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327 матСматичСских смСкалок. Π—Π°Π½ΠΈΠΌΠ°Ρ‚Π΅Π»ΡŒΠ½Ρ‹Π΅ Π·Π°Π΄Π°Ρ‡ΠΈ, ΠΈΠ³Ρ€Ρ‹, Π³ΠΎΠ»ΠΎΠ²ΠΎΠ»ΠΎΠΌΠΊΠΈ, ΡˆΡƒΡ‚ΠΊΠΈ ΠΈ фокусы | 327 Mathematical Quickies: Engaging Problems, Games, Puzzles, Jokes, and Tricks | RusLibrary - Russian Literature Store