These lessons are based on  Vedic Maths" principles and other maths tricks.These principles are general in nature and can be applied in many ways and very very useful in commercial arthematics. I hope all of you like these lessons  and make your calculation more fast  and save lot of time in daily calculations and examinations  or any entrance test  like CAT /IIT /BANK PO /ENGINEERING ENTRANCE TEST/PMT /MCA ENTRANCE TEST/MBA ENTRANCE TEST  etc  etc
 

Method for multiplying numbers where the first figures are  same and the last figures add to1 0
  .    42 x 48 =
       Both numbers here start with 4 and the last
       figures (2 and 8) add up to 10.
          
         just multiply 4 by 5 (the next number up)
         to get 20 for the first part of the answer.
         

         And we multiply the last figures: 2 x 8 = 16 to
         get the last part of the answer

                   Method for multiplying numbers where the first figures add up 10 and the last figures are same
                                                                                              44X64 

Here first figures are 4 and 6 and their add up 10 and unit figures of both number are same  Just multiplying the last figures 4x4=16 Put it at right hand side 
 Again multiplying the first figures and add common degit(4x6 )+4=24+4=28 put it at left hand side 
Now we get required answer2816
Similarly 36x76 ,   6X6 =36 right hand side  , (3x7)+6= 21+6=27 left hand side 
Required answer is 2736
NOTE  If multiplication of last figures is less than 10  add zero before unit digit
Ex  81x21 , 1x1=01,( 8x2)+1= 16+1=17  Required answer 1701

Method for  multiplying   numbers where the first number"s add up10 and and the second  number's digits are same
46X55

Here first number's add up is 10  and second number "s digits  are common i.e 5
Just multiplying last figures of both numbers 6x5 =30 put it at right hand side 
Again multiplying first figures of both numbers and add common digit of second number
(4x5)+5 =20+5 =25 put it left  hand side 
Required answer is 2530 ( If multiplication is in unit in first step add zero before it)

Multiplying numbers just over 100.

108 x 109 = 11772

The answer is in two parts: 117 and 72,
117 is just 108 + 9 (or 109 + 8),
and 72 is just 8 x 9.

Similarly 107 x 106 = 11342

                                                                                           Practice Test 1
                                                                           Solve mentally these questions
                                                                 Note down  your calculation time by  watch
                                                                            (Suggested time 90 seconds)

                                       
                                                
                     22 X 28              35 X 35           48 X 42
                                                     
                         73 X 33               12 X 92           48 X 28

                           28 X 22                 37 X 88          91 X 66
                                                      
                              118 X105            109 X108         112 X106
                                                    
                             91  X  99               33 X 37            55X55

                                             Now  check your answer  with the help of a calculator                                                  Lesson  1  2  3 4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  
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