{"id":14197,"date":"2025-06-07T02:49:40","date_gmt":"2025-06-06T19:49:40","guid":{"rendered":"https:\/\/www.ckconitsha.com\/vn\/?p=14197"},"modified":"2025-07-04T06:50:05","modified_gmt":"2025-07-03T23:50:05","slug":"so-hang-la-gi-cac-dang-bai-toan-ve-so-hang-va-phep-cong-thuong-gap","status":"publish","type":"post","link":"https:\/\/www.ckconitsha.com\/vn\/so-hang-la-gi-cac-dang-bai-toan-ve-so-hang-va-phep-cong-thuong-gap\/","title":{"rendered":"S\u1ed1 h\u1ea1ng l\u00e0 g\u00ec? C\u00e1c d\u1ea1ng b\u00e0i to\u00e1n v\u1ec1 s\u1ed1 h\u1ea1ng v\u00e0 ph\u00e9p c\u1ed9ng th\u01b0\u1eddng g\u1eb7p"},"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\/so-hang-la-gi-cac-dang-bai-toan-ve-so-hang-va-phep-cong-thuong-gap\/#Thuat_ngu_la_gi\" >Thu\u1eadt ng\u1eef 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\/so-hang-la-gi-cac-dang-bai-toan-ve-so-hang-va-phep-cong-thuong-gap\/#Cac_thuoc_tinh_cua_bo_sung\" >C\u00e1c thu\u1ed9c t\u00ednh c\u1ee7a b\u1ed5 sung<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.ckconitsha.com\/vn\/so-hang-la-gi-cac-dang-bai-toan-ve-so-hang-va-phep-cong-thuong-gap\/#Cac_hinh_thuc_bo_sung_co_ban\" >C\u00e1c h\u00ecnh th\u1ee9c b\u1ed5 sung c\u01a1 b\u1ea3n<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.ckconitsha.com\/vn\/so-hang-la-gi-cac-dang-bai-toan-ve-so-hang-va-phep-cong-thuong-gap\/#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-5\" href=\"https:\/\/www.ckconitsha.com\/vn\/so-hang-la-gi-cac-dang-bai-toan-ve-so-hang-va-phep-cong-thuong-gap\/#Mau_2_Toan_hoc_cau_do_Bai_toan\" >M\u1eabu 2: To\u00e1n h\u1ecdc c\u00e2u \u0111\u1ed1 (B\u00e0i 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\/so-hang-la-gi-cac-dang-bai-toan-ve-so-hang-va-phep-cong-thuong-gap\/#Mau_3_Tim_thuat_ngu_con_thieu_trong_tinh_toan\" >M\u1eabu 3: T\u00ecm thu\u1eadt ng\u1eef c\u00f2n thi\u1ebfu trong 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-7\" href=\"https:\/\/www.ckconitsha.com\/vn\/so-hang-la-gi-cac-dang-bai-toan-ve-so-hang-va-phep-cong-thuong-gap\/#Mau_4_Tinh_bieu_thuc_chua_va_nhan\" >M\u1eabu 4: T\u00ednh bi\u1ec3u th\u1ee9c ch\u1ee9a v\u00e0 nh\u00e2n<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.ckconitsha.com\/vn\/so-hang-la-gi-cac-dang-bai-toan-ve-so-hang-va-phep-cong-thuong-gap\/#Giai_cac_bai_tap_toan_hoc_ve_cac_dieu_khoan_Trang_14_Lop_2_Sach_giao_khoa_dieu\" >Gi\u1ea3i c\u00e1c b\u00e0i t\u1eadp to\u00e1n h\u1ecdc v\u1ec1 c\u00e1c \u0111i\u1ec1u kho\u1ea3n Trang 14, L\u1edbp 2, S\u00e1ch gi\u00e1o khoa di\u1ec1u<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.ckconitsha.com\/vn\/so-hang-la-gi-cac-dang-bai-toan-ve-so-hang-va-phep-cong-thuong-gap\/#Bai_1_trang_14_Toan_hoc_lop_2_Sach_giao_khoa\" >B\u00e0i 1, trang 14, To\u00e1n h\u1ecdc l\u1edbp 2, S\u00e1ch gi\u00e1o khoa<\/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\/so-hang-la-gi-cac-dang-bai-toan-ve-so-hang-va-phep-cong-thuong-gap\/#Bai_2_Trang_14_Toan_hoc_lop_2_Sach_giao_khoa\" >B\u00e0i 2, Trang 14, To\u00e1n h\u1ecdc l\u1edbp 2, S\u00e1ch gi\u00e1o khoa<\/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\/so-hang-la-gi-cac-dang-bai-toan-ve-so-hang-va-phep-cong-thuong-gap\/#Bai_3_Trang_14_Toan_hoc_lop_2_Sach_giao_khoa\" >B\u00e0i 