ADDITION

Now you will learn how to do additions quickly.Here i show you many tricks to solve addition among these you can follow which one is easy to you.

1.When you do addition, always start from the larger number.
Example 1: 3+9
3+9 is Harder:"3.........9,10,11,12".
9+3 is Easier :"9,10,11,12.
So,add 9+3 instead and you will get the same solution.

Example 2: 5+7
5+7 is Harder:"5..,8,9,10,11,12".
7+5 is Easier :"7,8,9,10,11,12".
So,to add 7+5 instead and you will get the same solution.

2.Jump strategy, you can jump to numbers in this way:
Example: 3+12
so you can break 12 into (10+2)
Now you get like this 3+10+2
so, add 3+2 and then add 10 to the sum(3+2=5).
(3+2)+10= 5+10= 15.

3.Adding up to 10.If you have to add more than 2 or more numbers,then try to make them sum to 10.It is not required they should be consecutive.
Example: 6+3+4+5+7
so if you observe here we can make sum of 10 i.e., 6+4=10 ,7+3=10 then total 10+10=20.
now remaining number is 5,so 20+5=5.

4.Break numbers in 10`s and then add both.
Example: 16+6
So,Now break 16 into 10's (10+6)
Now you will get like this 10+6+6
So,first add (6+6)=12
Now add 10 to the sum i.e., 10+12=22.

5.Borrow a number from other number to make it multiple of 10
Example:8+4
So to make 8 to 10, you can borrow 2 from other number 4
then it will be 4-2=2,and 8+2=10.
Sum=10+2=12.

6.Take number Backwards to other number ,to make it multiple of 10
Example:13+5,you can 3 backwards to other number
So we will get 13-3=10.
And we add 3 to other number i.e., 3+5=8
The sum is 10+8=18.

7.Double the number,when the given numbers are same.
Example: 5+5
So you can do like this 2*5=10.

8.Double the number if they are close and then you can reduce or add to fix it.
Example: 8+7
you can write  7 as 8-1
Now it will be look like 8+8-1
So, 2*8=16
Then Result=16-1=15.