五年级数学(方程)习题及答案汇编

五年级数学(方程)习题及答案汇编(1)(3.1x-4.6)÷24=1.1(2)81x-4=12.2(3)3.8+1.8x=9.2(4)8x-1.6=9.6(5)1x-1.4×6=2.6(6)9x+12x=42(7)5x+39=159(8)2(x+11)=108(9)(4x-0.8)÷4=7.8(10)1.7x-1.2x-0.5=17.5(11)3x+78×2=303(12)11x÷22=4(13)16.5-22x=7.7(14)39x-19x-4.2=35.8(15)62x+3=21.6(16)x÷6=1.4(17)6.4-2.7x=1(18)18x-14x-16=12(19)11x-5x-4=56(20)x+3.1=6.1(21)21x-46=101(22)5.2x-0.6x-2.1=85.3(23)37x+11×1.3=29.1(24)3x-2×1.6=7.6(25)3x-6×0.3=10.5(26)5(0.6x+2.5)=33.5(27)x÷15=7(28)x+37=127(29)2.1x=12.6(30)30x÷4=1.5(31)x-1.9=7(32)x-1.9=7.2(33)x÷18=0.9(34)19x-4x-33=42(35)x+6=9.9(36)2.9+17x=14.8(37)x÷26=0.6(38)6.4+x=7.6(39)0.8x-3.3×3=10.1(40)189-10x=159(41)x-22=73(42)12x-6x+4.6=40.6(43)x-3=3.6(44)2(x+17)=108(45)1x+2.2x+3.3=96.1(46)15x+4x=133(47)1.4x+1.7×11=36.9(48)x+83=156(49)1.7x+0.5×22=19.5(50)25x+1.2=6.2(51)7x+5.4x-4.7=119.3(52)3x+14×10=296(53)1.6x+2.9=20.5(54)2(3x+12)=120(55)5.4÷x=1.8(56)74+x=163(57)x+47=112(58)14x-3x+9=53(59)41x-12x+4.6=27.8(60)94x+4.2=23(61)2x-7×25=17(62)7.4x+8.2x-0.5=30.7(63)x÷2=18(64)72-x=30(65)5.8+x=12.1(66)16x-2×3.4=9.2(67)96-x=90(68)8x-4×1.3=10.8(69)16x÷88=2(70)3.7x+6.7x=20.8(71)x-3.1=1(72)38+x=130(73)0.2x=1(74)x÷21=0.2(75)1.4x=2.8(76)18x-11x+0.7=23.8(77)2.4+x=11.2(78)72-x=69(79)5(16x+6)=190(80)x+1.8=11.3(81)0.6x÷4=4.5(82)18x+2=20(83)4.8x-0.5x+1.7=18.9(84)0.8+x=8.9(85)(8x-19)÷21=9(86)23x=69(87)10x÷12=15(88)x+54=85(89)x-14=52(90)2(1.5x+7.5)=30(91)196÷x=49(92)3.5x-2.5x=16(93)x+1.5=2.7(94)9x-5x=32(95)49x÷14=0.7(96)180-13x=115(97)175+10x=255(98)6x-2x+5=109(99)4(1.7x-9.8)=28.8(100)4.7+x=12.8(101)16x-7x-7=20(102)(4.7x+5.2)÷6=8.7(103)56x÷84=0.2(104)x+42=68(105)83x-54x-1.7=9.9(106)0.2x+3=16.8(107)88-x=12(108)(8x+34)÷21=10(109)8x-2x=144(110)7x=175(111)13x÷3=26(112)10x+7×23=211(113)3x+52=241(114)(9x+3)÷49=3(115)28x-14=126(116)x-4=86(117)14.8-54x=4(118)15x-9x+0.7=13.3(119)x+87=93(120)3x+2x+13=308(121)7.6x+1.8x=112.8(122)x÷4=2(123)0.4x+0.6×17=15.4(124)6.7-x=2.1(125)30÷x=3(126)24(0.7x-4.5)=26.4(127)16.3+1.3x=35.8(128)21x+2.9=13.4(129)6.1x+4.8x=119.9(130)27x+62x+2=28.7(131)3.5x+0.5x-2.1=53.9(132)13x-5x-30=34(133)