3, Trang 14, To\u00e1n h\u1ecdc l\u1edbp 2, S\u00e1ch gi\u00e1o khoa<\/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\/so-hang-la-gi-cac-dang-bai-toan-ve-so-hang-va-phep-cong-thuong-gap\/#Tom_tat_cac_dieu_khoan_cua_thuat_ngu_va_bo_sung_co_cau_tra_loi\" >T\u00f3m t\u1eaft c\u00e1c \u0111i\u1ec1u kho\u1ea3n c\u1ee7a thu\u1eadt ng\u1eef v\u00e0 b\u1ed5 sung (c\u00f3 c\u00e2u tr\u1ea3 l\u1eddi)<\/a><\/li><\/ul><\/nav><\/div>\n<\/p>\n<p>&#8220;Thu\u1eadt ng\u1eef l\u00e0 g\u00ec?&#8221; L\u00e0 m\u1ed9t trong nh\u1eefng c\u00e2u h\u1ecfi m\u00e0 nhi\u1ec1u ng\u01b0\u1eddi, \u0111\u1eb7c bi\u1ec7t l\u00e0 sinh vi\u00ean, th\u01b0\u1eddng h\u1ecfi khi t\u00ecm hi\u1ec3u v\u1ec1 to\u00e1n h\u1ecdc c\u01a1 b\u1ea3n. Hi\u1ec3u kh\u00e1i ni\u1ec7m n\u00e0y kh\u00f4ng ch\u1ec9 gi\u00fap b\u1ea1n l\u00e0m ch\u1ee7 ki\u1ebfn \u200b\u200bth\u1ee9c c\u1ee7a m\u00ecnh, m\u00e0 c\u00f2n l\u00e0 n\u1ec1n t\u1ea3ng \u0111\u1ec3 gi\u1ea3i quy\u1ebft nhi\u1ec1u lo\u1ea1i v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn c\u00e1c \u0111i\u1ec1u kho\u1ea3n v\u00e0 b\u1ed5 sung. H\u00e3y t\u00ecm hi\u1ec3u ngay b\u00e2y gi\u1edd!<\/p>\n<p>                        Xem t\u1ea5t c\u1ea3<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Thuat_ngu_la_gi\"><\/span>Thu\u1eadt ng\u1eef l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Thu\u1eadt ng\u1eef l\u00e0 g\u00ec? Trong to\u00e1n h\u1ecdc, khi n\u00f3i \u0111\u1ebfn b\u1ed5 sung, ch\u00fang ta th\u01b0\u1eddng g\u1eb7p c\u00e1c con s\u1ed1 tr\u01b0\u1edbc d\u1ea5u hi\u1ec7u. Nh\u1eefng con s\u1ed1 n\u00e0y \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng v\u00e0 ch\u00fang t\u00f4i g\u1ecdi ch\u00fang l\u00e0 &#8220;thu\u1eadt ng\u1eef&#8221;. M\u1ed9t b\u1ed5 sung c\u00f3 th\u1ec3 bao g\u1ed3m \u00edt nh\u1ea5t hai \u0111i\u1ec1u kho\u1ea3n tr\u1edf l\u00ean.<\/p>\n<p dir=\"ltr\">Gi\u1ea3 s\u1eed ch\u00fang ta c\u00f3 b\u1ed5 sung sau: 7 + 2 + 10 = 19<\/p>\n<p dir=\"ltr\">\u0110\u00e2y:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">7, 2 v\u00e0 10 l\u00e0 c\u00e1c \u0111i\u1ec1u kho\u1ea3n.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">19, k\u1ebft qu\u1ea3 thu \u0111\u01b0\u1ee3c sau khi th\u00eam, l\u00e0 t\u1ed5ng.<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">N\u1eafm v\u1eefng \u00fd ngh\u0129a v\u00e0 vi\u1ec7c s\u1eed d\u1ee5ng thu\u1eadt ng\u1eef n\u00e0y s\u1ebd gi\u00fap sinh vi\u00ean truy c\u1eadp d\u1ec5 d\u00e0ng h\u01a1n v\u1edbi t\u01b0\u01a1ng lai.<\/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\/1-so-hang-la-gi.png\" alt=\"Thu\u1eadt ng\u1eef l\u00e0 g\u00ec? (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cac_thuoc_tinh_cua_bo_sung\"><\/span>C\u00e1c thu\u1ed9c t\u00ednh c\u1ee7a b\u1ed5 sung<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Sau khi hi\u1ec3u &#8220;thu\u1eadt ng\u1eef&#8221; g\u00ec? &#8221; &#8211; l\u00e0 nh\u1eefng con s\u1ed1 li\u00ean quan b\u1ed5 sung. Khi n\u00f3i v\u1ec1 to\u00e1n h\u1ecdc, ch\u00fang t\u00f4i kh\u00f4ng th\u1ec3 kh\u00f4ng \u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u00e1c \u0111\u1eb7c t\u00ednh quan tr\u1ecdng c\u1ee7a n\u00f3. C\u1ee5 th\u1ec3:<\/p>\n<p dir=\"ltr\">1. Vi\u1ec7c \u0111i l\u1ea1i: T\u00ednh n\u0103ng \u0111\u1eb7c bi\u1ec7t c\u1ee7a vi\u1ec7c b\u1ed5 sung l\u00e0 b\u1ea1n c\u00f3 th\u1ec3 thay \u0111\u1ed5i v\u1ecb tr\u00ed c\u1ee7a c\u00e1c thu\u1eadt ng\u1eef m\u00e0 k\u1ebft qu\u1ea3 c\u1ee7a t\u00ednh to\u00e1n v\u1eabn kh\u00f4ng thay \u0111\u1ed5i.