I developed these task cards to help my students to transition from counting by 1's and 10's to doing double digit addition and subtraction using a hundreds chart. I use them in my Math centers for review, but they could be used as a Gallery Walk posted around the room, or for Scoot with your whole class.
This set includes 24 task cards, a blank answer sheet for students and answer key, an instruction cover sheet for the student ( I print it and put it into a sheet protector and put it in my Math center back-to back with the answer key).
The task cards are on coloured backgrounds which I have made narrow to use less ink. They also print well if you choose grey scale on your printer. The 2 answer sheets are black and white.