五年级数学上册计算题专项练习

五年级数学计算题专项练习、直接写出得数。2.5x4=20x0.5=7.2m1.2=3.86^100=3.9x0.01=98,4x100=9.1m1.3=8.2m10=1-0.45=36+2.45=0.48x0=0.42m7=73x4x25=0.69m1=1.21m0.6=0,5m0.2=8.4m2.1=76^1000=8.7-5=1.28x8=40x25=0.51x100=0.58x99=0.6x0.9=0.1x0.5=0.5X220.5X2=12.4-(2.4+3.25)=12.5三0.5三0.4=1.521.5+1.5=1084^18x4=2.6+3.1-2.6+3.1=5.7a+a=1022.5=2.5X1.95X0.4=x-0.3x=4aX7=7.220.9=0.2720.03=0X0.995X1000=1.25X8X0.625=7.5X4=0.9X0.3=6.8268=024.6124.61=mXm=m+m=mX1=0.5X8=3.6X0.4=39.68X0=47.6X1=6.45X0.01=420.5=1220.06=1221.2=3230=50X0.04=80X0.3=0.15X7=3.2X6+3.2X4=2.5X4X0.36=3.6X0.412.5X8=1.1X90.2+0.8X0.5=6.03X1000=10X0.6=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=1.7820.3=0.2720.003=2.5X2.3X4=0.0120.1=1.8X20=x-0.4x=5d-2d=38.5X0X0.38=3.620.4=0.6X0.8=2.4X3=0.12X0.7=0.5X420.5X4=425=2.5X0.4=1.620.5=0.220.05=3.6－1.222.4=二、列竖式计算并验算2.7m0.32=35m56=0.36x6.9=15.36m12=11.220.14=2.34x1.5=11.7m2.6=25.2m42=3.74m342.7322.6=1.72X2.6=0.23X3.8=0.85X4.5=4.14223=2.727.=629m61（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3.824.5心（得数精确到百分位）1.5523.8^（省略百分位后面的尾数）28218=1023=78.6211=4.8m2.3（得数保留一位小数）0.27^1.1（得数保留两位小数）0.96X1.7~（得数保留两位小数）5.72X0.182（省略十分位后面的尾数）3.8127^（得数精确到十分位）1.529.912.6211（用循环小数表示。）1、(得数保留一位小数)(1)0.38x0.23(2)5.79x3.6(3)4.6x0.25(4)6m24(5)52.95m75(6)3.01m7(7)4.95^11(8)84.01^31(用乘法验算)(9)0.646^19(10)4.7x0.592、(除不尽的保留两位小数)(11)3m1.2(15)4m15(12)2.7^0.36(13)88.4m1.7(14)7.525^0.38(16)91.2^0.57(1784.84m1.2(18)5.63m6.119)56^77(20)1.47^4.2(21)19.19m0.95(22)56.29m6.123)23^33(24)7.41m0.5725)21^240(26)9.68m1627)3.85^0.76(28)53.3^4.7(29)56.29^6.1(30)28.74m313、得数用循环小数表示。(31)0.2m0.06(32)13m11(33)30.1m33(34)17m1535)7.8m2.2(36)5.52m9(37)67.8m11(38)8m7三、脱式计算。40.2X2.7^16.2(24.8三32)277.32-4.37X0.84.05^0.05^0.817.62^0.16-0.168.752(12.5X7)72三[1.44X(0.1—0.05)]0.4322(6.21-6.09)4.820.4-2.1221[(8.1－5.6)X0.9－1]20.59.282(2.1-1.7)22.56.42[(4.3+2.1)20.8]3.42[(1.2+0.5)X5]0.8x13—3.12+5.28118—(11.4—12.5x0.8)42^(5.25^0.25)0.412.6^0.28x0.2四、简便计算。