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{"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":[[["79"]]],"list":[{"point":5,"width":50,"type_input":"","ques":"T\u00ecm x bi\u1ebft: 5.(x - 9) = 350 <br\/> V\u1eady x = _input_","hint":"Coi x - 9 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> Coi x - 9 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<br\/> B\u01b0\u1edbc 2: <\/b> x l\u00e0 s\u1ed1 b\u1ecb tr\u1eeb ch\u01b0a bi\u1ebft <br\/> Mu\u1ed1n t\u00ecm s\u1ed1 b\u1ecb tr\u1eeb ta l\u1ea5y hi\u1ec7u c\u1ed9ng v\u1edbi s\u1ed1 tr\u1eeb<\/span><br\/> <br\/> B\u00e0i gi\u1ea3i:<\/span><br\/> $\\begin{align*} 5. (x - 9) &= 350 \\\\ x - 9 &= 350 : 5 \\\\ x - 9 &= 70 \\\\ x &= 70 + 9 \\\\ x &= 79 \\end{align*}$ <br\/>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u00e0: 79<\/span>"}]}],"id_ques":221},{"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,"type_input":"","ques":"T\u00ecm x bi\u1ebft: 11.(x - 9) = 77<br\/> V\u1eady x = _input_","hint":"Coi x - 9 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> Coi x - 9 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<br\/> B\u01b0\u1edbc 2: <\/b> x l\u00e0 s\u1ed1 b\u1ecb tr\u1eeb ch\u01b0a bi\u1ebft <br\/> Mu\u1ed1n t\u00ecm s\u1ed1 b\u1ecb tr\u1eeb ta l\u1ea5y hi\u1ec7u c\u1ed9ng v\u1edbi s\u1ed1 tr\u1eeb<\/span><br\/> <br\/> B\u00e0i gi\u1ea3i:<\/span><br\/> $\\begin{align*} 11. (x - 9) &= 77 \\\\ x - 9 &= 77 : 11 \\\\ x - 9 &= 7\\\\ x &= 7 + 9 \\\\ x &= 16 \\end{align*}$ <br\/>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u00e0: 16<\/span>"}]}],"id_ques":222},{"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":[[["79"]]],"list":[{"point":5,"width":50,"type_input":"","ques":"T\u00ecm x bi\u1ebft: 2.(x - 51) = 56<br\/> V\u1eady x = _input_","hint":"Coi x - 51 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> Coi x - 51 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<br\/> B\u01b0\u1edbc 2: <\/b> x l\u00e0 s\u1ed1 b\u1ecb tr\u1eeb ch\u01b0a bi\u1ebft <br\/> Mu\u1ed1n t\u00ecm s\u1ed1 b\u1ecb tr\u1eeb ta l\u1ea5y hi\u1ec7u c\u1ed9ng v\u1edbi s\u1ed1 tr\u1eeb<\/span><br\/> <br\/> B\u00e0i gi\u1ea3i:<\/span><br\/> $\\begin{align*} 2 . (x - 51) &= 56 \\\\ x - 51 &= 56 : 2 \\\\ x - 51 &= 28\\\\ x &= 28 + 51 \\\\ x &= 79 \\end{align*}$ <br\/>V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u00e0: 79<\/span>"}]}],"id_ques":223},{"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":[[["810"],["41"],["40500"]]],"list":[{"point":5,"width":50,"type_input":"","ques":"H\u00e3y \u0111i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o \u00f4 tr\u1ed1ng \u0111\u1ec3 ho\u00e0n th\u00e0nh ph\u00e9p t\u00ednh sau b\u1eb1ng c\u00e1ch h\u1ee3p l\u00fd: <br\/>810 . 41 + 810 . 