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)x÷25=0.6(2)10x-4x+2.7=10.5(3)9x+7x-7=345(4)130+12x=190(5)2.4x-0.7x-1.9=28.7(6)22x-20x-0.2=1.4(7)14x+85x+2.2=31.9(8)8x+4.5=16.5(9)6x=16.8(10)14x+9×17=265(11)(16x+26)÷9=26(12)6.1-0.9x=1.6(13)7.1x+2.5x=57.6(14)6(6x-40)=192(15)2(14x-11)=34(16)49x-5×1.8=10.6(17)0.4+x=3.6(18)2x÷18=10(19)0.6x-2.3=1.3(20)92x-53x-1.5=10.2(21)15x-4x=66(22)15.5-0.3x=8.3(23)2(0.8x-4.9)=41.4(24)0.4x+0.7×9=8.3(25)4x+5.7=24.5(26)2x+2×1.7=12.2(27)21x+74x-3.3=91.7(28)2.8x=5.6(29)2.3x+6.2x-2.8=48.2(30)0.6x-0.2x-4.5=7.9(31)x÷97=2(32)10x+3x=104(33)7x-4x-17=37(34)x-2=16(35)(11x+10)÷8=26(36)13x-23×0.2=7.1(37)5x+6x+1.3=67.3(38)0.8x-0.4×23=2.8(39)x-68=28(40)11x+14x=100(41)4.8x+1.2x=114(42)14x-31=67(43)21x+58x-1.9=69.2(44)3.2x-0.8x-0.9=44.7(45)9.2+2x=18.8(46)16(1.5x-3.1)=22.4(47)10.2÷x=0.6(48)2x+55=127(49)36x=108(50)2(2.3x+7.3)=42.2(51)12x-47×0.2=3.8(52)2x+4.5=8.5(53)x-6.6=1.6(54)x-2=19(55)x-59=25(56)x+6.5=13.1(57)19x-11x+3=51(58)0.3x-1.1×3=6.6(59)28x÷8=21(60)x-4=86(61)10x-4x-1.5=51.3(62)x+35=55(63)7.6+22x=27.4(64)65x-20x+4.8=36.3(65)7x+5x-45=63(66)15.1+3.4x=28.7(67)2.8+0.3x=16.3(68)9.8+1.6x=17.8(69)4+2.1x=8.2(70)18.7÷x=1.7(71)14x=112(72)5.5+6x=13.9(73)5x+1.1x=73.2(74)112+25x=212(75)0.2x=19.4(76)x-5=1.7(77)11x=77(78)12x+25=133(79)x-5.7=2.9(80)4.2x÷7=2.4(81)12x÷24=4(82)(8.5x+0.2)÷6=5.7(83)6x+9x=180(84)3.5-x=3(85)2.1x-1.8x+4.8=13.8(86)2x=16.2(87)19.4-0.6x=6.2(88)8x-3×31=19(89)4x+11=139(90)106÷x=2(91)4x+21×0.7=17.1(92)3x-3×0.4=8.1(93)7x=70(94)7.3-x=5.4(95)17x-6x+18=95(96)2.4x+3.8=20.6(97)12x-26×2=80(98)4x+22×2=112(99)3.1x+6.7x-3.4=55.4(100)x÷78=0.2(101)9x-2.2=12.2(102)8.7÷x=2.9(103)30x-13=137(104)88x-32=144(105)x-0.2=1.1(106)7x-4x-38=22(107)x÷29=2(108)15x+12x-15=147(109)0.7x=13.3(110)0.3x+5.9=11.3(111)6.8x-4.8x+2.5=12.5(112)x-6=11(113)10.7+31x=16.9(114)13.8÷x=4.6(115)5.1x+0.3x=48.6(116)10x+2x+35=119(117)14x-4×2=4.6(118)14x+12x+26=234(119)67+3x=184(120)150-2x=78(121)21+x=108(122)12+5.2x=22.4(123)25x+30×6=355(124)4.2x+2.7x=62.1(125)18.4-0.2x=2.6(126)8x-6x=24(127)12x+59=179(128)9x+7×25=283(129)9.5