An interactive collection featuring arithmetic and fractions. Correct answers are given.

Offers self-marking arithmetic exercises and forms to download and print. Answers are included, and different levels of difficulty can be set.

Offers three levels of difficulty in basic arithmetic, with a choice of whole numbers or fractions.

Weekly math quiz, plus math baseball and other games.

Interactive math puzzles let students test their addition, subtraction, multiplication, geometry, division, and algebra skills.

Weekly contest for elementary, middle school, algebra, and geometry students. Includes an archive of past problems.

Offers math games that help you learn addition, subtraction, and multiplication.

Offers the contests for problem of the week, and elementary brain teaser, with links to the White House Math Challenge. Includes contest history, rules, and an archive of past problems.

Practice taking the TIMSS test.

Take sample quizzes to test your knowledge.