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)(7x+0.4)÷24=0.6(2)29x+72x+3.4=43.8(3)0.5x-2.6×7=1.3(4)1.5x+2.2=9.7(5)16x+7x+4=73(6)22x-2.9=10.3(7)12x+4x+28=236(8)10x÷7=2(9)0.3x=14.1(10)6-x=3.5(11)9.1-8x=7.5(12)2.8x+0.3×42=29.4(13)5x+13×4=247(14)3x=18.3(15)8x+13x+32=284(16)95x-53x-2.5=5.9(17)3(0.9x+5.1)=28.8(18)x÷17=10(19)44x-37=51(20)26x+66x+1.2=120.8(21)0.5x=2(22)2.2x-2.8×3=11.4(23)2+0.6x=8.6(24)(9.8x+8)÷3=19(25)x+0.6=7.4(26)x+0.4=1.2(27)48+x=127(28)0.5x=18(29)2x+42=174(30)x+44=52(31)x-5.5=2.1(32)18x-2×59=44(33)3.4-x=1.1(34)1.3x-0.2x-1.6=41.3(35)2.8x-1.3x+0.6=36.6(36)5(2x+27)=195(37)87x-12x+3.5=86(38)(0.6x-4.6)÷2=2.2(39)18x-19=53(40)6(3.6x-9.7)=28.2(41)6.6x=13.2(42)9.9+x=12.8(43)0.3x÷12=1.5(44)x÷5=2(45)8.2+x=14.3(46)x-35=54(47)60x+68x-0.6=63.4(48)(5x+41)÷19=4(49)2x÷8=1.6(50)2x+5.1=8.7(51)0.3x+1.3=5.8(52)2x+0.2×21=8.2(53)8.3x+2x=92.7(54)15÷x=1.5(55)2x+2.9x-0.5=166.1(56)83x+66x+1.2=180(57)(13x-19)÷33=1(58)16x+13×1.2=25.2(59)61x+24x-3.9=47.1(60)3x÷9=1.2(61)61x-32x-2.5=43.9(62)9.5+60x=21.5(63)4x-3.1x+0.7=18.7(64)15x-5.2=6.8(65)0.8x+1.1x-0.8=60(66)15x+6×10=225(67)60x+17x+2.8=25.9(68)2.9+0.2x=15.3(69)49x+9×1.3=31.3(70)2(0.3x+2.2)=27.2(71)6x=30(72)13.5÷x=2.7(73)17.6-0.6x=2(74)2.7x-0.5x=4.4(75)11(1.6x-9.1)=23.1(76)8x-3x=25(77)2x+36=220(78)7.3-2.9x=1.5(79)1.8x+0.2×27=21.6(80)x-2.4=6.9(81)16.3-3x=2.8(82)4.1x-3.7=8.6(83)7.2÷x=2.4(84)28+x=51(85)24x=12(86)11x+6x+17=51(87)12x-32=100(88)11x+6x-29=175(89)x+54=111(90)8.6-x=4.6(91)(5x+6.8)÷9=10.2(92)170÷x=2(93)x-17=47(94)32x+37x-0.2=27.4(95)4.5x÷9=1.5(96)87-x=46(97)15x-10x-0.6=23.9(98)17x-10x=28(99)12.3-17x=7.2(100)7x-3×3.6=1.8(101)8.5-x=5.4(102)4(0.2x+2.7)=42(103)6.3x+2.5x+1.2=124.4(104)2x+16x=126(105)9.6x-1.9x=53.9(106)34x=17(107)5.1x+4.3x-4.4=164.8(108)(4.2x-0.3)÷33=0.5(109)8x-3x+11=81(110)1.7x+0.5x+3.9=67.7(111)9.1-x=8.8(112)10x-9×1=3(113)x-54=28(114)50x-12x+4.3=42.3(115)52x÷12=13(116)9.9+x=17.2(117)73x+19x-2.1=62.3(118)5.7+x=8.4(119)2x+4x+9=141(120)37x+5.1=23.6(121)195÷x=39(122)15.7-1x=5.7(123)4.1+3x=15.5(124)11(17x-23)=121(125)91+x=96(126)4x-2x=34(127)185