Q&A #546

Teachers' Lounge Discussion: Mental calculation in maths

T2T || FAQ || Teachers' Lounge || Browse || Search || T2T Associates || About T2T

View entire discussion
[<< prev] [ next >>]

From: Loyd

To: Teacher2Teacher Public Discussion
Date: 2003050916:13:15
Subject: Re: remembering PI to 10 places

In the past, I programed in FORTRAN, BASIC, PASCAL and C. I often used the following for PI: Write down the first three doubly odd digits as: 11 33 55. Divide 355 by 113 (355/113) and you get 3.14159292 which is pretty close to pi. Good enough for most work. Corrected a digit in second post.

Post a reply to this message
Post a related public discussion message
Ask Teacher2Teacher a new question

[Privacy Policy] [Terms of Use]

Math Forum Home || The Math Library || Quick Reference || Math Forum Search

Teacher2Teacher - T2T ®
© 1994- The Math Forum at NCTM. All rights reserved.