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思维训练:1-6年级思维训练每日一题-957期

  • 2026-11-04 11:08:37
思维训练:1-6年级思维训练每日一题-957期

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北师大版数学微课堂苏教数学微课堂

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九年级语文全册微课堂智慧教育平台
跟我写作文奥数课堂
语文基础知识精讲汉语拼音学习
一年级语文资料合集二年级语文资料合集
三年级下册测试卷合集数学思维训练

提示:点击上方标签跳转相应资源链接

一年级

       为迎接国庆节,学校在校门口先插了一行红色旗子,有7面。在每两个红色旗子中间又分别插了一面黄色旗子。黄色旗子一共有几面?

● 此题由朴园团队推荐 ●

二年级

 哥哥有19张卡片,弟弟有12张卡片,哥哥给弟弟2张后,又送给他的好朋友4张,这时谁的卡片多?

● 此题由河东团队推荐 ●

三年级

     妈妈今年30岁,女儿今年2岁。几年后母女俩的年龄之和是50岁?

● 此题由临沭团队推荐 ●

四年级

       一个长方形的周长是一个正方形周长的3倍,已知长方形的宽与正方形的边长都是9厘米。长方形的长是多少厘米?

● 此题由莒南团队推荐 ●

五年级

       在下图中的几个圈内各填一个数,使每一条直线上的三个数中,当中的数是两边两个数的平均数,现在已经填好两个数,那么黄色圈中填多少?

● 此题由沂南团队推荐 ●

六年级

      如图ABCD为平行四边形,E为BD中点,CG=GF=FB,三角形EGF面积为3平方厘米。平行四边形ABCD的面积是多少平方厘米?

●此题由罗庄团队推荐 ●

      请做完题之前不要看下面的答案!!独立思考很重要!切记!切记!切记!

答

案

解

析

一年级

二年级

【答案】弟弟的卡片多。

【解析】根据题意:弟弟有12张卡片,哥哥给弟弟2张,那弟弟就有12+2=14(张),哥哥原来有19张,给弟弟2张后还有19-2=17(张),然后又送给他的好朋友4张,那哥哥现在就有17-4=13(张),哥哥有13张,弟弟有14张,13<14,所以弟弟的卡片多。

三年级

【答案】9年后母女俩的年龄和是50岁。     【解析】根据“妈妈今年30岁,女儿今年2岁”,可以求出今年母女俩的年龄之和是30+2=32(岁);因为“几年后母女俩的年龄之和是50岁”,50-32=18(岁),所以母女俩在这几年内一共增长了18岁。在同样的时间段内,人的年龄都在同时增长,所以妈妈和女儿增长的年龄是同样多的,每人增长了18÷2=9(岁)。也就是说,9年后母女俩的年龄之和是50岁。

四年级

【答案】长方形的长是45厘米。

【解析】根据“正方形的边长是9厘米”可知:正方形的周长是9×4=36(厘米);根据“一个长方形的周长是一个正方形周长的3倍”可知:长方形的周长是36×3=108(厘米),那么长+宽=108÷2=54(厘米)。因为“长方形的宽是9厘米”,所以长方形的长是54-9=45(厘米)。

五年级

【答案】黄色圈中填 19。

【解析】如下图所示,将剩下的圆圈内标上字母。

      根据题意,可得A=(13+17)÷2=15。观察上图,还可以得知:B+15=D+17=2C,即B比D多2,也就是B=D+2。因此,2D=B+13=D+2+13,得D=15。所以C=(17+15)÷2=16,X=2C-13=19。

六年级

【答案】平行四边形面积为36平方厘米。

【解析】方法一:如图①,连接CE,因等底等高的三角形面积相等,已知CG=GF=FB,所以S△CEG=S△EGF=S△EFB=3平方厘米(等底同高),则S△CBE=3×3=9平方厘米。因为E为BD中点,所以S△CED=S△CEB=9平方厘米(等底同高),S△CBD=2×9=18平方厘米,S△ADB =S△CDB,所以平行四边形ABCD的面积为18×2=36(平方厘米)。

    方法二:如图②,连接DG,由CG=GF=FB,可知S△GEF=S△BEF=3平方厘米(等底同高),所以S△BGE=6平方厘米,S△DGE=S△BGE=6平方厘米(等底同高),则S△DBG=12平方厘米;因为GB=2CG,所以S△DGB=2S△DGC(高相等),即S△DGC=12÷2=6平方厘米,即S△CBD=12+6=18平方厘米,平行四边行ABCD的面积为36平方厘米。

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  1. CONNECT:[ UseTime:0.000552s ] mysql:host=172.18.0.4;port=3306;dbname=www_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000642s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000356s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000341s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000622s ]
  6. SELECT * FROM `set` [ RunTime:0.000363s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000833s ]
  8. SELECT * FROM `article` WHERE `id` = 536105 LIMIT 1 [ RunTime:0.000484s ]
  9. UPDATE `article` SET `lasttime` = 1793797168 WHERE `id` = 536105 [ RunTime:0.001790s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000365s ]
  11. SELECT * FROM `article` WHERE `id` < 536105 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000557s ]
  12. SELECT * FROM `article` WHERE `id` > 536105 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000534s ]
  13. SELECT * FROM `article` WHERE `id` < 536105 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000617s ]
  14. SELECT * FROM `article` WHERE `id` < 536105 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000735s ]
  15. SELECT * FROM `article` WHERE `id` < 536105 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000669s ]
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