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同学们大家好,本节课的学习目标:
1.熟练掌握求两个数最大公因数的方法。
2.会判断两个数的关系,从而快速的求出两个数的最大公因数。
","type":1},{"source":0,"text":"下面请自学课本,思考以下问题:
1. 两个数的公因数和最大公因数有什么关系?
2. 倍数关系的两个数,最大公因数有什么特点?
","type":1},{"img_height":714,"img_url":"https://ss-mpvolc.meipian.me/users/23992709/f9a86820-5dc7-11ea-ac52-d74389b32b2a__png.heic","img_width":658,"is_origin":false,"source":0,"type":1},{"img_height":188,"img_url":"https://ss-mpvolc.meipian.me/users/23992709/71a4a780-5dc8-11ea-ac52-d74389b32b2a__png.heic","img_width":552,"is_origin":false,"source":0,"type":1},{"source":0,"text":"接下来带着你的发现和疑问,来看今天的微课视频吧!
","type":1},{"source":0,"source_platform":"local","text":" 温馨小提醒:
公因数只有1的两个数,叫做(互质数)。例如:5和7就是(互质数)
","type":3,"video_length":0,"video_thumbnail":"https://ss-mpvolc.meipian.me/users/23992709/f028c490-5d4d-11ea-8b8c-4348121f75e0__jpg.heic","video_url":"https://md-mpvolc.meipian.me/users/23992709/ef741a90-5d4d-11ea-8b8c-4348121f75e0.mp4"},{"source":0,"text":"同学们,视频中的讲解听明白了吗?尝试完成下面的练习吧。
","type":1},{"source":0,"text":"1.判断
(1)互质的两个数没有最大公因数。 ( )
(2)最小的合数与最小的质数是互质数。 ( )
(3)两个数的最大公因数一定比这两个数都小。( )
(4)两个数公因数的个数是有限的。 ( )
2.选出正确的选项
(1)9和16的最大公因数是( )
A.1 B.3 C.4 D.9
(2)36和48的最大公因数是( )
A.4 B.6 C.12 D.36
(3)甲数是乙数的倍数,甲、乙两数的最大公因数是( )
A.1 B.甲数 C.乙数 D.甲、乙两数的积
3.
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1.熟练掌握求两个数最大公因数的方法。
2.会判断两个数的关系,从而快速的求出两个数的最大公因数。
","type":1},{"source":0,"text":"下面请自学课本,思考以下问题:
1. 两个数的公因数和最大公因数有什么关系?
2. 倍数关系的两个数,最大公因数有什么特点?
","type":1},{"img_height":714,"img_url":"https://ss-mpvolc.meipian.me/users/23992709/f9a86820-5dc7-11ea-ac52-d74389b32b2a__png.heic","img_width":658,"is_origin":false,"source":0,"type":1},{"img_height":188,"img_url":"https://ss-mpvolc.meipian.me/users/23992709/71a4a780-5dc8-11ea-ac52-d74389b32b2a__png.heic","img_width":552,"is_origin":false,"source":0,"type":1},{"source":0,"text":"接下来带着你的发现和疑问,来看今天的微课视频吧!
","type":1},{"source":0,"source_platform":"local","text":" 温馨小提醒:
公因数只有1的两个数,叫做(互质数)。例如:5和7就是(互质数)
","type":3,"video_length":0,"video_thumbnail":"https://ss-mpvolc.meipian.me/users/23992709/f028c490-5d4d-11ea-8b8c-4348121f75e0__jpg.heic","video_url":"https://md-mpvolc.meipian.me/users/23992709/ef741a90-5d4d-11ea-8b8c-4348121f75e0.mp4"},{"source":0,"text":"同学们,视频中的讲解听明白了吗?尝试完成下面的练习吧。
","type":1},{"source":0,"text":"1.判断
(1)互质的两个数没有最大公因数。 ( )
(2)最小的合数与最小的质数是互质数。 ( )
(3)两个数的最大公因数一定比这两个数都小。( )
(4)两个数公因数的个数是有限的。 ( )
2.选出正确的选项
(1)9和16的最大公因数是( )
A.1 B.3 C.4 D.9
(2)36和48的最大公因数是( )
A.4 B.6 C.12 D.36
(3)甲数是乙数的倍数,甲、乙两数的最大公因数是( )
A.1 B.甲数 C.乙数 D.甲、乙两数的积
3.
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