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)53-x=50(2)4.8x÷36=0.4(3)18x-12x+2=14(4)7x+26x-0.4=52.4(5)32x+57x-2=140.4(6)4x÷16=9(7)2x+28=122(8)14x-5x-30=33(9)14(0.2x-6.5)=26.6(10)0.5x÷14=1(11)x+25=57(12)(6.1x-6.6)÷14=6.5(13)3x+2x=305(14)(0.5x-1)÷4=1(15)x÷4=38(16)5x-23×0.2=6.9(17)2x=18.2(18)6.9x-5.6x-1.8=6(19)8x+10x+49=283(20)1.7x-3.9=1.2(21)0.9x+0.5×12=18.6(22)37x+13x+1=31(23)19.4+0.4x=28.6(24)93x+57x-3.7=41.3(25)(x+38)÷14=4(26)42÷x=6(27)3(x-32)=42(28)84x+3.7=20.5(29)76x-38x-1.8=36.2(30)3x+2.2x-4.6=89(31)29x+47x-1.2=143.2(32)15÷x=1(33)x÷2=22(34)13.5+14x=33.1(35)9.8x-0.3x+4.3=80.3(36)19.2-18x=13.8(37)3(2x-3)=129(38)x+1=2.5(39)(7.4x+1.9)÷5=13.7(40)14x=98(41)x÷6=2.6(42)13x-7x=90(43)3(0.3x+1.2)=12.6(44)0.8x+4.3=15.5(45)189-6x=105(46)(3.1x-6.4)÷8=5.4(47)x+8=14(48)16x-5x+43=153(49)18x=126(50)46+x=60(51)71x-20x+2.3=63.5(52)8x+3×5=55(53)6.1x-1.7x-3=10.2(54)16.8+2x=25(55)7.8÷x=1.3(56)2x+31×4=200(57)40x-11×0.2=9.8(58)1x=11(59)3.3x-1.7×8=6.2(60)4.5x-3x=10.5(61)183+27x=345(62)4x=14.8(63)9.5x+9.8x=96.5(64)77x-36x+0.8=37.7(65)x+3=11.3(66)0.4x+3.4=14.6(67)(5.7x+3.6)÷6=10.1(68)x-70=11(69)7x-1.1=8(70)x+5.1=11.4(71)8-x=2.7(72)0.2x+2=12.2(73)5x-37×4=27(74)x+74=110(75)x-58=41(76)107-3x=32(77)16x-5x+40=84(78)6.1x-2.3x-3.7=34.3(79)8x+6×0.7=17(80)4.5x-4x+3.1=5.1(81)5x+5.4=24.4(82)5.2x-4.2x-1.9=3.1(83)1.7x+1.3x=60(84)69x+3.6=17.4(85)x-82=12(86)10.2÷x=3.4(87)14x-9x-16=14(88)14-15x=6.5(89)x-3=3.7(90)6.4x+3.3=16.1(91)0.6x+4.7=11.3(92)16x+3x=133(93)x+70=107(94)185+3x=269(95)9x+2x-11=154(96)x-12=25(97)2x-31=23(98)0.4x-2.6=10.6(99)2.2+0.6x=22(100)x-3.1=5.1(101)x+7.9=12.8(102)45x+94x-3.1=24.7(103)(x+3.5)÷3=5.5(104)16.4-0.8x=6(105)51-x=46(106)6(8x-35)=174(107)(6.5x-1.4)÷7=12.8(108)2.2x=17.6(109)2(x+45)=152(110)7.4x-2.8x+0.4=46.4(111)98+20x=158(112)2x+17×0.4=14.2(113)2.8x+1.9x+1.7=44(114)2x=144(115)9.8x-2.8x-4.5=16.5(116)117÷x=13(117)7x÷84=2(118)1.1x=2.2(119)x÷24=0.7(120)x-1.2=6.2(121)3x+6x=216(122)(2.6x+5.7)÷5=2.7(123)3x-19×0.3=6(124)18x-13x-24=16(125)7.3+x=10.4(126)(10x+11)÷3=47(127)0.4x-0.3×24=3.6(128)0.8x+9.9x+2.6=66.8(129