9 = _input_ . (_input_ + 9) =_input_","hint":"Nh\u00f3m 810 ra ngo\u00e0i ngo\u1eb7c","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/>V\u00ec c\u1ea3 hai s\u1ed1 h\u1ea1ng \u0111\u1ec1u c\u00f3 810 n\u00ean ta nh\u00f3m 810 ra ngo\u00e0i ngo\u1eb7c <\/span><br\/> <br\/> B\u00e0i gi\u1ea3i:<\/span><br\/> $\\begin{align*} 810 . 41 + 810 . 9 &= 810 . (41 + 9) \\\\ &= 810 . 50 \\\\ &= 40500 \\end{align*}$ <br\/> V\u1eady c\u00e1c s\u1ed1 c\u1ea7n \u0111i\u1ec1n theo th\u1ee9 t\u1ef1 t\u1eeb tr\u00e1i sang ph\u1ea3i t\u1eeb tr\u00ean xu\u1ed1ng d\u01b0\u1edbi l\u00e0: 810; 41; 40500<\/span>"}]}],"id_ques":224},{"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":[[["350"],["7"],["130"]]],"list":[{"point":5,"width":50,"type_input":"","ques":"H\u00e3y \u0111i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o \u00f4 tr\u1ed1ng \u0111\u1ec3 ho\u00e0n th\u00e0nh ph\u00e9p t\u00ednh sau b\u1eb1ng c\u00e1ch h\u1ee3p l\u00fd: <br\/> (350 + 560) : 7 =_input_ : 7 + 560 : _input_ =_input_","hint":"(a + b) : c = a : c + b : c","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/>Khi chia 1 t\u1ed5ng cho 1 s\u1ed1 ta chia t\u1eebng s\u1ed1 h\u1ea1ng c\u1ee7a t\u1ed5ng cho s\u1ed1 \u0111\u00f3 <br\/> (a + b) : c = a : c + b : c <\/span><br\/> <br\/> B\u00e0i gi\u1ea3i:<\/span><br\/> $\\begin{align*} (350 + 560) : 7 &= 350 : 7 + 560 : 7 \\\\ &= 50 + 80 \\\\ &= 130 \\end{align*}$ <br\/> V\u1eady c\u00e1c s\u1ed1 c\u1ea7n \u0111i\u1ec1n theo th\u1ee9 t\u1ef1 t\u1eeb tr\u00e1i sang ph\u1ea3i t\u1eeb tr\u00ean xu\u1ed1ng d\u01b0\u1edbi l\u00e0: 350; 7; 130<\/span>"}]}],"id_ques":225},{"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":" Cho t\u1eadp h\u1ee3p M g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c s\u1ed1 t\u1ef1 nhi\u00ean x = a : b trong \u0111\u00f3 a $\\in$ {42; 63}; b $\\in$ {7; 3}","select":["A. M = {6; 21}","B. M = {6; 14; 63} ","C. M = {42; 9; 21} ","D. M = {6; 14; 9; 21} "],"hint":"L\u1ea5y m\u1ed7i ph\u1ea7n t\u1eed thu\u1ed9c t\u1eadp h\u1ee3p {42; 63} chia l\u1ea7n l\u01b0\u1ee3t v\u1edbi c\u00e1c ph\u1ea7n t\u1eed c\u1ee7a t\u1eadp h\u1ee3p {7; 3}","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/>L\u1ea5y 42 chia l\u1ea7n l\u01b0\u1ee3t cho 7; 3 <br\/>42 : 7 = ?; 42 : 3 = ? <br\/> L\u1ea5y 63 chia l\u1ea7n l\u01b0\u1ee3t cho 7; 3 <br\/> 63 : 7 = ?; 63 : 3 = ?<\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span> <br\/> <br\/> T\u1eadp h\u1ee3p M g\u1ed3m c\u00e1c ph\u1ea7n t\u1eed x nh\u01b0 sau: <br\/> x = 42 : 7 = 6<br\/> x = 42 : 3 = 14 <br\/> x = 63 : 7 = 9 <br\/> x = 63 : 3 = 21 <br\/> V\u1eady M = {6; 14; 9; 21} <br\/> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: D <\/span>","column":2}]}],"id_ques":226},{"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 t\u1eadp h\u1ee3p M g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c