《小数四则混合运算专项练习题（能简便的要简便）.docx》由会员分享，可在线阅读，更多相关《小数四则混合运算专项练习题（能简便的要简便）.docx（12页珍藏版）》请在三一办公上搜索。
1、小数混合运算专项练习276题（能简便的要简便运算）(1)0.11X1.8+8.2X0.11(13)1.25X2.4(2)2.34X99+2.34(14)5.851.3+0.56.(3)5.42.70.8(15)17.17-6.8-3.2-6.17(4)132X101(16)5.41,3+2.150.2(5)6.251.250.8(17)8.40.6+8.40.4(6)2.5X16.(18)16.8X10.1(7)6.33X101-6.33(19)10.9-0.90,2+1.8(8)1.56X1.7+0.44X1.7(20)1.25X3.2X0.25.(9)1.83.41-2.90.03(21)
2、1.36+4.85+2.64+6.15(10)0.125X32X2.5.(22)98.52.54（三）1.258X18.5-0.258X18.5(23)5.42.5(3.7-2.9(12)8.480.8X0.9(24)0.84一3.680.01(25)83.7-12.83-0.17(38)25.46-8.23-1.76(26)5.96+133.2-3.12(39)2.9+7.110(27)4.322.4X1.7;(40)1.25X32X0.25.(28)16.24.5+3.84.5;(41)15.68-7.78-4.32-2.32(29)9.05-3.86-3.14;(42)0.25X3.2X
3、1.25(30)7.28+0.720.9(43)9.991.01(31)4.32+5.43+6.68(44)4.631.4+46.30.86(32)17.17-6.8-3.2(45)17.50.812,5(33)5.29X9+5.29(46)0.9+9.9+99.9+999.9.(34)16.810.1(47)2.999+2.9(35)2.74X9.5+5X0.274(48)2511.24(36)0.36+9.63.2.(49)23.25-6.75-3.25.(37)3.7525+6.2525(50)125X3.2X2.5(51)3.6 10.1(64)0.125X32X2.5(52)5.82
4、.7+0.5873(65)0.86.3-0.83.8(53)3.6+6.41.8(66)5043.2X2.08(54)1.48+3.023.60.5(67)20-0.895.7(55)36.7-4.9XlOl-31.8.(68)2.4X1.5+3.61.5(56)6.33XlOl-6.33(69)7.38-5.14+3.62-2.86(57)35.6-51.73(70)0.121.8+8.20.12(58)1.655.4-55.40.6(71)5.40.511.2-1.03(59)17.685.2+2.71.5.(72)8.1-5.610.9-1.050.04.(60)1.080.80.27(
5、73)10.8-0.8C0.35+0.05(61)1020.45(74)812.3-2.25(62)22.781.250.8(75)2.649.9+0.264(63)0.34XlOl-0.34.(76)4.52+0.61+1.39+6.48(77)4.27-1.96-1.73(90)9.60.4X0.25(78)294.4-19.26)6+8(91)29.7(5.850.65)(79)12.5X0.76X0.4X8X2.5.(92)7.49.9(80)4.98+8.022.5(93)3.84-2.7X0.64(81)60.8-40.82.5(94)8.68-8.680.560.5(82)0.8
6、X69.6X12.5(95)4.74.7+4.7+4.34.7.(83)4.9899+4.9(96)2.728.2-6.510.5;(84)6.483.22.5(97)9.12+9.129-60.2;(85)1.27.6+7.66.8.(98)28.40.40.25；(86)9.4-5.82.07(99)27.36-27.367.6.(87)12.54-4.56-3.44-1.54(100)3.25X0.45+6.75X0.45(88)9.36X5+9.36+9.36X21.25(Wl)31.5-24.53.5(89)7.2360.18-14.30.02.(102)7.5102(103)6.3
7、+3.72.8.(116)52.4-15+0.61.6(104)2.15+8.73+1.27+7.85(117)9.8799+9.87(105)11.87-8.2+1.87(118)46.80.90.4(106)5.42-3.87-1.13(119)5.517.3+6.75.5.(107)4.38-1.56+0.62-0.44(120)99X4.2+4.2(108)0.42702.(121)0.25X1.25X3.2(109)40+1.258(122)6.414+156.4+6.4(HO)12.5-0.058(123)1.3+1.3X0.125X880-77.4(111)2.68.5+8.57
8、.4(124)4C25+2.5+0.25111(112)9.96.9-6.93.9(125)6.25(17.2-3.6X4.5)0.32(113)5.699+5.6(126)28.499+28.4(114)2.5(1.9+1.9+1.9+1.9)(127)0.94X2.5-0.45(115)7.21258.(128)4X0.8X12.52.5(130)10.1X87(143)0.32X0.25+0.084(131)23+3.19(22-19.8)(144)9.6+1.483.7)8(132)1.25X7.2.(145)5.841.34-0.14(133)9.1-l,26-6.24(146)5.
