23698×999 without actual multiplication
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In vedic mathematics,
The sutra 'Ekanyuna poorvena' (which gives the meaning 'one less than the previous' or 'one less than one before'), can be used find result of multiplication of a no. by 10^n - 1 (i.e.., 9, 99, 999, 9999.…) ; n€N .
Follow below steps:
1. Put as many zeroes to the multiplicand as there are nines in the multiplier
2. From the Result, subtract the multiplicand and get the answer.
23698* 999
= 23698000 - 23698
= 23674302
;)
Hope it helps
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