{"id":16376,"date":"2025-07-03T10:25:04","date_gmt":"2025-07-03T03:25:04","guid":{"rendered":"https:\/\/www.ckconitsha.com\/vn\/?p=16376"},"modified":"2025-07-03T11:37:20","modified_gmt":"2025-07-03T04:37:20","slug":"huong-dan-hoc-toan-lop-4-hang-va-lop-chi-tiet-hieu-qua","status":"publish","type":"post","link":"https:\/\/www.ckconitsha.com\/vn\/huong-dan-hoc-toan-lop-4-hang-va-lop-chi-tiet-hieu-qua\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn h\u1ecdc to\u00e1n l\u1edbp 4 h\u00e0ng v\u00e0 l\u1edbp chi ti\u1ebft hi\u1ec7u qu\u1ea3"},"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\/huong-dan-hoc-toan-lop-4-hang-va-lop-chi-tiet-hieu-qua\/#Khai_niem_ve_hang_hoa_va_lop_hoc_trong_lop_4\" >Kh\u00e1i ni\u1ec7m v\u1ec1 h\u00e0ng h\u00f3a v\u00e0 l\u1edbp h\u1ecdc trong l\u1edbp 4<\/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\/huong-dan-hoc-toan-lop-4-hang-va-lop-chi-tiet-hieu-qua\/#Cac_hinh_thuc_cua_cac_bai_tap_toan_hoc_4_-ROW_va_lop_pho_bien\" >C\u00e1c h\u00ecnh th\u1ee9c c\u1ee7a c\u00e1c b\u00e0i t\u1eadp to\u00e1n h\u1ecdc 4 -ROW v\u00e0 l\u1edbp 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\/huong-dan-hoc-toan-lop-4-hang-va-lop-chi-tiet-hieu-qua\/#Mau_1_Viet_so_vao_tong\" >M\u1eabu 1: Vi\u1ebft s\u1ed1 v\u00e0o t\u1ed5ng<\/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\/huong-dan-hoc-toan-lop-4-hang-va-lop-chi-tiet-hieu-qua\/#Mau_2_Viet_so_theo_yeu_cau_cua_van_de\" >M\u1eabu 2: Vi\u1ebft s\u1ed1 theo y\u00eau c\u1ea7u c\u1ee7a v\u1ea5n \u0111\u1ec1<\/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\/huong-dan-hoc-toan-lop-4-hang-va-lop-chi-tiet-hieu-qua\/#Mau_3_Doc_so_va_chi_ra_gia_tri_cua_1_chu_so_cua_hang\" >M\u1eabu 3: \u0110\u1ecdc s\u1ed1 v\u00e0 ch\u1ec9 ra gi\u00e1 tr\u1ecb c\u1ee7a 1 ch\u1eef s\u1ed1 c\u1ee7a h\u00e0ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.ckconitsha.com\/vn\/huong-dan-hoc-toan-lop-4-hang-va-lop-chi-tiet-hieu-qua\/#Mau_4_So_sanh_so_tu_nhien_voi_nhieu_chu_so\" >M\u1eabu 4: So s\u00e1nh s\u1ed1 t\u1ef1 nhi\u00ean v\u1edbi nhi\u1ec1u ch\u1eef s\u1ed1<\/a><\/li><\/ul><\/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\/huong-dan-hoc-toan-lop-4-hang-va-lop-chi-tiet-hieu-qua\/#Bi_quyet_de_giup_tre_hoc_kien_%E2%80%8B%E2%80%8Bthuc_san_pham_va_cac_lop_toan_lop_4_mot_cach_hieu_qua\" >B\u00ed quy\u1ebft \u0111\u1ec3 gi\u00fap tr\u1ebb h\u1ecdc ki\u1ebfn \u200b\u200bth\u1ee9c s\u1ea3n ph\u1ea9m v\u00e0 c\u00e1c l\u1edbp to\u00e1n l\u1edbp 4 m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3<\/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\/huong-dan-hoc-toan-lop-4-hang-va-lop-chi-tiet-hieu-qua\/#Xay_dung_mot_nen_tang_toan_hoc_cho_tre_em_voi_toan_hoc_khi\" >X\u00e2y d\u1ef1ng m\u1ed9t n\u1ec1n t\u1ea3ng to\u00e1n h\u1ecdc cho tr\u1ebb em v\u1edbi to\u00e1n h\u1ecdc kh\u1ec9<\/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\/huong-dan-hoc-toan-lop-4-hang-va-lop-chi-tiet-hieu-qua\/#Cung_voi_tre_em_hoc_toan_va_lop_hoc_dua_tren_thuc_hanh\" >C\u00f9ng v\u1edbi tr\u1ebb em h\u1ecdc to\u00e1n v\u00e0 l\u1edbp h\u1ecdc d\u1ef1a tr\u00ean th\u1ef1c h\u00e0nh<\/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\/huong-dan-hoc-toan-lop-4-hang-va-lop-chi-tiet-hieu-qua\/#To_chuc_cac_tro_choi_toan_hoc_cho_tre_em\" >T\u1ed5 ch\u1ee9c c\u00e1c tr\u00f2 ch\u01a1i to\u00e1n h\u1ecdc cho tr\u1ebb em<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.ckconitsha.com\/vn\/huong-dan-hoc-toan-lop-4-hang-va-lop-chi-tiet-hieu-qua\/#Thuc_hanh_lien_tuc_la_rat_quan_trong\" >Th\u1ef1c