{"id":17414,"date":"2025-07-05T02:05:06","date_gmt":"2025-07-04T19:05:06","guid":{"rendered":"https:\/\/www.ckconitsha.com\/vn\/?p=17414"},"modified":"2025-07-06T07:36:34","modified_gmt":"2025-07-06T00:36:34","slug":"kien-thuc-co-ban-ve-tinh-chat-giao-hoan-cua-phep-cong-chi-tiet-nhat","status":"publish","type":"post","link":"https:\/\/www.ckconitsha.com\/vn\/kien-thuc-co-ban-ve-tinh-chat-giao-hoan-cua-phep-cong-chi-tiet-nhat\/","title":{"rendered":"Ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n v\u1ec1 t\u00ednh ch\u1ea5t giao ho\u00e1n c\u1ee7a ph\u00e9p c\u1ed9ng chi ti\u1ebft nh\u1ea5t"},"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\/kien-thuc-co-ban-ve-tinh-chat-giao-hoan-cua-phep-cong-chi-tiet-nhat\/#Cac_thuoc_tinh_giao_hoan_cua_bo_sung_la_gi\" >C\u00e1c thu\u1ed9c t\u00ednh giao ho\u00e1n c\u1ee7a b\u1ed5 sung l\u00e0 g\u00ec?<\/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\/kien-thuc-co-ban-ve-tinh-chat-giao-hoan-cua-phep-cong-chi-tiet-nhat\/#Cac_dinh_dang_toan_hoc_cua_cac_thuoc_tinh_giao_hoan_cua_bo_sung_pho_bien\" >C\u00e1c \u0111\u1ecbnh d\u1ea1ng to\u00e1n h\u1ecdc c\u1ee7a c\u00e1c thu\u1ed9c t\u00ednh giao ho\u00e1n c\u1ee7a b\u1ed5 sung 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\/kien-thuc-co-ban-ve-tinh-chat-giao-hoan-cua-phep-cong-chi-tiet-nhat\/#Mau_1_Cong_thuc_dinh_nghia\" >M\u1eabu 1: C\u00f4ng th\u1ee9c \u0111\u1ecbnh ngh\u0129a<\/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\/kien-thuc-co-ban-ve-tinh-chat-giao-hoan-cua-phep-cong-chi-tiet-nhat\/#Mau_2_Nhap_so_con_thieu_vao_cho_trong\" >M\u1eabu 2: Nh\u1eadp s\u1ed1 c\u00f2n thi\u1ebfu v\u00e0o ch\u1ed7 tr\u1ed1ng<\/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\/kien-thuc-co-ban-ve-tinh-chat-giao-hoan-cua-phep-cong-chi-tiet-nhat\/#Mau_3_So_sanh_tinh_toan\" >M\u1eabu 3: So s\u00e1nh 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-6\" href=\"https:\/\/www.ckconitsha.com\/vn\/kien-thuc-co-ban-ve-tinh-chat-giao-hoan-cua-phep-cong-chi-tiet-nhat\/#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\/kien-thuc-co-ban-ve-tinh-chat-giao-hoan-cua-phep-cong-chi-tiet-nhat\/#Bi_quyet_hoc_tap_va_ghi_nho_su_bat_thuong_cua_chung\" >B\u00ed quy\u1ebft h\u1ecdc t\u1eadp v\u00e0 ghi nh\u1edb s\u1ef1 b\u1ea5t th\u01b0\u1eddng c\u1ee7a chung<\/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\/kien-thuc-co-ban-ve-tinh-chat-giao-hoan-cua-phep-cong-chi-tiet-nhat\/#Xay_dung_mot_nen_tang_toan_hoc_vung_chac_cho_tre_em_voi_toan_hoc_khi\" >X\u00e2y d\u1ef1ng m\u1ed9t n\u1ec1n t\u1ea3ng to\u00e1n h\u1ecdc v\u1eefng ch\u1eafc 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\/kien-thuc-co-ban-ve-tinh-chat-giao-hoan-cua-phep-cong-chi-tiet-nhat\/#Tim_hieu_cac_thuoc_tinh_giao_hoan_bo_sung_dua_tren_vi_du_ve_thuc_hanh\" >T\u00ecm hi\u1ec3u c\u00e1c thu\u1ed9c t\u00ednh giao ho\u00e1n b\u1ed5 sung d\u1ef1a tr\u00ean v\u00ed d\u1ee5 v\u1ec1 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\/kien-thuc-co-ban-ve-tinh-chat-giao-hoan-cua-phep-cong-chi-tiet-nhat\/#Voi_em_be_cua_ban_de_luyen_tap_thuc_hanh_nhieu_hon\" >V\u1edbi em b\u00e9 c\u1ee7a b\u1ea1n \u0111\u1ec3 luy\u1ec7n t\u1eadp, th\u1ef1c h\u00e0nh nhi\u1ec1u h\u01a1n<\/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\/kien-thuc-co-ban-ve-tinh-chat-giao-hoan-cua-phep-cong-chi-tiet-nhat\/#Mot_so_bai_tap_ve_tinh_toan_ma_thuat_pho_bien_cho_tre_so_sinh_thuc_hanh\" >M\u1ed9t s\u1ed1 b\u00e0i t\u1eadp v\u1ec1 t\u00ednh to\u00e1n ma thu\u1eadt ph\u1ed5 bi\u1ebfn cho tr\u1ebb s\u01a1 sinh 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\/kien-thuc-co-ban-ve-tinh-chat-giao-hoan-cua-phep-cong-chi-tiet-nhat\/#Ket_luan\" >K\u1ebft lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n<\/p>\n<p>C\u00e1c t\u00ednh ch\u1ea5t giao ho\u00e1n c\u1ee7a b\u1ed5 sung \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 m\u1ed9t b\u1ea3n ch\u1ea5t c\u1ef1c k\u1ef3 \u0111\u1eb7c tr\u01b0ng \u0111\u1ec3 l\u00e0m cho t\u00ednh to\u00e1n ch\u00ednh x\u00e1c v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n. V\u00ec v\u1eady, \u0111\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 c\u00e1c c\u00e1ch th\u00f4ng th\u01b0\u1eddng v\u00e0 hi\u1ec7u qu\u1ea3, kh\u00f4ng b\u1ecf qua nh\u1eefng b\u00e0i vi\u1ebft sau \u0111\u00e2y, kh\u1ec9 s\u1ebd chia s\u1ebb th\u00eam chi ti\u1ebft.<\/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 h\u01a1n 2.000 t\u1eeb &amp; 6.000 c\u00e2u ti\u1ebfng Anh \u0111\u1ec3 ph\u00e1t tri\u1ec3n to\u00e0n di\u1ec7n 4 k\u1ef9 n\u0103ng ti\u1ebfng Anh t\u1ed1t &#8211; ti\u1ebfng Anh theo c\u00e1c ph\u01b0\u01a1ng ph\u00e1p hi\u1ec7n \u0111\u1ea1i ph\u00e1t tri\u1ec3n kh\u1ea3 n\u0103ng EQ &amp; Vi\u1ec7t Nam *B\u1ea1n ch\u01b0a ch\u1ecdn b\u1ea5t k\u1ef3 m\u1ee5c n\u00e0o! \u0110\u0103ng k\u00fd t\u01b0 v\u1ea5n mi\u1ec5n ph\u00ed<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cac_thuoc_tinh_giao_hoan_cua_bo_sung_la_gi\"><\/span>C\u00e1c thu\u1ed9c t\u00ednh giao ho\u00e1n c\u1ee7a b\u1ed5 sung l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">L\u00e0 b\u00e0i vi\u1ebft tr\u01b0\u1edbc, ch\u00fang t\u00f4i \u0111\u00e3 h\u1ecdc \u0111\u01b0\u1ee3c b\u1ea3n ch\u1ea5t giao ho\u00e1n l\u00e0 g\u00ec, \u0111\u00e2y l\u00e0 m\u1ed9t t\u00e0i s\u1ea3n \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng v\u00e0 nh\u00e2n.<\/p>\n<p dir=\"ltr\">C\u1ee5 th\u1ec3, t\u00ednh t\u01b0\u01a1ng t\u00e1c c\u1ee7a vi\u1ec7c b\u1ed5 sung \u0111\u01b0\u1ee3c hi\u1ec3u r\u1eb1ng khi thay \u0111\u1ed5i v\u1ecb tr\u00ed c\u1ee7a c\u00e1c \u0111i\u1ec1u kho\u1ea3n trong m\u1ed9t t\u1ed5ng, k\u1ebft qu\u1ea3 c\u1ee7a ch\u00fang kh\u00f4ng thay \u0111\u1ed5i.<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">A + b = b + a<\/p>\n<p dir=\"ltr\">Ngo\u00e0i ra, trong m\u1ed9t t\u00ednh to\u00e1n c\u1ed9ng v\u1edbi giao ho\u00e1n, cho ph\u00e9p ch\u00fang t\u00f4i th\u1ef1c hi\u1ec7n c\u00e1c t\u00ednh to\u00e1n theo b\u1ea5t k\u1ef3 th\u1ee9 t\u1ef1 n\u00e0o. V\u00ec v\u1eady, khi c\u1ed9ng v\u1edbi nhi\u1ec1u \u0111i\u1ec1u kho\u1ea3n, ch\u00fang ta c\u00f3 th\u1ec3 l\u00e0m s\u1ed1 n\u00e0o tr\u01b0\u1edbc, lo\u1ea1i n\u00e0o sau \u0111\u00e2y v\u00e0 k\u1ebft qu\u1ea3 l\u00e0 nh\u01b0 nhau.