Dấu hiệu chia hết cho 3, cho 9

Home Lớp 6 Toán lớp 6 - Sách kết nối tri thức Dấu hiệu chia hết cho 3, cho 9Bài tập trung bình

{"common":{"save":0,"post_id":"735","level":2,"total":20,"point":5,"point_extra":0},"segment":[{"id":"531","post_id":"735","mon_id":"0","chapter_id":"0","question":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","options":{"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='img\/2.jpg' \/><\/center> <br\/> Cho c\u00e1c s\u1ed1: 914208; 374192; 35496; 31205. <br\/>T\u1eadp h\u1ee3p A g\u1ed3m c\u00e1c s\u1ed1 chia h\u1ebft cho 3 l\u00e0:","select":["A. A = {914208; 31205}","B. A = {374192; 35496} ","C. A = {914208; 35496}"],"hint":"T\u00ednh t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 c\u1ee7a t\u1eebng s\u1ed1 \u0111\u1ec3 t\u00ecm c\u00e1c s\u1ed1 chia h\u1ebft cho 3","explain":"H\u01b0\u1edbng d\u1eabn:<\/span> <br\/> D\u1ef1a v\u00e0o d\u1ea5u hi\u1ec7u chia h\u1ebft cho 3 <br\/> B\u01b0\u1edbc 1: <\/b> T\u00ednh t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 c\u1ee7a t\u1eebng s\u1ed1 <br\/> S\u1ed1 n\u00e0o c\u00f3 t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 chia h\u1ebft cho 3 th\u00ec chia h\u1ebft cho 3 <br\/> B\u01b0\u1edbc 2: <\/b> T\u00ecm t\u1eadp h\u1ee3p A g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c s\u1ed1 chia h\u1ebft cho 3 <\/span> <br\/><br\/> B\u00e0i gi\u1ea3i:<\/span> <br\/> +) S\u1ed1 914208 c\u00f3 t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 l\u00e0: 9 + 1 + 4 + 2 + 0 + 8 = 24 <br\/> V\u00ec 24 $\\vdots$ 3 $\\Rightarrow$ 914208 $\\vdots$ 3 <br\/> +) S\u1ed1 374192 c\u00f3 t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 l\u00e0: 3 + 7 + 4 + 1 + 9 + 2 = 26 <br\/> V\u00ec 26 $\\not \\vdots$ 3 $\\Rightarrow$ 374192 $\\not \\vdots$ 3 <br\/> +) S\u1ed1 35496 c\u00f3 t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 l\u00e0: 3 + 5 + 4 + 9 + 6 = 27 <br\/> V\u00ec 27 $\\vdots$ 3 $\\Rightarrow$ 35496 $\\vdots$ 3 <br\/> +) S\u1ed1 31205 c\u00f3 t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 l\u00e0: 3 + 1 + 2 + 0 + 5 = 11 <br\/> V\u00ec 11 $\\not \\vdots$ 3 $\\Rightarrow$ 31205 $\\not \\vdots$ 3 <br\/> V\u1eady t\u1eadp h\u1ee3p A g\u1ed3m c\u00e1c s\u1ed1 chia h\u1ebft cho 3 l\u00e0: A = {914208; 35496} <br\/> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: C <\/span> ","column":3}]}]},"correct":"","level":"2","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:14:42"},{"id":"532","post_id":"735","mon_id":"0","chapter_id":"0","question":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","options":{"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='img\/2.jpg' \/><\/center> <br\/> Cho c\u00e1c s\u1ed1: 914208; 374192; 35496; 31205. <br\/> T\u1eadp h\u1ee3p B g\u1ed3m c\u00e1c s\u1ed1 chia h\u1ebft cho 9 l\u00e0:","select":["A. B = {914208}","B. B = {379142} ","C. B = {35496}"],"hint":"T\u00ednh t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 c\u1ee7a t\u1eebng s\u1ed1 \u0111\u1ec3 t\u00ecm c\u00e1c s\u1ed1 chia h\u1ebft cho 9","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/> D\u1ef1a v\u00e0o d\u1ea5u hi\u1ec7u chia h\u1ebft cho 9 <br\/> B\u01b0\u1edbc 1: <\/b> T\u00ednh t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 c\u1ee7a t\u1eebng s\u1ed1 <br\/> S\u1ed1 n\u00e0o