{"id":15526,"date":"2025-07-01T23:15:04","date_gmt":"2025-07-01T16:15:04","guid":{"rendered":"https:\/\/www.ckconitsha.com\/vn\/?p=15526"},"modified":"2025-07-02T03:05:07","modified_gmt":"2025-07-01T20:05:07","slug":"meo-hoc-nhanh-toan-lop-2-8-cong-voi-mot-so-meo-tinh-nhanh","status":"publish","type":"post","link":"https:\/\/www.ckconitsha.com\/vn\/meo-hoc-nhanh-toan-lop-2-8-cong-voi-mot-so-meo-tinh-nhanh\/","title":{"rendered":"M\u1eb9o h\u1ecdc nhanh to\u00e1n l\u1edbp 2 8 c\u1ed9ng v\u1edbi m\u1ed9t s\u1ed1 &#8220;M\u1eb9o&#8221; t\u00ednh nhanh"},"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\/meo-hoc-nhanh-toan-lop-2-8-cong-voi-mot-so-meo-tinh-nhanh\/#Toan_hoc_cap_2_cong_voi_mot_so\" >To\u00e1n h\u1ecdc c\u1ea5p 2 c\u1ed9ng v\u1edbi m\u1ed9t s\u1ed1?<\/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\/meo-hoc-nhanh-toan-lop-2-8-cong-voi-mot-so-meo-tinh-nhanh\/#Bai_tap_loai_8_cong_voi_mot_so_toan_hoc_thu_2\" >B\u00e0i t\u1eadp lo\u1ea1i 8 c\u1ed9ng v\u1edbi m\u1ed9t s\u1ed1 to\u00e1n h\u1ecdc th\u1ee9 2<\/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\/meo-hoc-nhanh-toan-lop-2-8-cong-voi-mot-so-meo-tinh-nhanh\/#Mau_1_Tinh_toan\" >M\u1eabu 1: 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-4\" href=\"https:\/\/www.ckconitsha.com\/vn\/meo-hoc-nhanh-toan-lop-2-8-cong-voi-mot-so-meo-tinh-nhanh\/#Mau_2_Tim_dung_so\" >M\u1eabu 2: T\u00ecm \u0111\u00fang s\u1ed1<\/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\/meo-hoc-nhanh-toan-lop-2-8-cong-voi-mot-so-meo-tinh-nhanh\/#Mau_3_So_sanh\" >M\u1eabu 3: So s\u00e1nh<\/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\/meo-hoc-nhanh-toan-lop-2-8-cong-voi-mot-so-meo-tinh-nhanh\/#Mau_4_Giai_toan_bang_cac_tu\" >M\u1eabu 4: Gi\u1ea3i to\u00e1n b\u1eb1ng c\u00e1c t\u1eeb<\/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\/meo-hoc-nhanh-toan-lop-2-8-cong-voi-mot-so-meo-tinh-nhanh\/#Mot_so_bi_mat_cua_toan_hoc_cap_2_8_cong_voi_mot_so_hieu_qua\" >M\u1ed9t s\u1ed1 b\u00ed m\u1eadt c\u1ee7a to\u00e1n h\u1ecdc c\u1ea5p 2 8 c\u1ed9ng v\u1edbi m\u1ed9t s\u1ed1 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\/meo-hoc-nhanh-toan-lop-2-8-cong-voi-mot-so-meo-tinh-nhanh\/#Toan_toan_hoc_voi_toan_hoc\" >To\u00e1n to\u00e1n h\u1ecdc v\u1edbi to\u00e1n h\u1ecdc<\/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\/meo-hoc-nhanh-toan-lop-2-8-cong-voi-mot-so-meo-tinh-nhanh\/#Su_dung_cac_meo_de_tinh_toan_tinh_than_8_cong_voi_so_luong_nhanh_chong\" >S\u1eed d\u1ee5ng c\u00e1c m\u1eb9o \u0111\u1ec3 t\u00ednh to\u00e1n tinh th\u1ea7n 8 c\u1ed9ng v\u1edbi s\u1ed1 l\u01b0\u1ee3ng nhanh ch\u00f3ng<\/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\/meo-hoc-nhanh-toan-lop-2-8-cong-voi-mot-so-meo-tinh-nhanh\/#Hoc_tap_va_thuc_hanh_de_cai_thien_cac_ky_nang_tinh_toan_tinh_than_cong_voi_so_luong_nhanh_chong\" >H\u1ecdc t\u1eadp v\u00e0 th\u1ef1c h\u00e0nh \u0111\u1ec3 c\u1ea3i thi\u1ec7n c\u00e1c k\u1ef9 n\u0103ng t\u00ednh to\u00e1n tinh th\u1ea7n c\u1ed9ng v\u1edbi s\u1ed1 l\u01b0\u1ee3ng nhanh