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)(1.4x+3)÷6=1.2(2)13x-2x-21=56(3)9.1x+0.9x=40(4)x-38=14(5)2x+4.7=5.3(6)0.6x÷69=0.2(7)117÷x=39(8)x-5.9=2.9(9)2.9x-0.3×49=2.7(10)39x-20x-0.9=21.9(11)(10x-12)÷2=119(12)64x-43x-3.9=15(13)2x+6x+10=234(14)87x+38x-3.2=71.8(15)197-2x=169(16)2.4x+9.4x=23.6(17)92+x=189(18)170+16x=234(19)2.5+x=3.4(20)2x+4x=36(21)15.3-2x=8.3(22)9.9x-1.2x-4.8=82.2(23)(5x-22)÷3=36(24)14x-12x=22(25)88x-3.3=14.3(26)5x=17.5(27)1.4x-1.8=5.2(28)19x=114(29)7x-4.6=5.9(30)1.3x+2.1x=156.4(31)25x-2×65=70(32)12x-6x=24(33)6x-2x-1=9.8(34)x÷62=0.3(35)192+88x=368(36)x+9.2=13.8(37)(5x+16)÷6=26(38)x-2=20(39)2x=6.8(40)2x=62(41)6(3.3x-7.1)=36.6(42)13x=78(43)2x+37×3=293(44)12x+30=210(45)139+64x=331(46)12x÷24=3(47)1.2x=18(48)6.6x+9.3x=63.6(49)5x-16×4=36(50)185+14x=255(51)4.4+x=9.6(52)9x+11×1.2=16.8(53)13x+12×0.8=27.8(54)2.7x+2.9×2=19.3(55)18x+16x-5=233(56)79+x=101(57)6x+25x+4=25.7(58)x+24=56(59)3x-1.6=9.5(60)22x+26×0.4=23.6(61)39x+75x-0.9=101.7(62)60x+48=228(63)8.6x+9.5x-1.1=53.2(64)5.2x-2.5x=13.5(65)5x-11×2=123(66)19x+6x=100(67)x÷49=0.3(68)2x÷12=15(69)17.6÷x=0.4(70)(6.7x+9.7)÷24=1.8(71)10x+47x+0.3=114.3(72)15x-12x+29=50(73)8x+31×0.6=38.6(74)5x-2.1=17.9(75)2.5x+1.8×5=21.5(76)0.8x=17.6(77)7.1x-6.4x=1.4(78)85x+58x+3.8=61(79)4.1x-2.4x-4.3=26.3(80)x-1.2=6.1(81)12x-9x+20=38(82)x+1.5=10.3(83)6x÷20=3(84)80x+4x-2=82(85)8x÷84=0.2(86)11.8-0.9x=2.8(87)4.1+x=9.5(88)(2x+34)÷11=6(89)8.6÷x=4.3(90)4x=7.2(91)(3.8x+8.2)÷15=4.6(92)84+x=136(93)7-x=1.7(94)2x+1.2x-0.5=15.5(95)51x-27x-4.2=19.8(96)18÷x=0.2(97)3x-38=16(98)x+63=110(99)x-12=17(100)(8x-34)÷15=10(101)1.9x÷5=3.8(102)0.9x-5.7=5.1(103)23x+27×0.4=22.3(104)3.1x-1.5×2=6.3(105)2(1.3x+9.4)=31.8(106)65x-33x+2.9=50.9(107)2.4x+0.4×5=21.2(108)7x-7×5=70(109)16.2-0.8x=13(110)7-x=2.9(111)20x+4.2=16.2(112)17x-45=57(113)(3.4x-8.5)÷31=1.7(114)24x=4.8(115)17-1.4x=11.4(116)x÷32=0.2(117)53-x=18(118)8.7x+2.1x+1.1=87.5(119)69x-21=117(120)3(2x-17)=75(121)x-36=27(122)3x+2x-9=101(123)3.6+2.8x=9.2(124)15x-4x-45=21(125)12x-2x=160(126)x+54=85(127)8.2x-1.3x-1=40.4(128)130+2x=166(129)19+5x=38(