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)31x÷93=0.2(2)(5x-23)÷32=1(3)8.8x-3.7x-3.6=11.7(4)x÷5=1.9(5)(2.1x+8.4)÷33=1.4(6)0.3x+1x+0.9=125.7(7)3(3.3x+0.3)=40.5(8)x+12=96(9)x+8=83(10)x÷30=0.3(11)13.2-17x=1.3(12)60-x=10(13)(4.1x+6)÷14=5.7(14)58x-2x+4.1=54.5(15)5x+2×0.6=7.7(16)8.9x-4.8x-3.6=12.8(17)9x+54×3=225(18)10x÷5=12(19)0.8x+5.4=7(20)4x+2×3.5=8.2(21)x÷3=4.3(22)7.5x-5x+3.1=10.6(23)(6x-16)÷14=4(24)1.9x=13.3(25)4x÷26=0.6(26)10.8-2x=7.2(27)8.8x+6.7x=170.5(28)3x+17×0.7=26.6(29)7x+5x=192(30)x÷36=0.3(31)9.8-x=4.8(32)0.5x÷65=0.3(33)39+x=108(34)x-3.3=4(35)9.5x+2.6=21.6(36)3.2x=16(37)x-58=29(38)0.9x-2.9=12.4(39)36x÷24=0.6(40)3x+9.5x=50(41)x-28=51(42)47x+3×4.7=28.2(43)155-11x=56(44)7.2+x=13.7(45)174+10x=254(46)0.3x+2.6=3.8(47)0.2x=0.6(48)1.4x+4.5x+1.2=54.3(49)1.5x÷24=0.5(50)3(0.3x+2)=38.4(51)4.6x+0.3×19=14.9(52)16.9-15x=3.4(53)16x-12x+4=20(54)4.2x÷6=1.4(55)0.4x=11.6(56)2.3+x=6(57)50x+75x+2.5=40(58)9(x-27)=144(59)10x+3x+4=238(60)x+4.3=8.4(61)0.8x+0.3x+4.7=58.6(62)10x-34×0.4=3.4(63)0.5x+1.9=17.4(64)36x÷4=18(65)1.8x-1.3x+2.5=23(66)13x-3.6=15.9(67)163+6x=241(68)39x+3.9=19.5(69)50+x=76(70)39x÷13=9(71)x-1.7=7.4(72)14x+4×3.2=21.2(73)50x=10(74)18x-13x=50(75)21+9x=111(76)57+x=156(77)16x-8x+1.7=4.1(78)65x+18x+4.1=29(79)62+x=154(80)4(2.9x+0.2)=47.2(81)2x-27=145(82)x-0.9=3.9(83)13x-8x+5=65(84)17x-4×0.5=6.5(85)43x-41=131(86)1.9+1x=7.9(87)3x÷18=7(88)2x+11×2=72(89)4x+3.9=15.5(90)10.7-7x=8.6(91)(8x-8)÷4=22(92)2.1x-0.2x-0.8=63.8(93)63x+40x-3.9=27(94)5x-26×0.4=9.6(95)2.9x+4.5x=37(96)x÷6=0.7(97)6x-3x+37=61(98)3x=21(99)13÷x=1.3(100)x÷3=19(101)3(3.7x+1.5)=48.9(102)13x+7x+49=229(103)3x÷4=1.5(104)(17x-9)÷13=15(105)x-69=15(106)3.1x+0.8x=27.3(107)x÷2=1(108)8.9x-2x+2.1=64.2(109)83x-6x-3.2=89.2(110)1.2x+1.2×15=27.6(111)41x+14x-3.5=46(112)4.7x+1.5x+0.8=75.2(113)1.5x÷20=0.3(114)2.4x+0.5x+4.9=89(115)55+x=103(116)2.9x-2.6=9(117)24x-9x-4.7=28.3(118)198÷x=9(119)5(x+25)=135(120)6x-4.3=1.1(121)54x-3x-2.5=84.2(122)x-21=15(123)(8x+47)÷3=61(124)4x+45=133(125)0.6+x=1.6(126)1.9x+0.8×23=33.6(127)88-x=23(128)8x÷6=2(129)x÷6=4(130)127-4x=