•  Super Math Adventure (Muliplication) 
   Press Play, then select multiplication practice for 6 -12.
   http://www.multiplication.com/games/play/math-multiplication-adventure

•  The Number Conundrum (adding decimals)
   http://www.mathplayground.com/number_conundrum_decimals.html

•  Locate the Aliens (identifying coordinates)
   http://www.mathplayground.com/locate_aliens.html 

•  MultipliACTION (multiplication practice)
   http://cemc2.math.uwaterloo.ca/mathfrog/english/kidz/mult6.shtml

•  Granny Grand Prix (multiplication practice)
   http://www.multiplication.com/games/play/granny-prix