Khan Academy
Khan Academy: Praxis Core Math: Algebraic Word Problems Lesson
A review of simple word problems that just involve basic arithmetic operations and a single variable. Includes examples and practice questions.
Khan Academy
Khan Academy: Praxis Core Math: Circles Lesson
A basic review of circles and how to calculate the circumference, radius, diameter, and area. Includes practice questions.
Math Slice
Math Slice: True False Slice Special Test
Test student knowledge of basic logic with this short test. Assessment is scored immediately online. Could be used as an assessment tool.
Other
Dans Math: Lessons: Intermediate Algebra
College professor Dan Bach presents a review of algebra concepts, including factoring, quadratic equations, and graphing parabolas. The examples are detailed, but easy to follow. This is a good site for reviewing before tests and quizzes.
Doina Popovici
Math Play: Basic Shapes Game
Recognize several basic shapes in this online game that test your knowledge of shapes!
McGraw Hill
Glencoe Mathematics: Online Study Tools: Ratio, Proportion, and Percent
Students show comprehension of basic arithmetic skills. The online test assesses scholars on ratios, proportions, and percents.