渐强
发表于 2025-3-23 10:23:18
The Pythagorean Theorem,Perhaps the most famous theorem of geometry bears the name of the Greek mathematician Pythagoras of Samos, who lived in the sixth century B.C.
Vldl379
发表于 2025-3-23 14:53:11
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不可侵犯
发表于 2025-3-23 18:39:09
,Calculating with Square Numbers—Number Cycles,e these number cycles are discovered in the following, we will show some ideas for mental calculation of square numbers. The research on square number cycles can also be done with the help of pocket calculators or a spreadsheet, so if you are not interested in the tips for mental arithmetic, you can skip the first part of this article.
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发表于 2025-3-23 23:33:35
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约会
发表于 2025-3-24 05:52:38
Sum of Spots,ally, the dice are labeled in such a way that the sum of spots of opposite surfaces add up to 7, that is, 7 = 1 + 6 = 2 + 5 = 3 + 4. To make a dice, you can use different dice nets. The best known is the shape of a lying cross, but ten other shapes are also possible.
babble
发表于 2025-3-24 08:00:17
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滔滔不绝的人
发表于 2025-3-24 12:20:05
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Focus-Words
发表于 2025-3-24 15:35:32
Heinz Klaus StrickThe book offers a wealth of material and suggestions for research, experimentation and investigation from a wide range of mathematical fields.Almost no knowledge is required, only curiosity about own
jeopardize
发表于 2025-3-24 19:07:42
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权宜之计
发表于 2025-3-25 02:10:36
https://doi.org/10.1007/978-3-662-62689-4Elementary Mathematics; Geometry; Number Theory; Fractals; Combinatorics; Recreational Mathematics