4.6x-3.8x+2.3=9.5(134)77x-35x-0.2=8.2(135)x+1.2=5(136)29x+3×0.4=18.6(137)2x-27=11(138)5.1x-2.9x=41.8(139)0.4x+1.4×9=29.8(140)6.4+4x=14.4(141)12.7-3.3x=2.8(142)5.5x=11(143)191-2x=109(144)3x=11.1(145)(3.8x+7)÷2=28.2(146)5.2x+0.5x+4.7=27.5(147)6.7-x=5.7(148)72÷x=12(149)x+6=8.5(150)0.2x-1.6=10.8(151)17x-38=30(152)6.4x-4.2x=28.6(153)7.4÷x=0.2(154)8x-2×0.7=6.6(155)x-20=27(156)6x-1.7=10.3(157)71x-52x+0.5=11.9(158)x÷21=0.8(159)45x+37=172(160)2(1.5x+2.7)=38.4(161)5x=2.5(162)15x-7×6=153(163)3x=186(164)7.5÷x=0.5(165)7.5÷x=0.3(166)80-x=61(167)32x=16(168)x-2.1=2.3(169)7.2x-3.9x=33(170)20x-2.7=15.3(171)70+x=159(172)16.1+2x=20.9(173)0.8x-1.7×5=1.9(174)13.9-3x=2.5(175)6x-2×17=62(176)5x+8x+42=159(177)1.3x-0.6x=44.8(178)(16x-44)÷4=49(179)10.5+0.2x=20.1(180)8.8-x=8(181)9(0.2x+0.5)=45.9(182)20x+6×0.9=25.4(183)5.9x-3.1=8.7(184)2(0.5x+6.2)=47.4(185)4.9x-1.3x+1.6=30.4(186)16x-8x-28=12(187)1.4x+0.4x+3.5=77.3(188)3x+2x=240(189)13x-10x+36=69(190)(0.3x+0.6)÷7=0.3(191)198÷x=18(192)105+3x=138(193)55x-5x-4.4=5.6(194)62÷x=2(195)4+x=27(196)97x+57x-3=89.4(197)(8x-12)÷4=39(198)14÷x=2(199)2x+35=173(200)4x÷12=1.1(201)4x+8.7x-0.8=75.4(202)66x=198(203)3x+8x=132(204)2(18x-46)=52(205)7.8x+8.1x+2.9=130.1(206)x-53=26(207)75x+4.8=19.8(208)37x+36x-1.6=115.2(209)2.3x+0.4×42=28.3(210)(10x+36)÷8=7(211)8.7x-2.9x+4=27.2(212)15x-26×4=46(213)16+2x=154(214)14x-51=19(215)2x÷7=20(216)3x=15(217)3x+2×71=337(218)5.6x+4=15.2(219)(12x+36)÷7=36(220)11x=154(221)7x-4x+2.1=13.2(222)2x+15x+28=79(223)(3.8x-9.6)÷23=1.4(224)198+11x=363(225)3x-2.2=9.2(226)2x+11×1.7=20.7(227)x÷18=0.7(228)76x+83x+2.1=33.9(229)6x-2.2x+3.7=26.5(230)5x+43=143(231)1.5x-3.4=7.1(232)15(6x-48)=180(233)3.7x+1.9x=95.2(234)(3.7x-2)÷17=3.8(235)6x-3x-30=21(236)4.5x÷9=1.5(237)0.5x÷30=0.6(238)2x+3x=70(239)0.9x+2=21.8(240)2x+5.8=16(241)87+x=172(242)1.9+x=10.6(243)26x÷4=39(244)5(6x+5)=85(245)x-12=50(246)24x+5×2.1=17.7(247)2x-2.3=5.5(248)27x+33x-2.8=129.2(249)32x-15=81(250)4(3x-20)=136(251)8.4-1.2x=1.2(252)13.9-1.9x=2.5(253)2(3x-19)=34(254)14x-7x+38=66(255)5.2x+7.3x=62.5(256)76x-14x+1.2=57(257)x+