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+8x+26=356(2)1.8x-4.5=11.7(3)3.9x-0.2×33=1.2(4)0.4x+1.5×13=28.7(5)26x-24x+3.4=8(6)14x÷63=2(7)20x+4.4=18.4(8)5(7x-16)=130(9)4x+8x=252(10)1x÷5=3.6(11)1.2x+0.3x-4.7=55.3(12)7x=12.6(13)7+6x=13.6(14)4(4x-40)=128(15)16x+13x-18=185(16)6x+10×15=210(17)126-4x=38(18)9x+17x=286(19)7x+2x=252(20)168÷x=8(21)55x-53x+1.4=4.6(22)0.4x+3.1=19.1(23)5(1.6x+4.6)=39(24)2(3x-39)=132(25)3x-8×15=63(26)4x+2.8x-2.8=99.2(27)x÷4=1.8(28)5x=19.5(29)1x+4.7x-1.5=61.2(30)16.8÷x=2.4(31)(12x-19)÷7=23(32)15x-4x-2=97(33)10x-6x+17=93(34)9x÷12=3(35)0.6x÷54=0.2(36)15.3-3x=11.7(37)(6.2x-2.6)÷4=7.1(38)16x÷32=0.6(39)7(5.2x-5.6)=33.6(40)3(x-6.8)=15.6(41)8.9x-8.7x=2(42)73x+64x-2.2=66.3(43)x-8.7=1.2(44)6(x+18)=162(45)10x-39=141(46)5.1+15x=21.6(47)x÷6=5(48)0.9x+1.1×3=5.1(49)5.1x+3.6=18.9(50)4x-4×3=164(51)52x-29x+3.8=31.4(52)46x-36×0.2=11.2(53)13x+2.7=9.2(54)9x+18×7=315(55)6.3-x=3.7(56)2.1x÷7=0.9(57)9.2+x=17.8(58)x÷14=12(59)6+x=13.9(60)3.4x+4.6×4=32(61)0.6x=9.6(62)3.7x+3x=160.8(63)(10x+30)÷4=30(64)7.4x+4.5x-2=57.5(65)74x-38x-3.2=22(66)3x+38×0.4=28.4(67)(x-4)÷12=2(68)(4x-32)÷7=8(69)(2.1x+8.4)÷14=1.2(70)80x÷20=8(71)15x+13x-9=299(72)21x÷3=14(73)7x÷21=9(74)4-2x=1.6(75)169-68x=33(76)x-17=48(77)10x-5×0.9=12.5(78)4.5+9x=22.5(79)x-27=15(80)11x-12×0.5=12.7(81)14x÷28=6(82)91+x=152(83)61+x=160(84)2x-48=48(85)120÷x=15(86)2x=68(87)(4x+28)÷20=3(88)(18x+8)÷2=139(89)16.4-0.3x=8.6(90)57x-5.5=5.9(91)3.8x-0.3x+4.3=49.8(92)1.5x÷6=1(93)1.1x-1.2×8=3.6(94)77+x=111(95)40x÷50=0.4(96)22x=19.8(97)x-1.1=2.3(98)x+37=61(99)13.1-1.4x=6.1(100)62x+48x-1=54(101)45-x=11(102)(0.3x+4.6)÷11=0.5(103)12x-8x+38=74(104)13x-8x=20(105)55x-42x-2.7=1.2(106)172-32x=76(107)8.4x-3.4x-1.5=33.5(108)1.1x-5.5=4.4(109)x+55=124(110)2x+44=200(111)3x+12x-19=11(112)x-53=32(113)30x+51x+2=131.6(114)17x-5x=24(115)x-25=33(116)9.7x-3.8x=53.1(117)19.7+0.6x=31.1(118)2x-2.7=7.5(119)x-24=57(120)2.5x+0.3x+2.8=39.2(121)3(6x-23)=57(122)1.7x+2.9x=151.8(123)x÷57=0.2(124)10x÷36=5(125)(3.2x-0.8)÷7=7.2(126)9x+12x-0.8=11.8(127)1.6x-0.6x+1.7=10.7(128)3(1.2x-4.5)=33.3(129)10