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{"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/bai8/lv1/img\/10.jpg' \/><\/center> <br\/> M\u1ed9t s\u1ed1 c\u0169ng \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t bi\u1ec3u th\u1ee9c \u0110\u00daNG <\/b> hay SAI <\/b>?","select":["A. \u0110\u00daNG ","B. SAI "],"hint":"","explain":"B\u00e0i gi\u1ea3i:<\/span> <br\/> M\u1ed9t s\u1ed1 c\u0169ng l\u00e0 m\u1ed9t bi\u1ec3u th\u1ee9c <br\/> N\u00ean kh\u1eb3ng \u0111\u1ecbnh ''M\u1ed9t s\u1ed1 c\u0169ng \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t bi\u1ec3u th\u1ee9c'' l\u00e0 \u0110\u00daNG <\/b> <br\/> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: A<\/span> <br\/> L\u01b0u \u00fd: C\u00e1c s\u1ed1 \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi nhau b\u1edbi d\u1ea5u c\u00e1c ph\u00e9p t\u00ednh (c\u1ed9ng, tr\u1eeb, nh\u00e2n, chia, n\u00e2ng l\u00ean l\u0169y th\u1eeba) l\u00e0m th\u00e0nh m\u1ed9t bi\u1ec3u th\u1ee9c <br\/> M\u1ed9t s\u1ed1 c\u0169ng \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t bi\u1ec3u th\u1ee9c <\/i> <\/span>","column":2}]}],"id_ques":351},{"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/bai8/lv1/img\/10.jpg' \/><\/center> <br\/> ''11 + 3 . 4 - 2'' kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t bi\u1ec3u th\u1ee9c \u0110\u00daNG <\/b> hay SAI <\/b>?","select":["A. \u0110\u00daNG ","B. SAI "],"hint":"","explain":"B\u00e0i gi\u1ea3i:<\/span> <br\/> ''11 + 3 . 4 - 2'' l\u00e0 m\u1ed9t bi\u1ec3u th\u1ee9c <br\/> N\u00ean kh\u1eb3ng \u0111\u1ecbnh '' ''11 + 3 . 4 - 2'' kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t bi\u1ec3u th\u1ee9c '' l\u00e0 SAI <\/b> <br\/> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B<\/span> <br\/> L\u01b0u \u00fd: C\u00e1c s\u1ed1 \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi nhau b\u1edbi d\u1ea5u c\u00e1c ph\u00e9p t\u00ednh (c\u1ed9ng, tr\u1eeb, nh\u00e2n, chia, n\u00e2ng l\u00ean l\u0169y th\u1eeba) l\u00e0m th\u00e0nh m\u1ed9t bi\u1ec3u th\u1ee9c <br\/> M\u1ed9t s\u1ed1 c\u0169ng \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t bi\u1ec3u th\u1ee9c <\/i> <\/span>","column":2}]}],"id_ques":352},{"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/bai8/lv1/img\/4.jpg' \/><\/center> <br\/> Trong bi\u1ec3u th\u1ee9c kh\u00f4ng c\u00f3 d\u1ea5u ngo\u1eb7c v\u00e0 c\u00f3 c\u1ea3 ph\u00e9p t\u00ednh c\u1ed9ng v\u00e0 tr\u1eeb, nh\u00e2n v\u00e0 chia ta th\u1ef1c hi\u1ec7n ph\u00e9p t\u00ednh c\u1ed9ng tr\u1eeb tr\u01b0\u1edbc, nh\u00e2n v\u00e0 chia sau \u0110\u00daNG <\/b> hay SAI <\/b>?","select":["A. \u0110\u00daNG ","B. SAI "],"hint":"","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/> TH\u1ee8 T\u1ef0 TH\u1ef0C HI\u1ec6N C\u00c1C PH\u00c9P T\u00cdNH: <\/b> <br\/> 1. Th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c kh\u00f4ng c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> L\u0169y th\u1eeba -> Nh\u00e2n v\u00e0 chia -> C\u1ed9ng