s\u1ed1 t\u1ef1 nhi\u00ean x = a : b trong \u0111\u00f3 a $\\in$ {64; 40}; b $\\in$ {8; 4}","select":["A. M = {64; 40; 8; 4}","B. M = {8; 16; 5; 10} ","C. M = {8; 16; 8; 4} ","D. M = {64; 40; 8; 16} "],"hint":"L\u1ea5y m\u1ed7i ph\u1ea7n t\u1eed thu\u1ed9c t\u1eadp h\u1ee3p {64; 40} chia l\u1ea7n l\u01b0\u1ee3t v\u1edbi c\u00e1c ph\u1ea7n t\u1eed c\u1ee7a t\u1eadp h\u1ee3p {8; 4}","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/>L\u1ea5y 64 chia l\u1ea7n l\u01b0\u1ee3t cho 8; 4 <br\/>64 : 8 = ?; 64 : 4 = ? <br\/> L\u1ea5y 40 chia l\u1ea7n l\u01b0\u1ee3t cho 8; 4 <br\/> 40 : 8 = ?; 40 : 4 = ?<\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span> <br\/> <br\/> T\u1eadp h\u1ee3p M g\u1ed3m c\u00e1c ph\u1ea7n t\u1eed x nh\u01b0 sau: <br\/> x = 64 : 8 = 8<br\/> x = 64 : 4 = 16 <br\/> x = 40 : 8 = 5 <br\/> x = 40 : 4 = 10 <br\/> V\u1eady M = {8; 16; 5; 10} <br\/> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B <\/span>","column":2}]}],"id_ques":227},{"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":" Ch\u1ecdn ph\u00e9p t\u00ednh c\u00f3 k\u1ebft qu\u1ea3 b\u1eb1ng k\u1ebft qu\u1ea3 c\u1ee7a ph\u00e9p t\u00ednh 3 . 5 . 7 . 11 . 17","select":["A. 35 . 7 . 17","B. 33 . 119 . 5 ","C. 1309 . 5 ","D. 225 . 11 . 3 "],"hint":"Ph\u00e2n t\u00edch c\u00e1c s\u1ed1 trong t\u1eebng \u0111\u00e1p \u00e1n v\u00e0 so s\u00e1nh v\u1edbi 3 . 5 . 7 . 11 . 17","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/>A - T\u00e1ch 35 = 5 . 7 r\u1ed3i so s\u00e1nh t\u00edch v\u1edbi 3 . 5 . 7 . 11 . 17 <br\/> B - T\u00e1ch 33 = 11 . 3; 119 = 7 . 17 r\u1ed3i nh\u00f3m c\u00e1c th\u1eeba s\u1ed1 l\u1ea1i v\u00e0 so s\u00e1nh v\u1edbi 3 . 5 . 7 . 11 . 17 <br\/>C - T\u00e1ch 1309 = 11 . 7 . 17 r\u1ed3i so s\u00e1nh t\u00edch 1309 . 5 v\u1edbi 3 . 5. 7 . 11 . 17 <br\/> D - T\u00e1ch 225 = 5 . 5 . 9 r\u1ed3i nh\u00f3m l\u1ea1i v\u00e0 so s\u00e1nh v\u1edbi 3 . 5 . 7 . 11 . 17 <\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span> <br\/> <br\/> A - Ta c\u00f3: 35 . 7 . 17 <\/b> = (3 . 5) . 7 . 17 = 3 . 5 . 7 . 17 < 3 . 5 . 7 . 11 . 17 <\/b> <br\/> B - 33 . 119 . 5 <\/b> = (3 . 11) . (7 . 17) . 5 = 3. 5 . 7 . 11 . 17 = 3 . 5 . 7 . 11 . 17 <\/b><br\/> C - 1309 . 5 = (7 . 11 . 17) . 5 = 5 . 7 . 11 . 17 < 3 . 5 . 7 . 11 . 17 <\/b> <br\/> D - 225 . 11 . 3 = (5 . 5 . 9) . 11 . 3 = 3 . 5 . 5 . 9 . 11 < 3 . 5 . 7 . 11 . 17 <\/b><br\/> V\u1eady ph\u00e9p t\u00ednh c\u00f3 k\u1ebft qu\u1ea3 b\u1eb1ng k\u1ebft qu\u1ea3 c\u1ee7a ph\u00e9p t\u00ednh 3 . 5 . 7 . 11 . 17 l\u00e0: B. 33 . 119 . 