9、40.511.2-1.03.(134)7.3+12.8-3.8X2.3(147)21.35-3.25-16.75(135)5.36+7.6413100(148)33.02-148.4-90.852.5(136)7.5755.631.88X0.2,(149)322.5X0.125(137)7.5-(5.5+1.24)(150)18.1+3-0.2990.23XI.(138)0.26+15.68+9.74+2.32(151)67-(2.98+0.67)(139)13.26+9.55-3.26(152)816-73.86(140)6.1+3.9-6.1+3.9.(153)45+1473+710.(1
10、54)13.7X0.125X8(141)31.70.63保存2位小数(155)0.813-3.12+5.28(168)180.38-6.5(156)1020.56(169)12.7+12.5+0.5.(157)1.531.7+0.471.7.(170)912.60.05=(158)5.18+0.73+0.82(171)6.33.7+6.3X6.3=(159)0.751.81.5(172)3.7+1.70.42.5=(160)12.5X7.1X0.8(173)7.28+3.22.5=(161)6.1299+6.12(174)0.74+0.97.4=(162)8.60.86+80.35(175)7
11、.80.1250.8=(163)5.6(18.5-8.50.5(176)37.50.31.34-0.84(164)0.1254.7880(177)(2.5+27.751.5)1.6.(165)2.8X3.6+1.4X2.8(178)6.21-3.8+2.2(166)0.4+402.5(179)6.03+3.7+2.97(167)78.7-17.73.6(180)17.43-6.57-2.43(181)20.47-1.47+6.8(194)1.25X0.5X8X0.2(182)13.26+4.71+3.47+5.29(195)0.979+0.97(183)22.74+8.68-13.74.(19
12、6)5.43(3.8-2.9).(184)100.22.5(197)0.43.2-0.80.15(185)644.5+3.645(198)5.7+1.90.27.6(186)1.253.20.8(199)32.4X6.3+32.4X3.7(187)14.5102(200)18.2-10.60.9-0.75(188)14.64+3.72.8(201)0.253.8540(189)8.40.210.5.(202)1.463.5+3.54.54.(190)0.125980.3(203)712.50.8(191)4.6250.66(204)4.73.6+4.76.4(192)5.782.3+5.78+
13、5.78X6.7(205)1.45C2.8+4.42.4.(193)7.75203.24-3.04.(206)4.26.18-3.03+6.3(207)15.02-6.8-1.02+1.2(220)4.851.25X8(208)0.65-0.681.2(221)64-22.41.41,2(209)2.74+6.3X0.25(222)18.3-6.25-3.75(210)6.02+2.80.4-2.05(223)2.83.6+1.42.8(211)3.083.5+6.2X3.08+3.080.3.(224)6.6C14.5-(1.7+1.8)(212)2.3+3.9122-19.7(225)0.
14、25X9.87X4(213)21.664.8-48.6-2.7X2.(226)36.7X2.1+10.8(214)93.63.6+1.43.6(227)8.45-0.450.1(215)0.250.8X0.1250.4(228)0.73102(216)2.71.5-2.7(229)7.85.6+2.34.4(217)9.08+5.45+11.92+4.55(230)76327-76.317.(218)1.2530l,20.8.(231)7.0523.77.0576.3.(219)0.6+0.94-0.208(232)7.6-5.20.4+2,5432(233)17.685.2+2.71.5(2
15、46)102X4.5(234)35.6-51.73(247)3.41.2+0.55(235)1.1-0.78)(2.7-1.95)(248)820-1.25(236)1.30.754(249)0.654+10.96.5(237)1.081.81.2(250)22.7X1.25X0.8(238)50.41.9-1.8(251)3.91X2.8+6.09X2.8.(239)0.820.25+1.180.25.(252)6.23+3.09=(240)8.52.36+2.420.25(253)132.4-59.8=(241)3.91.3+0.66-3.6(254)6.62X0.84二(242)4.25
16、6.3+3.74.25(255)2.070.023=(243)2050.99(256)20.026-(8.6+9.70.9230.19(244)25.6-7.49-2.51(257)0.125X32X2.5(245)2.5-6.8-4.910.8.(258)0.8X6.3-0.8X3.8(259)50.43.2X2.08(268)2.744.86+4.86X6.26+4.86(260)20434X0.5(269)0.0812.5+2.50.1(261)43.26+2.347.5(270)25.92+10.1-14.5X0.2(262)20-0.89)5.7.(271)0.48712.548.7(263)13.25-0.8+1.75-1.2;(272)8.16+2.0910.3-9.30.4(264)2.5X99+2.5;(273)1.561.7+0.441.7(265)10.36+4.8-16.55;(274)12.5(7.2-1.910.8(266)12.5X2.4.(275)0.252010+20.1075(267)38.78-19.59+41.22-30.41(276)30.86.34-4.594.