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: <\/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\/tinh-chat-giao-hoan-cua-phep-cong-1.png\" alt=\"T\u00ednh to\u00e1n c\u1ed9ng l\u00e0 c\u00e1c thu\u1ed9c t\u00ednh giao ho\u00e1n. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cac_dinh_dang_toan_hoc_cua_cac_thuoc_tinh_giao_hoan_cua_bo_sung_pho_bien\"><\/span>C\u00e1c \u0111\u1ecbnh d\u1ea1ng to\u00e1n h\u1ecdc c\u1ee7a c\u00e1c thu\u1ed9c t\u00ednh giao ho\u00e1n c\u1ee7a b\u1ed5 sung ph\u1ed5 bi\u1ebfn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">\u0110\u1ed1i v\u1edbi vi\u1ec7c \u0111i l\u1ea1i b\u1ed5 sung, h\u1ecd th\u01b0\u1eddng s\u1ebd l\u00e0m quen v\u00e0 gi\u1ea3i quy\u1ebft c\u00e1c lo\u1ea1i b\u00e0i t\u1eadp 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\/tinh-chat-giao-hoan-cua-phep-cong-2.jpg\" alt=\"C\u00f3 nhi\u1ec1u lo\u1ea1i b\u00e0i t\u1eadp v\u1ec1 vi\u1ec7c \u0111i l\u1ea1i b\u1ed5 sung. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_1_Cong_thuc_dinh_nghia\"><\/span>M\u1eabu 1: C\u00f4ng th\u1ee9c \u0111\u1ecbnh ngh\u0129a<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3i ph\u00e1p: H\u1ecd ph\u1ea3i hi\u1ec3u ki\u1ebfn \u200b\u200bth\u1ee9c l\u00fd thuy\u1ebft v\u1ec1 giao ho\u00e1n A + B = B + A \u0111\u1ec3 h\u1ecd c\u00f3 th\u1ec3 ch\u1ecdn c\u00e2u tr\u1ea3 l\u1eddi \u0111\u00fang theo v\u1ea5n \u0111\u1ec1.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: n\u00f3i &#8220;32 + 45 + 16 = 16 + 32 + 45&#8221; l\u00e0 \u0111\u00fang ho\u1eb7c sai.<\/em><\/p>\n<p dir=\"ltr\"><em>Gi\u1ea3i quy\u1ebft: D\u1ef1a tr\u00ean l\u00fd thuy\u1ebft v\u1ec1 c\u00e1c thu\u1ed9c t\u00ednh giao ho\u00e1n, khi thay \u0111\u1ed5i c\u00e1c \u0111i\u1ec1u kho\u1ea3n c\u1ee7a t\u1ed5ng h\u1ea1n, t\u1ed5ng k\u1ebft qu\u1ea3 kh\u00f4ng thay \u0111\u1ed5i. V\u00ec v\u1eady, 32 + 45 + 16 = 16 + 32 + 45 l\u00e0 \u0111\u00fang, b\u1eb1ng 93.<\/em><\/p>\n<p dir=\"ltr\"><em>=&gt; Bao l\u00e0 \u0111\u00fang.<\/em><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_2_Nhap_so_con_thieu_vao_cho_trong\"><\/span>M\u1eabu 2: Nh\u1eadp s\u1ed1 c\u00f2n thi\u1ebfu v\u00e0o ch\u1ed7 tr\u1ed1ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p: \u00c1p d\u1ee5ng c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a nh\u00e0 th\u1edd trong vi\u1ec7c b\u1ed5 sung \u0111\u1ec3 c\u00f3 th\u1ec3 suy \u0111o\u00e1n ch\u00ednh x\u00e1c s\u1ed1 c\u00f2n thi\u1ebfu trong d\u1ea5u ch\u1ea5m.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: 29 + 15 + 38 = 15 + &#8230; + 29<\/em><\/p>\n<p dir=\"ltr\"><em>Gi\u1ea3i ph\u00e1p: Ngo\u00e0i c\u00e1c thu\u1ed9c t\u00ednh giao ho\u00e1n, ch\u00fang t\u00f4i nh\u1eadn \u0111\u01b0\u1ee3c 29 + 15 + 38 = 15 + 38 + 29<\/em><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_3_So_sanh_tinh_toan\"><\/span>M\u1eabu 3: So s\u00e1nh t\u00ednh to\u00e1n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p: \u00c1p d\u1ee5ng c\u00e1c thu\u1ed9c t\u00ednh giao ho\u00e1n c\u1ee7a vi\u1ec7c b\u1ed5 sung \u0111\u1ec3 so s\u00e1nh nhanh ch\u00f3ng m\u00e0 kh\u00f4ng t\u00ednh to\u00e1n k\u1ebft qu\u1ea3.