{"segment":[{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["100"]]],"list":[{"point":5,"width":60,"type_input":"","ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai21/lv1/img\/9.jpg' \/><\/center>(-150) + 250 = _input_","hint":"","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>Mu\u1ed1n c\u1ed9ng hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u kh\u00f4ng \u0111\u1ed1i nhau, ta t\u00ecm hi\u1ec7u hai gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a ch\u00fang (s\u1ed1 l\u1edbn tr\u1eeb s\u1ed1 nh\u1ecf) r\u1ed3i \u0111\u1eb7t tr\u01b0\u1edbc k\u1ebft qu\u1ea3 t\u00ecm \u0111\u01b0\u1ee3c d\u1ea5u c\u1ee7a s\u1ed1 c\u00f3 gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i l\u1edbn h\u01a1n.<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Ta c\u00f3: <br\/>$\\begin{align*}(-150) + 250&= (250 - 150) \\\\&= 100\\end{align*}$<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":991},{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["-124"]]],"list":[{"point":5,"width":60,"type_input":"","ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai21/lv1/img\/6.jpg' \/><\/center>(-182) + 58 = _input_","hint":"","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>Mu\u1ed1n c\u1ed9ng hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u kh\u00f4ng \u0111\u1ed1i nhau, ta t\u00ecm hi\u1ec7u hai gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a ch\u00fang (s\u1ed1 l\u1edbn tr\u1eeb s\u1ed1 nh\u1ecf) r\u1ed3i \u0111\u1eb7t tr\u01b0\u1edbc k\u1ebft qu\u1ea3 t\u00ecm \u0111\u01b0\u1ee3c d\u1ea5u c\u1ee7a s\u1ed1 c\u00f3 gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i l\u1edbn h\u01a1n.<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Ta c\u00f3: <br\/>$\\begin{align*}(-182) + 58&= - (182 - 58) \\\\&= -124\\end{align*}$<br\/>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng l\u00e0: <span class='basic_pink'> -124<\/span><\/span> <br\/> "}]}],"id_ques":992},{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["-300"]]],"list":[{"point":5,"width":60,"type_input":"","ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai21/lv1/img\/2.jpg' \/><\/center>(-318) + 18 = _input_","hint":"","explain":"<span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>Mu\u1ed1n c\u1ed9ng hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u kh\u00f4ng \u0111\u1ed1i nhau, ta t\u00ecm hi\u1ec7u hai gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a ch\u00fang (s\u1ed1 l\u1edbn tr\u1eeb s\u1ed1 nh\u1ecf) r\u1ed3i \u0111\u1eb7t tr\u01b0\u1edbc k\u1ebft qu\u1ea3 t\u00ecm \u0111\u01b0\u1ee3c d\u1ea5u c\u1ee7a s\u1ed1 c\u00f3 gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i l\u1edbn h\u01a1n.<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Ta c\u00f3: <br\/>$\\begin{align*}(-318) + 18&= - (318 - 18) \\\\&= -300\\end{align*}$<br\/>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng l\u00e0: <span class='basic_pink'> -300<\/span><\/span> <br\/> "}]}],"id_ques":993},{"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/bai21/lv1/img\/5.jpg'\/><\/center> T\u1ed5ng c\u1ee7a 49205 v\u00e0 (-392) l\u00e0: ","select":["A. 48813","B. -48813 ","C. 48823","D. -48823"],"hint":" T\u1ed5ng t\u1ee9c l\u00e0 ph\u00e9p t\u00ednh c\u1ed9ng","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>T\u1ed5ng t\u1ee9c l\u00e0 th\u1ef1c hi\u1ec7n ph\u00e9p t\u00ednh c\u1ed9ng.