In the field of assistive technology, math programs are not as widespread as reading and writing tools. Webmath is a free site that students, teachers, and others can use to work out math problems, ask a math expert, or create online tests and assignments for students.
The material ranges from general K-8 math (including money skills) to algebra, geometry, trigonometry, calculus, and physics. It is not designed specifically for individuals with disabilities, but can be accessed by those who use a computer and who may have more success using keyboard or mouse access than using a pencil and paper. The site can be used to solve problems or to create extra practice. It is easy to manipulate and is free.