-0.2x=4.5(130)0.3x+2.6=9.8(131)0.2x-4.4=2(132)7.6x+1.9x+4.3=42.3(133)2x+58=176(134)(2x+20)÷14=2(135)9.1x-2.3x=47.6(136)159-15x=69(137)98x+69x-2.3=131.3(138)1x+5.4=10.4(139)x+5.7=10.8(140)x+18=95(141)0.5x+2.2×2=24.4(142)17.1-4x=5.1(143)88-x=59(144)18x-8×1.4=1.4(145)5(9x-2)=170(146)30x-54=96(147)(4x+16)÷4=22(148)(13x+18)÷44=1(149)9x+16x+47=322(150)5.6x-3.6x-0.2=25.8(151)(7.4x+7)÷3=12.2(152)9x÷6=2.1(153)8x-5x=33(154)4x=2.8(155)8x-4.6=13(156)3.6x-1.2x=52.8(157)4.2x+5.3x=47.5(158)3x+23x+3.5=104.9(159)16x-9x-31=18(160)1.2x+2x+1.1=77.9(161)(3.6x+9.2)÷37=2(162)(9.2x-4.6)÷10=6.9(163)83x=16.6(164)0.3x-5.6=2.8(165)182÷x=14(166)19x-6x-30=74(167)15x-12x=12(168)2.4x-4.9=7.1(169)69x÷23=0.6(170)0.2x=11.2(171)2x÷25=4(172)9x÷36=0.3(173)9.9x÷9=2.2(174)6.9-x=2(175)14x+27x+2.2=30.9(176)5x+62×3=366(177)5x+4x+41=167(178)0.2x÷5=2.6(179)4.1x+2.8x-4.1=127(180)3(12x-21)=189(181)184÷x=2(182)17.5-3x=2.2(183)15x-8x+3.6=35.8(184)13x-8x+13=33(185)1.7+x=7.7(186)2x-14×4=94(187)4x-5×12=72(188)14x-8x+29=53(189)x-10=24(190)3x÷15=11(191)7.8x+6.8x+4.5=77.5(192)5x-19×8=28(193)4(5x+15)=120(194)14(16x-35)=182(195)97+10x=177(196)x-2.1=5(197)31x-25x-4.1=2.5(198)0.5x-0.6×2=4.8(199)8x+7×2.3=17.7(200)2.7+x=11.6(201)6x+2×0.7=20.6(202)2x+45=233(203)9.9÷x=1.1(204)(0.4x-1.9)÷7=0.3(205)14x-12x+14=34(206)46-x=12(207)17x-10x+1.3=3.4(208)33x+22×0.4=18.7(209)1.5x÷40=0.3(210)x÷10=17(211)1.1x-0.6x=8(212)36x-6x-1.8=19.2(213)6x÷4=2.7(214)2x+2.3=19.5(215)3+x=7(216)26x+10x-4.3=56.9(217)0.7+x=2.8(218)12x-3×1.8=5.4(219)x÷9=0.8(220)6.1x-1.5x=50.6(221)x÷22=0.6(222)156-6x=120(223)2x=176(224)6(1.9x-1.2)=49.8(225)6.1x-3.9x=33(226)8.4x-4.6x=34.2(227)96÷x=2(228)(5.8x+0.4)÷34=2.4(229)0.4x-4.2=15.8(230)28x=84(231)4x+66×2=200(232)8.3-4x=2.7(233)16+x=64(234)3x+2×2.4=10.8(235)12.7+33x=32.5(236)(2x+6)÷12=2(237)8(0.5x-3.3)=13.6(238)99x-77x-1.6=7.2(239)1.9x=5.7(240)2(1.5x+2)=37(241)9x+6x-19=206(242)31+10x=91(243)(4x-17)÷3=25(244)9x+4x=91(245)(5x+32)÷2=61(246)x+62=74(247)2x+30=84(248)1.3x+7x-0.2=49.6(249)198+49x=296(250)3(2.4x+3.7)=25.5(251)3x-3.7=2(252)81+x=148(253)x+4.5=4.9(254)3