h\u00e0nh li\u00ean t\u1ee5c l\u00e0 r\u1ea5t quan tr\u1ecdng<\/a><\/li><\/ul><\/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\/huong-dan-hoc-toan-lop-4-hang-va-lop-chi-tiet-hieu-qua\/#4_-Bai_tap_toan_hoc_va_lop_hoc_cho_em_be_cua_ban_su_dung\" >4 -B\u00e0i t\u1eadp to\u00e1n h\u1ecdc v\u00e0 l\u1edbp h\u1ecdc cho em b\u00e9 c\u1ee7a b\u1ea1n s\u1eed d\u1ee5ng<\/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\/huong-dan-hoc-toan-lop-4-hang-va-lop-chi-tiet-hieu-qua\/#Ket_luan\" >K\u1ebft lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n<\/p>\n<p>4 -Row v\u00e0 to\u00e1n h\u1ecdc l\u00e0 m\u1ed9t trong nh\u1eefng ki\u1ebfn \u200b\u200bth\u1ee9c b\u00e0i h\u1ecdc m\u00e0 tr\u1ebb em s\u1ebd l\u00e0m quen, h\u1ecdc v\u00e0 gi\u1ea3i c\u00e1c b\u00e0i t\u1eadp. \u0110\u1ec3 gi\u00fap h\u1ecd d\u1ec5 d\u00e0ng n\u1eafm b\u1eaft, ti\u1ebfp thu v\u00e0 chinh ph\u1ee5c ki\u1ebfn \u200b\u200bth\u1ee9c n\u00e0y, Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef s\u1ebd chia s\u1ebb th\u00f4ng tin v\u00e0 b\u00ed m\u1eadt c\u1ee7a vi\u1ec7c h\u1ecdc chi ti\u1ebft ngay trong b\u00e0i vi\u1ebft sau.<\/p>\n<p>                                                                    <img decoding=\"async\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img_default\/monkey3.png\" alt=\"\"><\/p>\n<p class=\"title\">H\u00e0ng tri\u1ec7u tr\u1ebb em \u0111\u00e3 ph\u00e1t tri\u1ec3n c\u00e1c k\u1ef9 n\u0103ng ng\u00f4n ng\u1eef c\u1ee7a ch\u00fang th\u00f4ng qua c\u00e1c \u1ee9ng d\u1ee5ng h\u1ecdc t\u1eadp c\u1ee7a kh\u1ec9<\/p>\n<p class=\"description\">\u0110\u0103ng k\u00fd ngay \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n mi\u1ec5n ph\u00ed v\u1ec1 c\u00e1c s\u1ea3n ph\u1ea9m v\u00e0 tuy\u1ebfn h\u1ecdc h\u1ecdc cho tr\u1ebb em.<\/p>\n<p>                                                                            *Vui l\u00f2ng ki\u1ec3m tra t\u00ean \u0111\u1ea7y \u0111\u1ee7 c\u1ee7a b\u1ea1n *Vui l\u00f2ng ki\u1ec3m tra s\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n mi\u1ec5n ph\u00ed<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Khai_niem_ve_hang_hoa_va_lop_hoc_trong_lop_4\"><\/span>Kh\u00e1i ni\u1ec7m v\u1ec1 h\u00e0ng h\u00f3a v\u00e0 l\u1edbp h\u1ecdc trong l\u1edbp 4<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Trong ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n l\u1edbp 4, h\u1ecd s\u1ebd quen thu\u1ed9c v\u1edbi ki\u1ebfn \u200b\u200bth\u1ee9c v\u00e0 ki\u1ebfn \u200b\u200bth\u1ee9c c\u1ee7a l\u1edbp. Trong \u0111\u00f3:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">\u0110\u01a1n v\u1ecb, h\u00e0ng ch\u1ee5c, h\u00e0ng tr\u0103m \u0111\u01a1n v\u1ecb.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">H\u00e0ng ng\u00e0n, h\u00e0ng ch\u1ee5c ng\u00e0n, h\u00e0ng tr\u0103m ng\u00e0n ng\u01b0\u1eddi c\u00f9ng nhau.<\/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\/toan-lop-4-hang-va-lop-1.jpg\" alt=\"\" width=\"100%\"><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cac_hinh_thuc_cua_cac_bai_tap_toan_hoc_4_-ROW_va_lop_pho_bien\"><\/span>C\u00e1c h\u00ecnh th\u1ee9c c\u1ee7a c\u00e1c b\u00e0i t\u1eadp to\u00e1n h\u1ecdc 4 -ROW v\u00e0 l\u1edbp ph\u1ed5 bi\u1ebfn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">\u0110\u1ed1i v\u1edbi \u0111\u1ecbnh ngh\u0129a v\u1ec1 h\u00e0ng h\u00f3a v\u00e0 l\u1edbp to\u00e1n l\u1edbp 