<\/span><\/h2>\n\u0110\u00e2y \u0111\u01b0\u1ee3c hi\u1ec3u l\u00e0 k\u00e8o \u0111\u1ed3ng n\u1eeda v\u00e0 \u0111\u01b0\u1ee3c k\u00fd hi\u1ec7u 0.25 ho\u1eb7c 0 – 0.5. V\u1edbi k\u00e8o ch\u1ea5p \u0111\u1ed3ng n\u1eeda \u0111\u1ed9i thu\u1ed9c c\u1eeda tr\u00ean s\u1ebd ch\u1ea5p \u0111\u1ed9i c\u1eeda d\u01b0\u1edbi. Ng\u01b0\u1eddi ch\u01a1i th\u1ef1c hi\u1ec7n c\u00e1c b\u01b0\u1edbc soi k\u00e8o v\u1edbi nh\u00e0 c\u00e1i v\u00e0 b\u1eaft \u0111\u1ea7u \u0111\u1eb7t c\u01b0\u1ee3c v\u00e0o \u0111\u1ed9i c\u1eeda tr\u00ean ho\u1eb7c c\u1eeda d\u01b0\u1edbi. C\u00e1c tr\u01b0\u1eddng h\u1ee3p x\u1ea3y ra khi ch\u01a1i k\u00e8o \u00be m\u00e0 b\u1ea1n c\u1ea7n n\u1eafm r\u00f5 nh\u01b0 sau:<\/span><\/p>\n\n- Tr\u01b0\u1eddng h\u1ee3p 1: N\u1ebfu ng\u01b0\u1eddi ch\u01a1i \u0111\u1eb7t c\u01b0\u1ee3c v\u00e0o \u0111\u1ed9i tr\u00ean v\u00e0 n\u1ebfu \u0111\u1ed9i tr\u00ean th\u1eafng th\u00ec th\u00ec s\u1ebd th\u1eafng k\u00e8o.<\/span><\/li>\n
- Tr\u01b0\u1eddng h\u1ee3p 2: N\u1ebfu ng\u01b0\u1eddi ch\u01a1i \u0111\u1eb7t c\u01b0\u1ee3c \u0111\u1ed9i d\u01b0\u1edbi v\u00e0 k\u1ebft th\u00fac tr\u1eadn \u0111\u1ea5u k\u1ebft qu\u1ea3 \u0111\u1ed9i d\u01b0\u1edbi th\u1eafng th\u00ec s\u1ebd th\u1eafng k\u00e8o.<\/span><\/li>\n
- Tr\u01b0\u1eddng h\u1ee3p 3: N\u1ebfu x\u1ea3y ra tr\u01b0\u1eddng h\u1ee3p 2 \u0111\u1ed9i b\u00f3ng c\u00f3 k\u1ebft qu\u1ea3 h\u00f2a nhau th\u00ec \u0111\u1ed9i tr\u00ean s\u1ebd thua n\u1eeda ti\u1ec1n v\u00e0 \u0111\u1ed9i d\u01b0\u1edbi s\u1ebd \u0103n n\u1eeda ti\u1ec1n.<\/span><\/li>\n<\/ul>\n