Integer Practice:
http://www.mathplayground.com/ASB_OrbitIntegers.html
http://www.mathgames.com/skill/6.57-add-and-subtract-integers
http://www.softschools.com/math/integers/integer_number_line/
http://www.softschools.com/math/integers/integer_addition_subtraction_using_integer_number_line/
http://www.softschools.com/quizzes/math/adding_and_subtracting_integers/quiz1034.html
http://www.softschools.com/quizzes/math/multiply_integers/quiz3215.html
http://www.softschools.com/quizzes/math/adding_integers/quiz3279.html
http://www.softschools.com/quizzes/math/subtracting_integers/quiz3280.html
http://www.softschools.com/quizzes/math/multiply_and_divide_integers/quiz3288.html
Rational Number Practice:
http://www.softschools.com/math/classifying_numbers/
http://www.softschools.com/math/rational_numbers/ordering_rational_numbers/
http://www.mathplayground.com/locate_aliens.html
http://www.softschools.com/math/rational_numbers/
http://www.softschools.com/quiz_time/math/arithmetic/theme2.html
http://www.studyzone.org/mtestprep/math8/a/numbersp.cfm
http://www.mathgames.com/skill/8.9-identify-rational-and-irrational-numbers