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)20x-16x+1.2=18(2)3.1+x=4.1(3)16.6-20x=8.6(4)(5x-9.6)÷3=6.8(5)16.2÷x=0.9(6)9.6-1.5x=3.6(7)16x+8×1.3=23.2(8)x+96=191(9)(18x+8)÷11=22(10)3(1.6x+2.7)=27.3(11)4.2x+4.9x-0.2=36.2(12)5(14x-4)=120(13)6x-3x=45(14)(3.4x+1.2)÷14=1.3(15)13.8÷x=0.3(16)x÷78=0.2(17)0.8x+2x-3.7=35.5(18)13.5-0.4x=3.5(19)7.8x-3.8x+0.6=48.6(20)175÷x=5(21)3.9x+1.2×13=27.3(22)(4x-7)÷21=5(23)31x+2.4=11.7(24)9x-3x=102(25)19x÷57=0.2(26)8x-29×3=17(27)(2.7x+8.7)÷3=11.9(28)18x-14x+19=47(29)x-59=17(30)x-24=16(31)80+x=136(32)5.3+x=8.1(33)9x+7x+3=307(34)2x-6×25=30(35)5.9-x=1.5(36)3.1+x=8.4(37)8x-13×0.5=5.5(38)2(6x-32)=140(39)8x-15×0.2=6.6(40)5(22x-26)=90(41)1.8x-0.2×16=13(42)27x+52x-1.9=37.6(43)15x=105(44)12.6+1.6x=28.6(45)2x+10x+20=224(46)14.9-5x=5.4(47)11x+3x+26=222(48)160-11x=116(49)33x-1.5=18.3(50)9x-4x-38=32(51)2x-8×11=96(52)x÷2=1.7(53)8x-2x-13=89(54)(3.3x-5.7)÷8=3(55)3.8x+8.1x=130.9(56)11x-5.3=7.9(57)x÷21=0.7(58)2.3x+9x=45.2(59)48+x=72(60)4x-4.2=7(61)6x-33×4=36(62)8.4x+7.1x-2.2=90.8(63)1.3x-4.8=1.7(64)3.4x+0.9x+0.7=48(65)85x-26x-1.6=39.7(66)78x-63x-3.1=13.4(67)23(0.6x-4.3)=39.1(68)4x-11×0.2=17.4(69)35x-44=26(70)x÷4=34(71)x+8=24(72)9.6+2.6x=25.2(73)11.5+50x=31.5(74)8x+7x+15=345(75)11÷x=1.1(76)0.7x+0.6x+0.7=115.1(77)x+43=46(78)14x+3×1.3=22.1(79)8.2+2.1x=12.4(80)19x-12x=49(81)2.9x-0.3×9=3.1(82)6.1x+9.3x-0.8=107(83)88÷x=2(84)x+6.8=11.6(85)(10x-28)÷29=8(86)12.6+41x=29(87)20x-50=110(88)9x+11x-28=92(89)2(24x+18)=132(90)192-85x=22(91)(7x+41)÷12=18(92)1.6x-4.3=14.9(93)8.5x-8x+1.9=6.4(94)5.4x=10.8(95)4.1x+0.4×27=27.2(96)0.5x+2.4=20.4(97)5.2x+5.9x=122.1(98)168÷x=4(99)8x+13x-26=289(100)194+2x=340(101)7x+19x-2=102(102)(7.3x-2.1)÷8=11.6(103)4(3.5x-8.4)=22.4(104)(x-5.4)÷3=2.2(105)x÷11=0.7(106)36x+21x+3.9=89.4(107)19-8x=15(108)8(25x-39)=88(109)8(0.3x+4)=48.8(110)1.7x-0.7×20=4.7(111)2.2x÷11=0.6(112)2.5x÷5=3.5(113)8x+10x+6=366(114)(11x+22)÷11=26(115)7x+3.4=23(116)8x-2x-14=82(117)2x+3x-9=106(118)6x-4×7=74(119)1.9x-3.7=3.9(120)(8.1x+5.1)÷38=1.2(121)189-7x=140(122)3.2x=12.8(123)4x-3×0.4=2.4(124)5.6-6x=3.2(125