<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">A + b = b + a<\/p>\n<p dir=\"ltr\">V\u00ed d\u1ee5: 5 + 4 = 4 +5 = 9<\/p>\n<p dir=\"ltr\">2. K\u1ebft h\u1ee3p: B\u1ea1n c\u00f3 th\u1ec3 nh\u00f3m c\u00e1c thu\u1eadt ng\u1eef theo c\u00e1ch b\u1ea1n mu\u1ed1n, m\u00e0 kh\u00f4ng t\u1ea1o ra k\u1ebft qu\u1ea3 c\u1ee7a s\u1ef1 thay \u0111\u1ed5i.<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">(A + B) + C = A + (B + C)<\/p>\n<p dir=\"ltr\">V\u00ed d\u1ee5: (8 + 3) + 6 = 8 + (3 + 6) = 17<\/p>\n<p dir=\"ltr\">3. C\u1ed9ng v\u1edbi 0: C\u00e1c thu\u1eadt ng\u1eef khi c\u1ed9ng 0 lu\u00f4n gi\u1eef gi\u00e1 tr\u1ecb c\u1ee7a ch\u00fang. S\u1ed1 0 l\u00e0 m\u1ed9t s\u1ed1 \u0111\u1eb7c bi\u1ec7t, ngo\u00e0i vai tr\u00f2 c\u1ee7a &#8220;y\u1ebfu t\u1ed1 \u0111\u1ed3ng nh\u1ea5t&#8221;.<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">A + 0 = a<\/p>\n<p dir=\"ltr\">V\u00ed d\u1ee5: 7 + 0 = 7<\/p>\n<p dir=\"ltr\">4. Ph\u00e2n ph\u1ed1i gi\u1eefa b\u1ed5 sung v\u00e0 nh\u00e2n: \u0110\u00e2y l\u00e0 m\u1ed9t thu\u1ed9c t\u00ednh li\u00ean quan \u0111\u1ebfn c\u1ea3 b\u1ed5 sung v\u00e0 nh\u00e2n.<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">A \u00d7 (b + c) = a \u00d7 b + a \u00d7 c<\/p>\n<p dir=\"ltr\">V\u00ed d\u1ee5: 3 \u00d7 (4 + 5) = 3 \u00d7 4 + 3 \u00d7 5 = 27<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/2-so-hang-la-gi.png\" alt=\"C\u00e1c thu\u1ed9c t\u00ednh c\u1ee7a b\u1ed5 sung. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">Hi\u1ec3u v\u00e0 l\u00e0m ch\u1ee7 c\u00e1c thu\u1ed9c t\u00ednh n\u00e0y s\u1ebd gi\u00fap sinh vi\u00ean truy c\u1eadp v\u00e0 gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 linh ho\u1ea1t h\u01a1n, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c v\u1ea5n \u0111\u1ec1 n\u00e2ng cao v\u00e0 ph\u1ee9c t\u1ea1p trong c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh sau n\u00e0y.<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cac_hinh_thuc_bo_sung_co_ban\"><\/span>C\u00e1c h\u00ecnh th\u1ee9c b\u1ed5 sung c\u01a1 b\u1ea3n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Ngo\u00e0i ra l\u00e0 m\u1ed9t trong nh\u1eefng kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n v\u00e0 quan tr\u1ecdng nh\u1ea5t trong to\u00e1n h\u1ecdc. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 lo\u1ea1i v\u1ea5n \u0111\u1ec1 c\u01a1 b\u1ea3n v\u1ec1 c\u00e1c b\u1ed5 sung m\u00e0 sinh vi\u00ean th\u01b0\u1eddng g\u1eb7p:<\/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\">Trong h\u00ecnh th\u1ee9c n\u00e0y c\u1ee7a v\u1ea5n \u0111\u1ec1 n\u00e0y, \u0111i\u1ec1u r\u1ea5t quan tr\u1ecdng l\u00e0 \u0111\u1eb7t c\u00e1c thu\u1eadt ng\u1eef \u0111\u1ec3 ch\u00fang r\u1ea5t quan tr\u1ecdng. \u0110i\u1ec1u n\u00e0y l\u00e0m cho c\u1ed9ng v\u1edbi d\u1ec5 d\u00e0ng h\u01a1n v\u00e0 c\u00f3 h\u1ec7 th\u1ed1ng