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)3.3-x=1(2)16x+35×3=201(3)x+45=135(4)1.5x+0.4x-2.3=11(5)6.8x-1.7x-3.7=47.3(6)119-11x=20(7)4.9x+1.3=16(8)11x+13×1.5=30.5(9)7.3x-5.1=9.5(10)5x+7x-30=282(11)x+79=81(12)(4x+8)÷2=50(13)3(5x+39)=147(14)x-18=52(15)2x+59=163(16)x-55=18(17)8(0.6x+2.2)=32(18)97-x=51(19)7x=18.2(20)x+6.9=16.3(21)1.8x÷12=1.2(22)105÷x=35(23)4.7x-0.9x-2.8=4.8(24)18.3-5.6x=1.5(25)96-x=20(26)67x+49x-0.5=34.3(27)x÷13=6(28)9x-3x+30=78(29)x-3.1=4.8(30)0.8x+1×8=28(31)7.1x-2.6x-2.8=19.7(32)10x+90x-1.2=28.8(33)5.7-x=4.8(34)9.1x-1.8x+3.9=25.8(35)11x+15x=52(36)1.7x-1.4×5=1.5(37)(6.8x+1.2)÷6=7(38)2x÷8=1(39)18x+3x+27=195(40)8(x+4)=144(41)0.9x-3×2=10.2(42)12x+44×0.3=20.4(43)46x+22x-3.9=91.3(44)11.2÷x=0.4(45)x+3.1=6.1(46)33x+28x+4.7=65.7(47)136+4x=168(48)4(x+21)=92(49)5.4x÷9=1.8(50)10.8+0.6x=20.4(51)70x+57x-2.8=73.4(52)19.7-4.9x=9.9(53)13x+19x+22=342(54)10x=110(55)9x÷2=3.6(56)5+x=13.9(57)8(1.4x+1.4)=33.6(58)6.4x+4.3=17.1(59)7.2x-0.5x+1.7=75.4(60)17x-5x+25=109(61)(6x-40)÷2=25(62)2(0.7x+4.3)=43.6(63)5(13x-21)=155(64)(3.8x-8.2)÷37=0.6(65)77x+59=213(66)6(0.4x+0.9)=39(67)8(0.6x-4.6)=11.2(68)x+7.1=16.3(69)1.8+x=10(70)0.2x-0.4×5=5(71)10x=11(72)14x+18x-31=65(73)6x÷9=0.2(74)76x+6x-1=105.6(75)6.4x-2.1x=17.2(76)7x-53=115(77)7.2-x=4.8(78)(0.6x-2.6)÷2=1.4(79)19x-11x=16(80)4.9x+5.9x+4.6=145(81)2(2x-22)=132(82)98+x=179(83)2(5.2x-5.4)=41.2(84)52-x=36(85)1.1x=18.7(86)138÷x=6(87)2.2x÷11=0.8(88)12(1.9x-2.4)=16.8(89)0.3x-1.1=13.6(90)17x-5x-29=103(91)18x+3x=42(92)9.6+x=18.9(93)x+19=113(94)7x+32=130(95)3x-8×0.2=5(96)6.3-1.6x=3.1(97)23x-4×19=108(98)10x+6x+46=110(99)4.1x-2.9x+4.9=24.1(100)6x-2x=128(101)3x+5x+9=209(102)x÷31=0.4(103)9-x=3.2(104)15x-3x+49=97(105)x÷2=4.6(106)(8x+6)÷4=5.5(107)24x+56x+3.6=131.6(108)4.3x+1.4=10(109)8.8x-5.2x-4.6=31.4(110)2x-32=38(111)5x-3x=64(112)(11x-13)÷24=10(113)6x÷4=24(114)3x+3×3.2=12(115)51x-10x-0.3=57.1(116)(16x-44)÷4=49(117)2x-38=134(118)(8x-48)÷2=32(119)25-x=16(120)0.4x=4.4(121)0.5x-0.2×3=4.9(122)1.3x-4.4=7.3(123)8.7x+2.2x-4.9=104.1(124)(8x-20)÷28=7(125)0.6x+1.7×5=15.1(126)0.2x+1.2