)6.7-1.1x=1.2(126)x-7.2=1.9(127)x-35=20(128)13x-3x+9=119(129)1.7+x=7.6(130)4x-2x-12=68(131)6x-6×2=144(132)x+7.2=7.5(133)71+x=167(134)4x÷12=0.8(135)70x+12x-3=38(136)2x÷4=27(137)x÷47=0.3(138)14÷x=0.4(139)18x+14x-4=220(140)5.7+x=9.5(141)0.5x+3.8=21.8(142)8x+13x-2.1=31.5(143)26x-4×29=14(144)15.5-3x=2(145)4x=5.2(146)21x+53x+4.5=41.5(147)2(0.5x-4.4)=40.2(148)19.4+0.2x=29.6(149)9+x=22(150)5.4x-3.6x=32.4(151)2-x=1.1(152)x-4.6=5.2(153)2(16x-35)=154(154)12x+1=14.2(155)19.3-2x=18.7(156)12x+2x-38=74(157)5(2x+3)=155(158)2x+3.8=20.8(159)x+7.8=17.1(160)10x-2x=104(161)0.2x+4.3=5.9(162)1x=10(163)59-5x=49(164)72÷x=3(165)89-x=79(166)3.2x-1x-2.5=10.7(167)x÷5=33(168)x÷3=18(169)x+8.6=11(170)x-1.6=6.6(171)x-1=2.9(172)57x+90x+4.5=48.6(173)2(0.4x-3.9)=14.6(174)x-7=16(175)(17x+45)÷38=7(176)x÷3=47(177)51x-12x-3.5=31.6(178)5.1x-2.5x=41.6(179)6x+3x+2.5=77.2(180)x÷3=16(181)0.8x+3.1×2=18.2(182)23x+52×3=340(183)144÷x=48(184)x+2.9=5.9(185)32x=160(186)4(x+35)=152(187)93+3x=99(188)3(0.2x+3.8)=33.6(189)6x+6.8x+2.4=156(190)6.1x-0.4x-2.7=60(191)x-11=70(192)11x+1.6=18.1(193)4(0.5x-8)=50(194)10.4+1.1x=22.5(195)14x-10x=44(196)3(0.4x+4.4)=19.2(197)19x+5x=48(198)4.2x-1.7x+0.2=25.2(199)6x+15×12=210(200)7.7x-7.1x-1.2=6(201)52+6x=190(202)30x-23x-3.2=10.1(203)x+63=159(204)71-x=34(205)3.8x+1.5x+0.6=11.2(206)17x-8x=99(207)2x=11.8(208)3x=12.9(209)1.2x-0.2x-0.9=32.1(210)9x+23×0.5=30.4(211)81x-52x+4.9=36.8(212)32-4x=20(213)18x+17x-41=309(214)0.9x-0.4x+1.7=43.7(215)0.8x-0.4x+4.9=11.7(216)21x+6x-2.9=91.6(217)1.8x+0.4x=22(218)1.7x+1.1=7.9(219)6.8x+7.9x-0.8=116.8(220)8.9+x=16.1(221)51x+23x+4.9=19.7(222)5.5x-2.8x=48.6(223)14x+18x=256(224)3.3x-0.4×27=9(225)120÷x=8(226)4x=12(227)34x-4x+4.8=19.8(228)x÷14=8(229)21x+25=67(230)24x-7×10=50(231)185-2x=35(232)(4.3x+2.8)÷6=6.2(233)1.8x+1.6x=10.2(234)92x-41x+1.6=52.6(235)x-3.6=2.9(236)3x+5x+24=304(237)42x+23x+4.2=114.7(238)77x-23x-3.1=34.7(239)89-x=82(240)(2.9x-7.3)÷25=1.1(241)3.9x+0.5×37=38(242)5x=30(243)38x=11.4(244)5x-2×1.3=9.9(245)3x+38=179(246)16x-3x+11=102(247)18x-4x=126(248)18.1-0.4x=16.5(249)8x÷26=4(250)61-x=