There are two sets of 20 task cards along with an answer key for the teacher and and answer sheet for the students. There are two versions, differentiated, and non-differentiated. So a total of 40 task cards. The differentiated task cards have a slightly different border as seen in the preview. The skills involved are: recognizing symbolic representation, multiplication, division, work with fractions, percent. There is one multiple choice question, the rest are all calculation/short answe