130)4x=76(131)0.6x÷3=2.2(132)14.4+1x=30.4(133)4x=92(134)(2x+38)÷21=2(135)x+49=145(136)(15x+34)÷2=137(137)(4.1x-3.1)÷23=0.4(138)7.9x-7.2x=8.4(139)1.2x-1x+1.2=2.2(140)14.5+7x=19.4(141)76-23x=30(142)0.4x+2.8=13.6(143)15x+2x=68(144)62x+96x-4.8=121.6(145)2(21x+14)=196(146)3.8x=11.4(147)6.4-x=3(148)74x+38x-2.8=131.6(149)x-3.7=3.4(150)11.5+2x=12.5(151)61x+9x+1.2=29.2(152)0.4x=12(153)97+x=140(154)x÷25=5(155)1.3x+1.7x-0.5=158.5(156)0.3x+0.3×39=18(157)x-7.2=1.2(158)37x-24=161(159)6(0.7x-4.1)=30(160)1.2x+7.4x-4.7=55.5(161)x+72=159(162)5x-2x+28=106(163)8x+13x+15=330(164)26x+32x+3.7=108.1(165)0.7x+0.3×43=28.3(166)17x-8x=90(167)37x=74(168)x-46=40(169)94-x=86(170)0.2x-5.3=13.3(171)2.2x÷11=0.6(172)(2.3x+4.4)÷20=1.6(173)0.9x+5=22.1(174)3(27x+3)=171(175)70x-3.7=10.3(176)69÷x=23(177)23x-13x+0.4=29.4(178)x-50=41(179)5.2-x=2(180)4(1.7x+7.3)=42.8(181)7x-15×0.4=4.5(182)21x+8×13=230(183)5.1-2x=3.7(184)18+10x=168(185)10x+18x=252(186)1.8x+2.4=6(187)5x+2×29=148(188)37x+14x-2=94.9(189)131-4x=63(190)39x-10x-0.4=72.1(191)17.7-1.6x=4.9(192)x÷12=1.6(193)21x÷7=0.6(194)23x=11.5(195)9.4x-1.4x-0.9=15.1(196)11.2+7.9x=27(197)2.5x+3.2x-4.7=115(198)2.4x-1.1x=46.8(199)0.2x-4=15.6(200)x÷16=3(201)2x=12.8(202)2.2x=6.6(203)3x+2×56=286(204)(9x-0.8)÷22=1.6(205)0.6x÷45=0.2(206)8x-4.5=13.9(207)3(4x+14)=186(208)3(1.5x+1.1)=43.8(209)12x-6x+21=75(210)x÷52=2(211)10.9+3x=22.3(212)x+6.1=8.8(213)176-21x=50(214)2(3x-16)=52(215)0.2x÷12=1.4(216)41+x=119(217)4(16x+13)=180(218)31x-2×4.9=2.6(219)x-39=36(220)7(4x-4)=112(221)19-1.6x=7.8(222)13x-7x+24=42(223)5.9x+1.2=13(224)9.6x-6.5x=15.5(225)(3x+43)÷2=26(226)3x-1.8=15.9(227)5x+10x=90(228)6.1+1.5x=25.6(229)11.5÷x=2.3(230)6x÷12=1.4(231)11(0.9x-6.7)=25.3(232)12.1-11x=5.5(233)163+25x=313(234)0.2x-3.3=7.1(235)10x+49=119(236)3x+3.7=16.6(237)2x+7×8=190(238)3x÷66=2(239)3.4+2x=3.8(240)(7.5x+1.8)÷7=2.4(241)25x-13×0.2=17.4(242)9.5x-3.2x-3.6=27.9(243)2x+7x+19=145(244)84x+12x+3.7=51.7(245)7.9+24x=27.1(246)198+15x=378(247)2(1.6x+8.2)=26(248)6.3x+6.6x=64.5(249)8.5÷x=1.7(250)2(3x-37)=130(251)14x÷18=7(252)(3.7x-1.8)÷6=7.1(253)5x-23×