Enter Title

Definitions

100

What are whole numbers? And give examples.

1,2,3

200

Is zero a whole number?

Yes

300

What are integers? And give examples

Whole numbers + negative whole numbers (-1,0,1)

400

What are rational numbers? And give examples

Integers + Fractions and Decimals (that terminate or repeat in a pattern)

1/3, .5, -.8798

500

What are irrational numbers? And give examples

decimals that are non-terminating and non-repeating (they go on forever without a pattern)

π, √2

Exponent Rules

100

x^o = ?

x^o  = 1

200

2^(3x) = 2^6

What is x?

3x=6

x=2

300

3^8x/3² = ?

3^8x-2

400

x^3/4 = ?

³√x⁴

500

8^2x = 2³

How do we change 8^2x to have a base of 2?

8^2x = (2³)^2x = 2^6x

So now 2^6x = 2³

Percents

100

What is 40% as a fraction and decimal?

40% = 40/100 (or 4/10=2/5)

40% = .4

200

What percent is 2/5?

2/5=4/10= 40/100

40%

300

What is cross multiplying?

When a fraction equals a fraction:

²⁰/₁₀₀ = ³/_x

You multiply both sides by 100 and both sides by x:

20x = 3(100)

400

If you buy a shirt that is $40, and it has a 15% sales tax. How much do set up this problem with decimals?

40(1.15)

500

You have a bag of 12 marbles. You know that 25% of the marbles are red. 

How do you set up fractions to CROSS MULTIPLY to find HOW MANY MARBLES ARE RED?

25/100 = x/12

Factors/Multiples

100

How do you find the PRIME factors of a number? How do you find ALL the factors of a number?

PRIME - Factor Tree

ALL - Factor Table

200

What are the prime factors of 32

32

2  16

    2  8

       2  4

           2  2

300

How do I find the multiples of 7?

7: 7, 14, 21, 28, ...

400

What is the Least Common Multiple of 4 and 5?

4: 4, 8, 12, 16, 20, 24

5: 5, 15, 20, 25

500

How many odd factors does 60 have?

60

1,60

2,30

3,20

4,15

5,12

6,10