.9+x=7.1(255)9x-4.5=15.3(256)x+5.4=14.9(257)(9x-47)÷49=4(258)0.5x=16.5(259)4.1x+2.5x-0.8=12.4(260)119÷x=7(261)18.5-2x=1.5(262)8.4-x=3.1(263)x+9.3=9.5(264)18x-4x-2=26(265)2x=6.4(266)5x+2x+23=184(267)21x-3.8=15.1(268)27x-7x+2.6=60.6(269)x+9.8=11.9(270)4.8x+5.1x+4.6=64(271)(8.5x-9.6)÷2=12.2(272)1.2x÷24=0.4(273)0.2x+1.6×2=7.2(274)113-19x=56(275)21x-3×2=57(276)7x=11.9(277)2(2x+49)=134(278)82+x=146(279)88-x=28(280)31x+42=197(281)10.8-0.6x=3(282)60+x=100(283)0.8x-0.4x+3.1=17.5(284)13x+30x-3=108.8(285)4.8x-1.8=7.8(286)1x+1.6x-0.6=77.4(287)5x+3.3x+3.5=36.7(288)13x-10x=18(289)(8.5x-9.4)÷8=5.2(290)129-27x=21(291)13x-8x-7=48(292)36x÷90=0.2(293)2(2.1x+7.2)=39.6(294)5.9+x=10.7(295)3(4x+10)=102(296)12.2-0.4x=3(297)15.6÷x=0.3(298)12.6-6x=11.4(299)13x+8x=189(300)15x+6x-18=24(301)6x÷48=0.3(302)5x+7x+14=254(303)1.5x+4.2=17.7(304)1.1x-0.8x=4.5(305)24÷x=6(306)x+1=8.1(307)(14x+10)÷2=19(308)3(2x+4.6)=43.8(309)56-x=28(310)2.7+2x=7.1(311)x-1.5=1.6(312)0.6x=4.8(313)48-x=19(314)4x+37×2=142(315)2.2x-0.2×10=4.6(316)55x-1.5=15(317)90-8x=18(318)2x+1.9x=15.6(319)0.5x+4.6×4=31.4(320)129-3x=24(321)86+x=121(322)8(9x-14)=104(323)1.5x-0.8×9=6.3(324)24x+57x+0.3=32.7(325)22x+44x+1.5=126.9(326)38x-54=60(327)50x-46x+0.2=1.8(328)35x+79x-0.3=102.3(329)87x-1.3=16.1(330)2(x+23)=102(331)71x+95x+3.4=119.6(332)41x-15=108(333)(2.9x-3.5)÷4=10(334)6-x=2.4(335)5.7x÷3=3.8(336)x+5=78(337)3x-38=109(338)93x-62x+3.2=18.7(339)(4x-23)÷21=1(340)4.4x+3.8x+1.9=108.5(341)5x+10x+6=51(342)4x+5.7=23.3(343)x+20=57(344)x÷20=0.7(345)71-x=13(346)5.9x-3.4x-4.5=8(347)8.4x+8.3x=50.1(348)11x=4.4(349)0.2x+0.2×13=4.4(350)3.9x+1.4x-1=52(351)9.7x-2.2x+3.9=56.4(352)153÷x=17(353)x+84=108(354)x+49=136(355)6.2x+2x+2.8=101.2(356)27x+31×0.3=20.1(357)0.3x-0.3×40=2.7(358)x÷64=0.2(359)0.4x+4.3=12.7(360)10x-5x-36=29(361)23x+3.7=12.9(362)17.6-0.3x=4.7(363)16x-11x=45(364)x+3.2=4.3(365)54x÷6=1.8(366)(3.5x+8.9)÷29=2.6(367)x÷2=2(368)2(2x+6)=88(369)10.5+2.6x=26.1(370)76+x=160(371)28+x=113(372)98x-94x+4.7=8.7(373)15x-13x=22(374)1.2x-0.8x-0.8=18(375)(3.4x-2.2)÷18=2.9(376)15.3+56x=32.1(377)x-2.1=2.