h\u01a1n, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi l\u00e0m vi\u1ec7c v\u1edbi c\u00e1c s\u1ed1 \u0111a ch\u1eef s\u1ed1. B\u1ea1n n\u00ean b\u1eaft \u0111\u1ea7u t\u1eeb \u0111\u01a1n v\u1ecb, sau \u0111\u00f3 h\u00e0ng ch\u1ee5c, h\u00e0ng tr\u0103m v\u00e0 ti\u1ebfp t\u1ee5c theo th\u1ee9 t\u1ef1 \u0111\u00f3. N\u1ebfu c\u00f3 s\u1ef1 c\u00e2n b\u1eb1ng trong qu\u00e1 tr\u00ecnh c\u1ed9ng \u1edf m\u1ed9t h\u00e0ng nh\u1ea5t \u0111\u1ecbnh, s\u1ed1 d\u01b0 n\u00e0y s\u1ebd \u0111\u01b0\u1ee3c chuy\u1ec3n sang h\u00e0ng ti\u1ebfp theo.<\/p>\n<p dir=\"ltr\">V\u00ed d\u1ee5: 327 + 568 =?<\/p>\n<p dir=\"ltr\">H\u01b0\u1edbng d\u1eabn:<\/p>\n<ol>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">B\u1eaft \u0111\u1ea7u t\u1eeb \u0111\u01a1n v\u1ecb: 7 + 8 = 15.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ti\u1ebfp t\u1ee5c trong h\u00e0ng ch\u1ee5c: 2 + 6 + 1 (s\u1ed1 b\u1ed9 nh\u1edb) = 9.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Cu\u1ed1i c\u00f9ng, trong h\u00e0ng tr\u0103m: 3 + 5 = 8. Vi\u1ebft 8 trong h\u00e0ng tr\u0103m.<\/p>\n<\/li>\n<\/ol>\n<p dir=\"ltr\" style=\"padding-left: 40px\">Tr\u1ea3 l\u1eddi: 327 + 568 = 895<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/3-so-hang-la-gi.png\" alt=\"M\u1eabu 1: \u0110\u1eb7t t\u00ednh to\u00e1n v\u00e0 t\u00ednh to\u00e1n. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_2_Toan_hoc_cau_do_Bai_toan\"><\/span>M\u1eabu 2: To\u00e1n h\u1ecdc c\u00e2u \u0111\u1ed1 (B\u00e0i to\u00e1n)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">H\u00ecnh th\u1ee9c c\u00e2u \u0111\u1ed1 th\u01b0\u1eddng \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y th\u00f4ng qua m\u1ed9t t\u00ecnh hu\u1ed1ng, m\u00f4 t\u1ea3 ho\u1eb7c c\u00e2u chuy\u1ec7n. \u0110\u1ec3 gi\u1ea3i quy\u1ebft lo\u1ea1i v\u1ea5n \u0111\u1ec1 n\u00e0y, h\u1ecdc sinh c\u1ea7n \u0111\u1ecdc v\u00e0 hi\u1ec3u th\u00f4ng tin quan tr\u1ecdng t\u1eeb c\u00e1c t\u1eeb, sau \u0111\u00f3 s\u1eed d\u1ee5ng ph\u00e9p b\u1ed5 sung (ho\u1eb7c to\u00e1n h\u1ecdc kh\u00e1c n\u1ebfu c\u1ea7n) \u0111\u1ec3 t\u00ecm c\u00e2u tr\u1ea3 l\u1eddi. \u0110i\u1ec1u n\u00e0y kh\u00f4ng ch\u1ec9 gi\u00fap th\u1ef1c h\u00e0nh c\u00e1c k\u1ef9 n\u0103ng t\u00ednh to\u00e1n, m\u00e0 c\u00f2n ph\u00e1t tri\u1ec3n l\u00fd lu\u1eadn logic v\u00e0 hi\u1ec3u bi\u1ebft v\u1ec1 th\u1ebf gi\u1edbi xung quanh.<\/p>\n<p dir=\"ltr\">V\u00ed d\u1ee5, LAN c\u00f3 12 qu\u1ea3 b\u00f3ng xanh v\u00e0 7 qu\u1ea3 b\u00f3ng \u0111\u1ecf. H\u1ecfi Lan c\u00f3 bao nhi\u00eau vi\u00ean bi?<\/p>\n<p dir=\"ltr\">H\u01b0\u1edbng d\u1eabn:<\/p>\n<p dir=\"ltr\">\u0110\u1ec3 bi\u1ebft s\u1ed1 l\u01b0\u1ee3ng bi m\u00e0 LAN c\u00f3, ch\u00fang t\u00f4i th\u00eam s\u1ed1 l\u01b0\u1ee3ng bi m\u00e0u xanh v\u00e0 s\u1ed1 l\u01b0\u1ee3ng b\u00f3ng \u0111\u1ecf v\u1edbi nhau: <\/p>\n<p dir=\"ltr\">12 + 7 = 19<\/p>\n<p dir=\"ltr\">V\u00ec v\u1eady, Lan c\u00f3 t\u1ea5t c\u1ea3 19 qu\u1ea3 b\u00f3ng.<\/p>\n<table style=\"border-collapse: collapse;width: 100.01%;background-color: #fbeeb8\" border=\"1\">\n<tr>\n<td style=\"width: 98.5932%\">\n<p style=\"text-align: center\">\u0110\u1eebng b\u1ecf l\u1ee1 !!