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)22x-52=36(2)1x=8(3)0.6x-0.4x+3.4=11.6(4)(8.7x+6.6)÷2=46.8(5)4.1x+0.6x+4.9=80.1(6)12x+3x=210(7)(8x+28)÷19=12(8)2.4x-1.8=5.4(9)4.5x-3.5x=6(10)99+x=170(11)7.5-x=1.7(12)168÷x=4(13)(4.2x+0.6)÷9=5.2(14)7.2-x=1.1(15)4x-2x+16=96(16)53x+97x+1.9=76.9(17)x+9.6=13.1(18)x-5.9=1.6(19)17.5+9.3x=36.1(20)1.2x+2.3x-1.7=12.3(21)(17x-36)÷20=5(22)9x+7x=304(23)(7.1x+8)÷21=4.1(24)18x-13x+4=29(25)x÷62=2(26)x+2=3.3(27)69-x=20(28)4x+39=207(29)5.1x+8.1x-2.9=115.9(30)18.8-12x=15.2(31)x+9=104(32)19x=5.7(33)17+x=104(34)16.4-6x=9.2(35)(5.7x-1.9)÷14=1.9(36)26x-44×0.2=4.2(37)16.3-0.7x=5.8(38)12.6+0.5x=16.6(39)2x+2.7=10.9(40)57-x=45(41)0.6x÷24=0.5(42)7+x=12.7(43)4x+5×10=70(44)3x=3.6(45)70+x=83(46)11x=198(47)2x-2=7.8(48)x÷21=9(49)65x-56x-0.3=5.1(50)(7.5x+6)÷4=16.5(51)5x-2x=93(52)5(25x-37)=65(53)x÷69=2(54)2x+3x+21=291(55)3x+4x+36=253(56)11.7+0.3x=18.3(57)6.8-x=5.4(58)84x+20x+1.5=22.3(59)58x-5x+2.3=65.9(60)3.2x÷8=2(61)x-1.3=1.1(62)7x+5×3.6=33.4(63)34x-4.4=9.2(64)0.2x-3.2=10.8(65)15x+2x-3.1=80.2(66)0.2x+3.9×5=28.3(67)1.4x+4.1=12.5(68)45x-12x+4.9=31.3(69)67x-56x-2.4=9.7(70)7x+9x-29=307(71)11x÷33=2(72)2.5+x=5.4(73)2x÷8=0.7(74)14x+16x-1.4=61.6(75)78-x=76(76)2x÷23=4(77)x+78=167(78)5.6-7x=2.8(79)3.7x+3.2x=34.5(80)8.9-x=4.1(81)6(0.4x-5.8)=8.4(82)2.1+x=12(83)x-3.9=1.3(84)181-3x=142(85)(9.3x+5.5)÷2=35.3(86)16x+14x+10=220(87)5x+5×1.7=23(88)0.4x+1.1×5=25.1(89)30x+3×3.4=28.2(90)2x-2.5=13.7(91)x-10=32(92)10x-5x=45(93)0.9x-0.2×22=15.4(94)3x-26=16(95)(9x-24)÷6=17(96)3.2x÷16=1.2(97)x-4.6=2.4(98)8.9-x=1.1(99)5x-3x+26=70(100)1.1x+3.7=7(101)1.3x+8.8x=30.3(102)5+0.5x=8(103)16x+2.1=16.5(104)22x+3.6=14.6(105)(2.2x-7.6)÷16=2(106)x÷25=0.2(107)4(4.3x+2.3)=43.6(108)173-70x=33(109)3+x=14(110)5÷x=1(111)12x+11x-39=306(112)13x-5x=56(113)2.3+6x=20.9(114)9x+23=194(115)2x-31=27(116)8.1x-1.1x+4=46(117)1.9+0.6x=3.7(118)14x+39x+2.9=114.2(119)5(28x-16)=200(120)5x+56=91(121)12x+7x+6=177(122)7x=9.8(123)9x-23=31(124)3(4x-27)=123(125)28x-4x-0.9=68.7(126)15x-13x+1=13.2(127)x+95=100(128)9.8-0.6x=7.4(129)2x+2×21=60(130)7x-6×