C\u1ea7u k\u00e8o l\u00f4 \u0111\u1ec1 v\u00e0 c\u00e1c c\u1eb7p l\u00f4 hay v\u1ec1 c\u00f9ng nhau l\u00e0 m\u1ed9t trong nh\u1eefng v\u1ea5n \u0111\u1ec1 \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u ng\u01b0\u1eddi quan t\u00e2m trong khi ch\u01a1i l\u00f4 \u0111\u1ec1, \u0111\u1ec3 t\u00ecm hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 \u0111i\u1ec1u n\u00e0y, d\u01b0\u1edbi \u0111\u00e2y ch\u00fang t\u00f4i s\u1ebd cung c\u1ea5p cho ng\u01b0\u1eddi ch\u01a1i nh\u1eefng th\u00f4ng tin v\u1ec1 c\u1ea7u k\u00e8o x\u1ed5 s\u1ed1 hi\u1ec7n nay.<\/p>\n
C\u1ea7u k\u00e8o l\u00f4 \u0111\u1ec1 MB v\u00e0 b\u1ea1c nh\u1edb c\u00e1c c\u1eb7p l\u00f4 hay v\u1ec1 c\u00f9ng nhau ch\u00ednh x\u00e1c nh\u1ea5t.<\/p>\n
1. C\u1ea7u k\u00e8o l\u00f4 \u0111\u1ec1 l\u00e0 g\u00ec?<\/h2>\na. \u0110\u1ecbnh ngh\u0129a v\u1ec1 so k\u00e8o:<\/h3>\n
Nh\u01b0 c\u00e1c b\u1ea1n \u0111\u00e3 bi\u1ebft so k\u00e8o l\u00e0 m\u1ed9t thu\u1eadt ng\u1eef \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1 \u0111\u1ed9, c\u00e1 c\u01b0\u1ee3c thu\u1ed9c c\u00e1c tr\u00f2 ch\u01a1i x\u00e1c su\u1ea5t nh\u01b0 b\u00f3ng \u0111\u00e1, \u0111ua ng\u1ef1a,\u2026 hay x\u1ed5 s\u1ed1 l\u00f4 \u0111\u1ec1. Ng\u01b0\u1eddi ch\u01a1i s\u1ebd \u0111\u1eb7t c\u01b0\u1ee3c v\u00e0o m\u1ed9t c\u1eeda n\u00e0o \u0111\u00f3 v\u1edbi m\u1ed9t s\u1ed1 ti\u1ec1n t\u01b0\u01a1ng \u1ee9ng, nh\u01b0 v\u1eady d\u1ef1a theo t\u1ef7 l\u1ec7 k\u00e8o c\u1ee7a c\u1eeda \u0111\u00f3 v\u1edbi c\u1eeda kh\u00e1c, n\u1ebfu ng\u01b0\u1eddi ch\u01a1i th\u1eafng s\u1ebd \u0111\u01b0\u1ee3c s\u1ed1 ti\u1ec1n t\u1ef7 l\u1ec7 n\u00e0y nh\u00e2n v\u1edbi v\u1ed1n ban \u0111\u1ea7u, n\u1ebfu thua th\u00ec s\u1ebd m\u1ea5t s\u1ed1 ti\u1ec1n \u0111\u1eb7c c\u01b0\u1ee3c.<\/p>\n
VD: B\u1ea1n c\u00e1 \u0111\u1ed9 b\u00f3ng \u0111\u00e1 ch\u1eb3ng h\u1ea1n, b\u1ea1n \u0111\u1eb7t c\u01b0\u1ee3c k\u1ebft qu\u1ea3 l\u00e0 1-0 v\u1edbi s\u1ed1 ti\u1ec1n l\u00e0 A, s\u1ed1 ng\u01b0\u1eddi \u0111\u1eb7t c\u1eeda 1-0 so v\u1edbi s\u1ed1 ng\u01b0\u1eddi \u0111\u1eb7t h\u00f2a t\u1ef7 l\u1ec7 l\u00e0 1:2, nh\u01b0 v\u1eady, n\u1ebfu b\u1ea1n \u0111o\u00e1n \u0111\u00fang th\u00ec s\u1ebd \u0111\u01b0\u1ee3c Ax2 s\u1ed1 ti\u1ec1n \u0111\u1eb7t.<\/p>\n