<\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>T\u1ed5ng c\u1ee7a 49205 v\u00e0 (-392) l\u00e0:<br\/> $\\begin{align*}49205 + (-392)&= (49205 - 392) \\\\&= 48813\\end{align*}$<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> A. 48813<\/span><\/span> <br\/>","column":2}]}],"id_ques":994},{"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/bai21/lv1/img\/4.jpg'\/><\/center> T\u1ed5ng c\u1ee7a -42503 v\u00e0 7903 l\u00e0: ","select":["A. 34600","B. -34600 ","C. 35600","D. -35600"],"hint":" T\u1ed5ng t\u1ee9c l\u00e0 ph\u00e9p t\u00ednh c\u1ed9ng","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>T\u1ed5ng t\u1ee9c l\u00e0 th\u1ef1c hi\u1ec7n ph\u00e9p t\u00ednh c\u1ed9ng.<\/span> <br\/><br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>T\u1ed5ng c\u1ee7a -42503 v\u00e0 7903 l\u00e0:<br\/> $\\begin{align*}(-42503) + 7903&= -(42503 - 7903)\\\\&= -34600\\end{align*}$<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> B. -34600<\/span><\/span> <br\/>","column":2}]}],"id_ques":995},{"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":" T\u00ecm x, bi\u1ebft:<br\/>x - 3259 = (-7543) ","select":["x = 4284","x = - 4284","x = 4384","x = - 4384"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>x \u1edf v\u1ecb tr\u00ed l\u00e0 s\u1ed1 b\u1ecb tr\u1eeb<br\/>3259 \u1edf v\u1ecb tr\u00ed l\u00e0 s\u1ed1 tr\u1eeb<br\/>(-7543) \u1edf v\u1ecb tr\u00ed l\u00e0 hi\u1ec7u<br\/><b> S\u1ed1 b\u1ecb tr\u1eeb = Hi\u1ec7u + S\u1ed1 tr\u1eeb <br\/>(<i><b>L\u01b0u \u00fd:<\/b> Mu\u1ed1n c\u1ed9ng hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u kh\u00f4ng \u0111\u1ed1i nhau, ta t\u00ecm hi\u1ec7u hai gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a ch\u00fang ( s\u1ed1 l\u1edbn tr\u1eeb s\u1ed1 nh\u1ecf) r\u1ed3i \u0111\u1eb7t tr\u01b0\u1edbc k\u1ebft qu\u1ea3 t\u00ecm \u0111\u01b0\u1ee3c d\u1ea5u c\u1ee7a s\u1ed1 c\u00f3 gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i l\u1edbn h\u01a1n<\/i>)<\/b><\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>$\\begin{align*}x - 3259 &= (-7543) \\\\x&=(-7543) + 3259\\\\x&= - (7543 - 3259)\\\\x&= -4284 \\end{align*}$<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> x = -4284<\/span><\/span> <br\/>","column":2}]}],"id_ques":996},{"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":" T\u00ecm x, bi\u1ebft:<br\/>x - 38592 = (-94037) ","select":["x = 54445","x = - 54445","x = 55445","x = - 55445"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>x \u1edf v\u1ecb tr\u00ed l\u00e0 s\u1ed1 b\u1ecb tr\u1eeb<br\/>38592 \u1edf v\u1ecb tr\u00ed l\u00e0 s\u1ed1 tr\u1eeb<br\/>(-94037) \u1edf v\u1ecb tr\u00ed l\u00e0 hi\u1ec7u<br\/><b> S\u1ed1 b\u1ecb tr\u1eeb = Hi\u1ec7u + S\u1ed1 tr\u1eeb <br\/>(<i><b>L\u01b0u \u00fd:<\/b> Mu\u1ed1n c\u1ed9ng hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u kh\u00f4ng \u0111\u1ed1i nhau, ta t\u00ecm hi\u1ec7u hai gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a ch\u00fang ( s\u1ed1 l\u1edbn tr\u1eeb s\u1ed1 nh\u1ecf) r\u1ed3i \u0111\u1eb7t tr\u01b0\u1edbc k\u1ebft qu\u1ea3 t\u00ecm \u0111\u01b0\u1ee3c d\u1ea5u c\u1ee7a s\u1ed1 c\u00f3 gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i l\u1edbn h\u01a1n<\/i>)<\/b><\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>$\\begin{align*}x - 38592 &= (-94037) \\\\x&=(-94037) + 38592\\\\x&= - (94037 - 38592)\\\\x&= -55445\\end{align*}$<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> x = -55445<\/span><\/span> <br\/>","column":2}]}],"id_ques":997},{"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/bai21/lv1/img\/2.jpg' \/><\/center>19743 + (-5) <span class='basic_hoi_black'>?