{"segment":[{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai19/lv2/img\/2.jpg' \/><\/center><br\/> -3 <span class='basic_hoi_black'>?<\/span> |-7| ","select":[" A. <"," B >"," C. ="],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>Khi bi\u1ec3u di\u1ec5n tr\u00ean tr\u1ee5c s\u1ed1 ( n\u1eb1m ngang ), \u0111i\u1ec3m a n\u1eb1m b\u00ean tr\u00e1i \u0111i\u1ec3m b th\u00ec s\u1ed1 nguy\u00ean a nh\u1ecf h\u01a1n s\u1ed1 nguy\u00ean b, ng\u01b0\u1ee3c l\u1ea1i n\u1ebfu \u0111i\u1ec3m a n\u1eb1m b\u00ean ph\u1ea3i \u0111i\u1ec3m b th\u00ec s\u1ed1 nguy\u00ean a l\u1edbn h\u01a1n s\u1ed1 nguy\u00ean b.<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Ta c\u00f3: | -7 | = 7<br\/> M\u00e0 khi bi\u1ec3u di\u1ec5n tr\u00ean tr\u1ee5c s\u1ed1 \u0111i\u1ec3m -3 n\u1eb1m b\u00ean tr\u00e1i \u0111i\u1ec3m 7, n\u00ean -3 < 7<br\/> V\u1eady -3 < | -7 |<br\/> Ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> A. < <\/span><\/span> <br\/>","column":3}]}],"id_ques":911},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai19/lv2/img\/4.jpg' \/><\/center><br\/> | -11 | <span class='basic_hoi_black'>?<\/span> 0 ","select":[" A. <"," B >"," C. ="],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a |-11| r\u1ed3i so s\u00e1nh.<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Ta c\u00f3: | -11 | = 11<br\/> 11 > 0 <br\/> N\u00ean | -11 | > 0 <br\/> Ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> B. > <\/span><\/span> <br\/>","column":3}]}],"id_ques":912},{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank_random","correct":[[["-2"," -2","- 2"," - 2"]]],"list":[{"point":5,"width":60,"content":"","type_input":"","ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai19/lv2/img\/5.jpg' \/><\/center>S\u1ed1 li\u1ec1n tr\u01b0\u1edbc c\u1ee7a s\u1ed1 -1 l\u00e0 s\u1ed1: _input_","hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> S\u1ed1 nguy\u00ean a g\u1ecdi l\u00e0 <b> s\u1ed1 li\u1ec1n tr\u01b0\u1edbc <\/b> c\u1ee7a s\u1ed1 nguy\u00ean b n\u1ebfu <b> a < b <\/b> v\u00e0 kh\u00f4ng c\u00f3 s\u1ed1 nguy\u00ean n\u00e0o n\u1eb1m gi\u1eefa a v\u00e0 b ( l\u1edbn h\u01a1n a v\u00e0 nh\u1ecf h\u01a1n b). <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ta th\u1ea5y: -2 < -1 v\u00e0 kh\u00f4ng c\u00f3 s\u1ed1 nguy\u00ean n\u00e0o n\u1eb1m gi\u1eefa -2 v\u00e0 -1 <br\/> N\u00ean s\u1ed1 li\u1ec1n tr\u01b0\u1edbc c\u1ee7a s\u1ed1 -1 l\u00e0 s\u1ed1 -2<br\/>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng l\u00e0: <span class='basic_pink'> -2<\/span> <\/span> "}]}],"id_ques":913},{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank_random","correct":[[["1"," 1","1 "," 1 ","+1","+ 1"," +1"]]],"list":[{"point":5,"width":60,"content":"","type_input":"","ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai19/lv2/img\/6.jpg' \/><\/center>S\u1ed1 li\u1ec1n sau c\u1ee7a s\u1ed1 0 l\u00e0 s\u1ed1: _input_","hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> S\u1ed1 nguy\u00ean b g\u1ecdi l\u00e0 <b> s\u1ed1 li\u1ec1n sau <\/b> c\u1ee7a s\u1ed1 nguy\u00ean a n\u1ebfu <b> a < b <\/b> v\u00e0 kh\u00f4ng c\u00f3 s\u1ed1 nguy\u00ean n\u00e0o n\u1eb1m gi\u1eefa a v\u00e0 b ( l\u1edbn h\u01a1n a v\u00e0 nh\u1ecf h\u01a1n b). <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ta th\u1ea5y: 0 < 1 v\u00e0 kh\u00f4ng c\u00f3 s\u1ed1 nguy\u00ean n\u00e0o n\u1eb1m gi\u1eefa 0 v\u00e0 1<br\/> N\u00ean s\u1ed1 li\u1ec1n sau c\u1ee7a s\u1ed1 0 l\u00e0 s\u1ed1 1<br\/>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng l\u00e0: <span class='basic_pink'> 1<\/span> <\/span> "}]}],"id_ques":914},{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank_random","correct":[[["200"," 200","+200","+ 200"," + 200"]]],"list":[{"point":5,"width":60,"content":"","type_input":"","ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai19/lv2/img\/5.jpg' \/><\/center><br\/> | -258 | - | -58 | = _input_","hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> T\u00ednh t\u1eebng gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i r\u1ed3i th\u1ef1c hi\u1ec7n t\u00ednh ph\u00e9p t\u00ednh<br\/> Gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a m\u1ed9t s\u1ed1 nguy\u00ean d\u01b0\u01a1ng l\u00e0 ch\u00ednh n\u00f3 <br\/> Gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a m\u1ed9t s\u1ed1 nguy\u00ean \u00e2m l\u00e0 s\u1ed1 \u0111\u1ed1i c\u1ee7a n\u00f3 ( v\u00e0 l\u00e0 m\u1ed9t s\u1ed1 nguy\u00ean d\u01b0\u01a1ng) <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> $\\begin{align*} |-258| - |-58|&= 258 - 58\\\\&= 200\\end{align*}$ <br\/>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng l\u00e0: <span class='basic_pink'> 200<\/span><\/span> <\/span> "}]}],"id_ques":915},{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank_random","correct":[[["900"," 900","+900","+ 900"," + 900"]]],"list":[{"point":5,"width":60,"content":"","type_input":"","ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai19/lv2/img\/2.jpg' \/><\/center><br\/> | 981 | - | -81 | = _input_","hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> T\u00ednh t\u1eebng gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i r\u1ed3i th\u1ef1c hi\u1ec7n t\u00ednh ph\u00e9p t\u00ednh<br\/> Gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a m\u1ed9t s\u1ed1 nguy\u00ean d\u01b0\u01a1ng l\u00e0 ch\u00ednh n\u00f3 <br\/> Gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a m\u1ed9t s\u1ed1 nguy\u00ean \u00e2m l\u00e0 s\u1ed1 \u0111\u1ed1i c\u1ee7a n\u00f3 ( v\u00e0 l\u00e0 m\u1ed9t s\u1ed1 nguy\u00ean d\u01b0\u01a1ng) <\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> $\\begin{align*} |981| - |-81|&= 981 - 81\\\\&= 900\\end{align*}$ <br\/>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng l\u00e0: <span class='basic_pink'> 900<\/span><\/span> <\/span> "}]}],"id_ques":916},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai19/lv2/img\/8.jpg' \/><\/center><br\/> T\u00ecm x $ \\in Z $, bi\u1ebft: 85 : ( x - 7 ) = | -17 | ","select":["A. x = 2","B. x = 109","C. x = -12","D. x = 12"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>B\u01b0\u1edbc 1: Ph\u00e1 d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i<br\/>B\u01b0\u1edbc 2: T\u00ednh ( x - 7 ), <b> x - 7 \u1edf v\u1ecb tr\u00ed l\u00e0 s\u1ed1 chia, mu\u1ed1n t\u00ecm s\u1ed1 chia ta l\u1ea5y s\u1ed1 b\u1ecb chia chia cho th\u01b0\u01a1ng <\/b><br\/>B\u01b0\u1edbc 3: T\u00ednh x, <b> x \u1edf v\u1ecb tr\u00ed l\u00e0 s\u1ed1 b\u1ecb tr\u1eeb, mu\u1ed1n t\u00ecm s\u1ed1 b\u1ecb tr\u1eeb ta l\u1ea5y hi\u1ec7u c\u1ed9ng v\u1edbi s\u1ed1 tr\u1eeb <\/b>.<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>$\\begin{align*}85 : (x - 7) &= |-17|\\\\85 : (x - 7) &= 17\\\\x - 7 &= 85 : 17\\\\x-7 &= 5\\\\x& = 5 + 7\\\\x &= 12 \\end{align*}$<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'>D. x = 12<\/span><\/span>","column":2}]}],"id_ques":917},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai19/lv2/img\/6.jpg' \/><\/center><br\/> T\u00ecm x $ \\in Z $, bi\u1ebft: |-456| - 5x = 396 ","select":["A. x = 170,4","B. x = 12","C. x = -12","D. x = -170,4"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>B\u01b0\u1edbc 1: Ph\u00e1 d\u1ea5u gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i<br\/>B\u01b0\u1edbc 2: T\u00ednh 5x, <b> 5x \u1edf v\u1ecb tr\u00ed l\u00e0 s\u1ed1 tr\u1eeb, mu\u1ed1n t\u00ecm s\u1ed1 tr\u1eeb ta l\u1ea5y s\u1ed1 b\u1ecb tr\u1eeb tr\u1eeb \u0111i hi\u1ec7u <\/b><br\/>B\u01b0\u1edbc 3: T\u00ednh x, <b> x \u1edf v\u1ecb tr\u00ed l\u00e0 th\u1eeba s\u1ed1, mu\u1ed1n t\u00ecm th\u1eeba s\u1ed1 ch\u01b0a bi\u1ebft ta l\u1ea5y t\u00edch chia cho th\u1eeba s\u1ed1 \u0111\u00e3 bi\u1ebft. <\/b>.<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>$\\begin{align*}|-456| - 5x &= 396\\\\ 456 - 5x &= 396\\\\5x &= 456 - 396\\\\5x &= 60\\\\x& = 60 : 5\\\\x &= 12 \\end{align*}$<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'>B. x = 12<\/span><\/span>","column":2}]}],"id_ques":918},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai19/lv2/img\/7.jpg' \/><\/center><br\/> S\u1ed1 li\u1ec1n tr\u01b0\u1edbc c\u1ee7a m\u1ed9t s\u1ed1 nguy\u00ean d\u01b0\u01a1ng l\u00e0 m\u1ed9t s\u1ed1 nguy\u00ean d\u01b0\u01a1ng. \u0110\u00fang hay sai? ","select":["A. \u0110\u00fang","B. Sai"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> Tr\u00ean tr\u1ee5c s\u1ed1 n\u1eb1m ngang, \u0111i\u1ec3m a n\u1eb1m b\u00ean tr\u00e1i \u0111i\u1ec3m b v\u00e0 gi\u1eefa \u0111i\u1ec3m a v\u00e0 \u0111i\u1ec3m b kh\u00f4ng c\u00f3 \u0111i\u1ec3m n\u00e0o n\u1eb1m gi\u1eefa th\u00ec a l\u00e0 s\u1ed1 li\u1ec1n tr\u01b0\u1edbc c\u1ee7a s\u1ed1 b.<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Tr\u00ean tr\u1ee5c s\u1ed1 n\u1eb1m ngang, c\u00e1c s\u1ed1 nguy\u00ean n\u1eb1m b\u00ean tr\u00e1i s\u1ed1 nguy\u00ean d\u01b0\u01a1ng l\u00e0: s\u1ed1 0 v\u00e0 c\u00e1c s\u1ed1 nguy\u00ean \u00e2m<br\/> N\u00ean s\u1ed1 li\u1ec1n tr\u01b0\u1edbc c\u1ee7a m\u1ed9t s\u1ed1 nguy\u00ean d\u01b0\u01a1ng l\u00e0 m\u1ed9t s\u1ed1 nguy\u00ean d\u01b0\u01a1ng l\u00e0 sai<br\/>V\u00ed d\u1ee5: S\u1ed1 li\u1ec1n tr\u01b0\u1edbc c\u1ee7a 1 l\u00e0 0, m\u00e0 0 kh\u00f4ng ph\u1ea3i l\u00e0 s\u1ed1 nguy\u00ean d\u01b0\u01a1ng.