{"id":10883,"date":"2026-04-14T07:01:12","date_gmt":"2026-04-14T07:01:12","guid":{"rendered":"https:\/\/www.rady-ch.top\/?p=10883"},"modified":"2026-04-14T07:01:13","modified_gmt":"2026-04-14T07:01:13","slug":"chytak-na-ktorom-pohoria-tisice-ludi-trufnete-si-na-tento-priklad-z-prvej-triedy","status":"publish","type":"post","link":"https:\/\/www.rady-ch.top\/?p=10883","title":{"rendered":"Chyt\u00e1k, na ktorom pohoria tis\u00edce \u013eud\u00ed: Tr\u00fafnete si na tento pr\u00edklad z prvej triedy?"},"content":{"rendered":"\n

Internetom sa op\u00e4\u0165 \u0161\u00edri matematick\u00e1 h\u00e1danka, ktor\u00e1 rozde\u013euje \u013eud\u00ed na dva t\u00e1bory. Na prv\u00fd poh\u013ead vyzer\u00e1 \u00faplne ban\u00e1lne \u2013 ve\u010f ide o s\u010d\u00edtanie a n\u00e1sobenie mal\u00fdch \u010d\u00edsel, ktor\u00e9 by mal zvl\u00e1dnu\u0165 aj \u017eiak z\u00e1kladnej \u0161koly. Napriek tomu v koment\u00e1roch pod podobn\u00fdmi pr\u00edspevkami n\u00e1jdete desiatky r\u00f4znych v\u00fdsledkov.<\/p>\n\n\n\n

Pre\u010do rob\u00edme chybu?<\/strong><\/h3>\n\n\n\n

Probl\u00e9m nie je v tom, \u017ee by sme nevedeli po\u010d\u00edta\u0165. Probl\u00e9mom je pozornos\u0165<\/strong> a niekedy aj prachom zapadnut\u00e9 pravidl\u00e1 matematiky, ktor\u00e9 sme si zo \u0161koly neodniesli do be\u017en\u00e9ho \u017eivota. V\u00e4\u010d\u0161ina \u013eud\u00ed toti\u017e po\u010d\u00edta automaticky z\u013eava doprava, \u010do je v tomto pr\u00edpade cesta k zaru\u010dene zl\u00e9mu v\u00fdsledku.<\/p>\n\n\n\n

Zopakujme si pravidl\u00e1 hry<\/strong><\/h3>\n\n\n\n

V matematike plat\u00ed jasn\u00e1 hierarchia oper\u00e1ci\u00ed (tzv. pravidlo prednosti):<\/p>\n\n\n\n

    \n
  1. Z\u00e1tvorky<\/strong> (v tomto pr\u00edklade nie s\u00fa).<\/li>\n\n\n\n
  2. N\u00e1sobenie a delenie<\/strong> (maj\u00fa v\u017edy prednos\u0165 pred s\u010d\u00edtan\u00edm!).<\/li>\n\n\n\n
  3. S\u010d\u00edtanie a od\u010d\u00edtanie<\/strong>.<\/li>\n<\/ol>\n\n\n\n

    Sk\u00faste to teraz sami<\/strong><\/h3>\n\n\n\n

    Pozrite sa na obr\u00e1zok e\u0161te raz:<\/p>\n\n\n\n

    $$50 + 50 – 25 \\times 0 + 2 = ?$$<\/p>\n\n\n\n

    Ak ste tipovali 2<\/strong>, pravdepodobne ste sa nechali nachyta\u0165 a vyn\u00e1sobili nulou cel\u00fd predch\u00e1dzaj\u00faci s\u00fa\u010det. Ak v\u00e1m vy\u0161lo 102<\/strong>, gratulujeme! Patr\u00edte k men\u0161ine, ktor\u00e1 si pam\u00e4t\u00e1, \u017ee najsk\u00f4r mus\u00edte vypo\u010d\u00edta\u0165 $25 \\times 0$.<\/p>\n\n\n\n

    Spr\u00e1vny postup:<\/strong><\/p>\n\n\n\n

      \n
    • $25 \\times 0 = 0$<\/li>\n\n\n\n
    • $50 + 50 – 0 + 2 = 102$<\/li>\n<\/ul>\n\n\n\n

      Zdie\u013eajte a otestujte priate\u013eov!<\/strong><\/h3>\n\n\n\n

      Zd\u00e1 sa v\u00e1m to pr\u00edli\u0161 jednoduch\u00e9? Schv\u00e1lne sk\u00faste tento obr\u00e1zok posla\u0165 svojim zn\u00e1mym alebo ho zdie\u013ea\u0165 na profile. Budete prekvapen\u00ed, ko\u013eko dospel\u00fdch \u013eud\u00ed sa pri n\u00e1soben\u00ed nulou \u201esekne\u201c.<\/p>\n\n\n\n

      A \u010do vy? Vy\u0161lo v\u00e1m to na prv\u00fdkr\u00e1t, alebo ste museli zapoji\u0165 logiku a\u017e na druh\u00fd pokus? Nap\u00ed\u0161te n\u00e1m do koment\u00e1rov!<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

      Internetom sa op\u00e4\u0165 \u0161\u00edri matematick\u00e1 h\u00e1danka, ktor\u00e1 rozde\u013euje \u013eud\u00ed na dva t\u00e1bory. Na prv\u00fd poh\u013ead vyzer\u00e1 \u00faplne ban\u00e1lne \u2013 ve\u010f ide o s\u010d\u00edtanie a n\u00e1sobenie mal\u00fdch \u010d\u00edsel, ktor\u00e9 by mal […]<\/p>\n","protected":false},"author":1,"featured_media":10885,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-10883","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-zajimavy"],"yoast_head":"\nChyt\u00e1k, na ktorom pohoria tis\u00edce \u013eud\u00ed: Tr\u00fafnete si na tento pr\u00edklad z prvej triedy? - Recept\u00e1\u0159<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.rady-ch.top\/?p=10883\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Chyt\u00e1k, na ktorom pohoria tis\u00edce \u013eud\u00ed: Tr\u00fafnete si na tento pr\u00edklad z prvej triedy? - Recept\u00e1\u0159\" \/>\n<meta property=\"og:description\" content=\"Internetom sa op\u00e4\u0165 \u0161\u00edri matematick\u00e1 h\u00e1danka, ktor\u00e1 rozde\u013euje \u013eud\u00ed na dva t\u00e1bory. 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