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)6.5+x=8.4(2)(1.6x-5.1)÷25=0.5(3)13x-4.7=7(4)4(1.5x+1.6)=42.4(5)2(4x-6)=132(6)17.4-34x=10.6(7)29x=17.4(8)15x+3x-40=194(9)7x+4.6=18.6(10)1.1x-2=11.2(11)6x+1.9x+0.5=87.4(12)7x-62×2=72(13)93+4x=177(14)x+3.7=11.7(15)3.3x-0.3×31=3.9(16)40x-28=52(17)8.2-x=4.2(18)4.3+x=12.1(19)2.9x-2.2x=14.7(20)3.2x-2.5x=11.2(21)7+x=106(22)9.6÷x=0.6(23)8x÷24=7(24)0.2x-4.2=10.2(25)5(0.4x-0.5)=5.5(26)5.7x+6.6x=123(27)10x+3x-7=253(28)3.5x+1.8×8=28.4(29)18x-3x+0.2=36.2(30)2x+42=156(31)13x+2.6=6.5(32)5(5.1x-7)=41.5(33)85-x=33(34)4.1+x=5.9(35)1.3x-0.6×2=17(36)11.2÷x=0.8(37)46x+63x+4=134.8(38)10.2-27x=2.1(39)3.8x+7.4x+4.4=150(40)9x-9×10=54(41)14.6+18x=23.6(42)6x+2×1.1=21.4(43)4x÷12=0.3(44)0.5x-0.7×8=11.4(45)7.3+x=15.1(46)(12x+26)÷11=10(47)42x-10=116(48)1.2x-1x-0.3=3.1(49)7x=9.1(50)4(0.3x+4.6)=28(51)x-77=21(52)9x+70x+0.4=55.7(53)153+63x=279(54)x÷23=8(55)9.2÷x=0.4(56)x-1.9=6.2(57)0.8x+1×4=23.2(58)3(0.3x+1.3)=9.3(59)43x+1=9.6(60)45x-34x+3.6=23.4(61)2.9+x=4.7(62)6x+27=93(63)4+x=67(64)6x+4x+14=344(65)18x-9x=27(66)120÷x=15(67)10x-6x+4=16.4(68)x-63=36(69)1.3x+0.9x=24.2(70)24+19x=62(71)1.1x+1.5x-2.1=31.7(72)7.1+2.7x=17.9(73)0.7x÷28=0.3(74)17x+18x=70(75)3x-2.9=13.6(76)75-19x=37(77)36x+33x+4.3=25(78)29x-19x+0.7=15.7(79)(5x-22)÷6=18(80)4.1x+4.6x+2.7=176.7(81)6.4x+2.9x=37.2(82)0.4x-0.3×43=5.9(83)x÷17=0.6(84)17x-11x+48=96(85)2(x+12)=30(86)19x+6x+40=240(87)54x+6x-2.8=75.2(88)28x-59=137(89)4.5x-3.6x=14.4(90)18.9-0.2x=2.5(91)14.2-0.3x=8.2(92)17x-14x=24(93)9.3x-1.2x=32.4(94)14x+21×8=280(95)5x+8x=52(96)30x+15×0.7=19.5(97)119+7x=252(98)x+95=173(99)0.2x+2.4×7=21.4(100)8.7-1.5x=2.7(101)15.6+0.3x=27(102)9.8-x=9.5(103)1x-0.5×3=11.5(104)13x-9x-40=16(105)10(0.4x-3.3)=11(106)6.6x-4.9x-4.5=7.4(107)99+x=160(108)48+89x=226(109)32x÷48=0.2(110)59x=17.7(111)9x-24=174(112)3x=54(113)6x-29×0.4=4(114)11x+7x-7=137(115)2x÷3=4.8(116)7.9+x=13.3(117)10x+6x+4.2=119.4(118)(1.3x-0.9)÷15=0.2(119)1x+0.3x-4=19.4(120)8x+9x+44=163(121)13(6x+2)=182(122)2x+3x+46=296(123)x+91=103(124)0.2x+4.9x-3.3=68.1(125)13x-7x=24(126)x+26=50(127)195-13