6.70.3 2.46.2 0.560.04 3.74.6 0.290.07 6.58.4 3.22.5 2.61.08 0.867 3.51612.542 1.823 0.370.4 1.0625 70.860.60.39 270.43 0.04945 0.80.9 1.70.4525.26 34.515 7.839 4.088 0.5466.314 7215 14.217 1.812 22.442415 1.2618 43.529 18.927 1.351528.611 20.424 3.6452 15.612 328165.046 76.545 0.8428 7.650.85 12.60.2862.42.6 0.5440.16 1.441.8 11.72.6 19.4125.980.23 19.765.2 10.84.5 211.4 8.841.76.210.03 180.24 182.4 1.80.24 13.53013.50.3 13.50.03 2818 78.611 400751516 1.57 5.79 58 6.643.39.46 38.22.7 12.411 3.72.2 220.532.50.4 251.5 1.890.54 7.12.5 0.510.2232.52.5 1.360.05 0.061.7 2.0875 492.62.30.46 1.93+2.7 2.731.5 28.515 8.3-2.63脱式计算720.81+10.4 7.062.4-5.7 50.41.9-1.8 3.760.25+25.80.75180.15 2.070.230.45 21.360.8-12.9 7.28+3.22.51.080.80.27 2.050.82+33.6 44.280.94.1 9.07-22.783.45.517.3+6.75.5 3.8+4.29+2.1+4.2解方程x+3.2=4.6 x-1.8=4 x-2=15 1.6x=6.4 x7=0.3 x3=2.1 x+0.64=14.14 x+0.3=1.8 5x=1.5 2x-20=43+x=5.4 x-1.5=4 x-6=7.6 x1.1=3 x5=15 0.2x=6 3x+6=18 2x-7.5=8.5 16+8x=40 4x-39=29 2x+2.82=10.4 x+2.4x=5.1 2（x-2.6）=8 5（x+1.5）=17.5 x+4.8=7.28（x-6.2）=41.6 （x-3）2=7.5 13.2x+9x=33.3 8x-3x=105 x-6.5=3.2X8=0.4 6x+18=48 3（x+2.1）=10.5 12x-9x=8.7 x-0.36=16 5.4x+x=12.8 3.8+x=6.3 x-7.9=2.6 2.5x=14 x3=1.23.4x-48=26.8 2x-97=34.2 42x+25x=134 13（x+5）=169 2（x-3）=5.85x+7=42 x4.2=2 3.6x-x=3.25 简算0.2544.78 0.65201 4.80.25 2.330.541.5105 1.22.5+0.82.5 0.0340.6 1020.450.51.252811 3.22.5 1042.5 1.25（4-0.8）1