1、(15)32.525(16)12.60.28= (17)8.841.7= (18)29.90.46= (19)10.0532 (保留一位小数)(20)210187 (保留一位小数)(21)4.0352.4 (保留一位小数)(22)16.24.5 (23)11.051.3 (24)6.722.8(25)0.720.18 (26)2.551.5 (27)26.880.12(28)57.421 (29)2.181.7 (30)0.6927.6(31)41.62.6= (32)0.162.5= (33)0.7020.9=(34)45.934= (35)68.49.12= (36)7.410.13=(3
2、7)8.3688.4 (保留两位小数)(38)25426 (保留两位小数)(39)0.14251.5 (保留两位小数)(40)723.6 (41)0.0070.035 (42)7.920.6(43)35.720.47=(44)48.652.5=(45)52.7462(46)14.180.26(47)6.4(48)113.249 (保留两位小数)(49)0.2460.17 (保留两位小数)(50)60.16=(51)44.80.32=(52)16.883.2 (53)2.88753.85 (54)19.890.45(55)54.73 (保留两位小数)(56)8.21.2 (保留两位小数)(57)
3、68.40.38=(58)540.36=(59)876.428; (60)114.4535;(61)4.082.72(62)13.42.7 (保留两位小数)(63)0.783.6 (保留两位小数)(64)0.8(65)0.750.25 (66)1.8553.5 (67)25.30.88(68)8.841.7 (69)68.47.2 (70)76.5(71)2.50.7 (保留三位小数)(72)10.13.3 (商用循环小数表示)(73)10.05(74)210(75)4.035(76)6.48.4 (保留两位小数)(77)113.249 (保留两位小数)(78)0.246(79)0.030.0
4、7; (精确到百分位)(80)5.636.1 (精确到百分位)(81)12.421.15= (82)8.4521.8 (保留两位小数)(83)2.421.8= (用循环小数表示)(84)3423.8=(85)10.111=(86)0.8753.5 (87)1.5360.48(88)0.5630.2 (89)11.4321 (保留两位小数)(90)48.4 (精确到百分位)(91)113.249 (精确到百分位)(92)0.2460.17 (精确到百分位)(93)3.851.69 (精确到百分位)(94)42.10.37 (精确到百分位)(95)4.678.39 (精确到百分位)(96)15.7
5、2.43 (精确到百分位)参考答案:(1)3.8170.54, 0.544(2)50133.85 3.846(3)110.4547=2.35, 2.35(4)75.4515=5.03, 5.03(5)0.7561.05=0.72,(6)17.422=0.7 0.790(7)246.41319.0, 18.95(8)1.553.80.41(9)6.377=0.91;验算:;4=7.15;1.913.263;0.0940.7788=1.74;9=1.8;25=1.3;0.28=451.7=5.20.46=65320.31871.12.41.74.5=3.61.3=8.52.8=2.40.18=41
6、.5=1.70.12=224212.7;1.71.3;27.60.032.6=1.6;2.5=0.064;0.9=0.7834=1.359.12=7.50.13=578.41.00;269.77;1.50.10(40)723.6=20;0.035=0.2;0.6=13.20.47=762.5=19.46620.850.2654.548.40.76492.310.171.450.16=37.50.32=1403.2=5.275;3.85=0.750.45=44.2318.23;1.26.83;0.38=180;0.36=15028=31.3;35=3.27;2.72=1.52.74.96;3.60.22;1.50.530.25=3;3.5=0.53;0.88=28.75;1.7=5.2;7.2=9.5;0.45=1700.7=3.71423.571;3.3=3.3.061320.3;1871.1;2.41.7;8.40.76;492.31;0.171.447;0.070.436.10.921.15=10.81.84.701.8=1.33.8=9011=0.93.5=0.250.48=3.230.2=16.912210.548.40.480.171.451.692.280.37113.788.390.562.436.46
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