2.139^9.3X6.24.2642(0.16X20.5)2.6X1.9三2.6五年级上学期递等式计算练习姓名：递等式计算，有简便运算的用简便方法38.75—5X0.3X0.25.2X6—106.8—0.8X49.8－0.6＋3.20.6X0.5X1.138.25＋2.4X0.512.8—4.8X0.2520X1.95—1.87.5＋2.5X5.2102X0.454.3X0.25X0.450.8X101—50.87.8X0.36—0.64X7.88X0.9X1.250.4X(2.5＋25)2.4＋7.6X3.414.25X14.6—4.25X14.681X1.01+61.5X101+6512.6X7.5+8.313.6X0.85—3.6X0.852.88^0.12X7.58.5—21.28三7.66.8三(0.25X6.8)6.75F0.25F0.424.5＋8.75)X120.4X2.32X0.2570.3—17.48三7.63.64三5.2X23.321.8^0.8—1.2X50.25X1.25X320.13X3.89＋0.13X6.11102X8.5+360.75X101+694.2—3.2X0.97.56X99＋7.5645^(5.25^0.25)16.5X101—16.50.96^0.3X141.25X4X2.5X836.45三(0.82+3.4X0.2)9.07—2.64^0.4(2.65+2.77)三(2.98-0.98)3.7x91.6+6.3x91.60.45x12x0.2三96.2x2.1-2.1x2.8-2.8x0.152.8x1.43+0.57x2.810-6.06+8.5x0.2104X8.5-2086.4^6.4-0.40.25X6.2X0.423X6.5+17X6.536^0.4X0.25(24.6-18.1)X3.47.6X9.9+7.6X0.113.6X0.8X12.523.9X8.5-3.9X8.5(2.55+9.6三16)三0.429.2三0.25三46x0.25x1.8x514423.6+27.2x0.50.87x3.16+4.64x0.876.8x0.7520.5x413.7520.125-2.7553+23.427.820.62.88120.43-0.24x3.528-(3.4+1.25x2.4)(31.8+3.2x4)2531.5x42(5.36+3.64)0.64x25x7.8+2.2222.5+2.522194-64.821.8x0.936.7224.25x9.95180-705x62422.4-2.5x0.83.4162(0.016x35)5.12+2.54+4.88+7.4612.5x17.25x0.4x0.89.9x2.5+201x3.459.4x5.8+10.6x5.80.125x0.32x0.259.6x0.01+9.6x0.992.8x7.6+1.4x2.8+2.86.3x10.1+7.3x0.990.25x64x12.53.7x91.6+6.3x91.616.8424020.2512.5x0.4x2.5x0.89.5x101+85x9.94.2x7.8+22x0.422.55x7.1+24.5x0.710.7744F(0.16x5.5)21.4F2.14-20.5x0.1680.08-7.05x6.218.36F8.5x19.9194-64.821.8x0.90.3F(1.25x0.32x7.5)3.78x5F(1.26x5)(1.2+13.2x4)F10822F(13.4-11.25x0.8)(27.8-15.6)x0.8x0.53.26x10.1-0.1x3.269.12F57+4.84-3.7742.72F0.48+0.522.33x0.25x1.5x40.21-M.4+2.67.06x2.4-5.7
