The bundle includes 40 worksheets for your students to practice 4-digit addition and subtraction with regrouping. Sheets are neatly formatted. ~~Answer keys are included.~~Use for morning work, independent practice, assessment, or homework.********This bundle also includes a digital version (20 worksheets).********This will allow you to add 20 worksheets (first 10 pages of each packet) to your Google drive. Packets included:4 Digit Addition With Regrouping Worksheets4 Digit Subtraction With Regr