Arithmetic power of the strongest (4th grade or more) (work of Takashi Saito challenge level motivation) (2005) ISBN: 4010107561 [Japanese Import]

Arithmetic

Tankobon Hardcover

ISBN: 978-4-01-010756-0

ISBN-10: 4-01-010756-1

Obunsha
See also:
2005単行本最強の算数力 (小学6年以上) (難関レベル斎藤孝やる気のワーク)