①2.4X10³m= dm= mm= μm②45mm= m= dm= μm③2.5X10³μm= m= km= nm④8.4X10的负六次方= mm= m= nm
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![①2.4X10³m= dm= mm= μm②45mm= m= dm= μm③2.5X10³μm= m= km= nm④8.4X10的负六次方= mm= m= nm](/uploads/image/z/8282449-1-9.jpg?t=%E2%91%A02.4X10%26%23179%3Bm%3D+dm%3D+mm%3D+%CE%BCm%E2%91%A145mm%3D+m%3D+dm%3D+%CE%BCm%E2%91%A22.5X10%26%23179%3B%CE%BCm%3D+m%3D+km%3D+nm%E2%91%A38.4X10%E7%9A%84%E8%B4%9F%E5%85%AD%E6%AC%A1%E6%96%B9%3D+mm%3D+m%3D+nm)
①2.4X10³m= dm= mm= μm②45mm= m= dm= μm③2.5X10³μm= m= km= nm④8.4X10的负六次方= mm= m= nm
①2.4X10³m= dm= mm= μm
②45mm= m= dm= μm
③2.5X10³μm= m= km= nm
④8.4X10的负六次方= mm= m= nm
①2.4X10³m= dm= mm= μm②45mm= m= dm= μm③2.5X10³μm= m= km= nm④8.4X10的负六次方= mm= m= nm
2.8公顷=(28000)平方米?6分=(0.06)元 250秒=(25/6)分 650立方厘米=(0.65)立方分米 比较 8吨60千克(>)860千克 4米20厘米(<)4200