ch\u00f3ng<\/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\/meo-hoc-nhanh-toan-lop-2-8-cong-voi-mot-so-meo-tinh-nhanh\/#Bai_tap_toan_cap_2_8_cong_voi_mot_so_cho_tre_em_thuc_hanh\" >B\u00e0i t\u1eadp to\u00e1n c\u1ea5p 2 8 c\u1ed9ng v\u1edbi m\u1ed9t s\u1ed1 cho tr\u1ebb em 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-12\" href=\"https:\/\/www.ckconitsha.com\/vn\/meo-hoc-nhanh-toan-lop-2-8-cong-voi-mot-so-meo-tinh-nhanh\/#Mot_so_ghi_chu_Khi_cha_me_day_con_hoc_8_cong_voi_mot_so_toan_hoc_lop_2\" >M\u1ed9t s\u1ed1 ghi ch\u00fa Khi cha m\u1eb9 d\u1ea1y con h\u1ecdc 8 c\u1ed9ng v\u1edbi m\u1ed9t s\u1ed1 to\u00e1n h\u1ecdc l\u1edbp 2<\/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\/meo-hoc-nhanh-toan-lop-2-8-cong-voi-mot-so-meo-tinh-nhanh\/#Ket_luan\" >K\u1ebft lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n<\/p>\n<p>To\u00e1n h\u1ecdc c\u1ea5p 2 c\u1ed9ng v\u1edbi m\u1ed9t s\u1ed1 l\u00e0 m\u1ed9t trong nh\u1eefng lo\u1ea1i b\u00e0i t\u1eadp tr\u00f4ng \u0111\u01a1n gi\u1ea3n, nh\u01b0ng nhi\u1ec1u tr\u1ebb em khi gi\u1ea3i to\u00e1n l\u00e0 kh\u00e1 x\u1ea5u h\u1ed5 v\u00e0 k\u1ebft qu\u1ea3 sai. V\u00ec v\u1eady, \u0111\u1ec3 gi\u00fap con b\u1ea1n chinh ph\u1ee5c h\u00ecnh th\u1ee9c to\u00e1n h\u1ecdc n\u00e0y m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3, h\u00e3y th\u1eed em b\u00e9 \u0111\u1ec3 \u00e1p d\u1ee5ng c\u00e1c m\u1eb9o t\u00ednh to\u00e1n nhanh m\u00e0 kh\u1ec9 chia s\u1ebb trong th\u1eddi gian ng\u1eafn.<\/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=\"Toan_hoc_cap_2_cong_voi_mot_so\"><\/span>To\u00e1n h\u1ecdc c\u1ea5p 2 c\u1ed9ng v\u1edbi m\u1ed9t s\u1ed1?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">C\u00e1c b\u00e0i t\u1eadp to\u00e1n &#8220;8 c\u1ed9ng v\u1edbi m\u1ed9t s\u1ed1&#8221; l\u00e0 h\u00ecnh th\u1ee9c c\u1ee7a c\u00e1c b\u00e0i t\u1eadp \u0111\u1ec3 th\u1ef1c hi\u1ec7n t\u00ednh to\u00e1n c\u1ed9ng gi\u1eefa 8 v\u00e0 c\u00e1c b\u00e0i kh\u00e1c theo tr\u00ecnh t\u1ef1 t\u1ef1 nhi\u00ean l\u00e0 0 &#8211; 9.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: 8 + 7 = 15<\/em><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_tap_loai_8_cong_voi_mot_so_toan_hoc_thu_2\"><\/span>B\u00e0i t\u1eadp lo\u1ea1i 8 c\u1ed9ng v\u1edbi m\u1ed9t s\u1ed1 to\u00e1n h\u1ecdc th\u1ee9 2<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">T\u01b0\u01a1ng t\u1ef1 nh\u01b0 c\u00e1c b\u00e0i t\u1eadp t\u00ednh to\u00e1n l\u1edbp 2 kh\u00e1c, v\u1edbi 8 c\u1ed9ng v\u1edbi m\u1ed9t s\u1ed1 c\u0169ng s\u1ebd c\u00f3 c\u00e1c lo\u1ea1i b\u00e0i t\u1eadp c\u01a1 b\u1ea3n 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-2-8-cong-voi-mot-so-1.jpg\" alt=\"C\u00f3 nhi\u1ec1u lo\u1ea1i b\u00e0i t\u1eadp 8 c\u1ed9ng v\u1edbi m\u1ed9t s\u1ed1 l\u1edbp 2. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_1_Tinh_toan\"><\/span>M\u1eabu 1: T\u00ednh to\u00e1n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p: Ch\u00fang t\u00f4i th\u1ef1c hi\u1ec7n vi\u1ec7c b\u1ed5 sung gi\u1eefa 8 v\u00e0 m\u1ed9t s\u1ed1 kh\u00e1c t\u01b0\u01a1ng t\u1ef1 nh\u01b0 b\u1ed5 sung th\u00f4ng th\u01b0\u1eddng.