÷x=2.5(130)34x÷6=1.7(131)18.7+0.9x=27.7(132)1.6x+1.1=10.7(133)4(6x+17)=188(134)81x+95x-3.6=154.8(135)x-6.5=2.8(136)11.3-0.3x=7.7(137)x÷8=4(138)12.9+2x=29.9(139)17x-9x+39=87(140)10x=130(141)18÷x=2(142)95-x=77(143)x-28=61(144)5.4x-4.5x=8.1(145)x÷11=18(146)14x-10x+46=62(147)93x-9x+1.2=68.4(148)1.2x+2.7x+1.3=133.9(149)8x+3.7=23.7(150)2.8x÷35=0.4(151)36+x=134(152)(1.6x-6.4)÷32=0.7(153)6.5x-3.8x+4.5=28.8(154)2x+3.5=11.3(155)3x+2×24=93(156)2.7x+0.3×10=21.9(157)x÷44=0.3(158)2.3+0.4x=21.9(159)4.8x÷16=0.6(160)5(x+10)=105(161)8(0.4x-1.4)=30.4(162)14x-16×0.6=3(163)17.3-0.2x=6.9(164)66-x=50(165)4+x=10.6(166)1.1x-1.7=17(167)x+0.2=6.8(168)2.9x+3.2x=48.8(169)5x=8.5(170)3x÷2=3.3(171)112÷x=14(172)13x-8x=75(173)x+18=32(174)2(0.2x+6)=19.6(175)126÷x=42(176)x+9=49(177)x÷6=10(178)5.8+0.2x=21.8(179)20x+18×0.7=32.6(180)0.2x=19.2(181)(11x-17)÷2=19(182)9x+15x=120(183)126+20x=266(184)9.5-x=6.9(185)0.4x-4.2=9.4(186)23x=184(187)94x+57x+4.2=125(188)1.7x+3.4=13.6(189)19.6-80x=3.6(190)6x÷15=0.4(191)42-x=24(192)7(3x-15)=126(193)0.7x-0.5x-4.9=7.5(194)7.8x-3.1x+4=18.1(195)17.7-5x=15.7(196)0.4x÷19=0.8(197)47x+15x-3.3=58.7(198)27x-16=173(199)3.5x-2.3×5=2.5(200)2(1.1x-5)=7.6(201)0.7x+6.6x+0.7=102.9(202)4.2+2.6x=9.4(203)2.4÷x=0.2(204)1.4x+0.8×5=12.4(205)15.4-6x=5.8(206)0.3x-1.9=6.5(207)3x-57=51(208)9.1x-2.5x+3.1=49.3(209)1.9x+5.6=22.7(210)6.8x+5.7x+0.2=37.7(211)4x+3.7=6.1(212)5x-18×0.7=1.9(213)7x-3.2=16.4(214)9.6x-0.7x=53.4(215)24÷x=8(216)0.6x+1.5×9=27.9(217)17x+3x=80(218)x+5.2=8(219)16x-5x=132(220)x+15=39(221)x-33=53(222)4x+9×1.9=22.7(223)117+7x=201(224)8x-2.5=17.5(225)0.8x+3.4x=8.4(226)(4.1x+6.3)÷8=9.5(227)2.7x=8.1(228)x÷28=0.5(229)6.2x+1.9x=89.1(230)19x-12x=35(231)90+2x=126(232)9.6÷x=0.4(233)(7.1x-8.4)÷24=3.2(234)19.9+3x=23.8(235)x+8.8=10.1(236)9.5+x=11.1(237)43+x=136(238)19.1-34x=8.9(239)9.4x-7.2x-0.8=8(240)6x-1.3x+3.6=60(241)8.4÷x=0.6(242)3x=14.1(243)6x-33=141(244)3x+10x-25=118(245)62x-22x-4.6=7.4(246)2x÷15=0.4(247)43x+39x+4.4=37.2(248)1.8+x=3.1(249)2(2x+12)=192(250)62+6x=254(251)1.1x+1=8.7(252)2(x+44)=158(253)7x+6×31=382(254)25x-19x-1.