91(131)32÷x=16(132)34+x=78(133)1.2x+0.4×34=17.2(134)5.7+27x=16.5(135)3x+66×3=318(136)12.6+2x=30.6(137)8x+12x-32=228(138)14.5+1x=34.5(139)14x+2x+29=237(140)4(14x+17)=180(141)4(2x-8.1)=47.6(142)4x-2×16=100(143)1.2x+5.3=7.7(144)x-6.4=1.5(145)5x+3x-26=38(146)1.1x-0.9×10=6.4(147)2x+24=42(148)18x-7x-43=56(149)2(5.2x+4.4)=29.6(150)9.2-x=6.4(151)3x+34=55(152)2.4+x=3.1(153)x-4.5=4.7(154)0.9x+0.4x-3.4=27.8(155)6+x=12.2(156)18.6+8x=29.8(157)140÷x=28(158)4.9x-2.3x=46.8(159)x+4=53(160)14.1-0.2x=3.3(161)7x+2×4.2=14.7(162)20x÷5=2.8(163)80-x=68(164)(3.9x-5.2)÷13=1.7(165)1.8x÷20=0.9(166)90-x=83(167)151-14x=81(168)(5.2x-2.6)÷27=2.6(169)174+4x=290(170)(3x+17)÷26=4(171)5(3.7x-2.7)=42(172)4.1-14x=1.3(173)(6x+7)÷5=3.8(174)7.2x-3.5x-0.7=17.8(175)1.9x+2.9=10.5(176)1.5x-1.3×9=6.3(177)11x=5.5(178)x+0.3=7.2(179)13.1-0.5x=2.6(180)x+4.4=5(181)x-2.1=7.6(182)13(x+7)=117(183)42x-5x-4.8=80.3(184)73+x=155(185)180-8x=36(186)5.1+x=11.9(187)x÷32=0.4(188)15.9+0.7x=21.5(189)0.3x+4.8×4=30(190)2.5x-0.2×39=9.7(191)x-7=62(192)x÷14=14(193)17x+12x=145(194)5.1x-1.9x=48(195)4(1.4x+1.8)=46.4(196)9x÷5=3.6(197)3.2÷x=0.8(198)8x÷64=2(199)76-x=46(200)15x-8x+3.6=34.4(201)(6x+6)÷18=7(202)4x-20=140(203)10(8x-44)=200(204)24x÷12=0.4(205)47+x=100(206)3x-14×0.6=2.4(207)5.7x+7.9x+3.1=84.7(208)15x-7x=104(209)6x+1.9=8.5(210)5.2x+2.7x-4.6=98.1(211)11x+40x+2.4=43.2(212)9.2-0.2x=8.4(213)8x=11.2(214)18x-2x-38=90(215)4(4.2x-0.7)=30.8(216)x+99=143(217)4(x+18)=120(218)5x+4.9x=148.5(219)19x+10x+4.6=155.4(220)15(5.1x-7.6)=39(221)8.2+x=10.3(222)2x=1.6(223)(2x+2)÷3=2(224)2.4-x=1(225)5x-30×5=15(226)3x+1.1=16.7(227)34x+27×0.6=26.4(228)6x+11×6=216(229)18.1+3x=29.8(230)3x=57(231)26x+56=160(232)7x+9x+49=369(233)0.5x+0.4×8=10.7(234)2x-18×2=110(235)4(3x-10)=188(236)5.1x-3x=16.8(237)6x=10.2(238)x+0.7=5.2(239)(8.7x+2)÷23=1.6(240)38x-2.4=5.2(241)x+2.6=7(242)3.1x-1×5=1.2(243)x+33=67(244)12x-8x+16=36(245)(0.3x+0.9)÷4=1.2(246)58+50x=158(247)(8x-38)÷18=9(248)9x+28x+3=128.8(249)5.6-x=1.7(250)5(2x+3)=145(251)3.6x+3.2x=88.4(252)7+x=54(253)8(4x-42)=80(254)(1.9x-2.3)÷10=3(255)5.3-x=1.9(256