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1、-五下递等式计算-第 8 页递等式计算(1)3.149.9+0.314 (2)4.05101 (3)(4)(5)(6)7125 (7)(8)2.57.830.4 (9)54(3.94+6.86)0.8 (10)0.5640.5+0.4459.5 (11)(12)(13)6.34.2 (14)99999199(15)2.5(6.45.64)(16)5.4(2.74)(17)(18)(19)(20)(21) 7.5(2.57)(22)6.4(1250.125)(23) 0.8(10.240.5)(24)(25)(26)30.1(6.07+2.53)0.7(27)(28) (29)(30)(31)8
2、.75(87.50.235.4)(32)(1-0.8)(4-3.68)0.01 (33)(2.5-10.8)0.8-0.8 (34) 29.5(9.50.86)(35) (12.52.550)8(36)(37)(38) 4.87.5830(39)(40)(41(42) 2641.80.8(1.50.9) (43) (7.62.40.5)(0.0640.4)(44)(45)(46) (3.120.9)(10.8)0.01(47)8.1(2.71.5)(48) 9.099.099.09 (49)(50) 17.8640561780.31780(51)1.852.46.68.15 (52)(53)(
3、54) 21.664.8(48.62.72)(55)(56)(57) (58) (59) 32-(7.25+0.758)50(60) (61) 4.22.6(2.40.54)(62) 239692(63) (64) 280.363.67.2(65)(66) 231(114.5)(67) 453.645(68) (0(69)2.5(3.73.73.73.7)(70) (71) 723.67(72)(73)(74)(1.24.5201.8)100(75)5.6442.8102.82(76) 0.993.61.8(77)0.4(78) 4.8870.52 (79)7.30.26260.26(80)
4、(81) 17.751.55.251.523 (82)8.4(83) 90.2(77.49.8(84) 16.50.250.42(85) 0.321(86) 0.5401. 250.58(87) (67767658)8(88)3.61.250.85(89)8.58.2191.319(90)211.258(91)0.4670.142.84(92)(93) 0.6(94)(95) 7.59.2150.315(96)(97)37.57.5(19.24.53.6) (98) 400.82.523240.16 (99)(100)(101) 6.5(1.316)(102)(103)(104) 0.6670
5、.162.86(105)(106)(107) 195.3(445.54.5)5(108) 4.2(5.14.6)0.80.3(109) 2(110) 0.350.35(111)(112) 81000 (27 78 +27 22 ) (113) 0.812.77.10.241.6(114) 210.581.4-(115)(116) (1.91.90.9)()(117) 3.2 (15.2-43.6)0.16 (118) (119) 7.83657.837.8334(120)(121)(122) 13.40.397.6(123) 0.351(2.7-2.66)+0.65(124) (125) 0.
6、0(126)(127)0(128) 0.260.75(129) (+)0.13(130) 0.15+(3.74-1.8)0.420(131) (0.(132)(133) 0.36(43.6)(134) 3985202615(135)2.438246.30.2410(136) 0.18(5.83.8)0.42(137)(138)(139) (140) (141)2.438246.3-0.2410 (14(143)12.45+78.98+7.55+0.02 (144)17.5(3.59)(145)2.5(6.3-5.64) (14(147)(6.1-4.68)0.8-1 0.4 (14(149)(
7、1.6+1.6+1.6+1.6)2.5 (15(151) (152)9.32(7-6.56) (153)234.50.59784.5 (154)9.33.21.5 (155)84000.250.4 (156)5.6442.8102.8 (15(158) (159)9.99999.9 (16)4.53.23.24.5 (161)1.2532025(162)8.6464.8-(48.6-2.72) (163)2.50.51.6 (164)(20-0.2)(9.5+5) (165) 489101489(166) 1.92.3+2.39.1-2.3 (167)0.9625(168) 28453713
8、(169)8251.2516(170)0.15+(3.74-1.8)0.420 (17(172)9.9+1.1191.172(173)3.54.9+350.3+0.3521 (174)0.9854 (175)0.25274 (176)1.42-0.4880.6 (177)45366445 (17(179)0.8730.873 (180)1.08125(181)54(3.946.86)0.8 (182)0.241.2250(183) 8.1(90.9)(184) (185) 5.691569 (186) (187)7.02101(188)99.94.1 (189(190) 87.5274(191
9、)(192) 1.637625(193) 0.3(10.510.5) (194) (0.25+0.125)(0.750.4) (19(196)46(197)(5.1+5.1+5.12)0.25 (198)300(32.55) (199) (200)+(201) (202) 3.40.25 (203)0.1252.38(204)3.74.7+6.33.7-3.7 (205) (206) 5.2+4.80.62-4(207)1256346432 (208)3.57203528 (209()7.8 (210) 4446.01111(211+(212)(213)406.7+443-40(214) (2
10、15) 37.424+37.4 +37.475(216) 1.250.253.2 (217(16)(218)(219) (220) 2.5 (221) (222) 7.20.36(2.997.01) (223) (224) (225)1.3(16.9-0.870.3) (226)(227) 7919729(228) 32()(229)5.75.7570.520.579(230) (231) +3.96.837.82(232) 16(233) 469.1383.44.3212(234) (235) (236) 0.9)(1 (237) (23(239) 0.1(53.73-17.49)(0.36
