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)14x-10x+28=40(2)7x+2.1=6.3(3)7x+6×8=223(4)(12x+36)÷3=40(5)5(2x-2)=200(6)0.4x÷17=0.8(7)9.9+0.5x=12.9(8)x+3.7=6.5(9)11.1-0.5x=3.6(10)x-4.8=3.6(11)2.8x+3.8×3=25.4(12)x-6=34(13)76x+27=179(14)97-2x=31(15)8x-2×33=70(16)2x-2.7=7.3(17)4(0.2x+7.5)=35.6(18)41x+18=141(19)2.9x+9.4x+4.2=127.2(20)72x+48=192(21)6x+37=175(22)6x÷16=3(23)4x-47=117(24)124-3x=106(25)x-7=74(26)5x+11x-1.6=25.6(27)3.3x-0.8x+3.3=75.8(28)17x-3x+33=187(29)85x+92x+3.2=180.2(30)5(3x+6)=135(31)36x+34=178(32)2x+14x=144(33)3(2x-45)=75(34)49x÷28=7(35)1.8x+0.7×26=30.8(36)0.2+x=4.2(37)16x-6x=100(38)7+x=10.7(39)10+x=63(40)21(0.5x-7.9)=33.6(41)4.4+20x=22.4(42)35-x=21(43)6x=18(44)38x=11.4(45)(11x+28)÷6=23(46)15x-4x+36=113(47)6.8+x=9.2(48)12.6÷x=4.2(49)30x-28x+3.3=8.7(50)10x+3.1=13.1(51)84÷x=42(52)3(0.2x+7.1)=41.1(53)4.2x+5.7x=79.2(54)0.8x-5.8=6.2(55)27x+26x-4.6=21.9(56)(6.9x-6)÷3=14.1(57)16x-1.3=9.9(58)3.6x-1.4x=17.6(59)11.1÷x=0.3(60)6.2+44x=15(61)16x-12x-7=25(62)(1.6x+9.7)÷7=5.5(63)7x-3x+38=130(64)5x+23×0.5=28.5(65)2.1-x=1.1(66)0.6x-1.1×8=8(67)3x+4x=175(68)6.8-18x=3.2(69)4.4-1.1x=1.1(70)(4x-31)÷3=27(71)1.5x+8.2x-2.2=56(72)2x+14x=176(73)x÷8=2.1(74)2(0.2x+0.9)=11(75)1.6x÷8=0.4(76)3x+15x+37=181(77)3x=171(78)4x+8x-15=213(79)138-31x=45(80)8.8x+7.8x=99.6(81)19.8-3.1x=7.4(82)12x+6x-2=142(83)2(2x+20)=68(84)x-0.6=9.2(85)16x-13x-17=10(86)8.4+x=17.1(87)x÷43=0.4(88)7.8-x=7.1(89)x+9.8=12.2(90)6x-2x=88(91)40x=200(92)152+5x=307(93)77+29x=222(94)5x-2x=48(95)6(3x+11)=156(96)x÷25=0.7(97)6x+8×0.5=11.2(98)10x+7x-22=165(99)(3x+9)÷20=2.7(100)4.3x-1.5x-2.4=56.4(101)0.8x÷32=0.4(102)1.8x+0.5x+3.3=102.2(103)5.6x-5.4x+2.4=5.4(104)10x+20=130(105)49x-34x+4.4=31.4(106)22x-5x+3.7=53(107)x+0.7=1(108)36-x=27(109)(11x+16)÷35=8(110)18x-5x+3.5=20.4(111)9.8x+8x+2.9=38.5(112)2(2x+34)=104(113)3+36x=10.2(114)15x÷5=1.8(115)5-3x=2(116)x÷20=0.4(117)4x+17x+7=133(118)27÷x=3(119)4x=5.2(120)2x-35×3=21(121)4+x=51(122)2.2x-0.6×7=13.4(123)7x+5.7=12(124)14x+16x-3.3=110.7(125)(10x-34)÷2=73(126)12+1.5x=16.5(127)29(0.3x-9.7)=49.3(128)3.2x-1.9×3=7.1