五年级上学期计算练习小数乘除法简便运算.docx

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1、五年级上册计算练习（竖式练习）留意：列竖式计算时小数乘法,肯定要数清两个因数共有的小数位数,再确定积的小数位数,然后再去掉里面的O小数除法里，必需将除数化成整数后再依据法则计算.，商的小数点和转化后的被除数小数点对齐一、把卜.列各式转化成除数是整数的除法。O.38.373.8190.469.3840.161.36二、列竖式计算下列各题0.2132.34O.078O.120.96661.8756(1)936(2)7.21836(3)5.93X0.76(保留三位小数）(4)7.25(5)16.3251(6)250.38(保留到百分位）(7)41.2(8)0.561.4(9)3074(商用循环小数表

2、示）(10)9615(11)2.7+3.13(12)1.711(商用循环小数表示）(13)40.48(14)4.7X0.23(15)141.2-48.98(验算）(16)132.4(17)58.8913(18)0.4480.28(验算）(19)4.450(20)7.26.25(21)8.9X0.36(22)3.25X8(23)7.20.48(24)78.92+115.8(25)3-2.08(26)320.016(27)40.518(验算)(28)282.05(29)179.264(30)0.9450.035(31)18-5.29(32)7.453.8(33)1.21X18(验算)(34)9.6

3、1.6(35)2.1.0.25(36)5.850.015(37)5.0613(38)3.525.5(39)0.9574.65(40)75.618(41)50.3414(42)0.8320.26(43)0.73+12(44)O.438.6(45)3.85X0.014(46)96O.64(47)8.686.2(48)3.9520.76(49)50O.25(50)0.46515(51)9.720.027(52)50.448(53)4.953.3(54)18.272.1(55)3.54X13(56)O.698.4(57)97.20.18(58)64.824(59)6.50.48(60)7.4+12.8

4、6(61)64.819(62)179.264(63)5.840.16(64)400.32(65)90-16.75(66)7.044.07(67)3.5255(68)20-5.674(69)1.8722.4(70)179.264(71)2.034.7(72)0.36X0.24(73)3.56+7.5(74)1.9(76)4.323.6(77)6.480.8(78)5.40.036(79)2.41.02(80)O.264.5(81)4.750.05(82)8.322.5(83)3.27O.64(84)0.2824.7(85)32.99.4(86)31.281.6(87)8.620.43(88)9.

5、80.85(89)67.20.42(90)3.06X12计算练习（简便计算）(1)7028(2)2.31X1.2X0.5(3)12.78-(4.97+2.78)(4)994.3(5)63.42.5O.4(6)(7)2.745(8)3.12+3.1299(9)34.82-(4.82+15.2)(10)8.99.9(11)1.253212.5(12)17.85-(2.96+5.85)(13)6.31.4(14)2.53.212.5(15)4.61+5.8+4.2+6.39(16)1.2588(17)38212.50.8(18)4.60.35+4.60.65(19)O.8599(20)132-43.

6、7-56.3(21)O.95X0.95(22)1312.5(23)0.8+0.88+0.22(24)2.4O.87(25)2.4102(26)1.63+2.37(28)4.51.8(29)9.43101-9.43(30)4.8+8.63+5.2+0.37(31)4.23.5(32)10.9-3.74+0.9(33)1.29+3.7+2.71+6.3(34)4.91.4(35)15.17-6.8-3.2(36)(37)2.52.4(38)15.17-6.8-3.2(39)3.2+0.36+4.8+1.64(40)15O.25(41)3.1+25.78+6.9(42)1.23+3.4-0.23+6

7、.6(43)4.89.9(44)2.951.01-2.95(45)1.288.6+0.728.6(46)0.2536(47)0.25(O.4+40)(48)9.169.1632.4(52)5.63.5(53)9.7312.50.8(54)0.1250.250.5X64(55)9.49.94+4.680.25(56)8881622236(57)15.32(58)6.32.89.9+0.17(59)6.02+3.6+1.98(60)4.252.5(61)6.10.983.6+3.63.91(62)12.5O.96O.8(63)6.09(64)1.253.20.35(67)3.210.1(70)0.

8、52105(73)O.32403(75)1.34+1.8+3.66+0.2(76)0.85199(79)9300.65(81)1.27+3.9+0.73+16.1(66)4243.43-4342.42(68)15(0.150.4)(71)28.6(74)7.67-2.57-2.43(77)0.865.181.25(80)5.86-0.72+0.38(82)17.210.11.9+31.40.81(83)6310.1-63O.1(84)3.14(85)84O.422(5-0.68)1.2(86)(12.6+4.8)0.6(87)0.8(88)5.62X1.01(90)45.55-(6.8215.

9、45)(89)6.8+1.256.8X8(91)93050.64.91+5.0922.8(97)2.5(134)0.68+3.420.46(100)28.94289(102)3.25+1.79-0.59+1.75(103)0.258.5414.7(106)4.299+4.25.64+72.25.64(109)44.162.52.50.4(112)25-4.7+5.3O.7+0.222O.9(115)9.4+0.3-6.4(98)3.07-0.38-1.62(104)(2.5-0.25)0.4(107)O.1250.584(110)(7.7+1.54)0.7(113)7.34+2.70.25(1

10、16)0.2946+0.290.5(119)3.1+(25.78+6.9)(121)6.8240.25(1.2+1.3)0.25(124)13.80.254(126)0.83+0.69+0.17+10.31(127)630.350.4(129)12.83+2.25+1.75+6.17(130)7.5+4.9-6.5(132)15.25+4.72-4.75+5.28(133)8-2.45-1.55(99)5.4(101)0.8(4.31.25)(105)0.86(108)27.8(114)0.666(120)3.25+1.83+0.75+2.17(122)7.52.1.+780.79(123)9

11、.4(125)6.75-(0.9+3.75)(128)18.75+9.24-8.75(131)16.79-2.87+2.13(134)1.26(1.260.8)(140)1.57+0.245+7.43(139)3.9(1.35)(141)35.7-4.9-(5.72+5.1)(142)0.250.734(144)4.58+2.39+(5.42+7.61)(145)12.7-4.8-5.2(146)36.54-1.76-4.54(143)12.7-(3.7+0.84)(147)2.551.5+1.5+6.451.5(148)10-2.57-6.430.7+0.11112.1(151)6.3+4.

12、82+3.7(150)0.7777(149)7.60.8+0.27.6(153)2.35+1.713+0.287+7.65(154)3.67X99+3.67(155)0.351.2520.8(156)2.57.5+7.56.4+0.75(157)12.8-4.9-5.1(158)5.14O.25+4.64(159)0.134+2.66+0.866(160)2.43X99+2.43(161)1.018.8-0.088(162)8.23+4.5-8.23+4.5(163)4.71.251.6(164)2.80.5+0.527.2(165)1.8O.9+0.18(166)1.25640.25(167)4.3+1.4+25.7+8.6(168)7.84.863.9(169)4.18+4.18X(172)0.40.70.25(173)0.50.080.50.08(174)12.59.6(152)(4.23+6.17)0.8(175)8.40.2+1.60.2(176)0.230.23(I77)O.75X102(181)6393-1.93-0.84(182)5.649+7.8-3.8(183)6.3+9.8-6.3+9.8(184)840.42