v\u00e0 tr\u1eeb <br\/> 2. Th\u1ee9 t\u1ef1 th\u1ef1a hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> () -> [] -> {} <\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span> <br\/> Trong bi\u1ec3u th\u1ee9c kh\u00f4ng c\u00f3 d\u1ea5u ngo\u1eb7c th\u00ec ta th\u1ef1c hi\u1ec7n ph\u00e9p t\u00ednh nh\u00e2n v\u00e0 chia tr\u01b0\u1edbc, c\u1ed9ng v\u00e0 tr\u1eeb sau <br\/> N\u00ean kh\u1eb3ng \u0111\u1ecbnh ''Trong bi\u1ec3u th\u1ee9c kh\u00f4ng c\u00f3 d\u1ea5u ngo\u1eb7c v\u00e0 c\u00f3 c\u1ea3 ph\u00e9p t\u00ednh c\u1ed9ng v\u00e0 tr\u1eeb, nh\u00e2n v\u00e0 chia ta th\u1ef1c hi\u1ec7n ph\u00e9p t\u00ednh c\u1ed9ng tr\u1eeb tr\u01b0\u1edbc, nh\u00e2n v\u00e0 chia sau'' l\u00e0 SAI <\/b> <br\/> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B <\/span> <br\/>","column":2}]}],"id_ques":353},{"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/bai8/lv1/img\/4.jpg' \/><\/center> <br\/> Trong bi\u1ec3u th\u1ee9c c\u00f3 c\u00e1c d\u1ea5u ngo\u1eb7c: Ngo\u1eb7c (), ngo\u1eb7c [], ngo\u1eb7c {} <br\/> Ta th\u1ef1c hi\u1ec7n l\u1ea7n l\u01b0\u1ee3t theo th\u1ee9 t\u1ef1: () -> [] -> {} l\u00e0 \u0110\u00daNG <\/b> hay SAI <\/b>?","select":["A. \u0110\u00daNG ","B. SAI "],"hint":"","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/> TH\u1ee8 T\u1ef0 TH\u1ef0C HI\u1ec6N C\u00c1C PH\u00c9P T\u00cdNH: <\/b> <br\/> 1. Th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c kh\u00f4ng c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> L\u0169y th\u1eeba -> Nh\u00e2n v\u00e0 chia -> C\u1ed9ng v\u00e0 tr\u1eeb <br\/> 2. Th\u1ee9 t\u1ef1 th\u1ef1a hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> () -> [] -> {} <\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span> <br\/> Trong bi\u1ec3u th\u1ee9c c\u00f3 ch\u1ee9a d\u1ea5u ngo\u1eb7c ta th\u1ef1c hi\u1ec7n theo th\u1ee9 t\u1ef1: () -> [] -> {} <br\/> N\u00ean kh\u1eb3ng \u0111\u1ecbnh ''Trong bi\u1ec3u th\u1ee9c c\u00f3 c\u00e1c d\u1ea5u ngo\u1eb7c: Ngo\u1eb7c (), ngo\u1eb7c [], ngo\u1eb7c {} <br\/> Ta th\u1ef1c hi\u1ec7n l\u1ea7n l\u01b0\u1ee3t theo th\u1ee9 t\u1ef1: () -> [] -> {}'' l\u00e0 \u0110\u00daNG <\/b> <br\/> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: A <\/span> <br\/>","column":2}]}],"id_ques":354},{"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":" H\u00e3y ch\u1ecdn c\u00e1ch th\u1ef1c hi\u1ec7n ph\u00e9p t\u00ednh \u0111\u00fang","select":["$\\begin{align*} A. 3 + 6 . (5 + 4) : 3 - 7 &= 9 . (5 + 4) : 3 - 7 \\\\ &= 9 . 9 : 3 - 7 \\\\ &= 81 : 3 - 7 \\\\ &= 27 - 7 \\\\ &= 20 \\end{align*}$ ","$\\begin{align*} B. 3 + 6 . (5 + 4) : 3 - 7 &= 3 + 6 . 9 : 3 - 7 \\\\ &= 3 + 54 : 3 - 7 \\\\ &= 3 + 18 - 7 \\\\ &= 21 - 7 \\\\ &= 14 \\end{align*}$ "],"hint":"","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/> TH\u1ee8 T\u1ef0 TH\u1ef0C HI\u1ec6N C\u00c1C PH\u00c9P T\u00cdNH: <\/b> <br\/> 1. Th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c kh\u00f4ng c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> L\u0169y th\u1eeba -> Nh\u00e2n v\u00e0 chia -> C\u1ed9ng v\u00e0 tr\u1eeb <br\/> 2. Th\u1ee9 t\u1ef1 th\u1ef1a hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> () -> [] -> {} <\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span> <br\/> $\\begin{align*} 3 + 6 . (5 + 4) : 3 - 7 &= 3 + 6 . 