Our family found this math problem several years ago and each of us did it - and it worked for everyone, even if we didn't have change in our pocket. It's just a fun little thing to do.
your age x 2
+ 5
x 50
- 365
+ the loose change in your pocket under $1.00
+ 115
+ 5
x 50
- 365
+ the loose change in your pocket under $1.00
+ 115
=
The first 2 figures in the answer are your age
the last 2 are the change in your pocket