This is a collection of our vertical addition worksheets with answer keys. It's a good supplement to your lesson on adding multi-digit numbers. You can use these math sheets as a review, homework, quiz, pre test, assessment, drill, or practice for your students in the 2nd, 3rd, or 4th grades. *** View our ADDITION Bundle to save and get all types of worksheets.The problems included in this packet are: 2-Digit Plus 1-Digit Addition 2-Digit by 1-Digit Addition With Regrouping2-Digit Addition No Re