9 : 3 - 7 \\\\ &= 3 + 54 : 3 - 7 \\\\ &= 3 + 18 - 7 \\\\ &= 21 - 7 \\\\ &= 14 \\end{align*}$ <br\/> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B <\/span> <br\/>","column":2}]}],"id_ques":355},{"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":" H\u00e3y ch\u1ecdn c\u00e1ch th\u1ef1c hi\u1ec7n ph\u00e9p t\u00ednh \u0111\u00fang","select":["$\\begin{align*} A. 9 - 5 : (8 - 3) . 2 + 6 &= 9 - 5 : 5 . 2 + 6 \\\\ &= 9 - 1 . 2 + 6 \\\\ &= 9 - 2 + 6 \\\\ &= 7 + 6 \\\\ &= 13 \\end{align*}$ ","$\\begin{align*} B. 9 - 5 : (8 - 3) . 2 + 6 &= 9 - 5 : (8 - 3) . 8 \\\\ &= 9 - 5 : 5 . 8 \\\\ &= 9 - 1 . 8 \\\\ &= 9 - 8 \\\\ &= 1 \\end{align*}$ "],"hint":"","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/> TH\u1ee8 T\u1ef0 TH\u1ef0C HI\u1ec6N C\u00c1C PH\u00c9P T\u00cdNH: <\/b> <br\/> 1. Th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c kh\u00f4ng c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> L\u0169y th\u1eeba -> Nh\u00e2n v\u00e0 chia -> C\u1ed9ng v\u00e0 tr\u1eeb <br\/> 2. Th\u1ee9 t\u1ef1 th\u1ef1a hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> () -> [] -> {} <\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span> <br\/> $\\begin{align*} 9 - 5 : (8 - 3) . 2 + 6 &= 9 - 5 : 5 . 2 + 6 \\\\ &= 9 - 1 . 2 + 6 \\\\ &= 9 - 2 + 6 \\\\ &= 7 + 6 \\\\ &= 13\\end{align*}$ <br\/> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: A <\/span> <br\/>","column":2}]}],"id_ques":356},{"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 4 + 5 . (3 + 7) : 2 - 15 l\u00e0:","select":["A. 14 ","B. 10","C. 11","D. 16"],"hint":"T\u00ednh gi\u00e1 tr\u1ecb bi\u1ec3u th\u1ee9c theo th\u1ee9 t\u1ef1 th\u1ee9c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/> TH\u1ee8 T\u1ef0 TH\u1ef0C HI\u1ec6N C\u00c1C PH\u00c9P T\u00cdNH: <\/b> <br\/> 1. Th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c kh\u00f4ng c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> L\u0169y th\u1eeba -> Nh\u00e2n v\u00e0 chia -> C\u1ed9ng v\u00e0 tr\u1eeb <br\/> 2. Th\u1ee9 t\u1ef1 th\u1ef1a hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> () -> [] -> {} <\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span> <br\/> $\\begin{align*} 4 + 5 . (3 + 7) : 2 - 15 &= 4 + 5 . 10 : 2 - 15 \\\\ &= 4 + 50 : 2 - 15 \\\\ &= 4 + 25 - 15 \\\\ &= 29 - 15 \\\\ &= 14 \\end{align*}$ <br\/> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: A <\/span> <br\/>","column":2}]}],"id_ques":357},{"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 180 - 2.[7 + 3 . (2 . 