Book (Practical) Mathematics Daily life is full of numbers Mathematics that you want to continue to solve

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Mathematics
If you change your perspective, the world will change! If you change your perspective, you will understand the answer! Lots of daily secrets to solve in mathematics! Can solve in 1 question in 5 minutes? Let's challenge! Written by Asuki Yokoyama Graduated from Waseda University Graduate School of Mathematics and Applied Mathematics. The "Big Brother of Mathematics" conveys the fun of mathematics and mathematics to a wide range of children and adults. The representative of Math Channel Co., Ltd. conveys the fun of mathematics and mathematics. Vice President of the Nihon Owarai Mathematics Association. Certified senior instructor for infants and children by the Japanese Mathematics Certification Association. There are 10 books and co-authored books such as 『 Warai Mathematics 』 (Kadokawa Corporation), 『 Rigaku Risu Sense ・ Arithmetic King Puzzle 』 (Shogakukan), etc. The latest issue is 『 Warai Mathematics Route 4 』 (Kadokawa Corporation), Mathematics 』 (Seishun 『