五年级数学(方程)专项练习题及答案汇编

五年级数学(方程)专项练习题及答案汇编(1)0.4x=15.2(2)2.2x-0.3x-0.8=50.5(3)15x-7x=48(4)17x+3x=80(5)19x+54x-1.1=28.1(6)9.6+5x=28.1(7)7(0.3x-8.3)=25.9(8)8.7x+9.3x+4.9=112.9(9)(11x-14)÷2=103(10)11x-9x+14=42(11)2(0.5x+6.3)=40.6(12)2.1x+0.4×33=21.6(13)(2.2x+5.3)÷7=3.9(14)3x+4x-37=159(15)22(1.3x-2.7)=26.4(16)x÷6=2.4(17)5x+12×3=71(18)5x+36=161(19)5.3x-0.7x-0.3=73.3(20)0.3x+3.9=13.2(21)0.4x+5.3=16.9(22)3x=7.8(23)(8.3x+2.8)÷7=8.7(24)9x+18x-45=90(25)3(2x-7)=189(26)(9.7x-9.9)÷2=29(27)52÷x=4(28)x+4.1=9.8(29)18x=3.6(30)3.1x+3.3=9.5(31)57x÷6=1.9(32)19x+13x+3.1=137.5(33)6.6-x=2.7(34)5.9x+2.5x+4.5=71.7(35)17.6+10x=28.6(36)32x=9.6(37)28x-25x-4.3=5.9(38)3.4x+0.6x+3.6=15.6(39)170+3x=272(40)4x+8.9x-2.2=113.9(41)6.2x+2.2x+1.4=135.8(42)x+4=12.5(43)31x-4.6=1.6(44)x-43=14(45)3.4x+4.6=14.8(46)x-5.2=2.1(47)1.9x+6.2x-2.6=70.3(48)5x+2.3=6.3(49)7÷x=0.2(50)x÷27=0.5(51)(6.9x-1.1)÷31=1.3(52)12.6-2.3x=1.1(53)82-x=80(54)15x-11x=32(55)9x+58=238(56)24(0.2x-3)=24(57)2.7x-1=12.5(58)116-7x=60(59)8x=17.6(60)3x+2.6=5.3(61)6x+9x+38=143(62)13x-10x=18(63)2(6x-9)=126(64)6x=6.6(65)163-70x=23(66)x÷6=25(67)38x-51=139(68)4x=36(69)5(0.3x+6.6)=49.5(70)11x-5x-11=43(71)3.5x-1x-1.7=43.3(72)x÷3=48(73)22x+2×82=318(74)20+2x=100(75)60+x=129(76)61-x=52(77)x÷13=13(78)2x-35=111(79)14x=168(80)79x+32x+4.6=37.9(81)5x-2x-31=89(82)x÷2=1.8(83)2.2x-3.6=3(84)2(0.2x+2.2)=24(85)31x=124(86)2x-18×6=90(87)1.8x-2×3=12(88)7(9x-32)=91(89)168÷x=7(90)10x÷5=1.4(91)5x+6x-5=347(92)x+14=72(93)15.4+0.2x=17(94)7.4+x=15(95)8x+4x+40=232(96)10x-8x+3=39(97)5.3+x=8.1(98)x+6.7=16.5(99)x÷7=1.5(100)12x-6x-3.3=11.1(101)179+4x=379(102)18x-9x=45(103)8.5x+0.3x+3.9=39.1(104)0.7x-4=2.3(105)177-18x=123(106)7.6x=15.2(107)9x-3.7=2.6(108)10x+15x+32=132(109)57+x=128(110)7.6x+2.8x+0.8=115.2(111)(1.7x-5.9)÷32=0.4(112)6.3x-1.9x-4.5=8.7(113)(6.8x+4.4)÷4=4.5(114)x÷37=0.3(115)3(3x+41)=159(116)5(0.7x-3.9)=40(117)(4x+48)÷2=52(118)3.7x-0.5x=76.8(119)3.4x+6.2x+0.4=134.8(120)x+94=123(121)190÷x=10(122)(3.3x+5.8)÷4=13(123)5÷x=1(124)(6x-44)÷34=1(125)x+37=52(126)22x-28×3=114(127)3x+45x-4.4=38.8(128)43x+95x-0.2=68.8(129