65=74(258)35-x=16(259)28+8x=52(260)(4x-46)÷5=10(261)15.6-10x=1.6(262)95-x=85(263)25x-38=12(264)5(2x+10)=100(265)4x+14x-5=175(266)108-11x=86(267)78x-19x-0.2=23.4(268)x-31=42(269)10(4x-12)=200(270)5x+10x+25=205(271)36x÷6=30(272)6x-4x+22=60(273)7.3-4x=5.3(274)10x+11x-9=306(275)99x+18x-0.9=34.2(276)x÷10=3(277)x÷3=2.6(278)10x+16x-2=76(279)9.5x+4.2x-1.8=121.5(280)2.3+6.1x=20.6(281)40x=16(282)(5x+42)÷21=7(283)3x-2.3×3=8.1(284)9.8x÷28=0.7(285)21x=16.8(286)9.4x-3x-1.4=37(287)x-0.5=5.1(288)6.4-x=3.9(289)7.4x=14.8(290)18x+3.4=14.2(291)2(x+34)=148(292)13x+18x-37=118(293)7.5+0.2x=19.3(294)4(1.7x-7)=12.8(295)(8.7x+4.8)÷33=1.2(296)9(0.5x-9)=36(297)1.2x+0.2x+0.9=66.7(298)5.5x÷11=1(299)(2x-11)÷3=5(300)0.6x÷9=0.2(301)50+x=68(302)2x+13×14=302(303)4.7x+3.1=12.5(304)48x+48=240(305)(1.5x+2)÷5=6.1(306)39x+7×2.1=34.2(307)8.4+58x=20(308)1.1x-2.3=17.5(309)0.4÷x=0.2(310)19x+66x+1=43.5(311)2.7x+5.4=21.6(312)(6x-36)÷21=4(313)x+0.2=9.3(314)10.6-0.6x=3.4(315)16x÷2=4(316)0.9x-0.2×29=10.4(317)x+70=158(318)13.5÷x=1.5(319)0.6x-0.2×30=6.6(320)195-9x=51(321)80x-25x-3.6=40.4(322)0.4x-5.9=6.1(323)13.1+1.2x=21.5(324)13.6-6x=7.6(325)9x+55=127(326)78x+22x+2.7=22.7(327)1.8x+4.1x=64.9(328)4.2x+0.6x+0.8=39.2(329)x-2.1=2.7(330)117-11x=51(331)(11x+13)÷46=1(332)x+5=12.8(333)2.5+2x=8.5(334)2(x-7.2)=43.6(335)(12x-6)÷18=9(336)(2.1x+5.1)÷15=0.9(337)x+0.3=9.4(338)19x-10x=18(339)11x+6x=136(340)9.2-12x=6.8(341)5(0.3x-5.2)=7(342)5.2x+6.4x=174(343)32x+9x+2.1=22.6(344)15x+4x+11=68(345)6(x-23)=156(346)11x÷44=0.3(347)x-61=34(348)2.4x-1.4x+1=26(349)9.8x-0.4x-2=45(350)9x+7×1.5=27.6(351)65-x=57(352)83x+56x-1.4=68.1(353)16.8÷x=0.4(354)15x-1.7=14.8(355)2(0.5x+3.1)=27.2(356)15x-11x+46=98(357)25x+43=143(358)16x-7x=72(359)61x-18x-1.6=15.6(360)2.7-x=2.5(361)0.2x+2=4.8(362)3(1.9x+2.8)=19.8(363)0.9x-0.7x+1=16.8(364)(2.9x+8.2)÷25=2.3(365)8x+12x+2.6=20.6(366)9.6-x=4.3(367)27+x=105(368)45x÷27=5(369)15x+10x-22=53(370)28÷x=7(371)68x-3.3=10.3(372)41x+32×0.5=24.2(373)9.2+13x=15.7(374)73x-52x-4.9=20.3(375)(4.8x+8)÷20=4(376)1x=10(377)6x-48×2=90(378)16.6-4x=3.8(379)12x+36×5=