b. C\u1ea7u k\u00e8o l\u00f4 \u0111\u1ec1<\/h3>\n
C\u0169ng gi\u1ed1ng nh\u01b0 tr\u00ean, \u0111\u1ed1i v\u1edbi l\u00f4 \u0111\u1ec1 th\u00ec c\u1ea7u k\u00e8o n\u00e0y s\u1ebd c\u1ed1 \u0111\u1ecbnh h\u01a1n, v\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u1eb7t c\u01b0\u1ee3c c\u1ee7a ng\u01b0\u1eddi ch\u01a1i \u0111\u00f3 l\u00e0 nh\u00e0 c\u00e1i.<\/p>\n
\u2013 C\u1ea7u k\u00e8o \u0111\u1ec1: Ng\u01b0\u1eddi ch\u01a1i \u0111\u1eb7t ti\u1ec1n cho m\u1ed9t s\u1ed1 d\u1ef1a v\u00e0o t\u00ednh to\u00e1n ra m\u1ed9t s\u1ed1 n\u00e0o \u0111\u00f3 \u0111\u1eb7t v\u1ec1 \u0111\u1ec1, n\u1ebfu b\u1ea1n th\u1eafng s\u1ebd s\u1ebd \u0111\u01b0\u1ee3c 70 l\u1ea7n s\u1ed1 ti\u1ec1n \u0111\u1eb7t c\u01b0\u1ee3c.<\/p>\n
\u2013 C\u1ea7u k\u00e8o l\u00f4: Ng\u01b0\u1eddi ch\u01a1i ch\u1ecdn m\u1ed9t hay nhi\u1ec1u s\u1ed1 \u0111\u1ec3 l\u00e0m k\u00e8o \u0111\u1eb7t c\u01b0\u1ee3c, m\u1ed7i s\u1ed1 \u0111\u00e1nh t\u1ed1i thi\u1ec3u l\u00e0 1 \u0111i\u1ec3m t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi 23.000 \u0111\u1ed3ng, n\u1ebfu ng\u01b0\u1eddi ch\u01a1i th\u1eafng s\u1ebd \u0111\u01b0\u1ee3c 70.000 \u0111\u1ed3ng ti\u1ec1n th\u01b0\u1edfng.<\/p>\n
2. C\u1eb7p l\u00f4 hay v\u1ec1 c\u00f9ng nhau mi\u1ec1n b\u1eafc ch\u00ednh x\u00e1c nh\u1ea5t<\/h2>\n
<\/p>\n
C\u00e1c c\u1eb7p l\u00f4 hay v\u1ec1 c\u00f9ng nhau mi\u1ec1n b\u1eafc \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n d\u1ef1a tr\u00ean kinh nghi\u1ec7m c\u1ee7a nh\u1eefng ng\u01b0\u1eddi ch\u01a1i tr\u01b0\u1edbc \u0111\u00e2y, t\u1eeb \u0111\u00f3 t\u00ecm c\u1ea7u l\u00f4 b\u1ea1c nh\u1edb v\u1edbi x\u00e1c su\u1ea5t cao, t\u0103ng t\u1ef7 l\u1ec7 tr\u00fang k\u00e8o l\u00f4 \u0111\u1ec1 c\u1ee7a ng\u01b0\u1eddi ch\u01a1i, c\u1ee5 th\u1ec3 ph\u01b0\u01a1ng ph\u00e1p s\u1ebd \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n
a. C\u1ea7u l\u00f4 Mb ch\u00ednh x\u00e1c hay v\u1ec1 k\u00e8m nhau:<\/h3>\n
\u2013 C\u1eb7p l\u00f4 373 hay v\u1ec1 k\u00e8m 010, n\u1ebfu h\u00f4m hay ra 1 c\u1eb7p th\u00ec ng\u00e0y mai x\u00e1c su\u1ea5t ra c\u1eb7p c\u00f2n l\u1ea1i l\u00ean t\u1edbi 90%.<\/p>\n
