{"id":14882,"date":"2025-06-10T16:52:15","date_gmt":"2025-06-10T09:52:15","guid":{"rendered":"https:\/\/www.ckconitsha.com\/vn\/?p=14882"},"modified":"2025-07-05T16:10:05","modified_gmt":"2025-07-05T09:10:05","slug":"ly-thuyet-cach-hoc-toan-lop-4-chia-cho-so-co-ba-chu-so-chi-tiet","status":"publish","type":"post","link":"https:\/\/www.ckconitsha.com\/vn\/ly-thuyet-cach-hoc-toan-lop-4-chia-cho-so-co-ba-chu-so-chi-tiet\/","title":{"rendered":"L\u00fd thuy\u1ebft &amp; c\u00e1ch h\u1ecdc to\u00e1n l\u1edbp 4 chia cho s\u1ed1 c\u00f3 ba ch\u1eef s\u1ed1 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\/ly-thuyet-cach-hoc-toan-lop-4-chia-cho-so-co-ba-chu-so-chi-tiet\/#Kien_thuc_duoc_chuan_bi_khi_hoc_Phan_chia_ba_chu_so_4\" >Ki\u1ebfn th\u1ee9c \u0111\u01b0\u1ee3c chu\u1ea9n b\u1ecb khi h\u1ecdc Ph\u00e2n chia ba ch\u1eef s\u1ed1 4<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.ckconitsha.com\/vn\/ly-thuyet-cach-hoc-toan-lop-4-chia-cho-so-co-ba-chu-so-chi-tiet\/#Ghi_nho\" >Ghi nh\u1edb<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.ckconitsha.com\/vn\/ly-thuyet-cach-hoc-toan-lop-4-chia-cho-so-co-ba-chu-so-chi-tiet\/#Hieu_phan_chia_la_gi\" >Hi\u1ec3u ph\u00e2n chia l\u00e0 g\u00ec?<\/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\/ly-thuyet-cach-hoc-toan-lop-4-chia-cho-so-co-ba-chu-so-chi-tiet\/#Phan_biet_su_phan_chia_khong_con_sot_lai_va_con_lai\" >Ph\u00e2n bi\u1ec7t s\u1ef1 ph\u00e2n chia kh\u00f4ng c\u00f2n s\u00f3t l\u1ea1i v\u00e0 c\u00f2n l\u1ea1i<\/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\/ly-thuyet-cach-hoc-toan-lop-4-chia-cho-so-co-ba-chu-so-chi-tiet\/#Xem_xet_va_lop_so_tu_nhien\" >Xem x\u00e9t v\u00e0 l\u1edbp s\u1ed1 t\u1ef1 nhi\u00ean<\/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\/ly-thuyet-cach-hoc-toan-lop-4-chia-cho-so-co-ba-chu-so-chi-tiet\/#Huong_dan_toan_hoc_cap_4_duoc_chia_cho_ba_so_chu_so\" >H\u01b0\u1edbng d\u1eabn to\u00e1n h\u1ecdc c\u1ea5p 4 \u0111\u01b0\u1ee3c chia cho ba s\u1ed1 ch\u1eef s\u1ed1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.ckconitsha.com\/vn\/ly-thuyet-cach-hoc-toan-lop-4-chia-cho-so-co-ba-chu-so-chi-tiet\/#Mot_hinh_thuc_cac_bai_tap_tu_co_ban_den_nang_cao_ve_phan_chia_theo_3_so_chu_so\" >M\u1ed9t h\u00ecnh th\u1ee9c c\u00e1c b\u00e0i t\u1eadp t\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao v\u1ec1 ph\u00e2n chia theo 3 s\u1ed1 ch\u1eef s\u1ed1<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.ckconitsha.com\/vn\/ly-thuyet-cach-hoc-toan-lop-4-chia-cho-so-co-ba-chu-so-chi-tiet\/#Mau_1_Dat_tinh_toan_va_tinh_toan\" >M\u1eabu 1: \u0110\u1eb7t t\u00ednh to\u00e1n v\u00e0 t\u00ednh to\u00e1n<\/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\/ly-thuyet-cach-hoc-toan-lop-4-chia-cho-so-co-ba-chu-so-chi-tiet\/#Mau_2_Tinh_gia_tri_cua_bieu_thuc\" >M\u1eabu 2: T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c<\/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\/ly-thuyet-cach-hoc-toan-lop-4-chia-cho-so-co-ba-chu-so-chi-tiet\/#Mau_3_Van_de_ung_dung\" >M\u1eabu 3: V\u1ea5n \u0111\u1ec1 \u1ee9ng d\u1ee5ng<\/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\/ly-thuyet-cach-hoc-toan-lop-4-chia-cho-so-co-ba-chu-so-chi-tiet\/#Bi_quyet_hoc_toan_lop_4_duoc_chia_cho_so_ba_chu_so\" >B\u00ed quy\u1ebft h\u1ecdc to\u00e1n l\u1edbp 4 \u0111\u01b0\u1ee3c chia cho s\u1ed1 ba ch\u1eef s\u1ed1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.ckconitsha.com\/vn\/ly-thuyet-cach-hoc-toan-lop-4-chia-cho-so-co-ba-chu-so-chi-tiet\/#Bai_tap_phan_chia_ba_chu_so_o_lop_4_de_con_ban_thuc_hanh\" >B\u00e0i t\u1eadp ph\u00e2n chia ba ch\u1eef s\u1ed1 \u1edf l\u1edbp 4 \u0111\u1ec3 con b\u1ea1n th\u1ef1c h\u00e0nh<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.ckconitsha.com\/vn\/ly-thuyet-cach-hoc-toan-lop-4-chia-cho-so-co-ba-chu-so-chi-tiet\/#Ket_luan\" >K\u1ebft lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n<\/p>\n<p>Trong l\u1edbp 4, t\u00ednh to\u00e1n chia s\u1ebb c\u00f3 ph\u1ea7n n\u00e2ng cao h\u01a1n khi em b\u00e9 s\u1ebd h\u1ecdc to\u00e1n h\u1ecdc l\u1edbp 4 chia cho m\u1ed9t s\u1ed1 ba ch\u1eef s\u1ed1. V\u00ec v\u1eady, \u0111\u1ec3 gi\u00fap con b\u1ea1n h\u1ecdc h\u1ecfi, d\u1ec5 d\u00e0ng chinh ph\u1ee5c ki\u1ebfn \u200b\u200bth\u1ee9c n\u00e0y, h\u00e3y \u0111\u1ec3 kh\u1ec9 ngay l\u1eadp t\u1ee9c \u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u00e1c m\u1eb9o sau.