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1、- 1 - / 2 五年级上册数学小数简便运算练习题 简算 0.2544.78 0.65201 4.80.25 2.330.5 4 1.5 105 1.22.5+0.8 2.5 0.0340.6 1020.45 0.5 1.252811 3.22.5 1042.5 1.25（4-0.8 ） 100.199+100.1 630.1 48510.2-48.5 2.6999 2.5 3212.5 1.58-99 273-27-73 284-68-84 487-187-139-61 1034+78+320+102 308+176+92 1253225 2512 12572 3200425 1732-1
2、722 9817+217 （200+4）25 210014 10312 2501250 25184 17.8(1.78 4) 0.491.4 1.252.532 66.868.66 1.34 0.2516.24(1.25 0.125) 8 3.61023.723.56.283.536.8 3.9 6.1 15.613.115.6 5.62.14.87.8780.52324.9 0.9 4.8100.156.59.956.5 7.0910.80.87.09 25.48(9.4 0.52) 4.23.53201.258 18.769.918.76 3.522.50.43.9 4.16.1 5.9
3、17.8(1.78 4)9.60.80.44.2994.2 15.20.2540.89100.1146.5 (2346.5) 3.834.563.835.444.3612.589.7999.7 27.53.77.53.78.542.50.40.65101 (45.9 32.7) 80.1 25 3.140.6831.40.0325.61.250.82.50.4 7.20.22.41.48.91.017.74 （2.8 1.3 ） 1.5 2.26 3.92.73.97.31.252.53212.79.91.27 - 2 - / 2 21（9.3 3.7 ）5.6 15.02-6.8-1.02
4、5.411-5.4 2.316+2.323+2.39.43- （6.28-1.57 ）3.654.736.50.37 4657238613.70.253.742.229.9+6.66 6.7 1010.87 - 0.918710.716.1 - 15.110.70.79199 3.2 0.364.8 1.64 1.23 3.4 0.23 6.6 0.2536 12.7（3.7 0.84 ）36.541.76 4.54 0.250.734 7.60.80.27.60.851990.258.54 1.288.60.728. 6 12.50.960.810.4 9.60.35 0.8（4.31.25）3.12 3.129928.610128.6 0.8615.70.8614.72.41022.311.20.5
