These street signs are near the Timbers (old folks home) in Shorewood, Illinois.

The street signs say...

+--------------+ | Residential | | Speed Limit | | 25 | | Unless | | Otherwise | | Posted | +--------------+ +--------------------+ | Sprinkling Allowed | | 6am to 10am | | 6pm to 10pm | | Odd/Even | | Year Round | +--------------------+the numbers are: 25 6 10 6 10 the math is: (6 - log(10)) * (6 - log(10)) = 25 rsPhiEval: (log(10) + sqrt(sqrt(25))) / (6 + 6 - 10) = Phi * Phi is the golden ratio and it approximates 1.61803399 rs37Eval: 25 + (10 - 6)! / sqrt(10 - 6) = 37 * Whyrs37Eval? 37 Heaven @ http://thirty-seven.org rs42Eval: sqrt(25 + (10 - 6)!) * 10_{6}= 42 * 42 is the "Answer to Life, the Universe, and Everything" rsAgeEval: 6 * 10 - 25 % (10 - 6) = 59 * MathBabbler was 59 years young when he found these signs. rsCardinalityEval: sqrt(25) * 6 / 6 * 10 / 10 = 5 * There are five numbers in these signs. off-by-one math: sqrt(25 * 6 - 6) - log(10) = 10+1 off-by-one rsStateEval: 25 - 6 - 6 + 10 - log(10) = 21+1 * Illinois was the 21st state admitted to the Union.

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

**Created:** 08 August 2016 (posted 09 August 2016)

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