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Math Secrets for Elementary School: Solve Calculations in 5 Seconds!

Math Secrets for Elementary School: Solve Calculations in 5 Seconds!

小学校で習う計算が５秒で解ける　算数 ひみつの７つ道具　たし算　ひき算　かけ算　割合　分数　約分　すべて暗算できる

かんき出版 · ISBN 9784761231101

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$44.99 USD
$44.99 USD
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Math Secrets for Elementary School: Solve Calculations in 5 Seconds!

by Akitonton,

This book by Akitonton reveals seven secret techniques to solve elementary school-level math problems in seconds. Focus is on addition, subtraction, multiplication, percentages, fractions, and simplification, all doable mentally. Note: The text is entirely in Japanese. Brand New Japanese Edition. Ships worldwide from Japan via Japan Post. Expedited shipping via FedEx available.

ISBN 9784761231101 · ISBN-10 4761231106

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