Math is a four letter alphabet! + - * / No upper case, no lower case. Just 4 letters. Why is it then so difficult to write in...

https://www.youtube.com/watch?v=0qo78R_yYFA

Here is a very useful app to study for the GED test. Check out the link below: https://play.google.com/store/apps/details?id=com.pocketpr...

http://www.gedstudyguide.org/free-ged-practice-tests/