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)1.3x-0.3×30=6.6(2)1x+2.1x-2.9=40.5(3)8.5+x=9(4)12x+43×0.4=19.6(5)5.6+x=15(6)1.9x=3.8(7)4(4.3x-7.1)=23.2(8)17÷x=1.7(9)9x+12x+16=142(10)3.6-x=1.4(11)10x-6x+11=23(12)1.2x+2.1×3=12.3(13)90-x=21(14)11x+5x-4=188(15)14.2-1.2x=2.2(16)11x-6x+29=44(17)2(x+7)=32(18)6+0.9x=12.3(19)50x-44=106(20)8x-8×14=24(21)3.1x+6.7x-2=86.2(22)2.9+0.2x=22.9(23)(15x+35)÷13=20(24)6.1x+2.9x+3.1=21.1(25)94-7x=66(26)17x+15x+35=99(27)79-x=57(28)62+x=65(29)130+43x=216(30)11.8+9.3x=30.4(31)192-5x=22(32)8x+6x+47=201(33)12.8÷x=0.4(34)1.6x+1.1=4.3(35)82x-78x+3.8=5.8(36)17x+12×0.8=23.2(37)13.7+2.7x=24.5(38)3x-11×0.6=7.8(39)2x=30(40)0.4x-1.7×7=2.9(41)6.8x-1.7x=61.2(42)1.7x+3.6=18.9(43)x-0.7=3.6(44)2.2x+0.4x-4.5=68.3(45)15.3+16x=20.1(46)x÷6=2.5(47)19.9-36x=1.9(48)0.3x-2.5=11.6(49)6x-2×1.3=4(50)9.1x-5.8x+4.6=14.5(51)50x-10x+2.3=38.3(52)2(7x-36)=54(53)194+32x=386(54)(8x-41)÷9=15(55)4x-4.7=13.3(56)x÷6=2.9(57)22x=44(58)4x-1x=75(59)10x=100(60)21x-16x-2.5=6.5(61)(6.5x+3.1)÷12=7.3(62)x-14=77(63)9-x=5.5(64)22x+2×23=112(65)8.7-0.3x=5.1(66)1.1x-4.3=15.5(67)3.9+x=6.5(68)18.6+0.5x=25.1(69)x+61=147(70)3.9x-2.3=17.2(71)18x+1.6=21.4(72)15+1.5x=34.5(73)x÷14=0.9(74)x-1.5=1.5(75)12.7+1.3x=16.6(76)2.9x-4.8=3.9(77)9x-3x+28=52(78)1.4x-5.8=1.2(79)(10x-34)÷31=6(80)0.7x-0.5x+1.9=18.1(81)56-x=43(82)2x-22=174(83)69x+54x+0.7=136(84)42-x=35(85)168÷x=4(86)x+7.9=9.7(87)3x-2.8=4.1(88)4.5÷x=1.5(89)x-2.8=5.7(90)5x-5×28=55(91)2(x+48)=188(92)25x÷40=5(93)5x+7x=192(94)7x+13x=240(95)26x+3x+2.3=71.9(96)3.5x+6.4x=89.1(97)7.6-0.2x=7(98)2.9x-2.1×2=4.5(99)x+3.8=8.1(100)1.1x+4.6x-0.3=45.3(101)2x-3×2=182(102)0.2x-1.3=12.1(103)14x-5x=27(104)9.6x+6.4x=112(105)3(3x+41)=159(106)48x-7x-4.2=45(107)14x+23=177(108)(13x-33)÷42=2(109)8x+13x+34=286(110)15x+51x-3.4=9.8(111)20x-9x-2.6=51.3(112)23x+82x-2.5=60.5(113)3x+20×0.6=14.1(114)50x+55x+3.2=160.7(115)2.7x+3.8x=13(116)0.2x+2.4=5.2(117)(5.1x+6.6)÷39=2(118)148÷x=4(119)4.1x=12.3(120)17.3+5x=33.8(121)24+60x=204(122)12x=180(123)11x=22(124)21x+53×2=295(125)2x=2.2(126)0.3x+0.8×12=12.9(127)3x-11=70(128)89