)0.6x+4.1=8.9(130)42x-23x+2=15.3(131)10x-6x-37=39(132)45x-36x-0.2=5.2(133)20x+37x-3.9=47.4(134)18.2-1.8x=12.8(135)6.9x-2x-0.5=9.3(136)17x+9x-18=34(137)5x+5×3.1=28(138)81x+2x+2.3=93.6(139)(4.4x+8.6)÷29=0.6(140)6.4+x=11.8(141)5.7x+1.9x=53.2(142)7x=182(143)147÷x=3(144)20x-12×2=136(145)39x-23×0.3=12.6(146)83+x=134(147)15-0.6x=4.2(148)6.2x-6x+2.4=3.4(149)5x-3x+4.6=22.6(150)2.5x-0.8×3=10.1(151)34x-7×1.1=9.3(152)3.1x-2.4x=17.5(153)132÷x=4(154)3x+14×0.6=22.8(155)(3.9x-3.1)÷23=1.9(156)99-x=87(157)8.9x-6.5x+1.8=6.6(158)3.3x-2.1=14.4(159)192-9x=120(160)10x-5x+27=67(161)3x+5.6=14.9(162)x+52=150(163)83x-14x-0.5=54.7(164)4x+20×9=220(165)0.9x+7.9x=44(166)14x-10x+10=38(167)7x-1=12.3(168)6.1+x=9.3(169)81÷x=9(170)0.4x+1.6x-4.9=63.1(171)53+x=118(172)6.3÷x=0.3(173)15x÷33=0.5(174)(6x-12)÷14=9(175)2x=180(176)63x-30x+4.7=54.2(177)11x-7x=72(178)9(x-16)=108(179)6(0.3x+3.6)=41.4(180)3.1x-1x-4.8=39.3(181)16x+50×3=182(182)x÷3=31(183)7x+4.6=15.8(184)3.9x+5.4x=130.2(185)3(x+22)=102(186)12.5+2.4x=22.1(187)(13x+2)÷24=12(188)4x-2x+35=83(189)17x+25×0.6=21.8(190)2x=12(191)14-8x=11.6(192)(1.1x-1.5)÷32=0.4(193)3x=99(194)20x÷10=4(195)8x=24(196)10x-15=175(197)1.3x-0.7x=19.2(198)52x+51x+3.1=85.5(199)11x+17x-32=192(200)55-x=31(201)(11x+17)÷13=3(202)3x-4×0.7=5.9(203)2(5x+35)=170(204)(5.1x-8.4)÷4=8.1(205)14.6-1.3x=8.1(206)2x-2×10=168(207)(10x+40)÷20=7(208)27-x=25(209)24x÷16=0.3(210)16x-8x=32(211)4(2x+9)=60(212)83x+80x-3.7=175.6(213)x-54=39(214)x÷2=42(215)84x-62x-4.1=20.1(216)3.3+x=11.8(217)7x÷56=2(218)2x=11(219)9x+29×0.5=20.8(220)18.2-2.1x=1.4(221)69x-41x-2.2=3.4(222)0.9x+3.3x=71.4(223)4.8x÷8=1.2(224)5x+12×0.6=23.2(225)6x-1.6=16.4(226)(11x-19)÷2=40(227)30x÷4=4.5(228)1.4x+0.6x-3.9=72.1(229)7x+14x=210(230)3.9+20x=13.9(231)14.1+0.2x=21.5(232)4.6+x=7.5(233)7.6-x=6.9(234)127+12x=247(235)x-5=65(236)x÷33=3(237)5.2-6x=4(238)x÷14=12(239)x+2.3=6.9(240)x÷3=47(241)3x+3.1=18.7(242)3(2.5x+4)=49.5(243)0.6x+1.3×7=25.3(244)x-0.2=8.7(245)(3x+33)÷33=3(246)14-2.2x=3(247)5x-3.5x+2.6=16.1(248)36x-21×0.4=6(249)97-x=84(250)2(0.4x+1.4)=11.6(251)16.3+1.1x=27.3(252)(0