11、0.9)(240)9.4+0.6(8.3-4.3)(0.20.2)(241)(242)(243) (2.56-1.07)5+101.512.5 0.9(244)11.01+1(245)( 1 ) 2.50.5(246)(247)(248) ((249)(250)解方程(1)3x10=8x6(2)3x10=8x6(3)5x10=3x16(4)5x40.8=10(5)5x40.8=10(6)8x10=3x16(7)8x1.52=5(8)8x1.52=5(9)8(x1.5)=20(10)8(1.5x)=4(11)8(2x1.5)=40(12)10(x5)2=18(13)10(x5)6=18(14)8
12、x2=28(15)8x3=16(16)6x3=18(17)4x3=18(18)5x(19)5x(20)3x(21)3x1.8=5x(22)5x9=3x1(23)3x9=5x1(24)5x9=3x1(25) 53x9=55x10(26)2(x1.5)=9(27)2(x-1.5)=8(28)2(x3)=7(29)2(2x3)=7(30)(x3)3=7(31)(2x3)3=7(32)5x153x=5(33)5x153x=20(34)5x158=15(35)5x158=15(36)4x2=10.5x (37)5x1.8=x(38)xx(39)xx(40)3x2x=6(41)4x2.54=12(42)
13、(x1.5)2=9(43)2(4.52x)=6(44)3 ( 5x 4 )= 45 (45)3x+24=5x12 (46)x-9=23(47)3(5x-4)=45 (48)3x+24=5x+12(49)58-5x=43 (50) 27-x=2x+15(51)5(2x+3)=20(52)3(8+x)2=18(53)x+2x(54)3(5x+5)=195(55)144-x=2(54+x)(56)1.528x=1(57)585x = 43 (58)x+1.28 =2.3 (59)3x+8=4x7 (60)5(2x+ 3 )=20 (61)35x=4( x+5)(62)x(63)x(64)9x+6x(
14、65)10x45=0(66)x=0.3 (67)x(68)x(69)xx=0.375 (70)x+0.6=0.365(71)x(72)xx (73)3x+12x=18(74)5x+25=2x+67(75)7(2x-5)=42 (76)3(5x-4)=45(77) 13x+24=25x-12(78)xx(79)4x14(80)0.6(x3)9(81)2x5x(82)1-x(83)8x2=23(84)7(x+3.2)2=28(85)x-xx=0.75 (86)9x-4.8=3x(87) x(88)(x8.210.8)2 =1.8(89)9xx(90)6x(91)3(10.3x(92)2.4xx(9
15、3)1.8 - 2x = 1(94)3(8+ x)2= 18(95)33x6(96) x2x(97) (68-x)3218 (98) 120x20.8(99) 3(67.4x)26.4(100)12x189x(101)166x10x(102)2.2(x0.6)(103)x36x(104)7x144x(105)x(106) 90(x6.4)318(107)7(x3)256 (108)48x=9x (109)5x6(110) 2.5(x3)20 (111) 78x0.38.1 (112)xx(113)28.8=7x(114) 80=0.4x-75.6(115) x6.5-8=6.5+8(116)
16、x-=-x(117) 18x-6.6=8.22+10.2x(118) 48.6-2(23x)=x(119)5(x-1.5)=x(120) 4(28-x)=10(121)x-7x+20(122) 2x+1.52=8(1-x)(123)13(x+2)=5(x+7)(124)(12x+6)5=18(125)0.856=5x(126)48-4x=2x- (127) 15x-18x(128) x+0.2=282 (129)444-x=2(54+x)(130)75-6x=4(x+5)(131)3(x+3)=6(x-11)(132)24(5x+5)=195(133) x2+=15x(134)20.46-2(
17、x-2)=2.2(x+1)(135)42x(136) 15x-(2x+5)3=4.87(137) 4.8-2(x-2)=(138)5(2x+8)-5=6(2x-7)(139)146-5(5x-2)=80(140)x+192=7x-28(141)554x=275(142)(x+2.5)2=1(143)5(x+9)=7(12-x) (144)6(x-4)=4(x+5)(145) 1.5(3x+)=18x(146) -x=17.72-4x(147) x=88.2(148) 15x-4x+x=61.2(149)4x3=18(150)3(8x )2= 18(151)xx81.2(1(153)6x+0.4
18、8=9.8 (154)4.4x0.4=5.2x (1xx=5.4 (156)2(x3)=7(157)15x2510x=20(15851.2=2x (159)2x)=8 (1x=16.2 (161)16x-10=6x+240 (162)5(24-x)=10x(163)9x+7x-x(164)3x+24.65x-12 (165)4+5(2x+3)20(166)4(x1.5)=16(167)6x+3x=24.5 (168)16x(169)7(x+3)=282 (170)30x+90=50x100 (171)1.5416x=2 (172)8x84.8=20 (173)483x=9x (174)4(2x
19、1)=10(175)5(x3)2=20 (176)24-7x=4x+2(177)15x120.8=30 (178)10x80.8=20(179)8(1.5x)=4 (180)4(4.52x)=12(181)(4x2)8=20 (182)8x2=56 (183)15x27=9x3 (184)8(x1.5)=20(185)25x45=15x5 (186)16x1.54=10(187)32x1.58=20 (188)8(2x1.5)=40(189)48x60=18x30(190)6x20=8x6 (191)9x27=15x3(192)4x3=36 (193)(4x3)3=7(194)25x1.2=1.5 (19x(196)4(40x)3=20 (197)6x3=18 (19x128=20(199)0.5(x1.5)2=28 (200)0.1(x5)6=18(201)31.83x =6 (202)12x2=8(203)3.742.5x=0.24 (204)253x22=8x(205)64x52(5x)=296(206)15x1510x=5 (207)18x-(2x(20x128=15(209)19x5=14x10 (210)9x30=24x18(211)(x3)3=27 (212x-11.4=27+14.6 (213)5(2x3)=7
限制150内