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小数乘除法递等式计算题2.57.1416.129916.125.20.90.97.2899+7.284.3500.2642.640.52615.715.724(2.275 0.625)0.281.2(9.62.4)4.88.91.14.72.75.43.93.69.85-5.468.053.4+7.66.584.50.92.80.5+1.58324.90.94.84.80.5(1.250.125)84.8100.156.59956.57.0910.80.87.094.85+0.35 1.48.7 17.4-8.7 7.412.50.42.580.873.16+4.649.51010.68(5.2-3.5)1.2540.5 0.81 0.184.8(15 2.4)3.94+34.30.26.81+6.81990.25185404.40.83.40.82.376.3+2.373.72.51.250.323.810.12.5(3.80.04)7.691013.810.10.2539+0.250.12572460.33+540.33(85.27)1.256.81+6.81990.25185406.80.750.53.750.125 2.751.53+23.47.29.59913.50.98