(129)10x=11(130)11x-14=19(131)8.2+2.1x=14.5(132)(2.7x+8.5)÷26=2.3(133)4x+9.2x-4.7=34.9(134)9x-26×0.3=6.6(135)44+x=128(136)18x-7x-2.2=47.3(137)10.2+0.4x=29.4(138)85x-78x-2.7=4.3(139)13x-13×0.3=1.3(140)16-0.4x=2.8(141)(2x+25)÷37=1(142)2(x+24)=100(143)10x+17x-21=168(144)6.1+23x=24.5(145)12.9-2.5x=7.9(146)5x-9×1.2=1.2(147)60x+69x-2.6=36.1(148)6x-3x=54(149)9x+8x-29=90(150)7x-3x-16=60(151)5.3x-2.8=7.8(152)32÷x=4(153)7x-2.9=13.2(154)1.9x=13.3(155)18.5+40x=34.5(156)5x+14x-3=36.9(157)2.4x=9.6(158)(7x+21)÷4=49(159)8÷x=4(160)50-x=34(161)4x-37×0.3=4.9(162)7x-3x-42=62(163)6.3+x=6.9(164)3.8x+9.7x-3.9=50.1(165)16x+6×5=78(166)5.2x÷6=2.6(167)13.8-2x=7(168)77x+96x-1.9=50(169)3x-1.4=4.3(170)5x÷15=7(171)x÷23=3(172)2x+4.2=13.6(173)2(6x+32)=160(174)8.2x-4.2x-3.6=40.4(175)45x=18(176)(4.1x-5.7)÷26=1.2(177)5x=155(178)2(1.4x+1.3)=13.8(179)65-x=46(180)5x+5.9=24.9(181)0.8x+8.2x=108(182)24x+3.4=17.8(183)41x-6x-4=27.5(184)10x+3×53=359(185)13.8÷x=4.6(186)6.6+2x=25.6(187)6(2.3x-6.6)=29.4(188)5x-5.2=10.3(189)182-31x=89(190)8.5x-1.7x-3.9=50.5(191)38x-24x+1.1=12.3(192)4(x+5)=108(193)0.9x-2=5.2(194)x-83=14(195)82-x=76(196)x-4.7=2(197)(13x+13)÷17=13(198)11x÷88=0.2(199)5.3x+7.6x+3.9=145.8(200)18x÷90=0.2(201)6x-5.8=13.4(202)2x-4.3=8.7(203)(2.1x-6)÷33=0.2(204)9.6÷x=1.6(205)9-x=4.7(206)8.9x-2.7=15.1(207)6x+13x+3=79(208)0.7x-4=7.2(209)13+x=104(210)6.8x+0.5x-3.8=61.9(211)107-6x=29(212)x+87=165(213)0.2x-4.4=3.6(214)x-39=58(215)15.5-4x=8.3(216)1.4x-0.4×30=2(217)x+41=117(218)10x-22×3=104(219)7x=7.7(220)17.9-0.9x=2.6(221)0.9x+0.3x=106.8(222)x+3.2=13(223)17x+14x=248(224)4x-8×1.2=6.4(225)0.4x=19.6(226)23x=138(227)2x-6×31=10(228)141-18x=15(229)x÷9=18(230)13.2÷x=1.1(231)2(6.6x-2.5)=47.8(232)5x+46x+0.4=71.8(233)18x-8x-3.1=30.9(234)175-2x=83(235)0.4x+5.7=18.5(236)97x-47x+3.9=28.9(237)161÷x=7(238)8.1x+4.6x=114.3(239)16x+5.7=16.9(240)1.4x-2.7×2=10(241)(17x-8)÷4=49(242)x-8=77(243)14.5-4x=9.3(244)96x-34x-3.5=46.1(245)13x-4x=27(246)(5.8x-0.4)÷28=0.4(247)22-x=12(248)92÷x=2(249)x÷3=47(250)0.5x=11(251)8x+99x+3.7=100(252)8x+24×8=360(253)(17x-41)÷10=1(254)3.