These addition worksheets are designed to help students learn how to solve addition problems with regrouping. All math worksheets are two-digit plus one-digit addition Included:10 worksheets of 2-digit plus single-digit no regrouping with grid support 10 worksheets of 2-digit plus single-digit regrouping with grid support 10 worksheets of 2-digit plus single-digit some regrouping 10 worksheets of 2-digit plus single-digit horizontally arranged 10 worksheets of 2-digit plus single-digit fill-in t