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: 8 + 2 = 10<\/em><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_2_Tim_dung_so\"><\/span>M\u1eabu 2: T\u00ecm \u0111\u00fang s\u1ed1<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p: \u0110\u1ec3 t\u00ecm ki\u1ebfm thu\u1eadt ng\u1eef b\u1ecb thi\u1ebfu khi c\u1ed9ng 8, ch\u00fang t\u00f4i th\u1ef1c hi\u1ec7n t\u00ednh to\u00e1n &#8220;8 Plus nhi\u1ec1u nh\u01b0 k\u1ebft qu\u1ea3 n\u00e0y&#8221;.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: Vi\u1ebft m\u1ed9t c\u00e1ch th\u00edch h\u1ee3p v\u00e0o d\u1ea5u ch\u1ea5m<\/em><\/p>\n<p dir=\"ltr\"><em>8 + &#8230;.. = 15 &#8230;.. + 8 = 13 16 = 8 + &#8230;..<\/em><\/p>\n<p dir=\"ltr\"><em>H\u01b0\u1edbng d\u1eabn gi\u1ea3i quy\u1ebft<\/em><\/p>\n<p dir=\"ltr\"><em>8 + 7 = 15 5 + 8 = 13 16 = 8 + 8<\/em><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_3_So_sanh\"><\/span>M\u1eabu 3: So s\u00e1nh<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p: Ch\u00fang t\u00f4i th\u1ef1c hi\u1ec7n t\u00e2m l\u00fd tinh th\u1ea7n \u0111\u1ec3 so s\u00e1nh, sau \u0111\u00f3 so s\u00e1nh k\u1ebft qu\u1ea3 v\u00e0 nh\u1eadp d\u1ea5u hi\u1ec7u th\u00edch h\u1ee3p.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: \u0111i\u1ec1n v\u00e0o d\u1ea5u (&gt;, &lt;, =) ph\u00f9 h\u1ee3p v\u1edbi d\u1ea5u ch\u1ea5m.<\/em><\/p>\n<p dir=\"ltr\"><em>a) 5 + 8 .. 8 + 7 b) 5 + 8 .. 8 + 5<\/em><\/p>\n<p dir=\"ltr\"><em>H\u01b0\u1edbng d\u1eabn gi\u1ea3i ph\u00e1p:<\/em><\/p>\n<p dir=\"ltr\"><em>a) 5 + 8 .. 8 + 7<\/em><\/p>\n<p dir=\"ltr\"><em>Ch\u00fang ta c\u00f3: 5 + 8 = 13 v\u00e0 8 + 7 = 15, suy lu\u1eadn 5 + 8 &lt;8 + 7<\/em><\/p>\n<p dir=\"ltr\"><em>b) 5 + 8.? 8 + 5<\/em><\/p>\n<p dir=\"ltr\"><em>Ch\u00fang ta c\u00f3: 5 + 8 = 13 v\u00e0 8 + 5 = 13 suy lu\u1eadn 5 + 8 = 8 + 5<\/em><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_4_Giai_toan_bang_cac_tu\"><\/span>M\u1eabu 4: Gi\u1ea3i to\u00e1n b\u1eb1ng c\u00e1c t\u1eeb<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p: Tr\u1ebb em c\u1ea7n \u0111\u1ecdc k\u1ef9 v\u1ea5n \u0111\u1ec1 m\u1ed9t c\u00e1ch c\u1ea9n th\u1eadn, ph\u00e2n t\u00edch d\u1eef li\u1ec7u \u0111\u00e3 cho, c\u00e1c y\u00eau c\u1ea7u c\u1ee7a v\u1ea5n \u0111\u1ec1 \u0111\u1ec3 ch\u00fang c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y c\u00e1c gi\u1ea3i ph\u00e1p, tr\u00ecnh b\u00e0y c\u00e1c gi\u1ea3i ph\u00e1p v\u00e0 c\u00e2u tr\u1ea3 l\u1eddi r\u00f5 r\u00e0ng.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: M\u1ed9t khu v\u01b0\u1eddn nh\u00e0 tr\u1ed3ng 8 c\u00e2y \u1ed5i, 5 c\u00e2y xo\u00e0i, 3 c\u00e2y m\u00edt. H\u1ecfi c\u00f3 bao nhi\u00eau c\u00e2y c\u00f3 m\u1ed9t khu v\u01b0\u1eddn m\u1ed9t khu v\u01b0\u1eddn?