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)106-4x=22(2)8(1.4x+0.2)=24(3)36x-13x-2.9=33.9(4)14x-11×5=99(5)15.7+1.8x=26.5(6)6+x=14.4(7)22x-5.5=12.1(8)x÷62=0.3(9)2x÷4=1(10)3.5x+1.1x=41.4(11)15.8+3.7x=26.9(12)58x-59=115(13)4.3+x=5.4(14)4x=124(15)0.8x+3=22.2(16)x-70=18(17)3.2x+1.8x=120(18)88x-25x+4=73.3(19)5.3+x=13.6(20)90x-37x-1.4=9.2(21)4.2x+0.2x+2.9=20.5(22)3x-16×3=105(23)17.1-8x=14.7(24)15.8+6x=35.6(25)24x+17×1.1=23.5(26)3x+19x+2.7=37.9(27)15x-9x-7=59(28)10+2x=130(29)4x÷74=2(30)7.3x+7.1x+3.3=104.1(31)18.2+2.4x=32.6(32)(5.8x+4.6)÷12=5.7(33)10x-26=124(34)4x-15×6=66(35)4x+29=193(36)(8.1x-9.8)÷2=19.4(37)8x-2x=66(38)2(9x-43)=40(39)51x-21x-2.4=6.6(40)4x+24x-1.8=96.2(41)7.6-0.3x=2.5(42)26x+37×0.2=15.2(43)33x-41=124(44)51x-16=86(45)81-5x=21(46)1.2x-0.9x+0.2=14.3(47)8.3-x=6.6(48)x÷4=16(49)1.6x-2.6=2.2(50)8x+5x+13=338(51)5x=12(52)(18x-20)÷44=2(53)8+16x=12.8(54)1.3+x=5.1(55)3x+19x-30=124(56)(19x+36)÷8=33(57)104÷x=4(58)8.6-x=1.6(59)0.8x÷48=0.2(60)4x-12×5=124(61)x-31=59(62)3x-5.3=5.2(63)3x-4×1.3=2.3(64)13.3-0.7x=11.2(65)11.5÷x=0.5(66)2x=18.4(67)10x÷3=2(68)5.2-1.2x=2.8(69)18x÷33=6(70)40-x=31(71)44+x=61(72)7x-2x+38=178(73)5.8-x=5(74)19x-16x-10=11(75)0.3x=9(76)x÷5=1.9(77)41x-8x+4=83.2(78)9.2-3x=7.4(79)18.2-4x=7.8(80)10x-3x=84(81)12x+15x+48=345(82)2.6x+4.8=23(83)8.7+0.2x=12.9(84)10x-6x=60(85)1x=10(86)2(2x-22)=20(87)0.4x+3.7×5=36.9(88)44x+58=190(89)24x-10x-3.6=6.2(90)7x-2x+5=100(91)2x+24×4=182(92)9x+4×50=272(93)x÷2=46(94)16.6-3.9x=4.9(95)2(27x-45)=72(96)4x+18x=110(97)2.8x-0.3x+4.3=91.8(98)(6.3x+7.5)÷32=2.4(99)5x÷7=10(100)2x=152(101)8.8÷x=0.8(102)x+13=39(103)98x-1.1=18.5(104)83x-44x+1.3=9.1(105)4.3x+2.9x-2.8=83.6(106)(10x-2)÷49=2(107)0.2x=13.6(108)5.6x-4.7x-4.1=1.3(109)2.4x+7.6x=90(110)x+5.3=13.3(111)3x+1.7x-2.8=133.5(112)193-20x=113(113)99-x=91(114)12(3.3x-4.6)=24(115)6.3x-0.4x-1.1=69.7(116)8.9x+3.9x=89.6(117)1.6÷x=0.2(118)15.1+0.3x=32.2(119)2.7x-4.5=3.6(120)8x+15x-3=204(121)5x-11=134(122)50+x=99(123)(4.5x+6.8)÷7=7.4(124)50x-4.2=15.8(125)(6.5x-2.1)÷2=34.7(126)x+3.6=7.8(127)0.4x+3×2=9.6(128)(7x-30)÷3=46(129