Array! It's Halloween! Make math spooky this October for second (2nd), third (3rd) grade and fourth (4th) grade! This resource is filled with multiplication arrays, addition and subtraction with regrouping, rounding to the nearest ten and hundred, and math riddles. It is perfect for fall crafts, worksheets, task cards, riddles, and bulletin board ideas designed to keep your students engaged while practicing key math skills. Save 20% on this Halloween-themed resource is perfect for centers