<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0:<span class='basic_pink'>B. Sai<\/span><\/span> <br\/>","column":2}]}],"id_ques":919},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai19/lv2/img\/2.jpg' \/><\/center><br\/> Trong c\u00e1c \u0111\u00e1p \u00e1n sau, \u0111\u00e1p \u00e1n n\u00e0o sai? ","select":["A. | -2 | < 1","B. | -7 | > | -3 |","C. -5 < -3","D. 4 < | -5 |"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>T\u00ednh gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i r\u1ed3i so s\u00e1nh<br\/>M\u1ecdi s\u1ed1 nguy\u00ean \u00e2m \u0111\u1ec1u nh\u1ecf h\u01a1n b\u1ea5t k\u00ec s\u1ed1 nguy\u00ean d\u01b0\u01a1ng n\u00e0o.<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Ta c\u00f3:<br\/>| -2 | = 2; m\u00e0 2 > 1 n\u00ean |-2| > 1. \u0110\u00e1p \u00e1n A sai <br\/>|-7| = 7; |-3| = 3, m\u00e0 7 > 3 n\u00ean |-7| > |-3|. \u0110\u00e1p \u00e1n B \u0111\u00fang<br\/> -5 < -3 l\u00e0 \u0111\u00fang. \u0110\u00e1p \u00e1n C \u0111\u00fang<br\/>|-5| = 5, m\u00e0 4 < 5 n\u00ean 4 < |-5|. \u0110\u00e1p \u00e1n D \u0111\u00fang<br\/>V\u1eady \u0111\u00e1p \u00e1n sai l\u00e0: <span class='basic_pink'>A. |-2| < 1<\/span><\/span> <br\/>","column":2}]}],"id_ques":920},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai19/lv2/img\/4.jpg' \/><\/center><br\/> S\u1ed1 li\u1ec1n tr\u01b0\u1edbc c\u1ee7a m\u1ed9t s\u1ed1 nguy\u00ean \u00e2m l\u00e0 m\u1ed9t s\u1ed1 nguy\u00ean \u00e2m. \u0110\u00fang hay sai? ","select":["A. \u0110\u00fang","B. Sai"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> Tr\u00ean tr\u1ee5c s\u1ed1 n\u1eb1m ngang, \u0111i\u1ec3m a n\u1eb1m b\u00ean tr\u00e1i \u0111i\u1ec3m b v\u00e0 gi\u1eefa \u0111i\u1ec3m a v\u00e0 \u0111i\u1ec3m b kh\u00f4ng c\u00f3 \u0111i\u1ec3m n\u00e0o n\u1eb1m gi\u1eefa th\u00ec a l\u00e0 s\u1ed1 li\u1ec1n tr\u01b0\u1edbc c\u1ee7a s\u1ed1 b.<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Tr\u00ean tr\u1ee5c s\u1ed1 n\u1eb1m ngang, c\u00e1c s\u1ed1 nguy\u00ean n\u1eb1m b\u00ean tr\u00e1i s\u1ed1 nguy\u00ean \u00e2m \u0111\u1ec1u l\u00e0 c\u00e1c s\u1ed1 nguy\u00ean \u00e2m<br\/> N\u00ean s\u1ed1 li\u1ec1n tr\u01b0\u1edbc c\u1ee7a m\u1ed9t s\u1ed1 nguy\u00ean \u00e2m l\u00e0 m\u1ed9t s\u1ed1 nguy\u00ean \u00e2m l\u00e0 \u0111\u00fang.<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0:<span class='basic_pink'>A. \u0110\u00fang<\/span><\/span> <br\/>","column":2}]}],"id_ques":921},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai19/lv2/img\/3.jpg' \/><\/center><br\/> Trong c\u00e1c \u0111\u00e1p \u00e1n sau, \u0111\u00e1p \u00e1n n\u00e0o sai? ","select":["A. | -8 | < 0","B. | -3 | > | -2 |","C. -7 < -1","D. 8 < | -12 |"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>T\u00ednh gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i r\u1ed3i so s\u00e1nh<br\/>M\u1ecdi s\u1ed1 nguy\u00ean \u00e2m \u0111\u1ec1u nh\u1ecf h\u01a1n b\u1ea5t k\u00ec s\u1ed1 nguy\u00ean d\u01b0\u01a1ng n\u00e0o.