{"id":14264,"date":"2025-06-07T12:29:55","date_gmt":"2025-06-07T05:29:55","guid":{"rendered":"https:\/\/www.ckconitsha.com\/vn\/?p=14264"},"modified":"2025-07-04T11:40:25","modified_gmt":"2025-07-04T04:40:25","slug":"cach-nhan-biet-va-bai-tap-ve-dau-hieu-chia-het-cho-2-chi-tiet","status":"publish","type":"post","link":"https:\/\/www.ckconitsha.com\/vn\/cach-nhan-biet-va-bai-tap-ve-dau-hieu-chia-het-cho-2-chi-tiet\/","title":{"rendered":"C\u00e1ch nh\u1eadn bi\u1ebft v\u00e0 b\u00e0i t\u1eadp v\u1ec1 d\u1ea5u hi\u1ec7u chia h\u1ebft cho 2 (chi ti\u1ebft)"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_79_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.ckconitsha.com\/vn\/cach-nhan-biet-va-bai-tap-ve-dau-hieu-chia-het-cho-2-chi-tiet\/#Cach_xac_dinh_cac_dau_hieu_chia_het_cho_2\" >C\u00e1ch x\u00e1c \u0111\u1ecbnh c\u00e1c d\u1ea5u hi\u1ec7u chia h\u1ebft cho 2<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.ckconitsha.com\/vn\/cach-nhan-biet-va-bai-tap-ve-dau-hieu-chia-het-cho-2-chi-tiet\/#Cac_hinh_thuc_toan_hoc_cua_cac_dau_hieu_duoc_chia_cho_2_pho_bien\" >C\u00e1c h\u00ecnh th\u1ee9c to\u00e1n h\u1ecdc c\u1ee7a c\u00e1c d\u1ea5u hi\u1ec7u \u0111\u01b0\u1ee3c chia cho 2 ph\u1ed5 bi\u1ebfn<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.ckconitsha.com\/vn\/cach-nhan-biet-va-bai-tap-ve-dau-hieu-chia-het-cho-2-chi-tiet\/#Mau_1_Lam_so_theo_yeu_cau\" >M\u1eabu 1: L\u00e0m s\u1ed1 theo y\u00eau c\u1ea7u<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.ckconitsha.com\/vn\/cach-nhan-biet-va-bai-tap-ve-dau-hieu-chia-het-cho-2-chi-tiet\/#Mau_2_Tim_so_khong_xac_dinh\" >M\u1eabu 2: T\u00ecm s\u1ed1 kh\u00f4ng x\u00e1c \u0111\u1ecbnh<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.ckconitsha.com\/vn\/cach-nhan-biet-va-bai-tap-ve-dau-hieu-chia-het-cho-2-chi-tiet\/#Mau_3_Ap_dung_cac_thuoc_tinh_chia_het_cho_2\" >M\u1eabu 3: \u00c1p d\u1ee5ng c\u00e1c thu\u1ed9c t\u00ednh chia h\u1ebft cho 2<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.ckconitsha.com\/vn\/cach-nhan-biet-va-bai-tap-ve-dau-hieu-chia-het-cho-2-chi-tiet\/#Huong_dan_giai_quyet_tat_ca_cac_bai_tap_chia_het_cho_2_trang_95_Sach_giao_khoa_Lop_4\" >H\u01b0\u1edbng d\u1eabn gi\u1ea3i quy\u1ebft t\u1ea5t c\u1ea3 c\u00e1c b\u00e0i t\u1eadp chia h\u1ebft cho 2 trang 95 S\u00e1ch gi\u00e1o khoa L\u1edbp 4<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.ckconitsha.com\/vn\/cach-nhan-biet-va-bai-tap-ve-dau-hieu-chia-het-cho-2-chi-tiet\/#Bai_1_Trang_95_SGK_Lop_4\" >B\u00e0i 1 Trang 95 SGK L\u1edbp 4<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.ckconitsha.com\/vn\/cach-nhan-biet-va-bai-tap-ve-dau-hieu-chia-het-cho-2-chi-tiet\/#Bai_2_Trang_95_SGK_Lop_4\" >B\u00e0i 2 Trang 95 SGK L\u1edbp 4<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.ckconitsha.com\/vn\/cach-nhan-biet-va-bai-tap-ve-dau-hieu-chia-het-cho-2-chi-tiet\/#Bai_3_Trang_95_SGK_Lop_4\" >B\u00e0i 3 