{"id":14250,"date":"2025-06-07T10:30:31","date_gmt":"2025-06-07T03:30:31","guid":{"rendered":"https:\/\/www.ckconitsha.com\/vn\/?p=14250"},"modified":"2025-07-04T10:45:05","modified_gmt":"2025-07-04T03:45:05","slug":"huong-dan-cach-tinh-gia-tri-bieu-thuc-va-bai-tap-van-dung","status":"publish","type":"post","link":"https:\/\/www.ckconitsha.com\/vn\/huong-dan-cach-tinh-gia-tri-bieu-thuc-va-bai-tap-van-dung\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn c\u00e1ch t\u00ednh gi\u00e1 tr\u1ecb bi\u1ec3u th\u1ee9c v\u00e0 b\u00e0i t\u1eadp v\u1eadn d\u1ee5ng"},"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-cach-tinh-gia-tri-bieu-thuc-va-bai-tap-van-dung\/#Gia_tri_cua_bieu_thuc_la_gi\" >Gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c 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\/huong-dan-cach-tinh-gia-tri-bieu-thuc-va-bai-tap-van-dung\/#Huong_dan_ve_cach_tinh_gia_tri_bieu_thuc\" >H\u01b0\u1edbng d\u1eabn v\u1ec1 c\u00e1ch t\u00ednh gi\u00e1 tr\u1ecb bi\u1ec3u th\u1ee9c<\/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\/huong-dan-cach-tinh-gia-tri-bieu-thuc-va-bai-tap-van-dung\/#Giai_cac_bai_tap_ve_tinh_toan_gia_tri_cua_bieu_thuc_Trang_164_SGK_Lop_4\" >Gi\u1ea3i c\u00e1c b\u00e0i t\u1eadp v\u1ec1 t\u00ednh to\u00e1n gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c Trang 164 SGK L\u1edbp 4<\/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\/huong-dan-cach-tinh-gia-tri-bieu-thuc-va-bai-tap-van-dung\/#Bai_1_Trang_164_SGK_Lop_4\" >B\u00e0i 1 Trang 164 SGK L\u1edbp 4<\/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-cach-tinh-gia-tri-bieu-thuc-va-bai-tap-van-dung\/#Bai_2_Trang_164_SGK_Lop_4\" >B\u00e0i 2 Trang 164 SGK L\u1edbp 4<\/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-cach-tinh-gia-tri-bieu-thuc-va-bai-tap-van-dung\/#Bai_3_Trang_164_SGK_Lop_4\" >B\u00e0i 3 Trang 164 SGK L\u1edbp 4<\/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\/huong-dan-cach-tinh-gia-tri-bieu-thuc-va-bai-tap-van-dung\/#Bai_4_Trang_164_SGK_Lop_4\" >B\u00e0i 4 Trang 164 SGK L\u1edbp 4<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.ckconitsha.com\/vn\/huong-dan-cach-tinh-gia-tri-bieu-thuc-va-bai-tap-van-dung\/#Bai_5_Trang_164_SGK_Lop_4\" >B\u00e0i 5 Trang 164 SGK L\u1edbp 4<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.ckconitsha.com\/vn\/huong-dan-cach-tinh-gia-tri-bieu-thuc-va-bai-tap-van-dung\/#Tom_tat_mot_so_bai_tap_de_tinh_toan_gia_tri_cua_bieu_thuc_tu_dong\" >T\u00f3m t\u1eaft m\u1ed9t s\u1ed1 b\u00e0i t\u1eadp \u0111\u1ec3 t\u00ednh to\u00e1n gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c t\u1ef1 \u0111\u1ed9ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.ckconitsha.com\/vn\/huong-dan-cach-tinh-gia-tri-bieu-thuc-va-bai-tap-van-dung\/#Cach_day_tre_lam_cac_gia_tri_bieu_hien_mot_cach_hieu_qua\" >C\u00e1ch d\u1ea1y tr\u1ebb l\u00e0m c\u00e1c gi\u00e1 tr\u1ecb bi\u1ec3u hi\u1ec7n m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3<\/a><\/li><\/ul><\/nav><\/div>\n<\/p>\n<p>T\u00ednh to\u00e1n gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c l\u00e0 m\u1ed9t k\u1ef9 n\u0103ng quan tr\u1ecdng trong to\u00e1n h\u1ecdc n\u00f3i chung m\u00e0 b\u1ea5t k\u1ef3 h\u1ecdc sinh n\u00e0o c\u0169ng ph\u1ea3i th\u00e0nh th\u1ea1o. Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang t\u00f4i s\u1ebd kh\u00e1m ph\u00e1 c\u00e1ch t\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c v\u00e0 \u00e1p d\u1ee5ng n\u00f3 trong c\u00e1c b\u00e0i t\u1eadp ph\u1ed5 bi\u1ebfn. Kh\u00e1m ph\u00e1 ngay b\u00e2y gi\u1edd!