7(378)12x+6x=288(379)4.1+1.3x=18.4(380)8.6+x=12.6(381)x÷7=4(382)40x=8(383)1.2x+4.5=17.7(384)5(2x+30)=200(385)7-3x=6.4(386)1.5x-5=10(387)x÷2=2.9(388)6.4x-1.8x+0.6=46.6(389)3.7x+0.4×31=27.2(390)9.9-x=9.7(391)6x-3x-32=31(392)9.5+x=14.7(393)(4.3x+7.4)÷11=8.1(394)(0.8x+6.6)÷15=1.4(395)3x+4x-31=270(396)(3.1x-1.6)÷11=0.7(397)12x=120(398)6x-4×3.9=2.4(399)(x+28)÷36=1(400)80-x=30(401)5x-44×2=12(402)2(0.4x+7)=32.4(403)10x+4x-13=267(404)24x+57x-2.9=29.5(405)14x-5.7=12.5(406)31x+91x-1.7=95.9(407)x-45=18(408)x÷4=38(409)x+0.3=5.8(410)x÷12=14(411)6.7-x=2.4(412)4x÷11=0.8(413)4.8x=19.2(414)1.5x+8.4x-3.2=26.5(415)2x-46=64(416)19x+1.4=16.6(417)0.5x-1.5=11.5(418)46-x=11(419)7.6x-2.6x+1.8=21.8(420)3.2x÷10=1.6(421)(3.9x-3.2)÷2=29.6(422)0.3x+0.7×16=22.3(423)x÷6=2.5(424)4.2x÷6=1.4(425)119+8x=287(426)3.7+x=9.4(427)2.3x+2.2x+1.3=127.3(428)(4x-15)÷3=11(429)195+2x=217(430)6.4÷x=1.6(431)1.2x-3.6×4=2.4(432)46x-4x-2.8=5.6(433)(1.4x+4.2)÷6=3.5(434)16-3x=7(435)9.6÷x=1.6(436)22(0.2x-6.6)=35.2(437)6x=9(438)54x+24x+0.4=125.2(439)6x+13×4=178(440)4.2x-1.6x-1.7=11.3(441)11x-3×21=102(442)62-x=22(443)2(x+7)=26(444)x-18=47(445)21x-3×1.2=9(446)4x+7×1.4=17.8(447)4x-3.3=16.3(448)17x-7x-19=81(449)6.2-x=3.6(450)x÷21=8(451)8x=72(452)64÷x=16(453)1.9x+3.2=12.7(454)81x-45x-2.3=40.9(455)7x+9x-39=137(456)5x-47=153(457)4.5x-3.3x=21.6(458)18x+4×10=130(459)9.7-0.8x=8.1(460)38x=114(461)14x+50=148(462)1.4x-0.2x+4.9=26.5(463)5x-4.7x-1.3=3.5(464)5(0.2x+5.1)=28.5(465)57+29x=115(466)56x-14x+2.3=73.7(467)0.8x÷46=0.4(468)1x-0.4×13=3.8(469)14x+12x+38=324(470)(12x-48)÷36=6(471)13(2x-8)=182(472)10(0.5x-0.9)=31(473)55x+3.3=14.3(474)4x+7x+21=43(475)14x+19x=132(476)91x÷7=26(477)5.6x+5.8x=182.4(478)(2.4x-0.2)÷5=8.6(479)1.2x+7.1x+4.6=120.8(480)x+34=59(481)149-7x=86(482)17x-15x+4=22(483)87x-25x-4.2=57.8(484)6x-3x+2=26(485)7.6x-2.7x+1.3=60.1(486)2.6+2x=12(487)6x÷33=4(488)14x-6x+6=38(489)18x-12x=54(490)2(3x+7)=68(491)x+50=56(492)4(1.3x-4.2)=9.2(493)2x÷22=0.4(494)104-2x=16(495)4x÷16=8(496)(5x+10)÷5=15(497)0.8x-2.5×3=1.3(498)12x+6x=270(499)6(x-6.3)=22.2(500)1.8x-0.9x-2.7=29.7(501