)x÷7=23(130)(5.6x-4.4)÷2=17.4(131)3(9x-44)=30(132)0.7x-0.3x+2.9=38.5(133)x+50=76(134)13x-3x+20=110(135)0.7x=17.5(136)17.4+0.8x=25.4(137)8x÷3=4.8(138)79x-36x-3.9=34.8(139)2(5.2x+1.5)=23.8(140)2(3x+4)=56(141)x+9.9=14.8(142)5x÷50=2(143)3x-29=148(144)16.5-15x=1.5(145)2(0.3x+4)=31.4(146)3.9x-0.5×13=1.3(147)54+35x=194(148)2x+4.3x+3.9=66.9(149)x+91=122(150)6÷x=1(151)8x+13×0.3=17.5(152)3(x+13)=69(153)2(0.3x+8.6)=28(154)100+7x=275(155)4x+2.3x-3.2=148(156)19x-13x-9=45(157)(x+15)÷20=2(158)8.4x-4.9=11.9(159)(19x-34)÷14=3(160)1.2x+3.3x+2=47(161)18x-3=15(162)4.8x-1.3x-3.7=20.8(163)5.3x=10.6(164)60x-2.7=9.3(165)126÷x=14(166)28x-8×5=72(167)10x-4×1.2=15.2(168)19x+23×0.3=24(169)6x-1.2=16.2(170)6x+16×11=296(171)5.9x+9.4x=107.1(172)19x-14x+38=83(173)3x+2.9=18.8(174)8÷x=4(175)4x÷14=14(176)18.8-7.8x=3.2(177)0.9x=18.9(178)4.6+45x=22.6(179)x÷27=0.5(180)5.3-x=4.9(181)16.4÷x=4.1(182)1.2x+6.5x+2.2=17.6(183)2x-2.9=7.5(184)2.6x-1.3x+0.8=21.6(185)14x+19×3=225(186)15.6+13x=20.8(187)2.4x-0.8×5=12.8(188)(5.8x-9)÷28=0.3(189)48÷x=2(190)3.1x+0.2×23=13.9(191)7x+1.9=18(192)x÷11=1.5(193)2x=150(194)88x-73x-2.3=3.7(195)(1.3x+0.8)÷23=0.6(196)(14x-44)÷6=23(197)14÷x=0.7(198)24x-8×15=48(199)15.7-0.4x=4.9(200)8.3-x=1.4(201)4x÷7=28(202)x-15=20(203)7.1-x=6.2(204)6.2x-4.1x=23.1(205)30x+94x+3.3=77.7(206)2x÷46=0.4(207)68+x=148(208)0.3x-1=9.2(209)8.5x+2.8x-0.5=123.8(210)2.2x-0.6×2=3.2(211)2(0.6x-8.2)=4(212)3x+5.4=24.3(213)17x-5x-16=104(214)0.6+x=2.8(215)5x+7x-30=186(216)34x-13x+1.3=51.7(217)8x-3x+26=116(218)2(1.1x+3.3)=30.8(219)42x÷12=1.4(220)0.5x-0.3x+4.5=18.7(221)5(0.6x+1.4)=22(222)12x-6x-9=21(223)17.1-0.5x=5.1(224)17x-10x+26=61(225)x÷22=8(226)5.5+x=12.2(227)x-3.6=1.1(228)60x÷24=5(229)14x-6x-15=89(230)2x+9x=143(231)9x+3x+35=275(232)3.3x-1.2=8.7(233)1.4x-0.4×31=1.6(234)4.2x÷7=1.8(235)4x-2x=12(236)103-3x=61(237)x+19=87(238)15x÷36=0.5(239)95x+60x-0.2=61.8(240)7(2x-23)=161(241)22x-1=7.8(242)17+x=71(243)0.3x÷2=0.6(244)25x+4×30=220(245)6(2x+21)=150(246)1.7x=3.4(247)19.3-1.1x=8.3(248)2(5x-21)=28(249)22x+19×0.4=20.8(250)1.2x-0.2x=32(251)1.9-3x=1(252)13x÷26=0.