4 c\u0169ng kh\u00e1 \u0111\u01a1n gi\u1ea3n, nh\u01b0ng qu\u00e1 tr\u00ecnh h\u1ecdc t\u1eadp tr\u1ebb c\u0169ng s\u1ebd h\u1ecdc v\u00e0 l\u00e0m quen v\u1edbi c\u00e1c lo\u1ea1i b\u00e0i t\u1eadp sau:<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_1_Viet_so_vao_tong\"><\/span>M\u1eabu 1: Vi\u1ebft s\u1ed1 v\u00e0o t\u1ed5ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3i ph\u00e1p: H\u1ecd s\u1ebd x\u00e1c \u0111\u1ecbnh gi\u00e1 tr\u1ecb c\u1ee7a h\u00e0ng h\u00f3a theo th\u1ee9 t\u1ef1 t\u1eeb tr\u00e1i sang ph\u1ea3i, l\u1edbp h\u00e0ng ng\u00e0n, h\u00e0ng tr\u0103m l\u1edbp, h\u00e0ng t\u00e1 l\u1edbp v\u00e0 sau \u0111\u00f3 chuy\u1ec3n \u0111\u1ebfn l\u1edbp \u0111\u01a1n v\u1ecb.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5:<\/em><\/p>\n<p dir=\"ltr\"><em>25 371 = 20 000 + 5 000 + 300 + 70 + 1<\/em><\/p>\n<p dir=\"ltr\"><em>3 862 = 3000 + 800 + 60 + 2<\/em><\/p>\n<p dir=\"ltr\"><em>824 = 800 +20 + 4<\/em><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_2_Viet_so_theo_yeu_cau_cua_van_de\"><\/span>M\u1eabu 2: Vi\u1ebft s\u1ed1 theo y\u00eau c\u1ea7u c\u1ee7a v\u1ea5n \u0111\u1ec1<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p: H\u1ecd s\u1ebd ph\u1ea3i d\u1ef1a v\u00e0o ch\u1eef s\u1ed1 \u0111\u00e3 bi\u1ebft \u0111\u1ec3 vi\u1ebft th\u00e0nh c\u00e1c t\u1eeb \u1edf h\u00e0ng b\u00ean ph\u1ea3i v\u00e0 l\u1edbp t\u1eeb tr\u00e1i sang ph\u1ea3i v\u00e0 ng\u01b0\u1ee3c l\u1ea1i.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: 24 771: 2 ch\u1ee5c ngh\u00ecn, 4 ngh\u00ecn, 7 tr\u0103m, 7 t\u00e1 v\u00e0 1 \u0111\u01a1n v\u1ecb<\/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\/toan-lop-4-hang-va-lop-2.jpg\" alt=\"C\u00f3 nhi\u1ec1u lo\u1ea1i b\u00e0i t\u1eadp v\u1ec1 h\u00e0ng h\u00f3a v\u00e0 c\u00e1c l\u1edbp h\u1ecdc cho tr\u1ebb em th\u1ef1c h\u00e0nh. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_3_Doc_so_va_chi_ra_gia_tri_cua_1_chu_so_cua_hang\"><\/span>M\u1eabu 3: \u0110\u1ecdc s\u1ed1 v\u00e0 ch\u1ec9 ra gi\u00e1 tr\u1ecb c\u1ee7a 1 ch\u1eef s\u1ed1 c\u1ee7a h\u00e0ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p: M\u1eabu n\u00e0y s\u1ebd \u0111\u1ed1i ngh\u1ecbch v\u1edbi 2 tr\u00ean. V\u00ec v\u1eady, h\u1ecd c\u0169ng s\u1ebd vi\u1ebft l\u1ea1i s\u1ed1 theo th\u1ee9 t\u1ef1 t\u1eeb tr\u00e1i sang ph\u1ea3i trong c\u00e1c h\u00e0ng v\u00e0 c\u00e1c l\u1edbp \u0111\u01b0\u1ee3c \u0111\u01b0a ra.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: \u0111\u1ecdc c\u00e1c s\u1ed1 sau v\u00e0 cho bi\u1ebft s\u1ed1 5 c\u1ee7a c\u00e1c s\u1ed1 v\u00e0 l\u1edbp: 657, 52 863, 2583, 185<\/em><\/p>\n<ul>\n<li dir=\"ltr\"><em>657: S\u00e1u tr\u0103m n\u0103m m\u01b0\u01a1i. S\u1ed1 5 thu\u1ed9c v\u1ec1 h\u00e0ng t\u00e1, l\u1edbp \u0111\u01a1n v\u1ecb.<\/em><\/li>\n<li dir=\"ltr\"><em>52 863: n\u0103m m\u01b0\u01a1i ngh\u00ecn t\u00e1m tr\u0103m s\u00e1u m\u01b0\u01a1i ba. S\u1ed1 5 thu\u1ed9c v\u1ec1 h\u00e0ng ch\u1ee5c ng\u00e0n, h\u00e0ng ng\u00e0n ng\u00e0n.<\/em><\/li>\n<li dir=\"ltr\"><em>2583: Hai ngh\u00ecn n\u0103m tr\u0103m t\u00e1m m\u01b0\u01a1i ba. S\u1ed1 5 thu\u1ed9c v\u1ec1 h\u00e0ng tr\u0103m, l\u1edbp \u0111\u01a1n v\u1ecb.