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1、 小学数学五年级上册简便计算练习 1一、请用简便方法计算下列各题0.250.280.1253.22.53540.20.2540.2543.59.93.599+3.53.5101-3.53.59.9+3.50.13.52.7+350.733.52.7-3.50.7(32+5.6)0.83.50.6-0.50.64.93.570.25470.125 8 一、计算下面各题，怎样算简便就怎样算。姓名28.30.12.758.360.518.21.018.50.79980.79 20.481.250.255.80.4二、解方程 12x-8x=4.81.2x=81.6(200-x)5=30x-0.7x=3
2、.65.6x=33.63.5-5x=2x+3x+10=705x+x=99.8-x=3.8 5x-45=1004.5x-x=2875.6x=12.6(x-140)70=4x+2x+18=78(27.5-3.5)x=40.5x+8=433200=450+5X+X45x=209 1x 1.36-2x=111.5(x+1.6)=3.6155X-2X=187(6.5+x)=87.59x-x=16 一、直接写出得数。（10 分）1.54= 5.81.2=姓名：_4.088=450.2=0.540.6= 3.12.9=0.321000= 7100=3.680.01= 91.5=0.123= 0.40.7=0.80.02= 0.840.3=0.40.5= 0.440.6=2.50.4=0.1258= 3.60.4= 3.927.2=二、竖式计算。（1）7.60.9（2）10.50. 3（3）4.250.18(4) 0.30.12(5)104.7826(6) 34.20.8三、递等式计算，能简算的要简算。8.710.1 7.062.45.76.350.81.25