五年级数学上册计算题专项练习

1、 /6 /64三5=2.5x0.4=1.6三0.5=0.2三0.05=3.6一1.2三2.4= /62.5x4=20 x0.5=7.2三1.2=9.1三1.3二8.2三10=1-0.45=4x25=0.69三1=1.21三0.6=0,5三0.2=1.28x8=40 x25=0.51x100=一、直接写出得数。3.86三100二36+2.45=五年级数学上册计算题专项练习3.9x0.01二98,4x100二0.48x0二0.427=73x8.4三2.1二76三1000二8.7-5=0.58x99=0.6x0.9=0.1x0.54=0.5x2三0.5x2二1084三18x4二12.4-(2.4+3

2、.25)=12.5三0.5三0.4二2.6+3.1-2.6+3.1二1.5三1.5+1.5二5.7a+a=102.5=2.5x1.95x0.x-0.3x二4ax7=7.2三0.9二0.27三0.03二0 x0.995x1000=1.25x8x0.625=7.5x4=0.9x0.3=6.8三68二04.614.61=mxm=m+m=mx1=0.5x8=3.6x0.4=39.68x0=47.6x1=6.45x0.01=40.5=12三0.06=12三1.2=3三30=50 x0.04=80 x0.3=0.15x7=3.2x6+3.2x4=2.5x4x0.36=3.6x0.412.5x8=1.1x9

3、0.2+0.8x0.5=6.03x1000=10 x0.6=3x0.9=0.1x0.1=0.24x0.5=5.4+3.6=1.25-0.25=0.6x0.8=10.2x4.5=2.5x6=9x0.25=0.125x4=4.7x6+4x4.7=1.25x8x0.5=16x0.01=1.78三0.3=0.27三0.003=2.5x2.3x4=0.01三0.1=1.8x20=x-0.4x=5d-2d=38.5x0 x0.38=3.6三0.4=0.6x0.8=2.4x3=0.12x0.7=0.5x4三0.5x4=二、列竖式计算并验算2.7-0.32=35-56=0.36x6.9=15.36-12=11

4、.2-0.14=2.34x1.5=11.7-2.6=25.2-42=3.74-342.73-2.61.72x2.6=0.23x3.8=0.85x4.5=4.14-23=2.7-7.=629三61（得数保留两位小数）6.49x0.58（得数保留三位小数）4.7x1.36=（得数保留一位小数3.8三4.5（得数精确到百分位）1.55三3.8=（省略百分位后面的尾数）2818=103=78.6三11二示。）1、（得数保留一位小数）（1）0.38x0.23（2）5.79x3.652.9575（6）3.01三70.27-1.1（得数保留两位小数）0.96x1.7=（得数保留两位小数）5.72x0.18=

5、（省略十分位后面的尾数）3.81三7=（得数精确到十分位）1.5-9.912.6-11（用循环小数表（3）4.6x0.25（4）6-24（5）4.8三2.3（得数保留一位小数）(9)0.646-19(10)4.7x0.59(7)4.95-11(8)84.01-31(用验算)2、（除不尽的保留两位小数）(11)3-1.2(12)2.7-0.36(13)88.4-1.7(14)7.525-0.38(15)4-15(16)91.2-0.57(17)84.84-1.2(18)5.63-6.1(19)56-77(20)1.47-4.2(21)19.19-0.95(22)56.29-6.1(23)23-3

6、3(24)7.41-0.57(25)21-240(26)9.68-162.5x3.6x0.912.5x0.3x8.88)3.5x1.02+35x0.0983.4x1.01 /62.5x3.6x0.912.5x0.3x8.88)3.5x1.02+35x0.0983.4x1.01 /6(27)3.85三0.76(28)53.324.7(29)56.2926.1(30)28.742313、得数用循环小数表示。(31)0.2三0.06(32)13211(33)30.1233(34)17215(35)7.8三2.2(36)5.5229(37)67.8211(38)827三、脱式计算。40.2x2.721

7、6.2(24.8232)277.32-4.37x0.84.0520.0520.817.620.16-0.168.752(12.5x7)7221.44x(0.10.05)0.432三(6.21-6.09)4.8三0.4-2.1三21(8.15.6)x0.91三0.59.28三(2.1-1.7)三2.56.4三(4.3+2.1)三0.83.4三(1.2+0.5)x50.8x133.12+5.28118(11.412.5x0.8)42(5.250.25)0.412.60.28x0.2四、简便计算。1.25x5.7x8100.22.55.6x12.59.42+2.8x0.254.5x996.5x1.9

