500

What is the value of:

2³ + 3² - 4²

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

What is 1?

Order of Operations

100

Simplify the following expression:

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

What is 62?

200

Simplify the following expression:

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

What is 5?

300

3 + 4² (3 + 2)

What is 95?

400

 

What is 45?

500

What is 30?

Solve

100

x - 5x = 64

What is x = -16

200

-0.3m = -12

What is 40?

300

2.5x = -60

What is -24

400

x - (-3) = 5

What is 2

500

x - 0.9x = 7

What is 70?

Polynomial Operations

100

(6x²-x-4)+(2x²+5x-5)

8x²+4x-9

200

(4x²-x-3)-(x²+2x-5)

3x²-3x+2

300

3(x-4)-5(x²+4x-6)

-5x²-17x+18

400

Divide: (4x²-5x-21)/(x-3)

4x+7

500

(7x²+8x+2)(8x²+6x+5)

56x⁴+106x³+99x²+52x+10

Foil/Distribute

100

7+9(2x-3)

18x-20

200

2x(3x+4)

6x²+8x

300

(x+6)(x-7)

x²-x-42

400

-3(-x-10)

What is 3x+30?

500

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

What is 6x²+2x-8