1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Fast operations

  1. Nov 7, 2003 #1
    I know that there are some shortcuts to make math operations. For example
    When you multiply 11 and another number (23 for exaple) you just write those two numbers like this:

    2 3

    and then sum them "2+3=5" and the result you write it in the middle:
    2 5 3

    and that's it.

    Can you help me and write those kind of shortcuts, it would really help, thanx :smile:
  2. jcsd
  3. Nov 8, 2003 #2
    You might want to look for a book entitled, The Trachtenberg Speed System of Basic Mathematics.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Fast operations
  1. Fast Multiplication (Replies: 9)

  2. Fibonacci Operations (Replies: 5)

  3. Operator Fields (Replies: 1)