x=52(128)13.1+9x=15.8(129)0.3x+2.6=20.9(130)1x+6.3x-2.2=78.1(131)2.1-x=1.3(132)86x-39x-3.1=43.9(133)6x=14.4(134)2.5+0.2x=20.1(135)3.1x+5.5x+3.8=64(136)4.3x-1.8x+2.3=34.8(137)10x+5.4=14.4(138)x+0.6=9.7(139)2.6x-1.4x+4=49.6(140)x-1.9=6.7(141)174÷x=2(142)17x-12x=40(143)(9.3x+0.3)÷7=12(144)98x-36x+4.5=41.7(145)6x+11x+30=183(146)91x-56x+1.8=26.3(147)18x-5x-22=121(148)138÷x=3(149)6(3x-46)=120(150)29x+7×2.3=24.8(151)6.1x-2.7x+2.6=46.8(152)85-x=27(153)91-x=65(154)7(3.2x-5.9)=48.3(155)23x+5×29=283(156)3.5x÷7=1(157)x÷73=2(158)x÷8=0.9(159)2x=3.4(160)8.6x+7.2x-1.8=61.4(161)x-30=33(162)1.3x+8x=18.6(163)15x-6x-35=10(164)8x÷3=4(165)2x+3x=315(166)9x+13x+35=255(167)x÷15=0.7(168)12.3-0.7x=10.2(169)17x-11x=36(170)16.7+1.1x=34.3(171)28x-16x-2.5=39.5(172)6(6x-18)=108(173)81-x=34(174)16÷x=4(175)12x÷2=18(176)65+46x=157(177)3x-1.4=11.8(178)3x=120(179)129+4x=237(180)3x+4x=336(181)(5.3x-6.5)÷5=4(182)x÷12=14(183)1.3x+5.6=19.9(184)138+5x=243(185)x÷17=9(186)(7x+45)÷2=47(187)3.2+40x=23.2(188)1.2x-1.1=14.5(189)20x-53×2=94(190)10x-4.8=13.2(191)x÷8=1.1(192)17x+84x+3.5=43.9(193)4.9x+1=20.6(194)14.1-0.6x=2.1(195)3(9x+25)=183(196)x+2.2=11.3(197)10x+4.9=6.9(198)10.3+2x=11.1(199)11x-4x+29=113(200)(5.2x-3.8)÷2=42.3(201)0.5x+0.4×2=13.8(202)51x+83x-3.5=90.3(203)16.3-1.3x=12.4(204)1.2x+2.2x+2.2=66.8(205)192-56x=80(206)4.2x-2×4=4.6(207)5x+4×42=243(208)6.5x+6.3x-1.9=190.1(209)18.7+0.4x=26.7(210)(17x+30)÷14=7(211)19.5+0.4x=22.3(212)9x+18×0.4=9.9(213)1.3x-0.7x-2.6=22.6(214)x-0.4=7.5(215)x-0.3=5.4(216)17.3-14x=3.3(217)x-1.4=4.9(218)0.3x÷96=0.2(219)8.2x-7.7x=3(220)24x÷16=3(221)x-0.6=4.3(222)x-43=41(223)3.5x-1.3x+2.2=50.6(224)17.2+2x=36.2(225)x÷2=6(226)4.6x-3.4x-0.6=9(227)5x-2.6=11.9(228)15+x=90(229)9.4x+5.8=24.6(230)63x+5x-1=53.4(231)x÷41=4(232)51x÷17=6(233)0.8x÷22=0.4(234)18.7-5x=6.2(235)2x-20×6=10(236)x+27=70(237)52x-8x-1.7=51.1(238)7(2x+2)=42(239)x+1.5=6.7(240)0.9x-2.1=5.1(241)1.2x÷40=0.3(242)5.2x-3.3x=5.7(243)9(0.8x+0.3)=17.1(244)7x-3×4=65(245)0.3x-0.3×16=3.9(246)4(x+44)=200(247)1.2+0.3x=15(248)4.2÷x=2.1(249)x+3.1=4.6(250)10x-2x-12=20(251)8.5+22x=21.