4 - 5)] l\u00e0:","select":["A. 128 ","B. 148","C. 185","D. 135"],"hint":"T\u00ednh gi\u00e1 tr\u1ecb bi\u1ec3u th\u1ee9c theo th\u1ee9 t\u1ef1 th\u1ee9c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/> TH\u1ee8 T\u1ef0 TH\u1ef0C HI\u1ec6N C\u00c1C PH\u00c9P T\u00cdNH: <\/b> <br\/> 1. Th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c kh\u00f4ng c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> L\u0169y th\u1eeba -> Nh\u00e2n v\u00e0 chia -> C\u1ed9ng v\u00e0 tr\u1eeb <br\/> 2. Th\u1ee9 t\u1ef1 th\u1ef1a hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> () -> [] -> {} <\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span> <br\/> $\\begin{align*} 180 - 2.[7 + 3 . (2 . 4 - 5)] &= 180 - 2.[ 7 + 3.(8 - 5)] \\\\ &= 180 - 2.[7 + 3 . 3] \\\\ &= 180 - 2. [7 + 9] \\\\ &= 180 - 2 . 16 \\\\ &= 180 - 32 \\\\ &= 148 \\end{align*}$ <br\/> <br\/> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B <\/span>","column":2}]}],"id_ques":358},{"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":[[["="]]],"list":[{"point":5,"width":50,"content":"","type_input":"","ques":"H\u00e3y \u0111i\u1ec1n d\u1ea5u th\u00edch h\u1ee3p v\u00e0o \u00f4 tr\u1ed1ng. <br\/> <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai8/lv1/img\/7.jpg' \/><\/center> <br\/> $4^2 + 3^2$ _input_ $5^2$","hint":"T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c \u1edf VP v\u00e0 VT v\u00e0 so s\u00e1nh","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/> T\u00ednh k\u1ebft qu\u1ea3 \u1edf c\u1ea3 hai v\u1ebf v\u00e0 so s\u00e1nh k\u1ebft qu\u1ea3<\/span> <br\/><br\/> B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3: $4^2 + 3^2 = 16 + 9 = 25$ <br\/> $5^2 = 25$ <br\/> V\u00ec 25 = 25 n\u00ean $4^2 + 3^2 = 5^2$ <br\/> V\u1eady d\u1ea5u c\u1ea7n \u0111i\u1ec1n l\u00e0: = <\/span>"}]}],"id_ques":359},{"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":[[["<"]]],"list":[{"point":5,"width":50,"content":"","type_input":"","ques":"H\u00e3y \u0111i\u1ec1n d\u1ea5u th\u00edch h\u1ee3p v\u00e0o \u00f4 tr\u1ed1ng. <br\/> <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop6/toan/daiso/bai8/lv1/img\/7.jpg' \/><\/center> <br\/> $8^2 + 2^2$ _input_ $10^2$","hint":"T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c \u1edf VP v\u00e0 VT v\u00e0 so s\u00e1nh","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/> T\u00ednh k\u1ebft qu\u1ea3 \u1edf c\u1ea3 hai v\u1ebf v\u00e0 so s\u00e1nh k\u1ebft qu\u1ea3<\/span> <br\/><br\/> B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3: $8^2 + 2^2 = 64 + 4 = 68$ <br\/> $10^2 = 100$ <br\/> V\u00ec 68 < 100 n\u00ean $8^2 + 2^2 < 10^2$ <br\/> V\u1eady d\u1ea5u c\u1ea7n \u0111i\u1ec1n l\u00e0: < <\/span>"}]}],"id_ques":360},{"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":[[["16"]]],"list":[{"point":5,"width":50,"content":"","type_input":"","ques":"T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c. <br\/> $2^3 . 3 - 5 . 2^2 + 3 . 