1、三、用小数计算下面各题。6元8角4分3元6角5分 4t26kg772kg 7m40cm3m84cm 28kg8kg700g 9km400m3km50m 7km5km640m 四、按规律填数。(1) 0.2 , 0.6 , 1 , 1.4 , _ , _ 。(2) 1.89 , 1.92 , 1.95 , 1.98 , _ , _ 。(3) 5.207 , 5.208 , 5.209 , 5.21 , _ , _ 。(3) 6.397 , 6.392 , 6.387 , 6.382 , _ , _ 。1.40.1 50.5 72.12 0.590.09 4.60.5 8.53.1 84.6 0.
2、560.3 5.790.47 34.516.17 7.155.45 67.638.7 9.743.88 30.363.16 7.720.59 70.291.61 9元6角1分1元5角2分 5t68kg294kg 8m98cm4m66cm 21kg5kg400g 8km700m1km70m 10km4km890m (1) 0.6 , 1.2 , 1.8 , 2.4 , _ , _ 。(2) 1.53 , 1.59 , 1.65 , 1.71 , _ , _ 。(3) 6.396 , 6.403 , 6.41 , 6.417 , _ , _ 。(3) 9.275 , 9.271 , 9.267 ,
3、 9.263 , _ , _ 。90.1 7.74.7 42.54 0.910.04 50.1 8.62.9 7.54.3 0.780.25 2.80.22 46.165.91 7.684.48 72.527.3 8.96.34 42.091.92 6.950.99 20.528.49 6元8角9分1元5角8分 4t123kg677kg 8m25cm2m10cm 29kg3kg300g 10km100m1km50m 6km5km870m (1) 0.1 , 0.8 , 1.5 , 2.2 , _ , _ 。(2) 5.51 , 5.53 , 5.55 , 5.57 , _ , _ 。(3) 8
4、.042 , 8.044 , 8.046 , 8.048 , _ , _ 。(3) 9.294 , 9.29 , 9.286 , 9.282 , _ , _ 。3.10.6 1.14.1 78.59 0.810.08 6.20.4 5.60.3 7.43.7 0.990.45 8.190.24 61.767.75 8.852.17 732.5 9.11.36 25.192.75 2.680.53 64.182.18 8元8角6分3元7角1分 8t42kg355kg 8m81cm2m98cm 21kg7kg800g 10km200m1km30m 9km4km840m (1) 0.7 , 1.3
5、, 1.9 , 2.5 , _ , _ 。(2) 4.98 , 5.04 , 5.1 , 5.16 , _ , _ 。(3) 2.042 , 2.047 , 2.052 , 2.057 , _ , _ 。(3) 6.82 , 6.811 , 6.802 , 6.793 , _ , _ 。30.5 2.73.4 97.44 0.50.37 5.50.1 6.24.6 7.21.6 0.790.05 6.50.77 30.994.31 7.41.19 52.226 8.211.5 64.472.93 2.270.54 61.733.47 7元4角9分3元1角2分 1t11kg416kg 7m45c
6、m4m92cm 14kg6kg700g 7km400m3km60m 7km3km140m (1) 0.8 , 1.2 , 1.6 , 2 , _ , _ 。(2) 4.78 , 4.85 , 4.92 , 4.99 , _ , _ 。(3) 8.29 , 8.295 , 8.3 , 8.305 , _ , _ 。(3) 9.842 , 9.835 , 9.828 , 9.821 , _ , _ 。6.80.2 3.66.7 53.22 0.550.32 6.20.1 5.84.7 8.50.8 0.930.45 2.90.17 42.984.8 9.891.71 54.51.9 7.445.8
7、4 73.788.69 9.750.55 21.694.96 6元9角2分3元3角6分 7t83kg159kg 7m64cm4m68cm 23kg6kg600g 9km200m3km70m 10km4km400m (1) 0.8 , 1 , 1.2 , 1.4 , _ , _ 。(2) 3.73 , 3.79 , 3.85 , 3.91 , _ , _ 。(3) 5.811 , 5.814 , 5.817 , 5.82 , _ , _ 。(3) 6.99 , 6.982 , 6.974 , 6.966 , _ , _ 。8.40.1 0.51.5 80.42 0.860.31 8.70.1 6
8、.90.1 74.3 0.50.46 2.760.06 96.523.35 7.753.11 83.532 7.525 89.544.76 1.090.81 66.62.28 9元7角6分5元0角2分 9t163kg160kg 9m93cm4m18cm 30kg7kg100g 7km700m3km30m 7km5km890m (1) 0.7 , 1.2 , 1.7 , 2.2 , _ , _ 。(2) 4.38 , 4.41 , 4.44 , 4.47 , _ , _ 。(3) 1.23 , 1.239 , 1.248 , 1.257 , _ , _ 。(3) 8.322 , 8.313 , 8.304 , 8.295 , _ , _ 。5.90.1 6.99.1 55.64 0.660.49 2.40.3 7.72.9 6.85.8 0.580.45 7.210.68 69.869.43 7.043.06 95.921.9 9.771.25 106.35 3.480.37 43.291.18 7元1角7分4元4角2分 1t21kg567kg 8m43cm2m75cm 21kg6kg700g 6km300m5km60m 6km5km270m (1) 0.6 , 1.3 , 2 , 2.7 , _ , _ 。(2) 5.89 , 5.96 , 6.
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