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)15.5-0.6x=8.3(2)9x-6x=24(3)52x+80x-2.6=37(4)1x+1.3×7=28.1(5)10.4+36x=17.6(6)9.5-0.5x=8.5(7)40x-13x-1.2=6.9(8)4.6x-0.5×2=8.2(9)2x-4×0.3=4.6(10)6x-2x-26=66(11)5x-21×3=122(12)x÷16=0.6(13)9.5÷x=0.5(14)0.2x+3.3x+3.9=59.9(15)33x+13=112(16)12.7+3x=24.1(17)25x+40=215(18)1.4x+7.7x=45.5(19)2.4x-2.2×4=5.6(20)x+53=149(21)1x÷36=0.5(22)3.9x-2.2×4=2.9(23)49x-35=161(24)6x-2x-47=49(25)2.6x+5.9=21.5(26)x+18=98(27)3x+2.8×7=25.6(28)2.3x+2x-2=101.2(29)96÷x=48(30)7.4x-4.9x+3.7=16.2(31)3(7x+36)=171(32)5x÷2=25(33)0.2x+1.3x+0.5=71(34)1.4x+0.6x-3.2=104.8(35)27x+36×2=180(36)7.5x-1.9x+3.4=70.6(37)4.5-5x=2.5(38)20x-17=143(39)(5.8x+4)÷2=36.8(40)9.2÷x=0.4(41)88-x=85(42)11x+14x-4.4=168.1(43)5.3x-0.7x-0.6=27(44)x÷6=3.2(45)6.7x+7.7x=57.6(46)128+28x=324(47)x÷70=0.2(48)10(0.3x-6.4)=44(49)x÷7=15(50)7.4x-3.2x=29.4(51)30x+4.1=10.1(52)x÷8=24(53)2(12x-6)=132(54)3x+6x+32=104(55)2x+3.1=4.5(56)0.6x-3.4=15.2(57)84x-16x-1.3=53.1(58)5x=135(59)93x+3.7=22.3(60)78÷x=39(61)104÷x=26(62)1.8x÷15=0.6(63)9.8x-2.7x-1.3=41.3(64)17.5-19x=6.1(65)13(8x-26)=182(66)(19x-28)÷7=15(67)27x-25×0.3=8.7(68)16x-7x+1.7=23.3(69)144÷x=6(70)19x+46x+3=35.5(71)(17x+31)÷8=23(72)3(5.1x+4.9)=45.3(73)x+19=45(74)95x+81x+3.4=109(75)x+8.8=16.4(76)5x+9x-0.9=83.1(77)(7.1x-3.8)÷7=9.6(78)x÷2=1.3(79)0.9x+0.4×2=19.7(80)9x+4x+37=102(81)30x-2.1=12.9(82)22x=44(83)6.1x+4.2x-2.7=79.7(84)x+92=178(85)x-12=48(86)17.4-1.2x=9(87)49x-3x+3.6=63.4(88)0.7x-4.2=7(89)2.5x+0.4×27=18.3(90)9.9x-5.6x-1.7=28.4(91)8.7x+1.1x-4.7=73.7(92)x÷4=2.2(93)5.5x+4.6x=141.4(94)1.3x+0.4×25=16.5(95)15x+18x-41=25(96)1.1x+5.2=11.8(97)12x÷6=2.6(98)2.1x-1.4x=18.2(99)x-4=2.5(100)18.1-0.8x=10.9(101)(11x-19)÷17=6(102)2.3x=18.4(103)3.7+x=10(104)x+59=148(105)3x=17.7(106)13.5÷x=0.5(107)26x-14=168(108)18.1-21x=3.4(109)15.9-2.2x=4.9(110)2x-46=152(111)10x-2x=112(112)2x+12×16=288(113)93-3x=36(114)9x+7×2.6=32.6(115)7(0.7x-1.7)=32.2(116)6x÷63=2(117)(12x-15)÷9=17(118)5x+3×4.4=26.7(119)8.8x+2.4x+3=70.2(120)0.7x-4.1=13.4(121)(14x+42)÷28=9(122)8.1-x=2.9(123)2÷x=0.2(124)1.7x-0.3×7=14.9(125)0.9x÷21=