<\/em><\/li>\n<\/ul>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_4_So_sanh_so_tu_nhien_voi_nhieu_chu_so\"><\/span>M\u1eabu 4: So s\u00e1nh s\u1ed1 t\u1ef1 nhi\u00ean v\u1edbi nhi\u1ec1u ch\u1eef s\u1ed1<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p: Trong chu\u1ed7i t\u1ef1 nhi\u00ean l\u00e0 0 &#8211; 9, s\u1ed1 \u0111\u1ea7u ti\u00ean s\u1ebd nh\u1ecf h\u01a1n s\u1ed1 ph\u00eda sau v\u00e0 ng\u01b0\u1ee3c l\u1ea1i, s\u1ed1 s\u1ebd l\u1edbn h\u01a1n s\u1ed1 \u0111\u1ea7u ti\u00ean. Tr\u00ean s\u1ed1, s\u1ed1 g\u1ea7n h\u01a1n v\u1edbi 0 s\u1ebd nh\u1ecf h\u01a1n (v\u00ed d\u1ee5: 3  10; 14&gt; 10; &#8230;).<\/p>\n<p dir=\"ltr\">Quy t\u1eafc:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Nh\u1eefng g\u00ec nhi\u1ec1u ch\u1eef s\u1ed1 l\u00e0 l\u1edbn h\u01a1n v\u00e0 ng\u01b0\u1ee3c l\u1ea1i.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">N\u1ebfu 2 s\u1ed1 c\u00f3 c\u00e1c ch\u1eef s\u1ed1 b\u1eb1ng nhau, ch\u00fang t\u00f4i s\u1ebd so s\u00e1nh t\u1eebng c\u1eb7p s\u1ed1 trong c\u00f9ng m\u1ed9t h\u00e0ng t\u1eeb tr\u00e1i sang ph\u1ea3i. V\u00ed d\u1ee5: 23 371 v\u00e0 72 472 c\u00f3 n\u0103m ch\u1eef s\u1ed1, b\u1eb1ng h\u00e0ng ch\u1ee5c ng\u00e0n (h\u00e0ng ch\u1ee5c ngh\u00ecn) v\u1edbi 2 &lt;7. V\u00ec v\u1eady, 23 371 &lt;72 472.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">N\u1ebfu hai s\u1ed1 c\u00f3 c\u1eb7p ch\u1eef s\u1ed1 trong m\u1ed7i h\u00e0ng b\u1eb1ng nhau, hai s\u1ed1 b\u1eb1ng nhau. V\u00ed d\u1ee5 34 917 = 34 917<\/p>\n<\/li>\n<\/ul>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bi_quyet_de_giup_tre_hoc_kien_%E2%80%8B%E2%80%8Bthuc_san_pham_va_cac_lop_toan_lop_4_mot_cach_hieu_qua\"><\/span>B\u00ed quy\u1ebft \u0111\u1ec3 gi\u00fap tr\u1ebb h\u1ecdc ki\u1ebfn \u200b\u200bth\u1ee9c s\u1ea3n ph\u1ea9m v\u00e0 c\u00e1c l\u1edbp to\u00e1n l\u1edbp 4 m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Kh\u00f4ng qu\u00e1 kh\u00f3 \u0111\u1ec3 hi\u1ec3u ki\u1ebfn \u200b\u200bth\u1ee9c v\u00e0 ki\u1ebfn \u200b\u200bth\u1ee9c c\u1ee7a l\u1edbp, nh\u01b0ng n\u00f3 l\u00e0 m\u1ed9t n\u1ec1n t\u1ea3ng quan tr\u1ecdng khi h\u1ecdc to\u00e1n m\u00e0 m\u1ecdi \u0111\u1ee9a tr\u1ebb c\u1ea7n nh\u1edb. \u0110\u1ec3 gi\u00fap tr\u1ebb nh\u1edb ki\u1ebfn \u200b\u200bth\u1ee9c n\u00e0y t\u1ed1t h\u01a1n, cha m\u1eb9 c\u00f3 th\u1ec3 gi\u00fap con c\u00e1i h\u1ecdc theo nh\u1eefng b\u00ed m\u1eadt sau:<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Xay_dung_mot_nen_tang_toan_hoc_cho_tre_em_voi_toan_hoc_khi\"><\/span>X\u00e2y d\u1ef1ng m\u1ed9t n\u1ec1n t\u1ea3ng to\u00e1n h\u1ecdc cho tr\u1ebb em v\u1edbi to\u00e1n h\u1ecdc kh\u1ec9<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math l\u00e0 m\u1ed9t \u1ee9ng d\u1ee5ng \u0111\u1ec3 gi\u1ea3ng d\u1ea1y to\u00e1n h\u1ecdc tr\u1ef1c tuy\u1ebfn cho tr\u1ebb m\u1eabu gi\u00e1o v\u00e0 tr\u1ebb ti\u1ec3u h\u1ecdc do Kh\u1ec9 ph\u00e1t tri\u1ec3n, n\u1ed9i dung \u0111\u01b0\u1ee3c theo s\u00e1t b\u1edfi Ch\u01b0\u01a1ng tr\u00ecnh Gi\u00e1o d\u1ee5c m\u1edbi theo ti\u00eau chu\u1ea9n c\u1ee7a B\u1ed9 Gi\u00e1o d\u1ee5c v\u00e0 \u0110\u00e0o t\u1ea1o. \u0110\u00e2y l\u00e0 c\u1ea3 hai h\u1ed7 tr\u1ee3 tr\u1ebb h\u1ecdc to\u00e1n t\u1ed1t h\u01a1n v\u00e0 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng to\u00e1n h\u1ecdc tr\u00ean s\u00e2n m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/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\/toan-lop-4-hang-va-lop-3.jpg\" alt=\"Ch\u1ec9 c\u1ea7n h\u1ecdc to\u00e1n trong khi ch\u01a1i v\u1edbi to\u00e1n h\u1ecdc kh\u1ec9. (\u1ea2nh: Kh\u1ec9)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">C\u1ee5 th\u1ec3, c\u00e1c b\u00e0i gi\u1ea3ng c\u1ee7a Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math c\u00f3 h\u01a1n 400 b\u00e0i h\u1ecdc, tu\u00e2n th\u1ee7 h\u01a1n 60 ch\u1ee7 \u0111\u1ec1 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, ph\u00f9 h\u1ee3p cho m\u1ed7i \u0111\u1ed9 tu\u1ed5i. Do \u0111\u00f3 gi\u00fap cha m\u1eb9 d\u1ec5 d\u00e0ng ch\u1ecdn c\u1ea5p \u0111\u1ed9 ph\u00f9 h\u1ee3p nh\u1ea5t v\u1edbi kh\u1ea3 n\u0103ng c\u1ee7a h\u1ecd.