工作就用美篇工作版","guide_search_desc":"海量模板范文,一键做同款 工作就用美篇工作版","img_beautify_switch":0,"ad_free":0,"text_direction":2,"template":{"id":9900,"series_id":18,"theme_id":18},"container":{"id":4150726,"user_id":81154186,"container_id":2,"stick_article_id":"","cover_img_url":"","display_name":"少年数学家","description":"","sort":1,"review_state":0,"ip":"1.80.3.184","state":0,"create_time":1642949702},"redirect":{"redirect_type":1,"img_url":false,"link_url":"/wap/downloadpage/backpage","button_bg_color":false,"button_desc":false,"redirect_desc":false},"edit_date_str":"更新于 2022-01-21","current_time":1744004532,"font_name":"","rcmd_meipian":0,"hide_article_link":0,"from_wechat":false,"topk_keywords":[{"name":"倍数","score":0.56011},{"name":"这道题","score":0.14759},{"name":"整除","score":0.130475},{"name":"竖行","score":0.102968},{"name":"我们","score":0.100483},{"name":"题意","score":0.09483},{"name":"个数","score":0.086224},{"name":"关系","score":0.081849},{"name":"两桶","score":0.078554},{"name":"可以","score":0.077892}],"music_name":"","origin_status":0,"password_v2":"","font_id":0,"title_style":"","rich_text_title":"","enable_download":1,"cover_thumb":"https://ss-mpvolc.meipian.me/users/81154186/15a8c944e97c5bd40f9b45e118f94570__jpg.heic","has_video":true,"gift_switch":1,"enable_watermark":1,"content":{"article_id":314014710,"content":[{"img_height":928,"img_url":"https://ss-mpvolc.meipian.me/users/81154186/15a8c944e97c5bd40f9b45e118f94570__jpg.heic","img_width":1024,"sale_price":"0.00","sell_key":"adfa18399c586ff0250d6c01f7719fd8","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvODExNTQxODYvMTVhOGM5NDRlOTdjNWJkNDBmOWI0NWUxMThmOTQ1NzBfX2pwZy5oZWlj/nickname/5LqU5bm057qn5pWw5a2m5pWZ56CU57uE/userid/ODExNTQxODY=/sign/df8d3f7f75681f7bede56692362d6b55"},{"sale_price":"0.00","sell_key":"9323f0181703620b44e5a66d21dbc40d","text":"
“智”讲趣题 “慧”思教学
激发学习兴趣
开拓知识视野
提供学习资源
发展思维能力
培养教学素养
在这里我们探索思考路径,丰富解题策略,感悟数学思想,演绎数学魅力,展现自我风采!
同学们好,我是西安高新第一小学五年级12班的薛骏毅,今天和大家分享倍和倍数问题。
","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1},{"img_height":676,"img_url":"https://ss-mpvolc.meipian.me/users/81154186/78e8f27db08a2777e6d738ac714e0eae__jpg.heic","img_width":1200,"sale_price":"0.00","sell_key":"e72bf9b6727bbed650895c2a5eed24ab","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvODExNTQxODYvNzhlOGYyN2RiMDhhMjc3N2U2ZDczOGFjNzE0ZTBlYWVfX2pwZy5oZWlj/nickname/5LqU5bm057qn5pWw5a2m5pWZ56CU57uE/userid/ODExNTQxODY=/sign/df8d3f7f75681f7bede56692362d6b55"},{"sale_price":"0.00","sell_key":"9323f0181703620b44e5a66d21dbc40d","subtitle_align":"center","subtitle_color":"#010101","subtitle_font_size":"medium","subtitle_style_id":4,"text":"倍和倍数问题","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":6},{"sale_price":"0.00","sell_key":"9323f0181703620b44e5a66d21dbc40d","text":"众所周知,“倍”与“倍数”是数学中经常会用的到两种关系,两者虽然只有一字之差,却是两个不同的数学概念.那么“倍”与“倍数”有什么区别呢?我们一起来看下。
