人教版三年级下册《数学与思维》奥数教材 下载本文

武昌区三道街小学

三年级下册 数学与思维

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目 录

第一讲 辨认方向 ······································································ 1 第二讲 将错就错计算商 ····························································· 3 第三讲 用除法解决周期问题 ······················································· 4 第四讲 巧填除法竖式 ································································ 5 第五讲 倒推计算被除数 ····························································· 6 第六讲 平均数问题 ··································································· 7 第七讲 巧填乘法竖式 ································································ 8 第八讲 简单的间隔问题 ····························································· 9 第九讲 乘除法解决问题(1) ·················································· 10 第十讲 乘除法解决问题(2) ···················································· 11 第十一讲 乘除法解决问题(3) ················································· 12 第十二讲 巧算面积(1) ························································ 13 第十三讲 巧算面积(2) ·························································· 14 第十四讲 巧算面积(3) ·························································· 15 第十五讲 巧算面积(4) ·························································· 16 第十六讲 年月日问题 ······························································ 17 第十七讲 搭配的学问(1) ······················································· 18 第十八讲 搭配的学问(2) ······················································· 19 第十九讲 年龄问题(1) ·························································· 20 第二十讲 年龄问题(2) ·························································· 21

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第一讲 辨认方向

例题:看图填空。

(1)图书馆在学校的 面,超市在学校的 面。 (2)邮局在学校的______面;小明家在学校的______面。 (3)学校在图书馆的______面,在超市的______面。

练习1.看图填空。

(1) 图书馆在学校的 面,超市在学校的 面。 (2)动物园在学校的 面,邮局在学校的 面。 (3)图书馆在动物园的 方向,超市在动物园的 面。 (4)图书馆在邮局的 面,邮局在超市的 方向。

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练习2.根据路线图回答问题。 .

(1)从火车站出发,先向 行驶 站到解放路,再向 行驶 站到银行,再向 行驶 站到广场,最后向 行驶 站到少年宫。

(2)小刚坐了4站,在人民街下车,他可能是在哪站上车的?

练习3.看路线图,填一填。

(1)超市在图书馆的 面;小明家在图书馆的 面;图书馆在商场的 面;图书馆在小明家的 面。

(2)从学校到博物馆的最近路线是:先向 走 米到图书馆,再向 走 米到博物馆。

(3)从小明家到超市的最近路线是:先向 走 米到图书馆,再向 走 米到超市。

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