This California college has a no-frills $612$-page textbook available for free PDF download: > *College of the Redwoods Mathematics Prealgebra Textbook*. 2012-13. ([*weblink*](http://mathrev.redwoods.edu/PreAlgText/)). A solutions manual is available at the same link. What "fluff" they include is hardly fluff; rather, educational: <hr /> ![Horus][1] <hr /> Note the sum $$ \frac{1}{2} + \frac{1}{4} + \frac{1}{8} + \frac{1}{16} + \frac{1}{32} + \frac{1}{64} = \frac{63}{64} $$ is missing $\frac{1}{64}$ of Horus's eye. [1]: https://i.sstatic.net/yzP6i.png