7(252)10x+5x-2.9=24.1(253)60x=180(254)(5.9x-5.1)÷19=4.7(255)6.2x-4.2x+2.7=34.7(256)19x-3×2.1=5.1(257)7x-3x-26=54(258)60÷x=6(259)91-x=16(260)x÷21=0.9(261)(4.6x+9.8)÷10=8.8(262)17x+12x-1=155.6(263)x+12=57(264)3x÷2=30(265)1.8x+0.5×33=29.1(266)139+2x=265(267)x+10=25(268)44x-3.4=5.4(269)46x+26x+4.6=26.2(270)1.5x+0.2×9=12.3(271)27x-18x-4.4=19(272)3.4x+0.2x+3.1=17.5(273)x-36=57(274)5x-2x-42=36(275)2x+7x-27=216(276)3x+2x-16=29(277)24x+73×2=218(278)0.2x=8.2(279)8x÷4=1.4(280)11(3x-41)=143(281)2.3x-0.9x-3.7=52.3(282)6.7x-2.9x-3.4=15.6(283)34x+55=157(284)3(x+29)=105(285)10x+8x=198(286)19x-12x-11=38(287)(8x-32)÷8=11(288)59x=118(289)18x-12x+43=85(290)79-x=18(291)0.2x=0.4(292)14+42x=26.6(293)0.4x-1.2×13=3.6(294)7.1x+4.1x-1.9=132.5(295)17.1-0.3x=4.8(296)(2.1x-0.9)÷36=0.5(297)19.4-21x=2.6(298)10(3x+4)=100(299)21x=84(300)0.8x-0.5×10=4.6(301)0.7x+1×5=23.9(302)8.2+x=16.7(303)34+x=121(304)(2x+1.2)÷6=3.2(305)2.8x=14(306)x+8.7=14(307)x-30=40(308)3.9x+0.7x=41.4(309)16.6-16x=10.2(310)21x+52=199(311)2x-4=5.2(312)2(15x-19)=172(313)(12x-20)÷2=98(314)189-2x=87(315)x-3.4=1.6(316)x+7.5=16.9(317)8.6x+4x-0.7=37.1(318)6x-14×0.3=1.8(319)15.4-2x=7.6(320)3(0.3x-2.4)=19.8(321)(3x+8.8)÷2=14.9(322)7.4x-6.4x+1.3=11.3(323)5x+57=157(324)13x-2x-34=10(325)63x=189(326)27x-2.9=10.6(327)(2.9x+2.4)÷2=27.3(328)35-x=28(329)19x+4.1=15.5(330)0.2x÷60=0.3(331)15.6+16x=25.2(332)3x+18×4=90(333)0.3x=10.8(334)157-27x=76(335)8x+6x=98(336)15x÷30=0.3(337)(6x-41)÷5=23(338)27x÷9=12(339)195÷x=3(340)0.4x=8(341)7x-11×3=156(342)(19x-11)÷21=4(343)5.6x÷8=1.4(344)2x÷4=12(345)12x-25×0.2=5.8(346)x+83=165(347)2.9x+4.1x=63(348)2.1x-0.8x-3.2=16.3(349)3.8x-3x-4.3=10.9(350)(9.7x+7.9)÷7=13.6(351)9.6-x=3.2(352)10(9x-4)=140(353)1.9x+0.2×3=19.6(354)4.4-x=3.7(355)19x+59=249(356)83x-21x-4.9=44.7(357)18x+2.7=22.5(358)5.7x-2.4x=13.2(359)2x=4.8(360)56x-31x-0.5=7(361)16x-35=61(362)2x-2×0.3=2(363)19x+30=144(364)(15x+36)÷21=6(365)12x+17x=174(366)x÷39=0.2(367)25x+7×2=214(368)(8x+26)÷3=86(369)x-2.9=4.9(370)x-49=12(371)7x-2x-1.4=45.1(372)0.2x÷12=1.6(373)x÷3=24(374)76x-37x+0.5=51.2(375)0.8x+0.2×24=20