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: Nh\u1eadp con d\u1ea5u&gt;, &lt;, = trong d\u1ea5u ch\u1ea5m<\/em><\/p>\n<p dir=\"ltr\"><em>M\u1ed9t. 42 + 15 + 38 &#8230; 38 + 15 + 42<\/em><\/p>\n<p dir=\"ltr\"><em>b. 23 + 73 + 12 &#8230; 32 + 12 + 73<\/em><\/p>\n<p dir=\"ltr\"><em>Ph\u1ea7n th\u01b0\u1edfng:<\/em><\/p>\n<p dir=\"ltr\"><em>M\u1ed9t. 42 + 15 + 38 = 38 + 15 + 42<\/em><\/p>\n<p dir=\"ltr\"><em>b. 23 + 73 + 12 &lt;32 + 12 + 73<\/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: Ch\u00fang t\u00f4i ph\u1ea3i \u0111\u1ecdc k\u1ef9 ch\u1ee7 \u0111\u1ec1 \u0111\u00e3 cho, \u0111\u1ec3 bi\u1ebft nh\u1eefng s\u1ef1 th\u1eadt, nh\u1eefng g\u00ec y\u00eau c\u1ea7u. Sau \u0111\u00f3 \u00e1p d\u1ee5ng cho c\u00e1c thu\u1ed9c t\u00ednh giao ho\u00e1n c\u1ee7a t\u1ed5ng \u0111\u1ec3 t\u00ecm c\u00e2u tr\u1ea3 l\u1eddi \u0111\u00fang.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5, Bao c\u00f3 t\u1ed5ng c\u1ed9ng 15 qu\u1ea3 b\u00f3ng m\u00e0u xanh v\u00e0 10 vi\u00ean bi \u0111\u1ecf, c\u0169ng c\u00f3 10 qu\u1ea3 b\u00f3ng m\u00e0u xanh v\u1edbi 15 qu\u1ea3 b\u00f3ng \u0111\u1ecf. H\u1ecfi ai c\u00f3 nhi\u1ec1u vi\u00ean bi h\u01a1n?<\/em><\/p>\n<p dir=\"ltr\"><em>Gi\u1ea3i th\u01b0\u1edfng: Bao v\u00e0 c\u1ea3 hai c\u00f3 s\u1ed1 l\u01b0\u1ee3ng b\u00f3ng b\u1eb1ng nhau, v\u00ec 15 + 10 = 10 + 15 = 25 qu\u1ea3 b\u00f3ng.<\/em><\/p>\n<p dir=\"ltr\"><em><\/em><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bi_quyet_hoc_tap_va_ghi_nho_su_bat_thuong_cua_chung\"><\/span>B\u00ed quy\u1ebft h\u1ecdc t\u1eadp v\u00e0 ghi nh\u1edb s\u1ef1 b\u1ea5t th\u01b0\u1eddng c\u1ee7a chung<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">V\u1ec1 c\u01a1 b\u1ea3n, t\u00ednh t\u01b0\u01a1ng t\u00e1c c\u1ee7a vi\u1ec7c b\u1ed5 sung kh\u00f4ng qu\u00e1 kh\u00f3 hi\u1ec3u, nh\u01b0ng \u0111\u00f3 l\u00e0 ti\u1ec1n \u0111\u1ec3 tr\u1ebb t\u00ecm hi\u1ec3u th\u00eam v\u1ec1 ki\u1ebfn \u200b\u200bth\u1ee9c cao h\u01a1n v\u1ec1 t\u00ednh to\u00e1n n\u00e0y. Do \u0111\u00f3, \u0111\u1ec3 gi\u00fap tr\u1ebb h\u1ecdc to\u00e1n t\u1ed1t h\u01a1n v\u00e0 c\u00f3 ni\u1ec1m \u0111am m\u00ea v\u1edbi m\u00f4n h\u1ecdc n\u00e0y, cha m\u1eb9 c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng c\u00e1c b\u00ed m\u1eadt sau:<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Xay_dung_mot_nen_tang_toan_hoc_vung_chac_cho_tre_em_voi_toan_hoc_khi\"><\/span>X\u00e2y d\u1ef1ng m\u1ed9t n\u1ec1n t\u1ea3ng to\u00e1n h\u1ecdc v\u1eefng ch\u1eafc cho tr\u1ebb em v\u1edbi to\u00e1n h\u1ecdc kh\u1ec9<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">To\u00e1n h\u1ecdc l\u00e0 m\u1ed9t m\u00f4n h\u1ecdc kh\u00e1 kh\u00f4 khan, nh\u01b0ng n\u00f3 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a t\u01b0 duy n\u00e3o v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf. Do \u0111\u00f3, n\u1ebfu ph\u1ee5 huynh c\u1ea7n c\u00f3 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3ng d\u1ea1y ph\u00f9 h\u1ee3p \u0111\u1ec3 tr\u1ebb em quan t\u00e2m \u0111\u1ebfn t\u1eebng l\u1edbp to\u00e1n h\u1ecdc t\u1ea1i nh\u00e0, c\u0169ng nh\u01b0 khi h\u1ecdc l\u1edbp, ch\u00fang gi\u00fap con c\u00e1i ti\u1ebfp thu v\u00e0 y\u00eau th\u00edch m\u00f4n h\u1ecdc n\u00e0y.