1.25x5.7x810^0.2^2.55.6x12.59.42+2.8x0.254.5X996.5x1.983.2m5m0.21.56x1.7+0.44x1.711.72-7.85-1.721.8x25+12x55.5X8.2+0.18X550.25X0.089X48.8X1.252.61x4.5+2.61x6.5—2.612.35X4.64+0.536X23.512.5X1.36X0.80.4310132X1.01—0.1X3.2643.5215—3.52152.6X10.14.04-4.0422.023.54X0.423.54X0.45.74X9.9+5.744.83X101-4.835.91-5.91232.5x3.6x0.912.5x0.3x8.81.25x(100—8)3.5x1.02+35x0.0983.4x1.01—8.4x1.5m1.812.5x4.5+4.5x12.5+12.51.2x982.4x1.25x0.30.27x99+0.2750x(6.7x0.02)(0.25+2.5+25)x0.413.5m2.5m0.125m0.4m82.5x3.2x0.1256.8x0.75^0.513.75^0.1252.751.53+23.4^7.222.9—13.68+12.684.7x11—4.7(65)28.8x6.3—6.3x18.8(66)4.8+5.2m4(67)5.37—(2.37+1.8)(68)10.01—2.78+1.59(69)2.85ml.25m0.8(70)10.5x0.25x12(71)3.7x91.6+7.3x91.6—91.6(72)3.2x0.82+3.2x1.18(73)4.05^0.5—1.14(74)1.58x99+1.58(75)12.5x0.4x2.5x8(76)7.75x[20m(3.24-3.04)](77)43.2—1.8x3—4.6(78)4.2x7.8+2.2x4.2(79)0.87x3.16+4.64(80)12.5x4.8(81)4.7x4.7+4.7x6.3—4.7(82)12.5x3.2x0.25(83)23.4^7.2+6.5x0.8(84)20.64—9.83—0.17(85)6.8m(1.2+0.5)x0.04(86)7.26—5.4+1.74—1.6(87)2.06+2.06x99(88)9.5x101(89)100—2.7m0.36—2.5x5(90)(1.62+1.62+1.62+1.62)m1.8x2.5(91)2.8x0.5+0.5x28.2—0.5(92)3.2x2.5x1.25(93)7.2m[(7.22—6.4)m0.9](94)4.65x32+2.5x46.5+0.465x430(95)7.25x67.875+725x0.7875+7250x0.053375(96)0.46x1.9+0.54x1.9(97)3.45x102(98)12.5x88(99)13.65m0.25m6(100)28.98m6.3-3.15五、列式计算。1、53与1.28的和乘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？10、10与8.7的和，除以4.5与1.1的差，商是多少？11、1.2与3.3的和的1.8倍是多少？12、7.2除以2.5乘0.4的积，得多少？13、9个4.8相加的和比14.8多多少？14、2.3与0.57的差，乘0.6，积是多少？六、解方程。91Fx=1.31.2x三2=60(x—4)X25=10x-0.63^0.7=1(x+9)三5=2.46x—10.8=13.2xF6.2X1.5=2.525.1-x=2.94x+1.2X5=24.44.3x—3x=268x=24xm0.5=1.2x—3.8=9.534.06＋x=7.11(7—1.4)x=2.85x—3x11=427.2x—3.6x=9x0.41.8x2—0.3x=2.4(xml.5=1.52.4x=26.43x—24=913x+2x7=4096m6+4x=563x—1.2x=93.6x+2x1.4=8.218x0.6—10x=4.260.4(x—3)=0.721.5x(10—x)=32.8m(3+x)=3.5x0.20.8(x+4.8)=5.2(x—6)m0.5=34x—45+18=211.6x—9=3.84(0.9+x)=4.8(x—1.9)m5=1.13x+2x7=500.4x20—0.4x=624x—8x=28.84.5x+1.6x=42.712(x+3.7)=1440.5x(x—1.8)=2.49x—5.2x6=4.8(2.5+x)m0.8=522.5x2+5x=1354x(0.3+x)=4.80.4x20—0.4x=6(4x—0.32)+1.6=2.083.5x—x=17.54x—10=x+1101.6x+2xx0.7=1828—x+3.6=208.9—5x=2.73.54x5—1.7x=13.454x—0.32+1.6=2.083.5x—0.8x=11.349x—14x5.5=586.2x—x=41.62.8m(3+x)=3.5x0.2七、列方程解答。1、一个数除5.6得28，这个数是多少？2、五(1)班有学生x人，平均分成6组，每组8人。4、--个数的9倍比它的4倍多鹅，这个数是憾？小数保留我小数5、_-个数的半是6.5，这个•数是多少？26.37t316、-會数的3倍加上1.5,和1是16.5，求这个数。I、赢比它15倍少2・4'这个数是多少?