Do you need an activity for a sub, volunteer, or even a student to lead? This powerpoint allows for literally ANYONE to lead the class through a math activity while you are out of the room!
All you need to do is provide a hundreds chart that you like (most any one will do- or you can click on the link below for the one I used) and you're all set!
The students must answer ten more, ten less, one more, and one less problems in order to color the mystery picture. After each problem is given on the slide the answer will appear so students can quickly check their answers.
Hundreds chart I used in the picture:http://www.eduplace.com/math/hmm/tools/organizers/1/1hmm07_lt_7.pdf
*just about any hundreds chart should work