<\/em><\/p>\n<p dir=\"ltr\"><em>H\u01b0\u1edbng d\u1eabn gi\u1ea3i ph\u00e1p:<\/em><\/p>\n<p dir=\"ltr\"><em>M\u1ed9t khu v\u01b0\u1eddn nh\u00e0 c\u00f3 t\u1ed5ng s\u1ed1 c\u00e2y:<\/em><\/p>\n<p dir=\"ltr\"><em>8 + 3 + 5 = 16 (c\u00e2y)<\/em><\/p>\n<p dir=\"ltr\"><em>Tr\u1ea3 l\u1eddi: 16 c\u00e2y<\/em><\/p>\n<p dir=\"ltr\">\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mot_so_bi_mat_cua_toan_hoc_cap_2_8_cong_voi_mot_so_hieu_qua\"><\/span>M\u1ed9t s\u1ed1 b\u00ed m\u1eadt c\u1ee7a to\u00e1n h\u1ecdc c\u1ea5p 2 8 c\u1ed9ng v\u1edbi m\u1ed9t s\u1ed1 hi\u1ec7u qu\u1ea3<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">M\u1eb7c d\u00f9 h\u00ecnh th\u1ee9c to\u00e1n h\u1ecdc c\u1ed9ng v\u1edbi m\u1ed9t s\u1ed1 v\u1edbi 8 kh\u00f4ng qu\u00e1 kh\u00f3, nh\u01b0ng \u0111\u1ec3 gi\u00fap tr\u1ebb em hi\u1ec3u v\u00e0 chinh ph\u1ee5c c\u00e1c b\u00e0i t\u1eadp kh\u00f4ng sai, \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 m\u1eb9o h\u1ecdc t\u1eadp th\u00fa v\u1ecb.<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Toan_toan_hoc_voi_toan_hoc\"><\/span>To\u00e1n to\u00e1n h\u1ecdc v\u1edbi to\u00e1n h\u1ecdc<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Ngo\u00e0i gi\u1edd h\u1ecdc, v\u1ec1 nh\u00e0 n\u1ebfu em b\u00e9 c\u1ee7a b\u1ea1n v\u1eabn ch\u1ec9 h\u1ecdc to\u00e1n tr\u00ean s\u00e1ch, ch\u00fang th\u1ef1c s\u1ef1 s\u1ebd r\u1ea5t nh\u00e0m ch\u00e1n, c\u0169ng nh\u01b0 kh\u00f4ng quan t\u00e2m \u0111\u1ebfn vi\u1ec7c nghi\u00ean c\u1ee9u m\u00f4n h\u1ecdc n\u00e0y, d\u1eabn \u0111\u1ebfn hi\u1ec7u qu\u1ea3 h\u1ecdc t\u1eadp k\u00e9m.<\/p>\n<p dir=\"ltr\">Hi\u1ec3u \u0111i\u1ec1u n\u00e0y, Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef \u0111\u00e3 x\u00e2y d\u1ef1ng v\u00e0 ph\u00e1t tri\u1ec3n \u1ee9ng d\u1ee5ng to\u00e1n to\u00e1n Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math cho c\u00e1c m\u00f4n h\u1ecdc c\u1ee7a tr\u1ebb m\u1eabu gi\u00e1o v\u00e0 ti\u1ec3u h\u1ecdc, gi\u00fap ph\u1ee5 huynh gi\u1ea3m thi\u1ec3u lo l\u1eafng v\u1ec1 vi\u1ec7c d\u1ea1y to\u00e1n t\u1ea1i nh\u00e0 v\u1edbi chi ph\u00ed kinh t\u1ebf nh\u1ea5t.<\/p>\n<p dir=\"ltr\"><img loading=\"lazy\" decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/toan-lop-2-8-cong-voi-mot-so-02.jpg\" alt=\"Nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ec3 d\u1ea1y tr\u1ebb h\u1ecdc to\u00e1n ho\u1eb7c t\u1eeb to\u00e1n h\u1ecdc kh\u1ec9. (\u1ea2nh: Kh\u1ec9)\" width=\"800\" height=\"450\"><\/p>\n<p dir=\"ltr\">M\u1ed9t t\u00ednh n\u0103ng \u0111\u1eb7c bi\u1ec7t c\u1ee7a \u1ee9ng d\u1ee5ng n\u00e0y l\u00e0 h\u1ed7 tr\u1ee3 gi\u1ea3ng d\u1ea1y to\u00e1n h\u1ecdc th\u00f4ng qua nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c nhau. Bao g\u1ed3m:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">\u00c1p d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3ng d\u1ea1y t\u00edch c\u1ef1c: K\u00edch th\u00edch s\u1ef1 s\u00e1ng t\u1ea1o, tr\u1ebb em ch\u1ee7 \u0111\u1ed9ng \u0111\u1eb7t c\u00e2u h\u1ecfi \u0111\u1ec3 hi\u1ec3u g\u1ed1c r\u1ec5 c\u1ee7a v\u1ea5n \u0111\u1ec1 \u0111\u01b0\u1ee3c \u0111\u01b0a ra trong to\u00e1n h\u1ecdc.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">H\u1ecdc th\u00f4ng qua tr\u00f2 ch\u01a1i: Ch\u01a1i v\u00e0 h\u1ecdc t\u1eadp nh\u01b0ng hi\u1ec7u qu\u1ea3. T\u00f4i quan t\u00e2m, t\u1ef1 nguy\u1ec7n h\u1ecdc m\u00e0 kh\u00f4ng c\u00f3 l\u1eddi nh\u1eafc c\u1ee7a cha m\u1eb9.