<\/p>\n<p style=\"text-align: center\">Ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n h\u1ecdc b\u1eb1ng ti\u1ebfng Anh, gi\u00fap ph\u00e1t tri\u1ec3n t\u01b0 duy theo c\u00e1ch to\u00e0n di\u1ec7n nh\u1ea5t.<\/p>\n<p style=\"text-align: center\">Nh\u1eadn t\u1ed1i \u0111a 40% \u01b0u \u0111\u00e3i ngay t\u1ea1i \u0111\u00e2y!<img decoding=\"async\" style=\"margin-left: auto;margin-right: auto\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/taimienphiMM.png\" width=\"185\"><\/p>\n<\/td>\n<\/tr>\n<\/table>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_3_Tim_thuat_ngu_con_thieu_trong_tinh_toan\"><\/span>M\u1eabu 3: T\u00ecm thu\u1eadt ng\u1eef c\u00f2n thi\u1ebfu trong t\u00ednh to\u00e1n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Lo\u1ea1i v\u1ea5n \u0111\u1ec1 n\u00e0y y\u00eau c\u1ea7u sinh vi\u00ean t\u00ecm th\u1ea5y gi\u00e1 tr\u1ecb c\u1ee7a m\u1ed9t s\u1ed1 kh\u00f4ng x\u00e1c \u0111\u1ecbnh trong m\u1ed9t b\u1ed5 sung, bi\u1ebft gi\u00e1 tr\u1ecb c\u1ee7a ph\u1ea7n c\u00f2n l\u1ea1i v\u00e0\/ho\u1eb7c t\u1ed5ng c\u1ee7a ch\u00fang. \u0110\u1ec3 gi\u1ea3i quy\u1ebft h\u00ecnh th\u1ee9c v\u1ea5n \u0111\u1ec1 n\u00e0y, h\u1ecdc sinh c\u1ea7n hi\u1ec3u c\u00e1ch th\u1ef1c hi\u1ec7n b\u1ed5 sung v\u00e0 s\u1eed d\u1ee5ng c\u00e1c k\u1ef9 n\u0103ng to\u00e1n h\u1ecdc l\u1ea1c h\u1eadu \u0111\u1ec3 t\u00ecm thu\u1eadt ng\u1eef c\u00f2n thi\u1ebfu.<\/p>\n<p dir=\"ltr\">V\u00ed d\u1ee5: T\u00ecm s\u1ed1 c\u00f2n thi\u1ebfu ngo\u00e0i ra: 3 &#8230; + 45 = 1..7<\/p>\n<p dir=\"ltr\">H\u01b0\u1edbng d\u1eabn:<\/p>\n<ol>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">B\u1eaft \u0111\u1ea7u t\u1eeb h\u00e0ng \u0111\u01a1n v\u1ecb, ch\u00fang t\u00f4i th\u1ea5y r\u1eb1ng s\u1ed1 c\u1ed9ng 5 s\u1ebd cho k\u1ebft qu\u1ea3 s\u1ed1 l\u01b0\u1ee3ng \u0111\u01a1n v\u1ecb l\u00e0 7. R\u00f5 r\u00e0ng l\u00e0 s\u1ed1 l\u00e0 2. V\u00ec v\u1eady, s\u1ed1 l\u01b0\u1ee3ng \u0111\u01a1n v\u1ecb c\u1ee7a thu\u1eadt ng\u1eef c\u00f2n thi\u1ebfu l\u00e0 2.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Trong h\u00e0ng ch\u1ee5c, ch\u00fang t\u00f4i c\u00f3 3 c\u1ed9ng v\u1edbi 4 b\u1eb1ng 7. Nh\u01b0ng t\u1ed5ng s\u1ed1 c\u00f3 s\u1ed1 l\u01b0\u1ee3ng h\u00e0ng ch\u1ee5c c\u00f3 s\u1eb5n 1, do \u0111\u00f3, k\u1ebft qu\u1ea3 th\u1ef1c c\u1ee7a vi\u1ec7c b\u1ed5 sung h\u00e0ng ch\u1ee5c 12 (c\u1ed9ng v\u1edbi s\u1ed1 1 t\u1eeb \u0111\u01a1n v\u1ecb). V\u00ec v\u1eady, s\u1ed1 l\u01b0\u1ee3ng h\u00e0ng ch\u1ee5c \u0111i\u1ec1u kho\u1ea3n b\u1ecb thi\u1ebfu 8.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">K\u1ebft lu\u1eadn, thu\u1eadt ng\u1eef c\u00f2n thi\u1ebfu l\u00e0 82.<\/p>\n<\/li>\n<\/ol>\n<p dir=\"ltr\" style=\"padding-left: 40px\">Vi\u1ec7c b\u1ed5 sung \u0111\u1ea7y \u0111\u1ee7 s\u1ebd l\u00e0: 382 + 45 = 427.<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/4-so-hang-la-gi.png\" alt=\"M\u1eabu 3: T\u00ecm thu\u1eadt ng\u1eef c\u00f2n thi\u1ebfu trong t\u00ednh to\u00e1n. