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Description
100 Things to Know About Numbers, Computers & CodingWhen was the webcam invented and why? Do imaginary numbers exist? What is fuzzy logic? Find the answers these questions about the amazing world of numbers, computers and coding, along with loads of other curious, amazing and mind boggling facts, in this eye catching book that is absolutely bursting with information. Covers a wide range of topics from Ancient counting systems to unsolved mathematical mysteries and the latest in wearable computer
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.5 ★★★★★
Based on 1883 reviews
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Product Reviews
★★★★★ 1
Pieces of Plastic When Biting
My dog spent 15 minutes and then the item started to break up. As the dog was biting, little pieces were showing in his tongue. I threw it away. My dog is a lab.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 12, 2026
★★★★★ 5
Great idea
These are a good idea, I use frozen pumpkin and frozen blueberries in a cup, then put it in the corn, for my dog to have, while I'm at work.
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Reviewed in the United States on March 23, 2026
★★★★★ 3
made of STONE
i think the concept is great but the execution of the product is lacking. This is not made of rubber, there is no dog I can imagine chewing this thing. It is basically a STONE and rock hard and has absolutely zero give. She tried to chew it for one second and immediately stopped - the only thing the dog can do is lick so that aspect was disappointing. However, the toy works, keeps her attention and she loves the treat so all in all - not bad.
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Reviewed in the United States on October 14, 2025
★★★★★ 4
My dogs are heavy chewers
These are very hard and indestructible. The only thing, im afraid my pups will break their teeth. They are houses on a hard wood floor.
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Reviewed in the United States on November 30, 2025
★★★★★ 5
My couch is safe!
Perfect for my lab mix, and my pointer mix was jealous so I immediately bought a second after they both wanted it. Keeps them both busy for well over 30 minutes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 8, 2026
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