This puzzle is one that will enable you to discover some of the more recent history of Hilton Head Island. It’s a mathematical history . . . and you’ll be the one supplying the arithmetic. Don’t despair! Each of the expressions you’ll be evaluating can either be done mentally, or with minimal pencil-work . . . if you’ll employ one of the following three computation shortcuts.
A prelude discusses short ways to add, subtract, and square numbers ending in 5. The puzzle is one that we call a "Mathacrostic", and is from my book Fun with Hilton Head and Beaufort (for the well-rounded puzzler who wants to know more.)
More Recent Hilton Head History, More Old Arithmetic Tricks
by Jay Waggoner, Value Added Publishing
is licensed under a Creative Commons Attribution-NoDerivs 3.0 Unported License