4$ = _input_ ","hint":"T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c theo th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/> TH\u1ee8 T\u1ef0 TH\u1ef0C HI\u1ec6N C\u00c1C PH\u00c9P T\u00cdNH: <\/b> <br\/> 1. Th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c kh\u00f4ng c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> L\u0169y th\u1eeba -> Nh\u00e2n v\u00e0 chia -> C\u1ed9ng v\u00e0 tr\u1eeb <br\/> 2. Th\u1ee9 t\u1ef1 th\u1ef1a hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> () -> [] -> {} <\/span> <br\/><br\/> B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3: <br\/> $\\begin{align*} & 2^3 . 3 - 5 . 2^2 + 3 . 4 \\\\ =& 8 . 3 - 5 . 4 + 3 . 4 \\\\ =& 24 - 20 + 12 \\\\ =& 16 \\end{align*}$ <br\/> V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u00e0: 16 <\/span>"}]}],"id_ques":361},{"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":[[["4"]]],"list":[{"point":5,"width":50,"content":"","type_input":"","ques":"T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c. <br\/> $3^2 . 2^3 : 6^2 . 2^3 : 4 $ = _input_ ","hint":"T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c theo th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/> TH\u1ee8 T\u1ef0 TH\u1ef0C HI\u1ec6N C\u00c1C PH\u00c9P T\u00cdNH: <\/b> <br\/> 1. Th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c kh\u00f4ng c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> L\u0169y th\u1eeba -> Nh\u00e2n v\u00e0 chia -> C\u1ed9ng v\u00e0 tr\u1eeb <br\/> 2. Th\u1ee9 t\u1ef1 th\u1ef1a hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> () -> [] -> {} <\/span> <br\/><br\/> B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3: <br\/> $\\begin{align*} & 3^2 . 2^3 : 6^2 . 2^3 : 4 \\\\ =& 9 . 8 : 36 . 8 : 4 \\\\ =& 72 : 36 . 8 : 4 \\\\ =& 2 . 8 : 4 \\\\ =& 16 : 4 \\\\ =& 4 \\end{align*}$ <br\/> V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u00e0: 4 <\/span>"}]}],"id_ques":362},{"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":[[["3297"]]],"list":[{"point":5,"width":50,"content":"","type_input":"","ques":"T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c. <br\/> $11^3 . 5 - 23 . (181 - 35) $ = _input_ ","hint":"T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c theo th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/> TH\u1ee8 T\u1ef0 TH\u1ef0C HI\u1ec6N C\u00c1C PH\u00c9P T\u00cdNH: <\/b> <br\/> 1. Th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c kh\u00f4ng c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> L\u0169y th\u1eeba -> Nh\u00e2n v\u00e0 chia -> C\u1ed9ng v\u00e0 tr\u1eeb <br\/> 2. Th\u1ee9 t\u1ef1 th\u1ef1a hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> () -> [] -> {} <\/span> <br\/><br\/> B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3: <br\/> $\\begin{align*} & 11^3 . 5 - 23 . (181 - 35) \\\\ =& 11^3 . 5 - 23 . 146 \\\\ =& 1331 . 5 - 3358 \\\\ =& 6655 - 3358 \\\\ =& 3297 \\end{align*}$ <br\/> V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u00e0: 3297 <\/span>"}]}],"id_ques":363},{"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":" Cho bi\u1ec3u th\u1ee9c A = 3 . (17 + 69 . 