<\/p>\n<p dir=\"ltr\">Tuy nhi\u00ean, nhi\u1ec1u ph\u1ee5 huynh b\u00e2y gi\u1edd kh\u00e1 b\u1eadn r\u1ed9n m\u00e0 kh\u00f4ng c\u00f3 nhi\u1ec1u th\u1eddi gian \u0111\u1ec3 h\u1ed7 tr\u1ee3 tr\u1ebb em h\u1ecdc t\u1eadp, c\u0169ng nh\u01b0 kh\u00f4ng c\u00f3 nhi\u1ec1u k\u1ef9 n\u0103ng s\u01b0 ph\u1ea1m. Do \u0111\u00f3, b\u1ea1n c\u00f3 th\u1ec3 ngay l\u1eadp t\u1ee9c \u0111\u1ec1 c\u1eadp \u0111\u1ebfn vi\u1ec7c \u00e1p d\u1ee5ng to\u00e1n to\u00e1n ti\u1ebfng Anh Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math \u0111\u1ec3 t\u1ea1o ra m\u1ed9t c\u00f4ng c\u1ee5 hi\u1ec7u qu\u1ea3 \u0111\u1ec3 d\u1ea1y tr\u1ebb h\u1ecdc.<\/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\/tinh-chat-giao-hoan-cua-phep-cong-5.jpg\" alt=\"H\u1ecdc to\u00e1n b\u1eb1ng nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p v\u1edbi to\u00e1n h\u1ecdc kh\u1ec9. (\u1ea2nh: Kh\u1ec9)\" width=\"800\" height=\"450\"><\/p>\n<p dir=\"ltr\">Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math l\u00e0 m\u1ed9t \u1ee9ng d\u1ee5ng cho To\u00e1n h\u1ecdc Kh\u1ec9 To\u00e1n h\u1ecdc \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n b\u1edfi Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef, v\u1edbi n\u1ed9i dung c\u1ee7a Ch\u01b0\u01a1ng tr\u00ecnh Gi\u00e1o d\u1ee5c M\u1edbi c\u1ee7a B\u1ed9 Gi\u00e1o d\u1ee5c v\u00e0 \u0110\u00e0o t\u1ea1o \u0111\u01b0\u1ee3c trao cho tr\u1ebb m\u1eabu gi\u00e1o v\u00e0 tr\u1ebb em ti\u1ec3u h\u1ecdc. C\u1ee5 th\u1ec3, Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math cung c\u1ea5p h\u01a1n 400 b\u00e0i h\u1ecdc d\u01b0\u1edbi d\u1ea1ng video, minh h\u1ecda s\u1ed1ng \u0111\u1ed9ng \u0111\u1ec3 gi\u00fap tr\u1ebb c\u00f3 \u0111\u01b0\u1ee3c ki\u1ebfn \u200b\u200bth\u1ee9c d\u1ec5 d\u00e0ng nh\u1ea5t.<\/p>\n<p dir=\"ltr\">Sau \u0111\u00f3, em b\u00e9 c\u1ee7a b\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c th\u1ef1c h\u00e0nh v\u00e0 th\u1ef1c h\u00e0nh nhi\u1ec1u h\u01a1n th\u00f4ng qua 10.000 ho\u1ea1t \u0111\u1ed9ng t\u01b0\u01a1ng t\u00e1c m\u00e0 Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math cung c\u1ea5p. \u0110i\u1ec1u n\u00e0y s\u1ebd gi\u00fap con b\u1ea1n th\u1ef1c s\u1ef1 hi\u1ec3u \u00fd ngh\u0129a c\u1ee7a to\u00e1n h\u1ecdc, c\u0169ng nh\u01b0 m\u1edf r\u1ed9ng t\u01b0 duy to\u00e1n h\u1ecdc v\u00e0 quan tr\u1ecdng l\u00e0 qu\u00e1 tr\u00ecnh h\u1ecdc t\u1eadp v\u1eeba \u0111\u01b0\u1ee3c ch\u01a1i s\u1ebd gi\u00fap t\u0103ng s\u1ef1 quan t\u00e2m v\u00e0 y\u00eau th\u00edch m\u00f4n h\u1ecdc n\u00e0y nhi\u1ec1u h\u01a1n.<\/p>\n<p dir=\"ltr\">T\u1ea5t c\u1ea3 c\u00e1c b\u00e0i h\u1ecdc d\u1ef1a tr\u00ean 60 ch\u1ee7 \u0111\u1ec1 to\u00e1n h\u1ecdc c\u1ee7a 7 ch\u1ee7 \u0111\u1ec1 ch\u00ednh \u0111\u1ec3 gi\u00fap tr\u1ebb d\u1ec5 d\u00e0ng n\u1eafm b\u1eaft c\u00e1c kh\u00e1i ni\u1ec7m to\u00e1n h\u1ecdc nh\u01b0 s\u1ed1, \u0111\u1ebfm, t\u00ednh to\u00e1n, t\u01b0 duy \u0111\u1ea1i s\u1ed1, h\u00ecnh h\u1ecdc, \u0111o l\u01b0\u1eddng, v.v &#8230; M\u1ed7i ki\u1ebfn \u200b\u200bth\u1ee9c s\u1ebd \u0111\u01b0\u1ee3c chia th\u00e0nh 4 c\u1ea5p \u0111\u1ed9 t\u1eeb d\u1ec5 d\u00e0ng \u0111\u1ec3 cha m\u1eb9 ch\u1ecdn c\u00e1c b\u00e0i h\u1ecdc ph\u00f9 h\u1ee3p v\u1edbi tu\u1ed5i v\u00e0 kh\u1ea3 n\u0103ng c\u1ee7a tr\u1ebb.