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www.purplemath.com/

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Lessons and Tutoring - Reviews ... There are loads of math lessons, including ...

www.purplemath.com/modules/ordering.htm

An Ordered Listing of the Lessons. The Purplemath lessons have been written ...

www.purplemath.com/modules/meanmode.htm

Explains how to compute the mean, median, mode, and range of a list of ...

www.purplemath.com/modules/fcns.htm

Discusses the concept of functions versus relations, and demonstrates ways of ...

www.purplemath.com/modules/orderops.htm

Explains the order of operations ' PEMDAS') in plain terms, points out common ...

www.purplemath.com/modules/orderops2.htm

The Order of Operations: More Examples (page 2 of 3). Order of Operations on ...

www.purplemath.com/modules/translat.htm

Lists some of the keywords that are useful in translating word problems from ...

www.purplemath.com/modules/strtlneq2.htm

Covers the 'point-slope' form of linear equations, including how to find a line ...

www.purplemath.com/modules/slope.htm

Explains the slope concepts, demonstrates how to use the slope formula, ...

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Practical algebra lessons that emphasize the practicalities of understanding ...

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Links to web sites offering quizzes and worksheets; reviewed by Purplemath.

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"Linear" equations are equations with just a plain old variable like "x", rather ...