Math Olympiad for Elementary & Middle Schools
Math Olympiad for Elementary and Middle Schools (MOEMS) is a math competition for elementary and middle schools. This competition consists of 5 tests  one each in the month of November, December, January, February, and March. Each test consists of 5 problems with a time limit of 25 minutes. The elementary contest is open for anyone in 5th grade or lower. The middle school contest is open for 6th, 7th, and 8th graders. More information about this contest can be found at MOEMS website.
The video series below covered some of the most popular topics in the MOEMS competitions.
If you are interested in practicing with old MOEMS tests, they are available on their bookstore or other retailers:

Math Olympiad Contest Problems Volume 1

This volume consists 400 challenging problems and ingenious solutions for the first 16 years, all at the Division E level from our contests 1979 through 1995

Complete solutions (frequently multiple solutions and follow up questions)


Math Olympiad Contest Problems Volume 2

This consists of 425 problems from the contests from 1995 to 2005

50 Division E contests and 35 Division M contests

Stepbystep solutions to all problems; Hints, strategies, and percents correct for all questions; Multiple solutions for most problems


Math Olympiad Contest Problems Volume 3

This consists of 400 problems from the contests from 2005 to 2013

40 Division E contests and 40 Division M contests

Stepbystep solutions to all problems


Creative Problem Solving in School Mathematics

It uses about 400 challenging nonroutine problems to extend elementary and middle school mathematics into such topics as sequences, series, principles of divisibility, geometric configurations, and logic.