5 <\/span>","column":2}]}],"id_ques":228},{"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":" Ch\u1ecdn ph\u00e9p t\u00ednh c\u00f3 k\u1ebft qu\u1ea3 b\u1eb1ng k\u1ebft qu\u1ea3 c\u1ee7a ph\u00e9p t\u00ednh 77175 : 21 : 3 : 7","select":["A. 3675 : 35","B. 5145 : 5 : 7","C. 11025 : 63 ","D. 11025 : 5 : 7 "],"hint":"a : b : c = a : (b . c)","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/>V\u00ec a : b : c = a : (b . c) <br\/> \u00c1p d\u1ee5ng t\u00ednh ch\u1ea5t tr\u00ean \u0111\u1ec3 ph\u00e2n t\u00edch c\u00e1c \u0111\u00e1p \u00e1n v\u00e0 ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang<\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span> <br\/> <br\/> Ngo\u00e0i c\u00e1ch t\u00ednh k\u1ebft qu\u1ea3 c\u1ee7a t\u1eebng ph\u00e9p t\u00ednh ta c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1ch sau: <br\/> A - 3675 : 35 = (77175 : 21) : 35 = 77175 : 21 : (7 . 5) = 77175 : 21 : 5 : 7 <br\/> V\u00ec 77175 : 21 : 5 : 7 < 77175 : 21 : 3 : 7 <br\/> N\u00ean 3675 : 35 < 77175 : 21 : 3 : 7 <\/b> <br\/><br\/> B - 5145 : 5 : 7 = 1029 : 7 = (64827 : 3 : 21) : 7 = 64827 : 21 : 3 : 7 <br\/> V\u00ec 64827 : 21 : 3 : 7 < 77175 : 21 : 3 : 7 <br\/> N\u00ean 5145 : 5 : 7 < 77175 : 21 : 3 : 7 <\/b><br\/><br\/> C - 11025 : 63 = 11025 : (7 . 9) = 11025 : 7 : 9 = 1225 : 7 = (77175 : 3 : 21) : 7 = 77175 : 21 : 3 : 7 <br\/> N\u00ean 11025 : 63 = 77175 : 21 : 3 : 7 <\/b> <br\/><br\/> D - 11025 : 5 : 7 = 11025 : (5 . 7) = 11025 : 35 <br\/> V\u00ec 11025 : 63 = 77175 : 21 : 3 : 7 <br\/> N\u00ean 11025 : 5 : 7 > 77175 : 3 : 7 <\/b><br\/> C . 11025 : 63<\/span>","column":2}]}],"id_ques":229},{"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/bai5/lv2/img\/1.png' \/><\/center> <br\/> Hi\u1ec7u c\u1ee7a 471205 v\u00e0 83140 l\u00e0:","select":["A. 388605","B. 388066","C. 388065","D. 388070"],"hint":"T\u00ednh 471205 - 83140 = ?","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/>T\u00ednh 471205 - 83140 = ? <\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span><br\/> Hi\u1ec7u c\u1ee7a 471205 v\u00e0 83140 l\u00e0: <br\/> 471205 - 83140 = 388065 <br\/> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: C. 388065 <\/span>","column":2}]}],"id_ques":230},{"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/bai5/lv2/img\/1.png' \/><\/center> <br\/> Hi\u1ec7u c\u1ee7a s\u1ed1 li\u1ec1n tr\u01b0\u1edbc s\u1ed1 384190 v\u00e0 255918 l\u00e0:","select":["A. 128217","B. 128269","C. 128272","D. 128271"],"hint":"T\u00ecm s\u1ed1 li\u1ec1n tr\u01b0\u1edbc s\u1ed1 384190 r\u1ed3i tr\u1eeb \u0111i 255918","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/> B\u01b0\u1edbc 1: <\/b> T\u00ecm s\u1ed1 li\u1ec1n tr\u01b0\u1edbc s\u1ed1 384190 <br\/> B\u01b0\u1edbc 2: <\/b> T\u00ednh hi\u1ec7u c\u1ee7a s\u1ed1 li\u1ec1n tr\u01b0\u1edbc s\u1ed1 384190 v\u00e0 255918 <\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span> <br\/> <br\/> S\u1ed1 li\u1ec1n tr\u01b0\u1edbc s\u1ed1 384190 l\u00e0: 384189 <br\/> Hi\u1ec7u c\u1ee7a s\u1ed1 li\u1ec1n