55(251)5.1x+0.8x-2.9=38.4(252)54-x=36(253)12.2-1.6x=1(254)15x-11x=52(255)0.5x=6(256)3x+8.8x-1.5=57.5(257)68x+79x-4.2=142.8(258)(11x-19)÷8=21(259)5.7x-4.9x=5.6(260)8.3+x=13.9(261)1.8÷x=0.2(262)8.5x-1.3x-2.2=77(263)(4.3x-6)÷8=5.7(264)15x-10x+5=40(265)14x=84(266)21x=105(267)2x=4(268)59x-3x+2.7=81.1(269)(2.3x-7.7)÷12=0.7(270)11.9+0.3x=15.2(271)12.9+20x=16.9(272)19.9-1.8x=7.3(273)10x-5x-8=77(274)6x+3x+40=220(275)1.4x+1×9=13.2(276)0.4x-3.3×2=3(277)6x-24=96(278)101-25x=26(279)87x-5.8=11.6(280)4(14x-24)=184(281)0.2x=6.4(282)30x÷15=0.8(283)(5x-15)÷4=5(284)170+3x=254(285)2(0.4x+7.8)=49.2(286)10x=140(287)x+90=175(288)1.9+25x=9.4(289)(8x+8.4)÷26=3.4(290)6x+14=56(291)3.6-x=2.8(292)(2.7x+9.6)÷2=23.7(293)1.1x-1.2=8.7(294)7.6+x=12.8(295)8(10x-6)=192(296)x÷13=1.4(297)9x+50=248(298)7x÷28=0.4(299)3x+2x-47=238(300)(2x+42)÷5=14(301)4.6x-4x+2.9=9.5(302)3.4+46x=21.8(303)13x-7x-27=57(304)x+83=171(305)29x+27×0.2=19.9(306)71x-18x-3.6=28.2(307)25x-6x+4.9=27.7(308)16x-1.8=7.8(309)(8x-8.2)÷2=19.9(310)1.9x+1.6×11=32.8(311)1.9x+3.3x+0.7=68.3(312)36x-10=98(313)12x-6x+9=21(314)1.5x÷5=2.4(315)2x+19×4=254(316)8x+2x=240(317)5.5x÷15=1.1(318)7+53x=22.9(319)x+3.1=9.7(320)18x-2x-36=60(321)11x-2×3=5(322)4x÷20=0.6(323)8x=16(324)9.8x=19.6(325)(8x-9)÷3=21(326)2(4x+11)=62(327)2x+45=105(328)3.4x+6.2x+4.7=81.5(329)2+6x=14(330)88-x=56(331)3.5x+5.7x-2.4=34.4(332)6x=60(333)29+x=83(334)7(6x-12)=84(335)0.3x÷4=3(336)14÷x=2.8(337)14.4-0.2x=11(338)141+3x=318(339)26x÷12=13(340)8(0.2x-8.5)=10.4(341)88x+7x-4.7=33.3(342)33x=9.9(343)5x+18x=69(344)11x+2×91=237(345)14x-7x-34=50(346)33x-3.6=16.2(347)x+65=160(348)150-10x=10(349)(4x+6.4)÷4=11.6(350)10x÷5=1.6(351)5x-1.6=2.4(352)6x=18(353)6.2x-5.6x=5.4(354)11x+18x-3.6=115.3(355)4.5÷x=0.9(356)2x÷30=4(357)(7x+49)÷4=21(358)12x+8×1.7=25.6(359)6(x+0.3)=25.8(360)6x-3x-1=13.7(361)2x-1.5x+0.2=24.7(362)12x+5x+43=264(363)4.8x-2x=44.8(364)37x-31=80(365)14x÷7=1.8(366)7.8x-6.7x-0.4=2.9(367)6x=114(368)2(3.1x+3.4)=31.6(369)x-19=28(370)182÷x=26(371)58x-7x+0.9=77.4(372)1.2x+1.1x+1.2=81.7(373)4.8x-1.7×2=11(374)15.4+2x=21(375)46+12x=166