)5x+3x-4=132(130)48+52x=152(131)x+3=3.9(132)31x÷93=0.2(133)0.7x+0.6×3=19.3(134)2x÷30=0.6(135)160÷x=32(136)3.2x-2.2x=28(137)6.6x-4.9x+3.4=17(138)5x=145(139)(10x+44)÷26=9(140)(11x-44)÷3=11(141)(1.4x+1.8)÷9=1.6(142)16x=8(143)7÷x=1.4(144)2.8x-2.3x-0.9=12.1(145)3x+25×0.2=10.1(146)10x+3x-46=123(147)16.2-1.3x=8.4(148)5.7x-0.4x-1.1=62.5(149)x+64=138(150)6x÷28=0.3(151)154-4x=110(152)19x+9x+0.2=129(153)16x+3×30=250(154)2(7.2x-7.5)=42.6(155)0.7x+9.3x+4.2=54.2(156)3(2x+10)=150(157)17x-14×0.2=2.3(158)6.8x-1.1x-1.2=10.2(159)73x+13=159(160)53x+33x-2.5=31.9(161)12.2+27x=17.6(162)15÷x=3(163)x+3.4=10.1(164)2.4x+1.2=6(165)2(x+47)=158(166)x-2.6=5(167)80÷x=16(168)(3.4x+7)÷8=8.1(169)18x+6x+11=251(170)18x-5=7.6(171)(8.4x-1.4)÷7=5.8(172)0.4x÷20=0.7(173)x÷13=10(174)6x-2.4x=18(175)122+24x=218(176)8x-5×22=34(177)6(2x+17)=138(178)7x-2×6=72(179)7.9+x=12.1(180)54x-39x+4.9=16.9(181)1.3x+2.1x-3.3=146.3(182)0.2x÷14=1.2(183)(8.8x+7.2)÷8=5.3(184)10x-4x-20=16(185)99x+22x-4=80.7(186)16.1-0.8x=8.1(187)x÷5=2.6(188)9x-6×0.5=15(189)19x+16x=105(190)18.9+50x=33.9(191)3(4x+2)=54(192)5.2÷x=0.4(193)9x+2.1=11.1(194)14(2.1x-7.5)=42(195)3.9x=7.8(196)18.6-16x=15.4(197)x-10=46(198)x-6=1.9(199)5.4-x=1.1(200)(18x-19)÷7=23(201)3.5x+0.4×46=25.4(202)9.7-x=2.2(203)4.2x+3x=158.4(204)8(11x-21)=184(205)43x+4.9=17.8(206)3x+2×2.5=15.5(207)5x-3x+30=62(208)131+21x=320(209)0.6x-1×6=6.6(210)(7x+25)÷22=4(211)13(0.2x-2.2)=39(212)1.6x-1.3x-1.4=14.5(213)8.4x-3.6x-0.3=23.7(214)x+7.1=13(215)x+21=105(216)1.8x+2.3=9.5(217)2(4x-48)=48(218)(6.5x-8.4)÷18=1.7(219)2.4x+5.6x-2.4=21.6(220)5x-4×1.9=4.9(221)70x+66x+0.3=68.3(222)(4x+48)÷16=4(223)7x+12x-44=222(224)6.7x+4.8x+3.7=130.2(225)12x+2×4.5=16.2(226)x-22=14(227)(8.9x+3.4)÷5=16.7(228)(8.8x-9.9)÷11=2.3(229)x÷18=3(230)2x-2.3=7.5(231)13x+49x+4.6=66.6(232)14x-10x+47=95(233)3.1x+8.8x+3.4=122.4(234)x÷23=0.4(235)3.8x+5.8x=96(236)3(0.4x+1.4)=40.2(237)9.3x+0.4x+2.3=21.7(238)19.9-3.5x=2.4(239)3x+2×17=94(240)9.6÷x=2.4(241)4.2-x=2.1(242)x-3=6.5(243)10(0.3x+0.5)=35(244)3.2x÷2=4.8(245)0.8x=4(246)3x+5.3=5.9(247)14÷x=1.4(248)10x-9×1.6=2.6(249