By Hiroshi Toyama This is a complete set of all 10 volumes of "Sansu Daisuki" (I Love Math). List price: 25,200 yen (for the set of 10 volumes) 2,520 yen per book These picture books are for children aged 3 to early elementary school and make learning math fun. [Volume 1] Which is bigger? [Volume 2] Gathering Friends [Volume 3] What is a Number? ① From 0 to 5 [Volume 4] Dividing and Combining [Volume 5] Picture Matching Electric News [Volume 6] What is a Number? ② From 6 to 99 [Volume 7] Carrying Over and Borrowing [Volume 8] Big Numbers: From 100 to 1000 [Volume 9] Let's Measure: Centimeters and Deciliters [Volume 10] Let's Do Multiplication Includes the original box. The box has tears and damage. Please check the photos. The books themselves are in very good condition, with no stains or writing. Some volumes have never been read. Please forgive any oversight. *We are not selling individual volumes. *The cardboard boxes used for packaging may be recycled.