北师大版四年级下册计算题集锦.doc

四年级下册计算题集锦一、直接写出得数。7.5+3.08 = 32.99 = 31.5 = 6.53.8 = 2.70.27 = 4.20.06 = 6.30.4 = 4.824 = 0.6730 = 1.258 = 0.010.0010.1 = 3.61.2= 0.720.9= 2.613= 4.80.4= 4.44= 0.786= 7.20.4 = 10.25= 1.62= 45= 6.30.3= 80.5= 0.750.3= 0.474.7= 3.21.6= 08.6=0.427 = 25 = 10.2 = 78 = 8.42.1 = 0.691 = 1.260.6 = 0.50.2 = 0.91001000 = 12.4（2.43.25）= 0.010.0010.1 =0.50.10.50.1 = 0.50.10.50.1 = 0.91001000 =42.47.6 = 1.582.42 = 23.576.50.25 = 7.85.6 = 1.254 = 34.60.24 = 0.240.3 = 7.80.5 = 10.210.2 = 575.7 = 8.10.05 = 0.20.5 = 0.124 = 102.5 3.02100 = 0.258 = 9.91.1 = 3.50.7 = 0.90.09 = 0.5610 =7.50.1 = 8.088 = 2.61.3= 1017.5 = 12.30.9= 1.5+3.8= 0.42.5= 81.25= 0.25+0.2= 6.30.9= 01.1= 4.80.24=二、用竖式计算。（除不尽的得数保留两位小数）3.066.9= 0.71 2.5= 0.4687.5=6.490.85= 20524= 0.362.8=15.37.89= 64.8+24.36= 2.070.23= 9.50.25= 1.73=78.2313= 45.450.45= 0.006 0.25=13.2080.26= 8.40.012= 1.250.25=15.361.2= 8.933.8= 1.80.25= 4.480.35= 7.799.5= 3664= 0.762476= 78.611= 5.637.8=93.546=三、解方程。4xx = 19.5 26.43x = 15.3 7x = 98 x34 = 12 5xx14 = 18 2x0.52 = 0.4 x2 x9 = 17.4 7 y3 = 8.19 5423 a = 725.5 m1.3 m = 12.6 931.7 x = 13.4 8 x2.6 x = 37. 15.6-x=1.23 1.5x=2.25 32.8x=4.1 x+5.1x=18.3 0.8x-1.6=3.2 3.5x - 2.1x=0.28四、计算，能简便的要简便。0.720.40.3 16.850.516.92 0.540.54 （7.52.30.4）0.01 2.6(0.1750.25) 9.4 0.96(5.40.9)19.60.48（5.40.9） 1.92（2.3+10.515）180.6（8-6.5） 2.1251.5+7.8751.57.324.370.9 4.050.050.81 0.048900.46（保留两位小数。） 76.20.160.16（保留一位小数。）1.2532 0.563.480.446.522.8（2.2527.51.5） 5.87.67.64.2145.358.641.4 （5.13.6）0.810.0922.25（3212.8） 2.160.90.34.80.4-2.121 0.175250.43.912