1、三、用小数计算下面各题。9元4角1分1元6角4分 8t172kg576kg 9m17cm5m23cm 27kg6kg800g 10km600m2km60m 6km5km840m 四、按规律填数。(1) 0.9 , 1 , 1.1 , 1.2 , _ , _ 。(2) 5.42 , 5.51 , 5.6 , 5.69 , _ , _ 。(3) 1.314 , 1.318 , 1.322 , 1.326 , _ , _ 。(3) 6.211 , 6.205 , 6.199 , 6.193 , _ , _ 。4.90.6 8.68.3 31.69 0.870.4 5.80.6 6.21.1 9.11
2、.2 0.810.16 8.160.87 26.077.19 9.086.24 792.1 8.771.78 37.151.8 5.880.3 75.277.08 7元9角8分3元7角8分 5t75kg912kg 7m11cm1m19cm 23kg2kg800g 10km400m1km50m 7km5km250m (1) 0.2 , 0.6 , 1 , 1.4 , _ , _ 。(2) 7.79 , 7.86 , 7.93 , 8 , _ , _ 。(3) 7.476 , 7.479 , 7.482 , 7.485 , _ , _ 。(3) 9.311 , 9.31 , 9.309 , 9.3
3、08 , _ , _ 。4.90.1 0.21.4 94.58 0.560.21 4.50.2 83.6 8.23.2 0.90.49 9.140.39 89.532.96 8.363.62 91.139.4 9.823.65 65.012.45 5.660.31 51.455.62 6元3角8分3元3角5分 3t107kg366kg 6m29cm3m79cm 10kg2kg200g 9km300m3km70m 8km1km120m (1) 0.2 , 0.5 , 0.8 , 1.1 , _ , _ 。(2) 9.56 , 9.64 , 9.72 , 9.8 , _ , _ 。(3) 4.69
4、6 , 4.701 , 4.706 , 4.711 , _ , _ 。(3) 9.449 , 9.446 , 9.443 , 9.44 , _ , _ 。3.40.7 5.89.8 19.74 0.550.2 8.30.5 9.10.7 6.63.6 0.990.23 2.270.14 807.88 8.471.79 60.922.2 8.331.27 56.615.86 2.450.3 55.478.95 7元7角7分3元2角1分 1t19kg765kg 9m51cm2m69cm 25kg6kg200g 9km100m1km20m 6km4km760m (1) 0.6 , 1.5 , 2.4
5、 , 3.3 , _ , _ 。(2) 5.15 , 5.22 , 5.29 , 5.36 , _ , _ 。(3) 8.716 , 8.717 , 8.718 , 8.719 , _ , _ 。(3) 9.461 , 9.456 , 9.451 , 9.446 , _ , _ 。1.40.2 4.84.1 38.78 0.650.44 40.5 7.31.7 6.30.5 0.830.36 5.340.89 77.283.46 9.76.97 95.313.2 9.371.21 97.624.16 4.540.08 40.894.78 9元9角9分4元6角9分 4t154kg290kg 7m
6、22cm4m62cm 27kg8kg900g 10km800m3km30m 7km2km140m (1) 0.9 , 1.3 , 1.7 , 2.1 , _ , _ 。(2) 2.39 , 2.4 , 2.41 , 2.42 , _ , _ 。(3) 8.48 , 8.482 , 8.484 , 8.486 , _ , _ 。(3) 8.835 , 8.826 , 8.817 , 8.808 , _ , _ 。6.50.2 5.38.4 64.56 0.50.12 4.70.7 9.63.4 8.14.4 0.510.39 6.460.86 41.861.93 7.393.8 53.835.7
7、 9.182.15 54.251.12 5.70.3 41.496.45 6元6角9分4元3角1分 9t89kg209kg 8m73cm2m12cm 24kg9kg900g 10km400m5km50m 6km4km680m (1) 0.3 , 0.9 , 1.5 , 2.1 , _ , _ 。(2) 9.7 , 9.77 , 9.84 , 9.91 , _ , _ 。(3) 2.716 , 2.718 , 2.72 , 2.722 , _ , _ 。(3) 8.025 , 8.016 , 8.007 , 7.998 , _ , _ 。6.30.1 4.22.3 24.71 0.60.35 5
8、.40.5 8.94.2 6.33.8 0.520.2 7.270.21 69.449.9 8.296.01 73.533.1 7.866.01 97.742.24 2.80.35 66.396.38 8元3角9分1元3角8分 3t107kg605kg 8m84cm2m81cm 18kg2kg400g 10km500m1km20m 7km4km260m (1) 0.1 , 0.7 , 1.3 , 1.9 , _ , _ 。(2) 8.65 , 8.74 , 8.83 , 8.92 , _ , _ 。(3) 6.078 , 6.082 , 6.086 , 6.09 , _ , _ 。(3) 6.067 , 6.063 , 6.059 , 6.055 , _ , _ 。4.10.1 5.99 59.29 0.680.45 10.4 5.82.7 6.43.7 0.860.03 4.310.49 69.378.62 8.936.6 87.534.6 7.436.72 59.462.57 2.940.5 67.548.49 7元7角9分3元4角8分 8t25kg275kg 9m55cm4m15cm 26kg7kg100g 9km800m5km60m 10km3km40m (1) 0.1 , 0.4 , 0.7 , 1 , _ , _ 。(2) 3.08
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