Addition
http://www.sheppardsoftware.com/mathgames/earlymath/bugabalooShoes.htm
http://www.ixl.com/math/grade-1/addition-with-pictures-sums-to-10
http://www.ixl.com/math/grade-1/addition-sentences-sums-to-10
http://www.ixl.com/math/grade-1/ways-to-make-a-number-addition-sentences
http://www.ixl.com/math/grade-1/addition-facts-sums-to-10
Subtraction
http://www.sheppardsoftware.com/mathgames/fruitshoot/fruitshoot_subtraction.htm
http://www.ixl.com/math/grade-1/subtracting-with-pictures-numbers-up-to-10
http://www.ixl.com/math/grade-1/subtraction-sentences-numbers-up-to-10
http://www.ixl.com/math/grade-1/ways-to-make-a-number-subtraction-sentences
http://www.ixl.com/math/grade-1/ways-to-subtract-from-a-number-sentences