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)3.4x-0.2×30=4.2(2)17x+22×2=95(3)40x+93x+1.1=94.2(4)13÷x=1(5)0.8x+0.7x-2.6=117.4(6)20x+4×2.4=25.6(7)8x+2x=170(8)49x-22x+0.3=16.5(9)48x=144(10)x+3.9=13.7(11)0.2x-1.9=14.5(12)27(3.6x-9.3)=40.5(13)3.8+x=13.7(14)9x+17x+47=333(15)4x+51=123(16)37x+12×0.4=12.2(17)2(14x-31)=50(18)x+2.2=4.7(19)11.2+25x=26.2(20)4.7x+2.9x=129.2(21)0.2x-4.2=6.8(22)15x+18x+35=101(23)27x+8×0.3=15.9(24)(10x+20)÷5=8(25)1.1+0.2x=10.3(26)x+50=93(27)54x-32x-3.7=33.7(28)3(x+2)=33(29)3.6x+8.8x+2.5=138.9(30)2x=86(31)18.6-0.8x=12.2(32)x+95=138(33)6.3+12x=19.5(34)x÷8=2.4(35)7.2x+9.3x+0.6=83.1(36)(11x-11)÷22=7(37)7(0.8x-3)=18.2(38)(5.9x+5.6)÷16=3.3(39)3x+8x=253(40)x÷3=12(41)4.5x-2.2x-1=40.4(42)8.2-0.3x=1.3(43)9.3+0.2x=17.1(44)8x+10×0.2=12.4(45)4.3x+0.3×12=20.8(46)5x+12x=272(47)(11x-35)÷5=15(48)11x+2x=221(49)0.4x+0.3×17=5.9(50)3x÷5=33(51)0.6x-0.3x-4.6=21.5(52)18.6÷x=0.3(53)57+8x=129(54)x+6.5=9.7(55)x÷10=11(56)88÷x=22(57)9.9x-6.3x-0.3=32.1(58)9x-2.3=17.5(59)7.8-x=3.9(60)7x=91(61)18x÷9=14(62)6.5x-3.6x=23.2(63)16x-13x=24(64)3.9x+3.4x+0.6=161.2(65)x÷13=7(66)6x+5.5=17.5(67)15x-10x+1.8=11.8(68)0.2x=4(69)36x÷9=1.6(70)3.9x-0.5x+0.2=85.2(71)2(0.3x-1.6)=15.4(72)7x+12×0.8=25.7(73)2(4x-49)=102(74)2x-4.9=1.1(75)91-x=80(76)36x+41x+2.8=164.5(77)16x+22x-1.7=116.1(78)78-x=52(79)9x÷63=3(80)19x-10x-19=35(81)27x+2.3=15.8(82)(11x-22)÷21=11(83)1.3+4.4x=18.9(84)44x÷22=6(85)7.9x-6.9x=3(86)(7.2x-3.7)÷29=3.1(87)104-6x=74(88)9x-11×3=111(89)14.1-33x=7.5(90)x-6=1.3(91)13(0.4x-8.1)=45.5(92)4(0.7x-0.5)=14.8(93)15x-4x+6=28(94)2(9.9x+4.3)=48.2(95)x-3.5=5.3(96)0.3x=2.7(97)2.9+93x=21.5(98)5x-3.4x+3.6=6.8(99)x÷31=2(100)2.9x-1.6x-1.6=28.3(101)(9x-12)÷39=5(102)(10x+25)÷5=51(103)10x-3x-36=97(104)0.3x+4.6×3=22.5(105)7.5x-3.4=11.6(106)x-48=29(107)(6.7x+8.2)÷19=2.9(108)5x+3.7=7.2(109)88-x=74(110)7x-42=77(111)1.1x-0.2x=47.7(112)7.1x-4.1x-4.8=28.2(113)85÷x=17(114)80÷x=16(115)184-32x=56(116)56x-41x-4.5=6(117)0.2x+3=17.4(118)8.2+10x=28.2(119)3x-18=60(120)2.7x-0.5×12=10.2(121)3.6+x=8.2(122)78+x=95(123)86x-9x+1.5=32.3(124)126÷x=14(125)89+