Vladimir Tumanov's novel Saving the Queen, which has become a favorite of children in every country it has published - dragging its readers from riddle to riddle along with its heroes - turns amthematics into a fantastic adventure. This book of the author, which made children love mathematics - like his novel Lost on the Map, which aroused interest in geography - reached hundreds of thousands of readers in Turkey! Aleks, who is not good with mathematics, discovers that the interesting pencil he found on the road solves mathematical problems. Just as he is enjoying his success in the exams, a mysterious book drags him and his close friends into a dangerous and extraordinary adventure in the world of numbers. In order to save the Emerald Queen and her country, captured by an evil king, three friends must solve 400 problems. But how?.. Barcode: 9786059952767 Brand: Günışığı Kitaplığı Author: Vladimir Tumanov Pages: 160 Pages Paper: 2nd Dough Paper Size: 12.00x18.00 cm Printing Year: November 2019