This is a bundle of our products about adding and subtracting 3 digit numbers with and without regrouping and across zeros. You can use these math sheets as a review, homework, assessment, quiz, pre-test, or practice for your students in the 3rd or 4th grades. It's a good supplement to your lesson on triple digit addition and subtraction. *** View our Worksheets Bundle to save and get more activities. 3 Digit Addition With and Without Regrouping Aligned Numbers - 12 Questions Aligned Numbers -