x=142(126)121-2x=33(127)0.6x-0.4×20=2.2(128)2x-2×29=62(129)147-9x=129(130)5+x=44(131)24x÷12=14(132)1x=13(133)7.1x-2.1x-4.9=35.1(134)(1.4x+6.2)÷24=0.9(135)2x+48=230(136)2.9x+3.9×2=13.6(137)14x-12x=22(138)5(3x-23)=140(139)5x+11x-32=176(140)9.9-x=7.7(141)42x=8.4(142)2(1.3x+4.4)=42.6(143)19x+7x+8=112(144)x-4.4=1.5(145)0.4x-0.2x+1.2=20.8(146)0.4x÷28=0.6(147)(3.5x-9.4)÷2=5.8(148)4x-2x+29=77(149)16.4-0.8x=1.2(150)15x-6x+41=59(151)22x-14=140(152)5(18x-34)=100(153)26x-6x+3.9=49.9(154)84+10x=164(155)2x+5x=154(156)x-56=38(157)11x+9x+47=407(158)5x-3x=50(159)1.8x-0.4x+0.3=52.1(160)8x+10x+40=256(161)9.2+10x=27.2(162)1.9+1.4x=18.7(163)0.6x-3.5=16.3(164)6.4x-1.7x=28.2(165)10.2÷x=0.2(166)x+3.1=4.8(167)7.3x-5.7x=6.4(168)15x-1.8=1.2(169)46x-40×0.4=2.4(170)12x+19x-26=160(171)x-4.7=1.2(172)7x+2×3.1=24.4(173)3x+14=173(174)8.4x+5.4=22.2(175)(2x+4.6)÷2=17.3(176)11x+19×0.5=24.9(177)6.3x=18.9(178)2(13x-27)=76(179)0.2x+1.5×5=15.7(180)5.8-x=1.9(181)x+6.5=10.6(182)x-62=20(183)87x-13x+1.8=46.2(184)x+5=91(185)x÷22=0.8(186)3.8x-2x=18(187)18x+3x=84(188)13x=9.1(189)17x-11x-19=41(190)33x=13.2(191)4.3x+4.7=21.9(192)(6.2x-5.2)÷16=5.1(193)7x-3x+38=70(194)5x+19x-11=37(195)191-6x=167(196)5x-4.1=1.9(197)7.4+x=11.5(198)70x-45x-1.4=21.1(199)11x-5x-26=22(200)40+x=82(201)2x-4×1.3=1.8(202)129+15x=264(203)17x-2x-5=70(204)1x+1.3=21.3(205)63+39x=180(206)15x-1=2(207)5(x-3)=110(208)(3.2x-4.1)÷7=1.7(209)9.7-0.8x=4.1(210)x-5=78(211)(4.3x-8.3)÷2=2.3(212)x+9.1=17(213)x÷4=3.3(214)90÷x=9(215)x+15=113(216)0.3x-1.2×3=9.9(217)8(x+23)=200(218)9x÷2=3.6(219)3.7+x=8.4(220)(12x+18)÷2=117(221)2x=4(222)17x-10x=56(223)0.2x÷3=1.8(224)8x+12x-5=215(225)4.4-x=4(226)88+2x=166(227)10.4÷x=1.3(228)2x=68(229)16x+42x+4.9=62.9(230)44x=132(231)1.7x+0.5×31=25.7(232)14-26x=3.6(233)x+7.3=15.3(234)2x=28(235)18÷x=0.4(236)(3x-45)÷6=5(237)14.9+5.5x=31.4(238)6x-4.7x+3.8=23.3(239)24x÷4=1.8(240)0.2x+5.7=11.9(241)7x=182(242)32-4x=20(243)x-1.8=2(244)19.3-2x=1.7(245)8x÷12=1.6(246)3(x+44)=153(247)7x-5x+22=48(248)1x+1.1x-0.2=123.7(249)8.4x+0.5x+3.3=65.6(250)29x-6×16=78(251)11x+16x+41=95(252)0.6