9x-2.1x=16.2(255)4x+48=84(256)12x+10×12=204(257)17.2-0.6x=7(258)x+47=105(259)5.7x+0.5x=12.4(260)8.7x-1.4x+3.5=40(261)2.6x-1.6x+0.9=37.9(262)3(5.3x-2.2)=41.1(263)5(0.2x+7.9)=41.5(264)3x+5×12=258(265)4.7x+3x-1.3=152.7(266)x-2.1=3(267)50+x=58(268)7x+5.5=25.1(269)6.6x+7.3x=125.1(270)9.6x÷48=0.4(271)66x+80x+0.7=117.5(272)104+72x=248(273)3.8x-0.4x-2.4=18(274)6.4x+4.8=17.6(275)4.4x-3.1x+2.9=30.2(276)3.8x-2.4x+4.3=15.5(277)2x=56(278)6.8x-5.5x=15.6(279)x-1.4=2.9(280)2x+4x+47=149(281)95x+34=224(282)5x+11×1.4=31.9(283)x-0.6=6.9(284)x-52=13(285)(4.6x-6.6)÷2=31.2(286)x+3.3=9.5(287)44+2x=132(288)14x=42(289)26+2x=150(290)5x=10(291)12x-4×20=40(292)1.2x+3.9=18.3(293)5x-2x-28=38(294)x÷2=2.1(295)4(2x-15)=116(296)7.4x-1.3x=24.4(297)49+19x=87(298)9.8-x=8(299)0.7x+0.4×42=32.2(300)x+29=44(301)6x÷3=44(302)95x-53=137(303)4(x-7)=112(304)33x-41=124(305)0.3x+3.6=23.4(306)2x+3.6=5(307)6x-4.9x=6.6(308)0.2x+0.9×22=28(309)89x-69x-1=9(310)38x+97x+2.3=56.3(311)9x+23x+2.7=111.5(312)13x+4×48=322(313)x÷2=12(314)4.8x+0.6×17=29.4(315)2x-14=104(316)3(x+2.4)=22.2(317)4(1.5x-8.4)=14.4(318)5+0.2x=17.8(319)(2x+2)÷15=2(320)7.2÷x=2.4(321)2.7x+3.6=9(322)71x-39x+0.6=10.2(323)2x-19=157(324)6x-2x-44=84(325)2.6x-2.1×4=2(326)2x+11x-39=65(327)8.6x-1.1x=60(328)11x-3x-39=25(329)31x-2.4=3.8(330)11.4÷x=3.8(331)84x+95x+1.5=144.7(332)4x-2×2.6=7.6(333)(8.5x+2.5)÷8=3.5(334)7x+13x=240(335)0.5x+0.6×9=16.4(336)3x+2×3=14.7(337)0.3x+0.6×10=8.7(338)2.1x-1.1×16=1.3(339)x+4.2=6.4(340)87-x=76(341)16-0.9x=9.7(342)14.8-4x=2.4(343)58x-19x-3.7=19.7(344)91x+89x+3.2=165.2(345)x-11=25(346)2x=46(347)1.5x+0.9×17=30.3(348)x+1.7=9.8(349)13.3-16x=3.7(350)2x÷62=3(351)2(x+29)=98(352)12.6+6x=31.2(353)(5.2x-4.6)÷27=0.6(354)x÷17=0.5(355)(2.4x+6)÷4=7.5(356)1.8x+1x=61.6(357)x-7.4=2.1(358)19x-2x-1.2=22.6(359)(5x-6)÷6=4(360)183+42x=309(361)x-3.9=3.3(362)(6x+20)÷44=1(363)(8x+4)÷2=14(364)3(3.1x+5.8)=45.3(365)17x-10x-19=30(366)12x+19x-4=275(367)6.3x-3.8x-1.8=23.2(368)4x-11×0.7=3.1(369)1x÷4=4.5(370)57x-50=121(371)(11x-8)÷6=39(372)x÷17=0.7(373)5x+3x+8=272(374)(5.7x-6.6)÷12=6.1(375)5.1x+2.3