<\/p>\n<p>                        Xem t\u1ea5t c\u1ea3<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Gia_tri_cua_bieu_thuc_la_gi\"><\/span>Gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c l\u00e0 g\u00ec? T\u00ednh to\u00e1n gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c \u0111\u01a1n gi\u1ea3n l\u00e0 c\u00e1ch ch\u00fang t\u00f4i th\u1ef1c hi\u1ec7n c\u00e1c t\u00ednh to\u00e1n nh\u01b0 b\u1ed5 sung, tr\u1eeb, nh\u00e2n, chia \u0111\u1ec3 t\u00ednh gi\u00e1 tr\u1ecb cu\u1ed1i c\u00f9ng c\u1ee7a bi\u1ec3u th\u1ee9c \u0111\u00f3. Bi\u1ec3u th\u1ee9c c\u00f3 th\u1ec3 ch\u1ee9a c\u00e1c s\u1ed1 v\u00e0 d\u1ea5u hi\u1ec7u to\u00e1n h\u1ecdc nh\u01b0 &#8220;+&#8221;, &#8220;-&#8220;, &#8220;x&#8221;, &#8220;:&#8221; ho\u1eb7c c\u00f3 th\u1ec3 ch\u1ee9a c\u00e1c ch\u1eef c\u00e1i bi\u1ec3u th\u1ecb b\u1ea5t k\u1ef3 s\u1ed1 n\u00e0o.<\/p>\n<p dir=\"ltr\">V\u00ed d\u1ee5:<\/p>\n<p dir=\"ltr\">Gi\u1ea3 s\u1eed ch\u00fang ta c\u00f3 bi\u1ec3u th\u1ee9c 2 x 3 + 5 &#8211; 1. <\/p>\n<p dir=\"ltr\">\u0110\u1ec3 t\u00ednh to\u00e1n gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c n\u00e0y, ch\u00fang t\u00f4i s\u1ebd th\u1ef1c hi\u1ec7n c\u00e1c ho\u1ea1t \u0111\u1ed9ng theo th\u1ee9 t\u1ef1: 2 x 3 = 6, sau \u0111\u00f3 6 + 5 = 11 v\u00e0 cu\u1ed1i c\u00f9ng l\u00e0 11 &#8211; 1 = 10. <\/p>\n<p dir=\"ltr\">V\u00ec v\u1eady, gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c l\u00e0 10.<\/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-tinh-gia-tri-bieu-thuc.png\" alt=\"T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">T\u00ednh to\u00e1n gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c l\u00e0 m\u1ed9t k\u1ef9 n\u0103ng quan tr\u1ecdng trong to\u00e1n h\u1ecdc, gi\u00fap ch\u00fang t\u00f4i gi\u1ea3i quy\u1ebft nhi\u1ec1u v\u1ea5n \u0111\u1ec1 th\u1ef1c t\u1ebf v\u00e0 hi\u1ec3u th\u00eam v\u1ec1 c\u00e1c kh\u00e1i ni\u1ec7m to\u00e1n h\u1ecdc. V\u00ec v\u1eady, \u0111\u1ec3 t\u00ednh to\u00e1n bi\u1ec3u th\u1ee9c ch\u00fang ta c\u1ea7n nh\u1edb nh\u1eefng nguy\u00ean t\u1eafc t\u00ednh to\u00e1n? B\u00e0i vi\u1ebft sau \u0111\u00e2y s\u1ebd tr\u1ea3 l\u1eddi b\u1ea1n c\u00e2u h\u1ecfi \u0111\u00f3 theo c\u00e1ch chi ti\u1ebft nh\u1ea5t.<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Huong_dan_ve_cach_tinh_gia_tri_bieu_thuc\"><\/span>H\u01b0\u1edbng d\u1eabn v\u1ec1 c\u00e1ch t\u00ednh gi\u00e1 tr\u1ecb bi\u1ec3u th\u1ee9c<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">\u0110\u1ec3 t\u00ednh to\u00e1n gi\u00e1 tr\u1ecb c\u1ee7a m\u1ed9t bi\u1ec3u th\u1ee9c, ch\u00fang ta c\u1ea7n \u00e1p d\u1ee5ng c\u00e1c quy t\u1eafc v\u00e0 tr\u1eadt t\u1ef1 th\u00edch h\u1ee3p. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c h\u01b0\u1edbng d\u1eabn v\u1ec1 c\u00e1ch t\u00ednh gi\u00e1 tr\u1ecb bi\u1ec3u th\u1ee9c \u0111\u01a1n gi\u1ea3n v\u00e0 d\u1ec5 hi\u1ec3u:<\/p>\n<p dir=\"ltr\">B\u01b0\u1edbc 1: \u0110\u1ecdc v\u00e0 hi\u1ec3u bi\u1ec3u th\u1ee9c<\/p>\n<p dir=\"ltr\">\u0110\u1ea7u ti\u00ean, ch\u00fang ta c\u1ea7n \u0111\u1ecdc v\u00e0 hi\u1ec3u bi\u1ec3u th\u1ee9c, x\u00e1c \u0111\u1ecbnh c\u00e1c t\u00ednh to\u00e1n v\u00e0 gi\u00e1 tr\u1ecb trong bi\u1ec3u th\u1ee9c \u0111\u00f3.<\/p>\n<p dir=\"ltr\">B\u01b0\u1edbc 2: Th\u1ef1c hi\u1ec7n t\u00ednh to\u00e1n trong ngo\u1eb7c \u0111\u01a1n<\/p>\n<p dir=\"ltr\">N\u1ebfu bi\u1ec3u th\u1ee9c c\u00f3 d\u1ea5u ngo\u1eb7c \u0111\u01a1n, ch\u00fang t\u00f4i th\u1ef1c hi\u1ec7n c\u00e1c t\u00ednh to\u00e1n trong d\u1ea5u ngo\u1eb7c \u0111\u01a1n tr\u01b0\u1edbc. \u0110i\u1ec1u n\u00e0y gi\u00fap \u0111\u1ea3m b\u1ea3o t\u00ednh ch\u00ednh x\u00e1c c\u1ee7a bi\u1ec3u th\u1ee9c.