)44x+8x+4.3=56.3(502)2x+81x-0.5=41(503)x÷2=17(504)4(2.4x-0.2)=37.6(505)x÷30=0.5(506)6.6+0.7x=10.1(507)2.7+0.4x=14.3(508)3.6x-3.4x=3.2(509)8x÷28=6(510)18(12x-14)=180(511)2x+3.9=13.9(512)168÷x=28(513)2(1.4x+5.4)=47.2(514)5.3x+4.3x-0.9=27.9(515)15.5-11x=13.3(516)3.1x-4.8=13.8(517)4x+5x=81(518)6.6÷x=2.2(519)(18x-24)÷8=24(520)6.9-x=4.5(521)16x-5x+16=82(522)(10x-38)÷22=11(523)2.3x-1.5x+4.5=38.1(524)0.2x=17.6(525)5+2x=12.2(526)(3x-18)÷4=6(527)0.2x+2.6×3=13.8(528)5.9-10x=3.9(529)16x-8x=40(530)2.4x+2.4×3=19.2(531)3(14x-41)=87(532)11(1.3x+1.9)=49.5(533)(5x-38)÷32=1(534)4(2x+17)=156(535)5x+2×4.9=25.3(536)3x-3×39=69(537)0.3x+1.4=11.3(538)x-4.1=3.9(539)x-0.4=6.4(540)13x+8x-5=79参考答案(1)x=15(2)x=1.3(3)x=22(4)x=5(5)x=18(6)x=0.8(7)x=0.3(8)x=1.5(9)x=2.8(10)x=8(11)x=13(12)x=5(13)x=6(14)x=12(15)x=2(16)x=0.4(17)x=3.2(18)x=90(19)x=6(20)x=0.3(21)x=6(22)x=24(23)x=32(24)x=5(25)x=4.7(26)x=4.4(27)x=1(28)x=2(29)x=6(30)x=31(31)x=194(32)x=8(33)x=18(34)x=18(35)x=18(36)x=0.9(37)x=6(38)x=15(39)x=96(40)x=4(41)x=19(42)x=7(43)x=0.9(44)x=19(45)x=4.8(46)x=3(47)x=17(48)x=36(49)x=3(50)x=6(51)x=1.1(52)x=2(53)x=8.2(54)x=21(55)x=84(56)x=6.6(57)x=6(58)x=33(59)x=6(60)x=90(61)x=8.8(62)x=20(63)x=0.9(64)x=0.7(65)x=9(66)x=4(67)x=45(68)x=5(69)x=2(70)x=11(71)x=8(72)x=1.4(73)x=12(74)x=4(75)x=97(76)x=6.7(77)x=7(78)x=9(79)x=8.6(80)x=4(81)x=8(82)x=4(83)x=12(84)x=0.5(85)x=30(86)x=8.1(87)x=22(88)x=14(89)x=32(90)x=53(91)x=0.6(92)x=3.1(93)x=10(94)x=1.9(95)x=7(96)x=7(97)x=11(98)x=17(99)x=6(100)x=15.6(101)x=1.6(102)x=3(103)x=5(104)x=2(105)x=1.3(106)x=20(107)x=58(108)x=6(109)x=19(110)x=18(111)x=5(112)x=17(113)x=0.2(114)x=3(115)x=9(116)x=7(117)x=0.9(118)x=8(119)x=39(120)x=36(121)x=87(122)x=2(123)x=7(124)x=9(125)x=79(126)x=12(127)x=10(128)x=12(129)x=25(130)x=24(131)x=32(132)x=4(133)x=59(134)x=4(135)x=7(136)x=6(137)x=0.8(138)x=5(139)x=5.1(140)x=77(141)x=40(142)x=3(143)x=29(144)x=0.7(145)x=4(146)x=5(147)x=18(148)x=2(149)x=11(150)x=13(151)x=4(152)x=1.4(153)x=11(154)x=0.7(155)x=2.2(156)x=22(157)x=5(158)x=3.9(159)x=7(160)x=24(161)x=18(162)x=8(163)x=0.2(164)x=28(165)x=13(166