×9=15(127)6.8x-1.2x=11.2(128)(2x+48)÷2=39(129)x+4.7=5.6(130)3.2x+0.9×14=22.2(131)(1.6x-7.4)÷22=0.9(132)92+x=176(133)2.8x+4.9x=77(134)11x+12x=230(135)0.5x=17.5(136)x-28=41(137)162-9x=117(138)8x-3x-42=23(139)1.8+5.6x=13(140)9.2-x=9(141)53x=10.6(142)72x+47x-4.5=78.8(143)43x=86(144)18x+5x+18=179(145)14.2-2x=8(146)2(3.3x+6.6)=39.6(147)4x+4×2.7=16.4(148)18.9+44x=27.7(149)3x+9x+2=182(150)7x+3.8=14.3(151)15x+16x-21=227(152)6x-5×24=78(153)9x+11x+3=123(154)x-14=67(155)2.1x+1.2x-3.6=95.4(156)(13x-11)÷2=66(157)x+3.5=4.1(158)11.2÷x=0.7(159)x÷12=1.5(160)2.5x+1.4×10=19(161)3x-44=70(162)x-14=56(163)5(16x-13)=175(164)17x-4x=39(165)x÷90=2(166)106+18x=286(167)146+10x=166(168)14x÷2=2.8(169)23x-6×3=51(170)24x÷6=2.8(171)18÷x=2(172)5.4÷x=0.3(173)x÷56=3(174)57÷x=3(175)5x-20=35(176)91+x=99(177)26x÷14=1.3(178)10x-2x-42=22(179)(6.2x-9.4)÷13=5(180)8x-2×0.7=14.6(181)(10x+30)÷2=55(182)4.7x-2.9x-1.3=22.1(183)x-0.6=1.1(184)2.6x-0.3x+1.6=89(185)56x-21x+1.2=46.7(186)15x+10x=175(187)(6x+39)÷21=9(188)3+x=3.6(189)17x+1.7=13.6(190)14.4+15x=17.4(191)7.9x=15.8(192)16.1-31x=3.7(193)7.2x÷18=0.8(194)3(2x+8)=48(195)0.7x-0.9×2=8.7(196)73x+5.1=19.7(197)2.7x+0.2×27=18.9(198)4x+3x=175(199)14x-2×49=70(200)4.1x+6.8x-4.9=60.5(201)3(2x-15)=63(202)32x-29x-2.2=2.9(203)7x+3x=180(204)8x-6x-1=3.6(205)4x-2x+24=118(206)68x-61x+0.2=5.8(207)3(x+29)=93(208)2x=16.4(209)(3x+28)÷23=2(210)5(3.9x-4.9)=34(211)(0.5x+6.6)÷6=2.6(212)7x+1.8=8.8(213)84-2x=38(214)5.8x+5.6x+3.1=139.9(215)5(0.5x+3.1)=20.5(216)19.1+5x=37.6(217)12x+18x=300(218)39x+8×2=27.7(219)4x+12x+40=136(220)4x-2x=96(221)1.8+0.6x=16.2(222)9.5x+6.7x=162(223)6.1+0.4x=13.7(224)16x-5x+12=89(225)2x÷9=0.4(226)18.3+11x=30.4(227)4.1+1.2x=20.9(228)x+91=155(229)9.8x+4.8x+2.4=60.8(230)0.4x-4=5.6(231)44x=17.6(232)x÷59=3(233)5.6+0.7x=21.7(234)77x+38x+0.2=23.2(235)0.9x-2×2=6.8(236)11.6+4x=19.6(237)3x÷6=2.5(238)3.6x+4.1x+3.2=57.1(239)5(3x-25)=160(240)74x-6x-0.9=73.9(241)16x+9x-6=169(242)45+6x=183(243)74-12x=38(244)69-x=12(245)(7x+18)÷2=86(246)61-x=44(247)(5.1x+4.3)÷4=4.9(248)12.8-44x=4(249)(9x+16)÷7=28(250)0.3x+0.5×37=27