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Description
大偵探福爾摩斯-數學偵緝系列#6 金庫的秘密: : 2410
作者: 厲河 | 繪者: 月牙
新形式 結合漫畫故事與專欄解說，圖文並茂，有效訓練數學計算能力！
李大猩發現銀行金庫存有大量黑幫犯罪所得的財產，計劃將其充公。只是他不知密碼而無法開啟當中夾萬的大門，唯有請福爾摩斯出手幫忙。大偵探細心調查，發現門外有些古怪的數學符號，斷定那就是密碼提示。究竟二人能否成功打開夾萬？
本書還收錄小兔子與愛麗絲的朱古力爭奪戰、「合24」數學遊戲等合共10個短篇漫畫故事，當中深入淺出地解說各種數學知識，還加入相關謎題。大家看故事之餘，也能動動腦筋，提升數學運算與邏輯思考的能力呢！
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4.7 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 5
Dog parents; buy this now!
Color: Black/White, Size: Medium
A must have for my pup! I have bought this at least 5 times. She eventually pops them and I need a new one. It's an amazing toy that she can thrash and we can play fetch with
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Reviewed in the United States on May 1, 2026
★★★★★ 5
Westie LOVES this toy
Color: U.S.A, Size: Medium
My pup (Westie) adores this toy. This is actually our second one. The ball itself is resistant but the straps will be obliterated. Would definitely recommend! Totally worth the price!
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Reviewed in the United States on May 11, 2026
★★★★★ 3
Not durable
Color: Black/White, Size: Large
If you have a dog who likes to pop things then this toy isn't it. Within 5 min she had this ball popped. It was made to sound like it was durable for this type of thing but it definitely is not so just be aware. Now if you have a dog who doesn't pop things easy then this would be a good toy
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Reviewed in the United States on May 15, 2026
★★★★★ 5
They last quite well, even out in weather.
Color: Black/White, Size: Medium
NY corgi loves these!
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Reviewed in the United States on May 31, 2026
★★★★★ 5
Dog can't pop it!
Color: Black/White, Size: Medium
Great toy would buy again!
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Reviewed in the United States on November 17, 2025