To do a quick keyword search, here are some keywords you might try:
These free online materials from Goodwill Community Foundation cover basic technology, literacy, and math skills. Separate sections focus on Everyday Life, Math & Money, Computer Training, and Work & Career.
Ésta página web tiene tutoriales para practicar la aritmética, el álgebra, y la geometría.
Basic mathematics is designed for anyone who needs a basic understanding of mathematics concepts and operations. Instruction is carefully sequenced to follow a logical order. Concepts are presented in clear, simple terms.
Salman Khan has recorded 1200+ high qulaity YouTube videos covering everything from basic arithmetic, pre-algebra, and geometry to differential equations, and physics. The video library is divided into categories for easy searching.
BBC Skillswise is an excellent site for basic math and English skills. It includes factsheets, worksheets, quizzes, and games to help you improve your skills. (Note that this site is British and uses British spelling rules.)
NeoK12 is a collection of educational videos from all over the web arranged by broad subject area. Physical science, life science, earth and space, math, social studies and language arts are all covered. The site provides appropriate resources for students at all grade levels.
Free, 24/7 access for Madison College students, faculty and staff to hundreds of curriculum-focused videos. Create an account, log in, and start searching. (Have your Madison College username and password ready, if viewing from off campus.)
Need to build up your math skills? Here is just a sampling of Films on Demand titles that can help you.