四年级下册小数除法练习题5页.doc

四年级下册小数除法练习题 1口算：1.230.486 4.623 140.56.840.72120.71.10.7249.665.213 12.55 0.12580.50.32160.51.10.50.141.2546.32.1 0.924 61.20.487.63.86.81.70.56142.40.6 840.04 0.490.7 6.33.1960.6 1.550.5 0.350.07 361.2 4.83 1.80.5 0.054 05.3213.26 33.55 3.618 0.542.72错题剖析5.1250.24 100500=5 0.81917=0.47 40