99x99=?
Answer me in 30 seconds
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Answer / ravichandra
well.. it's very simple with vedic mathematics.
99*99 =
1. write down 99-1=98 first
2. so now we have 98. and now see what addition to each
digit of 98 makes the sum '9'.
3) in 98 if we add zero to the digit 9 then the sum will be
9.write down this zero next to the 98. so far we have 980
4) now lets take 8 in 98. if we add 1 to the 8, the sum will
be 9. so now write down this 1 after 980.
5)now the answer is 9801.
explaination is long. but we say answer in 2 seconds for any
9 series multiplications.
| Is This Answer Correct ? | 22 Yes | 6 No |
Answer / himanshu
99 x 99
(100-1) x (100-1)
(100-1)^2
100x100+1-2x100
10000-200+1
9801
| Is This Answer Correct ? | 16 Yes | 4 No |
Answer / chandrasekhar d
99*99=
9*9=81
81
+ 81
891
891
+ 891
9801
| Is This Answer Correct ? | 12 Yes | 3 No |
Answer / sharada v
99*99
solution
99*100 = 9900
less 1*99= 99
_______
9801
| Is This Answer Correct ? | 9 Yes | 2 No |
Answer / hari kumar v
99
99
_______
9801
_______
unit place numbers 9*9=81 (8 carry to next step)
cross multiply(9*9)+(9*9)+8=162+8=170 (17 carry to next step)
after units place numbers 9*9=81+17=98
| Is This Answer Correct ? | 9 Yes | 3 No |
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