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1、1 185.44 16 41.84 7 21.7 9 67.5 105 230.4 0.6 121.24 36 0.736 23 43.5 12 35.21 7 39.6 24 6.21 0.03 210 1.4 51.3 0.27 91.2 3.8 0.756 0.18 0.66 0.3 11.97 1.5 69.6 2.9 38.4 0.8 15 0.06 15.6 2.9 3.77 1.8 0.02 96 5.22 0.3 9.99 0.02 4.67 0.9 5 2.44 1.666 6.1 9.432 0.002 5.6 6.5 4.88 2.9 0.61 4.3 8.9 2.4 5
2、.5 55 9.77 0.02 1.384 5.1 8.78 83 12.6 61 0.059 0.2 4.268 1.7 5.7 5.7 9.46 2.85 17.8 6.4 1.5 4.9 12.5 0.88 5.555 5.2 2.22 3.33 7.658 85 36.02 0.3 56.78 8 (循环小数的用简便方法,除不尽保留2 位小数):8.2 0.12 0.8 0.9 76.4 5.4 4.7 3 1.25 1.2 32 42 14.36 2.7 8.33 6.2 1.7 0.03 2.41 0.7 0.396 1.2= 0.756 0.36= 15.6 1.3= 0.18
3、1.5= 0.025 1.4= 13.06 36= 0.04 0.12 3.84 2.6 5.76 317.15 22 90.75 3.3 3.68 0.25 16.9 0.13 1.55 3.9 3.7 0.016 13.76 0.8= 5.2 0.6 18.4 1.3 6.4 0.5 4.48 0.4 15.25 5 35.4 4.2 0.042 0.54 0.76 0.32 0.25 0.046 2.52 3.4 1.08 25 0.12 0.5 0.164.8 0.250.125 1.4 (保留两位小数)2.5 0.7= (保留三位小数)10.1 3.3= (商用循环小数)10.75
4、12.5= (用乘法验算)3.25 9.04= (用除法验算)3 能简算的要简算2.5 7.1 4 16.12 9916.12 5.2 0.90.9 7.28 99+7.28 4.3 50 0.2 642.64 0.5 26 15.715.7 24 (2.275 0.625) 0.28 3.94+34.3 0.2 1.2 (9.6 2.4) 4.8 8.9 1.1 4.7 2.7 5.4 3.9 3.6 9.85-5.46 8.05 3.4+7.6 6.58 4.5 0.9 2.8 0.5+1.58 324.90.9 4.84.8 0.5 (1.250.125) 8 4.8 100.1 56.
5、5 9956.5 7.09 10.80.8 7.09 4.85 + 0.35 1.4 8.7 17.4 - 8.7 7.4 12.5 0.4 2.5 8 0.87 3.16+4.64 9.5 101 0.68 (5.2 -3.5 ) 1.25 40.5 0.81 0.18 4.8 (15 2.4)6.81+6.81 99 0.25 185 40 4.4 0.83.4 0.8 (9.37+9 37+937+937) 25 2.37 6.3+2.37 3.7 2.5 1.25 0.32 3.8 10.1 2.5 (3.8 0.04) 7.69 101 3.8 10.1 0.25 39+0.25 0
6、.125 72 46 0.33+54 0.33 (8 5.27) 1.25 6.81+6.81 99 0.25 185 40 6.8 0.75 0.5 3.75 0.125 2.75 1.53+23.4 7.2 9.5 99 13.5 0.98 12.5 8.8 名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 1 页,共 4 页 - - - - - - - - - 2 3.8 0.12= 0.570.6= 6.40.5= 6.75.8= 9.8 3.8= 7.8 6.4= 4.62.