<\/p>\n<p dir=\"ltr\">B\u01b0\u1edbc 3: Th\u1ef1c hi\u1ec7n ph\u00e9p nh\u00e2n v\u00e0 ph\u00e2n chia \u0111\u1ea7u ti\u00ean<\/p>\n<p dir=\"ltr\">N\u1ebfu c\u00f3 ph\u00e9p nh\u00e2n v\u00e0 ph\u00e2n chia trong bi\u1ec3u th\u1ee9c, ch\u00fang t\u00f4i th\u1ef1c hi\u1ec7n c\u00e1c t\u00ednh to\u00e1n n\u00e0y tr\u01b0\u1edbc. \u0110i\u1ec1u n\u00e0y tu\u00e2n theo quy t\u1eafc c\u1ee7a &#8220;Nh\u00e2n &#8211; B\u1ed9 ph\u1eadn \u0111\u1ea7u ti\u00ean, c\u1ed9ng v\u1edbi &#8211; tr\u1eeb&#8221;.<\/p>\n<p dir=\"ltr\">B\u01b0\u1edbc 4: Th\u1ef1c hi\u1ec7n b\u1ed5 sung v\u00e0 tr\u1eeb<em> (sau khi nh\u00e2n v\u00e0 chia)<\/em><\/p>\n<p dir=\"ltr\">Sau khi th\u1ef1c hi\u1ec7n nh\u00e2n v\u00e0 chia, ti\u1ebfp t\u1ee5c th\u1ef1c hi\u1ec7n b\u1ed5 sung v\u00e0 tr\u1eeb t\u1eeb tr\u00e1i sang ph\u1ea3i.<\/p>\n<p dir=\"ltr\">B\u01b0\u1edbc 5: H\u00e3y nh\u1edb c\u00e1c thu\u1ed9c t\u00ednh quan tr\u1ecdng <\/p>\n<p dir=\"ltr\">Khi th\u1ef1c hi\u1ec7n vi\u1ec7c b\u1ed5 sung, nh\u00f3m c\u00e1c \u0111i\u1ec1u kho\u1ea3n tr\u1edf th\u00e0nh t\u1ed5ng c\u1ed9ng h\u00e0ng ch\u1ee5c v\u00e0 h\u00e0ng tr\u0103m ng\u01b0\u1eddi d\u1ec5 d\u00e0ng. S\u1eed d\u1ee5ng c\u00e1c thu\u1ed9c t\u00ednh giao ho\u00e1n, ch\u00fang ta c\u00f3 th\u1ec3 thay \u0111\u1ed5i c\u00e1c \u0111i\u1ec1u kho\u1ea3n c\u1ee7a thu\u1eadt ng\u1eef trong m\u1ed9t kho\u1ea3n ti\u1ec1n m\u00e0 kh\u00f4ng thay \u0111\u1ed5i k\u1ebft qu\u1ea3 c\u1ee7a s\u1ed1 ti\u1ec1n \u0111\u00f3.<\/p>\n<p dir=\"ltr\">B\u01b0\u1edbc 6: T\u00ednh t\u1eeb tr\u00e1i sang ph\u1ea3i <\/p>\n<p dir=\"ltr\">Th\u1ef1c hi\u1ec7n c\u00e1c t\u00ednh to\u00e1n theo th\u1ee9 t\u1ef1 t\u1eeb tr\u00e1i sang ph\u1ea3i, tu\u00e2n theo c\u00e1c quy t\u1eafc v\u00e0 thu\u1ed9c t\u00ednh \u0111\u01b0\u1ee3c \u0111\u1ec1 c\u1eadp \u1edf tr\u00ean.<\/p>\n<p dir=\"ltr\">B\u01b0\u1edbc 7: Ki\u1ec3m tra k\u1ebft qu\u1ea3 <\/p>\n<p dir=\"ltr\">Ki\u1ec3m tra k\u1ebft qu\u1ea3 t\u00ednh to\u00e1n \u0111\u1ec3 xem n\u00f3 l\u00e0 ch\u00ednh x\u00e1c v\u00e0 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u00e1y t\u00ednh ho\u1eb7c m\u00e1y t\u00ednh b\u1ecf t\u00fai \u0111\u1ec3 x\u00e1c nh\u1eadn.<\/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-tinh-gia-tri-bieu-thuc.png\" alt=\"H\u01b0\u1edbng d\u1eabn v\u1ec1 c\u00e1ch t\u00ednh gi\u00e1 tr\u1ecb bi\u1ec3u th\u1ee9c. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">V\u00ed d\u1ee5: T\u00ednh to\u00e1n [(4 + 5) x 3 &#8211; 2] \/ 5<\/p>\n<p dir=\"ltr\">H\u01b0\u1edbng d\u1eabn gi\u1ea3i quy\u1ebft:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ch\u00fang t\u00f4i t\u00ednh to\u00e1n: 4 + 5 = 9 -&gt; Bi\u1ec3u th\u1ee9c tr\u1edf th\u00e0nh [9 x 3 &#8211; 2] \/ 5<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ch\u00fang t\u00f4i t\u00ednh to\u00e1n: 9 x 3 = 27 -&gt; Bi\u1ec3u th\u1ee9c tr\u1edf th\u00e0nh [27 &#8211; 2] \/ 5<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ch\u00fang t\u00f4i t\u00ednh to\u00e1n: 27 &#8211; 2 = 25 -&gt; Bi\u1ec3u th\u1ee9c tr\u1edf th\u00e0nh 25\/5<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ch\u00fang t\u00f4i t\u00ednh to\u00e1n: 25\/5 = 5 <\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\" style=\"padding-left: 40px\">K\u1ebft qu\u1ea3 c\u1ee7a bi\u1ec3u th\u1ee9c l\u00e0 5, ho\u1eb7c [(4 + 5) x 3 &#8211; 2] \/ 5 = 5<\/p>\n<p dir=\"ltr\">H\u00e3y nh\u1edb ghi l\u1ea1i c\u00e1c quy t\u1eafc tr\u00ean, trong khi th\u1ef1c h\u00e0nh t\u00ednh to\u00e1n gi\u00e1 tr\u1ecb bi\u1ec3u th\u1ee9c m\u1ed9t c\u00e1ch th\u01b0\u1eddng xuy\u00ean \u0111\u1ec3 c\u1ea3i thi\u1ec7n k\u1ef9 n\u0103ng t\u00ednh to\u00e1n c\u1ee7a b\u1ea1n.