-x=55(129)(13x+18)÷25=8(130)46x-2x-4.7=70.1(131)x+85=184(132)5x+2x+12=33(133)6.7x+4.2x+3.5=101.6(134)x+39=115(135)0.6x+2×2=19(136)9x-3x-8=88(137)3(1.1x+1.9)=15.6(138)5x-2x+34=145(139)141+2x=163(140)(8x+49)÷35=3(141)15.7-10x=5.7(142)45x-34=56(143)x÷4=4.5(144)10(0.2x-4.9)=33(145)x-41=12(146)6.5x+5.5x-0.2=23.8(147)15x-4×7=17(148)9x+8x=204(149)136-2x=48(150)52x-30x+3.6=8(151)11.4-1.2x=1.8(152)11.4-22x=4.8(153)2.1x-1.3x=20.8(154)13(5.3x-7.1)=45.5(155)65x÷26=5(156)2x+11=87(157)3.8x-1x-3.4=33(158)21x+10=115(159)0.7x-0.8×15=2.7(160)0.9x+0.7×12=20.1(161)10.3-3x=3.7(162)2x=12.6(163)8.5x-1.7x-4.7=29.3(164)(6.2x-8.8)÷16=4.1(165)0.6x+2×5=27.4(166)x÷18=9(167)30x-3.5=5.5(168)x-52=40(169)60x+38x-1.4=37.8(170)x+50=66(171)x+4.1=10.7(172)1.1x+8.6x=38.8(173)9.4-19x=3.7(174)3.6x-0.3x-1.7=80.8(175)2(4x+22)=180(176)9.9-0.8x=7.5(177)6(7x+5)=114(178)2x=188(179)3x+32×0.3=21.3(180)x-7=66(181)x-3.5=4.7(182)16x+15×2=190(183)(8.2x+1)÷22=3.4(184)3(18x-12)=126(185)8.2-x=8(186)53x-31x+0.6=11.6(187)4.8x-1.5×2=11.4(188)33x=198(189)94x-17x-3.3=50.6(190)23x-26=112(191)128÷x=16(192)0.5x=1(193)6x+9x-9=231(194)x-43=16(195)20+x=96(196)34x+89x+1.6=136.9(197)3x-3×1.1=11.4(198)0.9x÷45=0.2(199)9x-6x=12(200)13x-3x-26=14(201)19x-17x+31=43(202)6x=18.6(203)1x+2.3×5=17.5(204)5(5x-15)=50(205)18.5-0.6x=7.1(206)5.8x-4.1x+3.3=30.5(207)1.3x+1x=69(208)0.6x+1.2x+4.2=126.6(209)2(1.5x+3.6)=22.2(210)x+2=6.9(211)1.6x-1.2x=5.2(212)x-1.5=3.4(213)3x+5.6=17.9(214)3(0.3x+2)=31.2(215)9.7-x=9.3(216)(6x+27)÷7=9(217)3.7x+3.5x+1.4=44.6(218)7x-3x+1=38.6(219)23+x=45(220)x-10=62(221)5.3x-2.4x+1.8=36.6(222)5.3x+6x+1=181.8(223)32x-12×0.9=8.4(224)4.2x+4.9x-0.4=17.8(225)5x+3x-20=60(226)(4x-14)÷2=5(227)48x÷12=1.2(228)(6x-33)÷25=3(229)5(2x-16)=90(230)2x+13x=135(231)127-29x=40(232)(11x-11)÷15=11(233)3.7x-3.7×2=3.7(234)70+x=102(235)2x+7x=252(236)8.2-x=7.8(237)(2.7x-0.2)÷4=12.1(238)12x+7x=114(239)7(5x-48)=119(240)47x=94(241)15x+5x=140(242)5(5x-37)=115(243)(4.9x+0.7)÷7=8.5(244)49x÷7=2.1(245)x+3.5=3.7(246)(4x-3.6)÷38=1.8(247)11x+55x-2=57.4(248)x÷4=15(249)0.3x=9.3(250)5x+29=219(251)36x+4