7(253)x+3.7=12(254)17x-3x+0.5=62.1(255)22x-35=31(256)10(2x-42)=180(257)3x+42=48(258)133-40x=13(259)15x-6x+40=121(260)0.9x+0.8×13=15.8(261)84-x=45(262)9.2x-3.9x=37.1(263)2(0.8x-5.4)=13.2(264)0.7x-0.8×7=1.4(265)(7x-17)÷46=1(266)15x+33×2=156(267)4x+3x+26=180(268)68+x=141(269)12x+6x+43=115(270)10x+2x+24=240(271)40x+21×0.7=22.7(272)16x-40=40(273)14x+18=88(274)7.6-x=3.2(275)x÷22=0.8(276)17.6-5x=8.1(277)90+x=173(278)22x=176(279)x+4.7=9.2(280)(19x+15)÷3=24(281)(11x-9)÷15=6(282)34x-5.4=11.6(283)176-7x=50(284)9.6+x=12.7(285)0.6x+0.4×47=23(286)4.4x+3.9x-0.2=116(287)14x+12x-29=101(288)15.4+5x=27.4(289)x+17=81(290)8x-58×2=84(291)9.9-5x=7.9(292)14+x=20(293)6x+1.5=9.3(294)17.6-2x=15.8(295)3x+31=112(296)2(2x+44)=164(297)9x+10x=342(298)6x-2.9=12.7(299)x÷62=3(300)5x+0.2x=41.6(301)x+4.7=5.4(302)60x÷6=3(303)59+x=115(304)5x+2x-30=131(305)x-1.7=7.4(306)3.6x=18(307)4.3x+7.2x+0.7=92.7(308)54x-11x-3.9=69.2(309)x÷43=0.4(310)0.8x-1.5=7.3(311)79x-73x+0.2=6.2(312)13.2+1.5x=26.7(313)4x+14x-10=26(314)5x-3x-28=40(315)5x=20(316)(3.5x+2.3)÷19=2.7(317)0.8x÷56=0.3(318)71x+37x+4.6=134.2(319)0.8x+9.5x-0.5=30.4(320)(5.2x+6.7)÷11=7.7(321)9-x=6(322)20x+11×10=170(323)2(6.5x+0.4)=26.8(324)104-15x=29(325)4x+55×2=214(326)98x+42x+1.5=85.5(327)3x=19.2(328)64x+18x-3.1=119.9(329)54÷x=27(330)1.3x+1.2x-1.6=148.4(331)(4.3x-2.4)÷35=0.3(332)2.1x-5.1=3.3(333)x÷2=1.8(334)x÷40=3(335)2x+5x+16=254(336)5x-3.9x-4.4=12.1(337)5x-7×5=55(338)10x=8(339)3x+7x=160(340)13.1+3x=25.1(341)5.6x-0.6x-2.9=12.1(342)(8x-17)÷3=21(343)16.3-0.5x=5.3(344)3(0.7x-5.9)=9.6(345)x-2.3=1.7(346)28÷x=7(347)11x+3×4.4=20.9(348)2.5+x=7.9(349)2x+55=197(350)4x-11×0.8=3.2(351)15x÷12=1(352)17(0.4x-1)=23.8(353)0.7x+0.7×27=22.4(354)6+x=102(355)11x-2x=63(356)53x=15.9(357)(4x-26)÷2=45(358)15.9+40x=23.9(359)(6.1x+8.5)÷11=4.1(360)8x=88(361)x÷4=45(362)(7x-2)÷3=11(363)179-5x=89(364)4.4÷x=2.2(365)47+x=117(366)x-37=10(367)12x+19x=310(368)8.8x-3.7x+2.9=18.2(369)4(0.2x-1.2)=11.2(370)7.9-x=7.7(371)3x-0.5x=30(372)10.8+4x=17.2(373)2x-49×3=15(374)3.1x-0.2x=11.6(375)94x-19x-2.7=49.8(376)8.2x+1.5x-4.8=82.5(377)53x