A nice touch in this textbook is the cheat sheet for common formulas.
Product Tag: Secrets Of Mental Math
Secrets of Mental Math Great Courses DVD Set + Guidebook Arthur Benjamin 2007NEW
What stands out about this textbook is how the vintage design creates a calming effect.
Great Courses: The Secrets Of Mental Math 2 DVD set + Book In Shrink-wrap
This textbook is part of a series, but it works perfectly on its own.
