Smarty Trunks

Addition & Subtraction Within 100 | Place Value, Regrouping, Word Problems This 32-page addition and subtraction within 100 math resource is designed to build strong place value understanding, number sense, and regrouping skills. Students work with mostly tens, ones, and some hundreds (added for a challenge), practice adding and subtracting within 100, and apply their skills through word problems and real-world math activities. This resource is ideal for 1st grade and works well for whole-grou