<\/p>\n<p dir=\"ltr\">C\u1ee5 th\u1ec3 h\u01a1n, khi h\u1ecdc to\u00e1n v\u1ec1 to\u00e1n kh\u1ec9, em b\u00e9 s\u1ebd ph\u1ea3i h\u1ecdc b\u1eb1ng ti\u1ebfng Anh, v\u00ec v\u1eady n\u00f3 gi\u00fap tr\u1ebb th\u1ef1c h\u00e0nh ngo\u1ea1i ng\u1eef t\u1ed1t h\u01a1n. Tuy nhi\u00ean, \u0111\u1ed1i v\u1edbi ngo\u1ea1i ng\u1eef, v\u1eabn c\u00f3 th\u1ec3 h\u1ecdc v\u00ec n\u1ed9i dung \u0111\u01b0\u1ee3c c\u00e1 nh\u00e2n h\u00f3a b\u1edfi kh\u1ec9, k\u1ebft h\u1ee3p v\u1edbi h\u00ecnh \u1ea3nh video minh h\u1ecda r\u00f5 r\u00e0ng s\u1ebd gi\u00fap tr\u1ebb h\u1ecdc to\u00e1n v\u00e0 h\u1ecdc ti\u1ebfng Anh t\u1ed1t h\u01a1n.<\/p>\n<p dir=\"ltr\">Ph\u1ee5 huynh c\u00f3 th\u1ec3 t\u00ecm hi\u1ec3u th\u00eam v\u1ec1 to\u00e1n h\u1ecdc kh\u1ec9 video sau:<\/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<p dir=\"ltr\">T\u1ea3i xu\u1ed1ng Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math cho \u0111i\u1ec7n tho\u1ea1i Android<\/p>\n<p dir=\"ltr\">T\u1ea3i xu\u1ed1ng Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math cho \u0111i\u1ec7n tho\u1ea1i iOS<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tim_hieu_cac_thuoc_tinh_giao_hoan_bo_sung_dua_tren_vi_du_ve_thuc_hanh\"><\/span>T\u00ecm hi\u1ec3u c\u00e1c thu\u1ed9c t\u00ednh giao ho\u00e1n b\u1ed5 sung d\u1ef1a tr\u00ean v\u00ed d\u1ee5 v\u1ec1 th\u1ef1c h\u00e0nh<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ec3 gi\u00fap em b\u00e9 c\u1ee7a b\u1ea1n d\u1ec5 d\u00e0ng h\u00ecnh dung h\u01a1n n\u1eefa vi\u1ec7c giao ho\u00e1n, ph\u1ee5 huynh c\u00f3 th\u1ec3 l\u1ea5y v\u00ed d\u1ee5 g\u1ea7n v\u1edbi em b\u00e9 ho\u1eb7c s\u1eed d\u1ee5ng c\u00e1c v\u1eadt th\u1ec3 xung quanh nh\u01b0 m\u1ed9t c\u00f4ng c\u1ee5 \u0111\u1ec3 h\u1ed7 tr\u1ee3 h\u1ecdc t\u1eadp. V\u00ed d\u1ee5, l\u1ea5y 5 qu\u1ea3 t\u00e1o + 3 qu\u00fdm c\u0169ng s\u1ebd b\u1eb1ng 5 qu\u00fdt v\u1edbi 3 qu\u1ea3 t\u00e1o l\u00e0 8 qu\u1ea3.<\/p>\n<p dir=\"ltr\">Khi l\u1ea5y v\u00ed d\u1ee5, em b\u00e9 h\u01a1n, em b\u00e9 kh\u00f4ng ch\u1ec9 d\u1ec5 t\u01b0\u1edfng t\u01b0\u1ee3ng, m\u00e0 anh s\u1ebd th\u1ea5y d\u1ec5 hi\u1ec3u h\u01a1n, t\u1eeb \u0111\u00f3 anh s\u1ebd nh\u1edb t\u1ed1t h\u01a1n thay v\u00ec ch\u1ec9 h\u1ecdc tr\u00ean s\u00e1ch.<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Voi_em_be_cua_ban_de_luyen_tap_thuc_hanh_nhieu_hon\"><\/span>V\u1edbi em b\u00e9 c\u1ee7a b\u1ea1n \u0111\u1ec3 luy\u1ec7n t\u1eadp, th\u1ef1c h\u00e0nh nhi\u1ec1u h\u01a1n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">H\u1ecdc v\u1edbi h\u00e0nh t\u00e2y lu\u00f4n \u0111\u00fang trong m\u1ecdi tr\u01b0\u1eddng h\u1ee3p, l\u0129nh v\u1ef1c ho\u1eb7c b\u1ea5t k\u1ef3 m\u00f4n h\u1ecdc n\u00e0o. N\u1ebfu em b\u00e9 c\u1ee7a b\u1ea1n ch\u1ec9 l\u00e0m ch\u1ee7 l\u00fd thuy\u1ebft m\u00e0 kh\u00f4ng c\u1ea7n th\u1ef1c h\u00e0nh, th\u1eadt d\u1ec5 d\u00e0ng \u0111\u1ec3 qu\u00ean \u0111i m\u1ed9t c\u00e1ch nhanh ch\u00f3ng. Do \u0111\u00f3, cha m\u1eb9 c\u1ea7n t\u1ea1o \u0111i\u1ec1u ki\u1ec7n cho tr\u1ebb th\u1ef1c h\u00e0nh v\u00e0 th\u1ef1c h\u00e0nh th\u01b0\u1eddng xuy\u00ean.