12) <br\/> Gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c A b\u1eb1ng 2535 \u0110\u00daNG <\/b> hay SAI <\/b>?","select":["A. \u0110\u00daNG ","B. SAI"],"hint":"T\u00ednh gi\u00e1 tr\u1ecb bi\u1ec3u th\u1ee9c theo th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/> TH\u1ee8 T\u1ef0 TH\u1ef0C HI\u1ec6N C\u00c1C PH\u00c9P T\u00cdNH: <\/b> <br\/> 1. Th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c kh\u00f4ng c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> L\u0169y th\u1eeba -> Nh\u00e2n v\u00e0 chia -> C\u1ed9ng v\u00e0 tr\u1eeb <br\/> 2. Th\u1ee9 t\u1ef1 th\u1ef1a hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> () -> [] -> {} <\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span> <br\/> $\\begin{align*} 3 . (17 + 69 . 12) &= 3 . (17 + 828) \\\\ &= 3 . 845 \\\\ &= 2535 \\end{align*}$ <br\/> V\u1eady kh\u1eb3ng \u0111\u1ecbnh ''Gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c A b\u1eb1ng 2535'' l\u00e0 \u0110\u00daNG <\/b> <br\/> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: A <\/span> <br\/>","column":2}]}],"id_ques":364},{"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":" Cho bi\u1ec3u th\u1ee9c B = $11^2 + 12^2 + 13^2$ <br\/> Gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c B b\u1eb1ng 435 \u0110\u00daNG <\/b> hay SAI <\/b>?","select":["A. \u0110\u00daNG ","B. SAI"],"hint":"T\u00ednh gi\u00e1 tr\u1ecb bi\u1ec3u th\u1ee9c theo th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/> TH\u1ee8 T\u1ef0 TH\u1ef0C HI\u1ec6N C\u00c1C PH\u00c9P T\u00cdNH: <\/b> <br\/> 1. Th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c kh\u00f4ng c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> L\u0169y th\u1eeba -> Nh\u00e2n v\u00e0 chia -> C\u1ed9ng v\u00e0 tr\u1eeb <br\/> 2. Th\u1ee9 t\u1ef1 th\u1ef1a hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh \u0111\u1ed1i v\u1edbi bi\u1ec3u th\u1ee9c c\u00f3 d\u1ea5u ngo\u1eb7c: <br\/> () -> [] -> {} <\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span> <br\/> $\\begin{align*} & 11^2 + 12^2 + 13^2 \\\\ &= 121 + 144 + 169 \\\\ &= 434 \\end{align*}$ <br\/> V\u1eady kh\u1eb3ng \u0111\u1ecbnh ''Gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c B b\u1eb1ng 435'' l\u00e0 SAI <\/b> <br\/> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B <\/span> <br\/>","column":2}]}],"id_ques":365},{"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: 963 + (417 - x) = 1375","select":["A. x = 3 ","B. x = 5","C. x = 15 ","D. x = 12"],"hint":"Mu\u1ed1n t\u00ecm s\u1ed1 h\u1ea1ng ch\u01b0a bi\u1ebft ta l\u1ea5y t\u1ed5ng tr\u1eeb \u0111i s\u1ed1 h\u1ea1ng \u0111\u00e3 bi\u1ebft","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/> B\u01b0\u1edbc 1: <\/b> Trong bi\u1ec3u th\u1ee9c tr\u00ean (417 - x) l\u00e0 s\u1ed1 h\u1ea1ng ch\u01b0a bi\u1ebft <br\/> Mu\u1ed1n t\u00ecm s\u1ed1 h\u1ea1ng ch\u01b0a bi\u1ebft ta l\u1ea5y t\u1ed5ng tr\u1eeb \u0111i s\u1ed1 h\u1ea1ng \u0111\u00e3 bi\u1ebft <br\/> B\u01b0\u1edbc 2: <\/b> Trong bi\u1ec3u th\u1ee9c tr\u00ean x l\u00e0 s\u1ed1 tr\u1eeb ch\u01b0a bi\u1ebft <br\/> Mu\u1ed1n t\u00ecm s\u1ed1 tr\u1eeb ch\u01b0a bi\u1ebft ta l\u1ea5y s\u1ed1 b\u1ecb tr\u1eeb tr\u1eeb \u0111i hi\u1ec7u <\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span> <br\/> $\\begin{align*} 963 + (417 - x) &= 1375 \\\\ 417 - x &= 1375 - 963 \\\\ 417 - x &= 412 \\\\ x &= 417 - 412 \\\\ x &= 5 \\end{align*}$ <br\/> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B <\/span> <br\/>","column":2}]}],"id_ques":366},{"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\u00ecm x bi\u1ebft: 1158 - 35.(x + 1) = 178","select":["A. x = 27 ","B. x = 28","C. x = 29 ","D. x = 30"],"hint":"Trong bi\u1ec3u th\u1ee9c tr\u00ean 35.(x + 1) l\u00e0 s\u1ed1 tr\u1eeb ch\u01b0a bi\u1ebft, mu\u1ed1n t\u00ecm s\u1ed1 tr\u1eeb ch\u01b0a bi\u1ebft ta l\u1ea5y s\u1ed1 b\u1ecb tr\u1eeb tr\u1eeb \u0111i hi\u1ec7u","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/> B\u01b0\u1edbc 1: <\/b> Trong bi\u1ec3u th\u1ee9c tr\u00ean 35.(x + 1) l\u00e0 s\u1ed1 tr\u1eeb ch\u01b0a bi\u1ebft <br\/> Mu\u1ed1n t\u00ecm s\u1ed1 tr\u1eeb ch\u01b0a bi\u1ebft ta l\u1ea5y s\u1ed1 b\u1ecb tr\u1eeb tr\u1eeb \u0111i hi\u1ec7u <br\/> B\u01b0\u1edbc 2: <\/b> Bi\u1ebfn \u0111\u1ed5i ti\u1ebfp bi\u1ec3u th\u1ee9c tr\u00ean ta c\u00f3 x l\u00e0 s\u1ed1 h\u1ea1ng ch\u01b0a bi\u1ebft<br\/> Mu\u1ed1n t\u00ecm s\u1ed1 h\u1ea1ng ch\u01b0a bi\u1ebft ta l\u1ea5y t\u1ed5ng tr\u1eeb \u0111i s\u1ed1 h\u1ea1ng \u0111\u00e3 bi\u1ebft <\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span> <br\/> $\\begin{align*} 1158 - 35.(x + 1) &= 178 \\\\ 35.(x + 1) &= 1158 - 178 \\\\ 35.(x + 1) &= 980 \\\\ x + 1 &= 980 : 35 \\\\ x + 1 &= 28 \\\\ x &= 28 - 1 \\\\ x &= 27 \\end{align*}$ <br\/> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: A <\/span> <br\/>","column":2}]}],"id_ques":367},{"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: $4^3.(115 - 38) + x = 9120$","select":["A. x = 4129 ","B. x = 4192","C. x = 4195","D. x = 4193"],"hint":"Trong bi\u1ec3u th\u1ee9c tr\u00ean x l\u00e0 s\u1ed1 h\u1ea1ng ch\u01b0a bi\u1ebft, mu\u1ed1n t\u00ecm s\u1ed1 h\u1ea1ng ch\u01b0a bi\u1ebft ta l\u1ea5y t\u1ed5ng tr\u1eeb \u0111i s\u1ed1 h\u1ea1ng \u0111\u00e3 bi\u1ebft","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/> B\u01b0\u1edbc 1: <\/b> T\u00ednh gi\u00e1 tr\u1ecb bi\u1ec3u th\u1ee9c $4^3 . (115 - 38)$ theo th\u1ee9 t\u1ef1 th\u1ef1c hi\u1ec7n c\u00e1c ph\u00e9p t\u00ednh <br\/> B\u01b0\u1edbc 2: <\/b> Trong bi\u1ec3u th\u1ee9c tr\u00ean ta c\u00f3 x l\u00e0 s\u1ed1 h\u1ea1ng ch\u01b0a bi\u1ebft<br\/> Mu\u1ed1n t\u00ecm s\u1ed1 h\u1ea1ng ch\u01b0a bi\u1ebft ta l\u1ea5y t\u1ed5ng tr\u1eeb \u0111i s\u1ed1 h\u1ea1ng \u0111\u00e3 bi\u1ebft <\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span> <br\/> $\\begin{align*} 4^3 . (115 - 38) + x &= 9120 \\\\ 4^3 . 77 + x &= 9120 \\\\ 64 . 