0.3(126)14x-9x-10=20(127)2.5x+1.8x=51.6(128)2(x+17)=62(129)3.6x+5.6=12.8(130)4.8-x=2.2(131)1.7x-0.4×2=11.1(132)9x+2x=198(133)72x+57x-4.6=34.1(134)x-56=11(135)20x=8(136)x-3.2=1.3(137)37-x=11(138)11x-9x+5=19(139)3x-4×1.7=5.2(140)2x+13=145(141)153+23x=199(142)x-0.5=8.9(143)13x+13=169(144)1.6x÷22=0.8(145)4x=12(146)19x+44x+2.6=141.2(147)7.5÷x=0.3(148)(2x-4)÷4=10(149)x-63=30(150)8x+2×68=264(151)20x+62x+1.8=92(152)4x+69x-2.6=92.3(153)11x-44×0.2=5.5(154)61x+51x-3.7=97.1(155)9x+6.5x-2=29(156)(4x+20)÷9=8(157)0.4x-3.2=6.4(158)136-2x=62(159)18x÷36=0.4(160)63+x=66(161)1.9x+1.1=10.6(162)3(11x+33)=165(163)3(0.5x+3.9)=46.2(164)72÷x=4(165)7.5x-3.8x=37(166)(2.9x-5.2)÷6=5.9(167)2(x+4.3)=48.6(168)17x-12x=40(169)11x+15x=260(170)18x÷24=3(171)36x-13=59(172)1.3x+4.4x=91.2(173)0.2x+2.2=14.2(174)74-x=38(175)7(3.1x-7.7)=32.9(176)15x-59=91(177)2.1x+0.4×2=13.4(178)(14x+28)÷7=12(179)0.4x÷2=1.4(180)2.2x-4=4.8(181)13+x=90(182)x÷3=27(183)28x=5.6(184)7x+5x+15=195(185)x+6.3=13.8(186)9x+1.2=12(187)13.1+1.6x=16.3(188)14x+16x+26=296(189)4.4x÷11=1.2(190)13(10x-40)=130(191)66x-12x-1=26(192)12x-2x-10=30(193)8+3.6x=26(194)24x+30×0.5=29.4(195)x-25=61(196)1.8x+0.7×18=30.6(197)129÷x=43(198)11.8-0.2x=6(199)76+x=149(200)4x÷48=0.2(201)8x÷20=0.4(202)0.2x÷36=0.4(203)49x÷28=0.7(204)(17x-20)÷5=47(205)0.2x+3.1x=13.2(206)6.1x+2.9x=90(207)16x-13x+36=72(208)2x+3x=310(209)14.9+3x=22.4(210)17.4-3.8x=6(211)(3.5x-9.9)÷4=12.4(212)13x-36×2=45(213)17-14x=7.2(214)x÷57=2(215)0.3x+3.9=21.3(216)24x=19.2(217)2.2+37x=13.3(218)x÷7=0.9(219)13x-2×0.4=18.7(220)16x-9x+2.7=35.6(221)3.8+x=13(222)9.5x-4.5x+3.9=18.9(223)(4.5x+9.5)÷23=1(224)13.5-2x=11.3(225)67-x=65(226)1.4x+1.2x+3.8=123.4(227)13x+4x+23=278(228)10.4+3x=23(229)95x+56x+3.6=109.3(230)15x-2x+30=82(231)(7x+17)÷2=26(232)(7.1x+7.6)÷18=2(233)17x-17×0.2=13.6(234)2x-2.2=9.4(235)x-2.2=7.3(236)16x=176(237)5.9x-3.1x+0.9=23.3(238)33x=198(239)11x+16x=135(240)73x=146(241)x+2.5=9(242)(1.9x+3.8)÷2=11.4(243)3(x+3.7)=47.1(244)17(1.5x-1.8)=45.9(245)6x÷2=2.1(246)8.6x-4.7x=23.4(247)19.8÷x=0.6(248)4(1.2x+2.7)=34.8(249)26x-12x-2.5=3.1(250)10.2