.4x+5.2)÷17=0.4(253)0.8x÷80=0.2(254)14x+9x=69(255)94+x=102(256)8(3.2x-0.8)=44.8(257)2x+25=189(258)180÷x=4(259)0.2x+3.6=15.6(260)11.9÷x=1.7(261)19.2-6x=18(262)(6.1x-1)÷12=5(263)6.5+x=14.3(264)x-76=23(265)x-0.6=1.2(266)5x-2.5=3.5(267)4x+14x-28=134(268)24x÷12=4(269)18x-12x+29=71(270)(5x+8)÷2=69(271)6x-2x-39=45(272)13x=11.7(273)5x÷95=2(274)19x+59=249(275)1.4x+3.2x-3.7=28.5(276)2.2x-1.3x-2.3=19.3(277)x-17=55(278)x-52=10(279)46x-10x+4.4=11.6(280)9(7x-18)=153(281)1x=18(282)15x-5x+45=105(283)0.2x+1×4=5.6(284)x÷20=0.3(285)8÷x=0.2(286)3x-4.9=14(287)36x-1.8=16.2(288)15.9+0.9x=26.7(289)19-6x=10(290)181-2x=133(291)x-3=3.4(292)13x÷26=7(293)9.4-x=8.6(294)53x-38x+1.3=25.3(295)8x+3.9=19.9(296)3x+14x=68(297)3.1x-2.1x=12(298)18x-2×4.9=2.8(299)3+x=7.1(300)14x+14=70(301)12÷x=1(302)17.6÷x=0.4(303)3.9x=15.6(304)3.3x-2.7=13.8(305)19x-6x+30=69(306)9.4x-5.3x-2.7=9.6(307)87x-71x-3=9.8(308)13.3-2.5x=8.3(309)1.3x+1.1×6=24.8(310)18x-6x-2=130(311)3(0.7x-9.3)=9.9(312)10x+7x=289(313)0.4x+1×13=29.8(314)2.2x+3.2x=81(315)(14x-27)÷3=75(316)6+x=54(317)9x+5x-6=260(318)12x+55=79(319)1.2x÷18=0.6(320)0.5x÷30=0.2(321)3.3x-0.5×7=16.3(322)1x+1.8x=84(323)6x+5x=154(324)1.1x-0.2×18=7.4(325)x+56=103(326)191-35x=16(327)6.2x+0.7x=69(328)79-x=32(329)2x+31=97(330)2x+3×16=78(331)29x-25x+2.4=4.4(332)3x+4x=70(333)6.7x-2.1x+0.2=14(334)15x+9x+19=91(335)4(0.9x+2.8)=32.8(336)3.4+3.8x=22.4(337)x+68=79(338)x+2.6=12.3(339)8x+6.2x-3=110.6(340)7x+19x=130(341)6.1x-3.2x=46.4(342)49x-41x+1.7=3.3(343)1.1x+3.1x-1.1=91.3(344)(6x-28)÷16=5(345)8.6+0.7x=27.5(346)111+20x=271(347)3x+2.6=15.2(348)5x=180(349)99x-62x-2.1=23.8(350)8x+3×7=149(351)(15x+25)÷5=41(352)73+5x=233(353)14x=112(354)40x÷12=1(355)1x+0.6×21=18.6(356)1.2x+2.5x=18.5(357)2.8x+1.5x-0.5=33.9(358)9x+9×0.5=18.9(359)8x-20=140(360)3.8x+1.4x=104(361)13x+19×8=217(362)13x+18×0.3=23.6(363)3.3+44x=16.5(364)14x-35=105(365)2(0.4x+3.4)=20.4(366)(6x-40)÷14=4(367)5(0.4x-7.5)=22.5(368)19x+29x+3.3=65.7(369)x-1.8=5.4(370)83+x=153(371)x+9.7=17(372)17x+18x-42=98(373)7x-2.2=4.8(374)99x-21x+2.4=57(375)x÷7=2.1(376)1x-0.4×30=4(377)7.5x-