<\/p>\n<p>                        Xem t\u1ea5t c\u1ea3<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Kien_thuc_duoc_chuan_bi_khi_hoc_Phan_chia_ba_chu_so_4\"><\/span>Ki\u1ebfn th\u1ee9c \u0111\u01b0\u1ee3c chu\u1ea9n b\u1ecb khi h\u1ecdc Ph\u00e2n chia ba ch\u1eef s\u1ed1 4<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">\u0110\u1ec3 c\u00f3 th\u1ec3 gi\u00fap tr\u1ebb h\u1ecdc to\u00e1n l\u1edbp 4, ch\u00fang c\u1ea7n hi\u1ec3u nh\u1eefng ki\u1ebfn \u200b\u200bth\u1ee9c sau:<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Ghi_nho\"><\/span>Ghi nh\u1edb<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">B\u1ea3ng ch\u00edn ch\u01b0\u01a1ng l\u00e0 n\u1ec1n t\u1ea3ng \u0111\u1ec3 t\u00ednh to\u00e1n v\u00e0 gi\u1ea3i c\u00e1c b\u00e0i t\u1eadp v\u1ec1 t\u00ednh to\u00e1n ph\u00e2n chia. V\u1edbi ki\u1ebfn \u200b\u200bth\u1ee9c n\u00e0y, h\u1ecd \u0111\u00e3 h\u1ecdc \u0111\u01b0\u1ee3c t\u1eeb ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n l\u1edbp 2, v\u00ec v\u1eady khi h\u1ecd h\u1ecdc l\u1edbp 4, h\u1ecdc sinh ph\u1ea3i ghi nh\u1edb v\u00e0 th\u00e0nh th\u1ea1o h\u1ecd \u0111\u1ec3 chinh ph\u1ee5c c\u00e1c b\u00e0i t\u1eadp to\u00e1n h\u1ecdc ba ch\u1eef s\u1ed1.<\/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\/hoc-toan-lop-4-phep-chia-so-co-ba-chu-so-1.jpg\" alt=\"\u0110\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c b\u00e0i t\u1eadp chuy\u1ec3n nh\u01b0\u1ee3ng, c\u1ea7n ph\u1ea3i hi\u1ec3u b\u1ea3ng ch\u00edn ch\u01b0\u01a1ng. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Hieu_phan_chia_la_gi\"><\/span>Hi\u1ec3u ph\u00e2n chia l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ec3 gi\u1ea3i quy\u1ebft m\u1ed9t b\u00e0i t\u1eadp ph\u00e2n chia hai ch\u1eef s\u1ed1, b\u1ea1n c\u1ea7n hi\u1ec3u s\u1ef1 ph\u00e2n chia l\u00e0 g\u00ec. C\u0169ng nh\u01b0 bi\u1ebft c\u00e1ch th\u1ef1c hi\u1ec7n ph\u00e2n chia 1 -Digit, 2 ch\u1eef s\u1ed1 v\u00e0 sau \u0111\u00f3 t\u1ea1o 3 ch\u1eef s\u1ed1.<\/p>\n<p dir=\"ltr\">Ch\u00fang t\u00f4i s\u1ebd l\u1ea5y v\u00ed d\u1ee5 sau \u0111\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 ph\u00e2n chia 1 ch\u1eef s\u1ed1.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: 428: 24 =?<\/em><\/p>\n<p dir=\"ltr\"><em>B\u01b0\u1edbc 1: L\u1ea5y 42 Ph\u00e2n chia cho 24 1<\/em><\/p>\n<p dir=\"ltr\"><em>Nh\u00e2n 1 v\u1edbi 24 l\u00e0 24; 42 Ngo\u1ea1i tr\u1eeb 24<\/em><\/p>\n<p dir=\"ltr\"><em>B\u01b0\u1edbc 2: Gi\u1eef 18, h\u1ea1 th\u1ea5p ch\u1eef s\u1ed1 ti\u1ebfp theo \u1edf b\u00ean ph\u1ea3i s\u1ed1 chia l\u00e0 S\u1ed1 8. Ch\u00fang t\u00f4i nh\u1eadn \u0111\u01b0\u1ee3c s\u1ed1 m\u1edbi 188<\/em><\/p>\n<p dir=\"ltr\"><em>M\u1ea5t 188 chia cho 24 \u0111\u1ebfn 8<\/em><\/p>\n<p dir=\"ltr\"><em>Nh\u00e2n 8 v\u1edbi 24 l\u00e0 184; 188 ngo\u1ea1i tr\u1eeb 184 l\u00e0 4<\/em><\/p>\n<p dir=\"ltr\"><em>V\u1eady: 428: 24 = 18 v\u00e0 s\u1ef1 c\u00e2n b\u1eb1ng l\u00e0 4<\/em><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Phan_biet_su_phan_chia_khong_con_sot_lai_va_con_lai\"><\/span>Ph\u00e2n bi\u1ec7t s\u1ef1 ph\u00e2n chia kh\u00f4ng c\u00f2n s\u00f3t l\u1ea1i v\u00e0 c\u00f2n l\u1ea1i<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">M\u1ed9t trong nh\u1eefng \u0111i\u1ec3m c\u1ea7n l\u01b0u \u00fd khi d\u1ea1y tr\u1ebb h\u1ecdc t\u00ednh to\u00e1n ph\u00e2n chia l\u00e0 bi\u1ebft ph\u00e2n chia l\u00e0 g\u00ec