5=45(254)6x÷12=1.3(255)(4.5x-7.4)÷4=18.4(256)2(2.4x+8.7)=27(257)6x+4x-44=136(258)3(2x-34)=126(259)14.9-0.2x=12.3(260)(11x-9)÷29=5(261)17.1+1.1x=21.5(262)16.9+2x=24.5(263)9.8+x=15.6(264)24x-4×2.7=8.4(265)7.2x+3.8=18.2(266)21x-10x+2.9=37(267)16.4+4x=18(268)7.9x+3.5x+2.6=25.4(269)3.8x-0.4×11=10.8(270)1.3x=19.5(271)9(5x-5.8)=37.8(272)18x+13x+15=201(273)25-x=21(274)18.7+3.7x=37.2(275)6x+4=5.2(276)11(0.3x-0.2)=20.9(277)94x+40x-2.7=104.5(278)x÷63=3(279)4x-0.5x+0.5=11(280)42x-9x-2.2=11(281)8.5x-1.3x-3.2=61.6(282)4(x+5.9)=47.6(283)8.2-6x=4.6(284)2.6x-1.1x+0.4=19.9(285)78-x=26(286)176÷x=22(287)1.8x-0.8×7=7(288)13x-4x+26=44(289)4.3x+3.6x+1.1=127.5(290)7x-6.8x+3.8=5.2(291)x-4.3=4.2(292)151-11x=85(293)90-8x=50(294)14x+6×25=206(295)3.6x+7.5x+1.1=89.9(296)5.2x-3.9x+1=8.8(297)2.9x-3.2×4=4.6(298)0.9x+4.9=20.2(299)8.7x-2x+2.6=69.6(300)3.6x-3.8=7(301)2(0.6x+3.8)=18.4(302)4x+11x+3=133.5(303)25x-40=85(304)69-x=42(305)9(4.4x-5.9)=26.1(306)4.4x-1.3×9=1.5(307)(2.2x+2)÷27=0.4(308)1.1x+4.5=13.3(309)(1.8x+3.3)÷39=0.5(310)3(0.4x+8.2)=30.6(311)44+x=66(312)29x+5×7=93(313)14x÷20=0.7(314)(15x+23)÷2=109(315)x+9.1=10.8(316)11x-54=122(317)19x-2x+2.3=43.1(318)11x-4×3.3=5.5(319)12x+4x+0.2=99.4(320)6x-36×0.2=3(321)24x=192(322)19x+13x+13=237(323)2x-55×2=62(324)x÷29=0.5(325)2x÷47=4(326)4.6x-2.4x=35.2(327)x+15=39(328)4x+18×0.6=19.6(329)(10x+40)÷15=16(330)5(0.4x-7)=43(331)14x-6x+26=50(332)9.9x+2.9x=76.8(333)61x+95x-0.3=46.5(334)x+5=7.6(335)31x-11x+0.9=30.9(336)7(2x-14)=168(337)x÷10=0.7(338)118÷x=2(339)17x-6x-29=92(340)17x-11x-9=33(341)33x-31×0.2=7(342)48x÷32=3(343)(15x+18)÷6=8(344)12.1-1.3x=9.5(345)7(x+4)=189(346)7.5x-3.1x+1.1=53.9(347)0.2x=18.8(348)x÷6=2.9(349)0.4x+2.6=3.8(350)2x+4x-43=143(351)17.4-3x=12(352)(8.5x-2.3)÷3=30.4(353)3(0.3x+3.1)=25.5(354)9.6x+0.8x-1.1=19.7(355)(14x-7)÷23=7(356)(1.1x+2)÷7=0.6(357)6.7-10x=4.7(358)6.7x+0.7x-4.8=76.6(359)(4x+12)÷20=2(360)13x-3x-16=124(361)3x+4.8=18(362)x-41=53(363)9x-2×7=13(364)x÷7=14(365)41x+45=168(366)28x-4.2=12.6(367)8.2x=16.4(368)16x+18x+33=407(369)2x+11×1=16.8(370)5x+17x=66(371)(19x-49)÷3=9(372)