This is a bundle of our products on adding 3 digit numbers with regrouping and no regrouping. It's a good supplement to your lesson. You can use these adding worksheets as a review, quiz, pre-test, homework, assessment, drill, or practice for your students in the 2nd, 3rd, or 4th grades. *** View our Addition Bundle to save and get more activities. These are all the sets included in this packet. Each set includes ten worksheets with answer keys. 3 Digit Addition With Regrouping:Aligned Numbers