v\u00e0 kh\u00f4ng c\u00f3 d\u01b0 l\u01b0\u1ee3ng. C\u1ee5 th\u1ec3:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ph\u00e2n chia kh\u00f4ng ph\u1ea3i l\u00e0 ph\u00e2n chia: \u0110\u00e2y l\u00e0 m\u1ed9t b\u1ed9 ph\u1eadn v\u1edbi s\u1ed1 d\u01b0 0<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ph\u00e2n chia c\u00f2n l\u1ea1i: \u0110\u00e2y l\u00e0 m\u1ed9t b\u1ed9 ph\u1eadn v\u1edbi s\u1ed1 d\u01b0 0<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">V\u00ed d\u1ee5:<\/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\/hoc-toan-lop-4-phep-chia-so-co-ba-chu-so-2.jpg\" alt=\"\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Xem_xet_va_lop_so_tu_nhien\"><\/span>Xem x\u00e9t v\u00e0 l\u1edbp s\u1ed1 t\u1ef1 nhi\u00ean<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Khi gi\u1ea3i quy\u1ebft t\u00ednh to\u00e1n ph\u00e2n chia, y\u00eau c\u1ea7u tr\u1ebb s\u1ebd ph\u1ea3i \u0111\u1eb7t v\u1ecb tr\u00ed ch\u00ednh x\u00e1c c\u1ee7a c\u00e1c s\u1ed1 ph\u00e2n chia v\u00e0 c\u00e1c s\u1ed1 chia t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi h\u00e0ng v\u00e0 l\u1edbp c\u00f9ng nhau. Do \u0111\u00f3, hi\u1ec3u ki\u1ebfn \u200b\u200bth\u1ee9c v\u00e0 l\u1edbp s\u1ed1 t\u1ef1 nhi\u00ean s\u1ebd gi\u00fap b\u00e9 th\u1ef1c hi\u1ec7n nhi\u1ec1u t\u00ednh to\u00e1n h\u01a1n. C\u1ee5 th\u1ec3:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">M\u1ed9t tr\u0103m, h\u00e0ng ch\u1ee5c \u0111\u01a1n v\u1ecb, \u0111\u01a1n v\u1ecb t\u1ea1o th\u00e0nh m\u1ed9t l\u1edbp \u0111\u01a1n v\u1ecb<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">H\u00e0ng tr\u0103m ng\u00e0n, h\u00e0ng ch\u1ee5c ng\u00e0n, h\u00e0ng ng\u00e0n l\u1edbp h\u1ecdc<\/p>\n<\/li>\n<\/ul>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Huong_dan_toan_hoc_cap_4_duoc_chia_cho_ba_so_chu_so\"><\/span>H\u01b0\u1edbng d\u1eabn to\u00e1n h\u1ecdc c\u1ea5p 4 \u0111\u01b0\u1ee3c chia cho ba s\u1ed1 ch\u1eef s\u1ed1<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Khi b\u1ea1n \u0111\u00e3 \u0111\u01b0\u1ee3c trang b\u1ecb \u0111\u1ea7y \u0111\u1ee7 ki\u1ebfn \u200b\u200bth\u1ee9c v\u1ec1 b\u1ed9 ph\u1eadn, b\u00ean d\u01b0\u1edbi, Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef s\u1ebd h\u01b0\u1edbng d\u1eabn c\u00e1ch \u0111\u1eb7t t\u00ednh to\u00e1n ph\u00e2n chia ba ch\u1eef s\u1ed1 \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">B\u01b0\u1edbc 1: \u0110\u1eb7t t\u00ednh to\u00e1n v\u00e0o c\u1ed9t d\u1ecdc theo v\u1ecb tr\u00ed v\u00e0 l\u1edbp c\u1ee7a m\u1ed7i s\u1ed1 chia v\u00e0 s\u1ed1 ph\u00e2n chia.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">B\u01b0\u1edbc 2: L\u1ea5y 3 s\u1ed1 \u0111\u1ea7u ti\u00ean c\u1ee7a s\u1ed1 chia (n\u1ebfu ch\u00fang l\u1edbn h\u01a1n \u01b0\u1edbc s\u1ed1) ho\u1eb7c 4 ch\u1eef s\u1ed1 \u0111\u1ea7u ti\u00ean (n\u1ebfu 3 \u0111\u1ea7u nh\u1ecf h\u01a1n ph\u00e2n chia) v\u00e0 sau \u0111\u00f3 chia tr\u1ef1c ti\u1ebfp cho 3 s\u1ed1 c\u1ee7a ph\u00e2n chia. Bao nhi\u00eau s\u1ebd \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh \u1edf ph\u00eda \u0111\u1ed1i di\u1ec7n c\u1ee7a b\u1ed9 ph\u1eadn.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">B\u01b0\u1edbc 3: Ti\u1ebfp t\u1ee5c l\u1ea5y 3 ho\u1eb7c cha c\u1ee7a s\u1ed1 chia cho s\u1ea3n ph\u1ea9m v\u1eeba \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong b\u01b0\u1edbc 2.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">B\u01b0\u1edbc 4: N\u1ebfu b\u1ed9 ph\u1eadn v\u1eabn c\u00f2n m\u1ed9t ch\u1eef s\u1ed1, ch\u00fang t\u00f4i ti\u1ebfp t\u1ee5c h\u1ea1 s\u1ed1 ti\u1ebfp theo v\u00e0 sau \u0111\u00f3 l\u1ea5y n\u00f3 \u0111\u1ec3 chia cho b\u1ed9 ph\u1eadn \u0111\u1ec3 t\u00ecm th\u01b0\u01a1ng t\u00edch, v\u00e0 sau \u0111\u00f3 nh\u00e2n ng\u01b0\u1ee3c v\u1edbi c\u00f9ng m\u1ed9t b\u1ed9 ph\u1eadn v\u1edbi B\u01b0\u1edbc 2.