Future Experts come here and share their knowledge base and concepts with each other. Every article submitted is reviewed by experts. Nickels are awarded to articles in terms of authenticity, relevance, clarity and presentation.
A few methods for speed:When performing any of these multiplication algorithms, the multiplier should have as many zeroes prepended(prefixed) to it as there are digits in the multiplicand. This will provide room for any carrying operations. For instance, when multiplying 366 × 7, add one zero to the front of 366 (write it "0366"); when multiplying 985 × 12, prepend two zeroes to 985 ("00985"). Each digit but the last, including the prepended zeroes, has a neighbor, i.e., the digit on its right.To multiply by 12: Starting from the rightmost digit, double each digit and add the neighbor. This gives one digit of the result. If the answer is greater than 1 digit simply
more ...
submitted by vagee (133 m) on 31 May 2007 16:41:09 IST (3 comments 517 views)