\u2013 C\u1eb7p 25 \u2013 52 hay \u0111i k\u00e8m v\u1edbi l\u00f4 22, nh\u00ecn chung th\u00ec c\u1ea7u n\u00e0y c\u00f3 l\u00fac \u0111\u00fang l\u00fac kh\u00f4ng chu\u1ea9n, do v\u1eady anh ch\u1ecb em n\u00ean k\u1ebft h\u1ee3p v\u1edbi c\u00e1c kh\u00e1c \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u1ef7 l\u1ec7 soi c\u1ea7u l\u00f4 b\u1ea1ch th\u1ee7 tr\u00fang.<\/p>\n
\u2013 C\u1ea7u 76 th\u01b0\u1eddng \u0111i k\u00e8m v\u1edbi c\u1ea7u l\u00f4 47.<\/p>\n
\u2013 C\u1ea7u l\u00f4 11 hay v\u1ec1 k\u00e8m v\u1edbi c\u1ea7u l\u00f4 44.<\/p>\n
\u2013 C\u1ea7u l\u00f4 66 \u0111i k\u00e8m v\u1edbi c\u1ea7u l\u00f4 33, t\u1ef7 l\u1ec7 tr\u00fang c\u1ea7u n\u00e0y t\u01b0\u01a1ng \u0111\u1ed1i cao.<\/p>\n
\u2013 H\u00f4m nay ra 1 trong 3 con th\u00ec ng\u00e0y h\u00f4m sau \u0111\u00e1nh 2 con c\u00f2n l\u1ea1i trong b\u1ed9 s\u1ed1, x\u00e1c su\u1ea5t tr\u00fang kh\u00e1 cao:<\/p>\n
B\u1ed9 32, 43, 91<\/p>\n
B\u1ed9 64, 63, 85<\/p>\n
B\u1ed9 99, 00, 50<\/p>\n
B\u1ed9 36, 49, 81.<\/p>\n
b. C\u1ea7u l\u00f4 b\u1ea1c nh\u1edb hay \u0111i c\u00f9ng nhau<\/h3>\n
C\u00e1c c\u1eb7p l\u00f4 hay v\u1ec1 c\u00f9ng nhau c\u1ee7a c\u1ea7u k\u00e8o mi\u1ec1n b\u1eafc ch\u00ednh x\u00e1c nh\u1ea5t<\/p>\n
\u2013 C\u1ea7u l\u00f4 00 hay \u0111i c\u00f9ng c\u1ea7u l\u00f4 10.<\/p>\n
\u2013 C\u1ea7u l\u00f4 11 hay \u0111i c\u00f9ng c\u1ea7u l\u00f4 01.<\/p>\n
\u2013 C\u1ea7u l\u00f4 ra c\u1ea3 c\u1eb7p s\u1ed1 060 th\u00ec ng\u00e0y h\u00f4m sau s\u1ebd r\u01a1i l\u1ea1i 1 con.<\/p>\n
\u2013 C\u1ea7u l\u00f4 51 hay \u0111i c\u00f9ng 15 ho\u1eb7c s\u1ebd tr\u1ea3 l\u1ea1i c\u1ea3 c\u1eb7p. Ng\u01b0\u1ee3c l\u1ea1i kh\u00f4ng \u0111\u00fang.<\/p>\n
\u2013 B\u1ed9 c\u1ea7u l\u00f4 050 h\u00f4m nay \u0111\u1ec1u ra ho\u1eb7c c\u00f3 1 con th\u00ec h\u00f4m sau s\u1ebd tr\u1ea3 l\u1ea1i 1 con.<\/p>\n
\u2013 B\u1ed9 c\u1ea7u l\u00f4 020 h\u00f4m nay \u0111\u1ec1u ra ho\u1eb7c c\u00f3 1 con th\u00ec h\u00f4m sau s\u1ebd c\u00f3 99 v\u00e0 ng\u01b0\u1ee3c l\u1ea1i.<\/p>\n
\u2013 C\u1ea7u l\u00f4 75 hay \u0111i c\u00f9ng c\u1ea7u l\u00f4 57, ng\u01b0\u1ee3c l\u1ea1i th\u00ec kh\u00f4ng \u0111\u00fang.<\/p>\n