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">B\u01b0\u1edbc 5: Ti\u1ebfp t\u1ee5c th\u1ef1c hi\u1ec7n c\u00e1c ho\u1ea1t \u0111\u1ed9ng trong c\u00e1c b\u01b0\u1edbc 3 v\u00e0 4 cho \u0111\u1ebfn khi k\u1ebft th\u00fac t\u00ednh to\u00e1n ph\u00e2n chia v\u00e0 k\u1ebft qu\u1ea3 l\u00e0 s\u1ef1 ph\u00e2n chia ho\u1eb7c d\u01b0.<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: \u0110\u1eb7t t\u00ednh to\u00e1n sau \u0111\u00f3 t\u00ednh to\u00e1n<\/em><\/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\/hoc-toan-lop-4-phep-chia-so-co-ba-chu-so-3.jpg\" alt=\"\" width=\"100%\"><\/p>\n<table style=\"border-collapse: collapse;width: 100%;background-color: #fbeeb8\" border=\"1\">\n<tr>\n<td style=\"width: 98.5189%\">\n<p style=\"text-align: center\">Gi\u00fap con b\u1ea1n h\u1ecdc to\u00e1n k\u1ebft h\u1ee3p v\u1edbi ti\u1ebfng Anh si\u00eau ti\u1ebft ki\u1ec7m ch\u1ec9 tr\u00ean \u1ee9ng d\u1ee5ng to\u00e1n h\u1ecdc kh\u1ec9. V\u1edbi n\u1ed9i dung gi\u1ea3ng d\u1ea1y v\u1ea1n n\u0103ng \u0111\u1ec3 gi\u00fap tr\u1ebb ph\u00e1t tri\u1ec3n t\u01b0 duy n\u00e3o b\u1ed9 v\u00e0 ng\u00f4n ng\u1eef to\u00e0n di\u1ec7n ch\u1ec9 v\u1edbi kho\u1ea3ng 2k\/ng\u00e0y.<\/p>\n<p style=\"text-align: center\">\n<p><img loading=\"lazy\" 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\/timhieungay.png\" alt=\"\" width=\"200\" height=\"41\"><\/p>\n<\/td>\n<\/tr>\n<\/table>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mot_hinh_thuc_cac_bai_tap_tu_co_ban_den_nang_cao_ve_phan_chia_theo_3_so_chu_so\"><\/span>M\u1ed9t h\u00ecnh th\u1ee9c c\u00e1c b\u00e0i t\u1eadp t\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao v\u1ec1 ph\u00e2n chia theo 3 s\u1ed1 ch\u1eef s\u1ed1<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">\u0110\u1ed1i v\u1edbi ki\u1ebfn \u200b\u200bth\u1ee9c v\u1ec1 to\u00e1n h\u1ecdc c\u1ea5p 4 chia cho ba s\u1ed1 ch\u1eef s\u1ed1, h\u1ecd th\u01b0\u1eddng s\u1ebd ph\u1ea3i chinh ph\u1ee5c c\u00e1c lo\u1ea1i b\u00e0i t\u1eadp sau:<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_1_Dat_tinh_toan_va_tinh_toan\"><\/span>M\u1eabu 1: \u0110\u1eb7t t\u00ednh to\u00e1n v\u00e0 t\u00ednh to\u00e1n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p: Tr\u1ebb em l\u00e0m theo c\u00e1c b\u01b0\u1edbc \u0111\u1ec3 gi\u1ea3i quy\u1ebft s\u1ef1 ph\u00e2n chia 3 ch\u1eef s\u1ed1 \u1edf tr\u00ean, t\u1eeb tr\u00e1i sang ph\u1ea3i \u0111\u1ec3 t\u00ecm c\u00e2u tr\u1ea3 l\u1eddi \u0111\u00fang.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5 1: 3570: 210 =?<\/em><\/p>\n<p dir=\"ltr\"><em>\u0110\u1eb7t v\u00e0 t\u00ednh to\u00e1n, ch\u00fang t\u00f4i c\u00f3:<\/em><\/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\/hoc-toan-lop-4-phep-chia-so-co-ba-chu-so-4.jpg\" alt=\"\" width=\"100%\"><\/p>\n<p dir=\"ltr\"><em>Ch\u00fang t\u00f4i ti\u1ebfn h\u00e0nh th\u1ef1c hi\u1ec7n b\u1ed9 ph\u1eadn theo th\u1ee9 t\u1ef1 t\u1eeb tr\u00e1i sang ph\u1ea3i m\u00e0 ch\u00fang t\u00f4i c\u00f3:<\/em><\/p>\n<p dir=\"ltr\"><em>357 chia 210<\/em><\/p>\n<p dir=\"ltr\"><em>1 nh\u00e2n 210 b\u1eb1ng 210. 357 ngo\u1ea1i tr\u1eeb 210 b\u1eb1ng 147<\/em><\/p>\n<p dir=\"ltr\"><em>Th\u1ea5p h\u01a1n 0, ch\u00fang t\u00f4i c\u00f3 1470 chia 210<\/em><\/p>\n<p dir=\"ltr\"><em>1470 tr\u1eeb 1470 trong 0.<\/em><\/p>\n<p dir=\"ltr\"><em>V\u00ec v\u1eady, 3570: 210 = 17 l\u00e0 b\u1ed9 ph\u1eadn.<\/em><\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5 2: 4368: 120 =?