3.3x+1.2=47.4(378)11x+46=68(379)(6.8x-6.2)÷26=2.9(380)25x÷5=30(381)0.9x-0.7x-1.1=11.7(382)(4.4x-4.9)÷29=1.5(383)8x-2x-26=76(384)8(9x-40)=112(385)1.8+x=6.4(386)20x+2.6=8.6(387)7x=8.4(388)6.7x-2.8x=15.6(389)39-x=21(390)22x-52=146(391)25÷x=5(392)17x+3x+30=150(393)4.2x+3.2=15.8(394)27+x=90(395)168-15x=18(396)7.2-0.2x=6.2(397)1.8+59x=13.6(398)15x-9x=42(399)13x+6×3.1=31.6(400)6.4-x=2.7(401)67+45x=157(402)3.1x-0.9×12=4.7(403)(7x+31)÷45=1(404)0.6x=4.8(405)0.3x+3×4=22.5(406)2x+2×87=252(407)3(0.7x+0.5)=43.5(408)x÷21=0.6(409)13x-3x-19=101(410)(9x-38)÷43=1(411)(4.5x+8.1)÷2=19.8(412)95x-45x-3=17(413)48x+17x+4.3=134.3(414)1.2x÷22=0.6(415)6x-15×0.5=4.5(416)187+3x=385(417)37x+88x+4.2=29.2(418)8.9-x=5.7(419)1x-3.5=16.5(420)2(x+47)=98(421)1.5x+3.4×2=14.3(422)10x+11x+5=341(423)2(x+37)=104(424)40x÷24=5(425)0.3x÷96=0.2(426)(6.8x+3.2)÷4=17.8(427)75+48x=219(428)19.3-2x=11.9(429)2.3x=9.2(430)(15x+27)÷12=21(431)x÷27=4(432)x+5.7=6.3(433)8.8-x=7.8(434)9x-5x=84(435)2x-2×44=96(436)2x-9×5=95(437)2.8x÷20=0.7(438)x+6.2=15.7(439)5(13x+9)=175(440)3(10x-28)=66(441)5x-37×0.4=4.7(442)13+18x=16.6(443)6(0.7x-4.5)=6.6(444)97-x=86(445)9.6+25x=24.6(446)23x+64x-3.7=65.9(447)0.3x÷21=0.6(448)12x+4.3=17.5(449)7.3+0.2x=17.1(450)9-x=3.8(451)x÷4=3.8(452)9x-3x-21=105(453)5.9-2x=2.3(454)5.6x-3.2x+3.2=17.6(455)0.2x+2.1=5.7(456)x+4.9=7.7(457)9.2x-7.6x=12.8(458)9.1x=18.2(459)26x+3x-1.7=18.6(460)65x+68x-4.7=48.5(461)3.6-x=1.5(462)3(x+2)=153(463)94-2x=36(464)4.4÷x=1.1(465)x-26=11(466)4.7x-3.9x+0.7=15.9(467)11x-6x+43=128(468)11x+17x+47=299(469)13.5-6x=3.3(470)15x+5x+8=228(471)18.6+34x=25.4(472)8.6x-3.2x=21.6(473)11.5-2x=1.5(474)(4.7x+6.5)÷8=10.8(475)18x-20=178(476)1.9x-5.1=4.4(477)3x+42=123(478)4x-29×0.5=4.7(479)1.7x-0.8×5=6.2(480)9x-7x=28(481)19x-9x-21=29(482)1.6x-0.2x+1.7=14.3(483)(12x-45)÷3=73(484)3x÷15=0.5(485)5x+13x-0.9=36.9(486)x+17=88(487)24x÷18=4(488)19(0.2x-7.4)=41.8(489)2.7x+1×5=10.4(490)154-25x=54(491)0.6x-4.6×2=5.2(492)3x+6x+27=144(493)20x-39=121(494)x-74=23(495)2x+3x-14=266(496)10x÷5=3.2(497)0.6x+1.5x-1.4=67.9(498)15.1+28x=26.3(499)13x+7×17=301