Math Games
Fraction Games:
http://www.vectorkids.com/vkfractions.htm
http://www.mathplayground.com/Scale_Fractions.html
http://www.mathplayground.com/puzzle_pics_fractions.html
http://mrnussbaum.com/tonyfraction/
http://www.oswego.org/ocsd-web/games/fractionflags/fractionflags.html
Divisibility Rules:
http://www.math4childrenplus.com/divisibility-classroom-pirate-game/
https://www.ixl.com/math/grade-4/divisibility-rules
Practice with Multiplication Facts:
http://www.mathplayground.com/math_monster_multiplication.html
http://www.mathplayground.com/puzzle_pics_multiplication.html
http://www.mathplayground.com/spaceracer_multiplication.html
Here are some new ones added on 11/4. If you find another game on Hooda math you want to play, that is fine as long as it is helping you practice multiplication.
http://www.hoodamath.com/mobile/games/mathtimedtests.html
http://www.hoodamath.com/mobile/games/multiplicationskydiver.html
Thank you Andrew, Charlie for the new math game suggestion: This is a really fun one!
http://www.multiplication.com/games/play/knock-down-multiplication