Trang 95 SGK L\u1edbp 4<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.ckconitsha.com\/vn\/cach-nhan-biet-va-bai-tap-ve-dau-hieu-chia-het-cho-2-chi-tiet\/#Bai_4_Trang_95_SGK_Lop_4\" >B\u00e0i 4 Trang 95 SGK L\u1edbp 4<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.ckconitsha.com\/vn\/cach-nhan-biet-va-bai-tap-ve-dau-hieu-chia-het-cho-2-chi-tiet\/#Tom_tat_cac_bai_tap_ve_cac_dau_hieu_phan_chia_theo_2_tu_dong\" >T\u00f3m t\u1eaft c\u00e1c b\u00e0i t\u1eadp v\u1ec1 c\u00e1c d\u1ea5u hi\u1ec7u ph\u00e2n chia theo 2 t\u1ef1 \u0111\u1ed9ng<\/a><\/li><\/ul><\/nav><\/div>\n<\/p>\n<p>Trong n\u1ed9i dung c\u1ee7a b\u00e0i vi\u1ebft, ch\u00fang t\u00f4i s\u1ebd tr\u1ea3i qua ki\u1ebfn \u200b\u200bth\u1ee9c c\u01a1 b\u1ea3n v\u1ec1 c\u00e1c d\u1ea5u hi\u1ec7u ph\u00e2n chia v\u00e0o ng\u00e0y 2. Tham kh\u1ea3o v\u00e0 th\u1ef1c h\u00e0nh ngay b\u00e2y gi\u1edd!<\/p>\n<p>                        Xem t\u1ea5t c\u1ea3<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cach_xac_dinh_cac_dau_hieu_chia_het_cho_2\"><\/span>C\u00e1ch x\u00e1c \u0111\u1ecbnh c\u00e1c d\u1ea5u hi\u1ec7u chia h\u1ebft cho 2<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">\u0110\u1ec3 x\u00e1c \u0111\u1ecbnh xem m\u1ed9t s\u1ed1 c\u00f3 chia h\u1ebft cho 2 hay kh\u00f4ng, ch\u00fang ta ch\u1ec9 c\u1ea7n xem x\u00e9t ch\u1eef s\u1ed1 k\u1ebft th\u00fac c\u1ee7a s\u1ed1 \u0111\u00f3. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t quy t\u1eafc \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c d\u1ea5u hi\u1ec7u chia cho 2:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">N\u1ebfu s\u1ed1 k\u1ebft th\u00fac c\u1ee7a s\u1ed1 \u0111\u01b0\u1ee3c xem x\u00e9t l\u00e0 ch\u1eb5n <em>(0, 2, 4, 6 ho\u1eb7c 8)<\/em> Sau \u0111\u00f3, con s\u1ed1 \u0111\u00f3 chia h\u1ebft cho 2.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">N\u1ebfu s\u1ed1 k\u1ebft th\u00fac c\u1ee7a s\u1ed1 \u0111\u01b0\u1ee3c xem x\u00e9t l\u00e0 m\u1ed9t s\u1ed1 l\u1ebb <em>(1, 3, 5, 7 ho\u1eb7c 9)<\/em> Sau \u0111\u00f3, con s\u1ed1 \u0111\u00f3 kh\u00f4ng chia h\u1ebft cho 2.<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">V\u00ed d\u1ee5:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">S\u1ed1 10 chia h\u1ebft cho 2 v\u00ec n\u00f3 c\u00f3 s\u1ed1 k\u1ebft th\u00fac l\u00e0 0.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">S\u1ed1 13 kh\u00f4ng chia h\u1ebft cho 2 v\u00ec n\u00f3 c\u00f3 s\u1ed1 k\u1ebft th\u00fac l\u00e0 3.<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/1-dau-hieu-chia-het-cho-2.png\" alt=\"C\u00e1ch x\u00e1c \u0111\u1ecbnh c\u00e1c d\u1ea5u hi\u1ec7u chia cho 2. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">B\u00ean c\u1ea1nh \u0111\u00f3, b\u1ea1n c\u1ea7n nh\u1edb c\u00e1c thu\u1ed9c t\u00ednh c\u01a1 b\u1ea3n c\u1ee7a m\u1ed9t s\u1ed1 chia h\u1ebft cho 2. C\u1ee5 th\u1ec3 nh\u01b0 sau:<\/p>\n<ol>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">S\u1ed1 2 l\u00e0 s\u1ed1 chia h\u1ebft cho 2 nh\u1ecf nh\u1ea5t trong h\u1ec7 th\u1ed1ng th\u1eadp ph\u00e2n.