Inverse Matrices Practice
Algebra II Topics
http://www.maths.usyd.edu.au/u/UG/JM/MATH1014/Quizzes/quiz8.html
http://www.maths.usyd.edu.au/u/UG/JM/MATH1002/Quizzes/quiz8.html
http://www.thatquiz.org/tq/previewtest?I/I/G/I/12231328500477
http://www.glencoe.com/sec/math/studytools/cgi-bin/msgQuiz.php4?isbn=0-02-825178-4&chapter=4&lesson=5
http://www.sophia.org/inverse-matrices-tutorial
http://swh.springbranchisd.com/LinkClick.aspx?fileticket=dcOAxXqUVf8%3D&tabid=16646
videos
http://www.youtube.com/watch?v=kNWCrlQX-rk
https://www.khanacademy.org/math/algebra/algebra-matrices/inverting_matrices/v/inverse-matrix--part-1
http://www.onlinemathlearning.com/matrix-inverse-determinant.html