I am having great difficulty with this. I am 47 and want desperately to acquire my GED so I may improve myself and my life options. I find this very confusing and know I cant move to algebra and geometry without this skill level. I have watched the videos and follow the steps but it seems the longer the problem the further from the correct answer I am.I don't understand what I am doing wrong. When I go to the hints I find it is some simple mistake like reading the signs wrong or adding when I should subtract however I have slowed down and repeated the lessons over and over and still to no end I keep missing something. Could you please help by making a video that first shows the signs before making me guess ti add or subtract. Please. I really want this. I need this. I wish I could tell kids how hard it is to do this later and all at once instead of grade by grade. I have no high school so I have a mountain in front of me. I wish there were a free online course for older people such as myself where we could pass a grade and maintain that credit and so on to reach a diploma. This way I have to learn the two years of middle school over so I can do the three years of high school to take one big test. I just want to get a job worth having. Kids don't even know. Sometimes just to get a job as a housekeeper making beds and scrubbing toilets they require a GED for the job. 

As a child in school, you pass a level and move on. as a drop out you have to, as in my case learn 5 years of math to take one test.