x-4.4=77(376)2x÷4=1.6(377)0.3x+1.8×11=31.2(378)3x=6(379)42-x=16(380)x÷20=8(381)65+x=70(382)5(6x-22)=160(383)x÷25=0.2(384)12x-3×9=21(385)(15x+4)÷32=2(386)3.9x+1x=19.6(387)x+1.9=4.8(388)2x-9×2=32(389)27x-10×0.3=5.1(390)(2.3x-6.5)÷3=7.8(391)19x-14x+36=76(392)19x+16x-2=313(393)8x-3.4=14.2(394)6x-1.8x-2.9=34.9(395)4(0.4x+2.6)=47.2(396)39x-23x+3.7=16.5(397)6.2x+4.4x-0.4=137.4(398)0.8x÷12=0.4(399)(11x-47)÷10=25(400)1.1x÷9=2.2(401)5.1-9x=3.3(402)0.5x=1(403)x÷12=8(404)3.8+8.9x=21.6(405)7(2x-22)=182(406)18x-5x-14=12(407)16x÷12=0.4(408)5x+16x+27=216(409)x+19=24(410)0.6x=15(411)11x-8x=42(412)4.6x+3.8=22.2(413)3x÷17=9(414)12x+16x=56(415)2x÷8=3(416)90x+78x-4.7=62.5(417)5x=11.5(418)1.9x-2.9=2.8(419)(1.1x+6.3)÷34=0.8(420)5x+0.2x+1.7=95.3(421)(4.8x+1)÷14=3.5(422)(0.3x+8.4)÷14=0.9(423)9.6x-7.2x-0.7=20.9(424)x÷10=7(425)4.8x=14.4(426)12x-5x=77(427)8.4x-1.6x=74.8(428)19x+8x=81(429)x-13=14(430)9+x=108(431)3.5x-3.8=3.2(432)22x+7×18=170(433)x-13=86(434)1x-0.2x-1.6=51.2(435)x+39=79(436)2.5x-1.2x+3.7=37.5(437)x÷15=1.3(438)22x+14×1.1=19.8(439)57x=114(440)4.8x-3.8x=19(441)3+x=12.6(442)15x-2×4.5=1.5(443)7(11x-33)=154(444)2x+3x+5=220(445)45-6x=21(446)27x-15x+1.6=20.8(447)11.9+0.4x=15.5(448)10x-2x=96(449)96x÷12=1.6(450)9x-21=168(451)194-2x=82(452)1.5x÷6=1(453)(12x-16)÷16=8(454)(7.6x-6)÷26=2.4(455)8x-4×17=124(456)9x+8×1.4=13.9(457)18x÷60=0.3(458)6.8-4x=6(459)x÷5=38(460)5x-13×5=85(461)2(2x+40)=96(462)145÷x=29(463)97x+10x-3=61.2(464)x+15=103(465)8.5+x=11.7(466)5.3x-2.5x+1=20.6(467)17.6+5x=37.1(468)4.1x-1.7x=43.2(469)0.4x+2.2=15.4(470)24x÷28=0.6(471)0.9x+1x+0.5=53.7(472)85+x=154(473)5.2x+9.2x+1.8=145.8(474)2(3.5x+1.5)=17(475)x-3.9=1.5(476)4x+21×0.5=16.1(477)9x=3.6(478)83-x=65(479)37x+17x-0.9=144.9(480)16x-14=34(481)17.4÷x=0.6(482)7x+19x=260(483)4x-1.6x+0.9=36.9(484)11+47x=152(485)79+x=170(486)0.5x+3.1=22.6(487)x+18=96(488)2(8x-41)=30(489)3x+4×37=193(490)x+89=188(491)17x-8x+39=102(492)2x+13x+48=183(493)7.4+x=11.3(494)(9x-14)÷37=4(495)16x-6x+31=141(496)6x=1.8(497)14x+19=187(498)5.8-x=5.5(499)0.4x+2=12.8(500)9x+6x+19=289(501)18x÷3=12