北京版三年级数学上册电子课本教材(义务教育教科书)

一、 乘法····················································1
　　口算乘法
　　笔算乘法
二、 千米、分米和毫米的认识··························17
　　千米的认识
　　分米和毫米的认识
三、 除法····················································22
四、 解决问题····················································47
五、 角的初步认识·················································62
六、 长方形和正方形的周长·································66
　　1.认识长方形和正方形
　　2.长方形和正方形的周长
　　测量篮球场··················································76
七、 24时计时法···················································78
　　24时计时法
　　做聪明的时间管理者
八、 数学百花园····················································85
　　1.等量代换
　　2.合理搭配
九、 总复习····················································88

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