(376)10x+4×1.3=20.2(377)8.5x÷10=1.7(378)88x=176(379)0.6x=1.8(380)7.8x-6.6x+0.8=5.6(381)66x=13.2(382)8.5x-7.1x+3.9=16.5(383)77-x=10(384)3x+6x+15=96(385)x+9.4=10(386)x÷9=2.1(387)99x÷22=0.9(388)5.7x+5.3x=88(389)x-25=24(390)9x-2x+8=43(391)29x+4×36=289(392)15+0.2x=19(393)43x+66x+2.2=45.8(394)(4x+46)÷2=49(395)7x+8.9x+1.2=176.1(396)0.9x-1.5=1.2(397)7.9x-5.7x=13.2(398)17÷x=0.5(399)2x+26x-1.9=65.3(400)2x-4×1=1.2(401)71+x=103(402)148-2x=14(403)22x+17x-0.8=81.1(404)8x+14×0.3=23.4(405)168÷x=14(406)10x-2x=88(407)3.7x+2.6=17.4(408)2.8x-1.5=12.5(409)x-1.1=8.3(410)2x÷66=3(411)17.1-2x=13.7(412)9.3+x=12.6(413)25x-2×4.3=1.4(414)9.6x-6.7x+3.1=20.5(415)(9x+30)÷3=67(416)73-6x=31(417)6(x+3)=66(418)x-63=14(419)9+x=16(420)x÷23=0.8(421)2x+4.8=14.8(422)4.8x+2.2x-2=47(423)40x+40×0.5=36(424)8.1x-0.9x-0.9=42.3(425)15x-29×2=77(426)13x-58=98(427)(6.7x-3.7)÷4=10.8(428)3x+39×5=312(429)2x=1.6(430)46x-31x-1.8=7.2(431)4x+39=135(432)18x-4x=112(433)4x÷5=2(434)(9.4x-4.4)÷2=11.9(435)11(8x-6)=110(436)3x+2×4.5=15.6(437)5x-1.8=16.2(438)19x-3x=64(439)73x-30=116(440)72x÷8=1.8(441)5x-2.5=17.5(442)51x-5x+2=52.6(443)7x-4x+24=66(444)2x+5×4=192(445)9(1.5x-7.4)=14.4(446)6x-31×0.3=9.9(447)13x=39(448)18.8-0.4x=14.8(449)19x-8x+38=93(450)2(0.5x+4.7)=16.4(451)12.5÷x=2.5(452)18x+12x=270(453)6.5-x=1.7(454)(9x-18)÷3=15(455)14x+16x+44=254(456)17(4x-46)=170(457)178-31x=116(458)(13x-17)÷31=7(459)2(2.8x+0.9)=24.2(460)9x=162(461)0.3x=7.5(462)2x+7x-11=196(463)14.7+0.2x=25.7(464)(3.1x+1.7)÷5=2.2(465)14x-2x+3.4=73(466)14x-4x+26=86(467)28x=14(468)54x-4x-1.4=38.6(469)2(1.8x-7.1)=21.8(470)3(7x+16)=174(471)199-5x=39(472)(8.3x-8.1)÷26=3.2(473)14(0.4x+0.4)=22.4(474)0.9x+4.3x+1.9=85.1(475)8.3x+4.6x=103.2(476)7.2-x=6.4(477)60x+1.2=13.2(478)6÷x=0.3(479)3.3x=13.2(480)8.6-x=8(481)18x+3.3=8.7(482)5(0.7x+4.3)=35.5(483)174÷x=29(484)(2.4x+6.8)÷17=2.8(485)7.9x+4.9x+2.8=66.8(486)4x+2x-26=130(487)4(0.4x+5.1)=42.8(488)9x+20x+2.8=66.6(489)16-2x=7.2(490)x÷9=1.5(491)13x+17x+49=319(492)9+x=31(493)3x-23=109(494)45+x=127(495)9.6-3.7x=2.2(496)32x-47=49(497)7x+16×0.9=27.7(498)3x+5x=112(499)17x+4x-34=71