x-0.2×6=17.4(253)2.6-x=1.4(254)x÷48=0.3(255)0.6÷x=0.2(256)2x=160(257)5.5x-1.3=9.7(258)8.1+0.3x=17.1(259)18x-6×1=4.8(260)79x=15.8(261)(3.9x+9)÷7=2.4(262)3.7x-5.9=12.6(263)19x-5x-3.3=35.9(264)6.9+33x=13.5(265)11x-2x-36=90(266)2(9x+46)=146(267)3x+42×4=249(268)2(17x+7)=184(269)10x-2x+42=66(270)(12x+48)÷7=36(271)23x-20×4=104(272)x-5=25(273)10x+41x-0.2=81.4(274)7x-2×7=154(275)76x+71x-2=42.1(276)8.9x+4.8x=137(277)8.3+8.2x=24.7(278)x÷39=5(279)1.5+x=3.1(280)0.9x-5=3.1(281)0.2x÷7=0.4(282)(6.9x-6.6)÷30=3(283)35x-2.1=8.4(284)7x-5×1.8=1.5(285)91-x=55(286)0.7x+5.7=21.1(287)99x+63x-3.1=110.3(288)3(16x+3)=105(289)161÷x=7(290)5x-3x+8=60(291)2(1.1x-5.5)=26.4(292)21x+2=6.2(293)10x-7x-19=20(294)3x÷9=1.2(295)7.1x-3.4x-1.8=50(296)179+4x=191(297)x+21=105(298)84-x=13(299)24x-2×25=94(300)21x=10.5(301)6x+4x=210(302)1.1x=6.6(303)3.2x+6.6x=137.2(304)7.2x-2.3x=49(305)9.6-x=1.9(306)63x÷7=2.7(307)2x+5x-6=134(308)x-1.8=4.1(309)3.3-x=3(310)x+28=93(311)19.1+3x=21.8(312)6-2x=1.8(313)6x+10×11=224(314)1.3x-0.5×28=1.6(315)1x=3(316)9.3x+8.2x-1.8=138.2(317)1.9x-0.7x+1.7=42.5(318)8.1x-2.8x-2.6=39.8(319)9x÷9=2(320)8.6-1.2x=5(321)0.3x-1.3×5=1.6(322)85-x=47(323)17x-2.7=12.6(324)8x-3x+41=131(325)3x+23×5=247(326)14.5-16x=3.3(327)1x-0.8x=12(328)22+x=82(329)2(6x+25)=98(330)2(13x+35)=174(331)2(1.4x-6.3)=21(332)3.1x+1.1x+4.7=34.1(333)37x+22x-3.5=155.8(334)x÷2=2.9(335)4.5x+3.9=17.4(336)2(x+8)=108(337)2x+3x-44=36(338)25x-25=125(339)3.5x+2.1×3=16.8(340)0.8x=9.6(341)120+14x=162(342)171+4x=247(343)6.8x+2x+3.5=65.1(344)x+18=79(345)2x-2×83=30(346)24x+5.1=12.3(347)22x+39×5=349(348)8x-5x=48(349)5x+0.4x=54(350)10x-8x+14=46(351)6x+38=146(352)14x+8x-12=230(353)3(0.4x+2)=12(354)7(0.4x+2.8)=42(355)16x+2x=108(356)(6.4x+6.3)÷5=11.5(357)7.6x+7.1x-1.7=71.8(358)13÷x=0.5(359)(9.2x-5)÷22=2.7(360)x-29=17(361)6x-2x=80(362)1.2x-1×18=1.2(363)x÷6=3(364)x+4.7=11(365)6x÷3=4(366)71+x=88(367)7x+5x+19=55(368)19x+45x-1=43.8(369)x÷46=0.4(370)14-0.2x=8.2(371)26x-23x+1.7=9.8(372)5x-16×0.4=4.1(373)3x-1.6x+2=17.4(374)8.4x÷28=0.6(375)7(2x-21)=77(376)12x-12×0.9=4.8(377)6.6-x=4.7(378)0.2x-