.4=18.8(252)0.7x-1.2×5=13.6(253)13x=5.2(254)15x+20x-0.4=164.1(255)8x-3.3=8.7(256)182÷x=7(257)15x-5x+40=70(258)105-3x=66(259)2x÷4=18(260)(2.9x-4.3)÷10=4.5(261)9x-6x-49=17(262)5.6+x=6.8(263)(4.7x+8.2)÷6=13.9(264)x-4=4.3(265)7x-3x-21=43(266)104+15x=179(267)3x+18=27(268)40+18x=238(269)0.2x=5.6(270)49x+43x-4.3=23.3(271)1.6x-1.4=8.2(272)72x+52x+4.9=54.5(273)16.1-7x=7(274)86x-81x-2.3=2.2(275)(0.7x+9.1)÷3=4.9(276)7x+1.5=2.9(277)1.6÷x=0.8(278)19.8-10x=7.8(279)10x-2×0.3=15.4(280)22x+30×0.2=19.2(281)6.5x-1.7x+1.3=63.7(282)3(1.2x+7.3)=32.7(283)4x-2×3.6=8(284)x-6.9=2.3(285)5x-2×21=58(286)13x+2x+24=129(287)6x-3×11=45(288)0.8x+2.7x-1.8=78.7(289)6(2.3x-8.3)=19.2(290)(8.8x-0.2)÷35=1(291)5x-2.6=17.4(292)10x=5(293)7x+5×26=186(294)3x+6x-24=219(295)1.4x=7(296)3.6x+1.8x=54(297)(7x-2.5)÷3=8.5(298)4.6+8.6x=21.8(299)6+x=19(300)16x÷3=48(301)0.4x+2.7=17.1(302)9.5x-5.1x-1.5=7.3(303)70x+22x-1.2=118.4(304)x-49=48(305)83+x=165(306)(3.8x-3.2)÷4=14.4(307)x÷12=14(308)(1.5x-0.2)÷8=1.1(309)7.1x-2.5x-1=26.6(310)7.5÷x=2.5(311)3x÷6=1.5(312)77x+23x+1.4=91.4(313)3(0.3x-3.4)=21.3(314)x+86=176(315)6.3x+7.4x=137(316)16x-10x+42=66(317)(8x+28)÷19=12(318)177-17x=92(319)3.8x-1.5x-4.9=31.9(320)x÷20=6(321)19x-11x=56(322)8x-2x-11=43(323)3.2x+1.8=11.4(324)2x+1.8=3.6(325)x-18=48(326)x÷2=1.4(327)2.5x+3.6=21.1(328)76+x=171(329)12x+67x-3.5=107.1(330)8.7x-4.8=12.6(331)52x-36=68(332)2.4x+3.3=22.5(333)15x-4x+2.5=12.4(334)(7x-9)÷39=3(335)92÷x=23(336)10x+6×0.9=17.4(337)12x-2×28=136(338)2.4x-0.7x=35.7(339)x÷97=2(340)2x+2.5=15.5(341)(16x-42)÷2=115(342)3x+5.6=16.4(343)6x+12×15=276(344)13.2÷x=0.2(345)156÷x=4(346)20x+31x+1.8=129.3(347)144÷x=12(348)16x+2×38=124(349)17.8-0.2x=16.4(350)1.1x+3.2=23(351)4(0.9x+4)=41.2(352)15.2-12x=5.6(353)135÷x=15(354)0.4x÷16=0.2(355)0.5x+2.3×2=6.6(356)2(5x+32)=94(357)3.7x-2.5x=4.8(358)(1.5x+4.5)÷3=9.5(359)3.8x÷4=1.9(360)45-x=35(361)3x=10.2(362)0.2x-0.2×11=6.6(363)1x-0.7x-0.6=18(364)4.8+x=6.5(365)13(0.5x+0.9)=37.7(366)11.1+5x=18.1(367)7x-5x=24(368)1.3x+2.6x=7.8(369)150÷x=30(370)11.6+2x=28.8(371)x÷6=14(372)150-3x=96(373)4.6+x=8.6(374)18x-10x