-19x=71(128)11(x-26)=143(129)4.4+x=13.4(130)5.3+16x=19.7(131)2(2.3x+7.6)=47.4(132)88x÷4=4.4(133)174÷x=3(134)2(x+2)=14(135)8x-52=12(136)164-51x=11(137)3x+7.7x=21.4(138)1.2x+3.5x-4.6=61.2(139)4x+5x-39=285(140)0.6x-0.4x=2.2(141)19x=15.2(142)5x+21×0.9=30.9(143)11x-7x-42=18(144)0.2x+0.7x=66.6(145)0.4x-4.5=11.1(146)(19x-15)÷20=4(147)20x=160(148)x+4.4=4.6(149)(5.1x-5.7)÷16=5.7(150)3x÷27=7(151)4x-41=43(152)x÷5=10(153)22x-4=7(154)15(0.2x-5.3)=37.5(155)x-16=83(156)3.1x+2.2x+4.9=126.8(157)37x-24x-0.6=3.3(158)78x+12=168(159)x-68=14(160)8.4x-0.2x-3.4=78.6(161)7.3+8x=12.1(162)13x+18x+47=264(163)2x+20=190(164)4x+19x-21=117(165)(11x+27)÷2=140(166)2(4x-10)=196(167)29x+4×1=12.7(168)4.2+x=7.6(169)x÷75=2(170)4x-2x-8=90(171)x÷9=1.1(172)x+95=171(173)72-x=27(174)3.2x-1.6x+4.7=25.5(175)10x-6x+9=85(176)x-2=53(177)(3.9x+6)÷33=1.6(178)x+6=15.6(179)5.4-3x=2.4(180)5x-34×0.3=3.8(181)5.2x-3.9=6.5(182)4x+24=104(183)6.5x-4.9x=17.6(184)186-9x=114(185)9x-3×14=57(186)9x-3x-9=81(187)0.5x-4.2=3.3(188)1x-2.7=9.3(189)16x-7x+32=77(190)3.9x+8x=59.5(191)9x+8x-2.4=131.9(192)135-2x=65(193)40-x=32(194)72x-2.2=12.2(195)0.5x+1.4=16.4(196)0.3x+2×4=17.3(197)27x+68x-3.2=72.8(198)5(0.2x-3.3)=24.5(199)8x-5x=12(200)5x-2x+38=95(201)2(0.2x+7.4)=20(202)11x+14×11=297(203)x÷3=1.7(204)1.8x+0.6x+3.1=127.9(205)3.7+x=11.9(206)0.8x+2.9×5=16.9(207)8(x+3)=120(208)0.4x-5.4=12.6(209)104-21x=62(210)3x+22=220(211)9.6-x=4.6(212)15x-2.5=5(213)12.9-0.5x=3.9(214)0.9x+4.8=20.1(215)14.5÷x=0.5(216)2(4x+18)=124(217)23x-2×0.6=10.3(218)85-x=78(219)x÷14=0.2(220)1.6+0.8x=12.8(221)1.3x-0.2×35=12.5(222)3.1x-0.4×9=2.6(223)3x+1.9=10.6(224)28x-48=36(225)11+x=72(226)77x-46x+1.5=10.8(227)(6.7x-1.2)÷27=0.7(228)6x-3x+24=120(229)8x-1.6x=76.8(230)6x-4.3x+0.2=7(231)6x+19x+3=253(232)x÷24=0.6(233)19.2÷x=3.2(234)87x=17.4(235)4x+2×91=222(236)x+78=85(237)3(1.3x+9)=34.8(238)(5.9x+6.9)÷7=11.1(239)3(2x+5)=195(240)0.4x÷12=1.5(241)9.9x-3x+3.5=31.1(242)8.8x-1.5x-1.9=56.5(243)7x-7×14=56(244)13.2-2x=12.6(245)7x+6x+48=243(246)87+27x=195(247)12x+5x=34(248)9x-2=16(249)(8x+10)÷30=7(250)1.8x-0.4×14=10.6(251)26+