2.4=2.4(379)0.4x+3.9x-2.7=79(380)x-6.9=2.8(381)11x-7x-2.9=23.1(382)14x-4x=50(383)0.3x=17.4(384)0.6x+2x+1.7=108.3(385)39+x=63(386)199-72x=55(387)60÷x=4(388)14x-10x-7=41(389)11-6x=5(390)12.2+18x=24.8(391)18x-11x=56(392)78x-62x+3.8=21.4(393)0.5x+2.5x-2.6=63.4(394)6x+3x+24=303(395)(0.9x+8.1)÷2=6.3(396)16(2.8x-4.3)=20.8(397)7x-4.9=8.4(398)178-38x=26(399)15(0.5x-3)=15(400)86+x=115(401)5x-13=107(402)11x+3.1=11.9(403)43x+3.7=12.3(404)12x+23x+2.3=79.3(405)3.1x-2.6x+4.3=12.8(406)6x÷3=0.8(407)76x-65x+1.6=7.1(408)33x+35x+3.6=112.4(409)188-2x=156(410)9.6-1.1x=3(411)x÷5=33(412)2.3x+8.8x=111(413)15.1+8x=33.5(414)(8x-8)÷25=8(415)16x+75x-3.3=42.2(416)9x=9.9(417)3x+55=94(418)2(2.2x+3)=14.8(419)(9x+18)÷10=9(420)x+84=119(421)50-x=12(422)83x+34x-2.3=126.4(423)4(0.3x+6.2)=27.2(424)8x-28×0.3=8.4(425)12x÷14=0.6(426)7x+10x-25=315(427)11.2÷x=1.6(428)4x-3.6x=5.6(429)0.6x-0.4×11=5.8(430)5.6x+0.3x=23.6(431)2x÷4=45(432)4x-46=126(433)(18x-18)÷8=27(434)3x+44=200(435)(13x+24)÷3=47(436)6.1x+4.1=16.3(437)x-2.3=7.5(438)8.9x+3.2=21(439)(3x-49)÷16=2(440)(9.5x-4.5)÷15=3.5(441)11x+11×0.9=12.1(442)96-x=20(443)37x=7.4(444)18x+4.1=7.7(445)x÷66=0.3(446)2(7x+44)=116(447)0.9x+1x+4=53.4(448)17x+9x+27=79(449)3x-3=8.4(450)18x=18(451)x+55=122(452)6.9+x=8(453)6x+28×0.4=13.6(454)14x-11×0.6=1.8(455)7x+2.9=7.8(456)37x-4x-4.5=15.3(457)2.3x+0.3x-4.2=58.2(458)10.3-5x=2.3(459)2x-53=83(460)2(5.5x+0.3)=22.6(461)11x+27x+2.7=82.5(462)3x+2.2×6=31.2(463)0.3x+1.3x+1=113(464)(4.6x-2.6)÷2=21.7(465)2x÷18=10(466)14x+2×93=228(467)x÷18=5(468)5(0.8x+4.6)=43(469)(10x+40)÷10=17(470)2.5x÷40=0.5(471)18.8-2.5x=1.3(472)8.7-2x=6.9(473)1.5x-1.2=6.3(474)8x-6x-1=7.6(475)6.8x+9.6x=98.4(476)15x÷45=4(477)104÷x=8(478)3x+19×2=101(479)1.2x+5.1x=113.4(480)37x-12=136(481)5.6+29x=23(482)17.8-0.5x=7.3(483)x÷11=1.7(484)2x-18×5=94(485)29x-5x+0.7=67.9(486)2.7x+0.2×6=14.7(487)(3.2x+5.5)÷3=6.1(488)x-23=55(489)(17x+25)÷5=39(490)5.6+x=15.5(491)3.1+x=7.7(492)13x-4x-13=50(493)12.5+3.3x=25.7(494)0.3x÷6=1.6(495)4x-2x=38(496)46x-5x-3=29.8(497)14x+55=139(498)2x÷33=4(499)x-45=31(500)1.8x+8.4x-1.1=100.9(501