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)x+89=134(2)0.2x=10.4(3)2+x=9.1(4)25x-1.8=18.2(5)4.3x-1.6x+4.1=52.7(6)(16x-44)÷2=106(7)11x-47×3=13(8)x-7.7=2.2(9)x÷4=27(10)3x=99(11)5x+2x+7=105(12)16x+19×1=22.2(13)169-78x=13(14)2x+52=84(15)9.9x+1.8x-3.4=20(16)89x+34=212(17)14x+9x-12=264(18)10.1+2x=17.3(19)7(0.3x-5.6)=9.1(20)13.8-0.3x=12(21)6x+14x=100(22)12(2x+3)=180(23)3(1.3x+3.8)=23.1(24)14x÷28=4(25)11x-6x+26=86(26)4(3x-20)=64(27)15(0.5x-6.2)=34.5(28)(2.7x-4)÷13=2.6(29)15x-5x=120(30)0.8x-5.6=11.2(31)(6x-34)÷28=2(32)(18x-10)÷20=4(33)0.8x÷42=0.4(34)17-73x=2.4(35)18x+10x+29=141(36)36÷x=18(37)5x-1.1=17.9(38)(10x-22)÷7=14(39)12.4-2.2x=1.4(40)x+8.5=16.1(41)43x-3×2.1=10.9(42)x÷19=0.5(43)9.2-x=4.8(44)12x+18x=210(45)14x+7x-6=57(46)26x+18×0.7=25.6(47)0.6x÷21=0.4(48)1.3x+1.2x-4.3=140.7(49)16x-6x-23=87(50)x+20=64(51)x-31=16(52)2x-12=148(53)x-42=26(54)155-3x=92(55)14(8x-38)=140(56)9(2.6x-9.3)=33.3(57)6x+7×27=297(58)3x-2x-2.4=7.6(59)40x-31x-1.5=10.2(60)(19x+12)÷4=41(61)38x-44=146(62)(6.8x-0.4)÷10=2(63)9-x=2.4(64)18.3-0.4x=12.3(65)4(6.9x-1.4)=49.6(66)1.5x-0.6x=24.3(67)2.2x=19.8(68)29x-3.2=8.4(69)x+0.8=2.6(70)2x÷7=16(71)0.3x-3=5.1(72)78x-59x+0.6=12(73)78÷x=6(74)93x+3x+0.3=77.1(75)1.1x+4.4=23.1(76)7x-1.6x-2=30.4(77)83x-33x-2.9=47.1(78)7x-3x=72(79)3.3x+1.2×2=9(80)12x-4x=120(81)0.3x-3.4=6.2(82)17(0.2x-5.4)=44.2(83)3(7x-31)=33(84)x+7.6=11.9(85)5x=19.5(86)x-4=20(87)(2.6x+5.3)÷11=1.9(88)(3x+21)÷4=24(89)17.3-0.6x=16.1(90)11x+3=17.3(91)58+x=111(92)x÷51=0.3(93)(4.9x+2.3)÷16=2.9(94)3.4-x=1.7(95)12.4-4x=3.2(96)19.2-20x=11.2(97)26x+38=220(98)x-10=88(99)94x+13x+2.2=23.6(100)4.1x-3.7x-4.9=2.7(101)x÷3=2.7(102)7.2-x=3.8(103)6x-16=20(104)18.2+0.7x=25.9(105)13x+6×2.9=25.2(106)60÷x=3(107)x+8.5=10.2(108)12.7-1.8x=5.5(109)18.7÷x=1.7(110)95+3x=209(111)88x+28x+0.2=116.2(112)45x-41=94(113)2.5x-3.8=16.2(114)3.5+x=6.2(115)5x+2x=140(116)x-32=48(117)18-2x=4.2(118)18.7-2x=14.3(119)12+72x=26.4(120)0.2x+1.4=2.8(121)x-3.6=5.2(122)9.6x-3.6x=18(123)11x-9x-10=14(124)6.5-x=5.2(125)11.6+2.6x=29.8(126)3(8x+15)=93(127)x÷11=1.1(128)17.4+5x=28.4(129)x÷4=34(