小数四则混合运算专项练习题能简便要简便

1、(1)(2 )(3 )(4 )(5 )(6 )(7 )(8 )(9 )(10 )(11 )(12 )WOR格式小数混合运算专项练习276题（能简便的要简便运算0.11 x 1.8+8.2 X 0.11(13 )X 2.1.25 42.34 X 99+2.34-(1.3+0.5) X(14 )5.85 6.17.17 - 6.8- 3.2-5.4 - 2.7 X 0.8(15 )6.17132X 1015. X ( 1.3+2.15)-(16 )40.26.25-1.25- 0.8(17 )8.4-0.6+8.4- 0.42.5X16 .6.33X101 - 6.331.56X1.7+0.44

2、X 1.7(18 )(19 )16.8 X 10.110.9 0.9+ 0.2+1.8X 3.(20 )1.25 2 X 0.25(21 )1.36+4.85+2.64+6.151.8 X ( 3.41- 2.9) + 0.030.125 X 32 X 2.5* 2.(22 )98.5 5* 41.258 X 18.5-0.258 X 18.58.48+ 0.8 X 0.95. *X( 3.7-(23 )42.52.9 )0. X( 4 - 3.68) *(24 )80.01专业资料整理WOR格式(25 )83.7- 12.83-0.17(38 )25.46-8.23-1.76(26 )5.9

3、6+13 X(3.2-3.12)(39 )2.9+7.1 X 10(27 )4.3+ 2.4 X2 1.7(40 )1.25X 32 X 0.25(28 )16. X24.5+3.8X 4.5 ;(41 )15.682.32-(7.78-4.32)9.0(29 )5- 3.86-3.14;(42 )0.25X 3.2 X 1.25(30 )7.28+0.72-0.9(43 )9.99X 1.01(31 )4.32+5.43+6.68(44 )4.63X 1.4+46.3 X0.86(32 )17.17-6.8-3.2(45 )17.5 + 0.8 + 12.5(33 )5.29X9+5.29(

4、46 )0.9+9.9+99.9+999.9(34 )16.8X10.1(47 )2.9X 99+2.9(35 )2.74X9.5+5X 0.274(48 )25 X11.2 X 40.36+9.6(36 )+ 3.2.(49 )23.25 - 6.75- 3.25(37 )3.7 X525+6.25 X 25(50 )125 X 3.2 X 2.5专业资料整理(36.7-4.9) x101 - 31.8.(68)2.4 x 1.5+3.6一 1.56.33x101-6.33(69)7.38 - 5.14+3.62-2.8635.6 -5 x1.73(70)0.12 x 1.8+8.2x 0.

5、121.6 x !55.4-55.4x 0.6(71 )5.4 + 0.51+(1.2 -1.03)17.68-5.2+2.7 x1.5.(72)8.1 - 5.6 ) (0.04 .x 0.9-1.05+1.08 x0.8+ 0.27(73)10.8 - 0.8 -(0.35+0.05)WOR格式3.6 x 10.1(64 )0.125 x 32 x 2.55.8 x 2.7+0.58 x 73(65 )0.8 x 6.3- 0.8 x 3.83.6+6.4 x 1.8(66 )504 + 3.2 x 2.08(1.48+3.02-(3.6 x 0.5)(67 )( 20 - 0.8 x 9

6、 ) x 5.7(51 )(52 )(53 )(54 )(55 )(56 )(57 )(58 )(59 )(60 )(61 )(62 )(63 )102 x 0.45(74 )8x 1+( 2.3- 2.25 )22.78 - 1.25- 0.8(75 )2.64 x 9.9+0.264(76 )4.52+0.61+1.39+6.480.34 x 101 - 0.34专业资料整理WOR格式4.2-( 1.96-)71.73 )(90 )9.6 - 0.4 X 0.25)(294.4 -19.2 X 6 ) -( 6+8)(91 )12. X 0.7658X 2.5X 0.4 X(92)7.4