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Nghi\u00ean c\u1ee9u v\u1edbi c\u00e1c b\u00e0i t\u1eadp b\u1ed5 sung: Gi\u00fap con b\u1ea1n ph\u00e1t tri\u1ec3n c\u00e1c k\u1ef9 n\u0103ng v\u1eadn \u0111\u1ed9ng b\u00e1n v\u00e0 \u0111\u1ed9ng c\u01a1 th\u00f4 th\u00f4ng qua vi\u1ec7c gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 th\u1ef1c t\u1ebf.<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">\u0110\u1eb7c bi\u1ec7t, v\u1edbi h\u01a1n 400 b\u00e0i h\u1ecdc v\u1ec1 to\u00e1n h\u1ecdc kh\u1ec9 \u0111\u01b0\u1ee3c d\u1ea1y th\u00f4ng qua c\u00e1c h\u00ecnh \u1ea3nh h\u00e0i h\u01b0\u1edbc, video, v\u00ec v\u1eady n\u00f3 gi\u00fap tr\u1ebb d\u1ec5 d\u00e0ng h\u1ea5p th\u1ee5 v\u00e0 ghi nh\u1edb ki\u1ebfn \u200b\u200bth\u1ee9c t\u1ed1t h\u01a1n. C\u00f9ng v\u1edbi vi\u1ec7c g\u1eafn b\u00f3 v\u1edbi h\u01a1n 60 ch\u1ee7 \u0111\u1ec1 to\u00e1n h\u1ecdc, bao g\u1ed3m s\u1ed1 h\u1ecdc, h\u00ecnh h\u1ecdc, \u0111o l\u01b0\u1eddng, &#8230; \u0111\u01b0\u1ee3c chia th\u00e0nh 4 c\u1ea5p \u0111\u1ed9 t\u1eeb d\u1ec5 d\u00e0ng \u0111\u1ebfn kh\u00f3 gi\u00fap cha m\u1eb9 d\u1ec5 d\u00e0ng ch\u1ecdn m\u1ee9c \u0111\u1ed9 ph\u00f9 h\u1ee3p nh\u1ea5t cho tr\u1ebb em.<\/p>\n<p dir=\"ltr\">Ch\u01b0a k\u1ec3, ngo\u00e0i vi\u1ec7c h\u1ed7 tr\u1ee3 to\u00e1n h\u1ecdc, Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math c\u0169ng g\u00f3p ph\u1ea7n gi\u00fap tr\u1ebb h\u1ecdc ngo\u1ea1i ng\u1eef m\u1ed9t c\u00e1ch t\u1ef1 nhi\u00ean th\u00f4ng qua c\u00e1c b\u00e0i h\u1ecdc. \u0110\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi kh\u00f4ng bi\u1ebft ti\u1ebfng Anh, th\u00f4ng qua c\u00e1c minh h\u1ecda r\u00f5 r\u00e0ng RAFG \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o h\u1ecd s\u1ebd h\u1ecdc to\u00e1n v\u00e0 h\u1ecdc ngo\u1ea1i ng\u1eef d\u1ec5 d\u00e0ng v\u1edbi chi ph\u00ed d\u01b0\u1edbi 2000 VND\/ng\u00e0y.<\/p>\n<p dir=\"ltr\">N\u1ebfu ph\u1ee5 huynh kh\u00f4ng c\u00f3 nhi\u1ec1u th\u1eddi gian, kinh nghi\u1ec7m ho\u1eb7c chi ph\u00ed h\u1ed7 tr\u1ee3 d\u1ea1y tr\u1ebb h\u1ecdc to\u00e1n th\u00eam th\u1eddi gian trong th\u1eddi gian h\u1ecdc, Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 tuy\u1ec7t v\u1eddi \u0111\u1ec3 b\u1ea1n tham kh\u1ea3o.<\/p>\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\/taimienphiMM.png\" alt=\"\" width=\"185\" height=\"37\"><\/p>\n<p 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=\"Su_dung_cac_meo_de_tinh_toan_tinh_than_8_cong_voi_so_luong_nhanh_chong\"><\/span>S\u1eed d\u1ee5ng c\u00e1c m\u1eb9o \u0111\u1ec3 t\u00ednh to\u00e1n tinh th\u1ea7n 8 c\u1ed9ng v\u1edbi s\u1ed1 l\u01b0\u1ee3ng nhanh ch\u00f3ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ed1i v\u1edbi t\u00ednh to\u00e1n to\u00e1n l\u1edbp 2, n\u00f3 th\u01b0\u1eddng kh\u00e1 \u0111\u01a1n gi\u1ea3n gi\u1eefa m\u1ed9t s\u1ed1 1 -\u0111\u1ecbnh ngh\u0129a ho\u1eb7c s\u1ed1 2 -digit c\u1ed9ng v\u1edbi. V\u00ec v\u1eady, cha m\u1eb9 c\u00f3 th\u1ec3 h\u1ecdc c\u00e1c ph\u01b0\u01a1ng ph\u00e1p t\u00ednh to\u00e1n nhanh \u0111\u1ec3 d\u1ea1y tr\u1ebb, gi\u00fap