<\/span> 19743 ","select":[">","<","="],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>T\u00ednh k\u1ebft qu\u1ea3 c\u1ee7a v\u1ebf ph\u1ea3i r\u1ed3i so s\u00e1nh k\u1ebft qu\u1ea3 c\u1ee7a v\u1ebf ph\u1ea3i v\u1edbi s\u1ed1 \u0111\u00e3 cho \u1edf v\u1ebf tr\u00e1i.<br\/>(<i><b>L\u01b0u \u00fd:<\/b> Mu\u1ed1n c\u1ed9ng hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u kh\u00f4ng \u0111\u1ed1i nhau, ta t\u00ecm hi\u1ec7u hai gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a ch\u00fang ( s\u1ed1 l\u1edbn tr\u1eeb s\u1ed1 nh\u1ecf) r\u1ed3i \u0111\u1eb7t tr\u01b0\u1edbc k\u1ebft qu\u1ea3 t\u00ecm \u0111\u01b0\u1ee3c d\u1ea5u c\u1ee7a s\u1ed1 c\u00f3 gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i l\u1edbn h\u01a1n<\/i>)<br\/><\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Ta c\u00f3:<br\/> $\\underbrace{19743 + (-5)}_{19738}$ <span class='basic_hoi_black'>?<\/span> 19743<br\/> M\u00e0 19738 < 19743<br\/>N\u00ean <b>19743 + (-5) < 19743<\/b><br\/> V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> <<\/span><\/span> <br\/>","column":3}]}],"id_ques":998},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai21/lv1/img\/7.jpg' \/><\/center>(-17509) + 7 <span class='basic_hoi_black'>?<\/span> -17502 ","select":[">","<","="],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>T\u00ednh k\u1ebft qu\u1ea3 c\u1ee7a v\u1ebf ph\u1ea3i r\u1ed3i so s\u00e1nh k\u1ebft qu\u1ea3 c\u1ee7a v\u1ebf ph\u1ea3i v\u1edbi s\u1ed1 \u0111\u00e3 cho \u1edf v\u1ebf tr\u00e1i.<br\/>(<i><b>L\u01b0u \u00fd:<\/b> Mu\u1ed1n c\u1ed9ng hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u kh\u00f4ng \u0111\u1ed1i nhau, ta t\u00ecm hi\u1ec7u hai gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a ch\u00fang ( s\u1ed1 l\u1edbn tr\u1eeb s\u1ed1 nh\u1ecf) r\u1ed3i \u0111\u1eb7t tr\u01b0\u1edbc k\u1ebft qu\u1ea3 t\u00ecm \u0111\u01b0\u1ee3c d\u1ea5u c\u1ee7a s\u1ed1 c\u00f3 gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i l\u1edbn h\u01a1n<\/i>)<br\/><\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Ta c\u00f3:<br\/> $\\underbrace{(-17509) + 7}_{-17502}$ <span class='basic_hoi_black'>?<\/span> -17502<br\/>N\u00ean <b>(-17509) + 7 = -17502<\/b><br\/> V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> =<\/span><\/span> <br\/>","column":3}]}],"id_ques":999},{"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":" T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c:<br\/>A = x + (-15) , bi\u1ebft x = 8","select":["A = -7","A = -8","A = 7","A = 8"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>B\u01b0\u1edbc 1: Thay gi\u00e1 tr\u1ecb c\u1ee7a x v\u00e0o bi\u1ec3u th\u1ee9c A<br\/>B\u01b0\u1edbc 2: T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c A <br\/>(<i><b>L\u01b0u \u00fd:<\/b> Mu\u1ed1n c\u1ed9ng hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u kh\u00f4ng \u0111\u1ed1i nhau, ta t\u00ecm hi\u1ec7u hai gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a ch\u00fang ( s\u1ed1 l\u1edbn tr\u1eeb s\u1ed1 nh\u1ecf) r\u1ed3i \u0111\u1eb7t tr\u01b0\u1edbc k\u1ebft qu\u1ea3 t\u00ecm \u0111\u01b0\u1ee3c d\u1ea5u c\u1ee7a s\u1ed1 c\u00f3 gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i l\u1edbn h\u01a1n<\/i>)<\/b><\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Thay x = 8 v\u00e0o bi\u1ec3u th\u1ee9c A = x + (-15) ta \u0111\u01b0\u1ee3c:<br\/>$\\begin{align*}A&= 8 + (-15) \\\\A&= - (15 - 8)\\\\A&= -7\\end{align*}$<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> A = -7<\/span><\/span> <br\/>","column":2}]}],"id_ques":1000},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":" T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c:<br\/>A = (-42) + x , bi\u1ebft x = 56","select":["A = -14","A = -15","A = 14","A = 15"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>B\u01b0\u1edbc 1: Thay gi\u00e1 tr\u1ecb c\u1ee7a x v\u00e0o bi\u1ec3u th\u1ee9c A<br\/>B\u01b0\u1edbc 2: T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c A <br\/>(<i><b>L\u01b0u \u00fd:<\/b> Mu\u1ed1n c\u1ed9ng hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u kh\u00f4ng \u0111\u1ed1i nhau, ta t\u00ecm hi\u1ec7u hai gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a ch\u00fang ( s\u1ed1 l\u1edbn tr\u1eeb s\u1ed1 nh\u1ecf) r\u1ed3i \u0111\u1eb7t tr\u01b0\u1edbc k\u1ebft qu\u1ea3 t\u00ecm \u0111\u01b0\u1ee3c d\u1ea5u c\u1ee7a s\u1ed1 c\u00f3 gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i l\u1edbn h\u01a1n<\/i>)<\/b><\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Thay x = 56 v\u00e0o bi\u1ec3u th\u1ee9c A = (-42) + x ta \u0111\u01b0\u1ee3c:<br\/>$\\begin{align*}A&= (-42) + 56 \\\\A&= (56 - 42)\\\\A&= 14\\end{align*}$<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> A = 14<\/span><\/span> <br\/>","column":2}]}],"id_ques":1001},{"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/bai21/lv1/img\/5.jpg' \/><\/center>B\u1ea1n Minh n\u00f3i: 50 + (-8) = (-42). V\u1eady b\u1ea1n Minh n\u00f3i \u0111\u00fang hay sai? ","select":["\u0110\u00fang","Sai"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>Mu\u1ed1n c\u1ed9ng hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u kh\u00f4ng \u0111\u1ed1i nhau, ta t\u00ecm hi\u1ec7u hai gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a ch\u00fang ( s\u1ed1 l\u1edbn tr\u1eeb s\u1ed1 nh\u1ecf) r\u1ed3i \u0111\u1eb7t tr\u01b0\u1edbc k\u1ebft qu\u1ea3 t\u00ecm \u0111\u01b0\u1ee3c d\u1ea5u c\u1ee7a s\u1ed1 c\u00f3 gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i l\u1edbn h\u01a1n<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>$\\begin{align*} 50 + (-8) &= (50 - 8)\\\\&= 42\\end{align*}$<br\/>V\u1eady b\u1ea1n Minh n\u00f3i sai<br\/>Ta ch\u1ecdn \u0111\u00e1p \u00e1n: <span class='basic_pink'> Sai<\/span><\/span> <br\/>","column":2}]}],"id_ques":1002},{"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/bai21/lv1/img\/4.jpg' \/><\/center>B\u1ea1n H\u00f2a n\u00f3i: (-42) + 7 = (-35). V\u1eady b\u1ea1n H\u00f2a n\u00f3i \u0111\u00fang hay sai? ","select":["\u0110\u00fang","Sai"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/>Mu\u1ed1n