{"segment":[{"time":24,"part":[{"title":"\u0110i\u1ec1n \u0111\u00e1p \u00e1n \u0111\u00fang v\u00e0o \u00f4 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["-14"],["25"]]],"list":[{"point":5,"width":50,"type_input":"","ques":"Vi\u1ebft s\u1ed1 th\u1eadp ph\u00e2n $-0,56$ d\u01b0\u1edbi d\u1ea1ng ph\u00e2n s\u1ed1 t\u1ed1i gi\u1ea3n <br\/> <br\/> <u> K\u1ebft qu\u1ea3 <\/u>:<div class=\"frac123\"><div class=\"ts\">_input_<\/div><div class=\"ms\">_input_<\/div><\/div>","hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> <b> Vi\u1ebft s\u1ed1 th\u1eadp ph\u00e2n h\u1eefu h\u1ea1n d\u01b0\u1edbi d\u1ea1ng ph\u00e2n s\u1ed1 t\u1ed1i gi\u1ea3n<\/b> <br\/> <i> <u> Ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3i <\/i> <\/u> <br\/> D\u1ef1a v\u00e0o nh\u1eadn x\u00e9t: <br\/> * Ph\u1ea7n th\u1eadp ph\u00e2n c\u00f3 n ch\u1eef s\u1ed1 th\u00ec \u1edf m\u1eabu s\u1ed1 c\u1ee7a ph\u00e2n s\u1ed1 l\u00e0 $10^{n}.$ <br\/> * Cu\u1ed1i c\u00f9ng r\u00fat g\u1ecdn ph\u00e2n s\u1ed1 v\u1eeba l\u1eadp \u0111\u01b0\u1ee3c. <\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3: $-0,56 = \\dfrac{-56}{100} = \\dfrac{-14}{25}$ <br\/> <br\/> <span class='basic_pink'> K\u1ebft qu\u1ea3 l\u00e0 $\\dfrac{-14}{25}$ <\/span><\/span>"}]}],"id_ques":351},{"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: <br\/> $x + 2,9 = 0,3$ ","select":["A. $x = -2,6$ ","B. $x = 2,6$","C. $x = 3,2$ ","D. $x = -3,2$ "],"hint":"","explain":" Ta c\u00f3: $ x + 2,9 = 0,3 \\\\ \\Rightarrow x = 0,3 - 2,9 \\\\ \\Rightarrow x = -2,6 $ <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 A. <\/span><\/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":[[3]],"list":[{"point":5,"ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/toan/daiso/bai8/lv1/img\/7.jpg' \/><\/center> Ph\u00e2n s\u1ed1 n\u00e0o d\u01b0\u1edbi \u0111\u00e2y vi\u1ebft \u0111\u01b0\u1ee3c d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp ph\u00e2n v\u00f4 h\u1ea1n tu\u1ea7n ho\u00e0n ","select":["A. $\\dfrac{3}{2}$ ","B. $\\dfrac{1}{4}$","C. $\\dfrac{1}{7}$"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span> <br\/> <b> Nh\u1eadn bi\u1ebft m\u1ed9t ph\u00e2n s\u1ed1 vi\u1ebft \u0111\u01b0\u1ee3c d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp ph\u00e2n h\u1eefu h\u1ea1n ho\u1eb7c v\u00f4 h\u1ea1n tu\u1ea7n ho\u00e0n <\/b> <br\/> <i> <u> Ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3i <\/i> <\/u> <br\/> $\\bullet$ Vi\u1ebft ph\u00e2n s\u1ed1 d\u01b0\u1edbi d\u1ea1ng ph\u00e2n s\u1ed1 t\u1ed1i gi\u1ea3n v\u1edbi m\u1eabu s\u1ed1 d\u01b0\u01a1ng. <br\/> $\\bullet$ Ph\u00e2n t\u00edch m\u1eabu \u0111\u00f3 ra th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1. <br\/> $\\bullet$ N\u1ebfu m\u1eabu n\u00e0y kh\u00f4ng c\u00f3 \u01b0\u1edbc nguy\u00ean t\u1ed1 kh\u00e1c $2$ v\u00e0 $5$ th\u00ec ph\u00e2n