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19✖️19
Live
Listed 1h ago
19✖️19
$5.57
¥900 Original price in JPY
Condition
Good
Cost Breakdown
Item Price
$5.57
Service Fee (15%, min $5)
$5.00
Estimated Shipping
$20.00–$50.00
United States
Canada
United Kingdom
Germany
France
Australia
New Zealand
South Korea
China
Taiwan
Hong Kong
Singapore
Thailand
Malaysia
Philippines
Indonesia
Italy
Spain
Netherlands
Sweden
Switzerland
Mexico
Brazil
$20–$50
Est. customs/duties
$0
Most items under $800 enter duty-free
Estimated Total
$45.57
Est. delivery
Jul 4 – Jul 13
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$5.57
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Description
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！ 実際これで算数トップクラス校に合格したので買う価値はあるなと思います．
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19✖️19 | jpdrop