<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Giai_cac_bai_tap_ve_tinh_toan_gia_tri_cua_bieu_thuc_Trang_164_SGK_Lop_4\"><\/span>Gi\u1ea3i c\u00e1c b\u00e0i t\u1eadp v\u1ec1 t\u00ednh to\u00e1n gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c Trang 164 SGK L\u1edbp 4<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">\u0110\u1ec3 gi\u00fap h\u1ecdc sinh nhanh ch\u00f3ng l\u00e0m quen v\u1edbi c\u00e1c t\u00ednh to\u00e1n c\u1ee7a gi\u00e1 tr\u1ecb bi\u1ec3u th\u1ee9c l\u1edbp 4, \u0111\u00e2y l\u00e0 h\u01b0\u1edbng d\u1eabn c\u1ee7a kh\u1ec9 cho c\u00e1c b\u00e0i t\u1eadp s\u00e1ch gi\u00e1o khoa.<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_1_Trang_164_SGK_Lop_4\"><\/span>B\u00e0i 1 Trang 164 SGK L\u1edbp 4<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ec1 t\u00e0i:<\/p>\n<p dir=\"ltr\">T\u00ednh c\u00e1c gi\u00e1 tr\u1ecb c\u1ee7a c\u00e1c bi\u1ec3u th\u1ee9c: M + N; M &#8211; n; m \u00d7 n; M: N, v\u1edbi:<\/p>\n<p dir=\"ltr\">M\u1ed9t. M = 952, n = 28<\/p>\n<p dir=\"ltr\">b. M = 2006, n = 17<\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi:<\/p>\n<p dir=\"ltr\">M\u1ed9t. N\u1ebfu m = 952, n = 28 th\u00ec:<\/p>\n<p dir=\"ltr\">M + N = 952 + 28 = 980<\/p>\n<p dir=\"ltr\">M &#8211; n = 952 &#8211; 28 = 924<\/p>\n<p dir=\"ltr\">M \u00d7 N = 952 \u00d7 28 = 26656<\/p>\n<p dir=\"ltr\">M: N = 952: 28 = 34<\/p>\n<p dir=\"ltr\">b. N\u1ebfu m = 2006, n = 17 th\u00ec: <\/p>\n<p dir=\"ltr\">M + N = 2006 + 17 = 2023<\/p>\n<p dir=\"ltr\">M &#8211; n = 2006 &#8211; 17 = 1989<\/p>\n<p dir=\"ltr\">M \u00d7 N = 2006 \u00d7 17 = 34102<\/p>\n<p dir=\"ltr\">M: N = 2006: 17 = 118<\/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-tinh-gia-tri-bieu-thuc.png\" alt=\"Gi\u1ea3i c\u00e1c b\u00e0i t\u1eadp v\u1ec1 t\u00ednh to\u00e1n gi\u00e1 tr\u1ecb bi\u1ec3u th\u1ee9c. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_2_Trang_164_SGK_Lop_4\"><\/span>B\u00e0i 2 Trang 164 SGK L\u1edbp 4<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ec1 t\u00e0i:<\/p>\n<p dir=\"ltr\">T\u00ednh to\u00e1n:<\/p>\n<p dir=\"ltr\">M\u1ed9t. <\/p>\n<p dir=\"ltr\">12054: (15 + 67)<\/p>\n<p dir=\"ltr\">29150 &#8211; 136 \u00d7 201<\/p>\n<p dir=\"ltr\">b. <\/p>\n<p dir=\"ltr\">9700: 100 + 36 \u00d7 12<\/p>\n<p dir=\"ltr\">(160 \u00d7 5 &#8211; 25 \u00d7 4): 4<\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi:<\/p>\n<p dir=\"ltr\">M\u1ed9t. <\/p>\n<p dir=\"ltr\">12054: (15 + 67) = 12054: 82 = 147<\/p>\n<p dir=\"ltr\">29150 &#8211; 136 \u00d7 201 = 29150 &#8211; 27336 = 1814<\/p>\n<p dir=\"ltr\">b. <\/p>\n<p dir=\"ltr\">9700: 100 + 36 \u00d7 12 = 97 + 432 = 529<\/p>\n<p dir=\"ltr\">(160 \u00d7 5 &#8211; 25 \u00d7 4): 4 = (800 &#8211; 100): 4 = 700: 4 = 175<\/p>\n<p dir=\"ltr\">\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_3_Trang_164_SGK_Lop_4\"><\/span>B\u00e0i 3 Trang 164 SGK L\u1edbp 4<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ec1 t\u00e0i:<\/p>\n<p dir=\"ltr\">M\u1ed9t. <\/p>\n<p dir=\"ltr\">36 \u00d7 25 \u00d7 4<\/p>\n<p dir=\"ltr\">18 \u00d7 24: 9<\/p>\n<p dir=\"ltr\">41 \u00d7 2 \u00d7 8 \u00d7 5<\/p>\n<p dir=\"ltr\">b. <\/p>\n<p dir=\"ltr\">108 \u00d7 (23 + 7)<\/p>\n<p dir=\"ltr\">215 \u00d7 86 + 215 \u00d7 14<\/p>\n<p dir=\"ltr\">53 \u00d7 128 &#8211; 43 \u00d7 128<\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi:<\/p>\n<p dir=\"ltr\">M\u1ed9t. <\/p>\n<p dir=\"ltr\">36 \u00d7 25 \u00d7 4 = 36 \u00d7 (25 \u00d7 4) = 36 \u00d7 100 = 3600<\/p>\n<p dir=\"ltr\">18 \u00d7 24: 9 = (18: 9) \u00d7 24 = 2 \u00d7 24 = 48<\/p>\n<p dir=\"ltr\">41 \u00d7 2 \u00d7 8 \u00d7 5 = (41 \u00d7 8) \u00d7 (2 \u00d7 5) = 328 \u00d7 10 = 3280<\/p>\n<p dir=\"ltr\">b. <\/p>\n<p dir=\"ltr\">108 \u00d7 (23 + 7) = 108 \u00d7 30 = 3240<\/p>\n<p dir=\"ltr\">215 \u00d7 86 + 215 \u00d7 14 = 215 \u00d7 (86 + 14) = 215 \u00d7 100 = 21500<\/p>\n<p dir=\"ltr\">53 \u00d7 128 &#8211; 43 \u00d7 128 = (53 &#8211; 43) \u00d7 128 = 10 \u00d7 128 = 1280<\/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-tinh-gia-tri-bieu-thuc.png\" alt=\"Gi\u1ea3i c\u00e1c b\u00e0i t\u1eadp v\u1ec1 t\u00ednh to\u00e1n gi\u00e1 tr\u1ecb bi\u1ec3u th\u1ee9c. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_4_Trang_164_SGK_Lop_4\"><\/span>B\u00e0i 4 Trang 164 SGK L\u1edbp 4<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ec1 t\u00e0i:<\/p>\n<p dir=\"ltr\">Tu\u1ea7n \u0111\u1ea7u ti\u00ean trong tu\u1ea7n \u0111\u00e3 b\u00e1n \u0111\u01b0\u1ee3c 319m v\u1ea3i, tu\u1ea7n t\u1edbi \u0111\u01b0\u1ee3c b\u00e1n nhi\u1ec1u h\u01a1n tu\u1ea7n \u0111\u1ea7u ti\u00ean c\u1ee7a 76m. H\u1ecfi trong hai tu\u1ea7n, trung b\u00ecnh, c\u00f3 bao nhi\u00eau m\u00e9t c\u1ee7a c\u1eeda h\u00e0ng b\u00e1n, bi\u1ebft r\u1eb1ng c\u1eeda h\u00e0ng m\u1edf c\u1eeda h\u00e0ng ng\u00e0y trong tu\u1ea7n?<\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi:<\/p>\n<p dir=\"ltr\">B\u1ea3n t\u00f3m t\u1eaft<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Tu\u1ea7n \u0111\u1ea7u ti\u00ean: v\u1ea3i 319m<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Tu\u1ea7n t\u1edbi: Nhi\u1ec1u h\u01a1n tu\u1ea7n \u0111\u1ea7u ti\u00ean 76m<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Trung b\u00ecnh m\u1ed7i ng\u00e0y: &#8230;. m?<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Tu\u1ea7n t\u1edbi, c\u1eeda h\u00e0ng b\u00e1n s\u1ed1 m\u00e9t v\u1ea3i:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">319 + 76 = 395 (m)<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">S\u1ed1 ng\u00e0y c\u1eeda h\u00e0ng m\u1edf c\u1eeda trong hai tu\u1ea7n:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">7 \u00d7 2 = 14 (ng\u00e0y)<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Trung b\u00ecnh, m\u1ed7i ng\u00e0y c\u1eeda h\u00e0ng b\u00e1n s\u1ed1 l\u01b0\u1ee3ng m\u00e9t v\u1ea3i:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">(319 + 395): 14 = 51 (m)<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Tr\u1ea3 l\u1eddi: v\u1ea3i 51m.<\/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=\"Bai_5_Trang_164_SGK_Lop_4\"><\/span>B\u00e0i 5 Trang 164 SGK L\u1edbp 4<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ec1 t\u00e0i:<\/p>\n<p dir=\"ltr\">M\u1ed9t h\u1ed9p b\u00e1nh c\u00f3 gi\u00e1 24000 VND v\u00e0 m\u1ed9t chai s\u1eefa cho 9800 vnd. Sau khi mua 2 h\u1ed9p b\u00e1nh v\u00e0 6 chai s\u1eefa, ng\u01b0\u1eddi m\u1eb9 v\u1eabn c\u00f2n 93 200 \u0111\u1ed3ng. H\u1ecfi bao nhi\u00eau ti\u1ec1n l\u00fac \u0111\u1ea7u?<\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi:<\/p>\n<p dir=\"ltr\">B\u1ea3n t\u00f3m t\u1eaft<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">1 h\u1ed9p b\u00e1nh: 24000 VND<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">1 chai s\u1eefa: 9800 VND<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Mua 2 h\u1ed9p b\u00e1nh v\u00e0 6 chai s\u1eefa: 93200 VND c\u00f2n l\u1ea1i<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ban \u0111\u1ea7u: &#8230; \u0110\u1ed3ng?