-25=81(378)1.9x+0.9×11=25.1(379)(8x-47)÷41=1(380)3x÷5=2.1(381)94+20x=254(382)11x-7x=16(383)0.5x+3.4=21.9(384)0.9x=17.1(385)0.6x-2×8=3.2(386)72x-56x-3.5=10.9(387)9x÷8=18(388)1.6x-3.5=2.9(389)6x-26=88(390)31x+4.5=20(391)x-32=10(392)18.3-1x=3.3(393)29x-2×3.6=4.4(394)1.7x+4.1×2=13.3(395)(19x+40)÷2=39(396)73x=14.6(397)4.6x+3.1x=23.1(398)14.9+0.2x=25.5(399)4x-2x-6=90(400)15x-3x=84(401)69-x=52(402)x÷8=3(403)9.4x+2.2x=104.4(404)9x=63(405)8.6x-4.2x=22(406)17.4-0.5x=6.4(407)74x-35x-4.5=30.6(408)x÷17=0.5(409)8.3+16x=13.1(410)69x+30x+4.6=54.1(411)0.5x÷65=0.3(412)(13x-21)÷20=10(413)4.3-0.7x=1.5(414)7.4-x=2.5(415)26(2x-4.3)=44.2(416)2x=22(417)0.6x÷2=4.8(418)2.8x+5.6x+3.1=103.9(419)13x+28=171(420)27x+53=161(421)(2.2x-4)÷10=1.8(422)x-48=45(423)5(3x+24)=150(424)9x+2x+22=154(425)1.4x+0.8×7=23.8(426)3x=6(427)107+3x=119(428)0.8x÷40=0.3(429)83x-58x-3.6=23.9(430)15x+3x=144(431)48x-46=146(432)14x-5x=63(433)2x-3×1.5=3.3(434)20x+3×1.8=23.4(435)5x+2x+36=176(436)15x+17x-1.3=120.3(437)63x-24x-0.4=46.4(438)1.5x+5.7=20.7(439)64x-41x+2.1=18.2(440)x-0.8=9(441)38x-33x+3.1=13.6(442)0.2x+5.4=11.8(443)6x-2x=60(444)1.9x+5.9x=62.4(445)x+56=86(446)3.2+0.3x=8(447)0.7x+4.9x+0.6=34.2(448)4+0.4x=5.6(449)16(0.9x-8.7)=33.6(450)3(2x-12)=156(451)5x-2×30=130(452)25x-5×1=12.5(453)x+9.1=14(454)17x-5.2=1.6(455)x-0.2=7.2(456)(11x+8)÷35=4(457)4(3.4x-7.7)=23.6(458)0.4+x=8.4(459)2(2.7x+1.6)=24.8(460)0.7x-3.8=8.1(461)44-x=38(462)10x+8x-14=202(463)8x+15x-34=265(464)23x-12x+4.6=31(465)14x-6x=40(466)140÷x=4(467)14x+32=130(468)96÷x=48(469)5x+2x+45=157(470)7.7x+7.8x=46.5(471)0.2x+1.9x-2.6=73(472)0.4x÷12=1.5(473)(8x+42)÷2=49(474)47x+41x+0.7=71.1(475)(5.5x+6.3)÷2=33.4(476)x÷3=24(477)2(13x+47)=198(478)49x+4.2=23.8(479)19x+16×1.1=36.6(480)6.6x-2.3x+4.7=17.6(481)0.3x+1.8=4.8(482)10.8+4x=27.2(483)0.6x+1.3x=34.2(484)3.9+x=4.4(485)1.4x+0.8x+2.7=9.3(486)82-x=56(487)112+2x=180(488)(8.3x-6.5)÷15=5.1(489)9.8+0.3x=26.9(490)3x+10×4=79(491)4.4x-0.2×49=3.4(492)87-x=14(493)5.9x-2.1x-3.1=12.1(494)5x+59x-1.1=56.5(495)51-5x=21(496)5x-0.4x=9.2(497)9x+11x+4.5=44.5(498)2x=60(499)3x-21