(376)2(1.9x-1.4)=31.4(377)7.7-10x=5.7(378)6÷x=0.5(379)x÷32=0.4(380)1.5x+4.5=19.5(381)17x-2x+18=123(382)2x+2.1=5.9(383)36-x=31(384)0.7x-4.5=13(385)7.1-x=4.1(386)7-x=2.8(387)12÷x=1.2(388)3x-4.2=7.5(389)(5x-32)÷3=16(390)2x+53×2=238(391)50x÷10=20(392)76-x=55(393)15.1+25x=30.1(394)16x-2×3.1=8.2(395)6(7x-16)=156(396)10.9-0.3x=8.2(397)10(0.2x-5.9)=37(398)99-x=42(399)6.7x-3.9x+4.2=9.8(400)17.5-18x=3.1(401)1.4x÷21=0.6(402)0.2x÷32=0.6(403)5.6x-5x-4.7=4.3(404)8.4x-6.3x=10.5(405)6(5x+13)=168(406)2.5+97x=21.9(407)10x-2x+33=145(408)58x-18x-3.2=44.8(409)3.6x-2.8x=2.4(410)x÷30=0.4(411)12x+2×2.2=15.2(412)0.3x+2.8=21.7(413)2x-5.9=2.1(414)7.2-23x=2.6(415)17x+19=104(416)0.5x-1.2×7=1.6(417)4x÷5=12(418)13x+3x=32(419)9x-3x+24=84(420)2x=20(421)20x=14(422)x-4=48(423)40x-8×1.5=8(424)32x-11x+3.2=11.6(425)(3.5x+2.7)÷8=6.9(426)(10x-26)÷13=8(427)0.2x-2.9=15.9(428)2.7x-2.4x=10.8(429)79x+2.1=17.9(430)x+4.8=8.8(431)2x+15=153(432)18x+41=185(433)35x+98x-3.6=116.1(434)27+66x=159(435)(7.4x+1.2)÷26=0.9(436)2(2x+35)=114(437)4x+14×3=130(438)x-0.7=7.5(439)2.1x+3.8x=88.5(440)2(10x+11)=122(441)6x-3×0.7=5.1(442)14.2+0.5x=31.2(443)5.5x-5.7=5.3(444)4x÷28=0.6(445)6.8x-3.1x-4.8=6.3(446)2(12x+3)=198(447)x+3.7=11.2(448)(16x+34)÷2=33(449)7x+3.9=17.9(450)(4x-36)÷4=5(451)88x÷44=4(452)x-0.2=4.2(453)12x=3.6(454)x÷22=3(455)7.2x+3.3x=52.5(456)95+3x=203(457)7.9x-3.3x+3=53.6(458)27+x=97(459)5x+5.5=10(460)32x÷6=1.6(461)1.5x+5.1=24.6(462)10x-7×14=52(463)3x+8x=231(464)2.8x÷42=0.4(465)12x+2×2.2=22.4(466)2.9x+1.6=16.1(467)9.7-x=5.8(468)8.5x+4.5x-3.2=35.8(469)x-4.3=2.6(470)84+17x=186(471)84÷x=42(472)0.9x+0.5×38=37.9(473)11.2+0.6x=27.4(474)x÷4=2.8(475)x÷22=4(476)99x-65x-1.6=22.2(477)9x+40×0.2=15.2(478)2x+14x=160(479)2(x+8)=88(480)0.7x+1.2×13=28.9(481)37+x=95(482)0.8x+3.9x=61.1(483)0.3x-0.9×2=7.5(484)9.4x-7.6x-3.3=9.3(485)x-63=18(486)14x+47=215(487)2x+15x=153(488)7x-2x+9=39(489)54x+39x+3.1=86.8(490)12x÷3=40(491)0.4x+1.6x=58(492)4x+6x=240(493)12x-45=147(494)14x-7x-24=67(495)78÷x=6(496)3(0.3x+4.7)=31.2(497)6(1.4x+5.2)=48(498)4x+17x-3=228(499)x+20=100(500)3.4x+2.5x+1