c\u00f3 t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 chia h\u1ebft cho 9 th\u00ec chia h\u1ebft cho 9 <br\/> B\u01b0\u1edbc 2: <\/b> T\u00ecm t\u1eadp h\u1ee3p B g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c s\u1ed1 chia h\u1ebft cho 9 <\/span> <br\/><br\/> B\u00e0i gi\u1ea3i:<\/span> <br\/> +) S\u1ed1 914208 c\u00f3 t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 l\u00e0: 9 + 1 + 4 + 2 + 0 + 8 = 24 <br\/> V\u00ec 24 $\\not \\vdots$ 9 $\\Rightarrow$ 914208 $\\not \\vdots$ 9 <br\/> +) S\u1ed1 374192 c\u00f3 t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 l\u00e0: 3 + 7 + 4 + 1 + 9 + 2 = 26 <br\/> V\u00ec 26 $\\not \\vdots$ 9 $\\Rightarrow$ 374192 $\\not \\vdots$ 9<br\/> +) S\u1ed1 35496 c\u00f3 t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 l\u00e0: 3 + 5 + 4 + 9 + 6 = 27 <br\/> V\u00ec 27 $\\vdots$ 9 $\\Rightarrow$ 35496 $\\vdots$ 9 <br\/> +) S\u1ed1 31205 c\u00f3 t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 l\u00e0: 3 + 1 + 2 + 0 + 5 = 11 <br\/> V\u00ec 11 $\\not \\vdots$ 9 $\\Rightarrow$ 31205 $\\not \\vdots$ 9 <br\/> V\u1eady t\u1eadp h\u1ee3p B g\u1ed3m c\u00e1c s\u1ed1 chia h\u1ebft cho 9 l\u00e0: B = {35496} <br\/> V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0: C <\/span> ","column":3}]}]},"correct":"","level":"2","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:14:42"},{"id":"533","post_id":"735","mon_id":"0","chapter_id":"0","question":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","options":{"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='img\/3.jpg' \/><\/center> <br\/> H\u00e3y ch\u1ecdn s\u1ed1 khi chia cho 3 \u0111\u01b0\u1ee3c d\u01b0 l\u00e0 1","select":["A. 4715","B. 8324 ","C. 7421","D. 9142"],"hint":"S\u1ed1 A c\u00f3 t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 chia 3 d\u01b0 m th\u00ec A chia 3 d\u01b0 m","explain":"H\u01b0\u1edbng d\u1eabn:<\/span><br\/> D\u1ef1a v\u00e0o d\u1ea5u hi\u1ec7u chia h\u1ebft cho 3 <br\/> B\u01b0\u1edbc 1: <\/b> T\u00ednh t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 c\u1ee7a t\u1eebng s\u1ed1 <br\/> B\u01b0\u1edbc 2: <\/b> N\u1ebfu t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 c\u1ee7a s\u1ed1 A chia cho 3 d\u01b0 m th\u00ec s\u1ed1 A chia 3 d\u01b0 m <\/span> <br\/><br\/> B\u00e0i gi\u1ea3i:<\/span> <br\/> +) S\u1ed1 4715 c\u00f3 t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 l\u00e0: 4 + 7 + 1 + 5 = 17 <br\/> V\u00ec 17 = 3 . 5 + 2 n\u00ean 17 chia 3 d\u01b0 2 hay 47515 chia 3 d\u01b0 2 <br\/> +) S\u1ed1 8324 c\u00f3 t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 l\u00e0: 8 + 3 + 2 + 4 = 17 <br\/> V\u00ec 17 chia 3 d\u01b0 2 n\u00ean 8324 chia 3 d\u01b0 2 <br\/> +) S\u1ed1 7421 c\u00f3 t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 l\u00e0: 7 + 4 + 2 + 1 = 14 <br\/> V\u00ec 14 = 3 . 4 + 2 n\u00ean 14 chia 3 d\u01b0 2 hay 7421 chia 3 d\u01b0 2 <br\/> +) S\u1ed1 9142 c\u00f3 t\u1ed5ng c\u00e1c ch\u1eef s\u1ed1 l\u00e0: 9 + 1 + 4 + 2 = 16 <br\/> V\u00ec 16 = 3 . 5 + 1 n\u00ean 16 chia 3 d\u01b0 1 hay 9142 chia 3 d\u01b0 1 <br\/> V\u1eady s\u1ed1 chia 3 d\u01b0 1 l\u00e0: 9142 <\/span> ","column":4}]}]},"correct":"","level":"2","hint":"","answer":"","type":"json","extra_type":"","time":"0","user_id":"0","test":"0","date":"2019-09-30 09:14:42"}]}