252(380)2x-2×58=34(381)9x+15x+19=163(382)2x-10×4=136(383)1.2+6x=13.8(384)x÷32=6(385)4x÷32=3(386)17x+6x-28=179(387)27x+4×39=210(388)2(3x+24)=96(389)24x-5×1.9=9.7(390)9.6x-5.7x-3.2=35.8(391)4.5x÷30=0.3(392)3x=12.3(393)2.8x+1.2x-2.6=37.4(394)8x=12(395)8.3x=16.6(396)98+x=197(397)9.3-x=8.1(398)2x=76(399)5(0.5x-8.8)=33.5(400)5.4x-2.3x+4.2=38.3(401)120-8x=40(402)79-x=72(403)67+2x=73(404)16x-14x=12(405)0.3x-3.4=2.6(406)0.9x+1x-0.9=90.3(407)6.1x-5.4x=4.2(408)58x+83x+3.1=158.2(409)(8.3x-3.4)÷9=7(410)9.3x-8.3x-0.2=9.8(411)(8x+5)÷33=5(412)7x+4x-43=45(413)(18x-10)÷16=5(414)6(x+10)=126(415)4.8-x=2.8(416)4(0.7x-3.5)=30.8(417)2.1x+3.4x=110(418)1.7x+3.1x-2.5=26.3(419)76x+35x+4.3=82(420)10x+11x-11=262(421)(6x-8.8)÷32=0.1(422)8x+9×0.8=20(423)7.4x-2.8x-3.3=15.1(424)1.2x=15.6(425)2(2x-10)=44(426)56x÷12=1.4(427)1x+9.6x+3=87.8(428)19.5-0.3x=17.1(429)1.8+2x=11.8(430)3(1.4x+0.9)=23.7(431)18.6-2x=12.6(432)7x-39=101(433)6x+13x=228(434)7.8+x=16.6(435)x÷29=0.3(436)0.3x÷18=0.5(437)8x-4x=80(438)6x+2×58=134(439)3.6x-1.4×4=12.4(440)5x+9x+27=55(441)x÷8=13(442)3x=36(443)70x-10x+0.5=54.5(444)192+4x=384(445)12x+3x+28=133(446)6x+7x=299(447)9x-5x=88(448)0.7x÷14=1(449)11(0.2x+3.3)=47.3(450)0.7x-1.5×2=8.2(451)7x-3×0.9=7.1(452)124-33x=25(453)67x+38x+1.2=22.2(454)8.6x+3.7x+3.7=139(455)154+2x=160(456)7x-8×3=46(457)5.8x-3.5x-4=12.1(458)0.9x+0.9×3=6.3(459)15x÷18=1(460)0.2x+2.5×6=21.2(461)148÷x=4(462)9x-6x=45(463)x÷5=3.8(464)5x-3x+10=24(465)3(3x-35)=57(466)11x-17=115(467)(18x-39)÷3=23(468)19-0.2x=1(469)1.5x+0.4×11=20.9(470)25x-3.6=3.9(471)(4.1x-2.7)÷4=6.5(472)5x-0.3x+4.2=37.1(473)0.3x-0.7×9=3(474)2.1÷x=0.7(475)6.9+11x=26.7(476)82x-77x+1.5=5.5(477)90x+75x-4.6=110.9(478)17x+15x+19=275(479)11x+84x-4.8=52.2(480)106+2x=306(481)91x+76x-2.2=47.9(482)0.2x+2.9×6=23.6(483)14x+16x=270(484)x+39=136(485)1.1+x=10.7(486)x-2.8=4(487)(1.3x-6.7)÷38=0.2(488)2.4x-1.4x=21(489)x-2.4=5.8(490)45+x=59(491)5x-2x+29=80(492)90x+92x-3=179(493)x÷35=2(494)x-37=15(495)0.4x+2.5=20.1(496)20x÷24=0.5(497)15-4.6x=1.2(498)8-x=7.4(499)(16x+42)÷47=6(500)1.2x-1x-2.4=12.4(501)0.8x+