\u2013 C\u1ea7u l\u00f4 97 ra h\u00f4m tr\u01b0\u1edbc th\u00ec h\u00f4m sau v\u1ec1 k\u00e8m b\u1ed9 c\u1ea7u l\u00f4 373.<\/p>\n
\u2013 N\u1ebfu th\u1ea5y \u0111\u1ea7u l\u00f4 7 ho\u1eb7c l\u00f4 t\u00f4 \u0111\u00edt 3 h\u00f4m nay c\u00e2m th\u00ec h\u00f4m sau nu\u00f4i 73.<\/p>\n
c. C\u1ea7u l\u00f4 \u0111\u1ec1 ch\u00ednh x\u00e1c nh\u1ea5t hay \u0111i v\u1edbi nhau<\/h3>\n
<\/p>\n
\u2013 B\u1ed9 c\u1ea7u l\u00f4 18, 81 h\u00f4m tr\u01b0\u1edbc ra \u1edf gi\u1ea3i nh\u1ea5t th\u00ec h\u00f4m sau c\u00f3 \u0111\u00e1nh b\u1ed9 c\u1ea7u l\u00f4 97, 99 v\u00e0 ng\u01b0\u1ee3c l\u1ea1i.<\/p>\n
\u2013 Th\u1ea5y h\u00f4m nay c\u1ea7u l\u00f4 45 ra th\u00ec h\u00f4m sau \u0111\u1eb7t k\u00e8o l\u00f4 t\u00f4 595 hay 09.<\/p>\n
\u2013 Th\u1ea5y c\u1ea7u l\u00f4 58 h\u00f4m nay m\u00e0 ra th\u00ec 3 h\u00f4m sau \u0111\u1eb7t k\u00e8o l\u00f4 t\u00f4 63.<\/p>\n
\u2013 Th\u1ea5y c\u1ea7u l\u00f4 68 h\u00f4m nay ra th\u00ec h\u00f4m sau s\u1ebd \u0111\u1eb7t k\u00e8o l\u00f4 86.<\/p>\n
d. C\u1ea7u l\u00f4 mi\u1ec1n b\u1eafc ch\u00ednh x\u00e1c nh\u1ea5t v\u1ec1 \u0111\u1ec1 th\u01b0\u1eddng \u0111i v\u1ec1 k\u00e8m v\u1edbi l\u00f4<\/h3>\n
\u2013 H\u00f4m nay \u0111\u1ec1 05 th\u00ec h\u00f4m sau s\u1ebd c\u00f3 k\u00e8o l\u00f4 t\u00f4 95.<\/p>\n
\u2013 H\u00f4m nay \u0111\u1ec1 29 h\u00f4m sau s\u1ebd c\u00f3 k\u00e8o l\u00f4 t\u00f4 22 v\u00e0 ng\u01b0\u1ee3c l\u1ea1i.<\/p>\n
\u2013 Th\u1ea5y t\u1ed5ng \u0111\u1ec1 h\u00f4m nay l\u00e0 9 th\u00ec hay ra l\u1ea1i nu\u00f4i k\u00e8o \u0111\u1ec1 t\u1ed5ng 5.<\/p>\n
\u2013 Th\u1ea5y \u0111\u1ec1 h\u00f4m nay t\u1ed5ng 10 hay h\u00f4m sau \u0111\u00e1nh k\u00e8o \u0111\u1ec1 t\u1ed5ng 1.<\/p>\n
\u2013 H\u00f4m nay ra t\u1ed5ng \u0111\u1ec1 l\u00e0 6 th\u00ec mai \u0111\u00e1nh k\u00e8o \u0111\u1ec1 t\u1ed5ng 8.<\/p>\n
T\u1ed5ng h\u1ee3p \u0111\u0129nh ngh\u0129a c\u1ea7u k\u00e8o l\u00f4 \u0111\u1ec1 v\u00e0 c\u00e1c c\u1eb7p l\u00f4 mi\u1ec1n b\u1eafc hay v\u1ec1 c\u00f9ng nhau, v\u1edbi c\u00e1ch t\u00ecm c\u1ea7u \u0111\u1ec1 n\u00e0y s\u1ebd gi\u00fap b\u1ea1n t\u0103ng t\u1ef7 l\u1ec7 c\u1ea7u k\u00e8o l\u00f4 \u0111\u1ec1 c\u1ee7a m\u00ecnh l\u00ean cao h\u01a1n v\u1edbi t\u1ef7 l\u1ec7 th\u1eafng nhi\u1ec1u h\u01a1n.<\/p>\n<\/div>\n<\/div>\n<\/div>\n