This powerpoint presentation was designed to introduce 2-digit addition to second graders. It includes guided practice through 4 different addition problems. The problems are examples of regrouping a ten with no leftovers, regrouping a ten with leftovers, regrouping a hundred, and regrouping a ten and a hundred. Ones, tens, and hundreds are animated so students can see the trade that occurs when regrouping. Students would benefit from having base ten blocks and a markerboard (or paper) during this presentation.