First work on the addition game, then you can switch and practice with subtraction!
Adding:
http://www.mathplayground.com/fractions_add.html
Subtracting:
http://www.sheppardsoftware.com/mathgames/fractions/FruitShootFractionsSubtraction.htm
First work on the addition game, then you can switch and practice with subtraction!
Adding:
http://www.mathplayground.com/fractions_add.html
Subtracting:
http://www.sheppardsoftware.com/mathgames/fractions/FruitShootFractionsSubtraction.htm