(502)8.4-x=6.5(503)8.9x-4.2x-3=29.9(504)1x-1.1×3=1.7(505)8.3-x=1(506)1.5x+9.6x+1.9=68.5(507)34x=170(508)162÷x=3(509)15.2+0.2x=33.4(510)2x÷3=36(511)2(2.9x-0.4)=28.2(512)3x+5x-7=129(513)18x-3x=60(514)10x-5x+10=105(515)4.9+x=13.1(516)12.3-0.4x=3.5(517)x+7.5=15.5(518)11.5+0.2x=27.7(519)4.7x+4.3x-4.6=67.4(520)7(0.4x-6.3)=31.5(521)67x+31x+4.8=34.2(522)4.6x+8.2x-3.2=124.8(523)3.1-x=2.9(524)7+44x=15.8(525)118÷x=2(526)0.3x-0.3×13=1.2(527)189+6x=351(528)68÷x=17(529)5(9x-8.7)=46.5(530)9x-4x-2.7=29.3(531)1x-2.5=7.5(532)1.6x+3.8x+3.6=79.2(533)7(7x-42)=196(534)8x+14x=88(535)6.1-x=3.3(536)3x÷12=0.2(537)2x+12×1.6=27.8(538)2x+17×1.1=20.3(539)x÷4=45(540)4x-2x+38=80参考答案(1)x=3(2)x=0.6(3)x=25(4)x=7(5)x=21(6)x=34(7)x=6(8)x=2.8(9)x=15(10)x=8.4(11)x=5(12)x=40(13)x=2(14)x=33(15)x=17(16)x=5(17)x=7(18)x=3(19)x=10(20)x=2(21)x=23(22)x=8(23)x=41(24)x=6(25)x=81(26)x=1.7(27)x=29(28)x=11(29)x=1(30)x=7(31)x=4(32)x=9(33)x=35(34)x=4(35)x=7(36)x=4(37)x=10(38)x=3.7(39)x=53(40)x=19(41)x=0.9(42)x=14(43)x=3(44)x=0.3(45)x=10(46)x=7(47)x=2.4(48)x=3(49)x=2.7(50)x=1(51)x=2(52)x=33(53)x=8(54)x=15(55)x=0.5(56)x=7(57)x=0.7(58)x=8(59)x=37(60)x=0.2(61)x=8(62)x=18(63)x=23(64)x=3.4(65)x=1(66)x=28(67)x=25(68)x=0.2(69)x=3(70)x=28(71)x=6(72)x=11(73)x=16.8(74)x=23(75)x=2(76)x=8(77)x=57(78)x=19(79)x=3(80)x=6(81)x=4(82)x=8(83)x=7(84)x=9.8(85)x=9(86)x=8.7(87)x=17.2(88)x=0.7(89)x=2.4(90)x=22(91)x=5(92)x=31(93)x=5(94)x=16(95)x=5(96)x=17.5(97)x=1.2(98)x=11(99)x=15(100)x=21(101)x=16(102)x=43(103)x=15(104)x=11(105)x=1.8(106)x=2.9(107)x=0.3(108)x=9(109)x=24(110)x=1.3(111)x=2(112)x=9(113)x=0.2(114)x=0.6(115)x=1(116)x=8(117)x=6(118)x=9(119)x=1.3(120)x=63(121)x=47(122)x=8(123)x=0.9(124)x=3.8(125)x=18(126)x=3(127)x=38(128)x=4(129)x=1.1(130)x=3(131)x=3(132)x=19(133)x=3(134)x=1.6(135)x=84(136)x=4.5(137)x=48(138)x=1(139)x=0.4(140)x=33(141)x=6(142)x=26(143)x=7(144)x=0.8(145)x=2(146)x=2.4(147)x=0.3(148)x=18(149)x=7(150)x=19(151)x=2(152)x=8(153)x=2.3(154)x=7(155)x=0.4(156)x=2.1(157)x=4(158)x=25(159)x=2(160)x=16(161)x=4(162)x=26(163)x=0.6(164)x=4(165)x=3(166)x=3(167)x=3.