0.5x+1.8=40.8(502)3x+39×5=360(503)4.5x-5.1=8.4(504)(5.9x+6.4)÷3=27.7(505)9.4x-6.7x=27(506)x÷14=4(507)5x-3x=50(508)8x+3.6=13.2(509)13.3-8x=6.1(510)2x+13x-22=128(511)3.2x-1.2x=8(512)0.3x-2.2=3.5(513)5x-2x-34=20(514)0.2x-3.7=15.9(515)17x=170(516)49-6x=31(517)(6.2x-4.4)÷11=5.8(518)76x-20x-1.2=15.6(519)19+9x=37.9(520)14x-4x-26=74(521)x÷3=44(522)10x-8×13=86(523)7x+57=225(524)4x=13.2(525)5x-5×2.4=7(526)0.8x+1.5=16.7(527)8x-4x+37=57(528)6.4+0.4x=17.6(529)171÷x=19(530)5.8+x=10.3(531)87x=174(532)140÷x=4(533)29x-11×0.5=3.2(534)(x+23)÷5=6(535)4.5+9x=22.5(536)1.6x+3.8x=59.4(537)6(3.8x-8.3)=41.4(538)1.7x=15.3(539)9(2x-20)=144(540)7.9x+9.3x-3.2=151.6参考答案(1)x=10(2)x=0.2(3)x=3(4)x=1.4(5)x=11(6)x=2(7)x=24(8)x=43(9)x=8(10)x=36(11)x=49(12)x=8(13)x=0.4(14)x=2(15)x=0.3(16)x=8.4(17)x=2(18)x=7(19)x=10(20)x=3(21)x=7(22)x=19(23)x=0.4(24)x=3.6(25)x=4.1(26)x=7(27)x=105(28)x=90(29)x=6(30)x=0.2(31)x=8.9(32)x=9.1(33)x=16.2(34)x=5(35)x=3.9(36)x=0.7(37)x=15.6(38)x=1.2(39)x=25(40)x=3(41)x=95(42)x=6(43)x=6.6(44)x=37(45)x=29(46)x=7(47)x=13(48)x=73(49)x=5(50)x=0.2(51)x=10(52)x=52(53)x=11(54)x=16(55)x=3(56)x=89(57)x=65(58)x=4(59)x=0.8(60)x=0.2(61)x=96(62)x=2(63)x=36(64)x=42(65)x=6.3(66)x=1(67)x=6(68)x=2(69)x=11(70)x=2(71)x=4.1(72)x=92(73)x=5(74)x=4.2(75)x=2(76)x=3.3(77)x=8.8(78)x=3(79)x=2(80)x=9.5(81)x=30(82)x=1(83)x=4(84)x=8.1(85)x=26(86)x=3(87)x=18(88)x=31(89)x=66(90)x=5(91)x=4(92)x=16(93)x=1.2(94)x=8(95)x=0.2(96)x=5(97)x=8(98)x=26(99)x=10(100)x=8.1(101)x=3(102)x=10(103)x=0.3(104)x=26(105)x=0.4(106)x=69(107)x=76(108)x=22(109)x=24(110)x=25(111)x=6(112)x=5(113)x=63(114)x=16(115)x=5(116)x=90(117)x=0.2(118)x=2.1(119)x=6(120)x=59(121)x=12(122)x=8(123)x=13(124)x=4.6(125)x=10(126)x=8(127)x=15(128)x=0.5(129)x=11(130)x=0.3(131)x=14(132)x=8(133)x=9(134)x=0.2(135)x=3.8(136)x=0.6(137)x=19(138)x=19(139)x=43(140)x=2(141)x=3(142)x=2(143)x=41(144)x=3.7(145)x=13(146)x=4(147)x=1(148)x=6(149)x=2.5(150)x=62(151)x=4(152)x=13(153)x=37(154)x=1(155)x=47(156)x=2(157)x=0.6(158)x=16.8(159)x=3(160)x=11(161)x=0.5(162)x=13(163)x=62(164)x=15(165)x=25(166)x=19(