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0.8m=_____cm=____um 6um=_____cm=_____mm 3.5km=____m=____cm=____mm 0.04mm=____m=____um
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0.8m=__80__cm=__800000__um
6um=___0.0006__cm=___0.006__mm
3.5km=__3500__m=__350000__cm=__3500000__mm
0.04mm=__0.00004__m=__40__um
6um=___0.0006__cm=___0.006__mm
3.5km=__3500__m=__350000__cm=__3500000__mm
0.04mm=__0.00004__m=__40__um
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