Speed calculation:division

Now,I would discuss division techniques.

Division by numbers 1,2,3,4,5,6 are very easy and I wont take much time for it.
Lets start......

Division by 1:same answer
Division by 2:do it dumbo!!Its very easy....

so and so till 5

Division by 6:
Just see this
1/6=0166 [16*1=16]
2/6=0.333 [ 16*2=32]
3/6=0.5 [16*3=48]
4/6=0.667 [16*4=64]
5/6=0.833 [16*5=80]

So,you can see its nearly the table of 16 on the decimal side,but the margin of error is quite high...

Division by 7:

Here it is table of 14
1/7=0.142 [14/1=14]
2/7=0.285 [14*2=28]
3/7=0.428 [14*3=42]
4/7=0.571 [14*4=56]
5/7=0.714 [14*5=70]
6/7=0.857 [14*6=84]

Here the margin of error is quite small and its quite easy to remember

Division by 11:

Here it is table of 9
1/11=0.09 [9*1=9]
2/11=0.18 [9*2=18]
3/11=0.27 [9*3=27]
4/11=0.36 [9*4=36]
5/11=0.45 [9*5=45]
6/11=0.54 [9*6=54]
7/11=0.63 [9*7=63]
8/11=0.72 [9*8=72]
9/11=0.81 [9*9=81]
10/11=.90 [9*10=90]

This method can be applied to other numbers also..

Now come the fun part....

For the every number we get another number's table.If that number is used for the division then we will get the first number's table.Lets clear it with an example:

For division by 11 we use 9's table;Similarly for division by 9 we can use the 11's table!!!!

Now for quick reference the pairs are given,one can be used for the division by the other.
4 - 25
2 - 5
6 - 16
7 - 14
8 - 12
9 - 11

Now,have fun.......calculation is basically very easy,you just have to know what to apply and where.