{"id":17724,"date":"2024-03-16T00:53:35","date_gmt":"2024-03-16T00:53:35","guid":{"rendered":"https:\/\/soicau3021.minhngocxoso.com\/dan-de-chia-het-cho-3-chia-3-du-1-chia-3-du-2-la-gi-gom-nhung-so-nao\/"},"modified":"2024-03-16T00:53:35","modified_gmt":"2024-03-16T00:53:35","slug":"dan-de-chia-het-cho-3-chia-3-du-1-chia-3-du-2-la-gi-gom-nhung-so-nao","status":"publish","type":"post","link":"https:\/\/caulochaydeu.com\/dan-de-chia-het-cho-3-chia-3-du-1-chia-3-du-2-la-gi-gom-nhung-so-nao\/","title":{"rendered":"D\u00e0n \u0111\u1ec1 chia h\u1ebft cho 3, chia 3 d\u01b0 1, chia 3 d\u01b0 2 l\u00e0 g\u00ec, g\u1ed3m nh\u1eefng s\u1ed1 n\u00e0o?"},"content":{"rendered":"
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D\u00e0n \u0111\u1ec1 chia h\u1ebft cho 3, chia 3 d\u01b0 1, chia 3 d\u01b0 2 l\u00e0 g\u00ec, g\u1ed3m nh\u1eefng s\u1ed1 n\u00e0o?<\/h1>\n<\/header>\n
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D\u00e0n \u0111\u1ec1 chia h\u1ebft cho 3, d\u01b0 1, d\u01b0 2 m\u1edbi \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a v\u00e0 \u00e1p d\u1ee5ng g\u1ea7n \u0111\u00e2y. Tuy nhi\u00ean c\u00e1c d\u00e0n \u0111\u1ec1 n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng kh\u00e1 th\u00e0nh c\u00f4ng b\u1edfi c\u00e1c cao th\u1ee7 l\u00f4 \u0111\u1ec1. Nh\u1eadn bi\u1ebft v\u00e0 \u0111\u1ecbnh ngh\u0129a c\u00e1c d\u00e0n \u0111\u1ec1 n\u00e0y c\u1ef1c k\u1ef3 d\u1ec5 d\u00e0ng ngay t\u1eeb t\u00ean g\u1ecdi c\u1ee7a n\u00f3. Ng\u01b0\u1eddi ta ph\u00e2n lo\u1ea1i c\u00e1c d\u00e0n \u0111\u1ec1 n\u00e0y theo s\u1ed1 d\u01b0 c\u1ee7a ph\u00e9p chia c\u1ee7a c\u00e1c s\u1ed1 trong d\u00e0n \u0111\u00f3 cho 3.<\/strong><\/p>\n

D\u00c0N \u0110\u1ec0 CHIA H\u1ebeT CHO 3<\/span><\/strong><\/h2>\n

L\u00e0 t\u1eadp h\u1ee3p c\u00e1c s\u1ed1 \u0111\u1ec1 b\u00e9 h\u01a1n ho\u1eb7c b\u1eb1ng 99 chia h\u1ebft cho 3. C\u00f3 ngh\u0129a l\u00e0 s\u1ed1 d\u01b0 trong ph\u00e9p chia c\u1ee7a 1 s\u1ed1 b\u1ea5t k\u1ef3 trong d\u00e0n \u0111\u1ec1 n\u00e0y cho 3 \u0111\u1ec1u b\u1eb1ng 0.<\/p>\n

V\u00ed d\u1ee5:<\/strong><\/em><\/p>\n

    \n
  • S\u1ed1 24 chia h\u1ebft cho 3. Hay chia cho 3 b\u1eb1ng 8 d\u01b0 0<\/em><\/li>\n
  • S\u1ed1 60 chia h\u1ebft cho 3. Hay chia cho 3 b\u1eb1ng 20 d\u01b0 0<\/em><\/li>\n<\/ul>\n

    => Hai s\u1ed1 24 v\u00e0 64 thu\u1ed9c d\u00e0n \u0111\u1ec1 chia h\u1ebft cho 3<\/em><\/p>\n

    Tuy c\u00e1ch h\u00ecnh dung v\u1ec1 d\u00e0n \u0111\u1ec1 n\u00e0y kh\u00e1 \u0111\u01a1n gi\u1ea3n. \u0110\u1ec3 d\u1ec5 nh\u1edb v\u00e0 t\u00ednh to\u00e1n nhanh h\u01a1n ta th\u01b0\u1eddng \u00e1p d\u1ee5ng 1 d\u1ea5u hi\u1ec7u trong to\u00e1n h\u1ecdc. \u0110\u00f3 l\u00e0 c\u00e1c s\u1ed1 chia h\u1ebft cho 3 khi t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 c\u1ee7a n\u00f3 chia h\u1ebft cho 3. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y l\u00e0 c\u00e1c s\u1ed1 c\u00f3 t\u1ed5ng 2 ch\u1eef s\u1ed1 chia h\u1ebft cho 3 th\u00ec thu\u1ed9c d\u00e0n n\u00e0y.<\/p>\n

    V\u00ed d\u1ee5:<\/strong><\/em><\/p>\n

      \n
    • S\u1ed1 87 c\u00f3 8 + 7 = 15 chia h\u1ebft cho 3.<\/em><\/li>\n
    • S\u1ed1 63 c\u00f3 6 + 3 = 9 chia h\u1ebft cho 3.<\/em><\/li>\n<\/ul>\n

      => Hai s\u1ed1 87 v\u00e0 63 thu\u1ed9c d\u00e0n \u0111\u1ec1 chia h\u1ebft cho 3<\/em><\/p>\n

      D\u00e0n \u0111\u1ec1 n\u00e0y g\u1ed3m c\u00f3 34 s\u1ed1 d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n

      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

      \"cach-tinh-lo-de-chuan-xac-nhat-2\"<\/p>\n

      D\u00c0N \u0110\u1ec0 CHIA CHO 3 D\u01af 1<\/span><\/strong><\/h2>\n

      C\u0169ng nh\u01b0 d\u00e0n \u0111\u1ec1 chia h\u1ebft cho 3. Ta \u00e1p d\u1ee5ng d\u1ea5u hi\u1ec7u cho 3 d\u01b0 1 c\u1ee7a s\u1ed1 t\u1ef1 nhi\u00ean \u0111\u1ec3 nh\u1eadn bi\u1ebft c\u00e1c s\u1ed1 trong d\u00e0n \u0111\u1ec1 n\u00e0y. \u0110\u00f3 l\u00e0 c\u00e1c s\u1ed1 n\u00e0y chia cho 3 d\u01b0 1 khi t\u1ed5ng 2 ch\u1eef s\u1ed1 chia 3 d\u01b0 1.<\/p>\n

      V\u00ed d\u1ee5:<\/strong><\/em><\/p>\n