=66(500)x÷5=3.3(501)8(0.3x+0.4)=48.8(502)4.8+x=7.3(503)12x-9x=39(504)16.4-2x=13.8(505)80x÷16=10(506)36x=7.2(507)61+4x=161(508)(16x+5)÷3=71(509)112-4x=100(510)(11x+17)÷7=15(511)8.2-x=3.4(512)22x÷55=0.2(513)86-x=31(514)19.6÷x=0.7(515)39-x=34(516)11x+15x+0.9=125.7(517)34x-45=57(518)14x÷6=7(519)17x-14x+34=55(520)16x-4×3.9=3.6(521)3.3x+2.1x-3.4=126.2(522)8.6+x=10.1(523)x-34=54(524)128÷x=16(525)8(7x+11)=200(526)8.1x-1.6x+3.5=49(527)7x-2x=60(528)7.4-2x=2.6(529)1.9x+1.9×9=24.7(530)8x+64x+4.3=47.5(531)3(3x+32)=141(532)8x-3×29=65(533)8x+5x-29=166(534)x-2.5=2.1(535)10x+5x=135(536)7x-2×21=35(537)11x+5x-35=205(538)16(x-28)=192(539)23x-12x+1.3=35.4(540)5x+53=128参考答案(1)x=3(2)x=3(3)x=2(4)x=1.6(5)x=1.6(6)x=36(7)x=47(8)x=7(9)x=42(10)x=28(11)x=32(12)x=16(13)x=61(14)x=10(15)x=152(16)x=2.3(17)x=9.1(18)x=6(19)x=13(20)x=3(21)x=14(22)x=0.6(23)x=23(24)x=0.3(25)x=18(26)x=7(27)x=46(28)x=0.2(29)x=1(30)x=18(31)x=1.9(32)x=15(33)x=44(34)x=1.4(35)x=8(36)x=0.3(37)x=23(38)x=1.5(39)x=9(40)x=7(41)x=15.6(42)x=15(43)x=10(44)x=14(45)x=14(46)x=16(47)x=6(48)x=10(49)x=7(50)x=14(51)x=1.2(52)x=5(53)x=3(54)x=4.1(55)x=6(56)x=38(57)x=0.3(58)x=11(59)x=6(60)x=7(61)x=6(62)x=3.7(63)x=5(64)x=0.9(65)x=8.3(66)x=28(67)x=10(68)x=81(69)x=1.3(70)x=6.3(71)x=5.3(72)x=51(73)x=35(74)x=36(75)x=99(76)x=25(77)x=4(78)x=10(79)x=1.6(80)x=4(81)x=3.8(82)x=5(83)x=20(84)x=0.2(85)x=94(86)x=3(87)x=6(88)x=0.5(89)x=6.7(90)x=2(91)x=11(92)x=7(93)x=37(94)x=28(95)x=15(96)x=37(97)x=27(98)x=33(99)x=33(100)x=8.2(101)x=4.9(102)x=0.2(103)x=13(104)x=13(105)x=5(106)x=8(107)x=14(108)x=8(109)x=31(110)x=10(111)x=3(112)x=3.7(113)x=9(114)x=72(115)x=3(116)x=9(117)x=24(118)x=2(119)x=16.8(120)x=7.4(121)x=24(122)x=3(123)x=3.9(124)x=8(125)x=3.1(126)x=13(127)x=27(128)x=6(129)x=161(130)x=7(131)x=6(132)x=89(133)x=26(134)x=9(135)x=25(136)x=10(137)x=1.8(138)x=0.9(139)x=2(140)x=8(141)x=4.9(142)x=20(143)x=59(144)x=1(145)x=39(146)x=2(147)x=4(148)x=10(149)x=31(150)x=6(151)x=1.7(152)x=10(153)x=18(154)x=25(155)x=24(156)x=9(157)x=25(158)x=2(159)x=4(160)x=10(161)x=1(162)x=7(163)x=2(164)x=0.2(165)x=9(166)x=4(167