小数的初步认识可乐2.50元奥利奥12.99元彩笔7.8元酸奶特价0.99元PPT模板下载:www.1ppt.com/moban/行业PPT模板:www.1ppt.com/hangye/节日PPT模板:www.1ppt.com/jieri/PPT素材下载:www.1ppt.com/sucai/PPT背景图片:www.1ppt.com/beijing/PPT图表下载:www.1ppt.com/tubiao/优秀PPT下载:www.1ppt.com/xiazai/PPT教程:www.1ppt.com/powerpoint/Word教程:www.1ppt.com/word/Excel教程:www.1ppt.com/excel/资料下载:www.1ppt.com/ziliao/PPT课件下载:www.1ppt.com/kejian/范文下载:www.1ppt.com/fanwen/试卷下载:www.1ppt.com/shiti/教案下载:www.1ppt.com/jiaoan/你会读小数吗?他们分别表示多少钱?元角分2.5012.990.992元5角12元9角9分9角9分只用米作单位怎么表示。王东身高1米3分米。01米1分米110123456789()()米把1米平均分成10份()米0.13分米01米123456789()()米310()米0.31元是10角。7角是元,还可以写成()元。()()7100.7做一做5角是元,还可以写成()元8元5角写成小数是()元。1050.58.5