multiplication tricks

                  multiplication trick

Any number × 99
example -
 99×35
 1st step -( 35-1)=34
2nd step- subtract 34 from 99
                 (99-34)=65
3rd step- combine both no.
    3465 is the answer.
     
 Any number × 11
example -
11×23
step 1- side 2 and 3 like 2 _3
step 2- then add 2 no. 5
step 3- then put 5 in between 2 and 3
answer is 253.

note carry case
11×76
step 1- side 7 and 6 like 7_ _6
step 2- then add 7 no. 6
step 3- if carry occure then (13) then take 3 and 1 as carry. then carry 1 is added to 7.
836
answer is 836.