1.3=11.1(131)6x-4x=16(132)109-4x=65(133)1.2x+2.1x+3=102(134)3x+3.5=20.9(135)61x+87x-4.3=114.1(136)8.8x-7.3x+1.2=17.7(137)132+40x=212(138)(15x-41)÷49=1(139)(2x-5)÷3=13(140)5x-4x=15(141)2(0.5x+2)=48(142)41+5x=61(143)7x-46=129(144)(5.2x+4.1)÷19=3.5(145)0.6x+0.5×6=20.4(146)(16x+7)÷5=43(147)10x-3x-32=45(148)3+x=12.2(149)4x+15x+26=216(150)3(0.4x-1.6)=33.6(151)(9x-13)÷34=2(152)(2.9x+5.6)÷5=4.6(153)x÷33=0.6(154)4x+38=86(155)x÷21=0.9(156)16-12x=2.8(157)1x-1×5=9(158)x÷23=8(159)3.7x+1.1x+2.5=12.1(160)10.7+0.5x=18.2(161)2.1x-0.5x+4.2=55.4(162)x÷5=0.8(163)x+3=9(164)3x÷2=15(165)14.2-5x=3.7(166)11.5÷x=2.3(167)6(0.2x+1.4)=24(168)91-x=41(169)2(8x-1.5)=29(170)4.6x-0.2×17=15(171)8x+52=124(172)2(3.1x+3.1)=24.8(173)3x÷27=0.7(174)6.3-x=1.7(175)13.3+2.5x=30.8(176)3(9x+4)=147(177)x-81=15(178)3x-5.8=9.2(179)18x-51×3=45(180)0.3x÷78=0.2(181)19x+12x-3.8=151.2(182)5x+42=142(183)5x÷11=10(184)2x=19.6(185)2x+3.9=11.9(186)15x+4x+0.9=107.3(187)114-20x=74(188)33x-23×0.6=6(189)5x=165(190)37x-9×0.5=10.3(191)12x÷4=4.8(192)5.9x-4.5x-0.3=15.1(193)3x+2×98=388(194)x+15=43(195)3.7x-0.5x-1.3=43.5(196)169-38x=55(197)4.8+10x=24.8(198)(3.2x-1.7)÷3=19.7(199)6x+46×0.4=25(200)4.1x+0.8x+2.1=51.1(201)6x+33x-2.4=5.4(202)4x+6x-15=95(203)0.6x+1.3×10=25.6(204)13+x=50(205)9.4+x=18.6(206)x+3.9=4.2(207)0.2x=2(208)14(2x-11)=182(209)x-27=15(210)3(4x+9)=147(211)(4.5x-2.2)÷4=1.7(212)8.2x+0.6x-2=59.6(213)16x-9x-10=74(214)28x÷84=0.2(215)96÷x=12(216)16.5÷x=1.5(217)0.7x-3.5×2=12.6(218)11.8÷x=0.2(219)81x+52x-1.3=65.2(220)4.2x-3.4x+1.1=11.5(221)x÷23=2(222)x+96=186(223)23+x=108(224)1.1x+2.6x-4.8=2.6(225)40÷x=8(226)4x+10x=224(227)4x-12×7=44(228)0.3x=8.1(229)4x-16×5=108(230)(3x+44)÷2=46(231)1.6x+0.2x-1.6=90.2(232)5.9x+1.3x=36(233)2(6.8x+3.2)=33.6(234)95x-20x-4.8=47.7(235)5.9+4x=21.5(236)2x+3×27=119(237)2÷x=0.4(238)0.3x+0.7×4=15.1(239)x-0.6=3.3(240)x+73=78(241)0.2x=5.6(242)x+1.8=7(243)4x-2x+24=60(244)9.3x-7.8x-3.5=10(245)7+x=47(246)2x+7x=54(247)20x-4=10(248)22x-4×3.7=2.8(249)37x=18.5(250)x-1.6=1.5(251)19.3-4x=7.3(252)1.1x-0.7x=28(253)0.9x-4.2=12.9(254)(6x-4.8)÷3=22.4(255