7x=103(252)x+37=62(253)159+3x=243(254)7.2x+2.9x=30.3(255)2x+5.9=6.7(256)3.4+0.6x=11.2(257)3(1.1x+1.2)=36.6(258)0.7x+3.4×4=26.9(259)90-x=72(260)90÷x=2(261)38x-3x+1.2=57.2(262)5.7x-4.9x+4.3=15.5(263)17x-5x-17=79(264)11(3x-14)=176(265)18.9-0.4x=16.5(266)94+24x=214(267)48+x=105(268)5x-2x=42(269)10x+16×12=352(270)(3x+20)÷4=17(271)14x-5x=54(272)78x+58x+0.8=68.8(273)0.2x=18.2(274)8x+9x=238(275)x-41=51(276)18x-10x-24=24(277)6.5+3.1x=25.1(278)0.9x+2.5=20.5(279)18.8+5.9x=36.5(280)7x÷21=8(281)9x-2x-40=65(282)13x+2x-24=111(283)5x+22×0.5=26.5(284)9x+18x+4.7=118.1(285)4(5x-9)=84(286)(3x-35)÷2=8(287)x+4.3=10.7(288)26x-22×0.5=4.6(289)x-59=11(290)7x+3x-8=162(291)142-3x=49(292)110-2x=12(293)(4.2x-5.8)÷5=6.4(294)7.5-x=2.2(295)195÷x=3(296)4.3x-0.2×9=6.8(297)13x-10x+7=25(298)0.9x÷3=4.2(299)3(3x-37)=51(300)0.5x=5.5(301)x÷2=3.9(302)13.2÷x=1.2(303)4x+7x-7=224(304)1.2x÷56=0.3(305)10x÷5=14(306)11.5+43x=20.1(307)9x+4x+11=102(308)29+19x=162(309)10x-2x-2.8=11.6(310)0.6x÷21=0.2(311)3x-2×30=126(312)81x-67x-1.5=9.7(313)2x+16x-40=140(314)18x-7×12=42(315)x-4.3=3.9(316)3x-6×19=60(317)1.8x-1.2×2=3(318)(5x+4)÷35=1.4(319)16x+7x=253(320)2(2.4x+5.6)=44.8(321)3.6x+0.4×37=22(322)5.7x+6.1x-1.2=81.4(323)59x-28x-1.1=20.6(324)10x÷4=3(325)81x-11x+3.7=45.7(326)(6.7x-7.3)÷2=6.4(327)17x+5x=66(328)16x+45=189(329)2.1x+8.1x+1.1=62.3(330)(2.3x-8.2)÷4=1.4(331)8x+16×7=216(332)8x+44×0.2=21.6(333)1x-0.4×19=9.4(334)4.7x-0.9x=68.4(335)16.1+2x=19.7(336)9x=108(337)36-x=25(338)1.6x-1.7=12.7(339)21x+2×94=335(340)7(23x-28)=126(341)x+69=72(342)(0.6x+6.8)÷2=4(343)15x-18×4=18(344)9x+30×0.6=27.9(345)(19x-47)÷3=35(346)90x+5.4=23.4(347)4x÷12=11(348)28x=14(349)4.5x-3.4x=14.3(350)x-5.1=3.8(351)2(15x+2)=184(352)2(2.9x-7.6)=42.8(353)(x+7)÷18=1(354)9.4-1.4x=2.4(355)7.8x-1.9x-3.4=37.9(356)x÷5=24(357)16.8÷x=0.7(358)x+17=102(359)9.5x-8.3x+2.2=11.8(360)13x-6x+3.3=10.3(361)x-2.1=2.6(362)57-x=28(363)18.1-1.4x=12.5(364)4x=52(365)x-24=33(366)14.4÷x=0.6(367)x+0.7=10.6(368)7.6÷x=3.8(369)79+x=117(370)21x-21=105(371)13x-3x+43=103(372)27(0.7x-5.2)=29.7(373)2x-4×36=42(374)4x+3.2=4(375)39x