48x-3.6=15.6(373)51÷x=17(374)x-4=1(375)4x+9x=273(376)5x+47=92(377)0.8x-1.2×11=3.6(378)x+18=64(379)82x-78x+4.6=8.6(380)9(6x-26)=198(381)5(x+2)=20(382)2.6x+2.3x+0.6=132.9(383)(12x-20)÷4=28(384)193-18x=121(385)x-3.7=2.3(386)1.6x+0.8x+0.6=147(387)17.1÷x=0.9(388)8x-3x=35(389)(7.5x-9.9)÷3=24.2(390)0.8x÷16=0.7(391)7.9-x=7.2(392)0.4x+8.7x=81.9(393)15x÷12=1(394)27x+36=198(395)10x÷6=0.5(396)12÷x=2(397)x+8.3=13(398)30÷x=10(399)2x+53=71(400)0.8x+2.4x+2.7=60.3(401)x÷74=2(402)90÷x=5(403)x÷21=3(404)6x-1=11(405)10x÷30=0.2(406)3x-47×0.2=4.1(407)4.3x=17.2(408)46x-38x-3.6=3.6(409)1.1x-0.7×18=3.9(410)8.2-x=1.8(411)57-x=29(412)12+x=96(413)3x-30=129(414)88-x=66(415)1.8x-0.5x=65(416)178+18x=358(417)x+67=145(418)1.5x-0.8x=7.7(419)x+7.9=13.1(420)62x-58x+4.1=9.3(421)3x=126(422)7.5x+4.3x-0.3=141.3(423)18.8-0.3x=16.7(424)0.9x+7.1x=96(425)135÷x=5(426)13x-2x-7=114(427)14.4-14x=11.6(428)9.4÷x=4.7(429)(3.1x-6.8)÷19=1.6(430)6x+4×3.6=17.4(431)29x+77x+4.8=89.6(432)1.6x+0.2×47=20.6(433)3(2x-17)=195(434)x÷12=0.7(435)8x+7×10=198(436)4x+8×1.2=10.4(437)15x÷6=20(438)20x=18(439)3x+58=97(440)2x+4.1=7.5(441)4x+0.8x+0.6=87(442)12.7-15x=6.7(443)9.2-x=3.5(444)3.5+x=8.9(445)5x+1=14(446)5.8+5x=20.8(447)x÷6=2.2(448)(1.6x-4.4)÷10=1.8(449)9.2+x=18.3(450)(7.8x+3.4)÷38=0.5(451)15.3+3x=20.4(452)12x+15x-22=194(453)199-2x=153(454)52+x=75(455)x+22=64(456)7x+4x-15=293(457)8x-3×0.2=9(458)55-x=31(459)3.8+x=7.7(460)(11x-10)÷25=4(461)17.7-4x=3.7(462)3.7+x=8.9(463)0.5x÷3=1.5(464)3.1x-0.3×15=4.8(465)4x-2.4=9.6(466)4x=188(467)5÷x=0.5(468)7(25x-47)=196(469)16(4.2x-6.1)=36.8(470)9x=15.3(471)62x+41x-3.4=161.4(472)69x-10x+1.8=31.3(473)16x-4x-40=56(474)7x-4x+39=99(475)9x+6x+13=268(476)2x+3x=215(477)5.9x-5.2x=11.2(478)0.7x÷28=0.4(479)136-17x=102(480)59x-39x-2.7=29.3(481)15x-3x-28=104(482)15x-12x+29=56(483)12x-4x-0.6=9.8(484)0.4x-1.9=7.7(485)19x+2x-44=19(486)5.2-x=1.4(487)3x+48=174(488)5x-55=30(489)2(3x+30)=84(490)3x-2×38=95(491)17x-7x=100(492)x÷6=6(493)17x+2x-13=177(494)8.1+0.7x=27.7(495)x+2.3=6.7(496)4.8-0.3x=2.7(497)x-10=78(498)6x+7×28=340(499)8x+5x+20=189(500)5(8x+8)=160