<\/p>\n<p dir=\"ltr\">T\u00ednh n\u0103ng \u0111\u1eb7c bi\u1ec7t \u1edf \u0111\u00e2y l\u00e0 ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n h\u1ecdc t\u1ea1i Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n c\u1ea9n th\u1eadn b\u1edfi nh\u00f3m c\u00e1c chuy\u00ean gia kh\u1ec9, \u0111\u01b0\u1ee3c c\u00e1 nh\u00e2n h\u00f3a b\u1edfi m\u1ed7i \u0111\u1ed9 tu\u1ed5i v\u00e0 kh\u1ea3 n\u0103ng h\u1ecdc t\u1eadp c\u1ee7a em b\u00e9. K\u1ebft h\u1ee3p v\u1edbi b\u00e0i h\u1ecdc \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf b\u1edfi video, h\u00ecnh \u1ea3nh s\u1ed1ng \u0111\u1ed9ng \u0111\u1ec3 l\u00e0m cho to\u00e1n h\u1ecdc c\u1ee7a em b\u00e9 h\u1ecdc th\u00fa v\u1ecb h\u01a1n v\u00e0 \u00edt nh\u00e0m ch\u00e1n h\u01a1n.<\/p>\n<p dir=\"ltr\">Ch\u01b0a k\u1ec3, Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math c\u0169ng x\u00e2y d\u1ef1ng m\u1ed9t h\u1ec7 th\u1ed1ng g\u1ed3m h\u01a1n 10.000 ho\u1ea1t \u0111\u1ed9ng t\u01b0\u01a1ng t\u00e1c. Th\u00f4ng qua \u0111\u00f3, em b\u00e9 v\u1eeba h\u1ecdc v\u00e0 ch\u01a1i c\u00e1c tr\u00f2 ch\u01a1i li\u00ean quan \u0111\u1ebfn to\u00e1n h\u1ecdc. \u0110i\u1ec1u n\u00e0y gi\u00fap k\u00edch th\u00edch kh\u1ea3 n\u0103ng suy ngh\u0129 v\u00e0 h\u1ecdc to\u00e1n c\u1ee7a tr\u1ebb. \u0110i\u1ec1u n\u00e0y d\u1ea7n d\u1ea7n t\u1ea1o th\u00e0nh m\u1ed9t v\u1ea5n \u0111\u1ec1 \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1, gi\u00fap tr\u1ebb em ti\u1ebfp c\u1eadn to\u00e1n h\u1ecdc theo h\u01b0\u1edbng \u0111\u00e0o t\u1ea1o t\u01b0 duy logic thay v\u00ec h\u1ecdc v\u1eb9t m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p>\n<p dir=\"ltr\"><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\/thamgiangay.png\" alt=\"\" width=\"185\"><\/p>\n<p dir=\"ltr\">T\u00ecm hi\u1ec3u th\u00eam v\u1ec1 Kh\u1ec9 \u1edf \u0111\u00e2y:<\/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<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cung_voi_tre_em_hoc_toan_va_lop_hoc_dua_tren_thuc_hanh\"><\/span>C\u00f9ng v\u1edbi tr\u1ebb em h\u1ecdc to\u00e1n v\u00e0 l\u1edbp h\u1ecdc d\u1ef1a tr\u00ean th\u1ef1c h\u00e0nh<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Trong ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n h\u1ecdc l\u1edbp 4, c\u00f3 nhi\u1ec1u l\u1edbp <em>V\u00ed d\u1ee5, trong th\u1ef1c t\u1ebf t\u1eeb ti\u1ec1n gi\u1ea5y, s\u1ed1 l\u01b0\u1ee3ng tr\u00ean b\u1ea3ng qu\u1ea3ng c\u00e1o, gi\u00e1 s\u1ea3n ph\u1ea9m b\u00ean ngo\u00e0i si\u00eau th\u1ecb &#8230; <\/em>Khi l\u1ea5y v\u00ed d\u1ee5 v\u00e0 cho tr\u1ebb em th\u00f4ng qua th\u1ef1c h\u00e0nh s\u1ebd gi\u00fap tr\u1ebb d\u1ec5 d\u00e0ng c\u00f3 \u0111\u01b0\u1ee3c ki\u1ebfn \u200b\u200bth\u1ee9c v\u00e0 ghi nh\u1edb ch\u00fang hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"To_chuc_cac_tro_choi_toan_hoc_cho_tre_em\"><\/span>T\u1ed5 ch\u1ee9c c\u00e1c tr\u00f2 ch\u01a1i to\u00e1n h\u1ecdc cho tr\u1ebb em<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">H\u1ecdc to\u00e1n th\u00f4ng qua tr\u00f2 ch\u01a1i l\u00e0 m\u1ed9t trong nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t b\u1edfi nhi\u1ec1u chuy\u00ean gia gi\u00e1o d\u1ee5c. B\u1edfi v\u00ec \u0111\u1ed1i v\u1edbi tr\u1ebb em l\u1edbp 4 v\u1eabn c\u00f2n kh\u00e1 vui t\u01b0\u01a1i, khi h\u1ecdc to\u00e1n th\u00f4ng qua tr\u00f2 ch\u01a1i, ch\u00fang s\u1ebd quan t\u00e2m h\u01a1n, k\u00edch th\u00edch suy ngh\u0129 n\u00e3o b\u1ed9 c\u1ee7a tr\u1ebb em theo c\u00e1ch t\u1ed1t h\u01a1n.