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mau_4_Tinh_bieu_thuc_chua_va_nhan\"><\/span>M\u1eabu 4: T\u00ednh bi\u1ec3u th\u1ee9c ch\u1ee9a v\u00e0 nh\u00e2n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Lo\u1ea1i v\u1ea5n \u0111\u1ec1 n\u00e0y y\u00eau c\u1ea7u sinh vi\u00ean th\u1ef1c hi\u1ec7n c\u00e1c t\u00ednh to\u00e1n v\u1ec1 c\u00e1c bi\u1ec3u th\u1ee9c ch\u1ee9a c\u1ea3 b\u1ed5 sung v\u00e0 nh\u00e2n. \u0110\u1ec3 gi\u1ea3i quy\u1ebft hi\u1ec7u qu\u1ea3, sinh vi\u00ean c\u1ea7n \u01b0u ti\u00ean th\u1ef1c hi\u1ec7n ph\u00e9p nh\u00e2n tr\u01b0\u1edbc khi th\u00eam v\u00e0 t\u1eadn d\u1ee5ng c\u00e1c thu\u1ed9c t\u00ednh c\u1ee7a ph\u00e9p nh\u00e2n nh\u01b0 ph\u00e2n ph\u1ed1i \u0111\u1ec3 \u0111\u01a1n gi\u1ea3n h\u00f3a v\u00e0 t\u1ed1i \u01b0u h\u00f3a qu\u00e1 tr\u00ecnh t\u00ednh to\u00e1n.<\/p>\n<p dir=\"ltr\">V\u00ed d\u1ee5: T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c: 3 x 4 + 2 x 7<\/p>\n<p dir=\"ltr\">H\u01b0\u1edbng d\u1eabn:<\/p>\n<p dir=\"ltr\">B\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch th\u1ef1c hi\u1ec7n ph\u00e9p nh\u00e2n \u0111\u1ea7u ti\u00ean:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">3 x 4 = 12<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">2 x 7 = 14<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">Sau \u0111\u00f3 th\u1ef1c hi\u1ec7n b\u1ed5 sung:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">12 + 14 = 26<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">K\u1ebft lu\u1eadn, gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c l\u00e0 26.<\/p>\n<p dir=\"ltr\">\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Giai_cac_bai_tap_toan_hoc_ve_cac_dieu_khoan_Trang_14_Lop_2_Sach_giao_khoa_dieu\"><\/span>Gi\u1ea3i c\u00e1c b\u00e0i t\u1eadp to\u00e1n h\u1ecdc v\u1ec1 c\u00e1c \u0111i\u1ec1u kho\u1ea3n Trang 14, L\u1edbp 2, S\u00e1ch gi\u00e1o khoa di\u1ec1u<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t h\u01b0\u1edbng d\u1eabn chi ti\u1ebft v\u1ec1 c\u00e1ch gi\u1ea3i c\u00e1c b\u00e0i t\u1eadp to\u00e1n h\u1ecdc v\u1ec1 thu\u1eadt ng\u1eef c\u1ee7a trang 14, to\u00e1n h\u1ecdc l\u1edbp 2, di\u1ec1u s\u00e1ch gi\u00e1o khoa.<em> (T\u1ea5t c\u1ea3 th\u00f4ng tin trong ph\u1ea7n n\u00e0y, kh\u1ec9 \u0111\u00e3 s\u1eed d\u1ee5ng s\u00e1ch gi\u00e1o khoa v\u1ec1 di\u1ec1u \u0111i\u1ec7n t\u1eed t\u1ea1i hoc10.vn)<\/em><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_1_trang_14_Toan_hoc_lop_2_Sach_giao_khoa\"><\/span>B\u00e0i 1, trang 14, To\u00e1n h\u1ecdc l\u1edbp 2, S\u00e1ch gi\u00e1o khoa<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ec1 t\u00e0i:<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/5-so-hang-la-gi.png\" alt=\"\" width=\"100%\"><\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi:<\/p>\n<p dir=\"ltr\">M\u1ed9t. Trong t\u00ednh to\u00e1n 35 + 2 = 37, 35 v\u00e0 2 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 thu\u1eadt ng\u1eef; 37 ho\u1eb7c 35 + 2 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 t\u1ed5ng c\u1ee7a hai thu\u1eadt ng\u1eef.<\/p>\n<p dir=\"ltr\">b. Trong t\u00ednh to\u00e1n 18 + 50 = 68, 18 v\u00e0 50 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 thu\u1eadt ng\u1eef; 68 ho\u1eb7c 18 + 50 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 t\u1ed5ng c\u1ee7a hai thu\u1eadt ng\u1eef.