Designed for elementary and middle school students	Evens and Odds   Consider the numbers from 1-500 inclusive.  What is the difference between the sum of all the even numbers and the sum of all of the odd numbers?
May 8, 2006
Past Problems
	E-mail Solutions to: brainteaser@umassd.edu
	Names will only be posted for students in elementary and middle school
	Correct Solutions
	Kevin Dong. Westlake Elementary School, Santa Cruz, CA Willie Dong. Westlake Elementary School, Santa Cruz, CA Phillip Ai. Hammarskjold Middle School, East Brunswick, NJ Keenan Marchesi. Freetown Lakeville Middle School, Lakeville, MA Meredith Flury. Beacon Elementary School, Hilliard, OH Neil Chen Kingsbury Elementary School, Bayside, NY David Lu. P.S.139Q, New York City, NY Katie Bealka. Freetown Lakeville Middle School, Lakeville, MA Alanna Pappas. Freetown Lakeville Middle School, Lakeville, MA David Shi. JLS Middle School, Palo Alto, CA Bilyana Tzolova. Easterly Parkway Elementary, State College, PA Jeremy Jimenez. Carwise Middle School, Palm Harbor, FL Brian Chan. Summit Middle School, Coquitlam, BC, Canada Sam Craig. Clint Small Middle School, Austin, TX Omar Magdy Essafty. Alexandria, Egypt Ally Dmitruk. Freetown Lakeville Middle School, Lakeville, MA Matt Santos. Freetown Lakeville Middle School, Lakeville, MA Greg Misodoulakis. Freetown Lakeville Middle School, Lakeville, MA Ian Trombly. Freetown Lakeville Middle School, Lakeville, MA Christine Soh. Eldorado K-8, Superior, CO Jaimie Fan. Fairview Elementary School, Mountain Top, PA Jessica Fan. Fairview Elementary School, Mountain Top, PA Tony Gu. Northwest Junior High School, Coralville, IA Karinna Loo. Marengo Elementary, South Pasadena, CA Stephen Howard. Richton Jr/Sr High School, Richton, MS Scott Howard. Richton Jr/Sr High School, Richton, MS Yvonne Lei. Hope Valley Elementary School, Durham, NC Collin Rousseau. Freetown Lakeville Middle School, Lakeville, MA Keigo Suzuta. Damine E.S. Shitara Aichi, Japan Hirokazu Takesita. Damine E.S. Shitara Aichi, Japan Toshiki Goto. Damine E.S. Shitara Aichi, Japan Haruka Kanda. Damine E.S. Shitara Aichi, Japan Kodai Yoshiyama. Damine E.S. Shitara Aichi, Japan Chandru Vittal. Ida Price Middle School, San Jose, CA Samantha VanEtten. Wellsville Middle School, Wellsville, NY Mason Lilly. Elkview Middle School, Elkview, WV Caroline Clauson. Freetown Lakeville Middle School, Lakeville, MA Amy DiGiammo. Freetown Lakeville Middle School, Lakeville, MA Mridul Singh. Kendriya Vidyalaya Happy Valley, Shillong, India Tony DiMino. North Pocono Middle School, Moscow, PA Loryn Moynihan. Freetown Lakeville Middle School, Lakeville, MA Tham Yee Ching. CHIJ St. Nicholas Girls' School, Singapore Stephanie Carvalho. Freetown Lakeville Middle School, Freetown, MA Anna Shang. Balboa Middle School, Ventura, CA

 

 Last Updated On: 5/15/06