)x=2(168)x=0.9(169)x=2.9(170)x=20(171)x=7(172)x=9(173)x=5.3(174)x=2(175)x=49(176)x=2(177)x=21(178)x=0.4(179)x=13.5(180)x=0.4(181)x=4(182)x=2(183)x=5.2(184)x=16(185)x=12(186)x=0.4(187)x=7(188)x=3(189)x=24(190)x=3(191)x=2.3(192)x=16.5(193)x=75(194)x=0.4(195)x=10(196)x=13(197)x=20(198)x=7(199)x=27(200)x=6.9(201)x=49(202)x=35(203)x=0.9(204)x=11(205)x=0.6(206)x=9.2(207)x=80(208)x=34(209)x=11(210)x=2(211)x=17(212)x=6.3(213)x=10(214)x=2.2(215)x=18(216)x=2.4(217)x=18(218)x=11(219)x=0.4(220)x=71(221)x=5(222)x=5(223)x=24(224)x=5(225)x=176(226)x=6.7(227)x=4.7(228)x=2(229)x=13(230)x=13(231)x=20(232)x=3(233)x=10(234)x=3(235)x=6(236)x=14(237)x=68(238)x=1.2(239)x=0.4(240)x=23(241)x=0.4(242)x=54(243)x=4(244)x=4(245)x=2(246)x=2(247)x=10(248)x=7(249)x=0.6(250)x=32(251)x=0.3(252)x=1.4(253)x=8.3(254)x=4.4(255)x=3(256)x=30(257)x=2(258)x=3(259)x=9(260)x=6(261)x=39(262)x=7(263)x=15(264)x=10(265)x=9(266)x=6(267)x=22(268)x=73(269)x=4(270)x=18(271)x=0.2(272)x=5(273)x=5(274)x=4.4(275)x=17.6(276)x=1.9(277)x=83(278)x=8(279)x=4.5(280)x=3(281)x=9(282)x=0.5(283)x=18(284)x=3.1(285)x=7(286)x=14(287)x=5(288)x=2.4(289)x=64(290)x=25(291)x=0.4(292)x=6(293)x=1.3(294)x=0.9(295)x=27(296)x=19(297)x=18(298)x=2.6(299)x=186(300)x=8(301)x=0.7(302)x=0.3(303)x=56(304)x=23(305)x=9.1(306)x=5(307)x=8(308)x=1.7(309)x=17.2(310)x=11(311)x=1(312)x=9(313)x=2(314)x=34(315)x=4(316)x=14(317)x=21(318)x=1.2(319)x=3(320)x=15(321)x=3(322)x=3(323)x=2(324)x=5(325)x=26(326)x=0.6(327)x=6.4(328)x=1.5(329)x=2(330)x=60(331)x=3(332)x=4(333)x=3.6(334)x=120(335)x=34(336)x=15(337)x=18(338)x=0.8(339)x=16(340)x=4(341)x=3(342)x=10(343)x=22(344)x=13(345)x=4(346)x=4(347)x=0.7(348)x=5.4(349)x=71(350)x=3(351)x=0.8(352)x=6(353)x=5(354)x=96(355)x=7(356)x=0.3(357)x=29(358)x=0.2(359)x=6(360)x=11(361)x=180(362)x=5(363)x=18(364)x=2(365)x=70(366)x=47(367)x=10(368)x=3(369)x=20(370)x=0.2(371)x=12(372)x=1.6(373)x=81(374)x=4(375)x=0.7(376)x=9(377)x=2(378)x=8(379)x=11(380)x=3.5(381)x=8(382)x=4(383)x=37(384)x=19(385)x=32(386)x=0.9(387)x=16(388)x=4(389)x=19(390)x=0.5(391)x=42(392)x=15(393)x=0.4