.2(251)1.7x=5.1(252)6x+6×0.2=15(253)19x-8x=110(254)(9.9x-5.7)÷3=24.5(255)11.2-21x=2.8(256)78x+71x+1.4=150.4(257)x-0.7=5.2(258)9x-3x-6=54(259)5+x=7(260)1.5x=15(261)6x=24(262)x+2.1=11(263)3x+2x-27=98(264)2x+23=161(265)38x+8×1.2=21(266)2(0.5x-2.2)=4.6(267)4.5x÷18=0.5(268)9.5-x=9(269)198-7x=79(270)9x-7x+1.1=14.7(271)17x-5×13=54(272)13x-5.9=8.4(273)x-2=3.9(274)86+x=106(275)2(0.7x+3.4)=18(276)(6.8x+9.6)÷14=7(277)x-6.8=2.8(278)9x-1.6x-2.7=71.3(279)10.3+2x=16.7(280)7x+44=65(281)19.1-0.3x=15.5(282)6+x=76(283)184-85x=14(284)65+3x=92(285)12+0.7x=28.1(286)26÷x=2(287)193-10x=23(288)40x÷5=24(289)2x-42=152(290)5.4x+2x=133.2(291)4.1x-0.4x=18.5(292)10.7+3x=17.6(293)7.6x-2.2x=64.8(294)x-30=22(295)5(0.7x-8.1)=36.5(296)47x+44=232(297)7.1-x=4.7(298)3x+4x=217(299)85x÷17=10(300)43x-24x-4=28.3(301)6.2x-2.5x=59.2(302)x÷5=22(303)0.9x-4.6=8.9(304)4.9x-3.4x+2.4=14.4(305)13(2.1x-2.8)=45.5(306)5.4x-0.9x-4.7=17.8(307)17.5-1.8x=13.9(308)20x=12(309)47x+2.4=16.5(310)27x+6x+4.4=123.2(311)2.8x=8.4(312)2(9.6x+2.9)=44.2(313)22x=132(314)3.5x÷25=0.7(315)2x+17=101(316)96÷x=8(317)8x-2x+47=173(318)11x+44×4=231(319)4x-1.2=8.8(320)(12x-18)÷3=62(321)7x-5x=42(322)1.2+x=6.2(323)(0.7x+3.4)÷5=2.5(324)8.8x+2.3x+3.1=36.4(325)(16x-4)÷28=5(326)20x+32x+4=61.2(327)8x÷4=6(328)(3.8x+5)÷10=2.4(329)x÷2=1.1(330)15x-4.9=4.1(331)4.1x-2.1x-0.7=35.3(332)2(12x-27)=162(333)12x-3x+32=68(334)x÷11=1.2(335)x÷3=3.2(336)(14x+32)÷10=13(337)(7x-7.8)÷6=12.7(338)6x-2x-14=86(339)2(3x+11)=196(340)64x-18x-4.6=59.8(341)7(3x+2)=98(342)x+29=69(343)2.3x+0.6x+0.7=76.1(344)16x-2x-5=65(345)84÷x=42(346)28x=8.4(347)158+5x=258(348)151-3x=109(349)15(4x-20)=180(350)(5.6x+6.8)÷6=11.4(351)17x=153(352)x÷20=9(353)2x÷6=23(354)0.4x+5.8x=93(355)8.1x-0.7x=81.4(356)6+x=6.2(357)4.3x-0.6x+3.3=51.4(358)83x-35x+2.3=45.5(359)0.2x=10.6(360)2.3x+3.8=15.3(361)11x-6x+18=68(362)3.8x-3.6=11.6(363)13.6÷x=0.4(364)1.9+x=8.1(365)4x÷12=0.5(366)8x-1.3=1.9(367)x+9.4=9.8(368)36x-3x+3=59.1(369)x-0.8=1.5(370)3x+4x+42=56(371)5.3x+2.1x-3.1=122.7(372)6.6x-6.1x=7.5(373)36x-3.6=14.4(374)9.1-1.7x=5.7(375)52x÷13=12(376)15÷x=0