四年级小数竖式计算和简算.doc

4.2681.7 575.79.462.8517.86.4 1.54.97.51+0.49= 5.48-3.25= 12.7+6.58=10-3.62-1.382.43-（0.28+1.43） 0.258.54 12.50.960.8 0.250.734 2.50.88 5.5555.22.223.337.65885 36.020.34.8+18.9=10.3+58.7= 12.03+0.8756.54-2.36-3.644.6+14.3+5.7 4.3612.58 0.2516.24 1.252.53256.78830.15.3 5.36.34.47.348.88.03-4.56=9.03-8.57= 37.8+3.02= 2.6+6.92+3.451.69-（11.69+10.15）3.20.2512.5 0.2536 (1.250.125)84.10.8 9.91.46.42.412.4849.81.38.25+1.55= 9.43-9.05= 7.81-3.735= 18.76-（5.76+2.9）3.6+6.62+6.44.810.1 3.6102 0.391994.89.10.674.21.88.66.5 5.555.21.75+2.08= 4.28-3.37= 0.704-0.25= 23.04-0.8-13.4-6.2 15.13+4.92-5.13 0.32403 3.6510.1 0.859.92.223.337.6588536.020.3 56.7885.62.94.13+2.24= 4.17+2.53= 10.1-0.55= 43.23-（13.23+10.75） 20.16-（10.16+3.8） 3.723.56.283.5 15.62.115.61.14.87.8780.523.771.80.0296 5.220.39.990.024.670.95.07-0.98= 5.67-0.73= 5.03-2.5+0.96 22.8-5.23-9.12556.59956.57.0910.80.87.09 1.879.90.18752.44 1.6666.19.4320.0025.66.54.882.913.18+5.27=5.16+7.89= 23.66+4.34-3.56 5.6-0.81-1.294.2994.23.84.563.835.449.7999.75.614.38.92.45.5559.770.021.3845.112.16+5.347= 0.4-0.125= 15.9+3.26+4.1767.2+41.5-71.3927.53.77.53.7 3.140.6831.40.032 7.20.22.41.48.78832.6610.0590.2 5.62.93.771.818.7+3.96=9.6+4.78= 10.75+0.4-9.473 16.23+8.92-7.567.74（2.81.3）1.52.26 3.92.73.97.312.79.91.270.0296 5.220.3 9.990.024.670.95.542.445.67-0.845= 0.506-0.19= 0.9+1.08+0.92+0.15.26+3.43+0.745.411-5.4 2.316+2.323+2.31.6666.1 9.4320.0025.66.54.882.95.612.111.04-7.3=1.4-0.405= 5.6+2.7+4.420.15+7.62+7.854.87.8780.52 56.59956.5 7.0910.80.87.098.92.4 9.770.02 1.3845.18.7883 2.66162.1-17.07=1.4-0.405= 51.27-8.66-1.34 48.14-2.43-7.571.879.90.187 4.2994.2 1.252.5320.0590.24.2681.7 575.7 9.462.8517.86.43.906+0.66= 43.5-27.34= 18.76-3.47-0.535.17-1.8-3.23.834.563.835.44 4.3612.58 9.7999.71.54.92.50.88 45.45-45=45-0.45=3.57+3=15.98-3.9=75.6-3.55=5.94+10.7= 70.8-1.25-1.754.02-3.5+0.984.25-0.83+0.75 27.53.77.53.70.651013.20.2512.550-28.5-13.4513.79-9.653+170.57 1.5+0.68-0.306 3.140.6831.40.032 7.20.22.41.4 8.91.017.74（2.81.3）1.52.26 0.250.734 3.6510.120.8-（15.98-3.9） 32.5+（5.07+6.13） 3.52-（4.66-3.82）3.92.73.97.3 12.79.91.27 5.411-5.4 2.316+2.323+2.3 7.60.80.27.6 0.859.93.98-1.5+6.02 4.8+1.2-4.8+1.2 30.99-（8.5+15.99）3.654.736.50.37 465723862.229.9+6.666.7 1010.87-0.91870.258.54 1.288.