s\u1ed1 vi\u1ebft \u0111\u01b0\u1ee3c d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp ph\u00e2n h\u1eefu h\u1ea1n. <br\/> N\u1ebfu m\u1eabu n\u00e0y c\u00f3 \u01b0\u1edbc nguy\u00ean t\u1ed1 kh\u00e1c $2$ v\u00e0 $5$ th\u00ec ph\u00e2n s\u1ed1 vi\u1ebft \u0111\u01b0\u1ee3c d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp ph\u00e2n v\u00f4 h\u1ea1n tu\u1ea7n ho\u00e0n. <\/span> <br\/> <br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3: $\\dfrac{3}{2}$ l\u00e0 ph\u00e2n s\u1ed1 t\u1ed1i gi\u1ea3n; m\u1eabu s\u1ed1 l\u00e0 $2$ (kh\u00f4ng ch\u1ee9a th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1 kh\u00e1c 2 v\u00e0 5) <br\/> $\\dfrac{1}{4}$ l\u00e0 ph\u00e2n s\u1ed1 t\u1ed1i gi\u1ea3n; m\u1eabu s\u1ed1 l\u00e0 $4 = 2^{2}$ (kh\u00f4ng ch\u1ee9a th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1 kh\u00e1c 2 v\u00e0 5) <br\/> $\\dfrac{1}{7}$ l\u00e0 ph\u00e2n s\u1ed1 t\u1ed1i gi\u1ea3n; m\u1eabu s\u1ed1 l\u00e0 7 (c\u00f3 ch\u1ee9a th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1 kh\u00e1c 2 v\u00e0 5) <br\/> V\u1eady ph\u00e2n s\u1ed1 vi\u1ebft \u0111\u01b0\u1ee3c d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp ph\u00e2n v\u00f4 h\u1ea1n tu\u1ea7n ho\u00e0n l\u00e0 $\\dfrac{1}{7}$ <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 C. <\/span><\/span> ","column":3}]}],"id_ques":353},{"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":" Ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang. ","select":["A. 0,4(16) = 0,416 ","B. 0,4(16) = 0, 41666...","C. 0,4(16) = 0,416416...","D. 0,4(16) = 0,4161616..."],"hint":" Nh\u1eadn th\u1ea5y s\u1ed1 16 \u0111\u01b0\u1ee3c l\u1eb7p l\u1ea1i v\u00f4 h\u1ea1n l\u1ea7n.","explain":" X\u00e9t 0,4(16) <br\/> Ta th\u1ea5y s\u1ed1 16 \u0111\u01b0\u1ee3c l\u1eb7p l\u1ea1i v\u00f4 h\u1ea1n l\u1ea7n n\u00ean 0,4(16) = 0,4161616... <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 D. <\/span><\/span> ","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":[[3]],"list":[{"point":5,"ques":" Ph\u00e2n s\u1ed1 $\\dfrac{5}{11}$ vi\u1ebft \u0111\u01b0\u1ee3c d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp ph\u00e2n v\u00f4 h\u1ea1n tu\u1ea7n ho\u00e0n l\u00e0: ","select":["A. 0,45 ","B. 0,4(5)","C. 0,(45)","D. 0,(045)"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span> <br\/> <b> Vi\u1ebft m\u1ed9t ph\u00e2n s\u1ed1 ho\u1eb7c m\u1ed9t t\u1ec9 s\u1ed1 d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp ph\u00e2n <\/b> <br\/> <i> <u> Ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3i: <\/i> <\/u> <br\/> Ta chia t\u1eed s\u1ed1 cho m\u1eabu s\u1ed1. <\/span> <br\/> <br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3: $\\dfrac{5}{11} = 0,454545... = 0,(45)$ (ta chia 5 cho 11) <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 