(501)0.4x+8.8x-2.6=15.8(502)2x-59×2=26(503)40x÷32=5(504)26x+2.5=7.7(505)7x+8.6x+0.2=31.4(506)8x-3x=30(507)6÷x=0.5(508)4x=2.4(509)48x-52=44(510)2x+2.5=4.1(511)0.4x+0.5×36=18.8(512)8(x+17)=184(513)3x+11x+48=258(514)55x÷10=1.1(515)16x+10x=156(516)x+5.2=14.2(517)4x+5x-11=232(518)x-2.5=5.8(519)51-x=23(520)3x+6.6x=57.6(521)11.9+0.6x=25.1(522)11x-8x=51(523)6.1-x=1.4(524)0.6x+1.4×13=20.6(525)18x-3x=105(526)0.7x-0.4x-3.4=3.8(527)3.4x-2.5x+2.8=11.8(528)(16x-45)÷17=3(529)1.4x+3.7=21.9(530)9.8x-4.6x+4.9=25.7(531)5+x=31(532)6.6x-2.8x-0.9=6.7(533)80x-10x+1.2=36.2(534)2.9x-0.3x-2.4=54.8(535)x-2=3.1(536)3(0.8x-2.9)=39.3(537)x÷2=28(538)1x+0.6×8=23.8(539)5x-2x-31=26(540)3.9+x=8.1参考答案(1)x=3(2)x=7(3)x=4(4)x=52(5)x=0.3(6)x=23(7)x=3(8)x=8.8(9)x=6(10)x=1.2(11)x=25(12)x=0.9(13)x=28(14)x=0.6(15)x=14(16)x=2(17)x=97(18)x=4(19)x=0.9(20)x=6(21)x=3.5(22)x=10(23)x=26(24)x=11(25)x=0.2(26)x=3.5(27)x=5(28)x=6(29)x=1.5(30)x=46(31)x=8(32)x=4(33)x=2.7(34)x=18.6(35)x=2(36)x=4.6(37)x=28(38)x=22(39)x=3.4(40)x=31(41)x=4(42)x=6(43)x=91(44)x=15(45)x=3(46)x=6(47)x=15(48)x=4(49)x=20(50)x=5(51)x=5.2(52)x=0.4(53)x=1.4(54)x=5(55)x=7(56)x=22(57)x=0.7(58)x=32(59)x=3.7(60)x=0.6(61)x=0.9(62)x=3(63)x=3(64)x=5(65)x=29(66)x=4(67)x=14.7(68)x=90(69)x=44(70)x=5(71)x=2(72)x=7(73)x=2.5(74)x=4(75)x=5(76)x=22(77)x=2(78)x=0.4(79)x=18(80)x=7.3(81)x=6(82)x=8.8(83)x=10(84)x=1(85)x=2.1(86)x=10(87)x=5.4(88)x=16(89)x=2(90)x=1.8(91)x=16(92)x=52(93)x=5.3(94)x=5(95)x=1(96)x=90(97)x=18(98)x=47(99)x=29(100)x=23(101)x=10(102)x=12(103)x=0.5(104)x=3(105)x=5(106)x=1.5(107)x=8(108)x=15(109)x=4(110)x=4.1(111)x=0.6(112)x=6(113)x=18(114)x=0.2(115)x=4(116)x=6.4(117)x=35(118)x=8(119)x=2(120)x=21(121)x=63(122)x=22(123)x=2(124)x=6(125)x=16(126)x=31(127)x=6(128)x=18(129)x=3.8(130)x=19(131)x=11(132)x=16(133)x=23(134)x=2(135)x=96(136)x=16(137)x=3(138)x=12(139)x=5(140)x=0.7(141)x=2(142)x=27(143)x=4(144)x=0.8(145)x=4(146)x=3(147)x=3.4(148)x=1.2(149)x=7.1(150)x=0.5(151)x=0.4(152)x=30(153)x=43(154)x=125(155)x=53(156)x=21(157)x=8.4(158)x=5(159)x=13(160)x=7(161)x=87(162)x=26(163)x=15(164)x=1.8(165