Review previous material before beginning to work on new, more advanced, assignments. Then read the new material that relates to your assignment.

Review your lecture notes from class. Fill in any notes you didn't follow easily, using the text, an instructor, or a classmate. You'll avoid the frustration later of not understanding your notes. Add any additional info from your book that will help you better understand your class notes. Review - and mark - the most important parts of the lecture. 

Work on your homework as neatly as possible. This makes it much easy to check for errors, to review later, or to get help with mistakes in your work.

Write down each step of each homework problem. Don't skip steps by trying to "do it in your head." Put into your own words what you're actually doing (especially for multi-step problems). If you can't say it, you probably can't do it.

Understand why each problem is solved in the way it is. Ask questions until you get it. Don't just memorize mechanical steps to solve problems.

Always check each answer in the back of the book before doing more problems - you don't want to get a bunch of problems wrong, reinforcing that method. If you need more practice, get answers - and solutions - for even-numbered problems (as well as additional problems) in Solutions Manuals in the Learning Center.

After finishing your homework, ask yourself what you learned and write down the important learned concepts.

Make up note cards with hard to remember math facts and rules.

Do NOT get behind in your math homework.  An average student should work on math 1-2 hours each day to earn an average grade of C. If you have difficulty with math or want to earn a better grade, you must be prepared to set aside more time each week. 6-9 hours of homework and study time would be the minimum amount you need to plan for in math courses.