On September 1 of the Mystery Year, the Liberty Bell arrived in Philadelphia. As students solve math clues to find the year, they review prime factorization, circumference of a circle, and order of operations. This engaging puzzle is perfect for middle school and up.Your PDF download includes:2-page digital version with horizontal layout, prepped for Easel 1-page printable version2 pages of Teacher Notes including step-by-step Solutions, error analysis of student misconceptions, and more.1-page