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Kh\u00f4ng c\u00f3 s\u1ed1 l\u01b0\u1ee3ng chia h\u1ebft cho 2 l\u1edbn nh\u1ea5t.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">N\u1ebfu m\u1ed9t s\u1ed1 chia h\u1ebft cho c\u00e1c s\u1ed1 ch\u1eb5n <em>(4, 6, 8, 10, 12, &#8230;) <\/em>Sau \u0111\u00f3 t\u1ea5t c\u1ea3 chia cho 2.<\/p>\n<\/li>\n<\/ol>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cac_hinh_thuc_toan_hoc_cua_cac_dau_hieu_duoc_chia_cho_2_pho_bien\"><\/span>C\u00e1c h\u00ecnh th\u1ee9c to\u00e1n h\u1ecdc c\u1ee7a c\u00e1c d\u1ea5u hi\u1ec7u \u0111\u01b0\u1ee3c chia cho 2 ph\u1ed5 bi\u1ebfn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c lo\u1ea1i b\u00e0i t\u1eadp to\u00e1n v\u1ec1 c\u00e1c d\u1ea5u hi\u1ec7u chia h\u1ebft cho 2 ph\u1ed5 bi\u1ebfn trong to\u00e1n h\u1ecdc. Ti\u1ebft ki\u1ec7m \u0111\u1ec3 th\u1ef1c h\u00e0nh d\u1ec5 d\u00e0ng v\u00e0 chu\u1ea9n b\u1ecb cho c\u00e1c k\u1ef3 thi s\u1eafp t\u1edbi!<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_1_Lam_so_theo_yeu_cau\"><\/span>M\u1eabu 1: L\u00e0m s\u1ed1 theo y\u00eau c\u1ea7u<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">M\u1ed9t trong nh\u1eefng lo\u1ea1i v\u1ea5n \u0111\u1ec1 v\u1ec1 c\u00e1c d\u1ea5u hi\u1ec7u k\u00fd k\u1ebft c\u1ee7a hai c\u01a1 b\u1ea3n nh\u1ea5t l\u00e0 s\u1ed1 theo y\u00eau c\u1ea7u c\u1ee7a v\u1ea5n \u0111\u1ec1. \u1ede \u0111\u00e2y, b\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u n\u00eau c\u00e1c s\u1ed1 \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u1ee7a v\u1ea5n \u0111\u1ec1 v\u1ec1 s\u1ed1 l\u01b0\u1ee3ng ch\u1eef s\u1ed1 <em>(ch\u1eb3ng h\u1ea1n nh\u01b0: 5 -digit s\u1ed1, s\u1ed1 3 -digit, &#8230;) <\/em>V\u00e0 s\u1ed1 l\u01b0\u1ee3ng ph\u1ea3i \u0111\u01b0\u1ee3c chia cho 2.<\/p>\n<p dir=\"ltr\">V\u00ed d\u1ee5: Vi\u1ebft 5 s\u1ed1 v\u1edbi 5 ch\u1eef s\u1ed1 kh\u00e1c nhau v\u00e0 chia h\u1ebft cho 2.<\/p>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p: Xem x\u00e9t t\u1ea5t c\u1ea3 c\u00e1c ch\u1eef s\u1ed1 t\u1eeb 0 \u0111\u1ebfn 9, lo\u1ea1i b\u1ecf c\u00e1c ch\u1eef s\u1ed1 l\u1ebb (1, 3, 5, 7, 9) v\u00e0 ch\u1ecdn 5 ch\u1eef s\u1ed1 kh\u00e1c nhau v\u1edbi s\u1ed1 k\u1ebft th\u00fac l\u00e0 ch\u1eb5n (0, 2, 4, 6, 8).<\/p>\n<p dir=\"ltr\">C\u00e2u tr\u1ea3 l\u1eddi: 24680, 46802, 86204, 80462, 60248.<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/2-dau-hieu-chia-het-cho-2.png\" alt=\"H\u00ecnh th\u1ee9c to\u00e1n h\u1ecdc c\u1ee7a c\u00e1c d\u1ea5u hi\u1ec7u \u0111\u01b0\u1ee3c chia cho 2: l\u00e0m s\u1ed1 theo y\u00eau c\u1ea7u. