一、填一填。500克()千克()千克17元7角5分()元86.16个位上的6表示()个(),百分位上的6表示()个()。苹果和梨的单价分别是每千克5.9元和5.1元，买x千克苹果和c千克梨，共需()元。大货车每次运货x吨，运了30次，共运货_吨。二、比大小。0.8390.9686.536.195.075.944.0084.0016.926.2156.5571.1三、口算。0.7580.50.0071004.75105.2510000.060.080.8901.7803.22.14.91.924.430.1779.552.154.234.486.8843.10.1681000四、列竖式计算。0.142.37.60.568.990.830.3979.50.340.080.373.40.270.16793.50.810.90.580.146.66.60.23.93五、计算。9.173.649.488.33(4.030.2)2.087.53.620.98110.80.648.60.50.240.390.7677.572.5250.320.085.90.74.40.41300.335.67六、解
