Hello bello, wonderful people! How are you feeling today? Enjoying this lovely Fri-Yay? Well, today's post is a little different from my usual posts. A new category has been added in my blog... Education! So, I thought I'd start with

*math*- Math can be so unkind sometimes, but we have to be kinder. I will start with the basics of math. So, are you ready? Yes? Good! Let's get started:

**Classifying Numbers**

There are six categories here. And they are:

-Natural Numbers: The counting numbers.

(1,2,3,4,5,6,7...)

- Whole Numbers: Natural Numbers + Zero.

(0,1,2,3,4,5,6,7...)

-Integers: Whole Numbers + Negative Numbers

(-2,-1,0,1,2,3,4,...)

-Rational Numbers: The number stops or repeats itself.

(-13,2.121212121212,-0.413)

-Irrational Numbers: The number never stops and never repeats itself.

(3.8775679432...)

-Real Numbers: Rational and Irrational Numbers.

Please note: Natural Numbers, Whole Numbers and Integers

__are__Rational Numbers.**Operations**

Addition + Sum

Subtraction - Difference

Multiplication . Product

Division / Quotient

**Rules of Addition and Subtraction**

(+) + (+) = (+)

(-) + (-) = (-)

When both of the signs are the same, we

__add__and keep the sign.

(-) + (+) =

In the example shown above, both of them have different signs. So, the operation will be

__subtraction__and we will take the sign of the bigger number. For example:
(-10) + 5 = -5

**Rules of Multiplication and Division**

(+) . (+) = (+)

(-) . (-) = (+)

If both of the numbers have the same sign, the answer will always be positive.

(+) . (-) = (-)

In the example shown above, both of them have different signs, So, the answer will always be negative.

**(Same rules applies to Division)**

**Zero Properties**

0 + a = a

0 - a = -a

a + 0 = a

a - 0 = a

(0) . (a) = 0

0/a = 0

a/0 = undefined

**Rules of Order of Operation**

We use the

__BEDMAS__rule.
B = Brackets

E = Exponents 'Power'

DM = Division and Multiplication

AS = Addition and Subtraction

Please note: You must go in order. But

__remember__division and multiplication have the same power, so do the one comes first. Same rule applies to addition and subtraction.
Solve this by yourself:

2 + [ 4 + 2 . ( 6 – 10 )

^{2 }]^{}
Click

**here**to get the right answer and to see the steps. (__kindly solve it by yourself first__)
I really hope that was helpful! Please feel free to share your thoughts & questions. See you 'write to you' next Fri-YAY!

XO,

Khadija

## No comments

## Post a Comment