<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Ta c\u00f3:<br\/>| -8 | = 8; m\u00e0 8 > 0 n\u00ean |-8| > 0. \u0110\u00e1p \u00e1n A sai <br\/>|-7| = 3; |-2| = 2, m\u00e0 3 > 2 n\u00ean |-3| > |-2|. \u0110\u00e1p \u00e1n B \u0111\u00fang<br\/> -7 < -1 l\u00e0 \u0111\u00fang. \u0110\u00e1p \u00e1n C \u0111\u00fang<br\/>|-12| = 12, m\u00e0 8 < 12 n\u00ean 8 < |-12|. \u0110\u00e1p \u00e1n D \u0111\u00fang<br\/>V\u1eady \u0111\u00e1p \u00e1n sai l\u00e0: <span class='basic_pink'>A. |-8| < 0<\/span><\/span> <br\/>","column":2}]}],"id_ques":922},{"time":24,"part":[{"title":"Ch\u1ecdn <u>nh\u1eefng<\/u> \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"Ch\u1ecdn \u0111\u01b0\u1ee3c nhi\u1ec1u \u0111\u00e1p \u00e1n","temp":"checkbox","correct":[["1","2","3"]],"list":[{"point":5,"img":"","ques":"T\u00ecm $ x \\in Z$, bi\u1ebft: $-2 \\le x < 1$","hint":"","column":2,"number_true":2,"select":["A. x = -2","B. x = -1","C. x = 0","D. x = 1"],"explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>Nh\u1eefng s\u1ed1 l\u1edbn h\u01a1n ho\u1eb7c b\u1eb1ng -2 v\u00e0 nh\u1ecf h\u01a1n 1 g\u1ed3m -2 v\u00e0 nh\u1eefng s\u1ed1 n\u1eb1m gi\u1eefa -2 v\u00e0 1 tr\u00ean tr\u1ee5c s\u1ed1 nguy\u00ean.<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Nh\u1eefng s\u1ed1 n\u1eb1m gi\u1eefa -2 v\u00e0 1 tr\u00ean tr\u1ee5c s\u1ed1 nguy\u00ean l\u00e0: -1; 0<br\/> N\u00ean$ -2 \\le x < 1 $th\u00ec x = {-2; -1; 0} <br\/>V\u1eady ta ch\u1ecdn nh\u1eefng \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'>A. x = -2; B. x = -1; C. x = 0<\/span><\/span> <br\/>"}]}],"id_ques":923},{"time":24,"part":[{"title":"Ch\u1ecdn <u>nh\u1eefng<\/u> \u0111\u00e1p \u00e1n \u0111\u00fang","title_trans":"Ch\u1ecdn \u0111\u01b0\u1ee3c nhi\u1ec1u \u0111\u00e1p \u00e1n","temp":"checkbox","correct":[["1","2","3","4","5"]],"list":[{"point":5,"img":"","ques":"T\u00ecm $ x \\in Z$, bi\u1ebft: $-5 \\le x < 0$","hint":"","column":3,"number_true":2,"select":[" x = -5"," x = -4"," x = -3"," x = -2"," x = -1","x = 1"],"explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>Nh\u1eefng s\u1ed1 l\u1edbn h\u01a1n ho\u1eb7c b\u1eb1ng -5 v\u00e0 nh\u1ecf h\u01a1n 0 g\u1ed3m -5 v\u00e0 nh\u1eefng s\u1ed1 n\u1eb1m gi\u1eefa -5 v\u00e0 0 tr\u00ean tr\u1ee5c s\u1ed1 nguy\u00ean.<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Nh\u1eefng s\u1ed1 n\u1eb1m gi\u1eefa -5 v\u00e0 -1 tr\u00ean tr\u1ee5c s\u1ed1 nguy\u00ean l\u00e0: -4; -3; -2; -1<br\/> N\u00ean$ -5 \\le x < -1 $th\u00ec x = {-5; -4; -3; -2; -1} <br\/>V\u1eady ta ch\u1ecdn nh\u1eefng \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> x = -5; x =-4; x =-3; x = -2; x = -1<\/span><\/span> <br\/>"}]}],"id_ques":924},{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank_random","correct":[[["-100"," -100","- 100"," - 