Learn basic mathematics. One of the five sections of the GED exam is mathematics. To pass the test, you must be familiar with math up to basic algebra. If you do not know multiplication tables, learn them first. Memorize them. It's the only way to learn, and you will not be able to proceed until you know them. Next become familiar with percents, fractions and decimals. Be able to manipulate numbers easily between the three ways to express numbers. Know basic algebra. If you have the other basics down pat, then algebra will be easy.
Know how to read at an eighth-grade level. If you do not know, you may want to attend adult basic education classes, usually at a high school, community center or community college in your town. If you have a reading difficulty, staff members will work with you to overcome it.
Learn how to write English. Learn how to write a sentence, a paragraph and an essay. Know when to capitalize a word, how to use punctuation and how to spell. Most jobs require these skills, so learn them now and pass the GED with ease. To pass the GED, you must write a 250-word essay. If you know basic English, you can write it with no problem.
Know some basic science principles. Most of the science part of the test is reading and then answering questions about what you just read, but you must have some basic knowledge to understand the reading.
Understand that reading is the most important part of the social studies area of the exam. Again, you will read several paragraphs about a social studies topic and then answer questions about it.
Buy a study guide. "Barron's Study Guide" (see resources below) is probably the best on the market. You can find a free online guide in resources below, but since the GED examination is on paper, your study guide and practice is best done on paper as well. If you diligently complete the study guide, you will pass the GED.