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Description
How Long is a Piece of String?A fascinating book, from a leading maths educator and demystifier, that shows how maths is relevant to our everyday lives. Have you ever wondered how the meter in a taxi works? Or why a lift takes so long to respond to your call? Is there a mathematical secret to making a hit single? And how long is a piece of string? In this fascinating book, you will find the answers to these and many other intriguing questions of everyday life. Discover the
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.1 ★★★★★
Based on 372 reviews
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Product Reviews
★★★★★ 5
Great Socks
Color: (001) Black / Black / Castlerock, Size: Large
I keep ordering these over and over again. They fit well, and are soft and comfortable. My feet don't sweat like crazy while wearing them. The cupped heel makes them fit even better. They hold up to everything from everyday use to active lifestyles.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026
★★★★★ 5
Talla perfecta
Color: (001) Black / Black / Castlerock, Size: Large
Excelente producto
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
★★★★★ 5
Very comfy!
Color: (100) White / White / Halo Gray, Size: Medium
Very soft, fits well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
★★★★★ 4
Good sock but thick
Color: (001) Black / Black / Castlerock, Size: Small
These Under Armour socks are high quality and definitely durable, with great cushioning and a solid fit that stays in place throughout the day. The material feels supportive and they hold up well after multiple washes without losing shape.
My only minor downside is that they’re thicker than I expected. They feel more like a heavy-duty training sock, which is great for colder weather or intense workouts, but a bit bulky for everyday sneakers or warmer days.
That said, the quality is excellent, and if you prefer a thicker, more cushioned sock, these are perfect. Just something to be aware of depending on how you plan to use them.
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Reviewed in the United States on May 26, 2026
★★★★★ 5
Black Under Armor Socks
Color: (001) Black / Black / Castlerock, Size: Medium
They fit perfect. I bought them for my
Boyfriend & most pairs are too big or not
Really no shows like they say. If they have white ones, I will be purchasing more.
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Reviewed in the United States on May 26, 2026
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