.5(377)2x-2×1.9=1.6(378)2x+9x-14=140(379)4.9x-0.8x+4.7=66.2(380)153+76x=305(381)61+x=130(382)6.7x+5.4=18.8(383)10.6-6x=2.8(384)7.6x+7.5x=105.7(385)63+x=79(386)2x÷10=8(387)17.2-4x=16(388)3x-50=142(389)3x-18×0.7=1.8(390)16x-10x-16=26(391)(8x-14)÷9=18(392)x÷14=12(393)19.5-2.3x=3.4(394)18-3x=3.3(395)5x-2x-3=105(396)1.9x-1=6.6(397)(5.3x-3.3)÷12=3.7(398)21x=126(399)44x+2.3=11.1(400)2x-12×6=82(401)1.5x-0.4x-2.2=64.9(402)94-x=91(403)x+9.1=17.7(404)17.6÷x=4.4(405)7(6.3x-7.8)=33.6(406)13x+37x+3=48(407)2(2x+6)=104(408)1.6x+4.8x=108.8(409)16x-6x-11=89(410)(8.9x-6.5)÷2=36.8(411)14x-29×2=96(412)15.3-4x=5.7(413)2x=2(414)x+2.9=3.2(415)1.4x+1.5x-0.3=17.1(416)2x+8x-4.8=45.2(417)16x+17×2=82(418)86x+49x+4.3=31.3(419)8.5x+9.5x=54(420)x+60=75(421)0.5x+2.4=12.4(422)12x÷15=4(423)32x-6×2.3=2.2(424)4x+10x-3.5=58.1(425)19.1+14x=37.3(426)13x+22×4=270(427)111÷x=37(428)2.4x-2.1×3=8.1(429)x-31=24(430)11x-23×0.2=15.2(431)18x+45x+1.7=45.8(432)1.2x-1.6×2=4(433)8.9x+9.8x+1.2=113.4(434)2(7x+7)=84(435)1.5x-1.8=7.2(436)1.3x-0.8×21=1.4(437)21x+32x-1=46.7(438)56-x=20(439)2(5.1x-9.2)=32.6(440)17x-2x=165(441)10(1.1x+1.4)=36(442)4x+4=19.2(443)11x+47=201(444)x-2.3=3.5(445)6x-30×0.2=7.2(446)12÷x=1(447)15x÷5=3(448)x-1.7=3.1(449)(6.3x-5.2)÷4=11.3(450)x÷35=4(451)8.7x+8.5x=189.2(452)8x+2×66=244(453)12x+3×53=219(454)9x+16x=300(455)2.3-x=1.3(456)199-16x=119(457)35x-1.6=12.4(458)8x-6x+38=74(459)3.7+0.5x=12.7(460)7.2-x=6.8(461)8.1÷x=2.7(462)7.6x-0.4x=50.4(463)5.6÷x=0.8(464)55x-5.6=5.4(465)188+17x=290(466)2.8x+1.7x-0.4=103.1(467)34x-30x+0.3=6.7(468)9x-5x=40(469)14.4-6x=1.8(470)4.9+x=12.9(471)20x=60(472)19x+4×4=31.2(473)1.6x÷4=4.4(474)2x-2×46=44(475)16x+46=142(476)96x-34x-3.8=14.8(477)79-x=17(478)x+37=116(479)7x+4x-23=10(480)4.2x-1.5x+2.4=48.3(481)10x-9×2=182(482)13x-43=48(483)x÷16=6(484)2.6x=5.2(485)2.1x+1.4×4=9.8(486)57+x=108(487)3+x=7(488)11x÷5=22(489)5.9x+0.2x+2.8=51.6(490)8.2x+4.2x=49.6(491)12x+95×2=226(492)4.5x+5.3=18.8(493)(6x+18)÷36=4(494)44x-34x+2.3=11.3(495)x-23=71(496)0.2x-2.7=6.7(497)x-34=61(498)12x-1.3=10.7(499)x÷8=0.5(500)9.2x+8.5x-1.5=51.6