<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_2_Trang_14_Toan_hoc_lop_2_Sach_giao_khoa\"><\/span>B\u00e0i 2, Trang 14, To\u00e1n h\u1ecdc l\u1edbp 2, S\u00e1ch gi\u00e1o khoa<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ec1 t\u00e0i:<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/6-so-hang-la-gi.png\" alt=\"\" width=\"100%\"><\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi:<\/p>\n<p dir=\"ltr\">M\u1ed9t. T\u1ed5ng c\u1ee7a c\u00e1c \u0111i\u1ec1u kho\u1ea3n 10 v\u00e0 5 l\u00e0 k\u1ebft qu\u1ea3 t\u1eeb vi\u1ec7c b\u1ed5 sung 10 c\u1ed9ng 5<\/p>\n<p dir=\"ltr\">Ch\u00fang t\u00f4i c\u00f3 10 + 5 = 15 v\u00ec v\u1eady t\u1ed5ng c\u1ee7a c\u00e1c \u0111i\u1ec1u kho\u1ea3n 10 v\u00e0 5 l\u00e0 15<\/p>\n<p dir=\"ltr\">b. T\u1ed5ng s\u1ed1 ti\u1ec1n c\u1ee7a 20 v\u00e0 30 l\u00e0 k\u1ebft qu\u1ea3 t\u1eeb vi\u1ec7c b\u1ed5 sung 20 c\u1ed9ng 30<\/p>\n<p dir=\"ltr\">Ch\u00fang t\u00f4i c\u00f3 20 + 30 = 50 v\u00ec v\u1eady t\u1ed5ng c\u1ee7a c\u00e1c \u0111i\u1ec1u kho\u1ea3n 20 v\u00e0 30 l\u00e0 50<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_3_Trang_14_Toan_hoc_lop_2_Sach_giao_khoa\"><\/span>B\u00e0i 3, Trang 14, To\u00e1n h\u1ecdc l\u1edbp 2, S\u00e1ch gi\u00e1o khoa<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ec1 t\u00e0i:<\/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\/7-so-hang-la-gi.png\" alt=\"\" width=\"100%\"><\/p>\n<p dir=\"ltr\">H\u01b0\u1edbng d\u1eabn:<\/p>\n<p dir=\"ltr\">M\u1ed9t. Nam: 3 + 5 = 8, 8 l\u00e0 t\u1ed5ng s\u1ed1 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp t\u1eeb hai thu\u1eadt ng\u1eef m\u00e0 b\u1ea1n nam \u0111\u00e3 th\u1ef1c hi\u1ec7n.<\/p>\n<p dir=\"ltr\">M\u1ed9t. Ph\u1ee5 n\u1eef: 10 + 40 = 50, 50 l\u00e0 t\u1ed5ng s\u1ed1 t\u1eeb hai thu\u1eadt ng\u1eef m\u00e0 b\u1ea1n nam \u0111\u00e3 th\u1ef1c hi\u1ec7n.<\/p>\n<p dir=\"ltr\">Xem th\u00eam:<\/p>\n<ol>\n<li dir=\"ltr\">Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math &#8211; \u1ee8ng d\u1ee5ng to\u00e1n h\u1ecdc b\u1eb1ng ti\u1ebfng Anh s\u1ed1 1 cho tr\u1ebb m\u1eabu gi\u00e1o &amp; tr\u01b0\u1eddng ti\u1ec3u h\u1ecdc<\/li>\n<li dir=\"ltr\">V\u00f9ng h\u00ecnh thang: C\u00f4ng th\u1ee9c, T\u00ednh to\u00e1n v\u00e0 B\u00e0i t\u1eadp v\u00ed d\u1ee5<\/li>\n<\/ol>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tom_tat_cac_dieu_khoan_cua_thuat_ngu_va_bo_sung_co_cau_tra_loi\"><\/span>T\u00f3m t\u1eaft c\u00e1c \u0111i\u1ec1u kho\u1ea3n c\u1ee7a thu\u1eadt ng\u1eef v\u00e0 b\u1ed5 sung (c\u00f3 c\u00e2u tr\u1ea3 l\u1eddi)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">B\u00e0i 1: \u0110\u1eb7t t\u00ednh to\u00e1n v\u00e0 t\u00ednh to\u00e1n<\/p>\n<p dir=\"ltr\">M\u1ed9t. 46 + 52<\/p>\n<p dir=\"ltr\">b. 135 + 265<\/p>\n<p dir=\"ltr\">c. 210 + 789<\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi: <\/p>\n<p dir=\"ltr\">M\u1ed9t. 98<\/p>\n<p dir=\"ltr\">b. 400<\/p>\n<p dir=\"ltr\">c. 999<\/p>\n<p dir=\"ltr\">B\u00e0i 2: LAN c\u00f3 12 qu\u1ea3 t\u00e1o, c\u00f3 15 qu\u1ea3 t\u00e1o. C\u00f3 bao nhi\u00eau qu\u1ea3 t\u00e1o?<\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi: 27 Apple<\/p>\n<p dir=\"ltr\">B\u00e0i 3: C\u00f3 7 con m\u00e8o tr\u1eafng v\u00e0 6 con m\u00e8o \u0111en tr\u00ean m\u00e1i nh\u00e0. C\u00f3 bao nhi\u00eau con m\u00e8o tr\u00ean m\u00e1i nh\u00e0?