{"id":17854,"date":"2024-04-21T12:54:39","date_gmt":"2024-04-21T12:54:39","guid":{"rendered":"https:\/\/soicau5106.minhngocxoso.com\/?p=17854"},"modified":"2024-04-21T12:54:39","modified_gmt":"2024-04-21T12:54:39","slug":"tao-dan-de-chia-het-cho-3-dan-de-chia-3-du-2-du-1-bao-nhieu-con","status":"publish","type":"post","link":"https:\/\/caulobachthu.com\/tao-dan-de-chia-het-cho-3-dan-de-chia-3-du-2-du-1-bao-nhieu-con\/","title":{"rendered":"t\u1ea1o d\u00e0n \u0111\u1ec1 chia h\u1ebft cho 3, d\u00e0n \u0111\u1ec1 chia 3 d\u01b0 2, d\u01b0 1 bao nhi\u00eau con"},"content":{"rendered":"\n
D\u00e0n \u0111\u1ec1 chia h\u1ebft cho 3 v\u00e0 d\u00e0n \u0111\u1ec1 kh\u00f4ng chia h\u1ebft cho 3 l\u00e0 m\u1ed9t trong nh\u1eefng lo\u1ea1i d\u00e0n \u0111\u1ec1 m\u1edbi, tuy nhi\u00ean l\u1ea1i c\u00f3 \u0111\u01b0\u1ee3c s\u1ef1 quan t\u00e2m v\u00e0 \u00e1p d\u1ee5ng c\u1ee7a r\u1ea5t nhi\u1ec1u anh em trong th\u1eddi gian g\u1ea7n \u0111\u00e2y. D\u00e0n \u0111\u1ec1 d\u1ea1ng chia h\u1ebft hay chia d\u01b0 cho 3 \u0111\u01b0\u1ee3c c\u00e1c cao th\u1ee7 l\u00f4 \u0111\u1ec1 t\u1ed5ng h\u1ee3p v\u00e0 s\u1eed d\u1ee5ng khi ch\u01a1i c\u00f3 t\u1ef7 l\u1ec7 th\u00e0nh c\u00f4ng kh\u00e1 cao.<\/p>\n\n\n\n
Do \u0111\u00e2y l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p ch\u01a1i c\u00f2n kh\u00e1 l\u00e0 m\u1edbi, n\u00ean c\u00f3 l\u1ebd r\u1ea5t nhi\u1ec1u anh em v\u1eabn ch\u01b0a bi\u1ebft \u0111\u1ebfn v\u00e0 c\u1ea3m th\u1ea5y h\u01a1i l\u1ea1 l\u1eabm, ch\u01b0a th\u1ec3 \u00e1p d\u1ee5ng ch\u01a1i m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 \u0111\u01b0\u1ee3c. Ch\u00ednh v\u00ec th\u1ebf, trong b\u00e0i vi\u1ebft h\u00f4m nay xin chia s\u1ebb t\u1edbi anh em m\u1ed9t s\u1ed1 th\u00f4ng tin quan tr\u1ecdng \u0111\u01b0\u1ee3c t\u1ed5ng h\u1ee3p v\u00e0 t\u00edch l\u0169y v\u1ec1 c\u00e1ch t\u1ea1o d\u00e0n \u0111\u1ec1 chia h\u1ebft cho 3 v\u00e0 d\u00e0n \u0111\u1ec1 chia cho 3 d\u01b0 2, d\u01b0 1 ch\u00ednh x\u00e1c nh\u1ea5t nh\u00e9!<\/p>\n\n\n\n
