This is a collection of worksheets on adding 2 digit and 1 digit numbers without regrouping. You can use these worksheets as a review, homework, quiz, pre test, assessment, drill, or practice for your students in the 1st and 2nd grades. This packet includes five activities and answer keys. *** View our Addition Worksheets Bundle to save and get more activities.There are five sets in this product: Set 1: Aligned Vertical Addition (20 questions) Set 2: Color the Correct Answer (3 choices) Set 3: F