)3(x+19)=153(257)13x-2x-41=91(258)12x-2.2=5(259)2.3x-0.4×15=12.4(260)x÷3=3.7(261)2.1x-1.4×3=4.2(262)0.4x+4.7=8.3(263)7x-2=15.5(264)22x-3×4.1=5.3(265)6x+3×33=171(266)97x=19.4(267)6x-25=113(268)17.8÷x=0.2(269)131-57x=17(270)166+29x=253(271)2.6+2.2x=20.2(272)x-6=72(273)7x+3.8x=129.6(274)6x+36=150(275)14x+2x=160(276)(14x+49)÷21=7(277)17.2-0.4x=3.2(278)17x+5x-31=123(279)7.7x+2.9x=31.8(280)14.8-5.1x=4.6(281)34x=136(282)78x÷4=39(283)15.7-6x=3.7(284)x÷2=24(285)x+94=192(286)30+13x=69(287)2x+2.4=14.4(288)5.2+63x=17.8(289)0.6x-3.5=12.1(290)42x-22x+3.9=9.9(291)18x+5x+37=129(292)18x+8x-43=243(293)34x-11=159(294)2(5.7x+8.6)=40(295)15x+16x+48=358(296)(11x-49)÷3=79(297)0.8x=7.2(298)(18x+39)÷7=39(299)71x-43x+0.9=6.5(300)(16x-12)÷2=98(301)x-3.5=3.8(302)(2.8x+2.6)÷2=6.9(303)2x+37=115(304)70x=140(305)4x÷2=28(306)87x+16x-1.8=39.4(307)17-5.9x=5.2(308)1.1x+0.7×10=26.8(309)13x-2×52=39(310)73x+67x+0.2=168.2(311)3(0.3x-7.9)=19.5(312)16x+2x=72(313)x÷6=12(314)2x+5.1=11.1(315)3.7x-2.4x=27.3(316)1.8x=5.4(317)x+6.2=11.3(318)93÷x=31(319)3(0.2x+9.6)=33(320)5x+13x-7=101(321)0.2x+0.2×6=4.2(322)97x=194(323)46x+4=13.2(324)(12x+18)÷14=21(325)14.8+11x=21.4(326)3.6x-1.8x+4.3=16.9(327)144÷x=48(328)5x-4.2=4.3(329)18-2.7x=12.6(330)9.9x+2.3x-3.3=21.1(331)2.4x+8.3x-2.3=104.7(332)5x-3×2.4=2.3(333)198+2x=280(334)2x+9×12=144(335)13x=169(336)3x-0.3x-3=51(337)x-12=79(338)0.2x-5.2=12.8(339)2x÷4=31(340)5.5x-1.8x=59.2(341)17x-15x=12(342)24x-2.6=16.6(343)7.7-x=6.2(344)(4.9x-5.1)÷2=39.1(345)0.3+x=10.2(346)x+81=119(347)8x+14x-25=63(348)29x=145(349)3.6x-0.9x-3=48.3(350)11.1-4x=10.3(351)6.8x-3.5=10.1(352)29x+65x-3.9=43.1(353)24x÷16=3(354)1x-5.2=9.8(355)15x-3×4=3(356)95-x=87(357)15x+72x-2.2=32.6(358)2.2x-3.9=7.1(359)(1.3x+9.4)÷2=7.3(360)11x+3x=56(361)58x-2.6=14.8(362)30x+18=168(363)0.2x+3.8=21.8(364)19x-12×0.3=11.6(365)(1.3x-9.1)÷13=0.5(366)(12x-15)÷33=1(367)54÷x=3(368)6.8+x=16.1(369)8x-3x+20=110(370)3(0.9x-9.3)=36.9(371)7.6x+2.6x-2.1=59.1(372)x+32=43(373)6(5.7x-7.1)=25.8(374)5x=145(375)1.2x=14.4(376)2x-15×3=19(377)2.5-x=1.7(378)11x-2x=54(379)12x-5x+36