1、脱式计算 1（能简算的要简算） 姓名: 2.57.14 16.129916.12 5.20.90.9 2615.715.7247.2899+7.28 4.3500.2 642.640.5 (2.275 0.625)0.28 3.94+34.30.2 2.75.43.9 1.2(9.62.4)4.8 8.053.4+7.6 8.91.14.7 6.584.50.9 3.69.85-5.46 2.80.5+1.58324.90.9 (1.250.125)8 56.59956.5 4.84.80.5 4.8100.1 7.0910.80.87.09 4.85 + 0.35 1.4 9.5101 12
2、.50.42.58 0.873.16+4.64 0.68 （5.2 -3.5） 1.25 8.7 17.4 - 8.7 7.4 脱式计算 2（能简算的要简算） 姓名: 40.5 0.81 0.18 4.8 （15 2.4） 2.13.0.8257 6.81+6.8199 0.2518540 4.40.83.40.8 (9.37+9.37+9.37+9.37) 25 42.1.254.21.752.376.3+2.373.7 2.51.250.32 3.810.1 2.5(3.80.04)0.2539+0.25 0.12572 460.33+540.33 7.69101(85.27) 1.25 6.81+6.8199 0.2518540 3.810.16.80.750.5 3.750.1252.75 1.53+23.47.2 9.599 13.50.98 12.58.8