<\/p>\n<p dir=\"ltr\">Th\u1ef1c h\u00e0nh th\u01b0\u1eddng xuy\u00ean c\u00f3 th\u1ec3 \u0111\u1ebfn t\u1eeb con b\u1ea1n \u0111\u1ec3 th\u1ef1c hi\u1ec7n nhi\u1ec1u b\u00e0i t\u1eadp, cha m\u1eb9 th\u01b0\u1eddng h\u1ecfi c\u00e1c c\u00e2u h\u1ecfi li\u00ean quan \u0111\u1ec3 ki\u1ec3m tra ki\u1ebfn \u200b\u200bth\u1ee9c c\u1ee7a ch\u00fang, s\u1eafp x\u1ebfp c\u00e1c tr\u00f2 ch\u01a1i v\u1ec1 vi\u1ec7c b\u1ed5 sung, gi\u1ea3i c\u00e1c c\u00e2u \u0111\u1ed1, t\u00ecm hi\u1ec3u th\u00eam ki\u1ebfn \u200b\u200bth\u1ee9c m\u1edbi, &#8230;<\/p>\n<p dir=\"ltr\">Ch\u00ednh nh\u1eefng \u0111i\u1ec1u n\u00e0y s\u1ebd gi\u00fap tr\u1ebb m\u1edf r\u1ed9ng ki\u1ebfn \u200b\u200bth\u1ee9c, hi\u1ec3u v\u00e0 n\u1eafm b\u1eaft ki\u1ebfn \u200b\u200bth\u1ee9c c\u0169ng nh\u01b0 ph\u00e1t tri\u1ec3n t\u01b0 duy c\u1ee7a ch\u00fang t\u1ed1t h\u01a1n khi h\u1ecdc to\u00e1n.<\/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\/tinh-chat-giao-hoan-cua-phep-cong-4.jpg\" alt=\"Vi\u1ec7c th\u1ef1c h\u00e0nh th\u01b0\u1eddng xuy\u00ean l\u00e0 quan tr\u1ecdng. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mot_so_bai_tap_ve_tinh_toan_ma_thuat_pho_bien_cho_tre_so_sinh_thuc_hanh\"><\/span>M\u1ed9t s\u1ed1 b\u00e0i t\u1eadp v\u1ec1 t\u00ednh to\u00e1n ma thu\u1eadt ph\u1ed5 bi\u1ebfn cho tr\u1ebb s\u01a1 sinh 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 v\u1ec1 c\u00e1c thu\u1ed9c t\u00ednh giao ho\u00e1n c\u1ee7a vi\u1ec7c b\u1ed5 sung m\u00e0 cha m\u1eb9 c\u00f3 th\u1ec3 cho ph\u00e9p h\u1ecd t\u1ef1 r\u00e8n luy\u1ec7n:<\/p>\n<p dir=\"ltr\">B\u00e0i 1: Li\u1ec7t k\u00ea c\u00e1c k\u1ebft qu\u1ea3:<\/p>\n<p dir=\"ltr\">A) 468 + 379 = 847<\/p>\n<p dir=\"ltr\">379 + 468 = &#8230;..<\/p>\n<p dir=\"ltr\">b) 6509 + 2876 = 9385<\/p>\n<p dir=\"ltr\">2876 + 6509 = &#8230;..<\/p>\n<p dir=\"ltr\">c) 4268 + 76 = 4344<\/p>\n<p dir=\"ltr\">76 + 4268 = &#8230;..<\/p>\n<p dir=\"ltr\">B\u00e0i 2: Vi\u1ebft s\u1ed1 ho\u1eb7c t\u1eeb th\u00edch h\u1ee3p trong d\u1ea5u ch\u1ea5m:<\/p>\n<p dir=\"ltr\">a) 48 + 12 = 12 + &#8230;..<\/p>\n<p dir=\"ltr\">65 + 297 = &#8230;.. + 65<\/p>\n<p dir=\"ltr\">&#8230;. + 89 = 89 + 177<\/p>\n<p dir=\"ltr\">b) m + n = n + &#8230;.<\/p>\n<p dir=\"ltr\">84 + 0 = &#8230;. + 84<\/p>\n<p dir=\"ltr\">A + 0 = &#8230;. + A = &#8230;..<\/p>\n<p dir=\"ltr\">B\u00e0i 3: So s\u00e1nh c\u00e1c bi\u1ec3u th\u1ee9c sau:<\/p>\n<p dir=\"ltr\">A) 2975 + 4017 &#8230;. 4017 + 2975<\/p>\n<p dir=\"ltr\">2975 + 4017 &#8230;. 4017 + 3000<\/p>\n<p dir=\"ltr\">2975 + 4017 &#8230;. 4017 + 2900<\/p>\n<p dir=\"ltr\">b) 8264 + 927 &#8230;. 927 + 8300<\/p>\n<p dir=\"ltr\">8264 + 927 &#8230;. 900 + 8264<\/p>\n<p dir=\"ltr\">8264 + 927 &#8230;. 927 + 8264<\/p>\n<p dir=\"ltr\">B\u00e0i h\u1ecdc 4: LAN n\u00f3i: &#8220;78964+9 &lt;9+78964&quot;. \u0110\u00fang hay sai?<\/p>\n<p dir=\"ltr\">B\u00e0i 5: \u0110\u01b0a ra bi\u1ec3u th\u1ee9c: (699750 +70) +147563 T\u00ecm bi\u1ec3u th\u1ee9c v\u1edbi bi\u1ec3u th\u1ee9c \u0111\u00e3 cho.