Schlumberger Excellence in Educational Development, Inc. (SEED) offers creative math puzzles, with solutions. Puzzle categories include:
* Number Sense
* Arithmetic
* Probability
* Algebraic Thinking
* Geometry, Spatial Reasoning, and Visualization
* Topology
* Logic
* Combinatorics
* Miscellaneous
Today, you're in charge of the nation's finances. Some of your options have more short-term savings and some have more long-term savings. When you have closed the budget gaps for both 2015 and 2030, you are done. Make your own plan, then share it online.
Amusements in Mathematics is a collection of mathematical puzzles and brainteasers from English author and mathematician Henry Ernest Dudeney. The book includes over 450 illustrations. To view the Standalone version, you require the installation of the small file size DNL Reader. To get the DNL Reader, click the "Get DNL Reader" button on the site. It is worth it!