<\/p>\n<p dir=\"ltr\">V\u1ec1 tr\u00f2 ch\u01a1i, cha m\u1eb9 c\u00f3 th\u1ec3 ngh\u0129 v\u1ec1 t\u1eebng v\u1ea5n \u0111\u1ec1 nh\u01b0<em> C\u00e2u \u0111\u1ed1, ph\u00e2n t\u00edch s\u1ed1, ki\u1ec3m tra m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c, &#8230; <\/em>Ho\u1eb7c b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ea7u t\u01b0 v\u00e0o c\u00e1c tr\u00f2 ch\u01a1i \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 tr\u01b0\u1edbc \u0111\u1ec3 h\u1ed7 tr\u1ee3 h\u1ecdc to\u00e1n c\u1ee7a tr\u1ebb em t\u1ed1t h\u01a1n.<\/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\/toan-lop-4-hang-va-lop-4.jpg\" alt=\"H\u00e3y t\u1eadp luy\u1ec7n v\u1edbi tr\u1ebb em, ch\u01a1i c\u00e1c tr\u00f2 ch\u01a1i to\u00e1n r\u1ea5t t\u1ed1t cho s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a tr\u1ebb em. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Thuc_hanh_lien_tuc_la_rat_quan_trong\"><\/span>Th\u1ef1c h\u00e0nh li\u00ean t\u1ee5c l\u00e0 r\u1ea5t quan tr\u1ecdng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Thay v\u00ec ch\u1ec9 hi\u1ec3u l\u00fd thuy\u1ebft m\u00e0 em b\u00e9 nhanh ch\u00f3ng qu\u00ean m\u1ea5t, cha m\u1eb9 n\u00ean cho ch\u00fang<em> Th\u1ef1c h\u00e0nh th\u01b0\u1eddng xuy\u00ean h\u01a1n th\u00f4ng qua 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, ph\u1ee5 huynh th\u01b0\u1eddng \u0111\u1eb7t c\u00e2u h\u1ecfi v\u1ec1 h\u00e0ng h\u00f3a v\u00e0 c\u00e1c l\u1edbp h\u1ecdc \u0111\u1ec3 gi\u1eef kh\u1ea3 n\u0103ng hi\u1ec3u v\u00e0 gi\u1ea3i quy\u1ebft b\u00e0i t\u1eadp v\u1ec1 nh\u00e0 c\u1ee7a tr\u1ebb em, &#8230;<\/em><\/p>\n<p dir=\"ltr\">\u0110\u00f3 l\u00e0 th\u1ef1c h\u00e0nh th\u01b0\u1eddng xuy\u00ean s\u1ebd gi\u00fap tr\u1ebb hi\u1ec3u b\u1ea3n ch\u1ea5t c\u1ee7a b\u00e0i h\u1ecdc, c\u0169ng nh\u01b0 d\u1ec5 \u00e1p \u200b\u200bd\u1ee5ng h\u01a1n khi gi\u1ea3i quy\u1ebft to\u00e1n v\u00e0 \u1ee9ng d\u1ee5ng trong th\u1ef1c t\u1ebf.<\/p>\n<p dir=\"ltr\">\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"4_-Bai_tap_toan_hoc_va_lop_hoc_cho_em_be_cua_ban_su_dung\"><\/span>4 -B\u00e0i t\u1eadp to\u00e1n h\u1ecdc v\u00e0 l\u1edbp h\u1ecdc cho em b\u00e9 c\u1ee7a b\u1ea1n s\u1eed d\u1ee5ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 b\u00e0i t\u1eadp li\u00ean quan \u0111\u1ebfn ki\u1ebfn \u200b\u200bth\u1ee9c s\u1ea3n ph\u1ea9m v\u00e0 l\u1edbp to\u00e1n l\u1edbp 4 \u0111\u1ec3 h\u1ecd th\u1ef1c h\u00e0nh c\u00f9ng nhau.<\/p>\n<p dir=\"ltr\">B\u00e0i 1: Vi\u1ebft d\u01b0\u1edbi bi\u1ec3u m\u1eabu<\/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\/toan-lop-4-hang-va-lop-5.jpg\" alt=\"\" width=\"100%\"><\/p>\n<p dir=\"ltr\">B\u00e0i 2: a) \u0110\u1ecdc c\u00e1c s\u1ed1 sau v\u00e0 cho bi\u1ebft s\u1ed1 3 trong m\u1ed7i l\u1edbp n\u00e0o l\u00e0:<\/p>\n<p dir=\"ltr\">46 307; 56 032; 123 517; 305 804; 960 783.