)x=22(166)x=10(167)x=2(168)x=86(169)x=8(170)x=93(171)x=3(172)x=12(173)x=19(174)x=2(175)x=0.2(176)x=3(177)x=2.9(178)x=91(179)x=3.2(180)x=2(181)x=1.5(182)x=6(183)x=0.7(184)x=15(185)x=9(186)x=2(187)x=18(188)x=1.9(189)x=17(190)x=2.5(191)x=8(192)x=19.2(193)x=0.2(194)x=0.5(195)x=2(196)x=2(197)x=21(198)x=36(199)x=98(200)x=48(201)x=6.4(202)x=3(203)x=58(204)x=4(205)x=15(206)x=2.3(207)x=12(208)x=9(209)x=9(210)x=104(211)x=3.8(212)x=2.7(213)x=6(214)x=14(215)x=84(216)x=78(217)x=2(218)x=0.4(219)x=75(220)x=5(221)x=7(222)x=3(223)x=2(224)x=5(225)x=3(226)x=5.9(227)x=6(228)x=13(229)x=5(230)x=2.8(231)x=10(232)x=0.6(233)x=6(234)x=52(235)x=7(236)x=4.3(237)x=67(238)x=44(239)x=0.2(240)x=2(241)x=0.8(242)x=5(243)x=14(244)x=0.5(245)x=0.8(246)x=12(247)x=3(248)x=5(249)x=5(250)x=34(251)x=9(252)x=12(253)x=32(254)x=2.6(255)x=18(256)x=2(257)x=18(258)x=38(259)x=13(260)x=14(261)x=4(262)x=3.8(263)x=5.8(264)x=0.8(265)x=2(266)x=3.1(267)x=0.4(268)x=2(269)x=4(270)x=15(271)x=2(272)x=6(273)x=4(274)x=5(275)x=0.2(276)x=7(277)x=0.8(278)x=189(279)x=3(280)x=0.4(281)x=9(282)x=6(283)x=0.6(284)x=13(285)x=52(286)x=8(287)x=7(288)x=2(289)x=16(290)x=7(291)x=8.5(292)x=6(293)x=5(294)x=4(295)x=8(296)x=6(297)x=6(298)x=17(299)x=10(300)x=3(301)x=9(302)x=8.7(303)x=5(304)x=27(305)x=2(306)x=3(307)x=4(308)x=8(309)x=9(310)x=5(311)x=22(312)x=2(313)x=1(314)x=13(315)x=1.7(316)x=16(317)x=2.4(318)x=1.7(319)x=6.2(320)x=1.7(321)x=8(322)x=7(323)x=86(324)x=14.5(325)x=94(326)x=16(327)x=24(328)x=2.2(329)x=20(330)x=39(331)x=3(332)x=6(333)x=0.3(334)x=2.6(335)x=1.5(336)x=19(337)x=7(338)x=59(339)x=11(340)x=7(341)x=0.4(342)x=2(343)x=2(344)x=2(345)x=23(346)x=12(347)x=94(348)x=17.4(349)x=3(350)x=31(351)x=1.8(352)x=11(353)x=18(354)x=2(355)x=12(356)x=2(357)x=0.2(358)x=11(359)x=7(360)x=14(361)x=4.4(362)x=94(363)x=3(364)x=98(365)x=3(366)x=0.6(367)x=2(368)x=11(369)x=2.9(370)x=3(371)x=4(372)x=0.4(373)x=3(374)x=5(375)x=21(376)x=9(377)x=21(378)x=46(379)x=1(380)x=8(381)x=2(382)x=27(383)x=11(384)x=4(385)x=6(386)x=61(387)x=19(388)x=7(389)x=11(390)x=14(391)x=0.7(392)x=9(393)x=0.8(394)x=6(395)x