=85(380)0.5x-4.1=3.4(381)(10x+24)÷2=57(382)8x+3x-11=33(383)9.5x-6.2x-0.4=12.8(384)54x-10x+4.7=39.9(385)x÷6=25(386)9.4x-2x=59.2(387)3x+2x=65(388)88x+87x-1.9=85.6(389)2.6x÷65=0.2(390)19.9-0.7x=4.5(391)19x+14x-4.9=113.9(392)12x+15x-40=122(393)5x+14×10=175(394)0.2x÷24=0.6(395)1x+0.7×22=32.4(396)0.4x-1.7=16.7(397)9.8x-2.8x+3=24(398)5x-0.2x-0.2=95.8(399)0.7x-0.3×43=1.8(400)101-9x=29(401)37x+97x-4.7=35.5(402)2.8x-2.1×5=9.1(403)x÷96=2(404)3.6-2x=2.4(405)x+7=14.2(406)9x-19=161(407)6(6x-17)=78(408)4x+68x-4.2=31.8(409)9x-52×2=40(410)1x+4x-2.4=82.6(411)19x-12x+3=24(412)x÷5=6(413)5.4x+4.3x-2.7=84.6(414)6.6+4x=17.8(415)4.5x+3.9x+4.8=72(416)8x-5x-21=15(417)1.2x=7.2(418)7x+33=131(419)15x+4x=57(420)13x-47=135(421)36x-26x+1=18(422)(7.4x-4.2)÷39=1.6(423)9.6+0.2x=16.8(424)5x+32×0.5=20(425)18x-3.8=10.6(426)15x-11x-14=14(427)x+1.4=4.9(428)15x-2x-31=112(429)9x+16x=275(430)1.4x+3.9=8.1(431)84÷x=14(432)36-x=26(433)1.7x+0.5x-0.9=98.1(434)(16x-38)÷18=5(435)3(0.6x-2.5)=21.3(436)12x+13x+37=262(437)14.6+0.3x=17.3(438)90-x=38(439)4÷x=0.2(440)143+8x=287(441)x-27=20(442)3(3x+8)=96(443)6x=11.4(444)3.2x+7.5x+0.5=86.1(445)x-3.5=3(446)5.4x+6.2x=150.8(447)2.2x-1.9x+1.2=8.4(448)7x+3x=180(449)17.3+6x=29.3(450)3x=10.8(451)6x-4x+38=60(452)10x+23x+4.7=77.3(453)8(1.9x+1.6)=43.2(454)4.3x-2.4x+3.2=31.7(455)64÷x=32(456)5x-18×2=114(457)5x-4.3x=1.4(458)8x-4x+1.2=22.4(459)2(1.9x-6.8)=28.2(460)13x-2×3.1=1.6(461)4x-21=163(462)5.7x-1.2x-0.8=12.7(463)182-3x=119(464)2(15x-48)=24(465)13x-4x=27(466)4.4x-3.6x+4.4=6(467)3.5x+1.2x+1.6=53.3(468)3(x-6)=60(469)8x-6x-13=29(470)17÷x=1(471)9x-3x=96(472)16.2÷x=0.2(473)0.8x÷5=4(474)0.8x÷40=0.2(475)18x-7x=44(476)6x-11×13=49(477)15x-11x-19=17(478)13.8÷x=2.3(479)x÷3=1.2(480)28x-6x-0.6=56.6(481)(2x-2.8)÷4=7.3(482)87÷x=3(483)3(2x+12)=66(484)43-x=40(485)(5x+4)÷11=9(486)23x+84x+4.5=90.1(487)19x-15x-0.8=19.6(488)4x+2.5x-2.4=153.6(489)61x=122(490)27x+2×4.2=21.9(491)(4.3x+6.9)÷4=7.1(492)2x+2.7=7.9(493)4.2x-0.8x=68(494)16x-14x-3.4=5.6(495)x+9.5=14(496)3.3x-1.3x+1.6=11.6(497)x-2.6=4.5(498)7.2+2x=19.2(499)3(4x-5)=105(500)3.8