FREE online how to Video Tutorials, examples, and solutions for math problems on everything, literally all aspects of math, AKA quantifiable logic, a philosophy constrained to universal consistency and quantitative analysis, not to mention of course algebra, trigonometry, calculus, etc. Select the subject area you are interested in and get help or how to tutoring right now, 24 hours per day, 365 days per year. Enjoy!
Below are explanations of mathematical tricks you can use to perform some operations very quickly or more easily than brute force iterative process, i.e. out smarting the problem.