{"id":25582,"date":"2021-12-24T17:23:54","date_gmt":"2021-12-24T10:23:54","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=25582"},"modified":"2021-12-24T17:23:55","modified_gmt":"2021-12-24T10:23:55","slug":"bai-so-28-do-vui-luyen-tri-thong-minh","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/bai-so-28-do-vui-luyen-tri-thong-minh\/","title":{"rendered":"B\u00c0I S\u1ed0 28 – \u0110\u1ed1 vui luy\u1ec7n tr\u00ed th\u00f4ng minh"},"content":{"rendered":"

<\/a>C\u00c2U 1:<\/h3>\n

M\u1ed9t ng\u01b0\u1eddi qu\u1ea3n l\u00fd trong s\u1edf th\u00fa cho c\u00e1c con v\u1eadt \u0103n m\u1ed7i bu\u1ed5i s\u00e1ng, anh ta c\u00f3 th\u1eddi kh\u00f3a bi\u1ec3u ri\u00eang.<\/p>\n

B\u1ea1n c\u00f3 th\u1ec3 cho bi\u1ebft th\u1ee9 t\u1ef1 con n\u00e0o \u0111\u01b0\u1ee3c \u0103n tr\u01b0\u1edbc hay kh\u00f4ng n\u1ebfu:<\/p>\n

    \n
  1. Con h\u01b0\u01a1u cao c\u1ed5 \u0111\u00e3 \u0111\u01b0\u1ee3c cho \u0103n tr\u01b0\u1edbc con ng\u1ef1a v\u1eb1n, nh\u01b0ng sau con kh\u1ec9.<\/li>\n
  2. Con g\u1ea5u th\u00ec \u0111\u01b0\u1ee3c \u0103n tr\u01b0\u1edbc con kh\u1ec9.<\/li>\n
  3. Con s\u01b0 t\u1eed th\u00ec \u0111\u01b0\u1ee3c \u0103n sau con ng\u1ef1a v\u1eb1n.<\/li>\n<\/ol>\n

    V\u00e0 c\u00f3 nh\u1eefng con v\u1eadt nh\u01b0 sau: con g\u1ea5u, con h\u01b0\u01a1u cao c\u1ed5, con s\u01b0 t\u1eed, con kh\u1ec9 v\u00e0 con ng\u1ef1a v\u1eb1n.<\/p>\n

    Th\u1eddi kh\u00f3a bi\u1ec3u l\u00e0: 6:30, 6:45, 7:00, 7:15, 7:30<\/p>\n

    <\/a>C\u00c2U 2:<\/h3>\n

    M\u1ed9t con c\u1ed9ng m\u1ed9t con th\u00ec \u0111\u01b0\u1ee3c 1 con, 2 con c\u1ed9ng v\u1edbi 5 con c\u0169ng ra 1 con. H\u1ecfi con \u0111\u00f3 l\u00e0 con g\u00ec?<\/p>\n

    <\/a>C\u00c2U 3:<\/h3>\n

    V\u1eeba ch\u01a1i v\u1eeba h\u1ecdc<\/p>\n

    3 \u00f4 h\u00e0ng d\u1ecdc<\/p>\n

    3 \u00f4 h\u00e0ng ngang<\/p>\n

    C\u1ed9ng cho r\u00f5 r\u00e0ng<\/p>\n

    3 \u00f4 \u0111\u01b0\u1eddng ch\u00e9o<\/p>\n

    C\u1ed9ng sao cho kh\u00e9o<\/p>\n

    K\u1ebbo tr\u1eadt k\u1ebbo sai<\/p>\n

    Thi ai h\u01a1n ai<\/p>\n

    T\u1ed5ng ra b\u1eb1ng m\u1ea5y<\/p>\n

    \u0110\u00e2y thi v\u1edbi \u1ea5y<\/p>\n

    Em th\u00e1ch \u0111\u1ed1 anh<\/p>\n

    Tay l\u1eb9 mi\u1ec7ng lanh<\/p>\n

    H\u00f4 nhanh \u0111\u00e1p s\u1ed1.<\/p>\n\n\n\n\n\n
    159<\/td>\n164<\/td>\n157<\/td>\n<\/tr>\n
    158<\/td>\n160<\/td>\n162<\/td>\n<\/tr>\n
    163<\/td>\n156<\/td>\n161<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    H\u01af\u1edaNG D\u1eaaN – B\u00c0I GI\u1ea2I – \u0110\u00c1P S\u1ed0<\/h1>\n

    <\/a>B\u00c0I S\u1ed0 28<\/h2>\n

    <\/a>C\u00c2U 1:<\/h3>\n

    B\u00e0i gi\u1ea3i:<\/p>\n

    – 6 : 30: g\u1ea5u<\/p>\n

    – 6 : 45: kh\u1ec9<\/p>\n

    – 7 : 00: h\u01b0\u01a1u cao c\u1ed5<\/p>\n

    – 7 : 15: ng\u1ef1a<\/p>\n

    – 7 : 30: s\u01b0 t\u1eed.<\/p>\n

    <\/a>C\u00c2U 2:<\/h3>\n

    \u0110\u00e1p s\u1ed1: con s\u1ed1 0.<\/p>\n

    <\/a>C\u00c2U 3:<\/h3>\n

    B\u00e0i gi\u1ea3i:<\/p>\n

    1\/ 3 \u00f4 h\u00e0ng d\u1ecdc<\/p>\n

    159 + 158 + 163 = 480<\/p>\n

    164 + 160 + 156 = 480<\/p>\n

    157 + 162 + 161 = 480<\/p>\n

    2\/ 3 \u00f4 h\u00e0ng ngang<\/p>\n

    159 + 164 + 157 = 480<\/p>\n

    158 + 160 + 162 = 480<\/p>\n

    163 + 156 + 161 = 480<\/p>\n

    3\/ 3 \u00f4 \u0111\u01b0\u1eddng ch\u00e9o<\/p>\n

    159 + 160 + 161 = 480<\/p>\n

    157 + 160 + 163 = 480<\/p>\n","protected":false},"excerpt":{"rendered":"

    C\u00c2U 1: M\u1ed9t ng\u01b0\u1eddi qu\u1ea3n l\u00fd trong s\u1edf th\u00fa cho c\u00e1c con v\u1eadt \u0103n m\u1ed7i bu\u1ed5i s\u00e1ng, anh ta c\u00f3 th\u1eddi kh\u00f3a bi\u1ec3u ri\u00eang. B\u1ea1n c\u00f3 th\u1ec3 cho bi\u1ebft th\u1ee9 t\u1ef1 con n\u00e0o \u0111\u01b0\u1ee3c \u0103n tr\u01b0\u1edbc hay kh\u00f4ng n\u1ebfu: Con h\u01b0\u01a1u cao c\u1ed5 \u0111\u00e3 \u0111\u01b0\u1ee3c cho \u0103n tr\u01b0\u1edbc con ng\u1ef1a v\u1eb1n, nh\u01b0ng sau con kh\u1ec9. […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[47],"tags":[],"class_list":["post-25582","post","type-post","status-publish","format-standard","hentry","category-do-vui"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/25582","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=25582"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/25582\/revisions"}],"predecessor-version":[{"id":25583,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/25582\/revisions\/25583"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=25582"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=25582"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=25582"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}