3 Math Posters with Matching Student Worksheets and Student Reference Sheets. Each can be used various ways: * poster / word wall * worksheet * scaffolded note form * student reference sheet Included are differentiated versions: • Divisibility Rules for 2, 3, 4, 5, 6, 9, 10, 100 (3 versions) -- Examples with space for student examples -- Blank space for student examples -- Rules only • Prime Numbers Chart (2 versions) -- Prime numbers from 1 to 100 are highlighted -- Same chart,