=78(376)x÷5=0.3(377)92x+47x-0.9=26.9(378)6x-4x+25=59(379)53x+62x+0.4=172.9(380)5.2+14x=16.4(381)2.5x-2.1x+0.4=7.6(382)57x-38x-1=18(383)5x+15x=140(384)(10x+13)÷11=23(385)39x=156(386)4x÷48=3(387)2(14x+26)=136(388)9x÷4=36(389)x+75=88(390)4x+5x+2.9=66.8(391)3x+6.9x+3=32.7(392)48x+76x-1.7=109.9(393)8.8x+8.7x+3.3=90.8(394)3.6x+3.4=10.6(395)8x+6x=56(396)24x+43×3=225(397)(2.4x-5.8)÷13=1.4(398)0.4x+1.8×2=18(399)27x=162(400)x+1.4=7.1(401)140+8x=284(402)8.8x-2.8x-3.6=20.4(403)8x÷20=1(404)0.6x+2.7x=13.2(405)12.2+12x=21.8(406)9.4x-2.4x-2=61(407)27x+8×1.7=32.5(408)90÷x=15(409)40x-17x-3.5=49.4(410)15x-7x-2=14(411)22+x=48(412)x-3.3=5.2(413)5x=13.5(414)128-3x=35(415)x÷93=0.2(416)14(4.4x-7)=25.2(417)4.7x-3.5x-3.5=13.3(418)48x-19=77(419)3x+4x=224(420)3.5x-2x+4.9=30.4(421)4x+32×0.5=18(422)6x+49=115(423)14+x=42(424)6(2x-47)=186(425)24(0.8x-5.6)=38.4(426)x÷24=3(427)8.2x+5.8x=84(428)0.8x+2.7x=119(429)3.2+x=10.3(430)8x+17x=100(431)14x=14(432)(18x-11)÷17=11(433)x-3.1=5.8(434)3x+8×7=215(435)63÷x=7(436)12x+52=208(437)x-0.3=5.2(438)5.7+0.2x=14.5(439)x+0.7=7.7(440)56x÷16=0.7(441)x÷19=2(442)42+87x=216(443)109-7x=81(444)1.6x÷20=0.8(445)5.2-x=3.3(446)27x-5x+3.1=11.9(447)0.8x=2.4(448)4.3x+3.2=11.8(449)2x+3.2x+0.9=16.5(450)60÷x=12(451)2(0.5x+1.4)=29.8(452)0.3x=16.5(453)13x-2x=110(454)x÷3=2.5(455)18.1-54x=7.3(456)18x+3x-20=190(457)6.3x+8.8x-1=150(458)x-4.8=4.9(459)2.8x+6.5x=83.7(460)1.3x+0.2x+4.6=112.6(461)10+x=24(462)7x-2x=40(463)(6x-12)÷14=6(464)4x-2.9=17.1(465)1.1x+3.2=17.5(466)13x-10×0.7=7.3(467)x÷9=5(468)(14x-43)÷3=65(469)(9.1x+5.8)÷5=13.9(470)34x-20x+1.7=19.9(471)5.3x-1.3x-2.4=29.6(472)25x-3×1.7=9.9(473)4x÷8=16(474)2.8x+2x-1.1=75.7(475)18x-2x-26=118(476)1.9x-1.3=12(477)140÷x=4(478)(17x+26)÷18=9(479)11x-4x=112(480)2x-2.3=4.9(481)17x-4×11=126(482)13x-7x=54(483)x+3.3=11(484)8.7-x=3.8(485)1.6x-1.3×5=7.9(486)3.9x+0.9×20=25.8(487)2.2x+6.3x-0.9=109.6(488)120+5x=315(489)(15x+35)÷2=100(490)(4x+36)÷2=70(491)x+23=81(492)x÷4=3.2(493)94-x=66(494)19.5-3.6x=12.3(495)28x-2x+1.6=22.4(496)0.5x=14(497)21x÷24=7(498)9x+19x-32=108(499)5x-1.7=5.3(500)