)x=8(167)x=4(168)x=5(169)x=0.2(170)x=56(171)x=50(172)x=1.2(173)x=2(174)x=4.9(175)x=0.7(176)x=36(177)x=14(178)x=65(179)x=19(180)x=7(181)x=92(182)x=5.1(183)x=4.6(184)x=4(185)x=6(186)x=75(187)x=33(188)x=4(189)x=34(190)x=55(191)x=5(192)x=36(193)x=3(194)x=3(195)x=8(196)x=7.1(197)x=1.1(198)x=12(199)x=0.2(200)x=8.9(201)x=3.2(202)x=94(203)x=9(204)x=10(205)x=10(206)x=34(207)x=0.3(208)x=0.3(209)x=8(210)x=170(211)x=16(212)x=0.7(213)x=1.8(214)x=8.6(215)x=4(216)x=1.7(217)x=2.1(218)x=0.9(219)x=7.2(220)x=11(221)x=13.2(222)x=6(223)x=88(224)x=5(225)x=15(226)x=9(227)x=48(228)x=14(229)x=50(230)x=3(231)x=17(232)x=1.4(233)x=48(234)x=2(235)x=0.6(236)x=9(237)x=10(238)x=0.4(239)x=3(240)x=11(241)x=15(242)x=6(243)x=23(244)x=7(245)x=18(246)x=12(247)x=27(248)x=6(249)x=2(250)x=2(251)x=1.9(252)x=67(253)x=0.4(254)x=3.2(255)x=2.2(256)x=9.5(257)x=27(258)x=33(259)x=2(260)x=17(261)x=8.5(262)x=5.3(263)x=0.2(264)x=2(265)x=3.2(266)x=23(267)x=0.9(268)x=2.9(269)x=2.1(270)x=6(271)x=4(272)x=8(273)x=20(274)x=3(275)x=3(276)x=1.7(277)x=9(278)x=64(279)x=60(280)x=5(281)x=13(282)x=40(283)x=36(284)x=2.6(285)x=2(286)x=30(287)x=4(288)x=6(289)x=6(290)x=4(291)x=11(292)x=0.5(293)x=6(294)x=4.8(295)x=6(296)x=23(297)x=52(298)x=0.2(299)x=9(300)x=2(301)x=2.4(302)x=20(303)x=9(304)x=15(305)x=4(306)x=7.1(307)x=2(308)x=5(309)x=28(310)x=2.2(311)x=3.1(312)x=8(313)x=29(314)x=17(315)x=3(316)x=0.3(317)x=9(318)x=4(319)x=26(320)x=35(321)x=35(322)x=3(323)x=9(324)x=0.4(325)x=1.9(326)x=3(327)x=0.4(328)x=0.9(329)x=0.2(330)x=28(331)x=0.7(332)x=3(333)x=15(334)x=3.6(335)x=2(336)x=73(337)x=49(338)x=0.5(339)x=11(340)x=13(341)x=3(342)x=4.4(343)x=37(344)x=14(345)x=58(346)x=5(347)x=3(348)x=0.4(349)x=9(350)x=10(351)x=7(352)x=9(353)x=24(354)x=87(355)x=12(356)x=0.4(357)x=49(358)x=12.8(359)x=21(360)x=13(361)x=0.4(362)x=43(363)x=9(364)x=1.1(365)x=0.2(366)x=19(367)x=4(368)x=19(369)x=6(370)x=84(371)x=85(372)x=1(373)x=11(374)x=47(375)x=16(376)x=0.3(377)x=4.8(378)x=16(379)x=11(380)x=4(381)x=28(382)x=0.2(383)x=11(384)x=5(385)x=0.2(386)x=10(387)x=5.8(388)x=10(389)x=4(390)x=0.2(391)x=21(392)x=