(500)20x÷8=5(501)5x+11x=288(502)22x+7×0.6=10.8(503)4x-6×2.9=1(504)7x-2.2=3.4(505)0.6x+0.7x+0.6=74.7(506)28x-2×52=92(507)5(x+13)=95(508)x-0.9=3.2(509)x+69=127(510)x-43=47(511)5(2x-37)=105(512)3.3x÷11=0.6(513)64x+35x+2.2=71.5(514)10x-2×62=56(515)x-6=2.6(516)17-5x=10.5(517)13+2.2x=26.2(518)28x÷8=1.4(519)x-2.8=4.8(520)45x-44=91(521)x+53=139(522)x-0.2=6.9(523)0.6x+3.7=9.1(524)0.9x=16.2(525)73x-35x+2.7=36.9(526)8.6-x=5.4(527)4(x-28)=40(528)68+x=163(529)1.6x-5.1=9.3(530)10-3x=8.5(531)180÷x=5(532)5x-3×4=173(533)2.8x-0.7×3=17.5(534)5.5x-4.2x=14.3(535)4x+23x+4.6=28.9(536)1.7x+3.5x+2=33.2(537)9x-2.3=4.9(538)8.8x-2x+4.1=65.3(539)2.7x=8.1(540)9.4÷x=4.7参考答案(1)x=38(2)x=27(3)x=6(4)x=4(5)x=0.4(6)x=3.7(7)x=40(8)x=6(9)x=20(10)x=14(11)x=28(12)x=4(13)x=10(14)x=28(15)x=3(16)x=14.4(17)x=7(18)x=25(19)x=16(20)x=31(21)x=29(22)x=2.6(23)x=7(24)x=5(25)x=35(26)x=7(27)x=13(28)x=5.7(29)x=0.2(30)x=2(31)x=0.2(32)x=4.2(33)x=3.9(34)x=8(35)x=1.1(36)x=0.3(37)x=3.4(38)x=3(39)x=34(40)x=9(41)x=16(42)x=8.5(43)x=0.2(44)x=57(45)x=3(46)x=7.3(47)x=9(48)x=0.8(49)x=35(50)x=13.5(51)x=6(52)x=5(53)x=2(54)x=8(55)x=20(56)x=20(57)x=5(58)x=8(59)x=2.2(60)x=0.9(61)x=7(62)x=6(63)x=12(64)x=1.1(65)x=2(66)x=150(67)x=5(68)x=9(69)x=11(70)x=9(71)x=18(72)x=144(73)x=7(74)x=40(75)x=69(76)x=9(77)x=169(78)x=73(79)x=12(80)x=0.3(81)x=40(82)x=3.6(83)x=3(84)x=49(85)x=4(86)x=99(87)x=10(88)x=5(89)x=24(90)x=0.7(91)x=32(92)x=58(93)x=8(94)x=7.6(95)x=16(96)x=18(97)x=2.8(98)x=9.8(99)x=10.5(100)x=2.4(101)x=50(102)x=5(103)x=4(104)x=9(105)x=3(106)x=2(107)x=0.7(108)x=4(109)x=71(110)x=11(111)x=11(112)x=3(113)x=2(114)x=11.1(115)x=4(116)x=17(117)x=14(118)x=24(119)x=14(120)x=29(121)x=19(122)x=14(123)x=5(124)x=13(125)x=15(126)x=9(127)x=0.9(128)x=0.5(129)x=8(130)x=0.7(131)x=19(132)x=0.6(133)x=0.9(134)x=3(135)x=2(136)x=2(137)x=2.5(138)x=1.1(139)x=2(140)x=5.4(141)x=7(142)x=26(143)x=49(144)x=8(145)x=0.5(146)x=51(147)x=18(148)x=5(149)x=9(150)x=5(151)x=0.5(152)x=25(153)x=33(154)x=4.8(155)x=12(156)x=12(157)x=2(158)x=5(159)x=8(160)x=8(161)x=3.1(162)x=98(163)x=0.8(164)x=10(165)x=5(166)x=7(167)x=1.