Problem set for learning the basics of speed in arithmetic, containing 60 problems. - Title: Arithmetic Basic 60 Problems 3 (Speed) - Publisher: SAPIX - Series Name: Arithmetic Subject-Specific Problem Set Basic I bought this a few years ago and have kept it stored without using it. I have a cat. I remove hair and other debris before shipping, but I apologize if any should remain. m(_ _)m Therefore, I recommend that those with severe cat allergies refrain from purchasing. Negotiations for price reductions within reasonable limits are possible. Thank you for looking.