When learning vocabulary, or to study for a quiz, one of the most common practices has been to make flashcards. This is done in foreign language classes, English classes, and other classes where learning vocabulary is necessary. Some teachers require their students to make flashcards.
This website contains flashcards and games to help students improve their math skills interactively. It also contains worksheets that students can print and work on. The website also has the answer sheets so students can check their work. There is also a "homework helper" tab that allows you to input your problem and answer and it will help you figure out if you are correct.