{"id":67393,"date":"2026-04-02T09:48:06","date_gmt":"2026-04-02T02:48:06","guid":{"rendered":"https:\/\/hbbgroup.net\/bai-toan-hoc-bua-lieu-ban-giai-duoc-bang-8-hay-2\/"},"modified":"2026-04-02T09:48:06","modified_gmt":"2026-04-02T02:48:06","slug":"bai-toan-hoc-bua-lieu-ban-giai-duoc-bang-8-hay-2","status":"publish","type":"post","link":"https:\/\/hbbgroup.net\/vi\/bai-toan-hoc-bua-lieu-ban-giai-duoc-bang-8-hay-2\/","title":{"rendered":"B\u00e0i to\u00e1n h\u00f3c b\u00faa, li\u1ec7u b\u1ea1n gi\u1ea3i \u0111\u01b0\u1ee3c b\u1eb1ng 8 hay 2?"},"content":{"rendered":"
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B\u00e0i to\u00e1n h\u00f3c b\u00faa, li\u1ec7u b\u1ea1n gi\u1ea3i \u0111\u01b0\u1ee3c b\u1eb1ng 8 hay 2?<\/span><\/h2>\n<\/p><\/div>\n

M\u1ed9t ph\u00e9p to\u00e1n nh\u01b0ng khi\u1ebfn nhi\u1ec1u ng\u01b0\u1eddi tranh c\u00e3i kh\u00f4ng ng\u1eebng, k\u1ebft qu\u1ea3 l\u00e0 8 hay 2 ph\u1ee5 thu\u1ed9c c\u00e1ch hi\u1ec3u c\u1ee7a b\u1ea1n v\u1ec1 th\u1ee9 t\u1ef1 t\u00ednh to\u00e1n.<\/p>\n

Tho\u1ea1t nh\u00ecn, ph\u00e9p to\u00e1n n\u00e0y t\u01b0\u1edfng ch\u1eebng \u0111\u01a1n gi\u1ea3n \u0111\u1ebfn m\u1ee9c kh\u00f4ng c\u1ea7n suy ngh\u0129 nhi\u1ec1u: 4 \u00d7 2 : 2 \u00d7 2 = ?. Th\u1ebf nh\u01b0ng khi b\u1eaft tay v\u00e0o t\u00ednh, kh\u00f4ng \u00edt ng\u01b0\u1eddi l\u1ea1i cho ra hai k\u1ebft qu\u1ea3 ho\u00e0n to\u00e0n kh\u00e1c nhau. C\u00f3 ng\u01b0\u1eddi kh\u1eb3ng \u0111\u1ecbnh \u0111\u00e1p \u00e1n l\u00e0 8, trong khi ng\u01b0\u1eddi kh\u00e1c l\u1ea1i ch\u1eafc ch\u1eafn \u0111\u00f3 ph\u1ea3i l\u00e0 2.<\/p>\n

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\"B\u00e0i <\/picture><\/div>
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S\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y xu\u1ea5t ph\u00e1t t\u1eeb c\u00e1ch m\u1ed7i ng\u01b0\u1eddi \u00e1p d\u1ee5ng th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n ph\u00e9p t\u00ednh. M\u1ed9t s\u1ed1 ng\u01b0\u1eddi \u01b0u ti\u00ean nh\u00e2n tr\u01b0\u1edbc chia sau, trong khi s\u1ed1 kh\u00e1c l\u1ea1i th\u1ef1c hi\u1ec7n l\u1ea7n l\u01b0\u1ee3t t\u1eeb tr\u00e1i sang ph\u1ea3i. Ch\u00ednh \u0111i\u1ec1u n\u00e0y khi\u1ebfn b\u00e0i to\u00e1n tr\u1edf n\u00ean “h\u00f3c b\u00faa” h\u01a1n v\u1ebb ngo\u00e0i c\u1ee7a n\u00f3. B\u1ea1n \u0111\u00e3 c\u00f3 k\u1ebft qu\u1ea3 cho ri\u00eang m\u00ecnh ch\u01b0a, hay v\u1eabn \u0111ang ph\u00e2n v\u00e2n gi\u1eefa hai \u0111\u00e1p \u00e1n?<\/p>\n

<\/span> <\/div>","protected":false},"excerpt":{"rendered":"

B\u00e0i to\u00e1n h\u00f3c b\u00faa, li\u1ec7u b\u1ea1n gi\u1ea3i \u0111\u01b0\u1ee3c b\u1eb1ng 8 hay 2? M\u1ed9t ph\u00e9p to\u00e1n nh\u01b0ng khi\u1ebfn nhi\u1ec1u ng\u01b0\u1eddi tranh […]<\/p>","protected":false},"author":5,"featured_media":67394,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[94],"tags":[],"class_list":["post-67393","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc-trong-nuoc"],"acf":[],"_links":{"self":[{"href":"https:\/\/hbbgroup.net\/vi\/wp-json\/wp\/v2\/posts\/67393","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hbbgroup.net\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hbbgroup.net\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hbbgroup.net\/vi\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/hbbgroup.net\/vi\/wp-json\/wp\/v2\/comments?post=67393"}],"version-history":[{"count":0,"href":"https:\/\/hbbgroup.net\/vi\/wp-json\/wp\/v2\/posts\/67393\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hbbgroup.net\/vi\/wp-json\/wp\/v2\/media\/67394"}],"wp:attachment":[{"href":"https:\/\/hbbgroup.net\/vi\/wp-json\/wp\/v2\/media?parent=67393"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hbbgroup.net\/vi\/wp-json\/wp\/v2\/categories?post=67393"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hbbgroup.net\/vi\/wp-json\/wp\/v2\/tags?post=67393"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}