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1、,計算題,期末專題復(fù)習(xí),直接寫結(jié)果：,34.20.64= 80.35.21= 0.630.06= 1.10.08= 1.620.5= 2.0230.8= 6.80.15= 8.235.1= 7.80.23= 0.0251.4= 2.357.59= 0.250.046= 1.170.28= 1.082.5= 2.720.28= 2.523.4= 5.61.01= 0.1250.8= 0.181.5= 3.063.6=,21.888,418.363,0.0378,0.088,32.8,62.216,1.02,41.973,1.794,0.035,17.8365,0.0115,0.3276,2.7,

2、0.7616,8.568,5.656,0.1,0.27,11.016,直接寫結(jié)果：,6.726.4= 0.90.01= 93.60.052= 72.80.8= 51.30.27= 5.50.55= 2.6880.56= 0.7560.36= 25.60.032= 0.3961.2= 2.77.5= 0.90.15= 10.6250.25= 6.60.66= 64.321.6= 4.23.5= 2.870.7= 40.8= 8.80.22= 2.20.11=,1.05,90,1800,91,190,10,4.8,2.1,800,0.33,0.36,6,42.5,44,40.2,1.2,4.1,5

3、,40,20,脫式計算：,（1）2.50.70.8 （2） 51.30.27+10.1 （3）2.132.13 （4）0.27（0.3+0.2）0.6 （5）1.20.50.4 （6） 62.82.50.4 （7）0.68（5.23.5）1.25 （8） 8.54+1.50.25 （9）40.50.810.18 （10） （102.154.6）8.5,1.4,200.1,9,0.9,0.2,62.8,0.5,2.5,9,0.935,簡便計算：,1、2.5X7.1X4 2、4.8X100.1,=（2.54）7.1 =107.1 =71,=4.8（100+0.1） =4.8100+4.80.1 =

4、480+0.48 =480.48,3、16.1299+16.12 4、2.5（3.80.04）,=16.12（99+1） =16.12100 =1612,=（2.50.04）3.8 =0.13.8 =0.38,5. 9.599 6.（9.37+9.37+9.37+9.37）2.5,=9.5（1001） =9.51009.51 =9509.5 =940.5,=9.3742.5 =9.37（42.5） =9.3710 =93.7,7、72.89.9+7.28 8、（1.250.125）8,=7.2899+7.28 =7.28（99+1） =7.28100 =728,=1.2580.1258 =101 =9,9、0.250.320.125 10、3.61.9+0.3681,=（0.254）（0.1250.08） =10.01 =0.01,=,=0.3619+0.3681 =0.36（19+81） =0.36100 =36,