130)10x÷6=20(131)2.3x-0.2×25=6.5(132)8.4x+4.9x+4.5=124.2(133)90x÷36=5(134)23+x=30(135)5x+19x-21=147(136)4.1x+3x+3=130.8(137)9x-6x-46=14(138)19x-15×0.7=2.8(139)4.2x÷21=0.4(140)4.4x-4x+0.2=4.2(141)3x+4.5=13.5(142)(0.9x-8.7)÷5=0.6(143)0.7x+4.9=18.9(144)14.6-27x=9.2(145)5.1+0.8x=21.1(146)x-33=27(147)3x-3.8=7.9(148)2(3x+13)=182(149)173-54x=11(150)2x-9×8=116(151)x-23=36(152)16.9+3.6x=31.3(153)15.9-1.1x=6(154)7x-38×0.3=1.2(155)12x+9x-36=69(156)3.5x+2.4x-1.3=122.6(157)1.1x-4.7=11.8(158)3x+5.4=12.3(159)42x+15x-4.4=109.6(160)5x-2x+24=78(161)12+10x=212(162)x÷66=3(163)8.8x-7.8x-3.3=4.7(164)14.4÷x=0.9(165)36x-33x+0.3=3.6(166)48x-17x+1.3=13.7(167)1.4x+0.8×12=15.2(168)x÷7=0.9(169)2x÷29=0.4(170)1.9x+7.3x+0.6=19(171)12x-6x+20=38(172)4(7x-19)=120(173)7x+23×6=208(174)(6x-30)÷8=15(175)x+2.7=11.2(176)2x+22x-4.3=14.9(177)4(3.2x-9.9)=37.2(178)5x-4.5=4(179)10(4.1x-3.5)=47(180)5x÷14=10(181)5.2x+1.3=16.9(182)3.8÷x=0.2(183)2x-46×3=58(184)0.8x-2.9=7.5(185)71+x=139(186)17+x=106(187)89+2x=101(188)(8x+32)÷4=62(189)17x+2×70=242(190)2(x+40)=176(191)22x+4×0.7=18.2(192)2x-4.7=9.3(193)1.1x+2.7×4=15.2(194)115-7x=66(195)126÷x=42(196)14x+2×10=174(197)9.8x-0.8x+3.4=93.4(198)13x÷39=0.2(199)9.1x-1.5x+1=77(200)37x-47=27(201)2x=72(202)0.6x-0.4×19=9.8(203)6x=144(204)39x-8x+1.8=42.1(205)157+5x=172(206)7.9x+4.8x-3.9=85(207)27x÷18=0.3(208)6x÷10=1.2(209)6x-2x-16=44(210)(2.9x-3.2)÷7=7(211)2x÷5=28(212)35x-11x+2.7=21.9(213)85-x=57(214)5.4x-1.5x=62.4(215)2x+0.2x=22(216)17x-5x-20=28(217)1.5x-1.2x+0.9=9(218)x+54=80(219)2x+3x-12=13(220)15x-11x-21=27(221)0.4x+0.9x-2.2=105.7(222)x+1.2=7.3(223)31x+20x-0.5=152.5(224)6.6+x=12.5(225)14x-6x=40(226)10x-33=127(227)4.3x+5.6x+1.1=110(228)0.2x=17.8(229)59x-46x-3.1=16.4(230)(9.6x-4.2)÷30=2.1(231)6.2x+2x+3.2=68.8(232)1.8x-1.1x-4.1=23.9(233)6x-2x+18=134(234)49x+50=246(235)x-1.3=6.9(236)3(1.5x+6)=31.5(237)x÷10=18(238)2(x+49)=192(239)2(1.4x+5.4)=19.2(240)7.1x-0.6x=13(241)60x+10x-0.6=34.4(242)5.1x-1x+4.8=17.1(243)36x=10.8(244)5.8-x=4.3(245)5(0.4x+5.7)=42.5(246)x-4.6=4.6(247)x+7=16.2(248)8x+5x+27=157(249)43x-41x-1.4=1.8(250)0.7x+