5.4小数的性质一、判断下列各题。对的打√,错的打×。(1)6.00元=6元()(2)7元=0.7元()(3)9米=9.00米()(4)7.04吨=7.4吨()(5)4.6千克=4.600千克()二、化简下面小数。1.900.1020104.21003.10405.003.10三、不改变数的大小,将下列各数改写成三位小数。0.69003.60000.080090.01.09001.20答案:一、√×√×√二、1.90=1.90.1020=0.102104.2100=104.213.1040=3.1045.00=53.10=3.1三、0.6900=0.6903.6000=3.6000.0800=0.08090.0=90.0001.0900=1.0901.20=1.200