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Vedic Math / Quicker Math / Math Tricks : 
MULTIPLICATION BY 9 : Step I: Subtract the righthand figure of the long number from 10. This gives the righthandIfirgute of the answer.Step II: Taking The next digit from right, subtract it from 9 and add the neighbour on its right. Step III: At the last step, whentou are under the zero in front of the long number, subtract one from the neighbour and use that as the lefthand figure of the answer. Ex 1 : 8576 X 9 = ?
Step I. Subtract the 6 of 8576 from 10, and we have 4 of the answer. Step II. Subtract the 7 from 9 (we have 2) and add the neighbour 6; the result is 8. Step III. (95)+7 = 11; put. 1 under the line and carry over 1. Step IV. (98)+5+1 (carried ove) .= 7, put it down. Step V (Last step). We are under the lefthand zero, so we reduce the lefthand figure of 8576 by one, and 7 is the lefthand figure of the answer Thus answer is 77184. We don't suggest you to give much emphasis on this rule. Because it is not very much easy to use. Some times it proves very lengthy also. See another method Practice Question Solve the following: (1) 34 X 9 = ? (2) 569 X 9 = ? 3) 1328 X 9 = ? 4) 56493 X 9 = ? (5) 89273258 X 9 = ? Ans : (1) 306 (2) 5121 (3) 11952 (4) 508437 (5) 803459322 Another Trick Step I : Put a zero at the right end of the number; ie, write 85760 for 8576. Step II: Subtract the original number from that number. Like 85760  8576 = 77184 Share new methods & leave your comments below... Click here to top 