18.9-31x=3.4(501)2(0.4x-4.7)=19.4(502)30x-17×0.2=8.6(503)85+22x=173(504)22x=15.4(505)(x-11)÷2=5(506)15x÷50=0.3(507)5.2-0.4x=4.4(508)15x=105(509)10x-2x+43=195(510)22x+21x-2.5=105(511)(4x-28)÷34=2(512)28x+29x+0.9=18(513)(17x+36)÷7=10(514)41-x=15(515)27x÷81=0.2(516)19.9+2.3x=33.7(517)3(5x+30)=180(518)4.2x÷12=0.7(519)6+x=11.7(520)15.6-4x=10(521)(5x-2)÷10=4.3(522)x÷10=7(523)4.6+2.6x=22.8(524)4x+3.2=18(525)3.7x-2x=37.4(526)3x-4.2=4.2(527)1.4x+5.3=12.3(528)2(x+48)=114(529)3.9+12x=15.9(530)2.6x+1.4x-4.6=19.4(531)0.6x÷16=1.2(532)8x=24(533)15x-7x-26=22(534)5.8x-4.1x-4.7=20.8(535)2(4x-42)=148(536)2x+4.2=8(537)30x-3×3=6(538)18.8-6x=14(539)7x+4.1=12.5(540)5x-19=91参考答案(1)x=2(2)x=0.4(3)x=39(4)x=5(5)x=3(6)x=0.6(7)x=13(8)x=1.4(9)x=47(10)x=2.5(11)x=0.2(12)x=6(13)x=39(14)x=6.1(15)x=12(16)x=0.2(17)x=5(18)x=170(19)x=2(20)x=1.3(21)x=4(22)x=9(23)x=11(24)x=5(25)x=6.8(26)x=0.8(27)x=79(28)x=36(29)x=66(30)x=8(31)x=7.6(32)x=9(33)x=2.3(34)x=39(35)x=24(36)x=6(37)x=1.1(38)x=15(39)x=4(40)x=4(41)x=2(42)x=2.9(43)x=60(44)x=10(45)x=6.1(46)x=89(47)x=0.5(48)x=7(49)x=6.4(50)x=1.8(51)x=15(52)x=2(53)x=9(54)x=10(55)x=34(56)x=1.2(57)x=4(58)x=0.6(59)x=0.6(60)x=3.6(61)x=1.6(62)x=0.2(63)x=20(64)x=0.8(65)x=32(66)x=11(67)x=0.3(68)x=62(69)x=0.4(70)x=38(71)x=5(72)x=5(73)x=26(74)x=2(75)x=7(76)x=5(77)x=92(78)x=2(79)x=9(80)x=9.3(81)x=4.5(82)x=3(83)x=3(84)x=23(85)x=0.5(86)x=2(87)x=11(88)x=12(89)x=57(90)x=4(91)x=17(92)x=85(93)x=64(94)x=0.4(95)x=3(96)x=41(97)x=4.9(98)x=4(99)x=0.3(100)x=1.8(101)x=3.1(102)x=39(103)x=14(104)x=7(105)x=7(106)x=0.5(107)x=18(108)x=4(109)x=14(110)x=29(111)x=0.3(112)x=1.2(113)x=82(114)x=1(115)x=3(116)x=7.3(117)x=0.7(118)x=2.7(119)x=22(120)x=0.5(121)x=5(122)x=10(123)x=3.8(124)x=2(125)x=5(126)x=17(127)x=6(128)x=39(129)x=9(130)x=0.9(131)x=7(132)x=0.2(133)x=58(134)x=5(135)x=8(136)x=3(137)x=2(138)x=14(139)x=36(140)x=11(141)x=0.8(142)x=2.4(143)x=15(144)x=74(145)x=39(146)x=5(147)x=8(148)x=0.2(149)x=19(150)x=63(151)x=21(152)x=50(153)x=0.5(154)x=39(155)x=99(156)x=23(157)x=0.3(158)x=2(159)x=82(160)x=10(161)x=0.6(162)x=7(163)x=85(164)x=6(165)