)x÷12=0.9(256)3.8x-1×14=5(257)27(0.5x-8.2)=35.1(258)7.1x-3.2x=15.6(259)29x-2×67=11(260)7.5-12x=1.5(261)(17x+39)÷26=10(262)5(4.8x-5.6)=20(263)3x+39=219(264)1.2x+3.2x-1.2=117.6(265)35x-3×0.2=16.9(266)45x-26x+1.2=27.8(267)1.5+0.2x=21.1(268)14+x=60(269)11x÷6=33(270)76-x=11(271)3.9-x=1.2(272)3x+60×2=201(273)6.8x=13.6(274)6.1x+3.4=21.7(275)8.3+3x=21.8(276)2.1x+3.5=16.1(277)7(0.2x-3)=12.6(278)11x+26×0.5=29.5(279)6.6x+4.7x-1.9=145(280)10.8-2x=1.6(281)97-x=67(282)8+x=15.1(283)131-3x=92(284)8.6+x=13.7(285)12x+7×0.9=23.1(286)79-x=52(287)x÷64=2(288)5.7÷x=1.9(289)7(x+5)=161(290)4x=6.8(291)26x+5.4=13.2(292)2.4x+1.1x=14(293)24x-21=75(294)13x+22×5=227(295)4.3x-2.7x+4=26.4(296)0.6x+2.4=12(297)4.6x+5.7x=82.4(298)x÷7=2.1(299)4(2x+37)=188(300)0.2x÷4=0.6(301)15x-7x+1.3=35.7(302)2.8x+4.4x+4.7=62.3(303)25x-7×1.9=4.2(304)x-79=11(305)32x=9.6(306)16.1-0.2x=9.9(307)3.7x-0.6x-4.3=23.6(308)156÷x=3(309)x-49=33(310)0.6x÷8=1.5(311)38x+34x-2=62.8(312)9x-6.8x=11(313)18(x+4)=108(314)2x÷28=0.3(315)18x-8x-18=42(316)10x+31=191(317)2(3.7x+8.6)=32(318)18x+3x-32=10(319)4(2x+10)=200(320)0.5x-3.2=16.3(321)149+38x=301(322)155-2x=33(323)9+1.8x=23.4(324)63-x=39(325)x÷8=4(326)7x÷28=0.6(327)41x-24x+1.7=23.8(328)19x-11x-3.6=4.4(329)6x+5.7x=152.1(330)9.1x+7.3x+0.4=148(331)4(6x+32)=176(332)12.9-2x=1.9(333)3x+3×10=204(334)(9x-45)÷27=1(335)x+47=120(336)4x+3×34=162(337)60x+5.9=17.9(338)18x+13x=155(339)0.9x+0.7x+1.5=153.5(340)75+x=103(341)(9.3x-8.7)÷12=1.6(342)7(4x-33)=105(343)83x-43x+1.2=29.2(344)8.8x-0.5x-2.8=88.5(345)51x+28x+3.1=66.3(346)(2x+2)÷20=2(347)x÷17=10(348)30x+16x+3.6=132.4(349)15.8+18x=19.4(350)140÷x=2(351)9.4x+8.6x=54(352)8.2x-5.5=10.9(353)2x-38=112(354)1.5x+8.7x+1.9=22.3(355)2x+10x+32=104(356)1.4x-5.6=9.8(357)9x+13x=176(358)2.4x-2.7×6=3(359)13x-10x+30=45(360)(19x-49)÷18=11(361)6x-3.3x+1.3=41.8(362)90x+34x+4.9=91.7(363)0.6x+0.9×6=13.2(364)0.2x-3=3(365)87x-35x+2.1=48.9(366)x+12=17(367)63+12x=183(368)44x-16x-3.9=52.1(369)7.3x-2.7x+0.9=56.1(370)x-32=63(371)16.3-0.3x=2.5(372)3x÷11=15(373)x+3.7=10.7(374)(3x-24)÷5=6(375)x-28=71(376)4x+10x=126(