<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">S\u1ed1 ti\u1ec1n \u0111\u1ec3 mua hai h\u1ed9p l\u00e0:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">24 000 \u00d7 2 = 48 000 (VND)<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">S\u1ed1 ti\u1ec1n \u0111\u1ec3 mua 6 chai s\u1eefa l\u00e0:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">9800 \u00d7 6 = 58 800 (VND)<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Mua 2 h\u1ed9p b\u00e1nh v\u00e0 6 chai s\u1eefa b\u1eb1ng ti\u1ec1n l\u00e0:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">48 000 + 58 800 = 106 800 (VND)<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">L\u01b0\u1ee3ng m\u1eb9 l\u00fac \u0111\u1ea7u l\u00e0:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">93 200 + 106 800 = 200 000 (VND)<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Tr\u1ea3 l\u1eddi: 200 000 vnd.<\/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-tinh-gia-tri-bieu-thuc.png\" alt=\"Gi\u1ea3i c\u00e1c b\u00e0i t\u1eadp v\u1ec1 t\u00ednh to\u00e1n gi\u00e1 tr\u1ecb bi\u1ec3u th\u1ee9c. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tom_tat_mot_so_bai_tap_de_tinh_toan_gia_tri_cua_bieu_thuc_tu_dong\"><\/span>T\u00f3m t\u1eaft m\u1ed9t s\u1ed1 b\u00e0i t\u1eadp \u0111\u1ec3 t\u00ednh to\u00e1n gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c t\u1ef1 \u0111\u1ed9ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">B\u00e0i 1: T\u00ednh c\u00e1c gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c: A + B; A &#8211; B; AXB; A: B, v\u1edbi:<\/p>\n<p dir=\"ltr\">M\u1ed9t. A = 25, b = 5<\/p>\n<p dir=\"ltr\">b. A = 18, b = 3<\/p>\n<p dir=\"ltr\">B\u00e0i 2: T\u00ednh to\u00e1n:<\/p>\n<p dir=\"ltr\">M\u1ed9t. 84 x (7 + 13)<\/p>\n<p dir=\"ltr\">b. 36: (6 &#8211; 2)<\/p>\n<p dir=\"ltr\">B\u00e0i 3: T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c sau:<\/p>\n<p dir=\"ltr\">M\u1ed9t. 54 x 3 + 25 x 2<\/p>\n<p dir=\"ltr\">b. 152 &#8211; (12 x 4)<\/p>\n<p dir=\"ltr\">B\u00e0i h\u1ecdc 4: Trung b\u00ecnh, m\u1ed9t sinh vi\u00ean \u0111\u1ecdc 25 trang s\u00e1ch trong 3 ng\u00e0y \u0111\u1ea7u ti\u00ean trong tu\u1ea7n v\u00e0 32 trang s\u00e1ch trong 4 ng\u00e0y sau \u0111\u00f3. Trung b\u00ecnh, c\u00f3 bao nhi\u00eau trang s\u00e1ch \u0111\u01b0\u1ee3c \u0111\u1ecdc m\u1ed7i ng\u00e0y?<\/p>\n<p dir=\"ltr\">B\u00e0i 5: M\u1ed9t h\u1ed9p b\u00fat c\u00f3 gi\u00e1 25000 VND v\u00e0 gi\u00e1 m\u00e1y t\u00ednh x\u00e1ch tay 8000 \u0111\u1ed3ng. Sau khi mua 3 h\u1ed9p b\u00fat v\u00e0 5 m\u00e1y t\u00ednh x\u00e1ch tay, ng\u01b0\u1eddi m\u1eb9 v\u1eabn 129000 \u0111\u1ed3ng. H\u1ecfi bao nhi\u00eau ti\u1ec1n l\u00fac \u0111\u1ea7u?<\/p>\n<p dir=\"ltr\">B\u00e0i 6: M\u1ed9t c\u00f4ng nh\u00e2n l\u00e0m vi\u1ec7c 8 gi\u1edd m\u1ed9t ng\u00e0y, ti\u1ec1n l\u01b0\u01a1ng m\u1ed7i gi\u1edd l\u00e0 VND 40000. H\u1ecfi con ng\u01b0\u1eddi c\u00f4ng nh\u00e2n s\u1ebd nh\u1eadn \u0111\u01b0\u1ee3c bao nhi\u00eau ti\u1ec1n sau 5 ng\u00e0y l\u00e0m vi\u1ec7c?<\/p>\n<p dir=\"ltr\">B\u00e0i 7: T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c sau:<\/p>\n<p dir=\"ltr\">M\u1ed9t. 75 + (25 &#8211; 10) x 2<\/p>\n<p dir=\"ltr\">b. 180: (6 x 2) + 5<\/p>\n<p dir=\"ltr\">B\u00e0i 8: M\u1ed9t chi\u1ebfc xe bu\u00fdt ch\u1ea1y 120 km v\u00e0o ng\u00e0y \u0111\u1ea7u ti\u00ean v\u00e0 150 km v\u00e0o ng\u00e0y th\u1ee9 hai. T\u00ednh t\u1ed5ng kho\u1ea3ng c\u00e1ch m\u00e0 xe bu\u00fdt \u0111\u00e3 ch\u1ea1y trong 2 ng\u00e0y.<\/p>\n<p dir=\"ltr\">B\u00e0i 9: Gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 sau:<\/p>\n<p dir=\"ltr\">M\u1ed9t s\u1ed1 3 l\u1ea7n s\u1ed1 5 b\u1eb1ng 30. T\u00ecm s\u1ed1 \u0111\u00f3.