=54.1(501)16(0.9x-7.9)=46.4(502)8x+4×48=336(503)(13x+21)÷6=10(504)13x+6x+12=164(505)15x-28=32(506)5x+83×2=221(507)36x-12x+3.7=49.3(508)6.7-x=5.9(509)0.6x-4.8=6(510)0.2x-5.9=8.1(511)4x+5.1=17.1(512)3x+8×0.3=10.5(513)6x+7×26=374(514)x+5=11.3(515)58x÷29=6(516)x÷5=18(517)8.8-x=8.1(518)6.2x=12.4(519)57-8x=33(520)2.8x+2.9×4=17.2(521)x+39=76(522)62x+11x+0.6=37.1(523)(11x+22)÷13=11(524)32x+30x+2.4=76.8(525)0.4x+0.6x+0.2=45.2(526)27+x=77(527)12.4-0.2x=7.2(528)3.6+x=6.5(529)14x-7x=28(530)x-46=10(531)0.3x÷7=1.8(532)(14x-27)÷3=5(533)1.7x-0.6×12=6.4(534)40+x=83(535)3x+10x-4.2=89.4(536)100x-43=157(537)8.3-x=6.8(538)(3.3x-4.8)÷2=17.4(539)2x-29=123(540)x-1.8=1.9参考答案(1)x=4.2(2)x=1(3)x=0.4(4)x=6(5)x=18(6)x=4(7)x=0.8(8)x=95(9)x=13(10)x=4(11)x=4(12)x=2(13)x=15(14)x=5(15)x=46(16)x=15.6(17)x=14(18)x=25(19)x=12(20)x=35(21)x=3(22)x=28(23)x=0.3(24)x=17(25)x=0.6(26)x=13(27)x=10(28)x=7(29)x=76(30)x=40(31)x=56(32)x=2.8(33)x=19(34)x=90(35)x=4.4(36)x=5.3(37)x=1.5(38)x=17(39)x=1.2(40)x=2(41)x=9(42)x=0.5(43)x=7(44)x=10(45)x=17(46)x=1.9(47)x=14(48)x=4(49)x=0.6(50)x=14(51)x=92(52)x=3.4(53)x=17(54)x=9(55)x=11(56)x=1.2(57)x=14.7(58)x=4(59)x=24(60)x=2.8(61)x=28(62)x=6(63)x=5(64)x=11(65)x=0.7(66)x=1.1(67)x=10(68)x=4.9(69)x=2(70)x=136(71)x=16(72)x=6(73)x=0.4(74)x=22(75)x=10(76)x=88(77)x=3(78)x=1.3(79)x=2(80)x=7(81)x=2(82)x=7(83)x=44(84)x=4.8(85)x=26(86)x=0.4(87)x=8(88)x=6(89)x=2(90)x=2(91)x=25(92)x=12(93)x=9(94)x=2(95)x=4(96)x=36(97)x=11(98)x=42(99)x=15(100)x=73(101)x=4(102)x=13(103)x=4(104)x=12(105)x=7.7(106)x=1.5(107)x=0.5(108)x=2(109)x=7(110)x=11(111)x=3(112)x=7(113)x=20(114)x=24(115)x=2.8(116)x=16(117)x=23(118)x=17(119)x=4(120)x=5(121)x=7(122)x=4(123)x=0.9(124)x=0.4(125)x=5(126)x=9.1(127)x=55(128)x=11(129)x=5.9(130)x=40(131)x=26(132)x=0.3(133)x=96(134)x=2.4(135)x=0.5(136)x=54(137)x=14.1(138)x=35(139)x=7(140)x=3.8(141)x=36(142)x=1.6(143)x=5(144)x=4.5(145)x=1.3(146)x=0.5(147)x=49(148)x=51(149)x=13(150)x=18(151)x=0.9(152)x=9.8(153)x=7(154)x=1.1(155)x=0.3(156)x=8(157)x=14(158)x=8.5(159)x=9.3(160)x=13(161)x=8(162)x=10(163)x=2(164)x=24(165)x