This add and subtract 3-digit and 2-digit numbers with regrouping worksheet consists of a set of questions on addition and subtraction, which help students develop fluency. Subtraction is the opposite operation of addition and vice versa. Students use this relationship and their understanding of basic addition and subtraction facts to add and subtract 3-digit and 2-digit numbers with regrouping in this worksheet. This worksheet is about practicing the column method in which numbers are written one on top of another. In this method, students use their place value understanding to solve the problems.