167)x=0.5(168)x=4.4(169)x=10(170)x=0.9(171)x=89(172)x=2.4(173)x=13(174)x=3.8(175)x=16(176)x=9(177)x=64(178)x=15(179)x=48(180)x=0.8(181)x=23(182)x=1(183)x=2(184)x=35(185)x=8(186)x=5(187)x=41(188)x=48(189)x=11(190)x=5(191)x=11(192)x=11(193)x=0.2(194)x=31(195)x=23(196)x=0.6(197)x=21(198)x=7(199)x=69(200)x=3.3(201)x=6(202)x=3(203)x=12(204)x=4(205)x=8(206)x=79(207)x=0.2(208)x=1.6(209)x=5(210)x=2(211)x=4(212)x=10(213)x=69(214)x=5(215)x=70(216)x=5(217)x=65(218)x=2(219)x=18(220)x=14(221)x=3.7(222)x=3(223)x=11(224)x=15(225)x=3.8(226)x=1(227)x=12.6(228)x=0.2(229)x=6(230)x=20(231)x=7(232)x=10(233)x=17(234)x=18(235)x=17(236)x=3(237)x=36(238)x=14(239)x=22(240)x=5.1(241)x=85(242)x=8.7(243)x=6(244)x=2(245)x=62(246)x=0.3(247)x=3.9(248)x=2.2(249)x=3(250)x=18(251)x=6(252)x=6(253)x=12(254)x=4(255)x=5(256)x=0.9(257)x=9(258)x=19(259)x=3(260)x=24(261)x=1.4(262)x=10(263)x=2(264)x=5(265)x=10(266)x=2(267)x=0.4(268)x=73(269)x=8(270)x=12(271)x=5(272)x=19(273)x=0.5(274)x=15(275)x=0.3(276)x=30(277)x=7.8(278)x=3(279)x=9(280)x=3(281)x=0.4(282)x=21(283)x=5(284)x=2(285)x=0.8(286)x=6(287)x=5.6(288)x=2.5(289)x=2(290)x=0.6(291)x=40(292)x=5(293)x=59(294)x=6(295)x=4(296)x=26(297)x=47(298)x=2(299)x=13(300)x=3(301)x=18(302)x=60(303)x=2(304)x=4(305)x=19(306)x=0.5(307)x=0.2(308)x=18(309)x=2(310)x=0.5(311)x=6(312)x=20(313)x=9.1(314)x=12(315)x=0.5(316)x=18(317)x=88(318)x=9(319)x=21(320)x=16(321)x=0.8(322)x=30(323)x=7(324)x=1(325)x=8(326)x=0.2(327)x=11(328)x=8(329)x=4.8(330)x=6(331)x=3(332)x=7.8(333)x=3(334)x=29(335)x=14(336)x=4(337)x=9.1(338)x=2(339)x=8(340)x=0.2(341)x=22(342)x=15(343)x=0.5(344)x=3(345)x=49(346)x=1.2(347)x=95(348)x=25(349)x=5(350)x=1.9(351)x=8(352)x=0.5(353)x=42(354)x=1.1(355)x=21(356)x=13(357)x=4(358)x=8(359)x=0.4(360)x=0.2(361)x=14(362)x=2(363)x=79(364)x=17(365)x=0.9(366)x=5.3(367)x=78(368)x=3(369)x=3(370)x=4(371)x=0.2(372)x=0.2(373)x=0.5(374)x=1.2(375)x=15(376)x=10(377)x=31(378)x=3.2(379)x=6(380)x=75(381)x=6(382)x=88(383)x=2.1(384)x=192(385)x=24(386)x=9(387)x=2(388)x=8(389)x=0.8(390)x=10(391)x=2(392)x=4.1(393)x=10(394