7、X 9.929.7 +( 5.85+ 0.65 )4.98+8.02 X 2.560.)8- 40.8- 2.5)0.8 X 69.6 X 12.54.9)8 X 99+4.96.4)8+ 3.2- 2.51.2 X 7.6+7.6 X )6.8 .-5.8) X)(9.4 2.07(93)(94)(95)(96)(97)(98)(99)-4.56-3.44(100 )12.54 -1.543.25(9.36 X)5+9.36+9.36X 2 ) X 1.25(101 )31.53.84 - 2.7 X 0.648.68 - 8.68 - 0.56 X 0.54.7 X 4.7+4.7+4.3

8、 X4.7 .+ ( 8.2- 6.5 ) X2.72 0.5;9.12+9.12 X 9 - 60.2 ;28.4 - 0.4 - 0.2527.36 - 27.36- 7.6X 0.45+6.75 X 0.45-24.5 - 3.5)+ 0.18-14.3X0.02 .(102 )7.5 X 102专业资料整理(77(78(79(80(81(82(83(84(85(86(87(88(897.236WOR格式(104 ) 2.15+8.73+1.27+7.85(117 )9.87X 99+9.87(116 )(103 ) 6.3+3.7X 2.8.52.4-(15+0.6) - 1.6(10

9、6 )5.42(119 )-3.87-1.135.5X 17.3+6.7 X 5.5(107 ) 4.38- 1.56+0.62- 0.44(120 ) 99 X 4.2+4.2(108 ) 0.4 X 270 X 2.(121 )0.25X 1.25 X 3.2(105 )(118 )11.87-(8.2+1.87)46.8-0.9 - 0.4(122 )(109 )(40+1.25 ) X 86.4X 14+15 X 6.4+6.4(110 )(12.5- 0.05) X 8(123 )77.4 )(1.3+1.3X 0.125 X 8)-(80 -(111 )2.6 X 8.5+8.5X

10、 7.4(112 )9.9X 6.9- 6.9X 3.9(124 ) 4 X( 25+2.5+0.25) + 111(125)6.25+( 17.2-3.6 X 4.50.32 (113 )(126 )5.6X 99+5.628.4X 99+28.4(114 )(127)2.5X1.9+1.9+1.9+1.9)0.94X 2.5- 0.45(115 )7.2+ 1.25+ 8 .(128 ) 4 X 0.8 X 12.5 X 2.5专业资料整理WOR格式(129 )17.5- 0.25 X 17+13 .(142 )2.4X 1.5+3.6-1.5(130 ) 10.1 X 87(143 )0

11、.32X 0.25+0.08 - 4(144 )(131 ) 2.3+3.19-( 22 - 19.8)3.7(9.6+1.48+ 8(132 )1.25X 7.2145 )+ 4 X5.8(1.34-0.14 )(133 )9.1- 1.2- 6 - 6.24(146 )+ 0.51-( 1.2-5.41.03 ).(134 ) 7.3+12.83.82.3(147)21.35 - 3.25- 16.75(135 )(5.36+7.64)13X 100-(148.4- 90.85)-(148)33.02 2.532 X 2.5 X(136 ) 7.575+ (5.63 - 1.88) X 0

12、.2(149)0.125(137)(3 -+ 0.23)X7.5(5.5+1.24)(150) 18.1+ 0.2991.(138 ) 0.26+15.68+9.74+2.3267(151)( 2.98+0.67)16- 73.8 X(139 ) 13.26+9.55- 3.26(152)8X 6(140 ) 6.1+3.9- 6.1+3.9(153)( 45+14 ) - 73+710 .(141 )13.7 X 0.125 X31.7+ 0.63 （保留2位小数）(154)8专业资料整理WOR格式(155)0.8x 13-(3.12+5.28)(156)102x0.561.5(157)3x

13、 1.7+0.47 x 1.7.18 +(168)0.3 x( 8 - 6.5 )(169)12.7+12.5+0.5(170)91 - 2.6+ 0.05=(158)5.18+0.73+0.82(171)6.3 x 3.7+6.3 x 6.3=0.7 x(159)51.8+ 1.5(172)( 3.7+1.7 x 0.4)- 2.5=12. x(160)57.1 x 0.87.28+3.(173)2+ 2.5=6.1(161)2 x 99+6.120.74+0.(174)9x 7.4=8. +(162)60.86+8 x 0.35(175)7.8 + 0.125+ 0.8=5. x(163)