<\/p>\n<p dir=\"ltr\">b) Ghi l\u1ea1i gi\u00e1 tr\u1ecb c\u1ee7a s\u1ed1 7 trong m\u1ed7i s\u1ed1 trong b\u1ea3ng 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\/toan-lop-4-hang-va-lop-6.jpg\" alt=\"\" width=\"100%\"><\/p>\n<p dir=\"ltr\">B\u00e0i 3: Vi\u1ebft t\u1eebng s\u1ed1 sau t\u1ed5ng (theo m\u1eabu):<\/p>\n<p dir=\"ltr\">52 314; 503 060; 83 760; 176 091.<\/p>\n<p dir=\"ltr\">M\u1eabu: 52314 = 50000 + 2000 + 300 + 10 + 4.<\/p>\n<p dir=\"ltr\">B\u00e0i h\u1ecdc 4: Vi\u1ebft s\u1ed1, bi\u1ebft r\u1eb1ng s\u1ed1 bao g\u1ed3m:<\/p>\n<p dir=\"ltr\">a) 5 tr\u0103m ngh\u00ecn, 7 tr\u0103m, 3 t\u00e1 v\u00e0 5 \u0111\u01a1n v\u1ecb;<\/p>\n<p dir=\"ltr\">b) 3 tr\u0103m ngh\u00ecn, 4 tr\u0103m 2 \u0111\u01a1n v\u1ecb;<\/p>\n<p dir=\"ltr\">c) 2 tr\u0103m ngh\u00ecn, 4 ngh\u00ecn v\u00e0 6 t\u00e1;<\/p>\n<p dir=\"ltr\">d) 8 ch\u1ee5c ngh\u00ecn v\u00e0 2 \u0111\u01a1n v\u1ecb.<\/p>\n<p dir=\"ltr\">B\u00e0i 5: Vi\u1ebft s\u1ed1 th\u00edch h\u1ee3p trong d\u1ea5u ch\u1ea5m (theo m\u1eabu):<\/p>\n<p dir=\"ltr\">M\u1eabu: L\u1edbp h\u00e0ng ng\u00e0n l\u1edbp 832 573 bao g\u1ed3m c\u00e1c ch\u1eef s\u1ed1: 8; 3; 2.<\/p>\n<p dir=\"ltr\">a) H\u00e0ng ng\u00e0n l\u1edbp c\u1ee7a 603 786 bao g\u1ed3m c\u00e1c s\u1ed1: &#8230;; &#8230;; H\u1ebbo l\u00e1nh<\/p>\n<p dir=\"ltr\">b) l\u1edbp \u0111\u01a1n v\u1ecb c\u1ee7a 603 785 bao g\u1ed3m c\u00e1c s\u1ed1: &#8230;; &#8230;; H\u1ebbo l\u00e1nh<\/p>\n<p dir=\"ltr\">c) l\u1edbp \u0111\u01a1n v\u1ecb c\u1ee7a 532 004 bao g\u1ed3m c\u00e1c s\u1ed1: &#8230;; &#8230;; H\u1ebbo l\u00e1nh<\/p>\n<p dir=\"ltr\">B\u00e0i 6: K\u1ebft n\u1ed1i t\u1eebng s\u1ed1 v\u1edbi t\u1ed5ng s\u1ed1 c\u00e1c s\u1ed1 \u0111\u00f3:<\/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\/toan-lop-4-hang-va-lop-7.jpg\" alt=\"\" width=\"100%\"><\/p>\n<p dir=\"ltr\">B\u00e0i 7: Vi\u1ebft s\u1ed1, bi\u1ebft r\u1eb1ng s\u1ed1 bao g\u1ed3m:<\/p>\n<p dir=\"ltr\">a) Hai tri\u1ec7u, t\u00e1m tr\u0103m ngh\u00ecn, ba m\u01b0\u01a1i ng\u00e0n, b\u1ed1n ngh\u00ecn, n\u0103m tr\u0103m, hai m\u01b0\u01a1i s\u00e1u \u0111\u01a1n v\u1ecb.<\/p>\n<p dir=\"ltr\">b) n\u0103m tri\u1ec7u, ba tr\u0103m ngh\u00ecn, b\u1ed1n ngh\u00ecn v\u00e0 b\u1ea3y \u0111\u01a1n v\u1ecb. <\/p>\n<p dir=\"ltr\">B\u00e0i 8: T\u00ecm m\u1ed9t ch\u1eef s\u1ed1 3 ch\u1eef s\u1ed1 5 l\u1ea7n 5 l\u1ea7n s\u1ed1 \u0111\u01a1n v\u1ecb v\u00e0 t\u1ed5ng s\u1ed1 3 ch\u1eef s\u1ed1 b\u1eb1ng s\u1ed1 l\u01b0\u1ee3ng nh\u1ecf nh\u1ea5t l\u00e0 2 ch\u1eef s\u1ed1.<\/p>\n<p dir=\"ltr\">B\u00e0i h\u1ecdc 9:<\/p>\n<p dir=\"ltr\">a) Khi vi\u1ebft th\u00eam s\u1ed1 5 \u1edf b\u00ean tr\u00e1i c\u1ee7a s\u1ed1 c\u00f3 b\u1ed1n ch\u1eef s\u1ed1, \u0111\u00f3 l\u00e0 bao nhi\u00eau s\u1ed1 m\u1edbi?<\/p>\n<p dir=\"ltr\">b) Khi b\u1ea1n vi\u1ebft th\u00eam m\u1ed9t s\u1ed1 6 v\u00e0o b\u00ean tr\u00e1i c\u1ee7a s\u1ed1 v\u1edbi n\u0103m ch\u1eef s\u1ed1, \u0111\u00f3 l\u00e0 bao nhi\u00eau s\u1ed1 m\u1edbi?<\/p>\n<p dir=\"ltr\">B\u00e0i 10: Vi\u1ebft s\u1ed1 s\u00e1u ch\u1eef s\u1ed1 v\u00e0 nh\u1ecf h\u01a1n 110000.<\/p>\n<p dir=\"ltr\">B\u00e0i 11: T\u00ecm s\u00e1u s\u1ed1 ch\u1eef s\u1ed1 v\u00e0 t\u1ed5ng c\u1ee7a c\u00e1c ch\u1eef s\u1ed1 trong m\u1ed7i s\u1ed1 b\u1eb1ng 53. S\u1eafp x\u1ebfp c\u00e1c s\u1ed1 \u0111\u00f3 theo th\u1ee9 t\u1ef1 t\u1eeb tr\u1ebb \u0111\u1ebfn l\u1edbn.<\/p>\n<p dir=\"ltr\">B\u00e0i h\u1ecdc 12:<\/p>\n<p dir=\"ltr\">a) Vi\u1ebft s\u1ed1 l\u1edbn nh\u1ea5t v\u1edbi s\u00e1u ch\u1eef s\u1ed1 kh\u00e1c nhau.<\/p>\n<p dir=\"ltr\">b) Vi\u1ebft s\u1ed1 nh\u1ecf nh\u1ea5t v\u1edbi s\u00e1u ch\u1eef s\u1ed1 kh\u00e1c nhau.