377)17.5-0.5x=14.5(378)8.2+3x=21.7(379)3(0.8x+4.9)=21.9(380)7x-1.1=1.7(381)(3x+17)÷2=16(382)2x+4.6=16.8(383)0.8x÷16=1.2(384)5x=150(385)4.2x-1.5x=51.3(386)8x-6x+37=73(387)5x-10×9=40(388)11x+7x-49=23(389)x-5.4=4.1(390)57-6x=21(391)17x-6x-5=83(392)2x+3x-33=197(393)2.2x+8.4x-2.2=19(394)2x=56(395)18x+15x+14=344(396)2.4x-1.6x=14.4(397)5(23x-30)=80(398)82+29x=198(399)37x=74(400)0.7x-0.4×10=7.9(401)7.9-x=2.6(402)142+2x=196(403)30x=60(404)x+9.6=14.9(405)2x+2.4=21.6(406)9.7x-0.9x-2=33.2(407)(10x+2)÷33=4(408)5.6x÷8=2.1(409)4x-13×3=17(410)140÷x=4(411)x+83=131(412)9.9x-5.6x-0.3=25.5(413)27x=81(414)16x+8x-6=66(415)9.4x+4.1x=67.5(416)2.9+4x=4.9(417)186÷x=31(418)5x+11x+24=168(419)(2.3x-2.8)÷11=1(420)12x-2x-10=100(421)6.6x-5.8x=8.8(422)6x-3x=93(423)11(5x-3)=187(424)x÷46=0.3(425)0.8x=15.2(426)11x-5x+20=110(427)6x+3×2.4=18.6(428)2(2x+41)=146(429)33x+78x-3.9=73.8(430)17x-4x-46=84(431)4.9x-4.5x=6.8(432)4x-4×0.5=12.4(433)4x+1.8=12.2(434)5(1.2x+6.4)=50(435)19x-10x-26=37(436)x+9.2=13.9(437)3x-2.4=8.4(438)4(3x+35)=176(439)(15x+24)÷33=8(440)2.7x+9.6x+1.3=124.3(441)15.4÷x=0.2(442)(0.3x-0.9)÷2=1.8(443)8.9+x=15.9(444)12x-6×0.9=10.2(445)4x÷5=16(446)18x=126(447)2x-4.8=1.2(448)5x-2x-10=56(449)18x+2×1.5=17.4(450)7x+3x=200(451)20x÷8=0.5(452)25x-2×44=87(453)x÷5=0.6(454)6.1x+3.7=15.9(455)x-0.6=5.6(456)14(x-7.5)=21(457)(7.3x-2.7)÷30=2.1(458)x÷12=0.3(459)0.5x÷2=4.5(460)(19x+46)÷2=80(461)14.6-0.2x=12.2(462)31+2x=127(463)31x+50=143(464)x+9.7=15.1(465)0.4x=4(466)5x+3x=48(467)x-5.3=4.1(468)3x+2x+29=149(469)0.3x+2.5=10.9(470)35x=7(471)157+4x=277(472)3.6x-2.2x+2.4=31.8(473)2.9x+3.4=12.1(474)23x-2x+3.5=56(475)16.9+4x=26.5(476)2(1.7x-7.7)=32.2(477)175+14x=301(478)4x÷44=3(479)7.8+x=10(480)16.1+12x=23.3(481)3x+6×0.2=6(482)1.5x+2.6x=98.4(483)(8.4x+2.8)÷7=12.4(484)1x+8.1x-2.5=52.1(485)2.7-x=1.1(486)4x-1.4=16.6(487)5x-5=11(488)(3x+7.2)÷6=6.2(489)17x-6x-44=77(490)5.3x-2.4x-2.6=26.4(491)13x-7×3=83(492)10x+37x-2.7=6.7(493)7.7÷x=0.7(494)14x+3×15=157(495)17x+13x-41=259(496)0.4x+0.9×17=29.7(497)0.8x+0.3×12=21.2(498)7(2.2x-7.5)=24.5(499)3.6x+2.9×3=19.5(500