c\u1ed9ng hai s\u1ed1 nguy\u00ean kh\u00e1c d\u1ea5u kh\u00f4ng \u0111\u1ed1i nhau, ta t\u00ecm hi\u1ec7u hai gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i c\u1ee7a ch\u00fang ( s\u1ed1 l\u1edbn tr\u1eeb s\u1ed1 nh\u1ecf) r\u1ed3i \u0111\u1eb7t tr\u01b0\u1edbc k\u1ebft qu\u1ea3 t\u00ecm \u0111\u01b0\u1ee3c d\u1ea5u c\u1ee7a s\u1ed1 c\u00f3 gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i l\u1edbn h\u01a1n<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>$\\begin{align*} (-42) + 7 &= - (42 - 7)\\\\&= -35\\end{align*}$<br\/>V\u1eady b\u1ea1n H\u00f2a n\u00f3i \u0111\u00fang<br\/>Ta ch\u1ecdn \u0111\u00e1p \u00e1n: <span class='basic_pink'> \u0110\u00fang<\/span><\/span> <br\/>","column":2}]}],"id_ques":1003},{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["-1","- 1"," -1"," -1 "," - 1"," - 1 "]]],"list":[{"point":5,"width":60,"type_input":"","ques":" Nhi\u1ec7t \u0111\u1ed9 t\u1ea1i Tokyo v\u00e0o bu\u1ed5i tr\u01b0a l\u00e0 $2^oC$, v\u00e0o bu\u1ed5i t\u1ed1i nhi\u1ec7t \u0111\u1ed9 \u0111\u00e3 gi\u1ea3m $3^oC$ so v\u1edbi bu\u1ed5i tr\u01b0a. V\u1eady nhi\u1ec7t \u0111\u1ed9 t\u1ea1i Tokyo v\u00e0o bu\u1ed5i t\u1ed1i l\u00e0: _input_ $^oC$","hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> Ta c\u00f3 th\u1ec3 coi gi\u1ea3m $3^oC$ c\u00f3 ngh\u0129a l\u00e0 t\u0103ng $-3^oC$<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Nhi\u1ec7t \u0111\u1ed9 t\u1ea1i Tokyo v\u00e0o bu\u1ed5i t\u1ed1i l\u00e0:<br\/> $2^oC$ + ( $-3^oC$ ) = - ( $3^oC$ - $2^oC$ ) = - $1^oC$<br\/>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng l\u00e0: <span class='basic_pink'> -1<\/span><\/span> <br\/>"}]}],"id_ques":1004},{"time":24,"part":[{"title":"\u0110i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["-2","- 2"," -2"," -2 "," - 2"," - 2 "]]],"list":[{"point":5,"width":60,"type_input":"","ques":" Nhi\u1ec7t \u0111\u1ed9 t\u1ea1i ph\u00f2ng \u01b0\u1edbp l\u1ea1nh v\u00e0o bu\u1ed5i s\u00e1ng l\u00e0 $4^oC$, v\u00ec \u0111i\u1ec1u ki\u1ec7n b\u1ea3o qu\u1ea3n n\u00ean nhi\u1ec7t \u0111\u1ed9 trong ph\u00f2ng ph\u1ea3i gi\u1ea3m $6^oC$. V\u1eady nhi\u1ec7t \u0111\u1ed9 trong ph\u00f2ng \u01b0\u1edbp l\u1ea1nh sau khi gi\u1ea3m l\u00e0: _input_ $^oC$","hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> Ta c\u00f3 th\u1ec3 coi gi\u1ea3m $6^oC$ c\u00f3 ngh\u0129a l\u00e0 t\u0103ng $-6^oC$<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Nhi\u1ec7t \u0111\u1ed9 t\u1ea1i ph\u00f2ng \u01b0\u1edbp l\u1ea1nh sau khi gi\u1ea3m l\u00e0:<br\/> $4^oC$ + ( $-6^oC$ ) = - ( $6^oC$ - $4^oC$ ) = - $2^oC$<br\/>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n v\u00e0o \u00f4 tr\u1ed1ng l\u00e0: <span class='basic_pink'> -2<\/span><\/span> <br\/>"}]}],"id_ques":1005},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00fang hay sai","title_trans":"","temp":"true_false","correct":[["f","t","t","t"]],"list":[{"point":5,"image":"","col_name":["","\u0110\u00fang","Sai"],"arr_ques":[" (-3507) + 507 = 3000 "," (-350) + 350 = 0 "," (-100) + 50 = -50 "," 200 + (-100) = 100"],"hint":"","explain":["(-3507) + 507 = 3000 (Sai). V\u00ec (-3507) + 507 = - (3507 - 507) = -3000"," <br\/>(-350) + 350 = 0 (\u0110\u00fang). V\u00ec hai s\u1ed1 nguy\u00ean \u0111\u1ed1i nhau c\u00f3 