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Multiply any number by any number of 9.
(for example, 36 x 99)
First of all, Count how much "9" available here and place that amount of "0" at the right side of the another number. In the example, there are two "9" available. So after 36, place 00, ;) then subtract the number from this new one. after subtracting it, we get the result (3600-36 = 3564)
Similarly, 243 X 99 = (24300-24) = 24276
5362 X 999 = (5362000-5362) = 5356638
Thanks to all.
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