)0.4x-0.4×9=12(501)2(0.3x+6.8)=35.8(502)0.2x-2=9.8(503)7x-5x=12(504)88x-29x-2.1=45.1(505)18÷x=3(506)11.9÷x=0.7(507)15x+3x-31=131(508)2(2x-28)=120(509)83-x=73(510)16x-5×10=46(511)x-60=27(512)37x+54x+1.7=147.3(513)175÷x=25(514)12x÷28=0.3(515)5.8x-1.5x-2=45.3(516)2x=16(517)x÷46=2(518)0.3x-1.6×3=4.8(519)14x-3x=44(520)5.8-0.5x=3.8(521)12x=24(522)2x÷22=0.5(523)37x-32x-2.5=10(524)x-8=23(525)0.3x=15.6(526)26x+10x+3.1=17.5(527)17x-25=111(528)15.2-11x=4.2(529)10x-2x+23=175(530)18x-9x+47=65(531)0.9x=15.3(532)5x-3x=60(533)3x-41=10(534)5(10x-10)=150(535)13.2-4.5x=4.2(536)83-3x=20(537)17x-3x=126(538)(9x-7)÷11=10(539)36x÷3=48(540)72x-42x-0.8=32.2参考答案(1)x=4(2)x=8(3)x=41(4)x=10(5)x=16(6)x=14(7)x=25(8)x=3(9)x=6(10)x=71(11)x=5.8(12)x=42(13)x=11(14)x=6.1(15)x=40(16)x=0.5(17)x=3.5(18)x=7.5(19)x=2(20)x=4(21)x=8(22)x=19(23)x=11(24)x=5(25)x=124(26)x=1.3(27)x=49(28)x=42(29)x=9(30)x=0.3(31)x=95(32)x=0.3(33)x=87(34)x=1.2(35)x=5(36)x=0.5(37)x=15(38)x=8(39)x=4.1(40)x=12(41)x=20(42)x=5.7(43)x=5(44)x=1.2(45)x=13(46)x=18(47)x=4.9(48)x=189(49)x=0.6(50)x=8(51)x=31(52)x=2(53)x=138(54)x=54(55)x=31(56)x=22(57)x=1.4(58)x=0.2(59)x=1.2(60)x=5(61)x=2.4(62)x=2.2(63)x=0.4(64)x=70(65)x=4.9(66)x=44(67)x=6(68)x=0.8(69)x=1.1(70)x=21(71)x=6(72)x=2.9(73)x=2.8(74)x=2.1(75)x=2(76)x=46(77)x=89(78)x=0.4(79)x=5(80)x=4.8(81)x=18(82)x=9.9(83)x=5.2(84)x=13(85)x=7(86)x=7(87)x=2.9(88)x=49(89)x=0.6(90)x=8.1(91)x=42(92)x=9(93)x=22(94)x=14(95)x=14(96)x=6(97)x=7(98)x=7.8(99)x=22(100)x=3(101)x=3(102)x=6(103)x=0.9(104)x=0.5(105)x=18(106)x=5(107)x=2(108)x=2(109)x=11(110)x=5(111)x=15(112)x=7(113)x=3.1(114)x=19(115)x=29(116)x=6(117)x=3(118)x=2.1(119)x=2(120)x=7(121)x=9(122)x=1.4(123)x=6(124)x=17(125)x=2.9(126)x=6.1(127)x=5(128)x=4(129)x=9(130)x=2.7(131)x=8(132)x=11(133)x=30(134)x=5.8(135)x=0.8(136)x=11(137)x=2(138)x=6(139)x=22(140)x=15(141)x=44(142)x=4(143)x=25(144)x=12(145)x=29(146)x=13(147)x=11(148)x=9.2(149)x=10(150)x=32(151)x=9(152)x=6(153)x=19.8(154)x=12(155)x=18.9(156)x=1.1(157)x=14(158)x=184(159)x=2(160)x=15(161)x=32(162)x=4(163)x=6(164)x=10(165)x=2.1(166)x