<\/em><\/p>\n<p dir=\"ltr\"><em>\u0110\u1eb7t v\u00e0 t\u00ednh to\u00e1n ch\u00fang t\u00f4i c\u00f3:<\/em><\/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\/hoc-toan-lop-4-phep-chia-so-co-ba-chu-so-5.jpg\" alt=\"\" width=\"100%\"><\/p>\n<p dir=\"ltr\"><em>Th\u1ef1c hi\u1ec7n b\u1ed9 ph\u1eadn theo th\u1ee9 t\u1ef1 t\u1eeb tr\u00e1i sang ph\u1ea3i ch\u00fang ta c\u00f3:<\/em><\/p>\n<p dir=\"ltr\"><em>436 chia cho 120 th\u00e0nh 3, vi\u1ebft 3<\/em><\/p>\n<p dir=\"ltr\"><em>3 l\u00f5i 120 b\u1eb1ng 360, 436 tr\u1eeb 360 b\u1eb1ng 76, vi\u1ebft 76<\/em><\/p>\n<p dir=\"ltr\"><em>Th\u1ea5p h\u01a1n 8 v\u1edbi 768 chia 120<\/em><\/p>\n<p dir=\"ltr\"><em>6 l\u00f5i 120 b\u1eb1ng 720, 768 ngo\u1ea1i tr\u1eeb 720 b\u1eb1ng 48, vi\u1ebft 48<\/em><\/p>\n<p dir=\"ltr\"><em>V\u00ec v\u1eady, 4368: 120 = 36 l\u00e0 b\u1ed9 ph\u1eadn 4 c\u00f2n l\u1ea1i<\/em><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_2_Tinh_gia_tri_cua_bieu_thuc\"><\/span>M\u1eabu 2: T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p: H\u1ecd ph\u1ea3i hi\u1ec3u c\u00e1c quy t\u1eafc khi th\u1ef1c hi\u1ec7n t\u00ednh to\u00e1n l\u00e0 ph\u00e9p nh\u00e2n \u0111\u01b0\u1ee3c t\u1ea1o ra \u0111\u1ea7u ti\u00ean &#8211; ph\u00e9p tr\u1eeb b\u1ed5 sung, \u1edf m\u1eb7t tr\u01b0\u1edbc v\u00e0 d\u1ea5u ngo\u1eb7c b\u00ean ngo\u00e0i \u0111\u1ec3 t\u00ecm c\u00e2u tr\u1ea3 l\u1eddi \u0111\u00fang.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c sau:<\/em><\/p>\n<p dir=\"ltr\"><em>A) 1995 x 253 + 8910: 495<\/em><\/p>\n<p dir=\"ltr\"><em>b) 8700: 25: 4<\/em><\/p>\n<p dir=\"ltr\"><em>Gi\u1ea3i ph\u00e1p:<\/em><\/p>\n<p dir=\"ltr\"><em>A) 1995 x 253 + 8910: 495<\/em><\/p>\n<p dir=\"ltr\"><em>= 504735 + 18<\/em><\/p>\n<p dir=\"ltr\"><em>= 504753<\/em><\/p>\n<p dir=\"ltr\"><em>b) 8700: 25: 4<\/em><\/p>\n<p dir=\"ltr\"><em>= 8700: (25 x 4)<\/em><\/p>\n<p dir=\"ltr\"><em>= 8700: 100 = 87<\/em><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_3_Van_de_ung_dung\"><\/span>M\u1eabu 3: V\u1ea5n \u0111\u1ec1 \u1ee9ng d\u1ee5ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p: T\u00f9y thu\u1ed9c v\u00e0o ch\u1ee7 \u0111\u1ec1, b\u1ea1n ph\u1ea3i \u0111\u1ecdc ch\u1ee7 \u0111\u1ec1 m\u1ed9t c\u00e1ch c\u1ea9n th\u1eadn \u0111\u1ec3 c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n t\u00ednh to\u00e1n v\u00e0 \u0111\u01b0a ra gi\u1ea3i ph\u00e1p ch\u00ednh x\u00e1c.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5, c\u00f3 hai c\u1eeda h\u00e0ng, m\u1ed7i c\u1eeda h\u00e0ng nh\u1eadn \u0111\u01b0\u1ee3c 7128m v\u1ea3i. Trung b\u00ecnh, h\u00e0ng ng\u00e0y \u0111\u1ea7u ti\u00ean c\u1ee7a h\u00e0ng \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c b\u00e1n 264m v\u1ea3i, c\u1eeda h\u00e0ng th\u1ee9 hai \u0111\u00e3 b\u00e1n 297m v\u1ea3i. H\u1ecfi c\u1eeda h\u00e0ng n\u00e0o b\u00e1n t\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i v\u1ea3i \u0111\u00f3 s\u1edbm h\u01a1n v\u00e0 bao nhi\u00eau ng\u00e0y tr\u01b0\u1edbc?<\/em><\/p>\n<p dir=\"ltr\"><em>B\u1ea3n t\u00f3m t\u1eaft<\/em><\/p>\n<p dir=\"ltr\"><em>M\u1ed7i c\u1eeda h\u00e0ng: v\u1ea3i 7128m<\/em><\/p>\n<p dir=\"ltr\"><em>M\u1ed7i ng\u00e0y, c\u1eeda h\u00e0ng 1: 264m v\u1ea3i<\/em><\/p>\n<p dir=\"ltr\"><em>M\u1ed7i ng\u00e0y, c\u1eeda h\u00e0ng 2: 297m v\u1ea3i<\/em><\/p>\n<p dir=\"ltr\"><em>C\u1eeda h\u00e0ng &#8230;. \u0111\u00e3 b\u00e1n h\u1ebft s\u1edbm h\u01a1n v\u00e0 s\u1edbm h\u01a1n &#8230; ng\u00e0y?<\/em><\/p>\n<p dir=\"ltr\"><em>Gi\u1ea3i ph\u00e1p:<\/em><\/p>\n<p dir=\"ltr\"><em>C\u1eeda h\u00e0ng \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c b\u00e1n h\u1ebft th\u1eddi:<\/em><\/p>\n<p dir=\"ltr\"><em>7128: 264 = 27 (ng\u00e0y)<\/em><\/p>\n<p dir=\"ltr\"><em>C\u1eeda h\u00e0ng th\u1ee9 hai \u0111\u01b0\u1ee3c b\u00e1n h\u1ebft ng\u00e0y:<\/em><\/p>\n<p dir=\"ltr\"><em>7128: 297 = 24 (ng\u00e0y)<\/em><\/p>\n<p dir=\"ltr\"><em>V\u00ec v\u1eady, c\u1eeda h\u00e0ng th\u1ee9 hai \u0111\u00e3 b\u00e1n h\u1ebft s\u1edbm h\u01a1n v\u00e0 s\u1edbm h\u01a1n s\u1ed1 ng\u00e0y:<\/em><\/p>\n<p dir=\"ltr\"><em>27 &#8211; 24 = 3 (ng\u00e0y)<\/em><\/p>\n<p dir=\"ltr\"><em>Tr\u1ea3 l\u1eddi: 3 ng\u00e0y<\/em><\/p>\n<p dir=\"ltr\">\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bi_quyet_hoc_toan_lop_4_duoc_chia_cho_so_ba_chu_so\"><\/span>B\u00ed quy\u1ebft h\u1ecdc to\u00e1n l\u1edbp 4 \u0111\u01b0\u1ee3c chia