+10x=18.2(251)6x-1.8x+1.5=68.7(252)1.4x-1.5×7=4.9(253)2x÷23=0.4(254)5.6x+0.5x=97.6(255)12x+14x=52(256)x-11=59(257)5.3+x=14.3(258)4x-1.2=6.8(259)6x+5×16=206(260)7(2x+6)=98(261)80+x=161(262)4(15x-31)=56(263)14÷x=2.8(264)2(4x+2)=172(265)66+11x=176(266)57x÷9=19(267)5x÷2=1(268)32x+54x-4=107.8(269)5x-22×2=66(270)5x-2x=96(271)5x+9x=42(272)39x-11x-3.6=13.2(273)5.4x-5x=4.8(274)2(17x+8)=84(275)80+x=125(276)15x+18x-18=345(277)10x-4x+42=78(278)3.7+x=7.8(279)7x=2.1(280)1.3x-0.2x=6.6(281)18x-3=6(282)69x+42x+0.6=144.9(283)62÷x=2(284)4x+4.2=19(285)17x+11x-21=147(286)12x-4×9=12(287)(10x-37)÷33=1(288)x+4=100(289)48x-27x+4.8=15.3(290)24(0.4x-8.5)=26.4(291)2(2.9x-9.1)=39.8(292)10x+12x+49=247(293)5.5+x=12.7(294)175+23x=359(295)180+3x=291(296)12.1-0.7x=3(297)2.7x-1.7x-2.6=11.4(298)29x-13x-1=51.8(299)65x-5.7=7.3(300)x-3.8=3.7(301)14(5x-12)=182(302)2.1x-0.6×23=5.1(303)x-5.1=1.5(304)6x-38×4=46(305)3x+5x=72(306)1.8x-0.7x=52.8(307)x+29=51(308)15x-4x-10=12(309)23x+5×22=179(310)16x-6x-2.1=30.9(311)3(x-35)=33(312)x-30=38(313)5(x-38)=50(314)4.8x=14.4(315)6x-4x+48=106(316)x+65=154(317)182-9x=74(318)x÷89=2(319)8.2x+4.2x+4.2=41.4(320)4(1.6x-0.5)=49.2(321)x-5.1=3(322)11x+6x-46=209(323)10x+5.5=20.5(324)18x-12x=30(325)36x-29x+0.7=14(326)155-6x=17(327)180-6x=102(328)18x-5=14.8(329)x+2.3=3.6(330)24x+2×1.6=10.4(331)18x-5x-32=59(332)2.1x÷9=1.4(333)177+4x=245(334)3x÷40=0.3(335)x-5=3.5(336)81x+43x+2.9=40.1(337)2(0.4x+0.8)=19.2(338)3x+30×5=312(339)x+7.9=11.7(340)78-x=58(341)12x-23×3=39(342)3.3x+5.1=21.6(343)83-x=51(344)x+51=124(345)14.4+0.2x=34.4(346)175-30x=85(347)5x-5.9=13.1(348)(6x-20)÷25=4(349)14x-7x-11=80(350)(17x+43)÷29=5(351)3x+45=84(352)76x-27x-2.1=37.1(353)4.6x-2x-1.5=19.3(354)13x+12x=100(355)19.8+0.3x=39.6(356)5x+2x-48=211(357)26x+16×0.5=18.4(358)16x-2x+42=112(359)9.7-x=8.9(360)9x+8x-42=179(361)5.1x-3.8x-1.5=18(362)17.6-47x=8.2(363)0.3x=6(364)x÷71=2(365)x+9.5=17.7(366)40x-10=150(367)4(5.7x+0.5)=47.6(368)(14x-10)÷8=4(369)56x+52x+3.8=79.4(370)4(1.2x+5.8)=37.6(371)x÷3=29(372)4.3x-2.2=10.7(373)25x=75(374)1.8+46x=15.6(375)2x+11x=39(376)14.8÷x=0.