【Content】 This is the answer key for the 2022 edition of the Mathematics Exercises. It is a set of two books: Standard and Original. 【Features】 - Standard Mathematics Exercises I, II, A, B Answer Key: Blue cover - Original Standard Mathematics Exercises III Answer Key: Purple cover 【Usage】 Ideal for checking the answers to math exercises. Useful for studying and review. - Year: 2022 - Title: Standard Mathematics Exercises I, II, A, B Answer Key - Title: Original Standard Mathematics Exercises III Answer Key - Color: Blue - Color: Purple I had a hard time getting this because it's not a reprint, but it was very helpful. ・Please refrain from price negotiations. Thank you for looking.