tr\u01b0\u1edbc s\u1ed1 384190 v\u00e0 255918 l\u00e0: <br\/> 384189 - 255918 = 128271 <br\/>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: D. 128271 <\/span>","column":2}]}],"id_ques":231},{"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/bai5/lv2/img\/1.png' \/><\/center> <br\/> Th\u01b0\u01a1ng c\u1ee7a 13000 v\u00e0 40 l\u00e0:","select":["A. 328","B. 325","C. 320","D. 327"],"hint":"T\u00ednh 13000 : 40 = ?","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/>T\u00ednh 13000 : 40 = ?<\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span> <br\/> <br\/> Th\u01b0\u01a1ng c\u1ee7a 13000 v\u00e0 40 l\u00e0: <br\/> 13000 : 40 = 325<br\/>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B. 325 <\/span>","column":2}]}],"id_ques":232},{"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/bai5/lv2/img\/5.jpg' \/><\/center> <br\/> H\u00e3y ch\u1ecdn d\u1ea5u th\u00edch h\u1ee3p thay cho d\u1ea5u ?<\/span> <br\/> 33370 : 142 ?<\/span> 235","select":["A. >","B. <","C. ="],"hint":"T\u00ednh 33370 : 142 r\u1ed3i so s\u00e1nh v\u1edbi 235 ?","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/>T\u00ednh 33370 : 142 = ? r\u1ed3i so s\u00e1nh v\u1edbi 235 <\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span> <br\/> <br\/> Ta c\u00f3: 33370 : 142 = 235 <br\/> V\u00ec 235 = 235 <br\/> N\u00ean 33370 : 142 = 235 <br\/>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: C. = <\/span>","column":3}]}],"id_ques":233},{"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/bai5/lv2/img\/5.jpg' \/><\/center> <br\/> H\u00e3y ch\u1ecdn d\u1ea5u th\u00edch h\u1ee3p thay cho d\u1ea5u ?<\/span> <br\/> 953874 - 368752 ?<\/span> 53124 + 10238","select":["A. >","B. <","C. ="],"hint":"T\u00ednh \u1edf VT v\u00e0 VP r\u1ed3i so s\u00e1nh k\u1ebft qu\u1ea3 ?","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/>T\u00ednh 953874 - 368752 = ? v\u00e0 53124 + 10238 = ? <br\/> R\u1ed3i so s\u00e1nh c\u00e1c k\u1ebft qu\u1ea3 v\u1eeba t\u00ednh<\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span> <br\/> <br\/> Ta c\u00f3: 953874 - 368752 = 585122 <br\/> 53124 + 10238 = 63362 <br\/> V\u00ec 585122 > 63362 <br\/> N\u00ean 953874 - 368752 > 53124 + 10238 <br\/>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: A. > <\/span>","column":3}]}],"id_ques":234},{"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 m\u1ed9t s\u1ed1 bi\u1ebft s\u1ed1 \u0111\u00f3 l\u00e0 hi\u1ec7u c\u1ee7a 971 538 v\u00e0 223 542 r\u1ed3i gi\u1ea3m \u0111i 2 l\u1ea7n. <br\/> S\u1ed1 c\u1ea7n t\u00ecm l\u00e0:","select":["A. 373 599","B. 373 998","C. 373 899","D. 573 999"],"hint":"Gi\u1ea3m \u0111i 2 l\u1ea7n t\u1ee9c l\u00e0 ta th\u1ef1c hi\u1ec7n ph\u00e9p t\u00ednh chia cho 2","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/>Hi\u1ec7u