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_2_Tim_so_khong_xac_dinh\"><\/span>M\u1eabu 2: T\u00ecm s\u1ed1 kh\u00f4ng x\u00e1c \u0111\u1ecbnh<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">T\u00ecm ki\u1ebfm nh\u1eefng con s\u1ed1 ch\u01b0a bi\u1ebft l\u00e0 m\u1ed9t trong nh\u1eefng lo\u1ea1i to\u00e1n h\u1ecdc c\u1ee7a c\u00e1c d\u1ea5u hi\u1ec7u chia h\u1ebft cho 2 c\u1ef1c k\u1ef3 th\u00fa v\u1ecb. Trong lo\u1ea1i b\u00e0i t\u1eadp n\u00e0y, b\u1ea1n c\u1ea7n t\u00ecm c\u00e1ch \u1ea9n \u0111\u1ec3 s\u1ed1 l\u01b0\u1ee3ng chia h\u1ebft cho 2 <em>(ho\u1eb7c theo y\u00eau c\u1ea7u c\u1ee7a v\u1ea5n \u0111\u1ec1)<\/em>.<\/p>\n<p dir=\"ltr\">V\u00ed d\u1ee5: T\u00ecm x, y cho s\u1ed1 1996xy chia cho 2?<\/p>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p: 1996xy \u0111\u01b0\u1ee3c chia cho 2 n\u1ebfu y l\u00e0 s\u1ed1 ch\u1eb5n (0, 2, 4, 6, 8) v\u00e0 x l\u00e0 b\u1ea5t k\u1ef3 s\u1ed1 n\u00e0o.<\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi: X l\u00e0 s\u1ed1 t\u1ef1 nhi\u00ean t\u1eeb 0 \u0111\u1ebfn 9; Y l\u00e0 s\u1ed1 0, 2, 4, 6, 8.<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_3_Ap_dung_cac_thuoc_tinh_chia_het_cho_2\"><\/span>M\u1eabu 3: \u00c1p d\u1ee5ng c\u00e1c thu\u1ed9c t\u00ednh chia h\u1ebft cho 2<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u00c1p d\u1ee5ng c\u00e1c thu\u1ed9c t\u00ednh chia h\u1ebft cho 2 l\u00e0 h\u00ecnh th\u1ee9c to\u00e1n h\u1ecdc ph\u1ed5 bi\u1ebfn nh\u1ea5t, trong lo\u1ea1i b\u00e0i t\u1eadp n\u00e0y, b\u1ea1n c\u1ea7n \u00e1p d\u1ee5ng c\u00e1c d\u1ea5u hi\u1ec7u v\u00e0 thu\u1ed9c t\u00ednh chia h\u1ebft cho 2 \u0111\u1ec3 ch\u1ee9ng minh c\u00e1c y\u00eau c\u1ea7u c\u1ee7a v\u1ea5n \u0111\u1ec1.<\/p>\n<p dir=\"ltr\">V\u00ed d\u1ee5, ch\u1ee9ng minh r\u1eb1ng s\u1ed1 45987061956 lu\u00f4n \u0111\u01b0\u1ee3c chia cho 2?<\/p>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p: D\u1ef1a tr\u00ean c\u00e1c thu\u1ed9c t\u00ednh chia cho 2, ch\u00fang ta th\u1ea5y s\u1ed1 k\u1ebft th\u00fac l\u00e0 6 chia cho 6 (s\u1ed1 ch\u1eb5n). Ho\u1eb7c, d\u1ef1a tr\u00ean c\u00e1c d\u1ea5u hi\u1ec7u ph\u00e2n chia cho 2, ch\u00fang ta th\u1ea5y s\u1ed1 k\u1ebft th\u00fac l\u00e0 6 (s\u1ed1 ch\u1eb5n). Do \u0111\u00f3, ch\u00fang t\u00f4i c\u00f3 th\u1ec3 k\u1ebft lu\u1eadn s\u1ed1 45987061956 lu\u00f4n chia cho 2.<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/3-dau-hieu-chia-het-cho-2.png\" alt=\"\u0110\u1ecbnh d\u1ea1ng to\u00e1n h\u1ecdc chia h\u1ebft cho 2: \u00e1p d\u1ee5ng c\u00e1c thu\u1ed9c t\u00ednh chia h\u1ebft. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Huong_dan_giai_quyet_tat_ca_cac_bai_tap_chia_het_cho_2_trang_95_Sach_giao_khoa_Lop_4\"><\/span>H\u01b0\u1edbng d\u1eabn gi\u1ea3i quy\u1ebft t\u1ea5t c\u1ea3 c\u00e1c b\u00e0i t\u1eadp chia h\u1ebft cho 2 trang 95 S\u00e1ch gi\u00e1o khoa L\u1edbp 4<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">\u0110\u1ec3 gi\u00fap h\u1ecdc sinh d\u1ec5 d\u00e0ng th\u1ef1c h\u00e0nh c\u00e1c b\u00e0i t\u1eadp chia h\u1ebft cho 2, \u0111\u00e2y l\u00e0 h\u01b0\u1edbng d\u1eabn chi ti\u1ebft v\u1ec1 c\u00e1ch gi\u1ea3i quy\u1ebft c\u00e1c b\u00e0i t\u1eadp tr\u00ean trang 95 c\u1ee7a s\u00e1ch gi\u00e1o khoa l\u1edbp 4.