cho s\u1ed1 ba ch\u1eef s\u1ed1<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">\u0110\u1ec3 c\u00f3 th\u1ec3 gi\u00fap tr\u1ebb chinh ph\u1ee5c c\u00e1c lo\u1ea1i b\u00e0i t\u1eadp v\u1ec1 t\u00ednh to\u00e1n ph\u00e2n chia t\u1ed1t h\u01a1n, cha m\u1eb9 c\u00f3 th\u1ec3 ngay l\u1eadp t\u1ee9c \u0111\u1ec1 c\u1eadp \u0111\u1ebfn m\u1ed9t s\u1ed1 m\u1eb9o sau:<\/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\/hoc-toan-lop-4-phep-chia-so-co-ba-chu-so-6.jpg\" alt=\"H\u1ecdc t\u1eadp v\u00e0 th\u1ef1c h\u00e0nh th\u01b0\u1eddng xuy\u00ean l\u00e0 r\u1ea5t quan tr\u1ecdng. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Hi\u1ec3u l\u00fd thuy\u1ebft v\u1ec1 t\u00ednh to\u00e1n ph\u00e2n chia: \u0110\u1ec3 gi\u1ea3i quy\u1ebft vi\u1ec7c th\u1ef1c hi\u1ec7n t\u00ednh to\u00e1n ph\u00e2n chia ba ch\u1eef s\u1ed1, c\u1ea7n ph\u1ea3i hi\u1ec3u l\u00fd thuy\u1ebft v\u1ec1 t\u00ednh to\u00e1n n\u00e0y t\u1eeb b\u1ea3ng ch\u00edn ch\u01b0\u01a1ng, c\u00e1c b\u01b0\u1edbc, s\u1ef1 ph\u00e2n chia v\u1edbi qu\u00e1 m\u1ee9c v\u00e0 ph\u00e2n chia &#8230; \u0110\u00e2y l\u00e0 ki\u1ebfn \u200b\u200bth\u1ee9c c\u01a1 b\u1ea3n m\u00e0 b\u1ea5t k\u1ef3 \u0111\u1ee9a tr\u1ebb n\u00e0o c\u0169ng ph\u1ea3i hi\u1ec3u.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Th\u1ef1c h\u00e0nh m\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p t\u00ednh to\u00e1n nhanh: \u0110\u1ed1i v\u1edbi tr\u1ebb em l\u1edbp 4, ch\u00fang s\u1ebd kh\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 b\u1ecf t\u00fai m\u00e1y t\u00ednh, v\u00ec v\u1eady \u0111\u1ec3 h\u1ed7 tr\u1ee3 em b\u00e9 t\u00ednh to\u00e1n nhanh ch\u00f3ng, ph\u1ee5 huynh c\u00f3 th\u1ec3 t\u00ecm hi\u1ec3u m\u1ed9t s\u1ed1 m\u1eb9o \u0111\u1ec3 t\u00ednh to\u00e1n \u0111i\u1ec3m c\u1ed9ng tinh th\u1ea7n c\u1ee7a b\u00fap b\u00ea chia.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Th\u1ef1c h\u00e0nh, th\u1ef1c h\u00e0nh th\u01b0\u1eddng xuy\u00ean: \u0110\u1ed1i v\u1edbi tr\u1ebb em l\u1edbp 4 l\u00e0 kh\u00e1 nh\u1ecf, n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c th\u1ef1c h\u00e0nh, th\u1ef1c h\u00e0nh th\u01b0\u1eddng xuy\u00ean, ch\u00fang d\u1ec5 d\u00e0ng nhanh ch\u00f3ng qu\u00ean \u0111i ki\u1ebfn \u200b\u200bth\u1ee9c c\u1ee7a m\u00ecnh. Do \u0111\u00f3, ph\u1ee5 huynh khuy\u1ebfn kh\u00edch v\u00e0 y\u00eau c\u1ea7u con c\u00e1i h\u1ecd th\u1ef1c h\u00e0nh nhi\u1ec1u h\u01a1n t\u1eeb vi\u1ec7c l\u00e0m b\u00e0i t\u1eadp v\u1ec1 nh\u00e0 trong s\u00e1ch gi\u00e1o khoa, b\u00e0i t\u1eadp, h\u1ecdc th\u00eam ki\u1ebfn \u200b\u200bth\u1ee9c tr\u00ean internet, h\u1ecdc th\u00f4ng qua c\u00e1c tr\u00f2 ch\u01a1i &#8230; \u0111\u1ec3 k\u00edch th\u00edch kh\u1ea3 n\u0103ng to\u00e1n h\u1ecdc c\u1ee7a em b\u00e9 t\u1ed1t h\u01a1n.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">X\u00e2y d\u1ef1ng m\u1ed9t n\u1ec1n t\u1ea3ng, t\u00ecnh y\u00eau d\u00e0nh cho to\u00e1n h\u1ecdc d\u00e0nh cho tr\u1ebb em v\u1edbi to\u00e1n h\u1ecdc kh\u1ec9: \u0110\u00e2y l\u00e0 m\u1ed9t \u1ee9ng d\u1ee5ng gi\u1ea3ng d\u1ea1y to\u00e1n song ng\u1eef cho tr\u1ebb em m\u1ea7m non v\u00e0 tr\u1ebb em ti\u1ec3u h\u1ecdc. V\u1edbi vi\u1ec7c d\u1ea1y h\u01a1n 60 ch\u1ee7 \u0111\u1ec1 to\u00e1n h\u1ecdc, \u0111\u01b0\u1ee3c chia th\u00e0nh 4 c\u1ea5p \u0111\u1ed9 t\u1eeb d\u1ec5 d\u00e0ng \u0111\u1ebfn kh\u00f3 kh\u0103n s\u1ebd gi\u00fap cha m\u1eb9 d\u1ec5 d\u00e0ng ch\u1ecdn c\u1ea5p \u0111\u1ed9 ph\u00f9 h\u1ee3p cho tr\u1ebb em. C\u00f9ng v\u1edbi vi\u1ec7c d\u1ea1y to\u00e1n th\u00f4ng qua c\u00e1c video, ho\u1ea1t h\u00ecnh h\u00e0i h\u01b0\u1edbc v\u00e0 c\u00e1c tr\u00f2 ch\u01a1i t\u01b0\u01a1ng t\u00e1c s\u1ebd gi\u00fap c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng to\u00e1n h\u1ecdc v\u00e0 suy ngh\u0129 c\u1ee7a con b\u1ea1n t\u1ed1t h\u01a1n. \u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 to\u00e1n h\u1ecdc