4=4.6(255)118+4x=302(256)5x=180(257)13x-3x-20=70(258)2.2x+1.7x+2.8=49.6(259)9x-25×4=62(260)28x-9×0.2=15(261)3x+3.2=15.2(262)38x=76(263)8.1x-1.8x=50.4(264)13x+2x+20=65(265)2x=180(266)5.8-x=2(267)(2.4x+9)÷6=7.5(268)18.5-7.4x=3.7(269)1.1x+4x=112.2(270)10x-55=145(271)22(0.2x-6.3)=33(272)(10x+34)÷22=7(273)2(4x-33)=166(274)39x-4.2=3.6(275)25÷x=5(276)2x+37=43(277)97x-19x+3=57.6(278)17x+47x+2.7=21.9(279)10x-5x-34=51(280)2.3x=11.5(281)2.7x+0.8x+2.6=16.6(282)1.4x-0.5×2=7.4(283)4(0.2x+0.2)=25.6(284)9x+11x+0.9=48.9(285)5x=195(286)16x+17x+37=301(287)2.3x-0.6×11=4.9(288)13.3-2.4x=8.5(289)3x+57=171(290)8.4÷x=0.2(291)6.4+0.4x=20(292)(6x-3)÷37=3(293)4.1+7x=16.7(294)72x÷8=1.8(295)9.5+0.2x=20.9(296)11x+10x+2.8=122.5(297)85-x=71(298)3x+12×5=72(299)8.8x+2.7x-2=113(300)x÷14=1.1(301)16x+30x-1.3=122.9(302)x+1.6=9.3(303)7x+4×3.4=21.3(304)9x-31×0.2=6.4(305)56x-32x+0.7=24.7(306)x-27=56(307)2x÷2=3(308)6x÷12=1.2(309)9.3x-5.9x-4.7=8.9(310)9x-1.4x+1.1=39.1(311)9x+2x-48=73(312)2x+50×2=278(313)4(0.4x-6.2)=44(314)1.4x+0.3x+3.9=92.3(315)11x-30=69(316)x-0.2=5.8(317)(14x+2)÷29=2(318)62x-3x+4=80.7(319)6x-3×3.8=5.4(320)37-x=23(321)6(0.2x+1.6)=27.6(322)4x-21×4=84(323)67x-26x-0.4=44.7(324)x+5.5=15.3(325)9.3-x=8.5(326)9.5+x=15.3(327)85x+51x-0.3=67.7(328)11.3+32x=30.5(329)2(8x-13)=150(330)2.2x-1x=37.2(331)24x÷8=9(332)120+22x=164(333)15x=18(334)(5.5x+6.6)÷22=1.3(335)11(0.3x+0.8)=15.4(336)x÷21=0.3(337)0.2x-2.1=12.1(338)x÷9=1.1(339)(16x+46)÷3=90(340)14.4÷x=3.6(341)2x-4×9=132(342)2x+1.3×10=27(343)11x+6×23=314(344)5.2x-3.3x-2.9=27.5(345)(5.5x+7.3)÷3=28.1(346)3.1x+4.8x=63.2(347)18x-10x-18=22(348)8x+16x+31=199(349)14+x=26(350)3(2x-34)=144(351)22x-30×2=94(352)17x+13x=60(353)5.2x+7.5x=127(354)18x-6x-33=63(355)2x-34=116(356)71x=142(357)6x+5x-24=196(358)12x-5x=14(359)10x+17x=189(360)2.8x-2.4x-2.1=10.3(361)(7x-39)÷16=5(362)17x+4.2=22.9(363)(4.8x-8.4)÷3=8.4(364)(4.8x-9.6)÷24=3(365)(5.8x-1.9)÷3=7.1(366)(3x+10)÷5=14(367)1.1x=16.5(368)x-6.7=2.3(369)0.5x=5.5(370)18x+4x+2=13(371)8.4÷x=1.2(372)2(1.2x+7.1)=28.6(373)1.9x-3.3×2=10.5(374)4.6-x=3.3(375)x÷29=4(376)4.5