We are currently working on identifying number patterns using a hundreds chart. These two activities online may help students review at home.
http://www.softschools.com/math/hundreds_chart/games/
http://www.softschools.com/math/hundreds_chart/missing_numbers_game/
http://www.abcya.com/one_hundred_number_chart_game.htm
http://www.abcya.com/interactive_100_number_chart.htm
http://resources.oswego.org/games/DogBone/gamebone.html
http://www.primaryresources.co.uk/online/numbersquare.swf
http://www.amblesideprimary.com/ambleweb/mentalmaths/countersquare.html
http://www.ballard.ws/projects/100-hundreds-table-math-game/100-hundreds-table.htm
http://www.fuelthebrain.com/Game/play.php?ID=7
http://nlvm.usu.edu/en/nav/frames_asid_337_g_2_t_1.html?from=category_g_2_t_1.html