kh\u1ec9, ph\u1ee5 huynh c\u00f3 th\u1ec3 \u0111\u0103ng k\u00fd l\u1eddi khuy\u00ean ho\u1eb7c tham kh\u1ea3o video sau:<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\"> <img loading=\"lazy\" decoding=\"async\" style=\"margin-left: auto;margin-right: auto\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia.monkeyuni.net\/upload\/web\/img\/nhantuvanmienphi.png\" alt=\"\" width=\"200\" height=\"39\"><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><a href=\"https:\/\/www.youtube.com\/watch?v=7DSJPVHFROS\" target=\"_blank\" rel=\"noopener\">https:\/\/www.youtube.com\/watch?v=7DSJPVHFROS<\/a><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_tap_phan_chia_ba_chu_so_o_lop_4_de_con_ban_thuc_hanh\"><\/span>B\u00e0i t\u1eadp ph\u00e2n chia ba ch\u1eef s\u1ed1 \u1edf l\u1edbp 4 \u0111\u1ec3 con b\u1ea1n th\u1ef1c h\u00e0nh<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Sau khi n\u1eafm b\u1eaft l\u00fd thuy\u1ebft, ki\u1ebfn \u200b\u200bth\u1ee9c b\u1ea1n c\u1ea7n h\u1ecdc \u0111\u1ec3 h\u1ecdc to\u00e1n \u1edf l\u1edbp 4 chia cho m\u1ed9t s\u1ed1 ba ch\u1eef s\u1ed1 m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3, \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 b\u00e0i t\u1eadp \u0111\u1ec3 h\u1ecd th\u1ef1c h\u00e0nh v\u00e0 th\u1ef1c h\u00e0nh c\u00f9ng nhau:<\/p>\n<p dir=\"ltr\">B\u00e0i 1: \u0110\u1eb7t t\u00ednh to\u00e1n v\u00e0 t\u00ednh to\u00e1n<\/p>\n<p dir=\"ltr\">A) 2120: 424<\/p>\n<p dir=\"ltr\">1935: 354<\/p>\n<p dir=\"ltr\">b) 6420: 321<\/p>\n<p dir=\"ltr\">4957: 165<\/p>\n<p dir=\"ltr\">c) 1944: 162<\/p>\n<p dir=\"ltr\">8469: 241<\/p>\n<p dir=\"ltr\">d) 41535: 195<\/p>\n<p dir=\"ltr\">80120: 245<\/p>\n<p dir=\"ltr\">B\u00e0i 2: T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c<\/p>\n<p dir=\"ltr\">A) 1998 x 20 + 4788: 252<\/p>\n<p dir=\"ltr\">b) 2019 &#8211; 12780: 852<\/p>\n<p dir=\"ltr\">c) 999: 333 + 17286<\/p>\n<p dir=\"ltr\">D) 43875: 975 + 6731 &#8211; 5012<\/p>\n<p dir=\"ltr\">E) 1995 x 253 + 8910: 495<\/p>\n<p dir=\"ltr\">f) 88700: 25: 4<\/p>\n<p dir=\"ltr\">g) 1820 x 15 + 3024: 252<\/p>\n<p dir=\"ltr\">h) 7136: 223+ 1260<\/p>\n<p dir=\"ltr\">B\u00e0i 3: T\u00ecm b\u1ea1n bi\u1ebft<\/p>\n<p dir=\"ltr\">A) YX 153 = 39168<\/p>\n<p dir=\"ltr\">B) YX 486 = 9234<\/p>\n<p dir=\"ltr\">C) YX 715 = 27173<\/p>\n<p dir=\"ltr\">D) YX 999 = 90915<\/p>\n<p dir=\"ltr\">e) 24225 \u2236 y = 285<\/p>\n<p dir=\"ltr\">f) YX 216 = 10800<\/p>\n<p dir=\"ltr\">g) YX 730 = 18250<\/p>\n<p dir=\"ltr\">B\u00e0i 4: C\u00f3 hai c\u1eeda h\u00e0ng, m\u1ed7i c\u1eeda h\u00e0ng nh\u1eadn \u0111\u01b0\u1ee3c 7128m v\u1ea3i. Trung b\u00ecnh, h\u00e0ng ng\u00e0y \u0111\u1ea7u ti\u00ean c\u1ee7a h\u00e0ng \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c b\u00e1n 264m v\u1ea3i, c\u1eeda h\u00e0ng th\u1ee9 hai \u0111\u00e3 b\u00e1n 297m v\u1ea3i. H\u1ecfi c\u1eeda h\u00e0ng n\u00e0o b\u00e1n t\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i v\u1ea3i \u0111\u00f3 s\u1edbm h\u01a1n v\u00e0 bao nhi\u00eau ng\u00e0y tr\u01b0\u1edbc?<\/p>\n<p dir=\"ltr\">B\u00e0i 5: C\u00f3 2 c\u1eeda h\u00e0ng b\u00e1n h\u1ea1t \u0111i\u1ec1u, nh\u1eadp kh\u1ea9u 6330 kg m\u1ed7i ng\u00e0y. Trung b\u00ecnh, m\u1ed7i ng\u00e0y c\u1eeda h\u00e0ng \u0111\u1ea7u ti\u00ean b\u00e1n 210kg, c\u1eeda h\u00e0ng th\u1ee9 hai b\u00e1n 495kg. C\u1eeda ra c\u1eeda bao nhi\u00eau ng\u00e0y \u0111\u1ec3 b\u00e1n t\u1ea5t c\u1ea3 nh\u1eefng g\u1ea1o \u0111\u00f3 v\u00e0 b\u1ea5t k\u1ef3 c\u1eeda h\u00e0ng n\u00e0o c\u00f2n l\u1ea1i?<\/p>\n<p dir=\"ltr\">B\u00e0i 6: M\u1ed9t b\u1ec3 8190 l\u00edt n\u01b0\u1edbc. H\u1ecfi chi\u1ebfc xe t\u0103ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng bao l\u00e2u? Bi\u1ebft r\u1eb1ng, m\u1ed7i ng\u00e0y ti\u00eau th\u1ee5 315 l\u00edt n\u01b0\u1edbc.  <\/p>\n<p dir=\"ltr\">B\u00e0i 7: M\u1ed9t cu\u1ed1n s\u00e1ch c\u00f3 1175 trang, LAN \u0111\u1ecdc t\u1ea5t c\u1ea3 1\/235 trang. Y\u00eau c\u1ea7u LAN \u0111\u1ecdc bao nhi\u00eau trang s\u00e1ch?