Ratio, Rates, Percents and Proportions

This page gives a very thorough lesson, with examples, of how to solve a math problem that concerns the percent of increase or decrease.

AAA Math features a comprehensive set of interactive arithmetic lessons. Unlimited practice is available on each topic which allows thorough mastery of the concepts. A wide range of lessons (Kindergarten through Eighth grade level) enables learning or review to occur at each individual's current level. Immediate feedback prevents practicing and learning incorrect methods, which is a common result of traditional homework and worksheets. Practice can continue as long as desired in a non-threatening format which helps build self-esteem and confidence.

Flashcards from StudyStack.com.

In this video, Salman Khan of Khan Academy explains growth by percentages.

In this video, Salman Khan of Khan Academy demonstrates ordering numeric expressions.

In this video, Salman Khan of Khan Academy gives an introduction to percent and decimals.

Great site to use to get a scientific calculator to solve or check your problems you are working on. Larger and easy to use.

First page of a series of lessons on proprotions and ratios, with a few solved examples.

Good examples of how to solve rate of work problems.

Explains, with examples, how to solve word problems using the distance formula of D=rt