“倍”指的是数量关系,它建立在乘法基础上,倍这时做量词用。例如:公鸡有10只,母鸡有3个10只,我们就说,母鸡的只数是公鸡的3倍,也可以说,10的3倍,就是3个10,即10×3。
“倍数”指的是数与数之间的联系,它建立在整除概念的基础上,它与“因数”相互依存,不能独立存在,没有最大“倍数”,只有最小“倍数”本身。例如,30能被6整除,30是6的倍数,6是30的因数,但30是6的5倍,因为6×5=30,“6×5”表示6的5倍。
在阐述正、反比例关系时,提到“扩大”或“缩小”相同的“倍数”,这里的“倍数”与前面提到的“倍数”的含义是不同的,前面提到的倍数是指整除中一个概念,指的是被除数,它只能是一个整数,后面提到的倍数,是一般除法中的一个概念,指的是商数,它表示两个量相比而得到的数。
随着我们今后学习知识量的增加,倍数的范围会不断的扩大的。倍数既可以是一个整数,同时还可以是分数或者是小数,甚至可以用百分数来表示两个数量之间的倍数关系。
","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1},{"sale_price":"0.00","sell_key":"9323f0181703620b44e5a66d21dbc40d","subtitle_align":"center","subtitle_color":"#010101","subtitle_font_size":"medium","subtitle_style_id":4,"text":"视频讲解","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":6},{"img_height":288,"img_width":512,"sale_price":"0.00","sell_key":"9323f0181703620b44e5a66d21dbc40d","source_platform":"local","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":3,"video_length":372.958,"video_thumbnail":"https://ss-mpvolc.meipian.me/users/81154186/1642745826581__jpg.heic","video_url":"https://video.ivwen.com/users/81154186/b82d45773e8498f57db342162e75fefe.mp4"},{"sale_price":"0.00","sell_key":"9323f0181703620b44e5a66d21dbc40d","subtitle_align":"center","subtitle_color":"#010101","subtitle_font_size":"medium","subtitle_style_id":4,"text":"思路分析","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":6},{"img_height":676,"img_url":"https://ss-mpvolc.meipian.me/users/81154186/fdd917427b919fb81857e3556b6e6938__jpg.heic","img_width":1200,"sale_price":"0.00","sell_key":"68a7fbe875466e736122a8ae33963efa","text":"这道题说的是3的倍数问题。3的倍数特征:一个数的各位数之和是3的倍数,这个数就是3的倍数也就是这个数可以被3整除。由此我们知道竖行的和是3的倍数,橫行的和是3的倍数,竖行的和加橫行的和还是3倍数。这几个数的十位都是1, 6个数(橫行3个竖行3个)的十位加起来是60,是3的倍数,所以我们可以不看十位只看个位。
我们把5个数的个位(2,3,5,7,9)相加是26,因为其中有一个数要被用两次,我们在这5个数里找一个数加上26的和是3的倍数就可以了。(26+7=33)满足条件,这样就确定了中间数是17,把它填入中间的格子里。剩下的4个数随便找一个试一试,我用19试,结果19+17+12=48符合题意,余下13+15+17=45也符合题意,把(19,12)(13,15)这两组数字分别剩余的格子,这道题就做完了。这道题的重点是找中间数——被重复使用的数。
","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvODExNTQxODYvZmRkOTE3NDI3YjkxOWZiODE4NTdlMzU1NmI2ZTY5MzhfX2pwZy5oZWlj/nickname/5LqU5bm057qn5pWw5a2m5pWZ56CU57uE/userid/ODExNTQxODY=/sign/df8d3f7f75681f7bede56692362d6b55"},{"img_height":676,"img_url":"https://ss-mpvolc.meipian.me/users/81154186/affcce37cba5d5e7a6c9e92fe6ba903a__jpg.heic","img_width":1200,"sale_price":"0.00","sell_key":"515a5561011a4e049978d9050e1e2a64","text":"这道题用方程解比较容易。先找最小数,根据题意得知甲>乙>丙,丙最小。就设丙为:X,乙就是:3X-2,甲是:2(3X-2)+4=6X。根据它们3个数的和是78,方程列为:6X+(3X-2)+X=78,解得:X=8。丙是8,乙就是3×8-2=22,甲就是6×8=48.