<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_1_Trang_95_SGK_Lop_4\"><\/span>B\u00e0i 1 Trang 95 SGK L\u1edbp 4<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ec1 t\u00e0i:<\/p>\n<p dir=\"ltr\">C\u1ee7a s\u1ed1 35; 89; 98; 1000; 744; 867; 7536; 84683; 5782; 8401:<\/p>\n<p dir=\"ltr\">M\u1ed9t. S\u1ed1 n\u00e0o chia h\u1ebft cho 2?<\/p>\n<p dir=\"ltr\">b. S\u1ed1 n\u00e0o kh\u00f4ng chia h\u1ebft cho 2?<\/p>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">C\u00e1c s\u1ed1 cu\u1ed1i th\u1eadm ch\u00ed \u0111\u01b0\u1ee3c chia cho 2.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">C\u00e1c s\u1ed1 cu\u1ed1i l\u00e0 s\u1ed1 l\u1ebb, ch\u00fang kh\u00f4ng chia cho 2.<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi:<\/p>\n<p dir=\"ltr\">M\u1ed9t. 98; 1000; 744; 5782; 7536.<\/p>\n<p dir=\"ltr\">b. 35; 89; 867; 8401; 84683.<\/p>\n<p dir=\"ltr\">\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_2_Trang_95_SGK_Lop_4\"><\/span>B\u00e0i 2 Trang 95 SGK L\u1edbp 4<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ec1 t\u00e0i:<\/p>\n<p dir=\"ltr\">M\u1ed9t. Vi\u1ebft m\u1ed9t s\u1ed1 b\u1ed1n ch\u1eef s\u1ed1 c\u00f3 hai ch\u1eef s\u1ed1, m\u1ed7i s\u1ed1 l\u00e0 chia h\u1ebft cho 2.<\/p>\n<p dir=\"ltr\">b. Vi\u1ebft hai s\u1ed1 c\u00f3 ba ch\u1eef s\u1ed1, m\u1ed7i s\u1ed1 kh\u00f4ng chia h\u1ebft cho 2.<\/p>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">C\u00e1c s\u1ed1 cu\u1ed1i th\u1eadm ch\u00ed \u0111\u01b0\u1ee3c chia cho 2.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">C\u00e1c s\u1ed1 cu\u1ed1i l\u00e0 s\u1ed1 l\u1ebb, ch\u00fang kh\u00f4ng chia cho 2.<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi:<\/p>\n<p dir=\"ltr\">a) 44; 98; 68; 26.<\/p>\n<p dir=\"ltr\">b) 397; 675.<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/4-dau-hieu-chia-het-cho-2.png\" alt=\"H\u01b0\u1edbng d\u1eabn gi\u1ea3i quy\u1ebft c\u00e1c b\u00e0i t\u1eadp v\u1ec1 c\u00e1c d\u1ea5u hi\u1ec7u ph\u00e2n chia cho 2 s\u00e1ch gi\u00e1o khoa. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_3_Trang_95_SGK_Lop_4\"><\/span>B\u00e0i 3 Trang 95 SGK L\u1edbp 4<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ec1 t\u00e0i:<\/p>\n<p dir=\"ltr\">M\u1ed9t. V\u1edbi ba ch\u1eef s\u1ed1 3; 4; 6 Vi\u1ebft th\u1eadm ch\u00ed ba s\u1ed1 ch\u1eef s\u1ed1, m\u1ed7i s\u1ed1 c\u00f3 c\u1ea3 ba ch\u1eef s\u1ed1.<\/p>\n<p dir=\"ltr\">b. V\u1edbi ba ch\u1eef s\u1ed1 3; 5; 6 Vi\u1ebft c\u00e1c s\u1ed1 l\u1ebb ba ch\u1eef s\u1ed1, m\u1ed7i s\u1ed1 c\u00f3 c\u1ea3 3 ch\u1eef s\u1ed1.<\/p>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p:<\/p>\n<p dir=\"ltr\">\u00c1p d\u1ee5ng c\u00e1c thu\u1ed9c t\u00ednh c\u1ee7a s\u1ed1 chia cho 2, ch\u00fang t\u00f4i c\u00f3 s\u1ed1 th\u1eadm ch\u00ed c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia cho 2 v\u00e0 s\u1ed1 l\u1ebb l\u00e0 s\u1ed1 kh\u00f4ng th\u1ec3 chia cho 2.