CliffsNotes Math Review for Standardized Tests,

Author(s): Jerry Bobrow

Difference between 2nd and 1st editions
Side by side comparison of table of contents helps to figure out the most significant changes.

Key differences between 2nd and 1st editions

Time lapse between current and previous publications: 25 years (2010 vs 1985).
New topics:

Standard deviation, a measure of the dispersion of a set of data from its mean value.
Slope and intercept of linear equations
How to graph linear equations using slope and intercept
How to graph linear equations using the x-intercept and y-intercept
How to find an equation of a line
Angle bisectors of a triangle

2nd Edition of
CliffsNotes Math Review for Standardized Tests,

eBook, 512 pages

eBook ISBN: 9780544182721
Published by: Cliffs Notes, April 06, 2012

Paperback, 512 pages

ISBN-10: 0470500778
ISBN-13: 9780470500774
Published by: Cliffs Notes, March 05, 2010

1st Edition of
Math Review For Standardized Tests (Cliffs Test Prep)

Paperback, 422 pages

ISBN-10: 0822020335
ISBN-13: 9780822020332
Published by: Cliffs Notes, August 28, 1985