If your students need practice in adding multi-digit whole numbers this set of task cards is just what you are looking for. It targets CCSS.MATH.CONTENT.4.NBT.B.4-building fluency in this skill.
There are 2 sets of 24 task cards with a variety of addition problems up to 7 places. Great Practice! The student answer sheet and key are included. I allow my students to work on the back of the answer sheet or provide scratch (cheaper)paper. The answer sheet provides boxes for their answers.
The cards can also be used for scoot, small groups, and homework.