x-0.2x=14.4(501)7x-5x=12(502)8x=3.2(503)13x+2x+4=79(504)63x÷7=1.8(505)7.6-x=4.8(506)16.1-5x=8.1(507)59x-3x+4.6=60.6(508)6x+3x+22=211(509)65x-6x-1.4=16.3(510)4.4x=8.8(511)9.2-x=7.7(512)7.4+0.3x=23.3(513)194-16x=34(514)35x-24x-2.6=12.8(515)19.1+4.2x=31.7(516)(5.6x-7)÷7=5.4(517)5(4x+13)=165(518)3x-34=17(519)7x+73x+4.1=44.1(520)9x+17x-21=161(521)16.6+21x=29.2(522)0.8x-0.7×4=6(523)(2.3x+1.2)÷13=0.8(524)17.6-1.3x=9.8(525)7x-2×9=178(526)24x+20×7=236(527)160-3x=22(528)16x-10x+18=84(529)(8x-8.5)÷5=12.7(530)6x+40=64(531)4x+31×4=136(532)16.8÷x=0.2(533)x÷6=19(534)5.4÷x=0.3(535)18x+2.6=18.8(536)5x-3x=18(537)15x-5x-8=82(538)x-18=38(539)13(x-36)=169(540)x+82=119参考答案(1)x=0.6(2)x=11(3)x=3(4)x=9.5(5)x=18(6)x=96(7)x=4(8)x=84(9)x=75(10)x=9(11)x=0.7(12)x=50(13)x=18(14)x=0.9(15)x=1.3(16)x=4(17)x=7(18)x=6(19)x=2(20)x=0.3(21)x=12.9(22)x=3(23)x=12(24)x=7(25)x=3.9(26)x=1.8(27)x=11(28)x=4.9(29)x=16(30)x=10.8(31)x=5(32)x=39(33)x=69(34)x=7.3(35)x=2(36)x=5(37)x=87(38)x=17(39)x=0.4(40)x=4(41)x=79(42)x=0.3(43)x=9(44)x=6.5(45)x=8(46)x=4(47)x=3(48)x=9(49)x=8(50)x=36(51)x=2(52)x=0.9(53)x=4(54)x=2(55)x=29(56)x=3.7(57)x=0.3(58)x=43(59)x=18(60)x=4.1(61)x=49(62)x=1.7(63)x=31(64)x=2(65)x=41(66)x=1.5(67)x=13(68)x=0.4(69)x=26(70)x=3(71)x=9.1(72)x=0.6(73)x=0.2(74)x=10(75)x=10(76)x=99(77)x=0.3(78)x=0.3(79)x=92(80)x=4(81)x=86(82)x=4.8(83)x=12(84)x=0.5(85)x=4(86)x=6(87)x=42(88)x=25(89)x=2.9(90)x=0.3(91)x=12(92)x=34(93)x=0.3(94)x=4(95)x=5(96)x=4.2(97)x=8(98)x=7(99)x=10(100)x=57(101)x=4(102)x=9(103)x=2(104)x=12(105)x=84(106)x=7(107)x=2(108)x=9(109)x=1.2(110)x=8(111)x=0.9(112)x=12(113)x=4(114)x=29(115)x=48(116)x=4(117)x=2.2(118)x=22(119)x=2(120)x=0.9(121)x=1.7(122)x=36(123)x=17(124)x=22(125)x=1(126)x=8(127)x=65(128)x=1.5(129)x=24(130)x=9(131)x=2(132)x=44(133)x=3(134)x=0.4(135)x=40(136)x=9(137)x=13(138)x=20(139)x=13(140)x=2(141)x=10(142)x=33(143)x=2(144)x=7.9(145)x=8(146)x=14(147)x=9(148)x=9(149)x=2(150)x=2.8(151)x=7(152)x=0.7(153)x=9.2(154)x=24(155)x=6.2(156)x=1.4(157)x=5(158)x=18(159)x=49(160)x=54(161)x=0.9(162)x=0.7(163)x=12(164)x=7(165)x=10(