http://en.wikipedia.org/wiki/Abacus (5 years and 2676 days ago)
abacus - created by lincemiope
Math 2 Photography Contest
Pound, shilling and pence  by friiskiwi 9144 views - final score: 69.8% | Correct answer  by Remsphoto 8390 views - final score: 68.4% | My first scientific calculator  by MarcosSanchez 10535 views - final score: 66.5% |
Bills, bills and more bills  by friiskiwi 5526 views - final score: 65.6% | Counting Change?  by kyricom 5802 views - final score: 65% | Basics  by kyricom 2584 views - final score: 64.6% |
old and the new  by meatman 4132 views - final score: 63.3% | Just another Day at Work  by Alan2641 5027 views - final score: 62.9% | everest z5  by lincemiope 3566 views - final score: 62.8% |
Geometry  by friiskiwi 2925 views - final score: 62.3% | abacus  by lincemiope 2935 views - final score: 61.7% | Jai Prakash Yantra - Janthar Manthar, Jaipur India  by awinibhat 11353 views - final score: 60.7% |
Sundial  by awinibhat 4782 views - final score: 59.9% | chess  by lincemiope 5463 views - final score: 58.3% | PI  by teecee 2011 views - final score: 54.3% |
Howdie Guest!
You need to be logged in to rate this entry and participate in the contests!
LOGIN HERE or REGISTER FOR FREE
Pxleyes
Photography and photoshop contests
We are a community of people with
a passion for photography, graphics and art in general.
Every day new photoshop
and photography contests are posted to compete in. We also have one weekly drawing contest
and one weekly 3D contest!
Participation is 100% free!
Just
register and get
started!
Good luck!
Follow us:
© 2015 Pxleyes.com. All rights reserved.
Oh! Now you're back in time ...
not believe.
I miss from China for 10 years, but all used the 'schedule, and I had also learned how to make simple calculations
the binary system is very convenient, and is the basis of computing
thnak for the comment
Howdie stranger!
If you want to rate this picture or participate in this contest, just:
LOGIN HERE or REGISTER FOR FREE