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小学生がたった1日で19×19までかんぺきに暗算できる本 【電子書籍】[ 小杉拓也 ]
🇯🇵 Original Japanese listing

Seller: 楽天Kobo電子書籍ストア

小学生がたった1日で19×19までかんぺきに暗算できる本 【電子書籍】[ 小杉拓也 ]

4 retailer reviews. Check recent and low-rated reviews too.

Checked: 2026/10/12 05:06 JST

★★★★☆4.0(4 reviews)

JPY 1,100 tax included in Japan

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This is an original Japanese Rakuten listing from 楽天Kobo電子書籍ストア, currently shown at JPY 1,100. Use the factual signals below to compare it, then confirm shipping, specifications, stock and the final amount on Rakuten Japan.
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Listed price
JPY 1,100
Seller
楽天Kobo電子書籍ストア
Public rating
4.0 / 5 (4)
Rakuten points
1×
Listing refreshed
2026-10-12 05:06

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Original listing information

🇯🇵 Original Japanese listing

＜p＞19×19＝□？
すぐに答えられますか？
この1冊をやるだけで、小学生がたった1日で19×19までの暗算がパッと答えられるようになる！
スモールステップで子どもも大人も楽しく学べて確実に身につく。
テストの得点力UP、中学受験、脳トレなど、ここぞという場面で大活躍のすごい暗算法を大公開！
＜/p＞画面が切り替わりますので、しばらくお待ち下さい。
※ご購入は、楽天kobo商品ページからお願いします。
※切り替わらない場合は、こちら をクリックして下さい。
※このページからは注文できません。
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