This worksheet consists of a set of questions on addition and subtraction where students are required to add and subtract 2-digit numbers and 10. Subtraction is the inverse of addition and vice versa. Students apply this relationship to solve a set of problems in add and subtract 2-digit numbers and 10 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.