x-2.8x-1=10.9(377)17x=13.6(378)5x+18=53(379)8.2x+5.1x-4.8=128.2(380)11.4+7x=24(381)5(x+15)=140(382)2.3x-1.6=12.2(383)0.6x-0.2×6=12(384)8x÷32=0.3(385)46x-10x-3.5=57.7(386)1.5x-2.1×3=2.7(387)18x-14x+18=42(388)x÷3=0.2(389)13x+34=216(390)10x+4x-41=85(391)98-x=96(392)4x=8(393)45-3x=15(394)9.7-x=9.4(395)x+0.6=3(396)78-x=39(397)3.9+x=8.6(398)0.5x+4=20(399)16.6-12x=11.8(400)181+2x=377(401)14.7-2x=10.5(402)x+7=26(403)9x+16x=150(404)2.6x+0.4×38=33.4(405)2x=112(406)191+12x=299(407)0.5x+9x-2.4=73.6(408)(0.5x-2.7)÷7=0.4(409)(1.4x-9.4)÷37=0.2(410)20x+26=126(411)8.7x-2.7x-4.8=43.2(412)14x-2x=84(413)7.7x-5.1x+1.5=24.9(414)40x-17x-1.6=30.6(415)55+x=90(416)6x-4x+39=95(417)x+61=70(418)0.5x+4.4=16.9(419)8.2x-4.3=12.1(420)58+8x=194(421)x-7.4=1.8(422)7x+4×1.5=12.3(423)5.5x-3.4x=8.4(424)15x=6(425)3x=6.3(426)9x+3x+48=96(427)8.6-x=5.6(428)19.4-0.5x=6.9(429)34x+11×1.2=30.2(430)12(0.2x+1.5)=34.8(431)8.4-x=5(432)17x+4x+3=129(433)55+x=73(434)1.1x-0.8x=4.8(435)95÷x=5(436)2x-4×26=42(437)x-0.7=6.1(438)40+x=77(439)148-2x=134(440)132-5x=12(441)(16x-38)÷18=5(442)9.8+1.2x=13.4(443)5x-3.5=14.5(444)17x+58×3=344(445)18x+17x-6=99(446)13.2-6x=7.8(447)6x+4.3=15.7(448)4x÷7=16(449)x÷2=24(450)16x-18=62(451)x+3.5=9.7(452)8x-6x=46(453)2x÷28=0.5(454)16x-12x-6=30(455)16x-4×27=84(456)4(2x+13)=116(457)27x+22x-3.8=94.2(458)19x-12x+21=70(459)(12x+3)÷9=19(460)8.6x+9.3x-1=160.1(461)27x-21×0.4=5.1(462)x-0.5=6.3(463)15x-5x-34=26(464)22x-30×4=12(465)6.2-x=1.6(466)7.8+x=17.2(467)3(x-20)=84(468)93x-47x+2.4=11.6(469)(0.3x+0.4)÷8=0.2(470)13x+5x+30=66(471)5.3x=10.6(472)1.4x+5.8=14.2(473)x÷4=4.6(474)1.6x+1.7x+4.1=76.7(475)5(2x+27)=155(476)192-8x=80(477)(3x-12)÷3=25(478)11x+16x=270(479)18x-5x-8=70(480)x+61=89(481)4x-1.5=2.9(482)4.1+15x=7.1(483)0.5x-1=6(484)6.8x-4.8x+4.7=20.7(485)x÷18=2(486)9x+5.2=13.3(487)5.9x+8.7x-2.1=85.5(488)(6.7x+3.5)÷14=3.6(489)x+7.5=9.1(490)176÷x=11(491)1x-0.5x=24(492)5x+9x+7=63(493)26x+56=186(494)(0.9x+3.9)÷39=0.4(495)0.4x+0.7x=55(496)x+6.7=9.3(497)183-26x=27(498)x+95=140(499)2x-4.6=12.6(500)93x+60x+0.5=61.7(501)4.2÷x=2.1(502)4(x+20)=144(503