Note: This is not a conventional BARS (Basic Arithmetic Road Sign). MathBabbbler collects prime numbered speed limit signs and that is why the picture used in this BARS was taken; however, beyond the 5 MPH sign is a 25 MPH sign and MathBabbler realized that 25 was 5-squared. These speed limit signs are at Carlsbad Caverns National Park in New Mexico.

The speed limit signs say...

diamond sign: 5 MPH rectangle sign: 25 MPHthe numbers are: 5 25 the math is: sqrt(25) = 5

**Creator:** Gerald Thurman
[gthurman@gmail.com]

**Created:** 02 August 2009

This work is licensed under a Creative Commons Attribution 3.0 United States License.