77 + x &= 9120 \\\\ 4928 + x &= 9120 \\\\ x &= 9120 - 4928 \\\\ x &= 4192 \\end{align*}$ <br\/>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B <\/span> <br\/>","column":2}]}],"id_ques":368},{"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":" h\u00e3y ch\u1ecdn s\u1ed1 th\u00edch h\u1ee3p thay cho d\u1ea5u ?<\/span> <br\/> 68 : ?<\/span> - 11 = 6","select":["A. 3 ","B. 4","C. 5","D. 6"],"hint":" Coi ?<\/span> nh\u01b0 m\u1ed9t s\u1ed1 c\u1ea7n t\u00ecm","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/> B\u01b0\u1edbc 1: <\/b> Coi 68 : ?<\/span> l\u00e0 s\u1ed1 b\u1ecb tr\u1eeb ch\u01b0a bi\u1ebft <br\/> Mu\u1ed1n t\u00ecm s\u1ed1 b\u1ecb tr\u1eeb ch\u01b0a bi\u1ebft ta l\u1ea5y hi\u1ec7u c\u1ed9ng v\u1edbi s\u1ed1 tr\u1eeb <br\/> B\u01b0\u1edbc 2: <\/b> ?<\/span> l\u00e0 s\u1ed1 chia ch\u01b0a bi\u1ebft <br\/> Mu\u1ed1n t\u00ecm s\u1ed1 chia ch\u01b0a l\u1ea5y s\u1ed1 b\u1ecb chia chia cho th\u01b0\u01a1ng <\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span> <br\/> $\\begin{align*} 68 : ? - 11 &= 6 \\\\ 68 : ? &= 6 + 11 \\\\ 68 : ? &= 17 \\\\ ? &= 68 : 17 \\\\ ? &= 4 \\end{align*}$ <br\/>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B <\/span> <br\/>","column":2}]}],"id_ques":369},{"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":" h\u00e3y ch\u1ecdn s\u1ed1 th\u00edch h\u1ee3p thay cho d\u1ea5u ?<\/span> <br\/> 55 : 5 . ?<\/span> = 121","select":["A. 11 ","B. 10","C. 9","D. 8"],"hint":" ?<\/span> l\u00e0 th\u1eeba s\u1ed1 ch\u01b0a bi\u1ebft, 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","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/> B\u01b0\u1edbc 1: <\/b> Trong bi\u1ec3u th\u1ee9c ch\u1ec9 c\u00f3 nh\u00e2n v\u00e0 chia ta th\u1ef1c hi\u1ec7n ph\u00e9p t\u00ednh l\u1ea7n l\u01b0\u1ee3t t\u1eeb tr\u00e1i qua ph\u1ea3i <br\/> T\u00ednh 55 : 5 = ? <br\/> B\u01b0\u1edbc 2: <\/b> ?<\/span>l\u00e0 th\u1eeba s\u1ed1 ch\u01b0a bi\u1ebft <br\/> 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 <\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span> <br\/> $\\begin{align*} 55 : 5 . ? &= 121 \\\\ 11 . ? &= 121 \\\\ ? &= 121 : 11 \\\\ ? &= 11 \\end{align*}$ <br\/>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: A <\/span> <br\/>","column":2}]}],"id_ques":370}],"lesson":{"save":0,"level":1}}

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Câu hỏi này theo dạng chọn đáp án đúng, sau khi đọc xong câu hỏi, bạn bấm vào một trong số các đáp án mà chương trình đưa ra bên dưới, sau đó bấm vào nút gửi để kiểm tra đáp án và sẵn sàng chuyển sang câu hỏi kế tiếp

Trả lời đúng trong khoảng thời gian quy định bạn sẽ được + số điểm như sau:
Trong khoảng 1 phút đầu tiên	+ 5 điểm
Trong khoảng 1 phút -> 2 phút	+ 4 điểm
Trong khoảng 2 phút -> 3 phút	+ 3 điểm
Trong khoảng 3 phút -> 4 phút	+ 2 điểm
Trong khoảng 4 phút -> 5 phút	+ 1 điểm

Quá 5 phút: không được cộng điểm

Tổng thời gian làm mỗi câu (không giới hạn)

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