<\/p>\n<p dir=\"ltr\">B\u00e0i 6: Chai g\u1ea5p 450 c\u1ea7n c\u1ea9u gi\u1ea5y \u0111\u1ecf, 219 c\u1ea7n c\u1ea9u xanh. NAM c\u0169ng g\u1ea5p 210 c\u1ea7n c\u1ea9u xanh v\u00e0 450 c\u1ea7n c\u1ea9u gi\u1ea5y \u0111\u1ecf. H\u1ecfi ai g\u1ea5p th\u00eam c\u1ea7n c\u1ea9u gi\u1ea5y?<\/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\">Ki\u1ebfn th\u1ee9c to\u00e1n h\u1ecdc c\u01a1 b\u1ea3n v\u1ec1 c\u00e1c t\u00ednh ch\u1ea5t giao ho\u00e1n c\u1ee7a vi\u1ec7c b\u1ed5 sung kh\u00f4ng qu\u00e1 kh\u00f3 \u0111\u1ec3 ghi nh\u1edb ho\u1eb7c kh\u00f3 hi\u1ec3u. Tuy nhi\u00ean, ph\u1ee5 huynh n\u00ean y\u00eau c\u1ea7u tr\u1ebb l\u00e0m ch\u1ee7 vi\u1ec7c t\u1ea1o ra m\u1ed9t ti\u1ec1n \u0111\u1ec1 cho ki\u1ebfn \u200b\u200bth\u1ee9c n\u00e2ng cao h\u01a1n trong l\u1edbp h\u1ecdc cao h\u01a1n. Gi\u1ed1ng nh\u01b0 b\u1ea1n c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng c\u00e1c m\u1eb9o tr\u00ean \u0111\u1ec3 gi\u00fap c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 h\u1ecdc t\u1eadp c\u1ee7a con b\u1ea1n. <\/p>\n<p>                                    T\u00e0i li\u1ec7u tham kh\u1ea3o<\/p>\n<p>T\u00e0i s\u1ea3n giao ho\u00e1n<\/p>\n<p>https:\/\/www.cuemath.com\/numbers\/commutative-propty\/<\/p>\n<p>T\u00e0i s\u1ea3n giao ho\u00e1n b\u1ed5 sung &#8211; \u0110\u1ecbnh ngh\u0129a v\u1edbi c\u00e1c v\u00ed d\u1ee5<\/p>\n<p>https:\/\/www.splashlearn.com\/math-vocabulary\/division\/commutative-poptery-of-addition<\/p>\n<p>T\u00ednh ch\u1ea5t c\u1ee7a b\u1ed5 sung<\/p>\n<p>https:\/\/www.khanacademy.org\/math\/cc-sixth-grade-math\/cc-6th-pressions-and-variables\/properies-of-numbers\/a\/properties-if -addition#shex:%2c%20<\/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>C\u00e1c t\u00ednh ch\u1ea5t giao ho\u00e1n c\u1ee7a b\u1ed5 sung \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 m\u1ed9t b\u1ea3n ch\u1ea5t c\u1ef1c k\u1ef3 \u0111\u1eb7c tr\u01b0ng \u0111\u1ec3 l\u00e0m cho t\u00ednh to\u00e1n ch\u00ednh x\u00e1c v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n. V\u00ec v\u1eady, \u0111\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 c\u00e1c c\u00e1ch th\u00f4ng th\u01b0\u1eddng v\u00e0 hi\u1ec7u qu\u1ea3, kh\u00f4ng b\u1ecf qua nh\u1eefng b\u00e0i vi\u1ebft sau \u0111\u00e2y, kh\u1ec9 s\u1ebd chia s\u1ebb&#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-17414","post","type-post","status-publish","format-standard","hentry","category-kien-thuc"],"_links":{"self":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/17414","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=17414"}],"version-history":[{"count":2,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/17414\/revisions"}],"predecessor-version":[{"id":23742,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/17414\/revisions\/23742"}],"wp:attachment":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/media?parent=17414"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/categories?post=17414"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/tags?post=17414"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}