《百分数与小数的互化》PPT课件.ppt

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1、百分数与小数的互换热身运动:你能把下面的小数化成分数吗？＝＝＝＝0.7311.990.10.23你能把下面的分数化成小数吗？＝0.7＝0.51＝0.374＝1.33.把下面的分数化为百分数.＝7%＝35%＝1.8%＝287%27%124%0.4%0.251.40.123谁能帮我们按从大到小的顺序排列?小数百分数你可以把它们变成同一类型的数吗？情景导入小数百分数小数点向右移动两位,加上%0.250.1231.4＝25%＝12.3%＝140%你发现了什么？ms.dkqnvxdj.net/f4a7/878.htmlms.

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