)9.3+0.6x=15.3(250)11x-3x-10=94(251)x÷19=9(252)2(23x+17)=172(253)x-0.9=8.9(254)11x+14x-3.4=44.1(255)2x+4.8x-2.5=119.9(256)7(3x+3)=147(257)11x+12x=46(258)2.7x-2x=22.4(259)(7.8x-5.1)÷9=5.5(260)10x÷80=0.2(261)8x+11x-5=109(262)4.2x=16.8(263)2(20x-31)=58(264)x-31=57(265)0.2x+2.8×4=19(266)80÷x=5(267)2(4x+49)=114(268)10x+4x+8=106(269)2(6.2x+2.7)=30.2(270)124+5x=164(271)x-25=16(272)2.5x-2x+2.6=17.6(273)5.4÷x=0.6(274)191-29x=17(275)x÷17=0.8(276)1.2x-2.1=1.5(277)39x+48x+4.1=108.5(278)8x+2×65=258(279)2x+49=119(280)6-x=1.8(281)32+83x=198(282)3.5x-2.1x=19.6(283)2.1x+5.5x-0.9=82.7(284)7.9x-7.5x=2.8(285)5x=55(286)3(1.7x+9.9)=39.9(287)x÷8=18(288)93+x=135(289)14.9+3x=30.8(290)37x-18x-1=44.6(291)0.3x÷21=0.6(292)11x+3.9=8.3(293)13x+6×2.5=26.7(294)2x÷10=14(295)58-5x=13(296)9.8x-6.1x-0.9=36.1(297)87+x=92(298)13x+11x=216(299)x+2.4=5.3(300)18x-10x-22=10(301)10x-7x=45(302)0.8x÷36=0.2(303)64÷x=8(304)88x÷11=16(305)2.4x÷4=1.2(306)38x-31x-4.1=5.7(307)19x-2x=85(308)2x+11=193(309)58-x=46(310)(4.7x+3.1)÷5=2.5(311)(2x+11)÷21=3(312)9x=3.6(313)46x-5x+2.9=52.1(314)5x-3x-15=33(315)33x-11×0.3=16.5(316)0.7x-0.2×23=5.9(317)10.9+3x=13.6(318)9x-2x-8=90(319)7.2x-5x+1=12(320)x+84=148(321)(17x+18)÷2=77(322)x-48=20(323)2x+5x-0.9=67(324)6.5-x=5.7(325)2x+1.9×8=29.2(326)189÷x=21(327)3.5x+2.7x=117.8(328)9x+3×22=201(329)10x+3x=91(330)7x-3x+45=153(331)5x+2x+39=284(332)x÷8=1.5(333)4x+9×0.8=14(334)x÷6=9(335)9.4x+0.7x-4.3=76.5(336)1.8x-3.2×3=8.4(337)11.5+7x=12.9(338)68+x=111(339)0.8x+1.2x+4.3=54.3(340)(10x-4)÷31=6(341)15x-3x+0.6=17.4(342)2x=6.4(343)2(2.8x-3.7)=37.4(344)x÷12=1.2(345)4x-21=83(346)3.4x-3.3=3.5(347)2(3x+11)=142(348)16x÷4=4.4(349)55+59x=173(350)11x-8x=48(351)x÷3=34(352)19x-16x=24(353)56÷x=8(354)(6.9x-9.1)÷37=0.5(355)x-0.8=8.4(356)0.5x-0.8×2=2.4(357)7x÷4=28(358)10x-5x+17=102(359)2(3x-13)=190(360)20x÷40=2(361)2x+4x+9=51(362)x-56=34(363)64-x=53(364)6.4+1.5x=10.9(365)0.5x+5.8x-4.2=33.6(366)79-x=64(367)5x÷4=35(368)3x+10x=52(369)5x+4x+8=71(370)23x-14x-3.3=21.9(371)12+1.3x=28.9(372)3x-68×2=44(373)x+0.8=3.8(374)1.8x+1.4x+1.8=136.2(375)2x+33=139(376