1.3x-1.1=60.9(251)41-x=10(252)3.1+x=8.1(253)183-5x=138(254)(1.9x-4.1)÷35=0.1(255)3.1x+4.1×3=27.8(256)x+27=86(257)91x-76x-1.2=9.3(258)x-1.4=3.6(259)3÷x=1.5(260)4.9x-1.3x-1.1=6.1(261)2.4x÷2=4.8(262)2.1x+3.1x+4.2=19.8(263)0.9x+3.1x-1.1=18.9(264)91+41x=173(265)2(8x+37)=154(266)9÷x=0.9(267)13x-2×35=47(268)8.9+x=14.6(269)(4x+5)÷22=1.5(270)8x÷2=20(271)14x-10x+1.3=24.5(272)x+44=143(273)56x+31=199(274)(4.8x+3.6)÷11=6(275)7x=5.6(276)5x+48=98(277)1.2x÷4=3(278)(1.1x+4.8)÷4=3.4(279)76-x=14(280)3x+5.6=18.8(281)7x+13x+29=309(282)2x+3.4=10.4(283)54x+21x-2.2=42.8(284)8.7÷x=0.3(285)x÷35=3(286)(10x+34)÷3=58(287)(1.7x-9.4)÷24=0.6(288)19.2÷x=0.4(289)(0.7x+5.2)÷5=3(290)18x+20=74(291)165-3x=48(292)78-2x=38(293)5x-3×28=56(294)17x-2×2.3=7.3(295)0.8x+3.2×5=18.4(296)(17x-4)÷10=3(297)9x-4×1.9=7.7(298)81-x=63(299)2(5x+2)=174(300)4.8x-2.2x=26(301)23x-3×40=18(302)(6x+39)÷5=27(303)15x+4x-44=51(304)1.6x-0.2×23=3.4(305)13x+96x+0.3=76.6(306)80x-40x+3.2=31.2(307)2.1x-0.2×40=8.8(308)7.3x=14.6(309)2.5x-2.2x=6.9(310)9x+4x=195(311)5x+2x+39=172(312)x÷12=3(313)2x÷6=14(314)0.6x-0.2×35=5.6(315)6(0.3x+2.2)=25.8(316)20x=14(317)2x-5×4=158(318)6.5x+8.7x=45.6(319)16x-4x+44=68(320)x÷5=3.4(321)x-8.1=1.3(322)9x-6×0.8=11.4(323)10.6+1.5x=16.6(324)10.8-4x=7.6(325)3x=156(326)(0.2x+1.4)÷24=0.2(327)x+96=150(328)x÷4=2.3(329)5x-2x+10=91(330)3.1x-0.3x=89.6(331)7.6-x=1.4(332)3.3x-2.4×7=3(333)12(3.3x-7.2)=32.4(334)154-9x=55(335)(12x-12)÷6=8(336)2(4x+25)=74(337)3+x=17(338)8.4+28x=16.8(339)5(0.5x+2.3)=29(340)99x-70x-3.6=25.4(341)7x+3x=230(342)8(5x-41)=192(343)2.6+5x=15.6(344)3(5x-33)=66(345)11.2÷x=0.2(346)0.3x+0.2×12=7.5(347)46x-6×1.5=4.8(348)x-17=28(349)1.3x+1.2=16.8(350)6.8x-3.2x-2.4=26.4(351)1.6x+0.9x=52.5(352)11x+2x+47=151(353)24x+4.8=14.4(354)3.5x+5.6x=81.9(355)8x+3.4=9(356)0.2x+2=3.4(357)23x+21x+3.1=130.7(358)x+30=107(359)(10x+45)÷5=35(360)4.4x=17.6(361)19x-16x+43=64(362)3(x+25)=183(363)6.8x-2.4x+0.5=48.9(364)3(0.9x+9.7)=42.6(365)105÷x=5(366)5(0.4x+6.5)=44.5(367)(1.4x+1.2)÷8=1.2(368)0.8x+4.1×4=26.8(369)8x÷2=1.6(370)99+10x=299(371)6x+9x-2.2=137.3(372)6x+5.1=24.9(373