Median Definition

Theoretical Probability Definition

Range Definition

Mode Definition

Outlier Definition

Definition for Variable

Divisibility Rule for 9

The rule for 9 is when you add all the digits of a number and it equals to a multiple of 9 (it can only be whole numbers and not fractions)

For example

Here's a link learn more about divisibility Click Here

Definition for Expression

Definition for Constant

Numerical Coefficient

Numerical Coefficient a number that multiples the variable

e.g

2: Numerical

t: Variable

is G7 a Numerical Coefficient? Answer and explain why it is and why it's not.

Subtracting Fraction

First of all you check if the denominators are like denominators meaning the denominators are the same. You want the denominators the same so it is easier to add or in this case subtract.

The method to get like denominators is L.C.M ( Lowest Common multiple)

For Example pretend we are subtracting this number 6/7 - 1/2=

To find the L.C.M you do all the multiples of 7 and 2 like this

2,4,6,8,10,12,14: 14 is the 7th multiple

7,14: 14 is the 2nd multiple

Do all the multiples until both match, here 14 is where multiples of 2 and 7 match.

Now we convert the fractions, what ever you do to the bottom you do to the top

Here is how you convert it.

After you do L.C.M you can now subtract the question with without even to thinking much.

All you have to do is subtract the fractions, also when you subtract the fractions you don't change the denominator its is just the numerator that changes when you subtract or add.

12/14 - 7/14 = 5/14

With this question you can't put it to lowest term because this is the lowest is gets you can't get any lower term that is equivalent to 5/14.

Tip: Remember to Almost Take your time don't want to mess up.

Tip#2: Remember to always put your answer to lowest term if possible.

I HOPE YOU ALL LEARNED A THING OR TWO!

Divisiblity Rule for 3

The rule for 3 is you add all the digits in the number. If it is 3 or a multiple of 3 then it is divisible by 3.
For Example:

Number 3456

3+4+5+6= 18

18 is divisible by 3 because it is a multiple of three. 3, 6 ,9 ,12 , 15 ,18

Divisibility Rule for 6

Any number that is divisible by 2 and 3 not just 2 and not just 3. But Both 2 and 3 for it to be divisible by 6.

e.g 12 is a divisible by 6 because 3x4=12 and 2x6= 12

So 12 is divisible by 6 because 12 is both divisible by 2 and 3 not just 2 and not just 3 but both 2 and 3.

Another example is 24 divisible by 6? Yes it is! Because 2x12=24 and 3x8=24.

24 has both 2 and 3 and not just 2 and not just 3 but both 2 and 3.

I have a Question is 124 divisible by 6? If you figured it out post the Answer and explain why.

Converting Fractions to Decimals

Steps to convert fractions to decimals.

1. Divided the denominator to itself.

now the denominator is one.

2. Now you divided the denominator to the

numerator. Now you have a decimal over one.

3. Finally round it off to the place value indicated.

Also Here is a picture of the place values we are going

to use.

These are the place values

we are going to use for the

questions below. Also we will

be using ten thousandths just for

rounding off.

5.Use a calculator to change each fraction to

a decimal number. Round to the place

value indicated.

p.g 137 in MathLinks 7

Number 5 questions.

a) round to the nearest tenth e.g 0.1, 0.2 , 03 .etc

<-As you see I followed all the steps

the 0.5/1 was supposed to be 0.52/1.

remember below 5 stays, over 5 five

goes up. 2 in the hundredths place is below

5. So 0.5 stays as 0.5.

b) Round it off to the nearest hundredth e.g 0.10, 0.20, 0.25 .etc

<-As you Again I followed all the steps.

this picture is already rounded off.

The real numbers were 0.49767442.

The numbers you have to look at to round

off the decimal is 0.497 remember below 5 stays

over 5 five goes up. 7 is above 5 so the

hundredths place goes up by one.

That's why it's 0.50/1.

c)Round it off to the nearest tenth e.g 0.1, 0.2 , 03 .etc

<-Once again I followed all the steps.

This picture is once again rounded off

already. The real numbers were 0.86.

6 is above 5 so 8 goes up by one. I guess you

know the rules for rounding off

below 5 stays and above 5 goes up.

d)Round it off to the nearest thousandth e.g 0.123, 0.234, 0.345, 0.543. etc

<- Finally! The last one. As you see I followed all the

steps. This picture is already rounded off. The original

number of 0.682/1 was 0.6816609. I look at the ten

thousandths place it was the number 6. 6 is above 5 so

the thousandths place goes up by one.

I hope you guys learned Something!

Things I used:

Calculator

Paint

Math Notes

My Head

The Computer.

Here's a link to learn more.

Click here

Also you can play this

Game converting fractions

to decimals.

Read Instructions First before playing

Click Here

Also don't be afraid on making mistakes.

Mistakes help you learn something new.

"A person who never made a mistake never tried anything new."

-Albert Einstein (1879-1955)

Order of Operations

BRACKETS

EXPONENTS

DIVISION

MULTIPLICATION

ADDITION

SUBTRACTION

BEDMAS Answer

Link: This is the Link.