These colourful, visual representations of numbers were inspired by a digital clock. The images get more interesting as the numbers increase, so take your time or use the forward button to move on. Click 'About' on the bottom left to get a deeper understanding of the process.
In this lesson, you will learn about the negative exponent rule, negative exponent definition, multiplying negative exponents, and how to work with negative powers.
Use this virtual scale to strengthen your understanding of numerical expressions and equality. Instructions for exploring this tool are below the scale.
Students learn how writing an algebraic equation can help solve a real-life problem, such as when to buy cat food. Teacher resources accompany this video
High School Algebra takes students on a mathematical journey that starts with evaluating simple single variable expressions, and challenges them with graphing multi-variable equations. Teacher resources accompany each video
Purplemath's lessons are listed in groups according to the general meanings of beginning, intermediate, and advanced algebra. If you are not sure where to find your topic, please try the Search
We've heard of outlawed religious tracts and revolutionary manifestos and censored and burned books, but as strange as it may seem, some numbers have also been considered dangerous enough to ban. This video discusses illegal numbers.
What do Euclid, 12-year-old Einstein, and American President James Garfield have in common? They all came up with proofs for the famous Pythagorean theorem, one of the most fundamental rules of geometry. Related Lesson
