简便计算题：1）6.9＋4.8＋3.10.456＋6.22＋3.7815.89＋(6.75－5.89)2）4.02＋5.4＋0.985.17－1.8－3.213.75－(3.75—6.48)3）3.68＋7.56－2.687.85＋2.34－0.85＋4.6635.6－1.8－15.6－7.24）3.82＋2.9＋0.18＋9.19.6＋4.8－3.67.14－0.53－2.475）5.27＋2.86－0.66＋1.6313.35－4.68＋2.6573.8－1.64－13.8－5.366）47.8－7.45+8.80.398+0.36+3.6415.75+3.59－0.59+14.257）66.86－8.66－1.340.25×16.2×4(1.25－0.125)×88）3.6×1023.72×3.5＋6.28×3.536.8－3.9－6.19）28.6×101－28.64.8×7.8＋78×0.5232＋4.9－0.910）4.8×100.156.5×9.9＋56.57.09×10.8－0.8×7.0911）25.48－(9.4－0.52)4.2÷3.5320÷1.25÷812）18.76×9.9＋18.763.52÷2.5÷0.43.9－4.1＋6.1－5.913）5.6÷3.59.6÷0.8÷0.44.2×99＋4.214）17.8÷(1.78×4)0.49÷1.41.25×2.5×3215）15.2÷0.25÷40.89×100.1146.5－(23＋46.5)16）3.83×4.56＋3.83×5.444.36×12.5×89.7×99＋9.717）27.5×3.7－7.5×3.78.54÷2.5÷0.40.65×101(45.9－32.7)÷8÷0.1253.14×0.68＋31.4×0.0325.6÷1.25÷0.8÷2.5÷0.419）7.2×0.2＋2.4×1.48.9×1.017.74×（2.8－1.3）＋1.5×2.2620）3.9×2.7＋3.9×7.318－1.8÷0.125÷0.812.7×9.9＋1.271/621）21×（9.3－3.7）－5.615.02-6.8-1.025.4×11-5.422）2.3×16+2.3×23+2.39.43-（6.28-1.57）3.65×4.7－36.5×0.3723）46×57＋23×8613.7×0.25－3.7÷42.22×9.9+6.66×6.724）101×0.87-0.91×8710.7×16.1-15.1×10.70.79×19925）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+16.17.5＋4.9－6.528）3.07－0.38－1.621.29＋3.7＋2.71＋6.38－2.45－1.5529）3.25＋1.79－0.59＋1.7523.4－0.8－13.4－7.20.32×40330）3.2＋0.36＋4.8＋1.641.23＋3.4－0.23＋6.60.25×3631）12.7－（3.7＋0.84）36.54－1.76－4.540.25×0.73×42/632）7.6×0.8＋0.2×7.60.85×1990.25×8.5×433）1.28×8.6＋0.72×8.612.5×0.96×0.810.4－9.6×0.3534）0.8×（4.3×1.25）3.12＋3.12×998.7×10.17.06×2.4－5.76.35÷0.8÷1.252.5×6.8×0.42.5×3.2×1.2521.36÷0.8×2.9102×0.458.27＋7.52＋1.73－3.520.79×99＋0.790.15＋0.75×1872＋8÷2.5－30.22.8×3.2＋3.2×7.25.65×1.8+4.35×1.82.5×1.25×3.263×10.19.76×0.72－0.76×0.72+0.7212.6×9990÷25÷423.4÷7.8－2.35.4+4.6×150.84÷7+0.36×83/628.3×0.1×2.758.36×0.5＋18.21.01×8.50.79×98＋0.79×20.48×1.250.25×5.8×0.44