)12x-5x-38=39(374)3(0.5x+8.6)=28.8(375)2x-1=10.4(376)13x+3×1.1=18.9(377)(1.1x-2.1)÷2=5(378)7(3x-10)=140(379)148+10x=198(380)(18x-38)÷4=22(381)10x+11x+24=318(382)16.9-3.9x=1.3(383)10x-4x=12(384)11x-8x=36(385)94x-28x-2.2=11(386)4x=3.2(387)12x+6x-5=247(388)2x=18(389)2x+1.2=16.2(390)0.2x-2.6=6.4(391)6x=162(392)x÷49=2(393)0.7x+2.2x-1.9=41.6(394)6x-14=166(395)50x-2.1=7.9(396)8.8÷x=2.2(397)3x+43=133(398)15.1+55x=26.1(399)6.4+x=16(400)2.5x-4=11(401)11.8+3.1x=21.1(402)3x+5×8=118(403)8x+10x=270(404)0.8x-1.6×6=2.4(405)41x+79x+0.9=84.9(406)10x+9x=57(407)11(0.3x-0.9)=13.2(408)66x÷99=0.2(409)5x+9x=98(410)66-x=11(411)(2x+30)÷4=10(412)73x-48x+2.9=15.4(413)188÷x=2(414)7.7+62x=20.1(415)0.7x=7(416)31x+19x+4=74(417)48x÷6=16(418)0.2x÷13=1.2(419)2.6+x=12.2(420)44x-23x-4.4=16.6(421)2x+17x-17=192(422)31x+3×4=24.4(423)130÷x=13(424)8.4-x=3.1(425)3x=24(426)3x÷11=0.9(427)7.8+40x=27.8(428)5.8-x=5.2(429)2.8x=11.2(430)64x÷96=0.2(431)3x=18(432)14x-10×0.2=5(433)34÷x=17(434)(2.4x+3.6)÷9=5.2(435)54x+38x+4.9=32.5(436)12x+3×62=342(437)14.8-8x=3.6(438)4x=32(439)0.5x-2.2×4=5.2(440)64+x=93(441)x-20=64(442)17-0.4x=2.6(443)2x=13.8(444)3x-25=125(445)2x÷4=1.2(446)16x-6x+19=109(447)7.1x-4.2x=5.8(448)0.6x+3.1×4=24.4(449)12x+44×3=300(450)0.3x+3.6=22.5(451)14x-25=143(452)43x-27x+3.9=21.5(453)6.7x+1.9x=111.8(454)84x÷7=2.4(455)43x+34x-1.2=122(456)13.6+1.9x=21.2(457)22x-5×9=65(458)0.9x÷72=0.2(459)2.1+x=5.5(460)5.6x-1.5x-1.9=18.6(461)23+x=122(462)25x+3×3.7=18.6(463)(17x+12)÷33=5(464)0.5x+0.2x-4.1=16.2(465)73-x=27(466)12x-3x+32=149(467)1.4x+0.7x+0.3=40.2(468)4x-2x=94(469)x-6.4=2.6(470)3.6x+7.3x+1.4=121.3(471)1.1+x=3.8(472)x+3.6=11.5(473)8.5x+8.2x+1.2=34.6(474)2x-3.5=11.9(475)(3.8x-7)÷2=28.8(476)73x-5.2=9.4(477)3x+4×13=238(478)56÷x=8(479)3x+7×10=121(480)31x+55x-0.5=128.5(481)2x+6×2.9=22.4(482)18x-11x-4=66(483)x+0.7=6.7(484)16x+5x-2.7=54(485)x+63=160(486)15x-13x=24(487)4.9x-2.6x+4.3=36.5(488)11.8-0.7x=6.9(489)107-2x=57(490)53x-24x-3.8=19.4(491)(14x-32)÷31=8(492)0.7x÷35=0.3(493)x÷20=5(494)0.2x+0.2×37=12.8(495)(12x+24)÷24=2(496)x÷4=1.4(497)2x+12x-27=183(498)2