","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvODExNTQxODYvYWZmY2NlMzdjYmE1ZDVlN2E2YzllOTJmZTZiYTkwM2FfX2pwZy5oZWlj/nickname/5LqU5bm057qn5pWw5a2m5pWZ56CU57uE/userid/ODExNTQxODY=/sign/df8d3f7f75681f7bede56692362d6b55"},{"img_height":676,"img_url":"https://ss-mpvolc.meipian.me/users/81154186/4c42c716e5edfb00f923c54054b5a13e__jpg.heic","img_width":1200,"sale_price":"0.00","sell_key":"cdbefdf1b497be04278510ae1e598019","text":"从题中我们知道了两个倍数5和3,和一个实数6,还知道两个倍数关系中1倍数都是乙,这道题用画图的方法解。我们先画现在5倍的关系图,乙1份,甲5份。然后把甲去掉2份变回原来的3倍关系图,乙的图书在原来的3倍中比现在5倍多6本(乙组给甲组6本),我们就给乙加上1个6,原来的甲是乙的3倍,就给甲加上3个6。根据原来和现在图书的总数没有变,就可以看出这多出的4个(乙1个甲3个)6就是甲被去掉的2份。下面就可以列算式,乙现在的数量:6×(3+1)÷(5-2)=12(本),乙原来的数量:12+6=18(本),甲原来的数量:18×3=54(本)。
","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvODExNTQxODYvNGM0MmM3MTZlNWVkZmIwMGY5MjNjNTQwNTRiNWExM2VfX2pwZy5oZWlj/nickname/5LqU5bm057qn5pWw5a2m5pWZ56CU57uE/userid/ODExNTQxODY=/sign/df8d3f7f75681f7bede56692362d6b55"},{"sale_price":"0.00","sell_key":"9323f0181703620b44e5a66d21dbc40d","subtitle_align":"center","subtitle_color":"#010101","subtitle_font_size":"medium","subtitle_style_id":4,"text":"趣味加油站","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":6},{"sale_price":"0.00","sell_key":"9323f0181703620b44e5a66d21dbc40d","text":"现在转动你聪明的小脑筋,想一想下面的思考题吧!
1、有大、小两桶酒,大桶有酒120千克,小桶有酒90千克,两桶卖出同样多的酒后,大桶剩下的酒正好是小桶的4倍。两桶各剩下多少千克酒?各卖出多少酒?
2、六位数A4273B能被72整除,求这个六位数是多少?
","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1},{"sale_price":"0.00","sell_key":"9323f0181703620b44e5a66d21dbc40d","subtitle_align":"center","subtitle_color":"#010101","subtitle_font_size":"medium","subtitle_style_id":4,"text":"辅导教师","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":6},{"img_height":960,"img_url":"https://ss-mpvolc.meipian.me/users/81154186/166a722b1d2a8e626a572d74508ca737__jpg.heic","img_width":720,"sale_price":"0.00","sell_key":"9546c6de25ebafaa134305d82ccc83b5","text":"西安高新第一小学 优秀教师 唐宁博
","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvODExNTQxODYvMTY2YTcyMmIxZDJhOGU2MjZhNTcyZDc0NTA4Y2E3MzdfX2pwZy5oZWlj/nickname/5LqU5bm057qn5pWw5a2m5pWZ56CU57uE/userid/ODExNTQxODY=/sign/df8d3f7f75681f7bede56692362d6b55"},{"sale_price":"0.00","sell_key":"9323f0181703620b44e5a66d21dbc40d","subtitle_align":"center","subtitle_color":"#010101","subtitle_font_size":"medium","subtitle_style_id":4,"text":"我们的老师们","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":6},{"img_height":720,"img_url":"https://ss-mpvolc.meipian.me/users/81154186/27f200934a0468a28f68bf38ecbc5758__jpg.heic","img_width":960,"sale_price":"0.00","sell_key":"0452c8b08a7d0c59a5df4e712fe00f70","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvODExNTQxODYvMjdmMjAwOTM0YTA0NjhhMjhmNjhiZjM4ZWNiYzU3NThfX2pwZy5oZWlj/nickname/5LqU5bm057qn5pWw5a2m5pWZ56CU57uE/userid/ODExNTQxODY=/sign/df8d3f7f75681f7bede56692362d6b55"},{"sale_price":"0.00","sell_key":"9323f0181703620b44e5a66d21dbc40d","subtitle_align