)8.5x-3.8x+3.8=17.9(377)5.2x-1x=25.2(378)62x-27x+3.8=17.8(379)x-5=4.9(380)16-9x=3.4(381)5x=19(382)2x-36=66(383)(4x+36)÷4=19(384)34x+35x+4.8=135.9(385)4.9x=14.7(386)56+x=118(387)3x-2.7x+1.2=7.5(388)20x+5x-4.8=117.7(389)3.2x+7.4x=21.2(390)82x-10x+1.6=59.2(391)x÷60=0.2(392)6.7-17x=1.6(393)32x+36x-3=51.4(394)6.8x-3.8x=21(395)x+9.5=12.2(396)6.5x-5.6x+2.9=12.8(397)1.2x+4.2=12.6(398)12x-6×1.1=10.2(399)2.4x+4.8×4=36(400)2x+12x+3=87(401)29x=116(402)39x+56x+4.4=108.9(403)24x+20=116(404)0.2x-3.8=3.8(405)2.1x-2.2=4.1(406)9.6+x=17.2(407)2x-10×9=60(408)5x=30(409)0.7x÷5=2.1(410)81-x=53(411)11x+8x+28=218(412)1x+5.7=8.7(413)3x=12(414)9x+2.5=20.5(415)7.9x+6.4x+1.2=44.1(416)18x=5.4(417)5x+11×0.7=17.2(418)198-30x=138(419)2x=44(420)8x-2x+45=195(421)6x-29×0.4=1.6(422)1.9x-1.4=8.1(423)11x+17x=168(424)9x-13=50(425)6x+5×23=157(426)6x+41×3=261(427)3x+4×50=281(428)0.7+x=2.7(429)8.6-x=7.7(430)2(1.6x+1.7)=35.4(431)16.2÷x=0.6(432)2.5x-1.3=3.7(433)76x+18x-0.7=18.1(434)7x+5x=24(435)51x+20=173(436)3.5x-1.4x+0.3=59.1(437)15x+3.9=21.9(438)x+18=99(439)x+77=121(440)16x÷2=3.2(441)18-x=11(442)1.5x-0.2×28=12.4(443)17x+10x-44=10(444)5.4x-4.8x=3.6(445)9.9+x=11.4(446)x-4.1=3.6(447)20x-1.2=10.8(448)0.5x+3=21.5(449)3(1.4x+0.8)=48.6(450)2x+8x=130(451)3(0.3x-5.3)=3(452)3+35x=17(453)x-2.5=4.1(454)95+x=153(455)11x-9x=34(456)(1.4x-9.5)÷3=5.7(457)79x+61x-4.7=51.3(458)(5x-20)÷20=1(459)x÷7=2(460)2.3x-2.6×2=6.3(461)(3.6x+0.4)÷11=2(462)0.6x+0.5x-4.7=55.8(463)2.1x-0.3×4=5.1(464)1.5x=4.5(465)0.3x-0.6×10=2.4(466)x+65=81(467)0.2x+3.7×4=23.2(468)106-4x=46(469)(5x-41)÷4=6(470)3(12x+11)=105(471)49x+82x+4.7=109.5(472)6(x-21)=96(473)2x+1.3=19.7(474)32x=6.4(475)34x+16=152(476)184-2x=118(477)12x+70x+2.8=19.2(478)18.4+6.3x=37.3(479)1x÷5=0.4(480)15x=150(481)9x=63(482)2.7+x=6.5(483)3(4.4x-2.7)=31.5(484)6x+15x-8=34(485)17x+16x=363(486)6x÷16=12(487)x+23=70(488)15.9-3x=6.3(489)77-x=53(490)6x-2×2.9=8(491)0.2x+5.1=17.7(492)7.9x-3.3x=23(493)x+68=86(494)x-0.4=4(495)11x-8x+15=66(496)75x-27x+3.9=23.1(497)4.3+3x=20.8(498)0.5x-2.9×2=7.7(499)10x-3×32=74(500)6x+1.4=14.6(501)8.2