Mutiplication by 99

We can multiply any number with 99 using following Vedic mathematics Techniques.

Consider one example 987678 x 99
    1. Subtract one from multiplicand
       i.e. 987677
    
   2. First Group the multiplicand 2 digit each from unit digit place
         i.e.      98  76  77

   3. Write Same group below the first group leaving one group from the left
         i.e.      98    76    77
                            98    76    77
   4. Extreme right group subtract from 99 and remaining part just sutract
       i.e.       98     76     77
                            98     76   77
                 ____________________
                   97    78      01    22
                _____________________

   5. Final Answer is = 97780122
    

Speed Maths Video Part-1

Raising to fourth and Higher power

Squaring of numbers between 50-60 (A Small Video)

Squaring of a number ending with 5 using Speed Maths Method (Video)

Fractions, Decimals and Percentage

Number	Fractional Value	Decimal Value	Percentage
With 2	1/2	0.5	50%
With 3	1/3 2/3	0.3333 0.6666	33.33% 66.66%
With 4	1/4 2/4 3/4	0.25 0.5 0.75	25 50% 75%
With 5	1/5 2/5 3/5 4/5	0.2 0.4 0.6 0.8	20% 40% 60% 80%
With 6	1/6 2/6 3/6 4/6 5/6	0.1666 0.3333 0.5 0.6666 0.8333	16.66% 33.33% 50% 66.66% 83.33%
With 7	1/7 2/7 3/7 4/7 5/7 6/7	0.142857 0.285714 0.428571 0.571428 0.714285 0.857142	14.28% 28.57% 42.85% 57.14% 71.42% 85.71%
With 8	1/8 2/8 3/8 4/8 5/8 6/8 7/8	0.125 0.25 0.375 0.50 0.625 0.75 0.875	12.5% 25% 37.5% 50% 62.5% 75% 87.5%
With 9	1/9 2/9 3/9 4/9 5/9 6/9 7/9 8/9	0.1111 0.2222 0.3333 0.4444 0.5555 0.6666 0.7777 0.8888	11.11% 22.22% 33.33% 44.44% 55.55% 66.66% 77.77% 88.88%

 

Multiplication of numbesr with a series of similar digits in multiplier