<\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi:<\/p>\n<p dir=\"ltr\">M\u1ed9t. 346; 364; 436; 634.<\/p>\n<p dir=\"ltr\">b. 365; 563; 635; 653.<\/p>\n<table style=\"border-collapse: collapse;width: 100.01%;background-color: #fbeeb8\" border=\"1\">\n<tr>\n<td style=\"width: 98.5932%\">\n<p style=\"text-align: center\">\u0110\u1eebng b\u1ecf l\u1ee1 !!<\/p>\n<p style=\"text-align: center\">Ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n h\u1ecdc b\u1eb1ng ti\u1ebfng Anh, gi\u00fap ph\u00e1t tri\u1ec3n t\u01b0 duy theo c\u00e1ch to\u00e0n di\u1ec7n nh\u1ea5t.<\/p>\n<p style=\"text-align: center\">Nh\u1eadn t\u1ed1i \u0111a 40% \u01b0u \u0111\u00e3i ngay t\u1ea1i \u0111\u00e2y!<img decoding=\"async\" style=\"margin-left: auto;margin-right: auto\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/taimienphiMM.png\" width=\"185\"><\/p>\n<\/td>\n<\/tr>\n<\/table>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_4_Trang_95_SGK_Lop_4\"><\/span>B\u00e0i 4 Trang 95 SGK L\u1edbp 4<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ec1 t\u00e0i:<\/p>\n<p dir=\"ltr\">M\u1ed9t. Vi\u1ebft s\u1ed1 ch\u1eb5n th\u00edch h\u1ee3p trong d\u1ea5u ch\u1ea5m:<\/p>\n<p dir=\"ltr\">340; 342; 344; &#8230;; &#8230;; 350.<\/p>\n<p dir=\"ltr\">b. Vi\u1ebft c\u00e1c s\u1ed1 l\u1ebb th\u00edch h\u1ee3p trong d\u1ea5u ch\u1ea5m:<\/p>\n<p dir=\"ltr\">8347; 8349; 8351; &#8230;; &#8230;; 8357.<\/p>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p:<\/p>\n<p dir=\"ltr\">\u00c1p d\u1ee5ng c\u00e1c thu\u1ed9c t\u00ednh c\u1ee7a s\u1ed1 chia cho 2, ch\u00fang t\u00f4i c\u00f3 s\u1ed1 th\u1eadm ch\u00ed c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia cho 2 v\u00e0 s\u1ed1 l\u1ebb l\u00e0 s\u1ed1 kh\u00f4ng th\u1ec3 chia cho 2.<\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi:<\/p>\n<p dir=\"ltr\">M\u1ed9t. 340; 342; 344; 346; 348; 350.<\/p>\n<p dir=\"ltr\">b. 8347; 8349; 8351; 8353; 8355; 8357.<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/5-dau-hieu-chia-het-cho-2.png\" alt=\"H\u01b0\u1edbng d\u1eabn gi\u1ea3i quy\u1ebft c\u00e1c b\u00e0i t\u1eadp v\u1ec1 c\u00e1c d\u1ea5u hi\u1ec7u ph\u00e2n chia cho 2 s\u00e1ch gi\u00e1o khoa. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tom_tat_cac_bai_tap_ve_cac_dau_hieu_phan_chia_theo_2_tu_dong\"><\/span>T\u00f3m t\u1eaft c\u00e1c b\u00e0i t\u1eadp v\u1ec1 c\u00e1c d\u1ea5u hi\u1ec7u ph\u00e2n chia theo 2 t\u1ef1 \u0111\u1ed9ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">B\u00e0i t\u1eadp 1: Li\u1ec7t k\u00ea t\u1ea5t c\u1ea3 3 s\u1ed1 t\u1ef1 nhi\u00ean v\u00e0 ph\u00e2n chia cho 2.<\/p>\n<p dir=\"ltr\">B\u00e0i t\u1eadp 2: Cho chu\u1ed7i 25, 36, 48, 57, 62, 74, 89. X\u00e1c \u0111\u1ecbnh s\u1ed1 n\u00e0o chia h\u1ebft cho 2.