=5(167)x=13(168)x=50(169)x=2(170)x=4(171)x=9(172)x=3(173)x=6.3(174)x=4.6(175)x=7(176)x=5(177)x=96(178)x=5(179)x=11(180)x=52(181)x=5(182)x=20(183)x=22(184)x=9.8(185)x=4(186)x=5.6(187)x=2(188)x=0.6(189)x=33(190)x=0.4(191)x=1.6(192)x=11(193)x=64(194)x=28(195)x=14(196)x=3(197)x=2(198)x=19(199)x=1.1(200)x=10(201)x=0.2(202)x=11(203)x=21(204)x=37(205)x=9.2(206)x=0.3(207)x=10(208)x=12(209)x=42(210)x=10(211)x=2(212)x=7(213)x=12(214)x=0.6(215)x=8(216)x=11(217)x=28(218)x=59(219)x=0.5(220)x=13(221)x=46(222)x=90(223)x=85(224)x=2(225)x=5(226)x=16(227)x=32(228)x=27(229)x=47(230)x=16(231)x=51(232)x=5(233)x=2(234)x=0.7(235)x=3.9(236)x=19(237)x=5(238)x=41(239)x=3.9(240)x=5(241)x=28(242)x=5.2(243)x=18(244)x=9(245)x=40(246)x=6(247)x=0.7(248)x=0.8(249)x=0.5(250)x=3.1(251)x=3(252)x=70(253)x=19(254)x=12(255)x=10.8(256)x=5(257)x=19(258)x=4(259)x=5(260)x=0.5(261)x=13(262)x=2(263)x=60(264)x=27(265)x=0.5(266)x=1.4(267)x=98(268)x=46(269)x=18(270)x=65(271)x=2.7(272)x=27(273)x=2(274)x=3(275)x=4.5(276)x=6(277)x=24(278)x=1.5(279)x=13(280)x=4.6(281)x=30(282)x=7.1(283)x=13(284)x=5.1(285)x=1.4(286)x=27(287)x=128(288)x=3(289)x=18(290)x=1.7(291)x=0.3(292)x=4(293)x=4(294)x=9(295)x=14(296)x=16(297)x=8(298)x=14.7(299)x=5(300)x=12(301)x=4.3(302)x=8(303)x=0.7(304)x=90(305)x=0.3(306)x=31(307)x=9(308)x=52(309)x=82(310)x=20(311)x=0.9(312)x=5(313)x=2(314)x=4.2(315)x=6(316)x=16(317)x=2(318)x=2(319)x=20(320)x=39(321)x=4(322)x=61(323)x=8(324)x=24(325)x=32(326)x=2.4(327)x=1.3(328)x=1(329)x=13(330)x=9(331)x=2(332)x=5.5(333)x=58(334)x=8(335)x=73(336)x=15(337)x=0.2(338)x=5(339)x=95(340)x=28(341)x=3(342)x=12(343)x=0.7(344)x=11(345)x=0.8(346)x=19(347)x=170(348)x=2.8(349)x=0.2(350)x=70(351)x=3(352)x=2(353)x=75(354)x=2(355)x=6(356)x=11(357)x=8(358)x=8(359)x=5(360)x=13(361)x=15(362)x=0.7(363)x=13(364)x=30(365)x=0.9(366)x=5(367)x=10(368)x=2(369)x=12(370)x=95(371)x=46(372)x=55(373)x=7(374)x=18(375)x=99(376)x=9(377)x=6(378)x=4.5(379)x=3(380)x=0.4(381)x=5(382)x=6.1(383)x=24(384)x=30(385)x=19(386)x=18(387)x=26(388)x=4(389)x=9.5(390)x=6(391)x=8(392)x=46(393)x=2