":"center","subtitle_color":"#010101","subtitle_font_size":"medium","subtitle_style_id":3,"text":"感谢聆听","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":6}]},"ext":{"id":264729398,"article_id":314014710,"ip":"113.138.201.137","origin_status":0,"edit_from":0,"client_type":2,"password_v2":"","uv":1,"font_id":0,"title_style":"","rich_text_title":null,"gift_switch":1,"deleted_at":0,"recycle_expired_at":0,"share_with_nickname":1,"enable_watermark":1,"music_id":0,"music_source":0,"_auto_update_time":"2022-06-09 15:27:54"},"extend":{"id":72742752,"article_id":314014710,"enable_download":1,"cover_width":1024,"cover_height":928}},"author":{"id":81154186,"nickname":"五年级数学教研组","head_img_url":"https://ss-mpvolc.meipian.me/users/81154186/eaa1fa34251842d7819cce5111d7987d.jpg","column_visit":278,"signature":"","favorite_count":0,"follow_count":7,"follower_count":198,"famous_type":0,"autoplay_music":1,"text_preference":2,"client_type":2,"reward_word":"如果喜欢我的作品,请打赏鼓励哦!","member_type":0,"wechat_id":"ojq1tt83NeT99gAfOeZ0ImkvHW3w","country":"澳大利亚","province":"维多利亚","city":"墨尔本","career":null,"birthday":0,"gender":1,"reg_time":1581413926,"e_id":"","bedge_img":"","label_img":"","review_level":1,"enable_reward_switch":false,"enable_water_mark_switch":1,"plainNickname":"五年级数学教研组","member_status":0,"member_img":"","ext":null,"phone_num":"186****2024","head_attach_img":null,"badge":null,"onlive":false,"qualification":null,"biz_info":{"is_biz_user":false,"share_domains":[]},"headwear":{"icon":"","animation":"","config":{},"param":{}},"cover_img_url":"","weibo_id":"","vwen_id":"a01914999f1b29a4f2bf4664ae542beb","im_id":"","yx_im_token":"","last_visit_time":1719640806,"ip_address":"123.138.183.201","device_id":"d19ea186b6ea480cab0eee006a62ca46","reviewer":0,"review_time":0,"account_state":0,"balance":0,"last_contribution_time":0,"member_expire_time":0,"member_qq_group":0,"web_has_login":1,"longtitude":"108.8835600","latitude":"34.2450830","last_client_type":1,"level":0,"province_user":"维多利亚","city_user":"墨尔本","user_id":81154186,"qq_id":"","apple_id":"","badge_img_url":"","reward_url":"https://www.meipian.cn/wap/reward/view/index.html?mask_id=4098912s&author_user_id=81154186&article_title=%E3%80%90%E5%B0%91%E5%B9%B4%E6%95%B0%E5%AD%A6%E5%AE%B6%E3%80%91","memo_name":""},"content":[{"img_height":928,"img_url":"https://ss-mpvolc.meipian.me/users/81154186/15a8c944e97c5bd40f9b45e118f94570__jpg.heic","img_width":1024,"sale_price":"0.00","sell_key":"adfa18399c586ff0250d6c01f7719fd8","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvODExNTQxODYvMTVhOGM5NDRlOTdjNWJkNDBmOWI0NWUxMThmOTQ1NzBfX2pwZy5oZWlj/nickname/5LqU5bm057qn5pWw5a2m5pWZ56CU57uE/userid/ODExNTQxODY=/sign/df8d3f7f75681f7bede56692362d6b55"},{"sale_price":"0.00","sell_key":"9323f0181703620b44e5a66d21dbc40d","text":"“智”讲趣题 “慧”思教学
激发学习兴趣
开拓知识视野
提供学习资源
发展思维能力
培养教学素养
在这里我们探索思考路径,丰富解题策略,感悟数学思想,演绎数学魅力,展现自我风采!