c\u1ee7a 971 538 v\u00e0 223 542 t\u1ee9c l\u00e0: 971 538 - 223 542 <br\/> Gi\u1ea3m \u0111i 2 l\u1ea7n t\u1ee9c l\u00e0 ta \u0111em hi\u1ec7u tr\u00ean chia cho 2<\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span> <br\/> <br\/> Hi\u1ec7u c\u1ee7a 971 538 v\u00e0 223 542 l\u00e0: <br\/> 971 538 - 223 542 = 747 996 <br\/> Hi\u1ec7u c\u1ee7a 971 538 v\u00e0 223 542 r\u1ed3i gi\u1ea3m \u0111i 2 l\u1ea7n l\u00e0: <br\/> (971 538 - 223 542) : 2 = 373 998 <br\/> V\u1eady s\u1ed1 c\u1ea7n t\u00ecm l\u00e0: 373 998 <br\/>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: B <\/span>","column":2}]}],"id_ques":235},{"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 m\u1ed9t s\u1ed1 bi\u1ebft s\u1ed1 \u0111\u00f3 l\u00e0 t\u1ed5ng c\u1ee7a 3716 v\u00e0 4215 r\u1ed3i g\u1ea5p l\u00ean 3 l\u1ea7n. <br\/> S\u1ed1 c\u1ea7n t\u00ecm l\u00e0:","select":["A. 23 933","B. 23 973","C. 23 733","D. 23 793"],"hint":"g\u1ea5p l\u00ean t\u1ee9c l\u00e0 ta th\u1ef1c hi\u1ec7n ph\u00e9p t\u00ednh nh\u00e2n","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/>T\u1ed5ng c\u1ee7a 3716 v\u00e0 4215 t\u1ee9c l\u00e0: 3716 + 4215 <br\/> G\u1ea5p l\u00ean 3 l\u1ea7n t\u1ee9c l\u00e0 ta \u0111em t\u1ed5ng tr\u00ean nh\u00e2n v\u1edbi 3<\/span> <br\/><br\/>B\u00e0i gi\u1ea3i:<\/span> <br\/> <br\/> T\u1ed5ng c\u1ee7a 3716 v\u00e0 4215 l\u00e0: <br\/> 3716 + 4215 = 7931 <br\/> T\u1ed5ng c\u1ee7a 3716 v\u00e0 4215 r\u1ed3i g\u1ea5p l\u00ean 3 l\u1ea7n l\u00e0: <br\/> (3716 + 4215) . 3 = 23 793 <br\/> V\u1eady s\u1ed1 c\u1ea7n t\u00ecm l\u00e0: 23 793 <br\/>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: D <\/span>","column":2}]}],"id_ques":236},{"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":[[["20"],["12"]]],"list":[{"point":5,"width":50,"type_input":"","ques":"H\u00e3y \u0111i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o \u00f4 tr\u1ed1ng <br\/> <table><tr><th>n<\/th><th>3<\/th><th>5<\/th><\/tr><tr><td>135 : n - 75 : n <\/td><td>_input_<\/td><td>_input_<\/td><\/tr><\/table> ","hint":"Thay n = 3 v\u00e0 n = 5 v\u00e0o r\u1ed3i t\u00ednh","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/>Thay n = 3 v\u00e0o bi\u1ec3u th\u1ee9c 135 : n - 75 : n r\u1ed3i t\u00ednh v\u00e0 \u0111i\u1ec1n k\u1ebft qu\u1ea3 v\u00e0o \u00f4 th\u1ee9 nh\u1ea5t <br\/> Thay n = 5 v\u00e0o bi\u1ec3u th\u1ee9c 135 : 5 - 75 : n r\u1ed3i t\u00ednh v\u00e0 \u0111i\u1ec1n k\u1ebft qu\u1ea3 v\u00e0o \u00f4 tr\u1ed1ng th\u1ee9 2<\/span><br\/> <br\/> B\u00e0i gi\u1ea3i:<\/span><br\/> V\u1edbi n = 3 ta c\u00f3: <br\/>$\\begin{align*}& 135 : 3 - 75 : 3 \\\\ =& (135 - 75) : 3 \\\\ =& 60 : 3 \\\\ =& 20 \\end{align*}$ <br\/> V\u1edbi n = 5 ta c\u00f3: <br\/> $\\begin{align*}& 135 : 5 - 75 : 5 \\\\ =& (135 - 75) : 5 \\\\ =& 60 : 5 \\\\ =& 12 \\end{align*}$ <br\/> V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u00e0: 20; 12<\/span>"}]}],"id_ques":237},{"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":[[["130"],["52"]]],"list":[{"point":5,"width":50,"type_input":"","ques":"H\u00e3y \u0111i\u1ec1n s\u1ed1 th\u00edch h\u1ee3p v\u00e0o \u00f4 tr\u1ed1ng <br\/> <table><tr><th>n<\/th><th>2<\/th><th>5<\/th><\/tr><tr><td>350 : n - 90 : n <\/td><td>_input_<\/td><td>_input_<\/td><\/tr><\/table> ","hint":"Thay n = 2 v\u00e0 n = 5 v\u00e0o r\u1ed3i t\u00ednh","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/>Thay n = 2 v\u00e0o bi\u1ec3u th\u1ee9c 350 : n - 90 : n r\u1ed3i t\u00ednh v\u00e0 \u0111i\u1ec1n k\u1ebft qu\u1ea3 v\u00e0o \u00f4 th\u1ee9 nh\u1ea5t <br\/> Thay n = 5 v\u00e0o bi\u1ec3u th\u1ee9c 350 : n - 90 : n r\u1ed3i t\u00ednh v\u00e0 \u0111i\u1ec1n k\u1ebft qu\u1ea3 v\u00e0o \u00f4 tr\u1ed1ng th\u1ee9 2<\/span><br\/> <br\/> B\u00e0i gi\u1ea3i:<\/span><br\/> V\u1edbi n = 2 ta c\u00f3: <br\/>$\\begin{align*}& 350 : 2 - 90 : 2 \\\\ =& (350 - 90) : 2 \\\\ =& 260 : 2 \\\\ =& 130 \\end{align*}$ <br\/> V\u1edbi n = 5 ta c\u00f3: <br\/> $\\begin{align*}& 350 : 5 - 90 : 5 \\\\ =& (350 - 90) : 5 \\\\ =& 260 : 5 \\\\ =& 52 \\end{align*}$ <br\/> V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u00e0: 130; 52<\/span>"}]}],"id_ques":238},{"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":[[["2026"]]],"list":[{"point":5,"width":50,"type_input":"","ques":"T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c: <br\/> 435003 : 83 - 3215 = _input_ ","hint":"","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/>Ta th\u1ef1c hi\u1ec7n ph\u00e9p t\u00ednh chia tr\u01b0\u1edbc, ph\u00e9p t\u00ednh tr\u1eeb sau<\/span><br\/> <br\/> B\u00e0i gi\u1ea3i:<\/span><br\/> <br\/>$\\begin{align*} &435003 : 83 - 3215 \\\\ =& 5241 - 3215 \\\\ =& 2026 \\end{align*}$ <br\/> V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u00e0: 2026<\/span>"}]}],"id_ques":239},{"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":[[["977"]]],"list":[{"point":5,"width":50,"type_input":"","ques":"T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c: <br\/>25410 : 35 + 251 = _input_ ","hint":"","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/>Ta th\u1ef1c hi\u1ec7n ph\u00e9p t\u00ednh chia tr\u01b0\u1edbc, ph\u00e9p t\u00ednh c\u1ed9ng sau<\/span><br\/> <br\/> B\u00e0i gi\u1ea3i:<\/span><br\/> <br\/>$\\begin{align*} &25410 : 35 + 251 \\\\ =& 726 + 251 \\\\ =& 977 \\end{align*}$ <br\/> V\u1eady s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u00e0: 977<\/span>"}]}],"id_ques":240}],"lesson":{"save":0,"level":2}}

Điểm của bạn.

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)

Điểm của bạn.

Bấm vào đây nếu phát hiện có lỗi hoặc muốn gửi góp ý

Em chưa làm xong câu này