x-0.5x-3.8=73.2(502)2x-4.5=8.9(503)2(2.5x-7.3)=25.4(504)6(1.1x+0.6)=36.6(505)0.6x+2.5=15.7(506)11x=18.7(507)54+x=60(508)17x-6x-48=73(509)4(8.9x-8.5)=37.2(510)10x÷6=3(511)(13x+49)÷20=7(512)11x-6x-38=42(513)0.7x-2.3=6.8(514)61+x=88(515)(2.1x-2.2)÷4=2.6(516)x-5=22(517)4(5x-4)=164(518)18.2-0.2x=6.4(519)14x+5x-9=124(520)92-x=40(521)3x-2.9=2.8(522)102+24x=174(523)4x+1.1=13.5(524)x÷38=0.5(525)16x-11x+33=68(526)9.3-0.3x=4.5(527)(3x+24)÷35=3(528)87x-11=163(529)(18x-30)÷2=75(530)14x-7x=91(531)91x-74x-0.3=16.7(532)9.9-23x=3(533)2.1x+0.8×22=32.3(534)92x-34x-4.2=13.2(535)x+6=9.6(536)198÷x=22(537)15.9-9x=13.2(538)2(0.5x+2.6)=44.2(539)23x+13×0.3=10.8(540)142+2x=216参考答案(1)x=21(2)x=2(3)x=1.6(4)x=11(5)x=6(6)x=8.4(7)x=0.8(8)x=18.6(9)x=2(10)x=9(11)x=3(12)x=3(13)x=1.1(14)x=31(15)x=24(16)x=88(17)x=24(18)x=1.1(19)x=8.3(20)x=0.2(21)x=4(22)x=51(23)x=0.3(24)x=3.3(25)x=0.2(26)x=1.6(27)x=11(28)x=60(29)x=37(30)x=7(31)x=6(32)x=11(33)x=15(34)x=39(35)x=41(36)x=6(37)x=11(38)x=7(39)x=0.3(40)x=3.5(41)x=17(42)x=0.3(43)x=5(44)x=2(45)x=12(46)x=47(47)x=1.7(48)x=64(49)x=3(50)x=25(51)x=2.4(52)x=6(53)x=0.3(54)x=3.8(55)x=7(56)x=12(57)x=26(58)x=7(59)x=12(60)x=46(61)x=90(62)x=3.5(63)x=2.5(64)x=3(65)x=23(66)x=9.2(67)x=0.6(68)x=2(69)x=11(70)x=9(71)x=17(72)x=28(73)x=0.8(74)x=7(75)x=30(76)x=9.5(77)x=2.4(78)x=0.6(79)x=2.6(80)x=12(81)x=11(82)x=7(83)x=21(84)x=15(85)x=10(86)x=16(87)x=46(88)x=3(89)x=0.7(90)x=19(91)x=43(92)x=8(93)x=92(94)x=3(95)x=3(96)x=5(97)x=35(98)x=11(99)x=14(100)x=76(101)x=11(102)x=26(103)x=0.2(104)x=0.2(105)x=12(106)x=10(107)x=68(108)x=6(109)x=9(110)x=8(111)x=29(112)x=4(113)x=8(114)x=2(115)x=12(116)x=7(117)x=8(118)x=57(119)x=3(120)x=9(121)x=29(122)x=49(123)x=10(124)x=0.4(125)x=11(126)x=4.2(127)x=9(128)x=24(129)x=17(130)x=2(131)x=0.9(132)x=0.6(133)x=25(134)x=9(135)x=5(136)x=28(137)x=8(138)x=29(139)x=19(140)x=7(141)x=9(142)x=0.5(143)x=5(144)x=26(145)x=1.7(146)x=13(147)x=6(148)x=12(149)x=74(150)x=1.4(151)x=11(152)x=4.6(153)x=10(154)x=4(155)x=5(156)x=20(157)x=0.3(158)x=2(159)x=2(160)x=0.4(161)x=0.2(162)x=5(163)x=6.7(164)x=2(165)x=32(166