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Description
The USSR Olympiad Problem Book: Selected Problems and Theorems of Elementary MathematicsThis book contains 320 unconventional problems in algebra, arithmetic, elementary number theory, and trigonometry. Most of the problems first appeared in competitive examinations sponsored by the School Mathematical Society of the Moscow State University and the Mathematical Olympiads held in Moscow. Although most of the problems presuppose only high school mathematics, they are not easy; some are of uncommon difficulty and will challenge the
This book contains 320 unconventional problems in algebra, arithmetic, elementary number theory, and trigonometry. Most of the problems first appeared in competitive examinations sponsored by the School Mathematical Society of the Moscow State University and the Mathematical Olympiads held in Moscow. Although most of the problems presuppose only high school mathematics, they are not easy; some are of uncommon difficulty and will challenge the ingenuity of any research mathematician. Nevertheless, many are well within the reach of motivated high school students and even advanced seventh and eighth graders.The problems are grouped into twelve separate sections. Among these are: the divisibility of integers, equations having integer solutions, evaluating sums and products, miscellaneous algebraic problems, the algebra of polynomials, complex numbers, problems of number theory, distinctive inequalities, difference sequences and sums, and more.
Complete solutions to all problems are given; in many cases, alternate solutions are detailed from different points of view. Solutions to more advanced problems are given in considerable detail. Moreover, when advanced concepts are employed, they are discussed in the section preceding the problems. Useful in a variety of ways in high school and college curriculums, this challenging volume will be of particular interest to teachers dealing with gifted and advanced classes.
Binding Type: Paperback
Publisher: Dover Publications
Published: 09/28/1993
ISBN: 9780486277097
Pages: 480
Weight: 1.03lbs
Size: 8.76h x 5.16w x 0.90d
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★★★★★ 4
Good but not great purchase
Color: 02 - Antique White, Size: Queen, Color: 02 - Antique White, Size: Queen
The sheets are soft and fit the bed amazingly!!
Downfall there was a rip in the fitted sheet at one seam. I had to mend it myself as I had to have a sheet to sleep on and a return would take too long. Also a few pieces of thread not properly secured.
I am unsure if I will buy again but the pros are:
Clean packaging
Soft
Comfortable
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Most comfortable pillows for my back
Color: Navy, Size: 26x26 Inch
I have a really bad back along with sciatica so I use these pillows on my recliner chair, one for my back and one under my bottom. They make all the difference in the world. They are soft and squishy yet still offer support. They are a great value for sure. This blue color was about half the price of other colors with was fine with me because I put washable covers on them anyway. I frequently fall asleep on them. My dog loves when they accidentally fall on the floor because he curls up on them and falls asleep. He finds them very comfortable. I can't say enough good about these. They would be great on a bed or couch too or even as a floor cushion. They are high quality, well made pillows.
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Reviewed in the United States on April 8, 2026
★★★★★ 5
Perfect! Soft and fluffy! Exact size!
Color: White, Size: 16x16 Inch
These little pillows are perfect! They exactly fit in a 16x16 pillowcase. They're very soft and fluffy!
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Reviewed in the United States on May 26, 2026
★★★★★ 5
The trust we deposited in our selected shopping and companies.
Color: White, Size: 26x26 Inch
Excellent! Fix the covers and have a texturized and very fine fabrics made. Color as selected , size perfect any place deserved to be the best pillow and covers. Like the headboard for comfortable sitting position, also for sofas, chairing . Just try when buying and knowing the measurements and the (by experienced before) quality of the company manufactures and also like the best deliveries companies . Nothing else” excellent products” and thank You.
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Reviewed in the United States on April 6, 2026
★★★★★ 5
Solid choice for pillow inserts!
Color: White, Size: 12x20 Inch
Nice quality, firm yet soft. Really the perfect pillow for what I needed. Fit perfectly in my 12x20 cover. A solid choice at a good value!
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Reviewed in the United States on April 29, 2026