(9x-6)=60(499)79x+1.9=17.7(500)3.2x-2.2x+4.1=16.1(501)5.7x+3.3x=45(502)3.2+0.2x=14.8(503)53x+22x+3.4=100.9(504)3.8x-3.4x-1.2=4(505)0.8x+2.1x=116(506)x÷16=1(507)5.5x+2.1x=121.6(508)3(24x-28)=132(509)71-x=67(510)3x-18×0.3=6.6(511)8.7x-2.6x=30.5(512)3x+18x=147(513)17x=153(514)81+62x=267(515)14x+30=58(516)x-5.1=4.8(517)55-x=30(518)60-x=41(519)164+11x=197(520)x+93=171(521)4x=12(522)5.5+0.8x=25.5(523)16.1-2x=10.3(524)7x=17.5(525)10x+12x+6=116(526)19x+5x+36=276(527)0.2x+3.4=11.4(528)5.7+5x=15.7(529)29x-4×6=150(530)9x-2x=91(531)5.7x+6.5x=73.2(532)34x+4×1.6=20(533)45+x=125(534)5x=2.5(535)9x=144(536)x÷4=8(537)x-7.8=1.6(538)0.4x-0.8×12=6.8(539)29+x=100(540)15x-8x-23=12参考答案(1)x=45(2)x=52(3)x=7.1(4)x=0.8(5)x=18(6)x=16(7)x=14(8)x=9.9(9)x=108(10)x=33(11)x=14(12)x=0.2(13)x=2(14)x=16(15)x=2(16)x=2(17)x=12(18)x=3.6(19)x=23(20)x=6(21)x=5(22)x=6(23)x=3(24)x=8(25)x=12(26)x=12(27)x=17(28)x=14(29)x=12(30)x=21(31)x=15(32)x=5(33)x=21(34)x=0.2(35)x=4(36)x=2(37)x=3.8(38)x=12(39)x=5(40)x=7.6(41)x=0.4(42)x=9.5(43)x=4.4(44)x=7(45)x=3(46)x=0.5(47)x=14(48)x=58(49)x=11(50)x=44(51)x=47(52)x=80(53)x=68(54)x=21(55)x=6(56)x=5(57)x=18(58)x=10(59)x=1.3(60)x=8(61)x=5(62)x=3(63)x=6.6(64)x=15(65)x=2(66)x=27(67)x=9(68)x=0.4(69)x=1.8(70)x=56(71)x=27(72)x=0.6(73)x=13(74)x=0.8(75)x=17(76)x=6(77)x=1(78)x=18(79)x=2(80)x=15(81)x=32(82)x=40(83)x=6(84)x=4.3(85)x=3.9(86)x=24(87)x=6(88)x=25(89)x=2(90)x=1.3(91)x=53(92)x=15.3(93)x=9(94)x=1.7(95)x=2.3(96)x=0.4(97)x=7(98)x=98(99)x=0.2(100)x=19(101)x=8.1(102)x=3.4(103)x=6(104)x=11(105)x=0.6(106)x=20(107)x=1.7(108)x=4(109)x=11(110)x=38(111)x=1(112)x=3(113)x=8(114)x=2.7(115)x=20(116)x=80(117)x=6.9(118)x=2.2(119)x=0.2(120)x=7(121)x=8.8(122)x=3(123)x=12(124)x=1.3(125)x=7(126)x=2(127)x=12.1(128)x=2.2(129)x=136(130)x=12(131)x=5(132)x=9(133)x=2(134)x=7(135)x=7(136)x=18(137)x=20(138)x=0.7(139)x=2(140)x=10(141)x=3(142)x=13(143)x=20(144)x=0.2(145)x=20(146)x=60(147)x=3.9(148)x=26(149)x=3(150)x=94(151)x=59(152)x=4(153)x=9(154)x=1.8(155)x=5(156)x=21(157)x=15(158)x=2.3(159)x=2(160)x=18(161)x=20(162)x=198(163)x=8(164)x=16(165)x