<\/p>\n<p dir=\"ltr\">B\u00e0i 10: T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c sau:<\/p>\n<p dir=\"ltr\">M\u1ed9t. 15 x 3 &#8211; 10: 2<\/p>\n<p dir=\"ltr\">b. 120: (6 + 2) x 5<\/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\">T\u1ed5ng quan v\u1ec1 c\u00e1c quy t\u1eafc nh\u1eadn d\u1ea1ng v\u00e0 b\u00e0i t\u1eadp v\u1ec1 c\u00e1c d\u1ea5u hi\u1ec7u ph\u00e2n chia cho 11<\/li>\n<\/ol>\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-tinh-gia-tri-bieu-thuc.png\" alt=\"T\u00f3m t\u1eaft m\u1ed9t s\u1ed1 b\u00e0i t\u1eadp \u0111\u1ec3 t\u00ednh to\u00e1n gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c t\u1ef1 \u0111\u1ed9ng. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cach_day_tre_lam_cac_gia_tri_bieu_hien_mot_cach_hieu_qua\"><\/span>C\u00e1ch d\u1ea1y tr\u1ebb l\u00e0m c\u00e1c gi\u00e1 tr\u1ecb bi\u1ec3u hi\u1ec7n m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">D\u1ea1y tr\u1ebb t\u00ednh to\u00e1n gi\u00e1 tr\u1ecb c\u1ee7a c\u00e1c bi\u1ec3u th\u1ee9c c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n hi\u1ec7u qu\u1ea3 h\u01a1n b\u1eb1ng c\u00e1ch \u00e1p d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3ng d\u1ea1y th\u00fa v\u1ecb v\u00e0 g\u1ea7n g\u0169i. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 g\u1ee3i \u00fd cho b\u1ea1n:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Gi\u1ea3i th\u00edch \u00fd ngh\u0129a c\u1ee7a bi\u1ec3u th\u1ee9c: Gi\u1edbi thi\u1ec7u kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n v\u1ec1 bi\u1ec3u th\u1ee9c v\u00e0 \u00fd ngh\u0129a c\u1ee7a n\u00f3 trong th\u1ef1c t\u1ebf. Gi\u1ea3i th\u00edch r\u00f5 r\u00e0ng c\u00e1ch t\u00ednh to\u00e1n \u0111\u1ec3 t\u00ednh gi\u00e1 tr\u1ecb cu\u1ed1i c\u00f9ng.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">S\u1eed d\u1ee5ng c\u00e1c v\u00ed d\u1ee5 th\u1ef1c t\u1ebf: S\u1eed d\u1ee5ng c\u00e1c v\u00ed d\u1ee5 t\u1eeb cu\u1ed9c s\u1ed1ng h\u00e0ng ng\u00e0y \u0111\u1ec3 minh h\u1ecda vi\u1ec7c t\u00ednh to\u00e1n gi\u00e1 tr\u1ecb bi\u1ec3u th\u1ee9c. V\u00ed d\u1ee5, mua th\u1ef1c ph\u1ea9m, t\u00ednh to\u00e1n h\u00f3a \u0111\u01a1n ti\u1ec1n \u0111i\u1ec7n, t\u00ednh to\u00e1n qu\u00e0 t\u1eb7ng, &#8230;<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ban \u0111\u1ea7u b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng h\u1ecdc t\u1eadp h\u00ecnh \u1ea3nh: Tr\u01b0\u1edbc khi ti\u1ebfp t\u1ee5c v\u1edbi c\u00e1c bi\u1ec3u th\u1ee9c tr\u1eebu t\u01b0\u1ee3ng, h\u00e3y s\u1eed d\u1ee5ng h\u00ecnh \u1ea3nh, \u0111\u1ed1i t\u01b0\u1ee3ng ho\u1eb7c tr\u1ee9ng \u0111\u1ec3 gi\u00fap h\u00ecnh dung c\u00e1c t\u00ednh to\u00e1n.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">S\u1eed d\u1ee5ng c\u00e1c tr\u00f2 ch\u01a1i v\u00e0 th\u1eed th\u00e1ch: S\u1eed d\u1ee5ng tr\u00f2 ch\u01a1i, c\u00e2u \u0111\u1ed1 ho\u1eb7c th\u00e1ch th\u1ee9c gi\u00e1 tr\u1ecb c\u1ee7a c\u00e1c bi\u1ec3u th\u1ee9c \u0111\u1ec3 gi\u1eef cho tr\u1ebb \u0111\u1ed9ng n\u00e3o v\u00e0 th\u00fa v\u1ecb h\u01a1n.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">D\u1ea7n d\u1ea7n ph\u00e1t tri\u1ec3n: B\u1eaft \u0111\u1ea7u t\u1eeb c\u00e1c b\u00e0i t\u1eadp \u0111\u01a1n gi\u1ea3n, d\u1ea7n d\u1ea7n c\u1ea3i thi\u1ec7n kh\u00f3 kh\u0103n \u0111\u1ec3 gi\u00fap tr\u1ebb x\u00e2y d\u1ef1ng ki\u1ebfn \u200b\u200bth\u1ee9c v\u00e0 k\u1ef9 n\u0103ng t\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Gi\u1ea3i th\u00edch c\u00e1c l\u1ed7i ph\u1ed5 bi\u1ebfn: N\u1ebfu con b\u1ea1n m\u1eafc l\u1ed7i ho\u1eb7c l\u1ed7i ph\u1ed5 bi\u1ebfn, h\u00e3y gi\u1ea3i th\u00edch cho con b\u1ea1n \u0111\u1ec3 hi\u1ec3u l\u00fd do v\u00e0 l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 tr\u00e1nh l\u1ed7i \u0111\u00f3 trong t\u01b0\u01a1ng lai.