同学们好,我是西安高新第一小学五年级12班的薛骏毅,今天和大家分享倍和倍数问题。
","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1},{"img_height":676,"img_url":"https://ss-mpvolc.meipian.me/users/81154186/78e8f27db08a2777e6d738ac714e0eae__jpg.heic","img_width":1200,"sale_price":"0.00","sell_key":"e72bf9b6727bbed650895c2a5eed24ab","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvODExNTQxODYvNzhlOGYyN2RiMDhhMjc3N2U2ZDczOGFjNzE0ZTBlYWVfX2pwZy5oZWlj/nickname/5LqU5bm057qn5pWw5a2m5pWZ56CU57uE/userid/ODExNTQxODY=/sign/df8d3f7f75681f7bede56692362d6b55"},{"sale_price":"0.00","sell_key":"9323f0181703620b44e5a66d21dbc40d","subtitle_align":"center","subtitle_color":"#010101","subtitle_font_size":"medium","subtitle_style_id":4,"text":"倍和倍数问题","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":6},{"sale_price":"0.00","sell_key":"9323f0181703620b44e5a66d21dbc40d","text":"众所周知,“倍”与“倍数”是数学中经常会用的到两种关系,两者虽然只有一字之差,却是两个不同的数学概念.那么“倍”与“倍数”有什么区别呢?我们一起来看下。
“倍”指的是数量关系,它建立在乘法基础上,倍这时做量词用。例如:公鸡有10只,母鸡有3个10只,我们就说,母鸡的只数是公鸡的3倍,也可以说,10的3倍,就是3个10,即10×3。
“倍数”指的是数与数之间的联系,它建立在整除概念的基础上,它与“因数”相互依存,不能独立存在,没有最大“倍数”,只有最小“倍数”本身。例如,30能被6整除,30是6的倍数,6是30的因数,但30是6的5倍,因为6×5=30,“6×5”表示6的5倍。
在阐述正、反比例关系时,提到“扩大”或“缩小”相同的“倍数”,这里的“倍数”与前面提到的“倍数”的含义是不同的,前面提到的倍数是指整除中一个概念,指的是被除数,它只能是一个整数,后面提到的倍数,是一般除法中的一个概念,指的是商数,它表示两个量相比而得到的数。
随着我们今后学习知识量的增加,倍数的范围会不断的扩大的。倍数既可以是一个整数,同时还可以是分数或者是小数,甚至可以用百分数来表示两个数量之间的倍数关系。
","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1},{"sale_price":"0.00","sell_key":"9323f0181703620b44e5a66d21dbc40d","subtitle_align":"center","subtitle_color":"#010101","subtitle_font_size":"medium","subtitle_style_id":4,"text":"视频讲解","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":6},{"img_height":288,"img_width":512,"sale_price":"0.00","sell_key":"9323f0181703620b44e5a66d21dbc40d","source_platform":"local","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":3,"video_length":372.958,"video_thumbnail":"https://ss-mpvolc.meipian.me/users/81154186/1642745826581__jpg.heic","video_url":"https://video.ivwen.com/users/81154186/b82d45773e8498f57db342162e75fefe.mp4"},{"sale_price":"0.00","sell_key":"9323f0181703620b44e5a66d21dbc40d","subtitle_align":"center","subtitle_color":"#010101","subtitle_font_size":"medium","subtitle_style_id":4,"text":"思路分析","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":6},{"img_height":676,"img_url":"https://ss-mpvolc.meipian.me/users/81154186/fdd917427b919fb81857e3556b6e6938__jpg.heic","img_width":1200,"sale_price":"0.00","sell_key":"68a7fbe875466e736122a8ae33963efa","text":"这道题说的是3的倍数问题。3的倍数特征:一个数的各位数之和是3的倍数,这个数就是3的倍数也就是这个数可以被3整除。由此我们知道竖行的和是3的倍数,橫行的和是3的倍数,竖行的和加橫行的和还是3倍数。这几个数的十位都是1, 6个数(橫行3个竖行3个)的十位加起来是60,是3的倍数,所以我们可以不看十位只看个位。