8、83.2三5三0.21.56x1.7+0.44x1.711.72-7.85-1.721.8x25+12x55.5x8.2+0.18x550.25x0.089x48.8x1.252.61x4.5+2.61x6.54.3三2.5三0.42.612.35x4.64+0.536x23.512.5x1.36x0.80.431013.54x0.4三3.54x0.45.74x9.9+5.7432x1.010.1x3.2643.5153.5152.6x10.14.04-4.042.024.83x101-4.835.91-5.9131.25x(100 /69x0.41.8x20.3x=2.4 /68.48.4x

9、1.521.812.5x4.5+4.5x12.5+12.51.2x982.4x1.25x0.30.27x99+0.2750 x(6.7x0.02)(0.25+2.5+25)x0.42.5x3.2x0.12513.5三2.5三0.125三0.4三86.8x0.75三0.513.7520.125-2.751.53+23.427.222.913.68+12.684.7x114.7(65)28.8x6.36.3x18.8(66)4.8+5.224(67)5.37-(2.37+1.8)(68)10.012.78+1.59(69)2.8521.2520.8(70)10.5x0.25x12(71)3.7x9

10、1.6+7.3x91.691.6(72)3.2x0.82+3.2x1.18(73)4.0520.51.14(74)1.58x99+1.584.6(75)12.5x0.4x2.5x8(76)7.75x202(3.24-3.04)(77)43.21.8x3(78)4.2x7.8+2.2x4.2(79)0.87x3.16+4.64(80)12.5x4.8(81)4.7x4.7+4.7x6.34.7(82)12.5x3.2x0.25(83)23.427.2+6.5x0.8(84)20.649.830.17(85)6.82(1.2+0.5)x0.04(86)7.265.4+1.741.6(87)2.06

11、+2.06x99(88)9.5x101(89)1002.720.362.5x5(90)(1.62+1.62+1.62+1.62)21.8x2.5(91)2.8x0.5+0.5x28.20.5(92)3.2x2.5x1.25(93)7.22(7.226.4)4.65x32+2.5x46.5+0.465x43020.9(94)(95)7.25x67.875+725x0.7875+7250 x0.053375(96)0.46x1.9+0.54x1.9(97)3.45x102(98)12.5x88(99)13.6520.2526(100)28.9826.3-3.15五、列式计算。1、53与1.28的和

12、乘9.4积是多少?2、2减0.8的差乘4.23加上0.8的和，等于多少？3、从50.9里减去6.2的5倍，所得的差除以2,商是多少？4、一个数的8倍，减去最小的和数，差是36.8，求这个数.5、甲、乙两数，乙数比甲数的3倍多0.1，乙数是5.8，甲数是多少?6、9.6减去4.6的差除15.6加9.4的和，商是多少？7、5.8与3.55的差除以0.45，的多少？8、2.25与0.4的积除以18.09与20.1的商，结果是多少？9、23.5减3.6与0.4的和乘2.5的积，差是多少？0、10与8.7的和，除以4.5与1.1的差，商是多少?1、1.2与3.3的和的1.8倍是多少?2、7.2除以2.5

13、乘0.4的积，得多少?3、9个4.8相加的和比14.8多多少？4、2.3与0.57的差，乘0.6，积是多少?六、解方程。91mx=1.31.2x三2=60(x4)x25=10 x-0.630.7=1(x+9)三5=2.425.1-x=2.94x+1.2x5=24.44.3x3x=266x10.8=13.2xm6.2x1.5=2.58x=24xm0.5=1.21.4)x=2.85x3x11=42x3.8=9.534.06+x=7.11(xm1.5=1.52.4x=26.43x24=913x+2x7=407.2x3.6x=3.6x+2x1.4=8.218x0.6-10 x=4.2696m6+4x=

14、563x1.2x=90.4(x-3)=0.721.5x(10-x)=32.8三(3+x)=3.5x0.20.8(x+4.8)=5.2(x6)三0.5=34x45+18=211.6x9=3.84(0.9+x)=4.8(x1.9片5=1.13x+2x7=500.4x200.4x=624x8x=28.84.5x+1.6x=42.712(x+3.7)=1440.5x(x1.8)=2.49x5.2x6=4.8(2.5+x)m0.8=522.5x2+5x=1354x(0.3+x)=4.80.4x200.4x=64x10=x+1101.6x+(4x0.32)+1.6=2.083.5xx=17.52xx0.7=1828x+3.6=208.95x=2.73.54x5