166)x=7(167)x=5(168)x=14(169)x=29(170)x=29(171)x=3(172)x=0.2(173)x=2(174)x=5(175)x=4(176)x=12(177)x=0.5(178)x=6.9(179)x=21(180)x=0.6(181)x=9.7(182)x=2(183)x=2.3(184)x=82(185)x=18(186)x=6.8(187)x=12.8(188)x=8(189)x=36(190)x=7(191)x=69(192)x=196(193)x=5(194)x=15(195)x=7(196)x=2(197)x=4(198)x=16(199)x=30(200)x=4.4(201)x=20(202)x=40(203)x=8(204)x=0.2(205)x=53(206)x=3.6(207)x=6(208)x=13(209)x=1.1(210)x=13(211)x=0.8(212)x=4(213)x=1.4(214)x=8(215)x=2(216)x=44(217)x=12(218)x=15(219)x=5.2(220)x=2(221)x=2.1(222)x=0.8(223)x=2(224)x=1.4(225)x=33(226)x=5.2(227)x=0.3(228)x=25(229)x=3.9(230)x=19(231)x=4(232)x=20(233)x=15(234)x=73(235)x=19(236)x=8(237)x=1.7(238)x=4.5(239)x=4(240)x=0.2(241)x=4.4(242)x=2(243)x=34(244)x=5(245)x=13(246)x=2(247)x=25(248)x=3.4(249)x=3.9(250)x=13(251)x=13(252)x=47(253)x=13(254)x=17(255)x=3.4(256)x=32(257)x=12(258)x=0.6(259)x=8(260)x=11.1(261)x=4(262)x=9(263)x=2.5(264)x=0.8(265)x=12(266)x=0.2(267)x=23(268)x=89(269)x=2(270)x=3(271)x=8(272)x=78(273)x=12(274)x=19(275)x=10(276)x=7(277)x=35(278)x=7(279)x=3(280)x=2(281)x=4(282)x=2(283)x=2(284)x=48(285)x=98(286)x=3(287)x=6(288)x=0.2(289)x=26(290)x=0.3(291)x=4(292)x=11(293)x=5(294)x=2(295)x=10(296)x=26(297)x=9(298)x=13(299)x=0.2(300)x=13(301)x=7.3(302)x=4(303)x=39(304)x=2(305)x=14(306)x=0.4(307)x=2(308)x=18(309)x=11(310)x=1.2(311)x=48(312)x=4(313)x=72(314)x=3(315)x=21(316)x=3(317)x=5.1(318)x=3(319)x=7(320)x=6(321)x=15(322)x=2(323)x=0.2(324)x=23(325)x=0.6(326)x=7(327)x=3(328)x=1.7(329)x=2(330)x=2(331)x=10(332)x=1.9(333)x=41(334)x=18(335)x=13(336)x=20(337)x=91(338)x=90(339)x=62(340)x=16(341)x=6(342)x=0.8(343)x=1.5(344)x=17(345)x=9.9(346)x=38(347)x=4(348)x=5(349)x=19(350)x=0.2(351)x=2(352)x=0.5(353)x=2(354)x=15(355)x=1(356)x=8(357)x=0.4(358)x=5(359)x=4(360)x=4(361)x=0.3(362)x=5(363)x=90(364)x=0.8(365)x=12(366)x=4(367)x=18(368)x=9.3(369)x=18(370)x=24(371)x=6(372)x=11(373)x=2(374)x=29(375)x=12(376)x=32(377)x=0.8(378)x=6(379)x=7(380)x=15(381)x=9(382)x=4(383)x=4(384)x=0.8(385)x=150(386)x=8(387)x=13(388)x=0.5(389)x=5(390)x=22(391)x=3.6(392)x=6(393)x=7(