C. <\/span><\/span> ","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":" Ph\u00e2n s\u1ed1 n\u00e0o d\u01b0\u1edbi \u0111\u00e2y vi\u1ebft \u0111\u01b0\u1ee3c d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp ph\u00e2n h\u1eefu h\u1ea1n? ","select":["A. $\\dfrac{9}{24}$ ","B. $\\dfrac{3}{14}$","C. $\\dfrac{-4}{15}$"],"hint":"","explain":" Ta c\u00f3: $\\dfrac{9}{24} = \\dfrac{3}{8}$; m\u1eabu s\u1ed1 l\u00e0 $8 = 2^{3}$ (kh\u00f4ng ch\u1ee9a th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1 kh\u00e1c 2 v\u00e0 5) <br\/> $\\dfrac{3}{14}$ l\u00e0 ph\u00e2n s\u1ed1 t\u1ed1i gi\u1ea3n; m\u1eabu s\u1ed1 14 = 2.7 (c\u00f3 ch\u1ee9a th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1 kh\u00e1c 2 v\u00e0 5) <br\/> $\\dfrac{-4}{15}$ l\u00e0 ph\u00e2n s\u1ed1 t\u1ed1i gi\u1ea3n; m\u1eabu s\u1ed1 15 = 5.3 (c\u00f3 ch\u1ee9a th\u1eeba s\u1ed1 nguy\u00ean t\u1ed1 kh\u00e1c 2 v\u00e0 5) <br\/> V\u1eady ph\u00e2n s\u1ed1 vi\u1ebft \u0111\u01b0\u1ee3c d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp ph\u00e2n h\u1eefu h\u1ea1n l\u00e0 $\\dfrac{9}{24}$ <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 A. <\/span><\/span> ","column":3}]}],"id_ques":356},{"time":24,"part":[{"title":"\u0110i\u1ec1n \u0111\u00e1p \u00e1n \u0111\u00fang v\u00e0o \u00f4 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["8"],["25"]]],"list":[{"point":5,"width":50,"type_input":"","ques":" Vi\u1ebft s\u1ed1 th\u1eadp ph\u00e2n 0,32 d\u01b0\u1edbi d\u1ea1ng ph\u00e2n s\u1ed1 t\u1ed1i gi\u1ea3n <br\/> <br\/> <u> \u0110\u00e1p s\u1ed1: <\/u>: <div class=\"frac123\"><div class=\"ts\">_input_<\/div><div class=\"ms\">_input_<\/div><\/div>","hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span><br\/> <b> Vi\u1ebft s\u1ed1 th\u1eadp ph\u00e2n h\u1eefu h\u1ea1n d\u01b0\u1edbi d\u1ea1ng ph\u00e2n s\u1ed1 t\u1ed1i gi\u1ea3n<\/b> <br\/> <i> <u> Ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3i <\/i> <\/u> <br\/> D\u1ef1a v\u00e0o nh\u1eadn x\u00e9t: <br\/> * Ph\u1ea7n th\u1eadp ph\u00e2n c\u00f3 n ch\u1eef s\u1ed1 th\u00ec \u1edf m\u1eabu s\u1ed1 c\u1ee7a ph\u00e2n s\u1ed1 l\u00e0 $10^{n}.$ <br\/> * Cu\u1ed1i c\u00f9ng r\u00fat g\u1ecdn ph\u00e2n s\u1ed1 v\u1eeba l\u1eadp \u0111\u01b0\u1ee3c. <\/span> <br\/><br\/><span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3: $0,32 = \\dfrac{32}{100} = \\dfrac{8}{25}$ <br\/> <br\/> <span class='basic_pink'> K\u1ebft qu\u1ea3 l\u00e0 $\\dfrac{8}{25}$ <\/span><\/span>"}]}],"id_ques":357},{"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":" Vi\u1ebft s\u1ed1 th\u1eadp ph\u00e2n 0,16 d\u01b0\u1edbi d\u1ea1ng ph\u00e2n s\u1ed1 t\u1ed1i gi\u1ea3n ta \u0111\u01b0\u1ee3c ph\u00e2n s\u1ed1: ","select":["A. $\\dfrac{4}{25}$ ","B. $\\dfrac{16}{100}$","C. $\\dfrac{8}{5}$","D. $\\dfrac{4}{212}$"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span> <br\/> <b> Vi\u1ebft s\u1ed1 th\u1eadp ph\u00e2n h\u1eefu h\u1ea1n d\u01b0\u1edbi d\u1ea1ng ph\u00e2n s\u1ed1 t\u1ed1i gi\u1ea3n<\/b> <br\/> <i> <u> Ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3i <\/i> <\/u> <br\/> D\u1ef1a v\u00e0o nh\u1eadn x\u00e9t: <br\/> * Ph\u1ea7n th\u1eadp ph\u00e2n c\u00f3 n ch\u1eef s\u1ed1 th\u00ec \u1edf m\u1eabu s\u1ed1 c\u1ee7a ph\u00e2n s\u1ed1 l\u00e0 $10^{n}.