Students will skate right through these centers as they add three digit numbers. One center has 20 problems without regrouping and the other center has 20 problems with regrouping. There is a student answer sheet and answer keys for both centers. These centers make differentiated instruction a breeze!
Then you can use the 4 worksheets to practice, review, or assess this skill.
This packet is a part of a winter bundle that can be found here:
All Bundled Up For Winter