À la salle d'ordinateurs:

• Number Invader (percent)
  http://www.mathplayground.com/balloon_invaders_percent.html
• Percent Matching
  http://www.sheppardsoftware.com/mathgames/percentage/MatchingPercentNumber.htm
• Decention (fractions, decimals, percent)
  http://www.mathplayground.com/Decention/Decention.html
• Adding Fractions
  http://www.mathplayground.com/fractions_add.html
• Fraction Speedway 
  http://www.mathplayground.com/ASB_Speedway.html
• Decimal Math Games 
  http://www.math-play.com/decimal-math-games.html