7、7= 4.52.7= 51.6= 30.6= 31.2= 6.77.6= 5.47.8= 2.63.6= 3.51.7= 8.32.6= 1.40.7= 4.5 2.8= 7.42.6= 6.21.4= 5.4 2.6= 2.31.4= 3.71.8= 5.21.6=3.6 0.8= 0.66 1.4= 6.55.8= 0.720.49= 0.42 0.28= 0.240.19= 2.4 1.3= 4.52.3= 0.72 0.27= 0.780.32= 0.650.04= 0.230.16= 0.29 0.15= 0.16 0.19= 41.2= 74.6= 60.37= 0.28 0.27
8、= 0.750.42= 2.31.9= 80.64= 2.70.8= 104.2= 7.13.9= 4.3 1.4= 2.6 1.6= 0.80.3= 0.650.4= 0.91 0.6= 1.81.6= 4.8 0.5= 3.20.4= 9.8 4.8= 128.3= 15.26.5= 20.111.1= 13.34 10.32= 6.52 0.48= 6.35.1= 8.73.6= 14.34.3= 1.5 0.54= 104.2= 2.473.24= 2.98 0.56= 5.641.78= 8.020.98= 7.13.9= 2.8 11.39= 12.534.67= 7.26.45=
9、 1.653.35= 7.961.45= 601.27= 6.074.89= 50.41= 0.9 0.5= 20.7= 1.24.3= 5.4 2.7= 62.9= 3.71.7= 4.20.8= 7.5名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 2 页,共 4 页 - - - - - - - - - 3 2.5= 2.24.3= 9.57.1= 3.51.6= 5.2 2.8= 7.81.6= 9.64.1= 104.2= 5.1 2.5= 4.1 3.4= 1.23.8=
10、9.64.1= 7.81.6= 3.51.6= 4.41.4= 2.92.1= 3.5 1.2= 4.83.4= 6.92.5= 2.57.8= 8 5.4= 6.9 2.5= 23.5= 6.82.2= 4.75.4= 4.18.8= 2.2 5.5= 9.62.1= 1.7 3.8= 7.43.6= 0.80.23= 1.62.4= 4.7 3.5= 1.2 3.6= 1.53.8= 2.81.2= 7.32.7= 7.32.7= 6.23.7= 4.23.9= 0.54 0.65= 7.55.2= 0.70.5= 0.320.47= 8.3 6.3= 7.2 0.42= 0.480.52
11、= 0.80.25= 43.50.65= 0.320.16= 0.350.55= 0.870.8= 0.24 0.08= 0.920.37= 1.40.6= 3.64.2= 0.720.48= 6.83.2= 7.13.4= 0.420.66= 0.32 0.68= 2.8 7.2= 0.650.19= 3.091.2= 3.25 5.64= 0.250.47= 0.820.18= 7.82.4= 0.450.18= 0.40.16= 8.21.8= 0.730.27= 8 3.2= 9.8 4.8= 32.4= 2.80.9= 1.29 0.18= 5.10.8= 100.3= 8.9 4.
12、9= 6.80.7= 80.72= 6.63.4= 6.4 1.3= 1.2 0.8= 7.36.2= 8.73.6= 12.3 0.7= 0.89.2= 4.7 1.9= 5.13.9= 1.40.6= 3.86.4= 0.6名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 3 页,共 4 页 - - - - - - - - - 4 7.45= 4.90.1= 4.53.2= 1.80.9= 6.50.5= 10.5 6.5= 7.5 0.5= 0.780.28= 12.82.8=
13、9.62.3= 3.80.12= 0.80.08= 107.4= 7.53.2= 0.42 0.58= 0.8 0.15= 2.50.4= 8.22.6= 1.4 0.7= 2.54.6= 0.59.8= 6.72.6= 7.25.9= 8.73.6= 5.692.48= 2.94.1= 9.16.7= 2.03 1.2= 8.64.9= 1.32.03= 9.46 7.21= 1.562.24= 3.51.25= 0.750.4= 200.78= 4.84.2= 5.73= 4.9 1.7= 1.340.8= 20.75= 8.70.03= 0.20.09= 8.5 2.5= 3.41.4= 0.680.42= 7.82 7.2= 29.1= 0.480.52= 8.1 5.1= 0.780.24= 0.80.18= 0.89 0.25= 10.98= 0.90.1= 10.8= 4.54= 5.64= 5.7 3.3= 104.4= 66.6= 9.5 2.7= 10.55= 3.74.8=名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 4 页,共 4 页 - - - - - - - - -