This is a math textbook. I bought it used on Mercari, but I didn't use it. There are some markings with a highlighter from when I purchased it. I also have past mock exam questions and other reference books for sale, so please take a look. It's also possible to change the combination of items. Since it's a used item, I'm looking forward to your purchase if you understand. "Mathematics 1・A Standard Problem Seikou" Masahisa Aso Price: ¥1400 #MasahisaAso #book #nature/mathematics