2(377)10x+3x+31=187(378)x÷21=0.4(379)2x+11×1=16(380)19x-8x+45=67(381)(9.6x-8)÷4=7.6(382)4.3+x=10.7(383)39x-23x+1.7=19.3(384)6.2x+3.7x+2.7=22.5(385)49x÷14=7(386)13x-6x-49=14(387)22x-3.5=16.3(388)0.9x=19.8(389)4x-11×6=122(390)5.1-x=4.7(391)4.6x-1.3=12.5(392)6.2+0.4x=21(393)2x=128(394)(2x-6.9)÷9=1.9(395)11x+3x-0.6=93.2(396)15x+52=127(397)17x+94x-4.8=72.9(398)13x=14.3(399)(1.6x-4.4)÷2=7.4(400)x-85=10(401)2x-4.1=12.7(402)x÷53=0.2(403)21x+2×69=180(404)0.3x=8.1(405)8x+6×0.7=21.8(406)4.8x-4.2x-1.5=7.5(407)2x÷60=3(408)4x+33×0.3=27.1(409)(13x+7)÷4=18(410)2(19x-21)=72(411)42x-26x-2.6=23(412)5.7x-0.2x+0.2=93.7(413)144÷x=48(414)x÷13=1.2(415)8x-3×1.1=7.9(416)7.9+x=17.8(417)0.2x=11.8(418)5-x=4.3(419)114÷x=38(420)3.2x-0.6x-0.2=38.8(421)6.2-x=3.5(422)16.6+1.1x=26.5(423)2.1x-1.8x-2.4=1.5(424)170+6x=368(425)92x+6x-3.8=35.4(426)32x÷64=2(427)0.2x=9.2(428)89x+60x+2.5=121.7(429)2x=6(430)4x+2x-13=203(431)5x=55(432)9x-2x-10=130(433)8x=168(434)36x-1.4=16.6(435)(6x+32)÷22=8(436)18x-7×2=166(437)12.1+0.6x=21.1(438)1.4x-3.3×4=3.6(439)15x+47×2=124(440)14x-6x=32(441)8.4-x=4.9(442)87-2x=29(443)58-x=31(444)15.3+10x=18.3(445)18.6÷x=0.6(446)9.1+x=17.7(447)15x+2x-14=122(448)8.7x-6.5x+1.3=25.5(449)95+x=161(450)(14x-26)÷15=16(451)1x+0.2x=45.6(452)x÷2=3(453)0.4x+9.1x-4=62.5(454)4(1.4x-8.1)=29.2(455)18x+54=198(456)(5.3x+4.3)÷27=3.3(457)0.5x+3.7=12.7(458)75-5x=65(459)3x-21=108(460)(7.4x-7.8)÷6=13.5(461)1.3x+3.6x+1.8=55.7(462)7x-5×15=107(463)8x+2x-29=41(464)1.9x+2.4x+2.8=123.2(465)5x-2x+25=43(466)11x-9x+17=41(467)18x+35=179(468)2(2x+20)=196(469)17.1+0.3x=33.3(470)4.6-x=3.1(471)x+9.7=9.9(472)x+8.6=9(473)3(1.8x+1.5)=15.3(474)2(2x+37)=94(475)2x+3.1=9.9(476)14.9-6x=1.1(477)(3.6x+3.2)÷2=8.8(478)2(19x+32)=178(479)x-3.1=4.4(480)x-14=39(481)12.5+2.7x=23.3(482)9.4-0.6x=7.6(483)18x+16x+21=327(484)2(0.6x-2)=9.2(485)x+1.1=8.5(486)0.9x-2.8=2.6(487)(6.9x+4.5)÷39=1(488)x÷31=6(489)(4.3x+1.3)÷5=3.7(490)3x-2.1x+1.1=23.6(491)81x+1.4=17.6(492)3x-41=52(493)8.9-x=3.9(494)111+9x=192(495)18x÷90=2(496)7x-4×0.3=5.8(497)0.6x-3.2×3=5.4(498)4.1x=8.2(499)129+54x=291(500)19x+2.2=