Dino Numbers http://dynotech.com/numbers.htm
Educational game for ages 7-12. Derik the Dinosaur teaches basic math skills of addition, subtraction, multiplication, and division.
EM Teachline Software http://arithmetic.emteachline.com/
Allows a teacher to create custom quizzes, exams, and homework assignments for arithmetic calculations practice and properties of math operations. Includes free trial version.
GraspMath http://www.graspmath.com
Provides interactive CD and video courses in Elementary Math, Algebra, Geometry, High School Exit Exam Prep, Trigonometry, Calculus and TI Calculators.
IntelliTools http://www.intellitools.com/
Offers a series of educational software products for students, including IntelliMathics to reinforce math skills for K-8 grades.