二年级数学下册课件 千以内数的认识与表达 4（沪教版）

课件10张PPT。沪教版二年级数学下册千以内数的认识与表达学习目标：
1. 认识千以内的数。
2. 能够熟练正确地读、写千以内各数。● ● ● ● ● ● ● ● ● ●
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数点子比赛● ● ● ● ● ● ● ● ● ●
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数点子比赛数点子比赛千数图看图填空● ● ● ● ● ● ● ● ● ●
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10里面有( )个1;
100里面有( )个10;
1000里面有( )个100。101010 中国第一高楼 上海金茂大厦 高421米选择你喜欢的一种学具在数位表上摆出421421是由4个百、2个十和1个一组成的。提示二:
在我们遇到困难或敌人时也可以拨打这个数提示一:
它的价格与世界冠军刘翔有关110元提示一:
它的价格是一个三位数
每一位数上数字相同提示二:
它的价格是一个最大的三位数999元三桶花生米一共600粒,每桶大约多少粒?100粒200粒300粒