(500)17x-6x-13=20(501)66x+4.4=17.6(502)18x-12×0.5=6.6(503)41+x=135(504)(3x+13)÷43=1(505)(8x+4)÷14=6(506)4x+1.1x=66.3(507)x+4.4=11.6(508)(9x-3)÷20=12(509)86x+89x-1.9=155.6(510)(5.5x+2.7)÷6=8.7(511)19x-16x=30(512)132÷x=12(513)79-x=74(514)x÷11=15(515)x+46=52(516)26x-3×15=33(517)0.8x+5.2=15.6(518)8.8x-0.2x=43(519)12x-9x+37=67(520)3x÷30=5(521)x+37=53(522)2.3x+2.6=16.4(523)78x+59x+2.7=112.3(524)4x+5x-40=14(525)5x+39x-3.7=97.5(526)16.2+97x=35.6(527)16(4.7x-8.1)=20.8(528)5x-2x+25=106(529)(14x-46)÷48=4(530)2x-12×3=10(531)2(12x-7)=106(532)48x+49=145(533)1.3x-4.1=15.4(534)8.2x=16.4(535)0.2x-5.3=9.1(536)4(5.4x-7.4)=35.2(537)x÷55=3(538)7.9-x=6(539)10.2÷x=0.2(540)17.6÷x=1.6参考答案(1)x=1.9(2)x=11(3)x=0.9(4)x=6(5)x=18(6)x=0.2(7)x=0.6(8)x=13(9)x=2(10)x=12(11)x=11(12)x=28(13)x=21(14)x=8(15)x=4(16)x=2(17)x=4(18)x=7.8(19)x=21(20)x=16(21)x=99(22)x=16(23)x=21(24)x=72(25)x=4(26)x=10(27)x=20(28)x=4(29)x=2.4(30)x=57(31)x=0.3(32)x=3(33)x=52(34)x=1.8(35)x=14(36)x=14(37)x=1.2(38)x=0.3(39)x=13(40)x=16(41)x=0.5(42)x=3.2(43)x=0.9(44)x=34(45)x=7.8(46)x=7(47)x=3(48)x=17(49)x=1.3(50)x=8(51)x=98(52)x=0.7(53)x=2(54)x=184(55)x=23(56)x=8.1(57)x=24(58)x=6(59)x=0.2(60)x=1.8(61)x=1.8(62)x=11(63)x=63(64)x=33(65)x=3(66)x=8(67)x=3.1(68)x=99(69)x=11(70)x=2(71)x=13(72)x=4(73)x=12(74)x=2(75)x=5.5(76)x=2(77)x=0.3(78)x=1.5(79)x=26(80)x=20(81)x=4(82)x=47(83)x=10.2(84)x=8(85)x=3(86)x=8(87)x=1.3(88)x=7(89)x=16(90)x=82(91)x=20(92)x=8(93)x=4(94)x=8(95)x=4(96)x=0.3(97)x=19(98)x=78(99)x=23(100)x=4(101)x=38(102)x=0.3(103)x=13(104)x=14(105)x=11(106)x=7(107)x=61(108)x=2(109)x=0.3(110)x=0.3(111)x=22(112)x=18(113)x=2.6(114)x=8(115)x=7.2(116)x=5.4(117)x=7.2(118)x=3(119)x=18(120)x=7(121)x=2(122)x=50(123)x=12(124)x=14(125)x=4(126)x=24(127)x=11(128)x=0.3(129)x=61(130)x=11(131)x=0.8(132)x=1(133)x=2.4(134)x=88(135)x=7(136)x=13(137)x=0.9(138)x=9.1(139)x=38(140)x=8.6(141)x=87(142)x=8(143)x=9(144)x=0.6(145)x=9(146)x=0.7(147)x=11(148)x=46(149)x=22(150)x=0.3(151)x=13(152)x=58(153)x=26(154)x=4(155)x=6(156)x=2(157)x=146(158)x=7.2(159)x=1.7(160)x=4(161)x=63(162)x=2(163)x=5(164)x=1.5(