Book 7 in the Key to Algebra series is a workbook covering adding and subtracting rational expressions.

This series offers a unique, proven way to introduce algebra to your students.  New concepts are explained in simple language, and examples are easy to follow.  Word problems relate algebra to familiar situations, helping students understand abstract concepts.  Students develop understanding by solving equations and inequalities intuitively before formal solutions are introduced.

Minimal reading is required, so students can easily work independently or in small groups.  These self-paced, self-guided workbooks motivate students to succeed.

Answers and Notes for Books 1-4 (480-0031); Books 5-7 (480-0032); Books 8-10 (480-0033) and Reproducible Tests (480-0034) are available to accompany the Key to Algebra series.  Books 1-10 in the series are also available as a set (480-0007).

This series provide inexpensive, flexible and individualized materials ideally suited to adults learning basic math, as well as to school or home school settings.