This is a collection of worksheets on adding 2 digit numbers with and without regrouping. It has various types of activities for differentiation and practice. You can use these math sheets as a review, homework, quiz, pre test, assessment, drill, or practice activity for your students in the 2nd or 3rd grades. *** View our Addition Worksheets Bundle to save and get all worksheets.There are five sets in this product: Set 1: Aligned Vertical Addition (12 questions each) Set 2: Color the Correct A