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1、 0.80.6=1.2580=5.243.76=6250.8=4.23.6=0.3216=130.26=9.616=14.50.24=48=1.38.46=0.80.45=52.4=10.01=8.13=2.412=2500.4=20.52.05=37.5400=0.782.2=1.58=61.5=250.4=9.616=40.04=4.150.85=100.1=0.137=9.64=0.168=0.825= 04.23=0.57+0.43=2.40.2=0.02500= 2.89+9.17=2.810= 8.29100=2.50.4=4.87-1.7=8.071000= 25.63=0.32
2、88= 3.513= 7.217=2325= 3.6414 = 1.060.82=7.828= 60050= 20.16=840.25= 0.360.9= 0.060.75=2.43= 200.5= 0.86=10000.09= 1.3527= 0.412.01=580.32= 1.0852= 0.630.12=8.50.54= 5.622.4= 0.280.16=二、列竖式计算1.642.35=8.656.31=28.44814=0.58250=12.53.6=10.8834=107.64=1.867=13.886.29=9260.15=8500=26.37.93=13.68.46=100.
3、22.28=449精确到百分位 237.06=三、计算（能简便的用简便方法计算）82512516 4042504555（6821555）329932483961483452178712232556+4565489109489457+317+343+583（8540）（205）5784054516465648464645x450 12（6x）421.26+4x12（4）8.5xx22.5用简便方法计算。0.253.212.53610.10.2544 22.24+17.843.86.7+3.33.81.280.29-0.290.28用递等式计算。2.6+1.41.51.5（373.64.8）12.
4、52.6+2.4（1.41.05） 15.616（0.25+1.25）30.814-(9.85+1.07)60-(9.5+28.9)0.182.8810.43-0.243.5 20(2.44-1.8)0.4+0.1528-(3.4+1.252.4)2.557.1+2.457.17779+111130.815.5-(3.21+5.79)(31.8+3.24)531.54(6+3)0.64257.8+2.222.5+2.5246912+1492 19.46.15.670.2-0.6218.10.92+3.930.40.70.250.78+5.436+14.854+149x56+56 34x89-1331x56-56 16.59x18-14x2736.178-14556+427.20.8-1.256.5（4.8-1.24）28-(3.4+1.252.4)