9(168)x=3.2(169)x=9(170)x=34(171)x=65(172)x=21(173)x=1.1(174)x=23(175)x=90(176)x=1.5(177)x=18(178)x=28(179)x=11(180)x=21(181)x=2(182)x=93(183)x=1.6(184)x=14(185)x=12(186)x=4(187)x=22(188)x=24(189)x=0.4(190)x=6(191)x=0.3(192)x=13(193)x=33(194)x=2(195)x=3(196)x=19(197)x=32(198)x=0.8(199)x=8(200)x=24(201)x=2(202)x=2.9(203)x=10(204)x=8(205)x=5(206)x=94(207)x=10(208)x=2(209)x=0.2(210)x=4(211)x=3(212)x=1.1(213)x=93(214)x=84(215)x=1.1(216)x=8.5(217)x=16(218)x=5.5(219)x=0.7(220)x=8(221)x=0.2(222)x=17(223)x=2(224)x=3.2(225)x=3(226)x=9(227)x=0.6(228)x=38(229)x=10(230)x=0.5(231)x=37(232)x=2.9(233)x=0.7(234)x=10(235)x=70(236)x=99(237)x=0.2(238)x=168(239)x=4.6(240)x=141(241)x=5.2(242)x=5(243)x=27(244)x=8.9(245)x=22(246)x=5(247)x=9(248)x=0.4(249)x=13(250)x=11(251)x=10(252)x=4(253)x=20(254)x=3(255)x=8(256)x=2(257)x=82(258)x=45(259)x=60(260)x=7(261)x=0.2(262)x=10(263)x=7.8(264)x=99(265)x=1.8(266)x=1.2(267)x=9(268)x=2(269)x=7(270)x=26(271)x=21(272)x=0.9(273)x=38(274)x=10(275)x=7(276)x=24(277)x=72(278)x=62(279)x=0.2(280)x=5(281)x=18(282)x=6(283)x=8(284)x=6(285)x=40(286)x=6.3(287)x=0.5(288)x=12(289)x=1.5(290)x=24(291)x=6.4(292)x=14(293)x=0.8(294)x=1.6(295)x=2(296)x=4(297)x=12(298)x=0.7(299)x=4.1(300)x=4(301)x=12(302)x=44(303)x=4(304)x=5(305)x=3(306)x=3(307)x=0.8(308)x=2(309)x=14(310)x=11(311)x=18(312)x=17(313)x=42(314)x=15(315)x=18(316)x=48(317)x=19(318)x=2(319)x=9(320)x=12(321)x=6(322)x=30(323)x=14(324)x=10(325)x=47(326)x=5(327)x=10(328)x=47(329)x=33(330)x=15(331)x=0.5(332)x=10(333)x=3(334)x=3(335)x=6(336)x=5(337)x=11(338)x=9.7(339)x=8(340)x=5(341)x=16(342)x=0.2(343)x=22(344)x=18(345)x=27(346)x=8(347)x=4.2(348)x=36(349)x=0.7(350)x=16(351)x=12(352)x=32(353)x=8(354)x=0.3(355)x=6(356)x=5(357)x=8(358)x=1.6(359)x=20(360)x=20(361)x=5(362)x=1.4(363)x=0.3(364)x=10(365)x=17(366)x=16(367)x=30(368)x=1.3(369)x=7.2(370)x=70(371)x=7.3(372)x=4(373)x=1(374)x=0.7(375)x=14.7(376)x=16(377)x=11(378)x=2(379)x=12(380)x=6(381)x=64(382)x=11(383)x=17(384)x=6(385)x=4.6(386)x=0.3(387)x=1.2(388)x=4(389)x=18(390)x=9(391)x=5(392)x=6(393)x=3(394)x=6