t\u1ed5ng b\u1eb1ng 0 ","<br\/> (-100) + 50 = -50 (\u0110\u00fang). V\u00ec (-100) + 50 = - (100 - 50) = -50 ","<br\/> 200 + (-100) = 100 (\u0110\u00fang). V\u00ec 200 + (-100) = 200 - 100 = 100 "]}]}],"id_ques":1006},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00fang hay sai","title_trans":"","temp":"true_false","correct":[["f","t","f","t"]],"list":[{"point":5,"image":"","col_name":["","\u0110\u00fang","Sai"],"arr_ques":[" (-150) + 50 = 200 "," (-100) + 100 = 0 "," (-170) + 70 = 100 "," 1200 + (-1000) = 200"],"hint":"","explain":["(-150) + 50 = 200 (Sai). V\u00ec (-150) + 50 = - (150 - 50) = -100"," <br\/>(-100) + 100 = 0 (\u0110\u00fang). V\u00ec hai s\u1ed1 nguy\u00ean \u0111\u1ed1i nhau c\u00f3 t\u1ed5ng b\u1eb1ng 0 ","<br\/> (-170) + 70 = 100 (Sai). V\u00ec (-170) + 70 = - (170 - 70) = -100 ","<br\/> 1200 + (-1000) = 200 (\u0110\u00fang). V\u00ec 1200 + (-1000) = 1200 - 1000 = 200 "]}]}],"id_ques":1007},{"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":" K\u1ebft qu\u1ea3 c\u1ee7a ph\u00e9p t\u00ednh 5 + (-8) v\u00e0 |-8| - |5| <span class='basic_hoi_black'>?<\/span>","select":["B\u1eb1ng nhau","\u0110\u1ed1i nhau"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> B\u01b0\u1edbc 1: T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a t\u1eebng v\u1ebf<br\/> B\u01b0\u1edbc 2: D\u1ef1a v\u00e0o k\u1ebft qu\u1ea3 \u0111\u1ec3 ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3:<br\/> 5 + (-8) = - (8 - 5) = -3<br\/>|-8| - |5| = 8 - 5 = 3<br\/>M\u00e0 3 v\u00e0 -3 l\u00e0 hai s\u1ed1 \u0111\u1ed1i nhau<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> \u0110\u1ed1i nhau<\/span><\/span> <br\/>","column":2}]}],"id_ques":1008},{"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":" K\u1ebft qu\u1ea3 c\u1ee7a ph\u00e9p t\u00ednh 7 + (-5) v\u00e0 |7| - |-5| <span class='basic_hoi_black'>?<\/span>","select":["B\u1eb1ng nhau","\u0110\u1ed1i nhau"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> B\u01b0\u1edbc 1: T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a t\u1eebng v\u1ebf<br\/> B\u01b0\u1edbc 2: D\u1ef1a v\u00e0o k\u1ebft qu\u1ea3 \u0111\u1ec3 ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3:<br\/> 7 + (-5) = 7 - 5 = 2<br\/>|7| - |-5| = 7 - 5 = 2<br\/>M\u00e0 2 = 2<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> B\u1eb1ng nhau<\/span><\/span> <br\/>","column":2}]}],"id_ques":1009},{"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":" K\u1ebft qu\u1ea3 c\u1ee7a ph\u00e9p t\u00ednh (-2) + 1 v\u00e0 |-2| - |1| <span class='basic_hoi_black'>?<\/span>","select":["B\u1eb1ng nhau","\u0110\u1ed1i nhau"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> B\u01b0\u1edbc 1: T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a t\u1eebng v\u1ebf<br\/> B\u01b0\u1edbc 2: D\u1ef1a v\u00e0o k\u1ebft qu\u1ea3 \u0111\u1ec3 ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang<\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3:<br\/> (-2) + 1 = - (2 - 1) = -1<br\/>|-2| - |1| = 2 - 1 = 1<br\/>M\u00e0 -1 v\u00e0 1 l\u00e0 hai s\u1ed1 \u0111\u1ed1i nhau<br\/>V\u1eady ta ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: <span class='basic_pink'> \u0110\u1ed1i nhau<\/span><\/span> <br\/>","column":2}]}],"id_ques":1010}],"lesson":{"save":0,"level":1}}