Adding Integers

Adding integers

We are going to start with the method used for when we have the same sign.


Same sign: This is the simple part of adding integers, when adding with the same sign you pretty much just add it. When you add with negative sign just pretend the sign isn't there and just put them in at the end, like so. But for adding it's just adding them both together.

Example:    Beginning: (8) + (6) = (14)
             End: (-8) + (-6) = (-14)

                    (+6) + (+6) = (+12)

Different signs: When adding with different sign you use the sign with the biggest number, so if you have (+6) + (-3), you have to use the sign with the larger number in this case it's +.

Example:    (+8) + (-3) = (+5)
                 

This is it for my blog i'm sorry it's not to long because I lost my notes, but I tried my best and i'm going to make a better adding integers blog this weekend.

Subtracting Integers, YEAH

Subtracting Integers
Anian here. Subtracting Integers? Oh.
1. This could start in different ways, either (-N) - (-N) , (+N) - (+N) , (-N) - (+N) or (+N) - (-N).
N=any number
Examples: (-5) - (-2) , (+6) - (+4), (+5) - (-4) and (-9) - (+7).
2. Now let's really start now,

(-5) - (-2) = (-3)
- - - (- -)->
(-3)
This is pretty much the math that we are all use to. How do I know? Well, notice the negative sign/symbols, they're the same. Here is a tip: if you want you can ignore the symbols completely, then afterwards put back the symbols. This only works if both integer have similar symbols.

(+6) - (+4) =  (+2)

+ + (+ + + +) ->
(+2)
Almost the same as before, the only difference is that this is positive. The one before was negative.
NEXT!

3. Now things get interesting,

(+5) - (-4) =

+ + + + + Wait, how do you take away (-4) out of (+5)? Zero pairs! I'll show you.

+ + + + + + + + +
 (+9)       ( -  -  -  - )->

By adding  a few zero pairs, doesn't change the integer. Now you can take the negative or positive. If you add any extra won't make any difference as I said before, zero pairs doesn't change the integer.

(-9) - (+7) =

-  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -
(-16)                   ( + + + + + + + )->

Same as before, except vice versa. Just read the one before.
Very AWESOME AMZING TIP:
Take a look at (-9) - (+7). Now look at (-9) + (-7). If you notice, they both equal (-16). Here is the tip, do the opposite or make them the same symbol, then the opposite of the equation symbol, that is either plus or minus.


Now, I hope that I helped. And thank you for  taking a few minutes on reading this. Subtracting Integers, COMPLETED!