)x=7.6(167)x=5(168)x=17(169)x=10(170)x=0.7(171)x=5(172)x=35(173)x=130(174)x=5(175)x=4(176)x=18(177)x=3(178)x=12(179)x=4.2(180)x=0.8(181)x=44(182)x=84(183)x=4(184)x=6(185)x=0.7(186)x=10(187)x=13(188)x=2(189)x=3(190)x=0.3(191)x=4(192)x=13(193)x=1(194)x=5(195)x=2(196)x=0.2(197)x=56(198)x=7.9(199)x=4.3(200)x=10(201)x=2(202)x=7.5(203)x=22(204)x=4(205)x=0.3(206)x=3.5(207)x=16(208)x=9(209)x=21(210)x=9(211)x=26(212)x=53(213)x=5(214)x=5.9(215)x=84(216)x=4(217)x=18(218)x=6(219)x=3(220)x=2.5(221)x=0.5(222)x=4(223)x=14(224)x=11(225)x=0.6(226)x=36(227)x=9(228)x=4(229)x=54(230)x=4.9(231)x=1(232)x=12(233)x=10(234)x=9.2(235)x=10(236)x=30(237)x=2(238)x=5(239)x=20(240)x=4(241)x=2.1(242)x=9.5(243)x=10(244)x=3(245)x=5(246)x=0.2(247)x=10(248)x=1.7(249)x=10(250)x=13(251)x=171(252)x=3(253)x=9.8(254)x=1.9(255)x=18(256)x=6(257)x=2(258)x=32(259)x=7(260)x=1.6(261)x=6(262)x=4(263)x=3(264)x=88(265)x=39(266)x=16(267)x=2(268)x=7(269)x=2(270)x=8(271)x=41(272)x=30(273)x=9(274)x=6(275)x=13.6(276)x=3(277)x=1.2(278)x=16(279)x=35(280)x=4.2(281)x=2(282)x=14(283)x=11(284)x=7(285)x=11(286)x=2(287)x=144(288)x=42(289)x=5.3(290)x=2.4(291)x=42(292)x=0.4(293)x=0.9(294)x=70(295)x=9(296)x=10(297)x=5(298)x=9(299)x=2.9(300)x=4(301)x=15(302)x=9(303)x=8(304)x=2(305)x=2(306)x=1.4(307)x=5(308)x=91(309)x=12(310)x=2(311)x=26(312)x=0.4(313)x=1.2(314)x=24(315)x=0.6(316)x=15(317)x=0.9(318)x=14(319)x=5(320)x=64(321)x=8(322)x=68(323)x=9.7(324)x=0.8(325)x=7(326)x=9(327)x=19(328)x=15(329)x=7(330)x=27(331)x=35(332)x=12(333)x=1.7(334)x=54(335)x=8(336)x=10(337)x=0.2(338)x=43(339)x=25(340)x=19(341)x=1.4(342)x=3.2(343)x=8(344)x=14.4(345)x=26(346)x=2(347)x=20(348)x=1.1(349)x=2(350)x=16(351)x=102(352)x=8(353)x=7(354)x=4(355)x=9.2(356)x=8(357)x=16(358)x=17(359)x=36(360)x=4(361)x=7(362)x=90(363)x=11(364)x=3(365)x=6(366)x=15(367)x=28(368)x=4(369)x=7(370)x=2.8(371)x=13(372)x=60(373)x=3(374)x=42(375)x=53(376)x=3(377)x=6(378)x=0.4(379)x=9.9(380)x=1.4(381)x=3.8(382)x=51(383)x=10(384)x=1.9(385)x=3(386)x=62(387)x=21(388)x=4.9(389)x=2(390)x=0.8(391)x=12(392)x=0.3(393)x=0.8(3