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## The an easy Operations

In basic mathematics there are many ways of speak the very same thing:

## Addition is ...

... Bringing 2 or much more numbers (or things) together to do a new total.

The number to be included together are called the "**Addends**":

## Subtraction is ...

... Acquisition one number away from another.

**Minuend − Subtrahend = Difference**

**Minuend**:The number the is to be subtracted from.**Subtrahend**:The number the is to it is in subtracted.**Difference**: The result of individually one number native another.

## Multiplication is ...

... (in its most basic form) **repeated addition**.

Here we watch that 6+6+6 (three 6s) do 18:

It can additionally be said that 3+3+3+3+3+3 (six 3s) make 18

But we can likewise multiply by fractions or decimals, i beg your pardon goes past the straightforward idea of repeated addition:

Example: **3.5 × 5 = 17.5**

which is 3.5 lots of 5, or 5 several 3.5

## Division is ...

... Splitting into equal parts or groups. That is the result of "fair sharing".

Division has actually its very own special words to remember.

Let"s take it the straightforward question that **22 split by 5**. The prize is **4**, through **2** left over.

Here we watch the vital words:

Which can also be in this form:

## A portion is ...

... Component of a whole.

The top component (the numerator) states **how numerous parts us have**.

The bottom part (the denominator) states **how numerous parts the totality is divided into**.

See fractions for an ext details.

## A Decimal Number is ...

... A number that consists of a Decimal Point.

See decimals for an ext details.

## A portion is ...

... Parts per 100. The prize is %

Example: 25% method 25 per 100 (25% that this crate is green)

See Percentages for much more details.

## Average (Mean) is ...

... The **sum** split by the **count**.

We calculate the mean by **adding up all the values**, then division by **how countless values**.

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### Example: What is the typical of 9, 2, 12 and also 5?

Add up every the values: 9 + 2 + 12 + 5 = 28

Divide by how many values (there are 4 of them): 28 ÷ 4 = **7**

So the average is **7**

See mean for more details.

Illustrated Mathematics thesaurus Numbers Index