Matching Game

http://www.sheppardsoftware.com/mathgames/measurement/MeasurementMeters.htm 

Metric Millionaire

https://www.quia.com/rr/96635.html 

Measure Length

https://www.funbrain.com/games/measure-it 

Sub Shop 

Equivalent Fractions

http://www.mathplayground.com/Triplets/Triplets.html

http://www.math-play.com/equivalent-fractions-game.html

http://www.fractionmonkeys.co.uk/activity/

Compare Fractions

http://www.mathgames.com/skill/1.12-compare-fractions-same-numerator-or-denominator

http://www.mathplayground.com/fractions_compare.html

http://www.mathplayground.com/ASB_TugTeamFractions.html

Khan Academy

Explore the world of fractions! Learn from the lessons, then practice what you've learned!

Practice addition, subtraction, multiplication and division facts.

www.mobymax.com

http://www.factmonster.com/math/flashcards.html

http://www.mathplayground.com/multiplication_division_games.html

http://www.multiplication.com/games/all-games