This 47-page 2 Digit Addition and Subtraction Unit (with a complete 47-page answer key) offers scaffolded worksheets to support students as they learn about 2 digit addition and subtraction without and with regrouping. The worksheets offer a variety of o ptions for instruction and practice, as well as word problems and quizzes. This package contains the following pages:- 38 worksheets to support students as they develop their understanding and confidence when adding and subtracting 2-digit