t\u00ednh to\u00e1n c\u1ee7a ch\u00fang nhanh ch\u00f3ng v\u00e0 ch\u00ednh x\u00e1c h\u01a1n. Ch\u1eb3ng h\u1ea1n nh\u01b0:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">S\u1eed d\u1ee5ng ng\u00f3n tay c\u1ee7a b\u1ea1n \u0111\u1ec3 th\u1ef1c hi\u1ec7n b\u1ed5 sung<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">\u00c1p d\u1ee5ng omnidoma -bello -b = b + a t\u00ednh to\u00e1n \u0111\u1ec3 t\u00ednh to\u00e1n nhanh h\u01a1n<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Khi gi\u1ea3i to\u00e1n to\u00e1n so s\u00e1nh, ch\u00fang ta ch\u1ec9 c\u1ea7n so s\u00e1nh s\u1ed1 c\u1ed9ng v\u1edbi s\u1ed1 8 \u1edf hai b\u00ean \u0111\u1ec3 \u0111i\u1ec1n v\u00e0o d\u1ea5u t\u01b0\u01a1ng \u1ee9ng. V\u00ed d\u1ee5: 8 + 3 v\u1edbi 5 + 8, ch\u00fang ta s\u1ebd gi\u1eef 8 v\u00e0 so s\u00e1nh gi\u1eefa 3 v\u00e0 5 ch\u00fang ta th\u1ea5y 3 &lt;5, suy lu\u1eadn 8 + 3 &lt;5 + 8.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Th\u1ef1c hi\u1ec7n ph\u00e2n t\u00e1ch, k\u1ebft h\u1ee3p c\u00e1c s\u1ed1 c\u1ed9ng v\u1edbi s\u1ed1 8 v\u00e0 sau \u0111\u00f3 bi\u1ebfn ch\u00fang th\u00e0nh h\u00e0ng t\u00e1 v\u00e0 sau \u0111\u00f3 th\u1ef1c hi\u1ec7n c\u1ed9ng v\u1edbi tinh th\u1ea7n. V\u00ed d\u1ee5: 8 + 15 = 8 + 13 + 2 = 10 + 13 = 23<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">\u2026.<\/p>\n<\/li>\n<\/ul>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Hoc_tap_va_thuc_hanh_de_cai_thien_cac_ky_nang_tinh_toan_tinh_than_cong_voi_so_luong_nhanh_chong\"><\/span>H\u1ecdc t\u1eadp v\u00e0 th\u1ef1c h\u00e0nh \u0111\u1ec3 c\u1ea3i thi\u1ec7n c\u00e1c k\u1ef9 n\u0103ng t\u00ednh to\u00e1n tinh th\u1ea7n c\u1ed9ng v\u1edbi s\u1ed1 l\u01b0\u1ee3ng nhanh ch\u00f3ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ed1i v\u1edbi tr\u1ebb em l\u1edbp 2 kh\u00e1 nh\u1ecf. Do \u0111\u00f3, n\u1ebfu b\u1ea1n ch\u1ec9 h\u1ecdc l\u00fd thuy\u1ebft, b\u1ea1n r\u1ea5t d\u1ec5 qu\u00ean. Do \u0111\u00f3, ph\u1ee5 huynh c\u1ea7n h\u01b0\u1edbng d\u1eabn, khuy\u1ebfn kh\u00edch v\u00e0 \u0111\u1ed3ng h\u00e0nh c\u00f9ng con c\u00e1i h\u1ecd h\u1ecdc t\u1eadp v\u00e0 th\u1ef1c h\u00e0nh nh\u01b0: l\u00e0m b\u00e0i t\u1eadp v\u1ec1 nh\u00e0 trong s\u00e1ch gi\u00e1o khoa, h\u1ecdc th\u00eam ki\u1ebfn \u200b\u200bth\u1ee9c tr\u00ean internet, h\u1ecdc to\u00e1n th\u00f4ng qua c\u00e1c tr\u00f2 ch\u01a1i, \u1ee9ng d\u1ee5ng \u0111\u1ec3 gi\u1ea3i quy\u1ebft to\u00e1n h\u1ecdc trong th\u1ef1c t\u1ebf, &#8230;<\/p>\n<p dir=\"ltr\">Th\u00f4ng qua vi\u1ec7c h\u1ecdc t\u1eadp v\u00e0 th\u1ef1c h\u00e0nh th\u01b0\u1eddng xuy\u00ean s\u1ebd gi\u00fap t\u0103ng kh\u1ea3 n\u0103ng c\u00f3 \u0111\u01b0\u1ee3c, h\u00e3y nh\u1edb, c\u0169ng nh\u01b0 k\u00edch th\u00edch suy ngh\u0129 khi tr\u1ebb h\u1ecdc to\u00e1n hi\u1ec7u qu\u1ea3 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-2-8-cong-voi-mot-so-3.jpg\" alt=\"Ph\u1ee5 huynh v\u00e0 tr\u1ebb em h\u1ecdc v\u00e0 gi\u1ea3i to\u00e1n l\u1edbp 2 nhi\u1ec1u h\u01a1n. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_tap_toan_cap_2_8_cong_voi_mot_so_cho_tre_em_thuc_hanh\"><\/span>B\u00e0i t\u1eadp to\u00e1n c\u1ea5p 2 8 c\u1ed9ng v\u1edbi m\u1ed9t s\u1ed1 cho tr\u1ebb em th\u1ef1c h\u00e0nh<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 t\u00ednh to\u00e1n b\u1ed5 sung v\u1edbi 8 cho tr\u1ebb em \u0111\u1ec3 th\u1ef1c h\u00e0nh h\u01a1n n\u1eefa:<\/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-2-8-cong-voi-mot-so-4.jpg\" alt=\"(Ngu\u1ed3n: T\u00f3m t\u1eaft)\" 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\u1ea3i ph\u00e1p n\u00e0y gi\u00fap tr\u1ebb ph\u00e1t tri\u1ec3n t\u01b0 duy v\u00e0 ng\u00f4n ng\u1eef to\u00e0n di\u1ec7n v\u1edbi c\u00e1c s\u1ea3n ph\u1ea9m to\u00e1n h\u1ecdc + Vi\u1ec7t Nam + ti\u1ebfng Anh v\u1edbi gi\u1ea3m gi\u00e1 t\u1edbi 50% ng\u00e0y h\u00f4m nay.<\/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=\"185\" height=\"38\"><\/p>\n<\/td>\n<\/tr>\n<\/table>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mot_so_ghi_chu_Khi_cha_me_day_con_hoc_8_cong_voi_mot_so_toan_hoc_lop_2\"><\/span>M\u1ed9t s\u1ed1 ghi ch\u00fa Khi cha m\u1eb9 d\u1ea1y con h\u1ecdc 8 c\u1ed9ng v\u1edbi m\u1ed9t s\u1ed1 to\u00e1n h\u1ecdc l\u1edbp 2<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">\u0110\u1ec3 gi\u00fap tr\u1ebb c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 to\u00e1n h\u1ecdc khi cha m\u1eb9 d\u1ea1y \u1edf nh\u00e0, \u0111i\u1ec1u quan tr\u1ecdng c\u1ea7n l\u01b0u \u00fd l\u00e0 c\u00e1c v\u1ea5n \u0111\u1ec1 sau:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">\u0110i c\u00f9ng v\u1edbi em b\u00e9 c\u1ee7a b\u1ea1n: Thay v\u00ec \u0111\u1ec3 tr\u1ebb h\u1ecdc m\u1ed9t m\u00ecnh, cha m\u1eb9 n\u00ean d\u00e0nh m\u1ed9t ch\u00fat th\u1eddi gian \u0111\u1ec3 \u0111i c\u00f9ng, t\u01b0 v\u1ea5n, chia s\u1ebb, tr\u1ea3 l\u1eddi c\u00e1c v\u1ea5n \u0111\u1ec1 kh\u00f3 kh\u0103n v\u1edbi con c\u00e1i, c\u0169ng nh\u01b0 c\u1ee7ng c\u1ed1 ki\u1ebfn \u200b\u200bth\u1ee9c m\u00e0 ch\u00fang qu\u00ean g\u1eb7p v\u1ea5n \u0111\u1ec1 hi\u1ec7u qu\u1ea3.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">D\u1ea1y tr\u1ebb h\u1ecdc ch\u1eadm nh\u01b0ng ch\u1eafc ch\u1eafn: Thay v\u00ec m\u1ed7i ph\u1ea7n c\u1ee7a ki\u1ebfn \u200b\u200bth\u1ee9c \u0111\u1ec3 gi\u1edbi thi\u1ec7u ng\u01b0\u1eddi n\u00f3i, cha m\u1eb9 n\u00ean d\u1ea1y ch\u00fang ch\u1eadm, kh\u00f4ng n\u00ean v\u1ed9i v\u00e0ng, d\u1ea1y ch\u1eafc ch\u1eafn d\u01b0\u1edbi m\u1ed9t h\u00ecnh th\u1ee9c cho \u0111\u1ebfn khi ch\u00fang hi\u1ec3u v\u00e0 ti\u1ebfp thu ch\u00fang m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">K\u1ebft h\u1ee3p m\u1ed9t lo\u1ea1t c\u00e1c ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3ng d\u1ea1y: Thay v\u00ec ch\u1ec9 giao b\u00e0i t\u1eadp v\u00e0 y\u00eau c\u1ea7u tr\u1ebb l\u00e0m, ph\u1ee5 huynh n\u00ean k\u1ebft h\u1ee3p nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c nhau nh\u01b0 h\u1ecdc th\u00f4ng qua tr\u00f2 ch\u01a1i, h\u1ecdc nh\u00f3m, \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf, h\u1ecdc v\u1edbi \u1ee9ng d\u1ee5ng to\u00e1n h\u1ecdc kh\u1ec9 &#8230; \u0111\u1ec3 t\u0103ng hi\u1ec7u qu\u1ea3 h\u1ecdc t\u1eadp c\u1ee7a tr\u1ebb.