This is a problem set for the Arithmetic Proficiency Test, Level 10. I have solved all the problems and written the answers in pencil once. I erased everything with an eraser, but because I pressed hard, you might be able to see the answers on some problems if you look closely. Also, there might be some remaining marks. The third photo shows a page where the answer is somewhat visible. The cover is also creased (see photos). It has been stored at home for a long time. Please understand this before purchasing.