=1.1(166)x=0.4(167)x=4(168)x=6.3(169)x=5.8(170)x=2(171)x=3(172)x=7(173)x=10(174)x=25(175)x=8.5(176)x=0.8(177)x=6(178)x=1.7(179)x=2(180)x=28(181)x=3(182)x=19(183)x=98(184)x=13(185)x=68(186)x=89(187)x=6(188)x=27(189)x=6(190)x=48(191)x=0.7(192)x=7(193)x=4(194)x=7(195)x=3(196)x=11(197)x=10(198)x=0.6(199)x=10(200)x=2(201)x=36(202)x=29(203)x=24(204)x=1.3(205)x=3(206)x=7(207)x=0.2(208)x=2(209)x=15(210)x=18(211)x=70(212)x=0.8(213)x=28(214)x=16(215)x=10(216)x=4(217)x=27(218)x=26(219)x=5(220)x=12(221)x=83(222)x=6.1(223)x=3(224)x=5.9(225)x=5(226)x=16(227)x=11(228)x=89(229)x=1.5(230)x=7(231)x=8(232)x=40(233)x=29(234)x=4(235)x=8.2(236)x=3(237)x=180(238)x=47(239)x=3(240)x=2(241)x=0.5(242)x=3(243)x=0.3(244)x=1.5(245)x=7(246)x=9.2(247)x=9.2(248)x=10(249)x=1.6(250)x=31(251)x=31(252)x=5(253)x=9(254)x=4(255)x=5(256)x=59(257)x=0.7(258)x=5(259)x=2(260)x=2(261)x=4(262)x=3(263)x=5(264)x=2(265)x=5(266)x=10(267)x=9(268)x=5.7(269)x=7(270)x=5(271)x=5.8(272)x=99(273)x=3(274)x=13(275)x=0.8(276)x=10(277)x=10(278)x=8(279)x=62(280)x=4.4(281)x=14(282)x=3.5(283)x=0.6(284)x=29(285)x=105(286)x=14(287)x=14(288)x=48(289)x=14(290)x=3(291)x=39(292)x=20(293)x=28(294)x=0.7(295)x=3(296)x=2(297)x=1.7(298)x=18(299)x=17(300)x=10(301)x=6(302)x=16(303)x=5(304)x=5(305)x=0.7(306)x=0.7(307)x=8(308)x=2(309)x=23(310)x=15(311)x=19(312)x=36(313)x=42(314)x=21(315)x=7(316)x=0.7(317)x=89(318)x=3(319)x=2(320)x=17(321)x=9.4(322)x=1.8(323)x=4(324)x=0.8(325)x=52(326)x=17(327)x=54(328)x=9.2(329)x=27(330)x=32(331)x=6.2(332)x=6(333)x=3(334)x=11(335)x=5(336)x=3(337)x=14(338)x=0.3(339)x=7(340)x=1(341)x=23(342)x=13(343)x=2.6(344)x=11(345)x=56(346)x=17(347)x=0.3(348)x=45(349)x=12(350)x=8(351)x=21(352)x=8(353)x=0.4(354)x=9(355)x=0.7(356)x=7(357)x=2.9(358)x=77(359)x=13(360)x=4(361)x=7(362)x=36(363)x=11(364)x=5(365)x=21(366)x=6(367)x=6(368)x=13(369)x=0.4(370)x=20(371)x=9.3(372)x=3.3(373)x=11(374)x=2(375)x=5.7(376)x=1.2(377)x=11(378)x=10(379)x=5(380)x=7(381)x=14(382)x=4(383)x=2(384)x=12(385)x=0.2(386)x=0.8(387)x=14(388)x=9(389)x=7.5(390)x=45(391)x=27(392)x=98(393)x=15(394)x=30