$ <br\/> * Cu\u1ed1i c\u00f9ng r\u00fat g\u1ecdn ph\u00e2n s\u1ed1 v\u1eeba l\u1eadp \u0111\u01b0\u1ee3c. <\/span> <br\/> <br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Ta c\u00f3: $0,16 = \\dfrac{16}{100} = \\dfrac{4}{25}$ <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 A. <\/span><\/span> ","column":2}]}],"id_ques":358},{"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":" Vi\u1ebft s\u1ed1 th\u1eadp ph\u00e2n 5,4 d\u01b0\u1edbi d\u1ea1ng ph\u00e2n s\u1ed1 t\u1ed1i gi\u1ea3n ta \u0111\u01b0\u1ee3c ph\u00e2n s\u1ed1: ","select":["A. $\\dfrac{27}{5}$ ","B. $\\dfrac{54}{10}$","C. $\\dfrac{9}{5}$","D. $\\dfrac{9}{25}$"],"hint":"","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span> <br\/> <b> Vi\u1ebft s\u1ed1 th\u1eadp ph\u00e2n h\u1eefu h\u1ea1n d\u01b0\u1edbi d\u1ea1ng ph\u00e2n s\u1ed1 t\u1ed1i gi\u1ea3n<\/b> <br\/> <i> <u> Ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3i <\/i> <\/u> <br\/> D\u1ef1a v\u00e0o nh\u1eadn x\u00e9t: <br\/> * Ph\u1ea7n th\u1eadp ph\u00e2n c\u00f3 n ch\u1eef s\u1ed1 th\u00ec \u1edf m\u1eabu s\u1ed1 c\u1ee7a ph\u00e2n s\u1ed1 l\u00e0 $10^{n}.$ <br\/> * Cu\u1ed1i c\u00f9ng r\u00fat g\u1ecdn ph\u00e2n s\u1ed1 v\u1eeba l\u1eadp \u0111\u01b0\u1ee3c. <\/span> <br\/> <br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/>Ta c\u00f3: $5,4 = \\dfrac{54}{10} = \\dfrac{27}{5}$ <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 A. <\/span><\/span> ","column":2}]}],"id_ques":359},{"time":24,"part":[{"title":"\u0110i\u1ec1n \u0111\u00e1p \u00e1n \u0111\u00fang v\u00e0o \u00f4 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["53"]]],"list":[{"point":5,"width":50,"type_input":"","ques":" Chu k\u00ec c\u1ee7a s\u1ed1 th\u1eadp ph\u00e2n v\u00f4 h\u1ea1n tu\u1ea7n ho\u00e0n 13,26(53) l\u00e0 : _input_","hint":"","explain":" Chu k\u00ec c\u1ee7a s\u1ed1 th\u1eadp ph\u00e2n v\u00f4 h\u1ea1n tu\u1ea7n ho\u00e0n 13,26(53) l\u00e0 53. <br\/> <br\/> <span class='basic_pink'> K\u1ebft qu\u1ea3 l\u00e0 53 <\/span><\/span> <br\/> <b>L\u01b0u \u00fd: nh\u1eefng s\u1ed1 th\u1eadp ph\u00e2n v\u00f4 h\u1ea1n tu\u1ea7n ho\u00e0n th\u00ec chu k\u00ec c\u1ee7a n\u00f3 l\u00e0 s\u1ed1 n\u1eb1m trong d\u1ea5u ( ) V\u00ed d\u1ee5: s\u1ed1 a,(bc) th\u00ec chu k\u00ec l\u00e0 bc <\/b>"}]}],"id_ques":360},{"time":24,"part":[{"title":"\u0110i\u1ec1n \u0111\u00e1p \u00e1n \u0111\u00fang v\u00e0o \u00f4 