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西5数上 五 多边形面积的计算 练习 PPT课件
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这是一份西5数上 五 多边形面积的计算 练习 PPT课件,文件包含练习二十四pptx、练习二十五pptx、练习二十一pptx、练习二十pptx、练习十九pptx、练习二十三pptx、练习二十二pptx等7份课件配套教学资源,其中PPT共71页, 欢迎下载使用。
西南师大·五年级上册练习二十三1.填空。250000m²=( )hm²3.2hm²=( )m²3.08hm²=( )m²5.108hm²=( )m²48000m²=( )hm²38200m²=( )hm²253200030800510804.83.822.某飞机场新建一条长2500m,宽80m的跑道。这条跑道占地多少平方米?合多少公顷?飞机跑道占地面积:2500×80=200000(m²)=20(hm²)答:这条跑道占地200000平方米,合20公顷。3.填空。26km²=( )hm²7500hm²=( )km²4.8km²=( )m²38000000hm²=( )km²830000000m²=( )km²25.2hm²=( )m²26007548000003800008302520004.清溪村的土地是一个近似的三角形。这个村的土地面积大约是多少平方千米?(用计算器计算。) 6500×4800÷2=15600000(m²)=15.6(km²)答:这个村的土地面积大约是15.6平方千米。
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