)9(0.3x+0.6)=18.9(504)(8x-16)÷16=1(505)5x+53=198(506)19.7+18x=32.3(507)6.4x=19.2(508)4.7x-3.8x-0.6=12.9(509)0.5x+0.2x+3.1=17.8(510)59x-3x-0.6=72.2(511)4x-2x+22=54(512)4(7.2x-7)=29.6(513)15x-9x-31=35(514)18.2-0.2x=15.4(515)16(0.3x+0.2)=46.4(516)1.8+x=7.7(517)7x+23×2=67(518)x-12=51(519)4x+9x+42=315(520)28x-10x-2.3=53.5(521)19x+25x+0.6=119.4(522)99-x=74(523)13x-7x=18(524)3(0.8x-3.6)=18(525)22x-20x+1.7=4.1(526)11x-5x+17=125(527)26x+37×0.2=20.4(528)6x+46=118(529)11x+5x-3=99.4(530)7x+14×0.9=32.2(531)4.8x-0.6×4=16.8(532)x÷2=46(533)16.6-0.7x=1.2(534)5x+9x-33=205(535)25x-5.6=11.9(536)9x+2×4.5=12.6(537)x-5.7=3.7(538)198-24x=54(539)3.8x+0.8×18=25.8(540)(2x+2)÷4=9参考答案(1)x=22(2)x=9(3)x=2(4)x=23(5)x=2.3(6)x=9(7)x=0.7(8)x=6(9)x=21(10)x=18(11)x=40(12)x=1.8(13)x=1.1(14)x=18(15)x=7(16)x=10(17)x=22(18)x=11(19)x=28(20)x=21(21)x=1.6(22)x=40(23)x=2(24)x=35(25)x=61(26)x=15(27)x=7.2(28)x=3.9(29)x=11(30)x=7(31)x=15(32)x=9(33)x=19(34)x=4(35)x=18(36)x=1.2(37)x=5(38)x=1.2(39)x=2(40)x=12(41)x=10(42)x=0.5(43)x=9.9(44)x=9(45)x=18(46)x=1.1(47)x=30(48)x=2(49)x=3(50)x=44(51)x=1.2(52)x=0.4(53)x=0.5(54)x=21(55)x=2.6(56)x=3(57)x=8.6(58)x=168(59)x=7.9(60)x=4(61)x=16(62)x=24(63)x=9(64)x=5(65)x=0.7(66)x=4.4(67)x=28(68)x=22(69)x=4(70)x=2(71)x=11(72)x=2(73)x=27(74)x=1.2(75)x=2(76)x=65(77)x=1.7(78)x=2(79)x=42(80)x=1.7(81)x=12(82)x=61(83)x=99(84)x=48(85)x=8(86)x=34(87)x=8(88)x=15(89)x=26(90)x=0.2(91)x=13(92)x=4(93)x=12(94)x=34(95)x=0.5(96)x=0.9(97)x=3.4(98)x=24(99)x=5(100)x=0.5(101)x=34(102)x=3(103)x=9(104)x=4(105)x=0.3(106)x=3(107)x=7(108)x=9(109)x=69(110)x=78(111)x=2(112)x=85(113)x=1.6(114)x=2(115)x=58(116)x=9(117)x=19(118)x=5.1(119)x=81(120)x=13(121)x=7(122)x=33(123)x=11.4(124)x=18(125)x=16(126)x=0.6(127)x=9(128)x=13(129)x=4(130)x=0.3(131)x=10(132)x=6(133)x=5(134)x=0.9(135)x=9.3(136)x=12(137)x=32(138)x=8.5(139)x=6(140)x=13(141)x=9(142)x=18(143)x=89(144)x=9(145)x=198(146)x=4(147)x=0.8(148)x=34(149)x=2.5(150)x=5(151)x=98(152)x=18(153)x=9(154)x=3.9(155)x=15(156)x=7(157)x=13.2(158)x=49(159)x=2(160)x=11(161)x=13(162)x=0.9(163)x=52(164)x=16(165)x=6