-22=10(375)47x-2.2=16.6(376)6+x=14.1(377)18x+63x+3.8=28.1(378)4x+48=96(379)133-5x=63(380)7.4-x=4(381)4x=152(382)2x+28×5=314(383)92+70x=232(384)2x-5.8=5.4(385)(3.5x+5.5)÷6=8.5(386)9.7+x=12.3(387)5.2÷x=0.2(388)3(4x+8.6)=49.8(389)81x-59x+1.9=26.1(390)49-2x=37(391)80x-64x-3.7=12.3(392)x+9.4=13.2(393)1.7x+0.3x+4.4=106.4(394)20x+22×7=294(395)3x-5.2=2(396)51x-26x-0.2=34.8(397)2(8.8x+6)=47.2(398)0.6x÷3=2.6(399)x÷82=0.2(400)3x+8x+28=105(401)50x=10(402)0.8x-0.5x+4.5=29.1(403)x-5.9=1.6(404)4x-20=164(405)8x-5x-19=38(406)26x-3×1.9=9.9(407)5x-33×0.2=12.9(408)18.3+27x=29.1(409)x+84=89(410)6.6+24x=11.4(411)9x+7x-20=28(412)x+7.3=14.2(413)95+x=105(414)145+34x=315(415)4x+8×11=168(416)98x+24=220(417)9.1x-1.9x-4.5=24.3(418)x+0.6=5.1(419)56x÷4=42(420)2x+16=82(421)9.8÷x=4.9(422)2(x-2)=78(423)79x+42x-4.3=80.4(424)1.5x+6.7x+3=101.4(425)6x÷30=2(426)1.3x+4.4x-3.6=121.8(427)3.2x-1.4x-1.8=16.2(428)12x-4=9.2(429)x+25=94(430)23+x=42(431)2(7x-33)=158(432)85x-30x-4.6=39.4(433)x÷7=11(434)5(2.6x-5.1)=26.5(435)1.8x-0.7×8=7(436)2(0.7x-7.5)=13(437)2.9x-0.8x=23.1(438)2x÷37=4(439)7x-46=45(440)7x+5x+38=314(441)11x-9x=26(442)24x÷16=0.3(443)11x-2x=144(444)15.8+11x=21.3(445)13.9-4x=1.9(446)(3x+36)÷9=8(447)14.9-4x=10.9(448)(11x+22)÷11=16(449)14x-12x=18(450)5x÷10=0.3(451)51x-8x+0.7=13.6(452)5x+14x=171(453)2x÷12=1.4(454)x-55=11(455)36-x=21(456)1.2x+3.9×5=37.5(457)33x÷11=18(458)0.6x+4.8=14.4(459)14x-2x=60(460)4x=3.6(461)5.4x-1.2x=16.8(462)17x+25x+2.9=82.7(463)3x+0.3×12=18.6(464)4x-2x+34=70(465)10x+5x+28=73(466)21x+9×1.8=26.7(467)x÷3=34(468)2.3x-0.5x+0.3=25.5(469)0.3x=8.4(470)4.9-x=2.7(471)1.3x-4=6.4(472)14x+9x=184(473)10x-2×10=50(474)7.4-x=1.5(475)38x÷57=0.2(476)4(0.8x-8.6)=13.6(477)x÷18=0.5(478)3.1x+1x-0.8=73(479)7(4x+14)=154(480)19x+11x-25=275(481)21x+21×0.5=27.3(482)(16x+38)÷10=15(483)x÷26=0.5(484)2(12x+2)=52(485)7(4.9x-6.3)=24.5(486)x÷3=48(487)9x-5×16=118(488)8x-4x=80(489)2.6x+7.3x+0.3=129(490)15x+7x-40=158(491)13x-10x-5=22(492)2.8x-0.3x+0.6=18.1(493)x-0.9=6(494)7x-31=46(495)50x-30x+2.1=38.1(496)7x-4×2.3=10.4(497)13.7+35x=20.7(498)13x=7.8(499)5.6x