14、6( 18.5- 8.5+ 0.5 )37.5 + 0.3 x( 1.34-(176)0.84 )0.125 x(164)4.78x 80(2.5+27.75- 1.5) x(177)1.6 .2.(165)8 x 3.6+1.4 x 2.8(178)6.21- 3.8+2.2(166)(0.4+40 ) x 2.5(179)6.03+3.7+2.9778.(167)7- 17.7 x 3.6(180)17.43 - 6.57- 2.43专业资料整理WOR格式20.47 -( 1.47+6.8)13.26+4.71+3.47+5.2922.74+8.68- 13.7410- 0.2- 2.56

15、4 X 4.5+3.6 X 451.25 X 3.2 X 0.814.5 X 10214.64+3.7 X 2.88.4 - 0.21- 0.50.125 X 9 X 8X 0.34.62+ 5 + 0.665.78 X 2.3+5.78+5.78X 6.7专业资料整理X 20 -( 3.24(193)7.75 3.04 ).(194)1.25 X 0.5 X 8 X 0.2(195)0.97 X 9+0.975.+ 3 X( 3.8-(196)42.9).0. X(197)4( 3.2- 0.8)-(198)5.7+1.9 X 0.2+ 7.6(199)32.4X 6.3+32.4X 3.7

16、(200)18.2X(-10.6 0.750.9-)(201)0.25 X 3.85 X 40(202)1.46 X 3.5+3.5 X 4.54(203)7X 12.5 X 0.84.(204)7 X 3.6+4.7 X 6.4X ( 2.8+4.4)(205)1.45 2.4.0.15(181)(182)(183)(184)(185)(186)(187)(188)(189)(190)(191)(192)WOR格式4.2 X6.18- 3.03) +6.315.02 - 6.8-( 1.02+1.2)0.6 X ( 5 - 0.68) - 1.22.7- 4+6.3 X 0.25(6.02+

17、2.8) + 0.4- 2.053.08 X 3.5+6.2X 3.08+3.08 X 0.32.3+3.91+( 22 - 19.7)21.+ 64.8-( 48.6- 2.76 X 2).93.6 X 3.6+1.4 X 3.60.25 X 0.8 X 0.125 X 0.42.7 X 1.5- 2.79.08+5.45+11.92+4.551.25 X 30 X 1.2 X 0.8专业资料整理(219)0.6+0.94- 0.208X 1.25(220)4.85 X8(221)(64 -22.4+ 1.4 ) X 1.2(222)18.3 - 6.25 - 3.752.8 X(223)3

18、.6+1.4X 2.8(224)6.6 + 14.5-(1.7+1.8)(225)0.25X 9.87 X 4(226)36.7X 2.1+10.8(227)8.45-0.45 X0.1(228)0.73X 102(229)7.8X 5.6+2.3X4.4(230)76.3X 27 - 76.3X 17 .(231)7.05X 23.7+7.0576.3 .X(206)(207)(208)(209)(210)(211)(212)(213)(214)(215)(216)(217)(218)WOR格式(232)( 7.6- 5.2) - 0.4+2.54 X 32.(245)2.5 -( 6.8-

19、 4.9 ) X 0.8(233)17.68-5.2+2.7 X 1.535.(234)6 -5 X 1.73(246)102X 4.5(247)3.4 - ( 1.2+0.5) X 5(235)(1.1- 0.78) X( 2.7- 1.95)(248)8X( 20 - 1.25)(236)1.3 0.75 X 4(249)0.654+10.9 X 6.5(237)81.8X 1.250.X(238)41.9-1.81.0(250)22.7 X 1.25 X 0.8(251)3.91 X 2.8+6.09 X 2.80.8(239)2 X 0.25+1.18 X 0.25(252)6.23+3.09=(240)8.5 X ( 2.36+2.42) - 0.25(241)3.9+ ( 1.3+0.6 )X 6-3.64.2(242)5X 6.3+3.7 X 4.25(243)205X0.9925.(244)6-7.49- 2.51(253)132.4 - 59.8=(254)6.62 X 0.84=(255)2.07 + 0.023