)28+x=118(502)(11x+10)÷2=82(503)7.5-x=3.6(504)15.7-23x=11.1(505)74x+23=171(506)174÷x=29(507)4÷x=0.8(508)2(5x-35)=180(509)3.8x+7.2x-3.9=84.1(510)2x+59=99(511)(4.1x+4.2)÷15=1.1(512)121+8x=297(513)18x-14×13=16(514)7x+11x-9=81(515)0.3x÷7=2.7(516)8x+5x=91(517)6x-23=13(518)x+3.9=6.8(519)81x-54x-2.6=24.4(520)82x+44x+4.5=143.1(521)4x-14×0.3=9.8(522)75x+51x+1.9=39.7(523)3x+2×8=100(524)x÷68=0.2(525)12x+13x+4.5=22(526)(13x-45)÷2=10(527)30x=90(528)2.7x÷6=1.8(529)2.8x-0.2x+2.8=80.8(530)9x+15x=72(531)35x+86x-1.4=119.6(532)x÷64=2(533)93-x=12(534)28x+7×9=259(535)2.4x-0.9x-2.3=47.2(536)0.8x=19.2(537)1.8+x=6.2(538)8(3x-41)=200(539)x-45=47(540)x-1.5=1.2参考答案(1)x=3(2)x=3(3)x=0.7(4)x=13(5)x=80(6)x=0.8(7)x=17(8)x=0.6(9)x=3(10)x=9.8(11)x=82(12)x=3(13)x=9.9(14)x=11(15)x=18(16)x=0.2(17)x=4(18)x=2.5(19)x=0.6(20)x=17(21)x=55(22)x=2(23)x=0.5(24)x=2(25)x=46(26)x=43(27)x=1.7(28)x=9(29)x=11(30)x=43(31)x=8(32)x=43(33)x=1.1(34)x=19.2(35)x=5(36)x=15(37)x=7(38)x=8(39)x=23(40)x=36(41)x=18(42)x=23(43)x=39(44)x=1.3(45)x=4(46)x=16(47)x=10(48)x=17(49)x=2(50)x=55(51)x=87(52)x=62(53)x=9(54)x=3.2(55)x=110(56)x=4(57)x=9(58)x=2.2(59)x=3.9(60)x=13(61)x=7(62)x=8(63)x=8(64)x=22(65)x=91(66)x=2(67)x=2(68)x=20(69)x=0.4(70)x=25(71)x=31(72)x=2.3(73)x=25(74)x=3(75)x=11(76)x=2.1(77)x=3.1(78)x=26(79)x=21(80)x=6(81)x=0.5(82)x=23(83)x=4(84)x=3(85)x=3(86)x=13(87)x=5(88)x=16(89)x=0.2(90)x=7.3(91)x=29(92)x=6(93)x=2(94)x=2(95)x=8.8(96)x=9(97)x=0.2(98)x=2(99)x=62(100)x=23(101)x=23(102)x=23(103)x=19(104)x=29(105)x=2(106)x=77(107)x=7(108)x=0.7(109)x=14(110)x=17(111)x=53(112)x=11(113)x=5(114)x=5(115)x=4(116)x=0.7(117)x=72(118)x=2(119)x=26(120)x=6(121)x=4.6(122)x=17(123)x=0.4(124)x=9(125)x=53(126)x=44(127)x=17(128)x=60(129)x=2(130)x=39(131)x=7(132)x=13(133)x=8(134)x=11(135)x=91(136)x=2(137)x=11(138)x=17(139)x=13(140)x=2.2(141)x=0.2(142)x=13(143)x=4(144)x=5.9(145)x=98(146)x=42(147)x=6(148)x=24(149)x=19(150)x=2(151)x=7(152)x=3(153)x=2.3(154)x=8(155)x=22(156)x=94(157)x=18(158)x=25(159)x=37(160)x=12(161)x=1.8(162)x=12(163)x=33(164)x=6(165)x=51(166)x=1.7(167)x=4(168)x=0.