When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Mathematical box. A textbook for students Soviet Russia book. In other words, this book is a kind of mathematical box. This book presents a variety of tasks for students in grades 4 - 8. But there are a lot of interesting problems, interesting even for high school students.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.