-2.5x=46.5(500)6x-2x+45=101(501)61-x=34(502)x+29=115(503)2.8+6x=22(504)0.4x=12.8(505)8x÷2=12(506)(15x-15)÷25=3(507)2x÷4=3.5(508)3x÷6=3.2(509)x+99=179(510)17+5x=82(511)12.3-0.7x=10.2(512)(5.8x-4.3)÷23=4.1(513)(6x+10)÷2=74(514)3x+6x-35=226(515)9-x=2.8(516)4x+2.6=18.2(517)13x-8x-19=11(518)5(x-19)=100(519)0.6x÷30=0.3(520)0.3x=17.7(521)43-x=24(522)(x+4.4)÷13=0.8(523)5x+19x-32=64(524)9.2x-4.3x+3.6=13.4(525)x÷4=0.5(526)3x÷27=0.5(527)3x÷4=1.5(528)11x+4.7=14.6(529)6.2+x=14.4(530)0.4x+1.5x+2.2=127.6(531)2(5x+30)=110(532)18.3+1.5x=37.8(533)15.2÷x=3.8(534)6x+56=68(535)1.5x+3.2x=103.4(536)1.4x÷7=2.2(537)1.2x÷84=0.2(538)4(0.5x+2.1)=12.4(539)x+7.8=11.5(540)18x+3×3.3=13.5参考答案(1)x=12(2)x=14(3)x=0.5(4)x=0.2(5)x=9.4(6)x=2(7)x=3(8)x=10(9)x=6(10)x=2.2(11)x=3(12)x=5(13)x=69(14)x=12(15)x=10(16)x=3(17)x=9(18)x=7(19)x=3(20)x=17(21)x=9(22)x=100(23)x=15(24)x=2(25)x=4(26)x=2(27)x=22(28)x=3(29)x=2(30)x=2(31)x=34(32)x=11(33)x=32(34)x=2(35)x=0.5(36)x=0.8(37)x=4(38)x=4.8(39)x=15(40)x=37(41)x=12(42)x=9(43)x=4.3(44)x=28(45)x=0.3(46)x=15(47)x=0.5(48)x=47(49)x=1.1(50)x=3(51)x=0.9(52)x=9(53)x=6(54)x=22(55)x=4.5(56)x=17.4(57)x=2(58)x=25(59)x=10(60)x=1.8(61)x=13(62)x=91(63)x=3.5(64)x=3(65)x=12(66)x=18(67)x=2.6(68)x=13(69)x=86(70)x=5(71)x=1.1(72)x=13(73)x=12.6(74)x=3(75)x=3(76)x=3(77)x=4(78)x=5(79)x=22(80)x=81(81)x=13(82)x=98(83)x=1.1(84)x=7(85)x=42(86)x=1.8(87)x=2.3(88)x=3(89)x=8.5(90)x=39(91)x=46(92)x=8(93)x=16(94)x=12(95)x=2.4(96)x=9(97)x=3(98)x=3(99)x=4.3(100)x=8(101)x=94(102)x=67(103)x=3(104)x=7(105)x=4(106)x=1.2(107)x=11(108)x=9(109)x=12(110)x=0.2(111)x=4.9(112)x=0.6(113)x=0.7(114)x=1.5(115)x=2(116)x=14(117)x=14(118)x=37(119)x=3(120)x=3.3(121)x=3(122)x=15(123)x=2(124)x=9(125)x=1.1(126)x=11(127)x=27(128)x=34(129)x=14(130)x=1.7(131)x=99(132)x=3(133)x=9(134)x=76(135)x=25(136)x=16(137)x=3(138)x=37(139)x=11(140)x=7(141)x=1(142)x=2(143)x=18(144)x=41(145)x=53(146)x=2(147)x=3(148)x=12(149)x=44(150)x=0.2(151)x=8(152)x=0.3(153)x=26(154)x=2(155)x=2(156)x=38(157)x=13(158)x=5(159)x=21(160)x=13(161)x=2.2(162)x=6.3(163)x=5(164)x=12(165)x=29(166)x=162(167