100"," -100 "]]],"list":[{"point":5,"width":60,"content":"","type_input":"","ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai19/lv2/img\/2.jpg' \/><\/center><br\/> S\u1ed1 nguy\u00ean \u00e2m l\u1edbn nh\u1ea5t c\u00f3 3 ch\u1eef s\u1ed1 l\u00e0: _input_","hint":"","explain":" <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>S\u1ed1 nguy\u00ean \u00e2m l\u1edbn nh\u1ea5t c\u00f3 3 ch\u1eef s\u1ed1 l\u00e0: -100<br\/> V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng l\u00e0: <span class='basic_pink'> -100<\/span><\/span> <br\/> "}]}],"id_ques":925},{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank_random","correct":[[["-99"," -99","- 99"," - 99"," -99 "]]],"list":[{"point":5,"width":60,"content":"","type_input":"","ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai19/lv2/img\/5.jpg' \/><\/center><br\/> S\u1ed1 nguy\u00ean \u00e2m c\u00f3 hai ch\u1eef s\u1ed1 v\u00e0 c\u00f3 gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i l\u1edbn nh\u1ea5t l\u00e0: _input_","hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>Gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a s\u1ed1 nguy\u00ean \u00e2m l\u00e0 m\u1ed9t s\u1ed1 nguy\u00ean d\u01b0\u01a1ng.<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>S\u1ed1 nguy\u00ean d\u01b0\u01a1ng l\u1edbn nh\u1ea5t c\u00f3 hai ch\u1eef s\u1ed1 l\u00e0: 99<br\/>N\u00ean s\u1ed1 nguy\u00ean \u00e2m c\u00f3 2 ch\u1eef s\u1ed1 c\u00f3 gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i l\u1edbn nh\u1ea5t l\u00e0: -99<br\/> V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng l\u00e0: <span class='basic_pink'> -99<\/span><\/span> <br\/> "}]}],"id_ques":926},{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank_random","correct":[[["-7"],["-5"],["0"],["3"],["4"]]],"list":[{"point":5,"width":60,"content":"","type_input":"","ques":" Cho c\u00e1c s\u1ed1: -7; 3; 4; -5; 0<br\/>C\u00e1c s\u1ed1 tr\u00ean \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo th\u1ee9 t\u1ef1 t\u0103ng d\u1ea7n l\u00e0: _input_; _input_; _input_; _input_; _input_","hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>S\u1ed1 nguy\u00ean \u00e2m lu\u00f4n nh\u1ecf h\u01a1n b\u1ea5t k\u00ec s\u1ed1 nguy\u00ean d\u01b0\u01a1ng n\u00e0o<br\/>S\u1ed1 nguy\u00ean \u00e2m lu\u00f4n nh\u1ecf h\u01a1n 0<br\/>S\u1ed1 nguy\u00ean d\u01b0\u01a1ng lu\u00f4n l\u1edbn h\u01a1n 0<\/span><br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> -7 n\u1eb1m b\u00ean tr\u00e1i -5 tr\u00ean tr\u1ee5c s\u1ed1 n\u1eb1m ngang n\u00ean <b>-7 < -5<\/b><br\/>-5 l\u00e0 s\u1ed1 nguy\u00ean \u00e2m n\u00ean <b> -5 < 0<\/b><br\/> m\u00e0 0 < 3, 3 < 4<br\/>V\u1eady c\u00e1c s\u1ed1 tr\u00ean \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo th\u1ee9 t\u1ef1 t\u0103ng d\u1ea7n l\u00e0: <span class='basic_pink'>-7; -5; 0; 3; 4<\/span><\/span> <br\/>"}]}],"id_ques":927},{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank_random","correct":[[["8"," 8"," 8"],["3"," 3"],["1"," 