adding and subtracting integers

when you add a positive to a negative you make the negative a positive and subtract then depending on how  big the negative is you will have a positive or negative.  if the negative is less than the positive as a positive then it will be positive but if the negative as a positive is more than the positive then the answer will be negative.

http://bit.ly/1S3P4 this is my first http://www.funbrain.com/cgi-bin/nl.cgi?A1=c&A2=4&A3=-4&A4=[-4][-2][-2][1]&A11=3&A12=5

this is my second game