(picture math): http://sheppardsoftware.com/mathgames/earlymathbugabalooShoes.htm
(addition/subtraction): http://sheppardsoftware.com/mathgames/fruitshoot_subtraction.htm
(multiplication/division): http://sheppardsoftware.com/mathgames/popup/popup_division.htm
(matching): http://sheppardsoftware.com/mathgames/matching/matching_addition.htm
(math mahjong): http://sheppardsoftware.com/mathgames/mahjong/mahjongMath_addition_easy.htm
(missing numbers): http://sheppardsoftware.com/mathgames/matching/AdditionX.htm
(fractions - tutorial): http://sheppardsoftware.com/mathgames/fractions/fracTut1.htm
(simple fraction matching): http://sheppardsoftware.com/mathgames/fractions/memory_fractions1.htm
(adding fractions): http://sheppardsoftware.com/mathgames/fractions/FruitShootFractionsAddition.htm
(subtracting fractions): http://sheppardsoftware.com/mathgames/fractions/FruitShootFractionsSubtraction.htm
(decimals - tenths): http://sheppardsoftware.com/mathgames/decimals/DecimalModels10.htm
(decimals - hundreths): http://sheppardsoftware.com/mathgames/decimals/DecimalsModels.htm
(adding decimals): http://sheppardsoftware.com/mathgames/decimals/matchingDecimalsAdd.htm
(time): http://sheppardsoftware.com/mathgames/earlymath/on_time_game1.htm
(money): http://sheppardsoftware.com/mathgames/earlymath/BPGreaterCoins.htm
(money): http://sheppardsoftware.com/mathgames/earlymath/PBEnoughCoins.htm
(counting): http://sheppardsoftware.com/mathgames/earlymath/BalloonCount20.htm