4(168)x=0.3(169)x=1.9(170)x=21(171)x=69(172)x=4.7(173)x=8(174)x=11(175)x=0.4(176)x=9(177)x=31(178)x=4(179)x=19(180)x=3.8(181)x=12(182)x=0.6(183)x=0.9(184)x=20(185)x=3(186)x=9.5(187)x=5(188)x=3.1(189)x=3(190)x=8(191)x=0.8(192)x=22(193)x=8(194)x=97(195)x=6(196)x=6.7(197)x=16(198)x=1.6(199)x=11(200)x=1(201)x=3.2(202)x=6.5(203)x=6(204)x=6(205)x=4.3(206)x=2(207)x=4(208)x=16(209)x=91(210)x=9(211)x=13(212)x=78(213)x=40(214)x=97(215)x=1.8(216)x=10(217)x=76(218)x=17(219)x=1.1(220)x=17(221)x=89(222)x=9.8(223)x=8(224)x=4(225)x=49(226)x=6(227)x=98(228)x=7(229)x=162(230)x=12(231)x=4(232)x=1.4(233)x=3.4(234)x=46(235)x=32(236)x=0.5(237)x=23(238)x=9(239)x=0.7(240)x=11(241)x=12(242)x=85(243)x=1.3(244)x=0.8(245)x=3(246)x=2(247)x=10(248)x=46(249)x=141(250)x=22(251)x=0.9(252)x=21(253)x=3(254)x=9(255)x=9(256)x=7(257)x=17(258)x=58(259)x=2(260)x=5(261)x=37(262)x=3(263)x=2(264)x=66(265)x=20(266)x=5.1(267)x=8(268)x=2.8(269)x=9(270)x=2(271)x=0.8(272)x=2(273)x=6(274)x=2(275)x=21(276)x=8(277)x=28(278)x=12(279)x=4.3(280)x=17(281)x=2(282)x=3.3(283)x=7.5(284)x=65(285)x=15(286)x=6.2(287)x=44(288)x=3(289)x=62(290)x=2(291)x=10(292)x=12(293)x=22(294)x=4.2(295)x=22(296)x=4(297)x=2(298)x=1.8(299)x=22(300)x=15(301)x=22(302)x=2(303)x=35(304)x=5(305)x=66(306)x=0.7(307)x=6(308)x=41(309)x=0.5(310)x=0.4(311)x=3.4(312)x=10(313)x=24(314)x=4(315)x=59(316)x=5(317)x=8(318)x=64(319)x=14(320)x=3(321)x=2(322)x=0.3(323)x=88(324)x=32(325)x=4(326)x=8(327)x=8(328)x=8(329)x=0.2(330)x=3(331)x=0.8(332)x=3.2(333)x=3(334)x=12(335)x=22(336)x=2.9(337)x=9(338)x=9(339)x=2.2(340)x=11(341)x=7(342)x=3.1(343)x=0.6(344)x=0.9(345)x=36(346)x=23(347)x=10(348)x=8.1(349)x=0.6(350)x=93(351)x=20(352)x=3.1(353)x=4(354)x=8.5(355)x=10(356)x=22(357)x=9.5(358)x=1.4(359)x=6(360)x=3(361)x=7.2(362)x=4(363)x=3(364)x=3(365)x=7(366)x=9(367)x=10(368)x=2.7(369)x=18(370)x=3(371)x=22(372)x=11.9(373)x=33(374)x=14(375)x=11(376)x=3.2(377)x=38(378)x=2(379)x=26(380)x=160(381)x=5(382)x=9(383)x=5(384)x=4(385)x=4(386)x=4(387)x=2.9(388)x=25(389)x=0.3(390)x=13(391)x=8(392)x=9(393)x=2.2(394)x=9(3