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Th\u01b0\u1eddng xuy\u00ean ki\u1ec3m tra s\u00e1ch v\u00e0 b\u00e0i t\u1eadp c\u1ee7a b\u00e9: N\u00f3 s\u1ebd gi\u00fap ph\u1ee5 huynh n\u1eafm b\u1eaft kh\u1ea3 n\u0103ng h\u1ecdc t\u1eadp c\u1ee7a b\u00e9, t\u1eeb \u0111\u00f3 cung c\u1ea5p c\u00e1c ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3ng d\u1ea1y v\u00e0 c\u1ee7ng c\u1ed1 ki\u1ebfn \u200b\u200bth\u1ee9c cho tr\u1ebb em k\u1ecbp th\u1eddi.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Kh\u00f4ng g\u00e2y \u00e1p l\u1ef1c cho tr\u1ebb em: Thay v\u00ec bu\u1ed9c tr\u1ebb ph\u1ea3i h\u1ecdc qu\u00e1 nhi\u1ec1u, g\u00e2y \u00e1p l\u1ef1c l\u00ean em b\u00e9 \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c \u0111i\u1ec3m cao, cha m\u1eb9 n\u00ean gi\u00fap con c\u00e1i c\u1ee7a h\u1ecd l\u00e0m ch\u1ee7 ki\u1ebfn \u200b\u200bth\u1ee9c, \u0111\u1ec3 ch\u00fang c\u00f3 th\u1ec3 h\u1ecdc tho\u1ea3i m\u00e1i \u0111\u1ec3 tr\u00e1nh \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00e2m l\u00fd c\u1ee7a tr\u1ebb em.<\/p>\n<\/li>\n<\/ul>\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 dir=\"ltr\" style=\"line-height: 1.7999999999999998;text-align: justify;margin-top: 12pt;margin-bottom: 12pt\">Tr\u00ean \u0111\u00e2y l\u00e0 ki\u1ebfn \u200b\u200bth\u1ee9c chia s\u1ebb v\u1ec1 to\u00e1n h\u1ecdc c\u1ea5p 2 8 c\u1ed9ng v\u1edbi m\u1ed9t s\u1ed1. Hy v\u1ecdng, d\u1ef1a tr\u00ean vi\u1ec7c chia s\u1ebb \u1edf tr\u00ean, ph\u1ee5 huynh c\u00f3 th\u1ec3 chinh ph\u1ee5c lo\u1ea1i b\u00e0i t\u1eadp n\u00e0y v\u1edbi h\u1ecd, c\u0169ng nh\u01b0 c\u00e1c k\u1ef9 n\u0103ng t\u00ednh to\u00e1n 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>To\u00e1n h\u1ecdc c\u1ea5p 2 c\u1ed9ng v\u1edbi m\u1ed9t s\u1ed1 l\u00e0 m\u1ed9t trong nh\u1eefng lo\u1ea1i b\u00e0i t\u1eadp tr\u00f4ng \u0111\u01a1n gi\u1ea3n, nh\u01b0ng nhi\u1ec1u tr\u1ebb em khi gi\u1ea3i to\u00e1n l\u00e0 kh\u00e1 x\u1ea5u h\u1ed5 v\u00e0 k\u1ebft qu\u1ea3 sai. V\u00ec v\u1eady, \u0111\u1ec3 gi\u00fap con b\u1ea1n chinh ph\u1ee5c h\u00ecnh th\u1ee9c to\u00e1n h\u1ecdc n\u00e0y m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3, h\u00e3y th\u1eed em b\u00e9 \u0111\u1ec3&#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-15526","post","type-post","status-publish","format-standard","hentry","category-kien-thuc"],"_links":{"self":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/15526","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=15526"}],"version-history":[{"count":2,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/15526\/revisions"}],"predecessor-version":[{"id":22302,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/15526\/revisions\/22302"}],"wp:attachment":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/media?parent=15526"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/categories?post=15526"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/tags?post=15526"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}