1","+1"],["-5","- 5"," -5"],[" -9","-9","- 9"]]],"list":[{"point":5,"width":60,"content":"","type_input":"","ques":" Cho c\u00e1c s\u1ed1: -5; -9; 1; 8; 3<br\/>C\u00e1c s\u1ed1 tr\u00ean \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo th\u1ee9 t\u1ef1 gi\u1ea3m d\u1ea7n l\u00e0: _input_; _input_; _input_; _input_; _input_","hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>S\u1ed1 nguy\u00ean \u00e2m lu\u00f4n nh\u1ecf h\u01a1n b\u1ea5t k\u00ec s\u1ed1 nguy\u00ean d\u01b0\u01a1ng n\u00e0o<br\/>S\u1ed1 nguy\u00ean \u00e2m lu\u00f4n nh\u1ecf h\u01a1n 0<br\/>S\u1ed1 nguy\u00ean d\u01b0\u01a1ng lu\u00f4n l\u1edbn h\u01a1n 0<\/span><br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> -9 n\u1eb1m b\u00ean tr\u00e1i -5 tr\u00ean tr\u1ee5c s\u1ed1 n\u1eb1m ngang n\u00ean <b>-9 < -5<\/b><br\/>-5 l\u00e0 s\u1ed1 nguy\u00ean \u00e2m n\u00ean <b> -5 < 1<\/b><br\/> m\u00e0 1 < 3 < 8<br\/>V\u1eady c\u00e1c s\u1ed1 tr\u00ean \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo th\u1ee9 t\u1ef1 gi\u1ea3m d\u1ea7n l\u00e0: <span class='basic_pink'>8; 3; 1; -5; -9<\/span><\/span> <br\/>"}]}],"id_ques":928},{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank_random","correct":[[["0"," 0"," 0"," 0 "," 0 "]]],"list":[{"point":5,"width":30,"content":"","type_input":"","ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai19/lv2/img\/4.jpg' \/><\/center><br\/> -451 < -45_input_","hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>Trong hai s\u1ed1 nguy\u00ean \u00e2m, s\u1ed1 n\u00e0o c\u00f3 gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i nh\u1ecf h\u01a1n th\u00ec s\u1ed1 \u0111\u00f3 l\u1edbn h\u01a1n ho\u1eb7c s\u1ed1 n\u00e0o c\u00f3 s\u1ed1 \u0111\u1ed1i nh\u1ecf h\u01a1n th\u00ec s\u1ed1 \u0111\u00f3 l\u1edbn h\u01a1n.<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Ta c\u00f3: |-451| = 451<br\/>M\u00e0 451 > 450, n\u00ean -451 < -450<br\/> V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng l\u00e0: <span class='basic_pink'> 0<\/span><\/span> <br\/> "}]}],"id_ques":929},{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank_random","correct":[[["0"," 0"," 0"," 0 "," 0 "]]],"list":[{"point":5,"width":20,"content":"","type_input":"","ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai19/lv2/img\/2.jpg' \/><\/center><br\/> -3_input_7 > -317","hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>Trong hai s\u1ed1 nguy\u00ean \u00e2m, s\u1ed1 n\u00e0o c\u00f3 gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i nh\u1ecf h\u01a1n th\u00ec s\u1ed1 \u0111\u00f3 l\u1edbn h\u01a1n ho\u1eb7c s\u1ed1 n\u00e0o c\u00f3 s\u1ed1 \u0111\u1ed1i nh\u1ecf h\u01a1n th\u00ec s\u1ed1 \u0111\u00f3 l\u1edbn h\u01a1n.<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Ta c\u00f3: |-317| = 317<br\/>M\u00e0 317 > 307, n\u00ean -307 > -317<br\/> V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng l\u00e0: <span class='basic_pink'> 0<\/span><\/span> <br\/> "}]}],"id_ques":930}],"lesson":{"save":0,"level":2}}