This is a problem set from NICHINOKEN (a cram school) before entering the school. I marked up to page 85 with a red pen, but I haven't done the rest. The second half is blank. This is a math problem book for first graders, with an answer key. - Title: Super Elite Problem Set Arithmetic Grade 1 - Publisher: Bun'eido - Target Grade: Grade 1 - Contents: Math problem set, answer key, practice problems Thank you for viewing.