19.3(501)8.1+x=11.8(502)92x-38x+2.9=19.1(503)51x-42x+2.8=6.4(504)(4.3x+9.2)÷26=3(505)9.2-2x=4.4(506)9x=1.8(507)9x-14×0.8=5.9(508)8x+5×3.4=30.6(509)(8.6x-7.6)÷2=17.7(510)15x-4x=132(511)13x+3×13=130(512)8.2+17x=13.3(513)60-x=57(514)(7.7x-2.7)÷5=16.4(515)175-68x=39(516)6x÷3=3.8(517)6.7x-3.1x+1.8=23.4(518)2x-1.3x=33.6(519)73+x=95(520)61+x=145(521)4.7x+5.7x+0.5=104.5(522)17x-6x=22(523)25+x=39(524)12x-10x=28(525)2x+11x+20=72(526)(x+47)÷27=2(527)1.7x+2.1=14(528)x-23=17(529)1.1x+0.5x-2.3=136.9(530)89x-69x+2.4=6.4(531)1.2x+6.6x-2.9=82.9(532)5x÷50=4(533)0.2x=2.8(534)38-x=13(535)87x+41=215(536)0.3x+1.1×17=33.1(537)19.4-3x=2(538)9(17x-13)=189(539)2.1x+3.1×2=10.4(540)7x-1.3x=62.7参考答案(1)x=12(2)x=8(3)x=0.3(4)x=19(5)x=0.2(6)x=2(7)x=0.3(8)x=2(9)x=2.9(10)x=23(11)x=37(12)x=9.6(13)x=19(14)x=16(15)x=3(16)x=3.8(17)x=7(18)x=5(19)x=6(20)x=96(21)x=18(22)x=3(23)x=4(24)x=24(25)x=6(26)x=80(27)x=2(28)x=24(29)x=2(30)x=5(31)x=3(32)x=10(33)x=47(34)x=54(35)x=4(36)x=12(37)x=0.4(38)x=8(39)x=12(40)x=23(41)x=3(42)x=6.9(43)x=6(44)x=19.2(45)x=4(46)x=7(47)x=14(48)x=36(49)x=105(50)x=7(51)x=0.2(52)x=192(53)x=6(54)x=8(55)x=0.7(56)x=31(57)x=0.8(58)x=27(59)x=0.2(60)x=2(61)x=4(62)x=5(63)x=6(64)x=0.6(65)x=5(66)x=7(67)x=0.6(68)x=2.4(69)x=24(70)x=0.5(71)x=9(72)x=2(73)x=26(74)x=0.6(75)x=7.6(76)x=6(77)x=10(78)x=2.6(79)x=21(80)x=5(81)x=0.5(82)x=2(83)x=8(84)x=86(85)x=60(86)x=7(87)x=1.3(88)x=16(89)x=3(90)x=7(91)x=8(92)x=8.8(93)x=14(94)x=5(95)x=2(96)x=6(97)x=1.3(98)x=26(99)x=6.5(100)x=9(101)x=11(102)x=8(103)x=6.3(104)x=89(105)x=5.9(106)x=27(107)x=7(108)x=0.7(109)x=5(110)x=99(111)x=14(112)x=48(113)x=19(114)x=1.6(115)x=9(116)x=21(117)x=14(118)x=2.7(119)x=6(120)x=25(121)x=15(122)x=5.2(123)x=10(124)x=10(125)x=7(126)x=6(127)x=12(128)x=14(129)x=2(130)x=2.6(131)x=7(132)x=18(133)x=0.3(134)x=67(135)x=0.4(136)x=4.5(137)x=26(138)x=7(139)x=4(140)x=66(141)x=2(142)x=9.4(143)x=12(144)x=11(145)x=3(146)x=2.2(147)x=25(148)x=22(149)x=93(150)x=16(151)x=1.1(152)x=1.3(153)x=1.3(154)x=0.9(155)x=2(156)x=13(157)x=24(158)x=37(159)x=0.8(160)x=3(161)x=5(162)x=2(163)x=23(164)x=18(165)x=10(