)x=0.3(168)x=92(169)x=0.4(170)x=16(171)x=6.6(172)x=4(173)x=0.3(174)x=25(175)x=17(176)x=3(177)x=2(178)x=94(179)x=3.9(180)x=73(181)x=8.2(182)x=10(183)x=9(184)x=3(185)x=0.2(186)x=0.5(187)x=3(188)x=6(189)x=0.7(190)x=6(191)x=8(192)x=2(193)x=16(194)x=59(195)x=76(196)x=1.1(197)x=4.9(198)x=10(199)x=4(200)x=4(201)x=6(202)x=3.1(203)x=6(204)x=5(205)x=19(206)x=16(207)x=30(208)x=68(209)x=5(210)x=4.9(211)x=13(212)x=4.9(213)x=4.1(214)x=28(215)x=0.4(216)x=6(217)x=6(218)x=9.4(219)x=22(220)x=72(221)x=12(222)x=16(223)x=0.6(224)x=2(225)x=10(226)x=6(227)x=0.3(228)x=18(229)x=17(230)x=9(231)x=3(232)x=16(233)x=3(234)x=32(235)x=28(236)x=0.4(237)x=18(238)x=6(239)x=13(240)x=2(241)x=7(242)x=12(243)x=12(244)x=0.3(245)x=0.2(246)x=18(247)x=0.9(248)x=60(249)x=31(250)x=38(251)x=0.4(252)x=28(253)x=0.4(254)x=4.7(255)x=1.5(256)x=26(257)x=3(258)x=13(259)x=36(260)x=17(261)x=22(262)x=1.2(263)x=16(264)x=8.3(265)x=16(266)x=5(267)x=3(268)x=11(269)x=28(270)x=0.3(271)x=6(272)x=0.4(273)x=1.3(274)x=0.9(275)x=8(276)x=0.2(277)x=2(278)x=1.2(279)x=1.6(280)x=0.6(281)x=13(282)x=3(283)x=3.8(284)x=9.2(285)x=20(286)x=7(287)x=13(288)x=23(289)x=5(290)x=4(291)x=4(292)x=0.5(293)x=8(294)x=27(295)x=5(296)x=10(297)x=4(298)x=2(299)x=13(300)x=9(301)x=36(302)x=2(303)x=1.3(304)x=97(305)x=82(306)x=16(307)x=168(308)x=6(309)x=6(310)x=3(311)x=3(312)x=0.9(313)x=35(314)x=90(315)x=10(316)x=4(317)x=25(318)x=5(319)x=16(320)x=120(321)x=7(322)x=9(323)x=3(324)x=0.9(325)x=66(326)x=2.8(327)x=7(328)x=95(329)x=1.4(330)x=2(331)x=2(332)x=8(333)x=0.9(334)x=18(335)x=4(336)x=1.2(337)x=16(338)x=21(339)x=194(340)x=6.5(341)x=17(342)x=3.6(343)x=16(344)x=66(345)x=39(346)x=2.5(347)x=12(348)x=3(349)x=7(350)x=18(351)x=7(352)x=0.8(353)x=9(354)x=8(355)x=4(356)x=3(357)x=4(358)x=16(359)x=2(360)x=10(361)x=3.4(362)x=44(363)x=62(364)x=1.7(365)x=4(366)x=1.4(367)x=12(368)x=2(369)x=5(370)x=8.6(371)x=84(372)x=18(373)x=4(374)x=4(375)x=0.4(376)x=8.1(377)x=0.3(378)x=12(379)x=14(380)x=3.4(381)x=38(382)x=87(383)x=2(384)x=5.6(385)x=13(386)x=2.6(387)x=26(388)x=2(389)x=1.1(390)x=6(391)x=1(392)x=3.8(393)x=51(394)x=