tr\u1ed1ng","title_trans":"","temp":"fill_the_blank","correct":[[["513"]]],"list":[{"point":5,"width":50,"type_input":"","ques":" Chu k\u00ec c\u1ee7a s\u1ed1 th\u1eadp ph\u00e2n v\u00f4 h\u1ea1n tu\u1ea7n ho\u00e0n 2,(513) l\u00e0 :_input_","hint":"","explain":" Chu k\u00ec c\u1ee7a s\u1ed1 th\u1eadp ph\u00e2n v\u00f4 h\u1ea1n tu\u1ea7n ho\u00e0n 2,(513) l\u00e0 513. <br\/> <br\/> <span class='basic_pink'> K\u1ebft qu\u1ea3 l\u00e0 513 <\/span><\/span>"}]}],"id_ques":361},{"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/lop7/toan/daiso/bai8/lv1/img\/4.jpg' \/><\/center> D\u1ea1ng r\u00fat g\u1ecdn c\u1ee7a s\u1ed1 th\u1eadp ph\u00e2n v\u00f4 h\u1ea1n tu\u1ea7n ho\u00e0n 0,3333... l\u00e0 0,(3) \u0111\u00fang hay sai? ","select":[" \u0110\u00fang "," Sai"],"hint":"","explain":" D\u1ea1ng r\u00fat g\u1ecdn c\u1ee7a s\u1ed1 th\u1eadp ph\u00e2n v\u00f4 h\u1ea1n tu\u1ea7n ho\u00e0n 0,3333... l\u00e0 0,(3) <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n l\u00e0 \u0110\u00fang. <\/span><\/span> ","column":2}]}],"id_ques":362},{"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/lop7/toan/daiso/bai8/lv1/img\/4.jpg' \/><\/center> D\u1ea1ng r\u00fat g\u1ecdn c\u1ee7a s\u1ed1 th\u1eadp ph\u00e2n v\u00f4 h\u1ea1n tu\u1ea7n ho\u00e0n -1,32121... l\u00e0 -1,(321) \u0111\u00fang hay sai? ","select":[" \u0110\u00fang "," Sai"],"hint":"","explain":" D\u1ea1ng r\u00fat g\u1ecdn c\u1ee7a s\u1ed1 th\u1eadp ph\u00e2n v\u00f4 h\u1ea1n tu\u1ea7n ho\u00e0n -1,32121... l\u00e0 -1,3(21) <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n l\u00e0 Sai. <\/span><\/span> ","column":2}]}],"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":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/toan/daiso/bai8/lv1/img\/2.jpg' \/><\/center> Ph\u00e2n s\u1ed1 $\\dfrac{1}{6}$ vi\u1ebft \u0111\u01b0\u1ee3c d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp ph\u00e2n v\u00f4 h\u1ea1n tu\u1ea7n ho\u00e0n l\u00e0: ","select":["A. 0,1(6) ","B. 0,16","C. 0,(16)","D. 0,(016)"],"hint":" Chia t\u1eed s\u1ed1 cho m\u1eabu s\u1ed1","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span> <br\/> <b> Vi\u1ebft m\u1ed9t ph\u00e2n s\u1ed1 ho\u1eb7c m\u1ed9t t\u1ec9 s\u1ed1 d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp ph\u00e2n <\/b> <br\/> <i> <u> Ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3i: <\/i> <\/u> <br\/> Ta chia t\u1eed s\u1ed1 cho m\u1eabu s\u1ed1. <\/span> <br\/> <br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3: $\\dfrac{1}{6} = 0,16666... = 0,1(6)$ (ta chia 1 cho 6) <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 A. <\/span><\/span> ","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":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/toan/daiso/bai8/lv1/img\/2.jpg' \/><\/center> Ph\u00e2n s\u1ed1 $\\dfrac{-17}{11}$ vi\u1ebft \u0111\u01b0\u1ee3c d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp ph\u00e2n v\u00f4 h\u1ea1n tu\u1ea7n ho\u00e0n l\u00e0: ","select":["A. $-1,54$ ","B. $-1,(54)$ ","C. $-1,5(4)$","D. $-1,(054)$"],"hint":" Chia t\u1eed s\u1ed1 cho m\u1eabu s\u1ed1","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span> <br\/> <b> Vi\u1ebft m\u1ed9t ph\u00e2n s\u1ed1 ho\u1eb7c m\u1ed9t t\u1ec9 s\u1ed1 d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp ph\u00e2n <\/b> <br\/> <i> <u> Ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3i: <\/i> <\/u> <br\/> Ta chia t\u1eed s\u1ed1 cho m\u1eabu s\u1ed1. <\/span> <br\/> <br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> Ta c\u00f3: $\\dfrac{-17}{11} = -1,545454... = -1,(54)$ (ta chia $-17$ cho 11) <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 B. <\/span><\/span> ","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":[[3]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/toan/daiso/bai8/lv1/img\/2.jpg' \/><\/center> Ph\u00e2n s\u1ed1 $\\dfrac{11}{6}$ l\u00e0: ","select":["A. S\u1ed1 th\u1eadp ph\u00e2n h\u1eefu h\u1ea1n ","B. S\u1ed1 th\u1eadp ph\u00e2n v\u00f4 h\u1ea1n","C. S\u1ed1 th\u1eadp ph\u00e2n v\u00f4 h\u1ea1n tu\u1ea7n ho\u00e0n"],"hint":"","explain":" X\u00e9t ph\u00e2n s\u1ed1 $\\dfrac{11}{6} $ <br\/> L\u00e0 ph\u00e2n s\u1ed1 t\u1ed1i gi\u1ea3n <br\/> Ta th\u1ea5y m\u1eabu s\u1ed1 $ 6 = 2.3 $ c\u00f3 \u01b0\u1edbc nguy\u00ean t\u1ed1 kh\u00e1c 2 v\u00e0 5 <br\/> V\u1eady ph\u00e2n s\u1ed1 $\\dfrac{11}{6}$ vi\u1ebft \u0111\u01b0\u1ee3c d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp ph\u00e2n v\u00f4 h\u1ea1n tu\u1ea7n ho\u00e0n. <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 C. <\/span><\/span> ","column":1}]}],"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":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/toan/daiso/bai8/lv1/img\/2.jpg' \/><\/center> Ph\u00e2n s\u1ed1 $\\dfrac{3}{8}$ l\u00e0: ","select":["A. S\u1ed1 th\u1eadp ph\u00e2n h\u1eefu h\u1ea1n ","B. S\u1ed1 th\u1eadp ph\u00e2n v\u00f4 h\u1ea1n","C. S\u1ed1 th\u1eadp ph\u00e2n v\u00f4 h\u1ea1n tu\u1ea7n ho\u00e0n"],"hint":"M\u1eabu s\u1ed1 $8 = 2^{3}$ (kh\u00f4ng c\u00f3 \u01b0\u1edbc nguy\u00ean t\u1ed1 kh\u00e1c 2 v\u00e0 5) ","explain":" X\u00e9t ph\u00e2n s\u1ed1 $\\dfrac{3}{8}$ <br\/> L\u00e0 ph\u00e2n s\u1ed1 t\u1ed1i gi\u1ea3n <br\/> Ta th\u1ea5y m\u1eabu s\u1ed1 $8 = 2^{3}$ (kh\u00f4ng c\u00f3 \u01b0\u1edbc nguy\u00ean t\u1ed1 kh\u00e1c 2 v\u00e0 5) <br\/> V\u1eady ph\u00e2n s\u1ed1 $\\dfrac{3}{8}$ vi\u1ebft \u0111\u01b0\u1ee3c d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp ph\u00e2n h\u1eefu h\u1ea1n. <br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 A. <\/span><\/span> ","column":1}]}],"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":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/toan/daiso/bai8/lv1/img\/2.jpg' \/><\/center> Ph\u00e2n