.6(166)x=17(167)x=6.6(168)x=8(169)x=1.7(170)x=2.2(171)x=8(172)x=15(173)x=14(174)x=19(175)x=3(176)x=40(177)x=60(178)x=80(179)x=1(180)x=96(181)x=5(182)x=5(183)x=7(184)x=2.6(185)x=34(186)x=8(187)x=0.8(188)x=6(189)x=0.2(190)x=1(191)x=18(192)x=11(193)x=62(194)x=3(195)x=0.4(196)x=38(197)x=1(198)x=7(199)x=4(200)x=8(201)x=14(202)x=2(203)x=12(204)x=6(205)x=1.6(206)x=28(207)x=36(208)x=7(209)x=9(210)x=3(211)x=0.6(212)x=2.9(213)x=2.8(214)x=6(215)x=3(216)x=24(217)x=4(218)x=2.8(219)x=12(220)x=24(221)x=86(222)x=1.4(223)x=12(224)x=2.5(225)x=2(226)x=17(227)x=3(228)x=14(229)x=11(230)x=5(231)x=18(232)x=24(233)x=12(234)x=1.3(235)x=1.3(236)x=1.6(237)x=93(238)x=0.3(239)x=4(240)x=12(241)x=14(242)x=4.7(243)x=29(244)x=11(245)x=0.3(246)x=3(247)x=0.4(248)x=1.3(249)x=42(250)x=32(251)x=7(252)x=35(253)x=28(254)x=1(255)x=46(256)x=36(257)x=9(258)x=12(259)x=18(260)x=0.6(261)x=4(262)x=2(263)x=8(264)x=3(265)x=90(266)x=3.8(267)x=15(268)x=2(269)x=22(270)x=20(271)x=39(272)x=12(273)x=29(274)x=0.2(275)x=5(276)x=3(277)x=0.7(278)x=0.3(279)x=17(280)x=5(281)x=4(282)x=6(283)x=31(284)x=2.4(285)x=39(286)x=8(287)x=5(288)x=2(289)x=38(290)x=42(291)x=34(292)x=19(293)x=1.8(294)x=0.2(295)x=57(296)x=5.7(297)x=14(298)x=4(299)x=10(300)x=15.4(301)x=2.7(302)x=7.7(303)x=1.1(304)x=1.4(305)x=1(306)x=83(307)x=3(308)x=2.4(309)x=4(310)x=5(311)x=11(312)x=89(313)x=43(314)x=52(315)x=9(316)x=6(317)x=4(318)x=1.3(319)x=2.8(320)x=14(321)x=15(322)x=42(323)x=1.1(324)x=9.8(325)x=0.8(326)x=5.8(327)x=0.5(328)x=0.6(329)x=11(330)x=31(331)x=3(332)x=2(333)x=1.2(334)x=4(335)x=2(336)x=6.3(337)x=71(338)x=9.9(339)x=14(340)x=4(341)x=84(342)x=7(343)x=16(344)x=16(345)x=14(346)x=8(347)x=5(348)x=7(349)x=12(350)x=41(351)x=7(352)x=2(353)x=10(354)x=8(355)x=75(356)x=2(357)x=20(358)x=2(359)x=7(360)x=31(361)x=17(362)x=1.1(363)x=7(364)x=17(365)x=4(366)x=20(367)x=15(368)x=9(369)x=11(370)x=0.5(371)x=7(372)x=6(373)x=9(374)x=1.3(375)x=116(376)x=7(377)x=0.8(378)x=7(379)x=10(380)x=1.8(381)x=13(382)x=6(383)x=22(384)x=1.2(385)x=1.7(386)x=6(387)x=6(388)x=0.6(389)x=14(390)x=9(391)x=2(392)x=2(393)x=10(394)