(501)2x=62(502)0.6x÷78=0.2(503)x+89=175(504)58x+2.2=19.6(505)x÷9=1.6(506)23x-4x-3.5=26.9(507)7.2x-1.9x=68.9(508)x-5.2=1.7(509)88x-48x-4.8=19.2(510)1.7x+4.7=21.7(511)145÷x=5(512)29x-17×0.6=7.2(513)3x+17x-45=35(514)9.6+7x=15.2(515)3.9x+4.6=12.4(516)3x+23×8=379(517)3(10x-20)=30(518)5x-2×0.7=7.6(519)x÷6=3.3(520)6x-37=161(521)3.2x+8.7x+1.8=73.2(522)15-3.6x=4.2(523)54x+53x-1.9=147.9(524)3x=11.7(525)13.1+12x=20.3(526)3x+29×0.2=7.9(527)10+23x=194(528)8x+4.9=11.3(529)19x=171(530)18.1-3.8x=6.7(531)5x-1.2=16.3(532)86x-54x+0.6=32.6(533)x+72=168(534)(7.5x+8.7)÷2=15.6(535)7(6x-18)=168(536)97x-78x+4.9=18.2(537)3.9x+0.7×9=18(538)4x+20×9=212(539)4.6x-4x+4=10.6(540)16x+9x-13=112参考答案(1)x=2.3(2)x=6(3)x=90(4)x=7(5)x=10(6)x=9(7)x=3(8)x=1(9)x=2(10)x=26(11)x=2(12)x=23(13)x=2(14)x=70(15)x=52(16)x=73(17)x=3(18)x=46(19)x=2.6(20)x=9.4(21)x=8(22)x=3(23)x=2(24)x=3(25)x=76(26)x=0.3(27)x=78(28)x=8(29)x=7.9(30)x=25(31)x=5(32)x=0.3(33)x=0.9(34)x=3(35)x=2(36)x=5(37)x=6(38)x=4(39)x=8(40)x=14(41)x=18(42)x=0.6(43)x=1.4(44)x=28(45)x=3(46)x=1(47)x=8(48)x=2(49)x=3(50)x=16(51)x=0.6(52)x=2(53)x=10(54)x=11(55)x=0.8(56)x=8.9(57)x=2(58)x=2(59)x=11(60)x=7(61)x=15(62)x=25(63)x=4(64)x=8(65)x=2(66)x=14(67)x=10(68)x=9.2(69)x=8.2(70)x=35(71)x=1.1(72)x=3(73)x=0.3(74)x=1.3(75)x=4(76)x=24(77)x=2.4(78)x=9(79)x=2(80)x=13(81)x=44(82)x=81(83)x=5(84)x=16(85)x=17(86)x=23(87)x=4(88)x=2(89)x=49(90)x=11(91)x=2(92)x=9.3(93)x=94(94)x=14(95)x=2.2(96)x=2(97)x=8(98)x=4(99)x=16(100)x=32(101)x=25(102)x=12.4(103)x=5.8(104)x=4(105)x=9.2(106)x=2(107)x=1.6(108)x=2(109)x=10(110)x=35(111)x=32(112)x=23(113)x=16(114)x=0.8(115)x=1.4(116)x=15(117)x=86(118)x=14(119)x=9(120)x=11(121)x=11(122)x=9(123)x=10(124)x=27(125)x=11(126)x=21(127)x=2(128)x=15(129)x=0.9(130)x=3(131)x=17(132)x=84(133)x=10(134)x=10(135)x=35(136)x=69(137)x=5(138)x=13(139)x=2(140)x=0.2(141)x=0.2(142)x=0.7(143)x=2(144)x=7(145)x=3.1(146)x=4(147)x=1.4(148)x=0.2(149)x=15(150)x=1.5(151)x=8(152)x=33(153)x=6(154)x=81(155)x=30(156)x=11(157)x=0.6(158)x=16(159)x=18(160)x=2(161)x=38(162)x=70(163)x=3(164)x=3(165)x=180(166)x=10