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1、学习-好资料一、口算4.82.8=1.3+2.5=3.11+2.22=26.2+13.1=12.3+11.2=35.813.3=1.25+2.41=3.661.25=1.50.5=0.36+0.64=2.1+0.6=0.969.7=10.9=10.56=50,42=1.9+8.1=4.3+2.31=0.7+0.23=0.75+0.25=0.17+0.33=0.20.4=0.0110=0.0150=0.01100=0.011000=0.0910=0.09100=0.091000=53.810=53.8100=53.81000=1.41410=0.11000=36.910=3.14100=0.61
2、8100=18.110=9.8710=1.4100=0.011000=43.211000=0.30.2=43=40.3=0.40.3=133=0.132=0.130.2=3624=3.62.4=362.4=3.624=0.362.4=0.60.7=0.90.1=0.85=1.10.4=0.027=0.31.3=0.30.2=0.51.8=1.51.8=72=0.72=1.50.2=0.393=二、竖式计算45.233.5=0.70.2=3.84=7.24=3833.4=36=0.36=0.30.6=152=1.52=2.54=200.5=4.81.6=1.55=104.5=65=8.25+1.
3、55=7.32.25=102.45=3.7+2.36=10.28.75=15.4+2.97=5.94+10.7=11.657.39=103.14=11.7+40.3=3.152=87.23=3.8+3.54=3.052.9=8534.7=0.77.8=1.30.25=1.443.98=1.443.98=1.360.8=0.780.04=4.80.25=4.81.2=0.320.8=0.321.2=9.80.5=9.81.3=6540.9=2.421.1=3.141.5=2.60.8=2.152.1=2.160=0.1250=2.60.5=1.260=2.134=4.80.3=1.32.2=9.
4、60.8=3.251.8=4.81.3=更多精品文档4.80.9=9.341.4=0.79.32=1.872.3=0.150.63=1.80.85=学习-好资料480.15=0.861.2=0.1258=120.16=12.96=7.427=8.25=0.982.8=15.915=264=1216=325=5436=425=7.7995=43512=3556=1344=61016=18252=15.66=8.540.7=350.5=12.60.3=0.7681.6=8.40.56=37.10.53=2.77.5=0.782=4.060.58=0.70.25=320.08=6.210.3=0.2
5、10.025=6.30.42=0.0120.25=41.62.6=70.35=更多精品文档学习-好资料0.630.7=30.64.5=0.40.5=72.99=4.21.2=0.162.5=72.90.9=43=4.20.12=0.160.25=733=9.411=38=14.211=0.49=109=17=24=56=4.483.5=13.30.95=12.31.5=7.20.64=241.5=42.77=0.235=82.515=7.875=25.218=0.44832=21.612=2.881.52.881.5=46.2323=0.140.08=19.21.6=1.920.16=0.19
6、20.016=5.32.4=更多精品文档学习-好资料54.60.91=1.250.72=9.64.5=210.75=9.61.64=62.4+7.62=81.57=8.955=13.30.95=12.31.5=93.6=4.23.2=11736=1.85.5=（保留二位小数）8.096.7=6008.09=1.791.2=45.415=4.483.5=三、计算并验算12.60.28=8.841.7=62.917=2.10.56=90.36=4.23.2=11736=1.85.5=四、脱在计算更多精品文档学习-好资料9.43(8.65+0.40)4.6+12.3+5.815(1.3+3.9)4.
7、61.75+2.085(4.192.83)7.41(2.96+3.04)4.28+0.533.373.2+1.272.491.54+2.08+3.629.5+4.856.365.6+2.7+4.44.6(1.75+2.08)4.023.5+0.9870.81.251.7554.19+2.832.6+1.43(8+0.8)1.252.50.61.80.52.52.842.513+0.90.2513.70.41.83+3.79+0.17221.670.894.8+0.895.2100.340.6612.8+2.049.56.159.4424.53.6+5.20.354.50.9+5.50.935.
8、714305.4（2.74）9.40.96(5.40.9)526.5+260.371.6(2.25+10.51.5)90(3.61.8)3.47.83.90.36(6.14.6)0.854(3.94+6.86)0.1750.254(3.2+0.12)0.80.1750.250.428.77+4.5更多精品文档学习-好资料96(15.412.2)2.430.1890.3(86.5)7.8+4.56+2.212.7+12.550.499+0.43.642.50.656.40.655.45.011.9+4.99780.250.4五、解方程x19=2x12.3=3.84x=3803y=451.6x=3.3647+x=474x=426m=42y21=146y=54x7=12a18=261.2x=4824n=962x+20=803x+6=150.5x2=24x+3x=1802xx=44m2m=485y+y=96y+y=33更多精品文档x+3x=725x2x=123y+3y=36学习-好资料6x3x=4.83m+2m=653x+4=34x+5=552x+5=452x6=403x+20=504x+9=2493y6=48y+2y=45x360=3126xx=125m0.6=4.53x=3.6x18=402y+7=91x+2.5=105x3.9=5.18m2=15更多精品文档