x=23(166)x=27(167)x=0.3(168)x=3.4(169)x=150(170)x=49(171)x=9.9(172)x=76(173)x=45(174)x=13(175)x=19(176)x=55(177)x=12(178)x=9.6(179)x=1(180)x=2.8(181)x=2(182)x=20(183)x=11(184)x=8(185)x=11(186)x=15(187)x=15(188)x=12(189)x=5(190)x=5(191)x=7.9(192)x=35(193)x=8(194)x=0.2(195)x=30(196)x=31(197)x=0.8(198)x=41(199)x=4(200)x=19(201)x=13(202)x=13(203)x=5.1(204)x=52(205)x=8.2(206)x=3(207)x=12(208)x=45(209)x=2(210)x=66(211)x=5(212)x=0.5(213)x=18(214)x=17(215)x=29(216)x=11(217)x=0.5(218)x=7(219)x=2.8(220)x=14(221)x=15(222)x=2(223)x=2.9(224)x=3(225)x=61(226)x=0.3(227)x=3(228)x=32(229)x=12(230)x=4(231)x=10(232)x=14.4(233)x=6(234)x=0.2(235)x=10(236)x=7(237)x=2(238)x=12(239)x=30(240)x=45(241)x=4(242)x=8(243)x=22(244)x=0.3(245)x=15(246)x=4(247)x=2(248)x=2(249)x=25(250)x=9(251)x=11(252)x=25(253)x=28(254)x=3(255)x=0.4(256)x=13(257)x=10(258)x=19(259)x=18(260)x=45(261)x=1.6(262)x=14(263)x=8(264)x=10(265)x=6(266)x=5(267)x=57(268)x=14(269)x=16(270)x=16(271)x=6(272)x=0.5(273)x=91(274)x=14(275)x=92(276)x=6(277)x=6(278)x=20(279)x=3(280)x=24(281)x=15(282)x=9(283)x=3.1(284)x=4.2(285)x=6(286)x=17(287)x=6.4(288)x=0.6(289)x=70(290)x=17(291)x=31(292)x=49(293)x=9(294)x=5.3(295)x=65(296)x=2(297)x=6(298)x=14(299)x=18(300)x=11(301)x=7.8(302)x=11(303)x=21(304)x=14(305)x=7(306)x=0.2(307)x=7(308)x=7(309)x=1.8(310)x=7(311)x=62(312)x=0.8(313)x=10(314)x=7(315)x=8.2(316)x=58(317)x=3(318)x=9(319)x=11(320)x=7(321)x=2(322)x=7(323)x=0.7(324)x=1.2(325)x=0.6(326)x=3(327)x=3(328)x=9(329)x=6(330)x=6(331)x=13(332)x=1.6(333)x=17(334)x=18(335)x=1.8(336)x=12(337)x=11(338)x=9(339)x=7(340)x=2(341)x=3(342)x=2(343)x=6(344)x=1.1(345)x=8(346)x=0.2(347)x=33(348)x=0.5(349)x=13(350)x=8.9(351)x=6(352)x=10(353)x=11(354)x=5(355)x=7(356)x=120(357)x=24(358)x=85(359)x=8(360)x=1(361)x=4.7(362)x=29(363)x=4(364)x=13(365)x=57(366)x=24(367)x=9.9(368)x=2(369)x=38(370)x=6(371)x=6(372)x=9(373)x=93(374)x=0.2(375)x=2(376)x=1.5(377)x=0.2(378)x=17(379)x=1.5(380)x=0.8(381)x=18(382)x=1(383)x=7(384)x=24(385)x=4(386)x=36(387)x=3(388)x=16(389)x=13(390)x=7.1(391)x=3(392)x=0.9(393)x=5(39