(167)x=2(168)x=0.4(169)x=3(170)x=0.7(171)x=9(172)x=18(173)x=168(174)x=19(175)x=11(176)x=8(177)x=0.7(178)x=8(179)x=12(180)x=2(181)x=8(182)x=13(183)x=1.7(184)x=38(185)x=1.3(186)x=7(187)x=25(188)x=0.6(189)x=0.7(190)x=0.2(191)x=2(192)x=0.4(193)x=2(194)x=4(195)x=15(196)x=0.2(197)x=5(198)x=25(199)x=12(200)x=6(201)x=18(202)x=1.7(203)x=18(204)x=2.3(205)x=47(206)x=0.8(207)x=2(208)x=8.2(209)x=6(210)x=3(211)x=18(212)x=1(213)x=23(214)x=12(215)x=2(216)x=3.7(217)x=10(218)x=0.3(219)x=6(220)x=48(221)x=24(222)x=10(223)x=19(224)x=7(225)x=1.8(226)x=1.1(227)x=14(228)x=64(229)x=4(230)x=24(231)x=0.4(232)x=177(233)x=23(234)x=0.2(235)x=12(236)x=2(237)x=5(238)x=7(239)x=19(240)x=1.1(241)x=7(242)x=23(243)x=3(244)x=57(245)x=22(246)x=17(247)x=3(248)x=0.2(249)x=20(250)x=29(251)x=3(252)x=2.3(253)x=10(254)x=8(255)x=0.4(256)x=1(257)x=5.9(258)x=10(259)x=2(260)x=10(261)x=4(262)x=8.9(263)x=25(264)x=69(265)x=0.3(266)x=9(267)x=2(268)x=0.5(269)x=17(270)x=6.8(271)x=7(272)x=1.1(273)x=5.9(274)x=20(275)x=8(276)x=13(277)x=9.6(278)x=10(279)x=3.2(280)x=3(281)x=12(282)x=70(283)x=2(284)x=9(285)x=23(286)x=13(287)x=17(288)x=3(289)x=97(290)x=18(291)x=5(292)x=2.3(293)x=12(294)x=52(295)x=22(296)x=4(297)x=2.4(298)x=31(299)x=2(300)x=1.7(301)x=16(302)x=110(303)x=15(304)x=8(305)x=3(306)x=5(307)x=2(308)x=0.6(309)x=0.3(310)x=3.6(311)x=3(312)x=2(313)x=6(314)x=5(315)x=42(316)x=12(317)x=21(318)x=5(319)x=2.5(320)x=17(321)x=21(322)x=5(323)x=13(324)x=3(325)x=9(326)x=1.1(327)x=3(328)x=5(329)x=2.2(330)x=0.6(331)x=18(332)x=9(333)x=4(334)x=13.2(335)x=9.6(336)x=7(337)x=12(338)x=25(339)x=29(340)x=1.4(341)x=4(342)x=40(343)x=26(344)x=5(345)x=2(346)x=0.3(347)x=20(348)x=14(349)x=8(350)x=11(351)x=9(352)x=180(353)x=69(354)x=15(355)x=11(356)x=0.2(357)x=13(358)x=0.9(359)x=53(360)x=5(361)x=10(362)x=4(363)x=34(364)x=6.2(365)x=1.5(366)x=0.4(367)x=0.4(368)x=1.7(369)x=2.3(370)x=2(371)x=17(372)x=15(373)x=0.5(374)x=2(375)x=3(376)x=30(377)x=2.7(378)x=14(379)x=15(380)x=2(381)x=69(382)x=2(383)x=1.3(384)x=7(385)x=16(386)x=40(387)x=0.3(388)x=64(389)x=4.8(390)x=7(391)x=22(392)x=168(393)x=