Description Help your students master 3-digit addition and subtraction, both with and without regrouping, using this set of 45 worksheets. These math practice sheets are perfect for warm-ups, reviews, homework, classwork, independent work, and more! Each worksheet contains 20 problems, offering a mix of addition and subtraction exercises, as well as separate focus areas like addition only, subtraction only, with regrouping, and without regrouping. Page Breakdown: 5 pages of addition without regr