166)x=14(167)x=20(168)x=8(169)x=10(170)x=4(171)x=2(172)x=16(173)x=60(174)x=36(175)x=4(176)x=10(177)x=6(178)x=4(179)x=7(180)x=4(181)x=77(182)x=81(183)x=0.2(184)x=15(185)x=7.5(186)x=1.2(187)x=2(188)x=9(189)x=3(190)x=5(191)x=0.5(192)x=4(193)x=5(194)x=0.6(195)x=86(196)x=10(197)x=3(198)x=29(199)x=73(200)x=2.4(201)x=1(202)x=72(203)x=0.4(204)x=15(205)x=4(206)x=10(207)x=12(208)x=62(209)x=2.5(210)x=3(211)x=17(212)x=9(213)x=0.7(214)x=114(215)x=58(216)x=0.8(217)x=0.3(218)x=6.3(219)x=1.5(220)x=4.7(221)x=9.2(222)x=3(223)x=3(224)x=1.1(225)x=2(226)x=46(227)x=15(228)x=4.2(229)x=0.7(230)x=4(231)x=5(232)x=4(233)x=1(234)x=5.8(235)x=9.5(236)x=11(237)x=8(238)x=6(239)x=5(240)x=2(241)x=6.5(242)x=10(243)x=12(244)x=3(245)x=0.7(246)x=6(247)x=33(248)x=5(249)x=0.4(250)x=0.8(251)x=16(252)x=11(253)x=4.6(254)x=16(255)x=2(256)x=70(257)x=9(258)x=2(259)x=21(260)x=4(261)x=81(262)x=3(263)x=5(264)x=21(265)x=10(266)x=3(267)x=0.4(268)x=1.3(269)x=22(270)x=32(271)x=3(272)x=0.6(273)x=12(274)x=2(275)x=45(276)x=11(277)x=6(278)x=4.1(279)x=0.3(280)x=6(281)x=0.5(282)x=1.3(283)x=31(284)x=3.7(285)x=6(286)x=4(287)x=7(288)x=96(289)x=0.5(290)x=24(291)x=10(292)x=9(293)x=7.2(294)x=8(295)x=37(296)x=13(297)x=14(298)x=3.3(299)x=0.2(300)x=7.5(301)x=5(302)x=9(303)x=6.6(304)x=33(305)x=9(306)x=48(307)x=22(308)x=2(309)x=3(310)x=3.3(311)x=46(312)x=68(313)x=48(314)x=3(315)x=29(316)x=89(317)x=12(318)x=178(319)x=3(320)x=8(321)x=8.1(322)x=15(323)x=1.5(324)x=5(325)x=1.9(326)x=23(327)x=13(328)x=1.1(329)x=1.3(330)x=0.3(331)x=7(332)x=6(333)x=17(334)x=4(335)x=8.5(336)x=0.3(337)x=22(338)x=54(339)x=3.8(340)x=20(341)x=9(342)x=5(343)x=32(344)x=73(345)x=100(346)x=3(347)x=3.8(348)x=20(349)x=13(350)x=6(351)x=13(352)x=0.8(353)x=8(354)x=4(355)x=66(356)x=37(357)x=0.4(358)x=5(359)x=0.8(360)x=13(361)x=15(362)x=0.2(363)x=20(364)x=142(365)x=8.2(366)x=4(367)x=2(368)x=3(369)x=0.7(370)x=3(371)x=87(372)x=3(373)x=3(374)x=0.3(375)x=3(376)x=74(377)x=12(378)x=8.4(379)x=2.5(380)x=2(381)x=4(382)x=6.4(383)x=1.1(384)x=2(385)x=2(386)x=9(387)x=0.9(388)x=22(389)x=47(390)x=0.4(391)x=3(392)x=37(393)x=64(394)