Hi\u1ec3u \u0111\u01a1n gi\u1ea3n th\u00ec d\u00e0n \u0111\u1ec1 chia h\u1ebft cho 3 l\u00e0 t\u1eadp h\u1ee3p nh\u1eefng s\u1ed1 trong trong kho\u1ea3ng t\u1eeb 0 \u0111\u1ebfn 99 v\u00e0 l\u00e0 nh\u1eefng s\u1ed1 chia h\u1ebft cho 3.<\/p>\n\n\n\n
C\u00f3 ngh\u0129a l\u00e0, n\u1ebfu anh em th\u1ef1c hi\u1ec7n ph\u00e9p chia c\u1ee7a m\u1ed9t s\u1ed1 b\u1ea5t k\u00ec trong d\u00e0n n\u00e0y cho 3 th\u00ec s\u1ed1 d\u01b0 c\u1ee7a ph\u00e9p t\u00ednh \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n s\u1ebd l\u00e0 0.<\/p>\n\n\n\n
D\u00e0n \u0111\u1ec1 chia h\u1ebft cho 3 chu\u1ea9n x\u00e1c nh\u1ea5t, c\u00f3 bao nhi\u1ec1u con?<\/em><\/p>\n\n\n\n V\u00ed d\u1ee5:<\/p>\n\n\n\n – S\u1ed1 96 chia cho 3 \u0111\u01b0\u1ee3c 32 v\u00e0 d\u01b0 0, t\u1ee9c l\u00e0 96 chia h\u1ebft cho 3 n\u00ean n\u00f3 thu\u1ed9c d\u00e0n \u0111\u1ec1 chia h\u1ebft cho 3.<\/p>\n\n\n\n – T\u01b0\u01a1ng t\u1ef1 30 chia 3 \u0111\u01b0\u1ee3c 10 v\u00e0 kh\u00f4ng d\u01b0 n\u00ean n\u00f3 c\u0169ng thu\u1ed9c d\u00e0n \u0111\u1ec1 chia h\u1ebft cho 3.<\/p>\n\n\n\n Nh\u01b0 v\u1eady l\u00e0m sao \u0111\u1ec3 t\u00ecm \u0111\u01b0\u1ee3c c\u00e1c s\u1ed1 thu\u1ed9c d\u00e0n \u0111\u1ec1 chia h\u1ebft cho 3? R\u1ea5t \u0111\u01a1n gi\u1ea3n, ng\u01b0\u1eddi ch\u01a1i s\u1ebd d\u1ef1a v\u00e0o d\u1ea5u hi\u1ec7u trong to\u00e1n h\u1ecdc \u0111\u1ec3 t\u00ecm ra nh\u1eefng s\u1ed1 chia h\u1ebft cho 3. C\u00e1ch t\u00ednh n\u00e0y t\u01b0\u01a1ng t\u1ef1 nh\u01b0 c\u00e1ch t\u00ecm d\u00e0n \u0111\u1ec1 t\u1ed5ng chia h\u1ebft cho 3, t\u1ee9c l\u00e0 \u0111\u1ec1 chia h\u1ebft cho 3 th\u00ec t\u1ed5ng \u0111\u1ec1 c\u1ee7a n\u00f3 l\u00e0 m\u1ed9t s\u1ed1 chia h\u1ebft cho 3.<\/p>\n\n\n\n V\u00ed d\u1ee5:<\/p>\n\n\n\n – S\u1ed1 96 c\u00f3 9 + 6 = 15 chia h\u1ebft cho 3 n\u00ean n\u00f3 thu\u1ed9c d\u00e0n \u0111\u1ec1 chia h\u1ebft cho 3.<\/p>\n\n\n\n – S\u1ed1 30 c\u00f3 3 + 0 = 3 chia h\u1ebft cho 3 n\u00ean n\u00f3 c\u0169ng thu\u1ed9c d\u00e0n \u0111\u1ec1 chia h\u1ebft cho 3.