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">S\u1eed d\u1ee5ng ph\u1ea7n m\u1ec1m to\u00e1n h\u1ecdc: Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math l\u00e0 m\u1ed9t trong nh\u1eefng \u1ee9ng d\u1ee5ng to\u00e1n h\u1ecdc \u0111\u00e1ng tin c\u1eady nh\u1ea5t \u1edf Vi\u1ec7t Nam. Ph\u1ea7n m\u1ec1m h\u1ee9a h\u1eb9n s\u1ebd gi\u00fap tr\u1ebb ph\u00e1t tri\u1ec3n t\u01b0 duy logic v\u00e0 t\u01b0 duy ng\u00f4n ng\u1eef khi h\u1ecdc to\u00e1n b\u1eb1ng ti\u1ebfng Anh. \u0110\u1ed3ng th\u1eddi, n\u1ed9i dung b\u00e0i h\u1ecdc \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng d\u1ef1a tr\u00ean ch\u01b0\u01a1ng tr\u00ecnh gi\u00e1o d\u1ee5c chung m\u1edbi, gi\u00fap \u0111\u1ea3m b\u1ea3o l\u01b0\u1ee3ng ki\u1ebfn \u200b\u200bth\u1ee9c m\u1edbi nh\u1ea5t v\u00e0 m\u1edbi nh\u1ea5t.<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">\u0110\u0103ng k\u00fd t\u00e0i kho\u1ea3n c\u1ee7a b\u1ea1n ngay t\u1ea1i \u0111\u00e2y \u0111\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c gi\u1ea3m gi\u00e1 t\u1edbi 40% v\u00e0 t\u00e0i li\u1ec7u h\u1ecdc t\u1eadp mi\u1ec5n ph\u00ed!<\/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-tinh-gia-tri-bieu-thuc.jpg\" alt=\"Shining Home - Gia \u0111\u00ecnh Anh Ng\u1eef Math - \u1ee8ng d\u1ee5ng to\u00e1n h\u1ecdc b\u1eb1ng ti\u1ebfng Anh s\u1ed1 1 cho tr\u1ebb m\u1eabu gi\u00e1o &amp; tr\u1ebb em ti\u1ec3u h\u1ecdc. (\u1ea2nh: Kh\u1ec9)\" width=\"100%\"><\/p>\n<\/p>\n<p dir=\"ltr\">H\u00e3y nh\u1edb r\u1eb1ng, khuy\u1ebfn kh\u00edch v\u00e0 khuy\u1ebfn kh\u00edch l\u00e0 nh\u1eefng y\u1ebfu t\u1ed1 quan tr\u1ecdng quy\u1ebft \u0111\u1ecbnh li\u1ec7u tr\u1ebb em c\u00f3 y\u00eau m\u00f4n to\u00e1n hay kh\u00f4ng. Hy v\u1ecdng r\u1eb1ng ki\u1ebfn \u200b\u200bth\u1ee9c m\u00e0 kh\u1ec9 chia s\u1ebb \u1edf tr\u00ean s\u1ebd gi\u00fap tr\u1ebb em khu\u1ea5t ph\u1ee5c gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c th\u00e0nh c\u00f4ng.<\/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>T\u00ednh to\u00e1n gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c l\u00e0 m\u1ed9t k\u1ef9 n\u0103ng quan tr\u1ecdng trong to\u00e1n h\u1ecdc n\u00f3i chung m\u00e0 b\u1ea5t k\u1ef3 h\u1ecdc sinh n\u00e0o c\u0169ng ph\u1ea3i th\u00e0nh th\u1ea1o. Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang t\u00f4i s\u1ebd kh\u00e1m ph\u00e1 c\u00e1ch t\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c v\u00e0 \u00e1p d\u1ee5ng n\u00f3 trong c\u00e1c b\u00e0i t\u1eadp ph\u1ed5 bi\u1ebfn. Kh\u00e1m&#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-14250","post","type-post","status-publish","format-standard","hentry","category-kien-thuc"],"_links":{"self":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/14250","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=14250"}],"version-history":[{"count":2,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/14250\/revisions"}],"predecessor-version":[{"id":17131,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/14250\/revisions\/17131"}],"wp:attachment":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/media?parent=14250"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/categories?post=14250"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/tags?post=14250"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}