Carving of Mt. Rushmore began on October 4 of the Mystery Year. As students find the year, they solve math clues that involve scale drawings, operations with decimals / fractions, equations, and measurement conversions in a real-world context. Historical connections are made to the Mt. Rushmore National Memorial — and specifically to the U.S. Presidents depicted. This puzzle provides mixed review of middle school math. Your PDF download includes:2-page digital version with horizontal layout, pre