2(169)x=0.4(170)x=6(171)x=5.9(172)x=2.6(173)x=53(174)x=2(175)x=15(176)x=1.4(177)x=3(178)x=5(179)x=41(180)x=3.9(181)x=4.1(182)x=82(183)x=0.6(184)x=86(185)x=17.6(186)x=10(187)x=4(188)x=0.7(189)x=10(190)x=0.4(191)x=4(192)x=14(193)x=8(194)x=2(195)x=4(196)x=1.2(197)x=4.1(198)x=0.9(199)x=8(200)x=42(201)x=3.5(202)x=9(203)x=5(204)x=20(205)x=3(206)x=0.2(207)x=25(208)x=5(209)x=7(210)x=83(211)x=3(212)x=7.9(213)x=13.2(214)x=10(215)x=98(216)x=45(217)x=2(218)x=0.8(219)x=4.7(220)x=18(221)x=2(222)x=8(223)x=27(224)x=11(225)x=0.4(226)x=39(227)x=8(228)x=34(229)x=1(230)x=3(231)x=6(232)x=0.4(233)x=8(234)x=14(235)x=45(236)x=25(237)x=3(238)x=15(239)x=0.3(240)x=31(241)x=26(242)x=3(243)x=3.8(244)x=8.8(245)x=2.4(246)x=7(247)x=13(248)x=59(249)x=7(250)x=6(251)x=2(252)x=31(253)x=1.2(254)x=14.4(255)x=3(256)x=80(257)x=2(258)x=30(259)x=0.6(260)x=0.2(261)x=2(262)x=5(263)x=2.8(264)x=0.2(265)x=14(266)x=3(267)x=27(268)x=5(269)x=3(270)x=17(271)x=8(272)x=30(273)x=1.6(274)x=24(275)x=0.3(276)x=10(277)x=2(278)x=195(279)x=1.6(280)x=9(281)x=14(282)x=14(283)x=0.3(284)x=1.5(285)x=36(286)x=22(287)x=0.7(288)x=2(289)x=23(290)x=26(291)x=17(292)x=0.2(293)x=13(294)x=3.6(295)x=14(296)x=3(297)x=84(298)x=71(299)x=6(300)x=0.5(301)x=21(302)x=6(303)x=14(304)x=10(305)x=7.7(306)x=0.3(307)x=20(308)x=5.9(309)x=0.3(310)x=65(311)x=0.9(312)x=2.1(313)x=19(314)x=12(315)x=3(316)x=8(317)x=34(318)x=8(319)x=2(320)x=3(321)x=27(322)x=38(323)x=0.9(324)x=18(325)x=44(326)x=0.7(327)x=60(328)x=60(329)x=4(330)x=4(331)x=12(332)x=7(333)x=2.7(334)x=5.8(335)x=3(336)x=46(337)x=16(338)x=6(339)x=3(340)x=12(341)x=3(342)x=19(343)x=7(344)x=61(345)x=98(346)x=0.3(347)x=7(348)x=16(349)x=10(350)x=16(351)x=18(352)x=11(353)x=5(354)x=8(355)x=6(356)x=8(357)x=5(358)x=26(359)x=7(360)x=46(361)x=20(362)x=16(363)x=18(364)x=6.3(365)x=2(366)x=17(367)x=3(368)x=0.7(369)x=18.4(370)x=29(371)x=2.7(372)x=2.1(373)x=11(374)x=2(375)x=16(376)x=1.3(377)x=1.9(378)x=24(379)x=19(380)x=9.7(381)x=6.5(382)x=5(383)x=58(384)x=41(385)x=24(386)x=2(387)x=15(388)x=12(389)x=1(390)x=0.7(391)x=8(392)x=1.1(393)x=22(394)x=31(395)