165)x=63(166)x=10(167)x=10.5(168)x=3(169)x=6(170)x=16(171)x=3.5(172)x=6(173)x=47(174)x=4(175)x=3(176)x=2(177)x=4.4(178)x=40(179)x=27(180)x=48(181)x=5(182)x=168(183)x=11(184)x=21(185)x=153(186)x=7(187)x=0.5(188)x=13(189)x=10(190)x=1.8(191)x=8.8(192)x=0.4(193)x=4(194)x=20(195)x=4(196)x=9.1(197)x=0.2(198)x=0.4(199)x=12(200)x=17(201)x=26(202)x=0.7(203)x=3(204)x=19(205)x=2(206)x=3(207)x=15(208)x=15(209)x=20(210)x=4(211)x=7(212)x=0.3(213)x=42(214)x=7.9(215)x=5.7(216)x=1(217)x=6.3(218)x=64(219)x=6(220)x=2(221)x=4.9(222)x=84(223)x=22(224)x=9.5(225)x=12(226)x=8(227)x=2.9(228)x=75(229)x=2(230)x=0.8(231)x=164(232)x=2(233)x=11(234)x=2.5(235)x=65(236)x=43(237)x=1.2(238)x=2(239)x=5.2(240)x=8(241)x=10(242)x=3(243)x=2(244)x=11(245)x=29(246)x=6(247)x=46(248)x=2(249)x=1.5(250)x=4(251)x=0.6(252)x=1.8(253)x=3(254)x=16(255)x=16(256)x=0.6(257)x=20(258)x=10(259)x=75(260)x=18.9(261)x=17(262)x=5.4(263)x=45(264)x=20(265)x=7(266)x=63(267)x=15(268)x=0.2(269)x=0.3(270)x=7(271)x=2.6(272)x=4(273)x=93(274)x=26(275)x=27(276)x=9(277)x=3(278)x=41(279)x=0.7(280)x=18(281)x=40(282)x=5(283)x=3(284)x=6(285)x=11(286)x=7(287)x=15(288)x=2(289)x=7(290)x=61(291)x=2(292)x=0.3(293)x=48(294)x=12(295)x=41(296)x=9(297)x=0.8(298)x=2(299)x=4(300)x=12(301)x=27(302)x=8.5(303)x=87(304)x=9(305)x=5(306)x=5.3(307)x=70(308)x=9(309)x=0.4(310)x=7(311)x=4.6(312)x=7(313)x=18(314)x=51(315)x=5(316)x=9.4(317)x=3(318)x=1(319)x=3.9(320)x=30(321)x=7(322)x=10(323)x=20(324)x=4(325)x=3(326)x=0.5(327)x=18(328)x=7(329)x=0.6(330)x=90(331)x=0.6(332)x=6(333)x=36(334)x=3(335)x=7(336)x=0.6(337)x=26(338)x=4(339)x=65(340)x=20(341)x=27(342)x=5(343)x=2(344)x=24(345)x=0.9(346)x=82(347)x=9(348)x=15(349)x=19(350)x=9(351)x=6.4(352)x=2(353)x=10(354)x=0.7(355)x=10(356)x=0.8(357)x=1.1(358)x=4(359)x=2.4(360)x=0.3(361)x=6(362)x=1.3(363)x=6(364)x=6(365)x=6(366)x=7.8(367)x=8(368)x=29(369)x=7.8(370)x=61(371)x=9.3(372)x=96(373)x=72(374)x=1.3(375)x=19(376)x=1.5(377)x=2(378)x=2(379)x=3(380)x=4(381)x=0.2(382)x=9(383)x=67(384)x=9(385)x=0.6(386)x=18.9(387)x=0.2(388)x=8(389)x=49(390)x=5(391)x=5(392)x=20(393)