### BAD::May 2011 Basic Arithmetic Dates

 `5/11` contains the following prime dates: ```5/2/11, 5/3/11, 5/5/11, 5/7/11, 5/11/11, 5/13/11, 5/17/11, 5/19/11, 5/23/11, 5/29/11, 5/31/11```. These BADs need to be checked for correctness. ```summation(5,11)=56 ```
```05/01/11:  5*11-1=54  [MathBabbler turned 54 during May 2011]
05/02/11:  5*11-2=53  [MathBabbler's age on this date]
05/03/11:  5+3!=11 ... summation(5,11)-3=53  [MathBabbler's age on this date]
05/04/11:  114=5
05/05/11
05/06/11:  5+6=11 ... 6=115
05/07/11:  7!/5!+11=53  [MathBabbler's age on this date]
05/08/11:  5*11-cuberoot(8)=53 [MathBabbler's age on this date]
05/09/11:  5+sqrt(9)!=11
05/10/11
05/11/11
05/12/11
05/13/11:  5*11-13=42  [the "Answer to Life, the Universe, and Everything"]
05/14/11
05/15/11:  11(15-11)=5
05/16/11:  11sqrt(16)=5
05/17/11
05/18/11
05/19/11
05/20/11
05/21/11
05/22/11
05/23/11
05/24/11:  sqrt(1124)=5
05/25/11
05/26/11:  5+26+11=42  [the "Answer to Life, the Universe, and Everything"]
05/27/11:  summation(5,11)-cuberoot(27)=53 [MathBabbler's age on this date]
05/28/11
05/29/11
05/30/11:  30/5=115
05/31/11:  5!+31-11=140  [MaxTweetLength]
```