s\u1ed1 $ \\dfrac{37}{25} $ vi\u1ebft d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp ph\u00e2n l\u00e0: ","select":["A. 0,148","B. 1,48","C. 14,8","D. 1,4 "],"hint":" Chia t\u1eed s\u1ed1 cho m\u1eabu s\u1ed1","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span> <br\/> <b> Vi\u1ebft m\u1ed9t ph\u00e2n s\u1ed1 ho\u1eb7c m\u1ed9t t\u1ec9 s\u1ed1 d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp ph\u00e2n <\/b> <br\/> <i> <u> Ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3i: <\/i> <\/u> <br\/> Ta chia t\u1eed s\u1ed1 cho m\u1eabu s\u1ed1.<\/span> <br\/> <br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> $\\dfrac{37}{25} = 1,48 $ (chia 37 cho 25)<br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 B. <\/span><\/span> ","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":[[4]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/toan/daiso/bai8/lv1/img\/2.jpg' \/><\/center> Ph\u00e2n s\u1ed1 $ \\dfrac{-26}{125} $ vi\u1ebft d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp ph\u00e2n l\u00e0: ","select":["A. $ -2,088$","B. $ -2,88$","C. $-0,28$","D. $-0,208$"],"hint":" Chia t\u1eed s\u1ed1 cho m\u1eabu s\u1ed1","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span> <br\/> <b> Vi\u1ebft m\u1ed9t ph\u00e2n s\u1ed1 ho\u1eb7c m\u1ed9t t\u1ec9 s\u1ed1 d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp ph\u00e2n <\/b> <br\/> <i> <u> Ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3i: <\/i> <\/u> <br\/> Ta chia t\u1eed s\u1ed1 cho m\u1eabu s\u1ed1.<\/span> <br\/> <br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> $\\dfrac{-26}{125} = -0,208 $ (chia -26 cho 125)<br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 D. <\/span><\/span> ","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":[[4]],"list":[{"point":5,"ques":" <center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/toan/daiso/bai8/lv1/img\/2.jpg' \/><\/center> Ph\u00e2n s\u1ed1 $ \\dfrac{3}{20} $ vi\u1ebft d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp ph\u00e2n l\u00e0: ","select":["A. 0,015","B. 1,5","C. 15","D. 0,15 "],"hint":" Chia t\u1eed s\u1ed1 cho m\u1eabu s\u1ed1","explain":" <span class='basic_left'><span class='basic_green'>H\u01b0\u1edbng d\u1eabn:<\/span> <br\/> <b> Vi\u1ebft m\u1ed9t ph\u00e2n s\u1ed1 ho\u1eb7c m\u1ed9t t\u1ec9 s\u1ed1 d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp ph\u00e2n <\/b> <br\/> <i> <u> Ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3i: <\/i> <\/u> <br\/> Ta chia t\u1eed s\u1ed1 cho m\u1eabu s\u1ed1.<\/span> <br\/> <br\/> <span class='basic_green'>B\u00e0i gi\u1ea3i:<\/span><br\/> $\\dfrac{3}{20} = 0,15 $ (chia 3 cho 20)<br\/> <br\/> <span class='basic_pink'> \u0110\u00e1p \u00e1n \u0111\u00fang l\u00e0 D. <\/span><\/span> ","column":2}]}],"id_ques":370}],"lesson":{"save":0,"level":1}}