<\/p>\n<p dir=\"ltr\">B\u00e0i t\u1eadp 3: T\u00ecm c\u00e1c s\u1ed1 chia h\u1ebft cho 2 trong chu\u1ed7i 100, 105, 110, 115, 120, 125, 130, 135.<\/p>\n<p dir=\"ltr\">B\u00e0i t\u1eadp 4: Vi\u1ebft s\u1ed1 4 -Digit, k\u1ebft th\u00fac l\u00e0 8.<\/p>\n<p dir=\"ltr\">B\u00e0i t\u1eadp 5: Ch\u1ee9ng minh r\u1eb1ng s\u1ed1 123456789 chia h\u1ebft cho 2.<\/p>\n<p dir=\"ltr\">B\u00e0i t\u1eadp 6: T\u00ecm x sao cho 37X chia h\u1ebft cho 2.<\/p>\n<p dir=\"ltr\">B\u00e0i t\u1eadp 7: Vi\u1ebft 3 s\u1ed1 ch\u1eef s\u1ed1 chia cho 2, bi\u1ebft r\u1eb1ng t\u1ea5t c\u1ea3 c\u00e1c ch\u1eef s\u1ed1 \u0111\u1ec1u kh\u00e1c nhau.<\/p>\n<p dir=\"ltr\">B\u00e0i t\u1eadp 8: T\u00ecm s\u1ed1 nguy\u00ean d\u01b0\u01a1ng x sao cho 157&#215;2 chia h\u1ebft cho 2.<\/p>\n<p dir=\"ltr\">B\u00e0i t\u1eadp 9: Vi\u1ebft s\u1ed1 6 -Digit chia cho 2, bi\u1ebft r\u1eb1ng s\u1ed1 ch\u1ec9 bao g\u1ed3m hai s\u1ed1 4 v\u00e0 b\u1ed1n s\u1ed1 8.<\/p>\n<p dir=\"ltr\">B\u00e0i t\u1eadp 10: Ch\u1ee9ng minh r\u1eb1ng s\u1ed1 38573 kh\u00f4ng chia h\u1ebft cho 2.<\/p>\n<p dir=\"ltr\">Xem th\u00eam:<\/p>\n<ol>\n<li dir=\"ltr\">Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math &#8211; \u1ee8ng d\u1ee5ng to\u00e1n h\u1ecdc b\u1eb1ng ti\u1ebfng Anh s\u1ed1 1 cho tr\u1ebb m\u1eabu gi\u00e1o &amp; tr\u01b0\u1eddng ti\u1ec3u h\u1ecdc<\/li>\n<li dir=\"ltr\">C\u00e1ch x\u00e1c \u0111\u1ecbnh v\u00e0 b\u00e0i t\u1eadp v\u1ec1 c\u00e1c d\u1ea5u hi\u1ec7u ph\u00e2n chia cho 4<\/li>\n<\/ol>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi Ph\u1ea7n:<\/p>\n<p dir=\"ltr\">B\u00e0i t\u1eadp 1: 100, 102, 104, &#8230;, 998.<\/p>\n<p dir=\"ltr\">B\u00e0i t\u1eadp 2: 6, 48, 62, 74.<\/p>\n<p dir=\"ltr\">B\u00e0i t\u1eadp 3: 100, 110, 120, 130.<\/p>\n<p dir=\"ltr\">B\u00e0i t\u1eadp 4: 1008, 2008, &#8230;, 9998.<\/p>\n<p dir=\"ltr\">B\u00e0i t\u1eadp 5: S\u1ed1 123456789 kh\u00f4ng \u0111\u01b0\u1ee3c chia cho 2.<\/p>\n<p dir=\"ltr\">B\u00e0i t\u1eadp 6: \u0110\u1eb7t 37x chia h\u1ebft cho 2, ch\u00fang ta c\u1ea7n X l\u00e0 m\u1ed9t s\u1ed1 ch\u1eb5n, v\u00ec v\u1eady X c\u00f3 th\u1ec3 l\u00e0 0, 2, 4, 6, 8.<\/p>\n<p dir=\"ltr\">B\u00e0i t\u1eadp 7: 102, 104, 106, 108, 120, 124, 126, 128, 140, 142, &#8230;<\/p>\n<p dir=\"ltr\">B\u00e0i t\u1eadp 8: 157&#215;2 chia h\u1ebft cho 2 v\u1edbi t\u1ea5t c\u1ea3 X, v\u00ec cu\u1ed1i n\u0103m 157&#215;2 l\u00e0 s\u1ed1 2 (chia cho 2).<\/p>\n<p dir=\"ltr\">B\u00e0i t\u1eadp 9: 488888, 844888, 888488, 888848, 888884.<\/p>\n<p dir=\"ltr\">B\u00e0i t\u1eadp 10: S\u1ed1 38573 kh\u00f4ng chia h\u1ebft cho 2, v\u00ec s\u1ed1 k\u1ebft th\u00fac c\u1ee7a 38573 l\u00e0 s\u1ed1 3 (s\u1ed1 l\u1ebb).