<\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi: 13 con m\u00e8o<\/p>\n<p dir=\"ltr\">B\u00e0i 4: Trong l\u1edbp h\u1ecdc, c\u00f3 15 sinh vi\u00ean nam v\u00e0 18 n\u1eef. T\u1ed5ng s\u1ed1 h\u1ecdc sinh trong l\u1edbp l\u00e0 bao nhi\u00eau?<\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi: 33 sinh vi\u00ean<\/p>\n<p dir=\"ltr\">B\u00e0i h\u1ecdc 5: T\u00ecm thu\u1eadt ng\u1eef c\u00f2n thi\u1ebfu trong t\u00ednh to\u00e1n<\/p>\n<p dir=\"ltr\">M\u1ed9t. &#8230;. + 34 = 100<\/p>\n<p dir=\"ltr\">b. 28 + &#8230; = 50<\/p>\n<p dir=\"ltr\">c. &#8230;. + 19 = 46<\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi: <\/p>\n<p dir=\"ltr\">M\u1ed9t. 66<\/p>\n<p dir=\"ltr\">b. 22<\/p>\n<p dir=\"ltr\">c. 27<\/p>\n<p dir=\"ltr\">B\u00e0i 6: T\u00ednh bi\u1ec3u th\u1ee9c<\/p>\n<p dir=\"ltr\">M\u1ed9t. 2 x 5 + 3 x 4<\/p>\n<p dir=\"ltr\">b. 6 x 3 + 2 x 7<\/p>\n<p dir=\"ltr\">c. 4 x 9 + 5 x 2<\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi:<\/p>\n<p dir=\"ltr\">M\u1ed9t. 22<\/p>\n<p dir=\"ltr\">b. 38<\/p>\n<p dir=\"ltr\">c. 46<\/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\/8-so-hang-la-gi.png\" alt=\"T\u00f3m t\u1eaft c\u00e1c l\u1edbp h\u1ecdc v\u00e0 b\u1ed5 sung. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<\/p>\n<p dir=\"ltr\">N\u00f3i t\u00f3m l\u1ea1i, b\u00e0i vi\u1ebft n\u00e0y \u0111\u00e3 tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi v\u1ec1 c\u00e1c \u0111i\u1ec1u kho\u1ea3n, v\u00e0 cung c\u1ea5p cho sinh vi\u00ean c\u00e1c thu\u1ed9c t\u00ednh v\u00e0 lo\u1ea1i v\u1ea5n \u0111\u1ec1 chung v\u1ec1 vi\u1ec7c b\u1ed5 sung. L\u01b0u b\u00e0i vi\u1ebft n\u00e0y v\u00e0 th\u01b0\u1eddng xuy\u00ean th\u1ef1c h\u00e0nh c\u00e1c b\u00e0i t\u1eadp to\u00e1n tr\u00ean \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng c\u1ee7a b\u1ea1n!<\/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>&#8220;Thu\u1eadt ng\u1eef l\u00e0 g\u00ec?&#8221; L\u00e0 m\u1ed9t trong nh\u1eefng c\u00e2u h\u1ecfi m\u00e0 nhi\u1ec1u ng\u01b0\u1eddi, \u0111\u1eb7c bi\u1ec7t l\u00e0 sinh vi\u00ean, th\u01b0\u1eddng h\u1ecfi khi t\u00ecm hi\u1ec3u v\u1ec1 to\u00e1n h\u1ecdc c\u01a1 b\u1ea3n. Hi\u1ec3u kh\u00e1i ni\u1ec7m n\u00e0y kh\u00f4ng ch\u1ec9 gi\u00fap b\u1ea1n l\u00e0m ch\u1ee7 ki\u1ebfn \u200b\u200bth\u1ee9c c\u1ee7a m\u00ecnh, m\u00e0 c\u00f2n l\u00e0 n\u1ec1n t\u1ea3ng \u0111\u1ec3 gi\u1ea3i quy\u1ebft nhi\u1ec1u lo\u1ea1i v\u1ea5n \u0111\u1ec1 li\u00ean&#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-14197","post","type-post","status-publish","format-standard","hentry","category-kien-thuc"],"_links":{"self":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/14197","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=14197"}],"version-history":[{"count":2,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/14197\/revisions"}],"predecessor-version":[{"id":17200,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/14197\/revisions\/17200"}],"wp:attachment":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/media?parent=14197"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/categories?post=14197"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/tags?post=14197"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}