<\/p>\n<p dir=\"ltr\">B\u00e0i 8: M\u1ecdi ng\u01b0\u1eddi chia t\u01b0\u01a1ng \u0111\u01b0\u01a1ng 30kg \u0111\u01b0\u1eddng th\u00e0nh 150 g\u00f3i. M\u1ed7i lo\u1ea1i \u0111\u01b0\u1eddng?<\/p>\n<p dir=\"ltr\">B\u00e0i 9: M\u1ed9t chi\u1ebfc xe mang theo 3750kg th\u1ef1c ph\u1ea9m trong m\u1ed9t ng\u00e0y. M\u1ed7i chi\u1ebfc xe mang theo 1250kg th\u1ef1c ph\u1ea9m. Ng\u00e0y h\u00f4m \u0111\u00f3 \u0111\u00e3 th\u1ef1c hi\u1ec7n bao nhi\u00eau chuy\u1ebfn \u0111i ng\u00e0y h\u00f4m \u0111\u00f3?<\/p>\n<p dir=\"ltr\">B\u00e0i 10: M\u1ed9t m\u00e1y s\u1ea3n xu\u1ea5t trong m\u1ed9t n\u0103m l\u00e0 128 100 s\u1ea3n ph\u1ea9m. H\u1ecfi trung b\u00ecnh m\u1ed7i ng\u00e0y nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t nhi\u1ec1u s\u1ea3n ph\u1ea9m, bi\u1ebft m\u1ed9t n\u0103m l\u00e0m vi\u1ec7c 305 ng\u00e0y?<\/p>\n<p dir=\"ltr\">B\u00e0i 11: M\u1ed9t v\u00f9ng \u0111\u1ea5t h\u00ecnh ch\u1eef nh\u1eadt c\u00f3 di\u1ec7n t\u00edch 68800m2, chi\u1ec1u d\u00e0i 320m.<\/p>\n<p dir=\"ltr\">a) T\u00ednh chi\u1ec1u r\u1ed9ng c\u1ee7a \u0111\u1ea5t.<\/p>\n<p dir=\"ltr\">b) T\u00ednh chu vi c\u1ee7a v\u00f9ng \u0111\u1ea5t \u0111\u00f3.<\/p>\n<p dir=\"ltr\">B\u00e0i 12: C\u00f3 2 c\u1eeda h\u00e0ng b\u00e1n g\u1ea1o, nh\u1eadp kh\u1ea9u 6375 kg g\u1ea1o m\u1ed7i ng\u00e0y. Trung b\u00ecnh, c\u1eeda h\u00e0ng \u0111\u1ea7u ti\u00ean b\u00e1n 425kg m\u1ed7i ng\u00e0y, c\u1eeda h\u00e0ng th\u1ee9 hai b\u00e1n 490kg. C\u00e1c c\u1eeda h\u00e0ng m\u1ea5t bao nhi\u00eau ng\u00e0y \u0111\u1ec3 b\u00e1n t\u1ea5t c\u1ea3 nh\u1eefng g\u1ea1o \u0111\u00f3 v\u00e0 b\u1ea5t k\u1ef3 c\u1eeda h\u00e0ng n\u00e0o c\u00f2n l\u1ea1i?<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Ket_luan\"><\/span>K\u1ebft lu\u1eadn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/p>\n<p dir=\"ltr\">Tr\u00ean \u0111\u00e2y l\u00e0 m\u1ed9t b\u1ea3n t\u00f3m t\u1eaft v\u1ec1 vi\u1ec7c chia s\u1ebb ki\u1ebfn \u200b\u200bth\u1ee9c v\u1ec1 to\u00e1n h\u1ecdc c\u1ea5p 4 chia cho ba s\u1ed1 ti\u00eau chu\u1ea9n, m\u1ed9t trong nh\u1eefng m\u00f4n to\u00e1n th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n trong c\u00e1c b\u00e0i t\u1eadp v\u00e0 c\u00e2u h\u1ecfi thi. V\u00ec v\u1eady, cha m\u1eb9 c\u00f3 th\u1ec3 tham kh\u1ea3o vi\u1ec7c chia s\u1ebb kh\u1ec9 \u1edf tr\u00ean \u0111\u1ec3 h\u1ed7 tr\u1ee3 tr\u1ebb em nghi\u00ean c\u1ee9u v\u00e0 chinh ph\u1ee5c b\u00e0i t\u1eadp n\u00e0y c\u00f3 hi\u1ec7u qu\u1ea3 t\u1ed1t nh\u1ea5t.<\/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 l\u1edbp 4, t\u00ednh to\u00e1n chia s\u1ebb c\u00f3 ph\u1ea7n n\u00e2ng cao h\u01a1n khi em b\u00e9 s\u1ebd h\u1ecdc to\u00e1n h\u1ecdc l\u1edbp 4 chia cho m\u1ed9t s\u1ed1 ba ch\u1eef s\u1ed1. V\u00ec v\u1eady, \u0111\u1ec3 gi\u00fap con b\u1ea1n h\u1ecdc h\u1ecfi, d\u1ec5 d\u00e0ng chinh ph\u1ee5c ki\u1ebfn \u200b\u200bth\u1ee9c n\u00e0y, h\u00e3y \u0111\u1ec3 kh\u1ec9 ngay l\u1eadp t\u1ee9c \u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u00e1c m\u1eb9o sau&#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-14882","post","type-post","status-publish","format-standard","hentry","category-kien-thuc"],"_links":{"self":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/14882","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=14882"}],"version-history":[{"count":2,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/14882\/revisions"}],"predecessor-version":[{"id":17858,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/14882\/revisions\/17858"}],"wp:attachment":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/media?parent=14882"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/categories?post=14882"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/tags?post=14882"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}