<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/6-dau-hieu-chia-het-cho-2.jpg\" alt=\"Shining Home - Gia \u0111\u00ecnh Anh Ng\u1eef Math - \u1ee8ng d\u1ee5ng to\u00e1n h\u1ecdc b\u1eb1ng ti\u1ebfng Anh s\u1ed1 1 cho tr\u1ebb m\u1eabu gi\u00e1o &amp; tr\u1ebb em ti\u1ec3u h\u1ecdc. (\u1ea2nh: Kh\u1ec9)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">Tr\u00ean \u0111\u00e2y l\u00e0 t\u1ea5t c\u1ea3 ki\u1ebfn \u200b\u200bth\u1ee9c v\u1ec1 c\u00e1c d\u1ea5u hi\u1ec7u k\u00fd k\u1ebft c\u1ee7a 2 m\u00e0 Kh\u1ec9 mu\u1ed1n chia s\u1ebb v\u1edbi b\u1ea1n. N\u1ebfu b\u1ea1n \u0111ang t\u00ecm ki\u1ebfm m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p h\u1ecdc to\u00e1n hi\u1ec7u qu\u1ea3 cho tr\u1ebb em c\u1ee7a b\u1ea1n, \u0111\u1eebng b\u1ecf l\u1ee1 to\u00e1n h\u1ecdc kh\u1ec9 &#8211; \u00e1p d\u1ee5ng to\u00e1n h\u1ecdc b\u1eb1ng ti\u1ebfng Anh hi\u1ec7n \u0111\u1ea1i. \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng ph\u1ea7n m\u1ec1m \u0111\u01b0\u1ee3c nhi\u1ec1u ph\u1ee5 huynh tin t\u01b0\u1edfng v\u00ec ch\u1ea5t l\u01b0\u1ee3ng n\u1ed9i dung cao<em> (\u0110\u01b0\u1ee3c x\u00e2y d\u1ef1ng d\u1ef1a tr\u00ean c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh gi\u00e1o d\u1ee5c ph\u1ed5 th\u00f4ng m\u1edbi) <\/em>v\u00e0 ph\u01b0\u01a1ng ph\u00e1p h\u1ecdc t\u1eadp th\u00fa v\u1ecb (tr\u00f2 ch\u01a1i, &#8230;).<\/p>\n<p>\u0110\u0103ng k\u00fd t\u00e0i kho\u1ea3n c\u1ee7a b\u1ea1n ngay t\u1ea1i \u0111\u00e2y \u0111\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c gi\u1ea3m gi\u00e1 t\u1edbi 40% v\u00e0 t\u00e0i li\u1ec7u h\u1ecdc t\u1eadp mi\u1ec5n ph\u00ed!<\/p>\n<p>Ngu\u1ed3n: <a href=\"https:\/\/www.ckconitsha.com\/vn\/\">https:\/\/www.ckconitsha.com\/vn\/<\/a> T\u00e1c gi\u1ea3: <a href=\"https:\/\/www.ckconitsha.com\/vn\/author\/nguyenlandung\">Nguy\u1ec5n L\u00e2n d\u0169ng<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Trong n\u1ed9i dung c\u1ee7a b\u00e0i vi\u1ebft, ch\u00fang t\u00f4i s\u1ebd tr\u1ea3i qua ki\u1ebfn \u200b\u200bth\u1ee9c c\u01a1 b\u1ea3n v\u1ec1 c\u00e1c d\u1ea5u hi\u1ec7u ph\u00e2n chia v\u00e0o ng\u00e0y 2. Tham kh\u1ea3o v\u00e0 th\u1ef1c h\u00e0nh ngay b\u00e2y gi\u1edd! Xem t\u1ea5t c\u1ea3 C\u00e1ch x\u00e1c \u0111\u1ecbnh c\u00e1c d\u1ea5u hi\u1ec7u chia h\u1ebft cho 2 \u0110\u1ec3 x\u00e1c \u0111\u1ecbnh xem m\u1ed9t s\u1ed1 c\u00f3 chia h\u1ebft cho&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[100],"tags":[],"class_list":["post-14264","post","type-post","status-publish","format-standard","hentry","category-kien-thuc"],"_links":{"self":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/14264","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/comments?post=14264"}],"version-history":[{"count":2,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/14264\/revisions"}],"predecessor-version":[{"id":17122,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/14264\/revisions\/17122"}],"wp:attachment":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/media?parent=14264"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/categories?post=14264"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/tags?post=14264"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}