我们把5个数的个位(2,3,5,7,9)相加是26,因为其中有一个数要被用两次,我们在这5个数里找一个数加上26的和是3的倍数就可以了。(26+7=33)满足条件,这样就确定了中间数是17,把它填入中间的格子里。剩下的4个数随便找一个试一试,我用19试,结果19+17+12=48符合题意,余下13+15+17=45也符合题意,把(19,12)(13,15)这两组数字分别剩余的格子,这道题就做完了。这道题的重点是找中间数——被重复使用的数。
","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvODExNTQxODYvZmRkOTE3NDI3YjkxOWZiODE4NTdlMzU1NmI2ZTY5MzhfX2pwZy5oZWlj/nickname/5LqU5bm057qn5pWw5a2m5pWZ56CU57uE/userid/ODExNTQxODY=/sign/df8d3f7f75681f7bede56692362d6b55"},{"img_height":676,"img_url":"https://ss-mpvolc.meipian.me/users/81154186/affcce37cba5d5e7a6c9e92fe6ba903a__jpg.heic","img_width":1200,"sale_price":"0.00","sell_key":"515a5561011a4e049978d9050e1e2a64","text":"这道题用方程解比较容易。先找最小数,根据题意得知甲>乙>丙,丙最小。就设丙为:X,乙就是:3X-2,甲是:2(3X-2)+4=6X。根据它们3个数的和是78,方程列为:6X+(3X-2)+X=78,解得:X=8。丙是8,乙就是3×8-2=22,甲就是6×8=48.
","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvODExNTQxODYvYWZmY2NlMzdjYmE1ZDVlN2E2YzllOTJmZTZiYTkwM2FfX2pwZy5oZWlj/nickname/5LqU5bm057qn5pWw5a2m5pWZ56CU57uE/userid/ODExNTQxODY=/sign/df8d3f7f75681f7bede56692362d6b55"},{"img_height":676,"img_url":"https://ss-mpvolc.meipian.me/users/81154186/4c42c716e5edfb00f923c54054b5a13e__jpg.heic","img_width":1200,"sale_price":"0.00","sell_key":"cdbefdf1b497be04278510ae1e598019","text":"从题中我们知道了两个倍数5和3,和一个实数6,还知道两个倍数关系中1倍数都是乙,这道题用画图的方法解。我们先画现在5倍的关系图,乙1份,甲5份。然后把甲去掉2份变回原来的3倍关系图,乙的图书在原来的3倍中比现在5倍多6本(乙组给甲组6本),我们就给乙加上1个6,原来的甲是乙的3倍,就给甲加上3个6。根据原来和现在图书的总数没有变,就可以看出这多出的4个(乙1个甲3个)6就是甲被去掉的2份。下面就可以列算式,乙现在的数量:6×(3+1)÷(5-2)=12(本),乙原来的数量:12+6=18(本),甲原来的数量:18×3=54(本)。
","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":1,"watermark":"?meipian-watermark/bucket/ivwen/key/dXNlcnMvODExNTQxODYvNGM0MmM3MTZlNWVkZmIwMGY5MjNjNTQwNTRiNWExM2VfX2pwZy5oZWlj/nickname/5LqU5bm057qn5pWw5a2m5pWZ56CU57uE/userid/ODExNTQxODY=/sign/df8d3f7f75681f7bede56692362d6b55"},{"sale_price":"0.00","sell_key":"9323f0181703620b44e5a66d21dbc40d","subtitle_align":"center","subtitle_color":"#010101","subtitle_font_size":"medium","subtitle_style_id":4,"text":"趣味加油站","text_center":0,"text_color":0,"text_large":0,"text_strong":0,"type":6},{"sale_price":"0.00","sell_key":"9323f0181703620b44e5a66d21dbc40d","text":"现在转动你聪明的小脑筋,想一想下面的思考题吧!
1、有大、小两桶酒,大桶有酒120千克,小桶有酒90千克,两桶卖出同样多的酒后,大桶剩下的酒正好是小桶的4倍。两桶各剩下多少千克酒?各卖出多少酒?
2、六位数A4273B能被72整除,求这个六位数是多少?
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