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1、简便计算题:1)6.9 4.8 3.10.456 6.22 3.7815.89(6.755.89)2)4.02 5.4 0.985.17 1.8 3.213.75(3.756.48)3)3.68 7.56 2.687.85 2.34 0.85 4.6635.61.815.67.24)3.82 2.9 0.18 9.19.6 4.8 3.67.140.532.475)5.27 2.86 0.66 1.6313.35 4.68 2.6573.81.6413.85.366)47.87.45+8.80.398+0.36+3.6415.75+3.590.59+14.257)66.86 8.66 1.34
2、0.25 16.2 4(1.250.125)88)3.61023.723.56.283.536.83.96.19)28.6 101 28.64.8 7.8 78 0.52324.90.910)4.8 100.156.5 9.9 56.57.0910.80.87.0911)25.48(9.40.52)4.23.53201.25812)18.769.918.763.522.50.43.94.16.15.913)5.63.59.60.80.44.2994.214)17.8(1.784)0.491.41.252.53215)15.20.2540.89100.1146.5(2346.5)16)3.834
3、.563.835.444.3612.589.7999.717)27.53.77.53.78.542.50.40.6510118)(45.932.7)80.1253.140.6831.40.0325.61.250.82.50.419)7.20.22.41.48.91.017.74(2.81.3)1.52.2620)3.92.73.97.3181.80.1250.812.79.91.2721)21(9.33.7)5.615.02-6.8-1.025.411-5.422)2.316+2.323+2.39.43-(6.28-1.57)3.654.736.50.3723)4657238613.70.25
4、3.742.229.9+6.666.724)1010.87-0.918710.716.1-15.110.70.7919925)4.8+8.63+5.2+0.375.93+0.19+2.811.76+0.195+3.2426)2.35+1.713+0.287+7.651.57+0.245+7.436.02+3.6+1.9827)0.134+2.66+0.8661.27+3.9+0.73+16.17.54.96.528)3.070.381.621.293.72.716.382.451.5529)3.251.790.591.7523.40.813.47.20.3240330)3.20.364.81.641.233.40.236.60.253631)12.7(3.70.84)36.541.764.540.250.73432)7.60.80.27.60.851990.258.5433)1.288.60.728.612.50.960.810.49.60.3534)0.8(4.31.25)3.123.1299