Data sets

Mean- add up all the values in the set then divide the sum by how many values there are
Median- the middle number in a set of ordered values, might be the mean of 2 middle values
Mode- the value that shows up the most
Range- positive difference between largest and smallest values
Outlier- values that are too big or too small compared to the other values

Probabality

favourable outcomes
possible outcomes

p: heads and rolling a 4 with a regular die is

Experimental probabilty- actually doing the trials
Theoretical probability- what you expect to happen

Circle formulas

c=3.14d
c-2 3.14 r
d=2r
a=3.142

Integers

Negative numbers represent values below zero and positive numbers represent values above zero
eg. Above and below ground or sea level
1+(-2) = (-1) is an additional statement
3-(-1) = 4 is a subraction statement

Factors of 32

Factors of 32

Formulas

Area of a triangle

A= b x h

vdsfs 2

Area of parallelogram

A= b x h

Converting fractions, decimals, and percent

1/2 = 50%, 0.5

0.75 = 3/4, 75%

80% = 4/5, 0.8  

Quadrants

(+,+) quadrant I
(-,+) quadrant II
(-,-) quadrant III
(+,-) quadrant IV

Divisability Rule for 6

The divisibility rule for 6 is when the number is divisible by both 2 and 3.
For example.
12÷2= 6
12÷3= 4
12 is divisable by 2 and 3, making it divisible by 6.

(6o-30)+8x2÷4

30+8x2÷4

30+16÷4

30+4

34

Bedmas Question

7- 33 ÷ 9

7- 27 ÷ 9

7 - 3

4

Check out this video about doing math the wrong and right way!

Fun Math Website

http://www.mathplayground.com/games.html
Here's a fun math website you can go to!

5x4+2-1x6+3-8÷4
20+2-1x6+3-8÷4
20+2-6+3-8÷4
20+2-6+3-2
22-6+3-2
16+3-2
19-2
17
I did the latest BEDMAS question.

I did question 7 on page 214

Textbook Math

I did number 9 on page 146.

I did number 11 on page 138.

Order Of Operations

Okay, there is a certain way to answer a math problem like this. It's called "BEDMAS". The reason is because the order of operation goes something like this:
Brackets
Exponents
Division Multiplication
Add Subtract
This picture right here gives you an idea of how it works.
And here is a website that will help you.
And if you bananas still don't understand, here is a video. Well, hope that works.