=10(166)x=6(167)x=165(168)x=54(169)x=2.4(170)x=8.2(171)x=3.9(172)x=0.3(173)x=28(174)x=23(175)x=13(176)x=141(177)x=0.9(178)x=16(179)x=8.3(180)x=48(181)x=15(182)x=8(183)x=3(184)x=3(185)x=5(186)x=3(187)x=2(188)x=37(189)x=12(190)x=11(191)x=81(192)x=1.5(193)x=41(194)x=11(195)x=11(196)x=5(197)x=2(198)x=10(199)x=5(200)x=12(201)x=23(202)x=1.9(203)x=96(204)x=37(205)x=2(206)x=11(207)x=5.9(208)x=4.3(209)x=33(210)x=2.1(211)x=1.1(212)x=3(213)x=10(214)x=84(215)x=17(216)x=3.5(217)x=10(218)x=4(219)x=8(220)x=7.2(221)x=0.2(222)x=18(223)x=8(224)x=6(225)x=15(226)x=3(227)x=0.5(228)x=112(229)x=2(230)x=5(231)x=75(232)x=8(233)x=3(234)x=1(235)x=6.5(236)x=35(237)x=1.7(238)x=0.7(239)x=7(240)x=12(241)x=5(242)x=6(243)x=0.3(244)x=2.5(245)x=47(246)x=7(247)x=9(248)x=4(249)x=13(250)x=6(251)x=7(252)x=18(253)x=7(254)x=13(255)x=12(256)x=5(257)x=1(258)x=17(259)x=7(260)x=5.6(261)x=9(262)x=11(263)x=12(264)x=7(265)x=6(266)x=5(267)x=2(268)x=1.4(269)x=7(270)x=11(271)x=0.2(272)x=7(273)x=17(274)x=20(275)x=3(276)x=24(277)x=20(278)x=3(279)x=0.2(280)x=5(281)x=32(282)x=0.4(283)x=7(284)x=28(285)x=42(286)x=14(287)x=85(288)x=0.3(289)x=10(290)x=7(291)x=0.8(292)x=14(293)x=9(294)x=5.2(295)x=3(296)x=18.2(297)x=22(298)x=1.6(299)x=57(300)x=14(301)x=11(302)x=0.4(303)x=14(304)x=88(305)x=0.5(306)x=0.6(307)x=1.2(308)x=0.6(309)x=6(310)x=8(311)x=13(312)x=3(313)x=2(314)x=8(315)x=89(316)x=24(317)x=3(318)x=0.3(319)x=6.6(320)x=6(321)x=1(322)x=3(323)x=2(324)x=2(325)x=9(326)x=5(327)x=30(328)x=8(329)x=2(330)x=32(331)x=4(332)x=10(333)x=54(334)x=4(335)x=40(336)x=5(337)x=17(338)x=59(339)x=6(340)x=49(341)x=0.4(342)x=0.3(343)x=3(344)x=5(345)x=12(346)x=0.6(347)x=95(348)x=14(349)x=10(350)x=0.8(351)x=0.8(352)x=3(353)x=9(354)x=4.1(355)x=5(356)x=60(357)x=5(358)x=1(359)x=4(360)x=4.9(361)x=49(362)x=13(363)x=16(364)x=3(365)x=0.9(366)x=3(367)x=19(368)x=4(369)x=47(370)x=7(371)x=1.5(372)x=35(373)x=3(374)x=2.8(375)x=10(376)x=9(377)x=0.2(378)x=12(379)x=12.8(380)x=10(381)x=7(382)x=1.9(383)x=5(384)x=25(385)x=3(386)x=4.2(387)x=10(388)x=3.9(389)x=16(390)x=66(391)x=4(392)x=21(393)x=0.6(394)x