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1、一、用竖式计算0.3961.2=0.7560.36=15.613=3.0636=1.553.90.1815=7.152213.760.8=35.44.20.02514=90.753.35.20.60.0420.54（保留一位小数）5.7630.040.123.842.63.680.2516.90.133.70.0168.41.36.40.54.480.45.2550.760.325.63.50.491.41 / 74.80.250.1251.4（保留两位小数）2.50.7=（保留三位小数）10.13.3=（商用循环小数）10.7512.5=（用乘法验算）3.259.04=（用除法验算）二、脱式
2、计算（能简算的要简算）18.769.918.763.522.50.40.89100.19.60.80.43.6510.117.8(1.784)3.20.2512.515.20.2543.834.563.835.444.3612.580.6510127.53.77.53.72 / 73.94.16.15.94.2994.21.252.532146.5(2346.5)9.7999.78.542.50.41.08252.523.4(45.932.7)80.1253.140.6831.40.0325.61.250.82.50.47.20.22.41.48.91.0181.80.1250.815.02-
3、6.8-1.029.43-（6.28-1.57）13.70.253.7410.716.1-15.110.74.8+8.63+5.2+0.377.74（2.81.3）1.52.212.79.91.275.411-5.43.654.736.50.372.229.9+6.666.70.791995.93+0.19+2.813 / 73.92.73.97.321（9.33.7）5.62.316+2.323+2.3465723861010.87-0.91871.76+0.195+3.242.35+1.713+0.287+7.651.57+0.245+7.436.02+3.6+1.987.54.96.58
4、2.451.50.134+2.66+0.8661.27+3.9+0.73+16.11.293.72.716.323.40.813.47.20.253636.541.764.547.60.80.27.60.324033.070.381.623.20.364.81.642.41020.250.7350.851998.60.728.64 / 73.251.790.591.751.233.40.236.612.7（3.70.84）70280.258.5412.50.960.81.2810.49.60.54.91.40.8（4.31.25）2.52.40.8615.70.8614.728.610128.
5、32.311.20.5147.322.6815（0.150.4）3.63.60.532.40.90.132.42.57.1463.42.50.42.648.677.3611.33（2.50.25）0.4150.25（7.71.54）0.716.129916.125 / 73.9（1.35）2.7459.161.50.59.160.351.2520.80.250.0465.20.90.90.120.50.167.2899+7.284.3500.2642.640.59.5992615.715.724(2.275 0.625)0.281.2(9.62.4)4.812.58.88.91.14.72.7
6、5.43.93.69.85-5.463.94+34.30.28.053.4+7.66.584.50.92.80.5+1.58(1.250.125)84.8100.156.59956.57.0910.80.87.094.84.80.54.85 + 0.35 1.48.7 17.4 - 8.7 7.4324.90.99.51016 / 712.50.42.580.873.16+4.640.68 （5.2 -3.5） 1.2540.5 0.81 0.184.8 （15 2.4）213.0.82573.810.14.40.83.40.842.1.1.1.752.51.250.320.2539+0.251.53+23.47.20.25185406.81+6.81997.691010.125722.5(3.80.04)460.33+540.33(85.27) 1.253.750.125 2.757 / 70.2518540(9.37+9 37+9 37+9 37) 2 52.376.3+2.373.713.50.986.80.750.56.81+6.81993.123.1299