<\/p>\n\n\n\n T\u1eeb \u0111\u00f3 ta t\u1ea1o d\u00e0n \u0111\u1ec1 chia h\u1ebft cho 3 hay d\u00e0n \u0111\u1ec1 t\u1ed5ng chia h\u1ebft cho 3 g\u1ed3m c\u00e1c s\u1ed1: 00, 03, 06, 09,12,15,18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75, 78, 81, 84, 87, 90, 93, 96, 99<\/p>\n\n\n\n Anh em c\u00f3 th\u1ec3 hi\u1ec3u r\u1eb1ng d\u00e0n \u0111\u1ec1 kh\u00f4ng chia h\u1ebft cho 3 g\u1ed3m nh\u1eefng s\u1ed1 c\u00f2n l\u1ea1i kh\u00f4ng thu\u1ed9c d\u00e0n \u0111\u1ec1 chia h\u1ebft cho 3, nh\u01b0 v\u1eady ta s\u1ebd c\u00f3 d\u00e0n \u0111\u1ec1 67 s\u1ed1 kh\u00f4ng chia h\u1ebft cho 3.<\/p>\n\n\n\n D\u00e0n \u0111\u1ec1 kh\u00f4ng chia h\u1ebft cho 3 hay d\u00e0n \u0111\u1ec1 t\u1ed5ng kh\u00f4ng chia h\u1ebft cho 3 s\u1ebd c\u00f3 2 lo\u1ea1i nh\u1ecf \u0111\u00f3 l\u00e0 d\u00e0n \u0111\u1ec1 chia cho 3 d\u01b0 2 v\u00e0 d\u00e0n \u0111\u1ec1 chia cho 3 d\u01b0 1.<\/p>\n\n\n\n Gi\u1ed1ng nh\u01b0 c\u00e1ch t\u1ea1o d\u00e0n \u0111\u1ec1 chia h\u1ebft cho 3, ng\u01b0\u1eddi ch\u01a1i c\u0169ng s\u1eed d\u1ee5ng d\u1ea5u hi\u1ec7u trong to\u00e1n h\u1ecdc \u0111\u1ec3 t\u1ea1o d\u00e0n \u0111\u1ec1 chia cho 3 d\u01b0 2. C\u1ee5 th\u1ec3: N\u1ebfu t\u1ed5ng \u0111\u1ec1 chia cho 3 d\u01b0 2 th\u00ec s\u1ed1 \u0111\u00f3 chia cho 3 d\u01b0 2.<\/p>\n\n\n\n V\u00ed d\u1ee5:<\/p>\n\n\n\n – S\u1ed1 65 c\u00f3 6 + 5 = 11 chia cho 3 \u0111\u01b0\u1ee3c 3 d\u01b0 2 n\u00ean 65 thu\u1ed9c d\u00e0n \u0111\u1ec1 chia cho 3 d\u01b0 2.<\/p>\n\n\n\n – S\u1ed1 59 c\u00f3 5 + 9 = 14 chia cho 3 \u0111\u01b0\u1ee3c 4 d\u01b0 2 n\u00ean 59 thu\u1ed9c d\u00e0n \u0111\u1ec1 chia cho 3 d\u01b0 2.<\/p>\n\n\n\n Nh\u01b0 v\u1eady, ta t\u1ea1o \u0111\u01b0\u1ee3c d\u00e0n \u0111\u1ec1 t\u1ed5ng kh\u00f4ng chia h\u1ebft cho 3 ( chia cho 3 d\u01b0 2) g\u1ed3m c\u00e1c s\u1ed1: 02, 05, 08, 11, 14, 17, 20, 23, 26, 29, 32, 35, 38, 41, 44, 47, 50, 53, 56, 59, 62, 65, 68, 71, 74, 77, 80, 83, 86, 89, 92, 95, 98.<\/p>\n\n\n\nD\u00e0n \u0111\u1ec1 kh\u00f4ng chia h\u1ebft cho 3 c\u00f3 bao nhi\u00eau con?<\/strong><\/h2>\n\n\n\n
D\u00e0n \u0111\u1ec1 chia cho 3 d\u01b0 2<\/strong><\/h3>\n\n\n\n