<\/p>\n<p dir=\"ltr\">B\u00e0i h\u1ecdc 13: H\u00e3y \u0111\u1ec3 s\u1ed1 4 trong s\u1ed1 sau thu\u1ed9c v\u1ec1 d\u00f2ng n\u00e0o?<\/p>\n<p dir=\"ltr\">745321; 826435; 451369; 574098<\/p>\n<p dir=\"ltr\">B\u00e0i h\u1ecdc 14: Vi\u1ebft s\u1ed1 th\u00edch h\u1ee3p trong d\u1ea5u ch\u1ea5m:<\/p>\n<p dir=\"ltr\">a) 452701; 452703; 452705; &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.; &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.; &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.<\/p>\n<p dir=\"ltr\">b) 599982; 599984; 599986; &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.; &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.; &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.<\/p>\n<p dir=\"ltr\">c) 365845; 365840; 365835; &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.; &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.; &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.<\/p>\n<p dir=\"ltr\">d) 758732; 758632; 758532; &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.; &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.; &#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.<\/p>\n<p dir=\"ltr\">B\u00e0i h\u1ecdc 15: S\u1ed1 l\u1edbn nh\u1ea5t c\u00f3 s\u00e1u ch\u1eef s\u1ed1 m\u00e0 h\u00e0ng tr\u0103m ng\u00e0n l\u00e0 8 v\u00e0 h\u00e0ng tr\u0103m l\u00e0 7 l\u00e0:<\/p>\n<p dir=\"ltr\">A. 999999<\/p>\n<p dir=\"ltr\">B. 998799<\/p>\n<p dir=\"ltr\">C. 899799<\/p>\n<p dir=\"ltr\">D. 799899 <\/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 ki\u1ebfn \u200b\u200bth\u1ee9c c\u01a1 b\u1ea3n nh\u1ea5t v\u1ec1 to\u00e1n h\u1ecdc 4 -row v\u00e0 l\u1edbp. Do \u0111\u00f3, c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng h\u00ecnh th\u1ee9c to\u00e1n h\u1ecdc n\u00e0y kh\u00f4ng qu\u00e1 kh\u00f3, ch\u1ec9 c\u1ea7n l\u00e0m ch\u1ee7 l\u00fd thuy\u1ebft, k\u1ebft h\u1ee3p v\u1edbi vi\u1ec7c \u00e1p d\u1ee5ng c\u00e1c b\u00ed m\u1eadt m\u00e0 kh\u1ec9 chia s\u1ebb \u1edf tr\u00ean \u0111\u1ec3 gi\u00fap tr\u1ebb h\u1ecdc hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n<p>Ngu\u1ed3n: <a href=\"http:\/\/www.ckconitsha.com\/vn\/\">http:\/\/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>4 -Row v\u00e0 to\u00e1n h\u1ecdc l\u00e0 m\u1ed9t trong nh\u1eefng ki\u1ebfn \u200b\u200bth\u1ee9c b\u00e0i h\u1ecdc m\u00e0 tr\u1ebb em s\u1ebd l\u00e0m quen, h\u1ecdc v\u00e0 gi\u1ea3i c\u00e1c b\u00e0i t\u1eadp. \u0110\u1ec3 gi\u00fap h\u1ecd d\u1ec5 d\u00e0ng n\u1eafm b\u1eaft, ti\u1ebfp thu v\u00e0 chinh ph\u1ee5c ki\u1ebfn \u200b\u200bth\u1ee9c n\u00e0y, Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef s\u1ebd chia s\u1ebb th\u00f4ng tin v\u00e0 b\u00ed m\u1eadt&#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-16376","post","type-post","status-publish","format-standard","hentry","category-kien-thuc"],"_links":{"self":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/16376","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=16376"}],"version-history":[{"count":2,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/16376\/revisions"}],"predecessor-version":[{"id":22704,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/16376\/revisions\/22704"}],"wp:attachment":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/media?parent=16376"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/categories?post=16376"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/tags?post=16376"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}