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)0.2x+2.2x=48(2)3x+20=191(3)18x+15x-1.2=114.3(4)2.7x÷21=0.9(5)19.2÷x=0.3(6)3(x+26)=198(7)0.7x-4.5=11.6(8)20x+94x-0.7=90.5(9)1.6x-0.7x+4.6=50.5(10)x-5.6=3.2(11)3(2x+3)=63(12)(1.1x-1.6)÷14=1.3(13)36x÷8=0.9(14)57x-27x+2.9=32.9(15)(1.4x+3.2)÷12=1.2(16)3x+38=122(17)(5.2x-7.7)÷7=4.1(18)2(0.3x+1.8)=6.6(19)18x+5x-16=191(20)55+x=151(21)5x-2x+33=132(22)4x-43=17(23)10x+11x+4=88(24)2x+2.9=5.7(25)0.2x+9.9x+0.6=91.5(26)171+12x=339(27)0.3x+3.8=20.9(28)4x+2×0.3=4.2(29)13.8÷x=2.3(30)188+18x=242(31)23x-2x+0.4=42.4(32)18x+13x+20=237(33)6.7x+9x=109.9(34)6x+34x+1.6=17.6(35)30x+7x-1.5=20.7(36)12x-33×2=30(37)2x+22×8=200(38)25(1.6x-3)=45(39)0.8x-0.3x-3.2=7.3(40)1.8x-0.2×4=10(41)(9x-38)÷8=11(42)9.2-x=1.6(43)(14x+25)÷5=33(44)2.2x+0.7×27=27.7(45)(9.1x-3.4)÷32=1.6(46)5x+3×46=173(47)14x-5x=27(48)36x+9x+1.9=24.4(49)x-66=32(50)x-54=22(51)3.9+x=4.5(52)x÷49=2(53)5.7x-3.9x=21.6(54)87-x=84(55)12.6+0.2x=13(56)37+3x=133(57)0.6x-2.1×2=6.6(58)10x-2×0.7=14.6(59)18x+15x+26=257(60)x+77=116(61)9x-5x=88(62)15x÷6=2(63)6x-4x=40(64)0.7x+1x-4.3=106.2(65)2.9x-1.6x+4.4=47.3(66)2.3x-0.3x=42(67)6.1+x=9.7(68)19.4÷x=0.2(69)74x-29x+4.2=58.2(70)10x+25×2=80(71)1.7x+5.1=23.8(72)6x+58=226(73)41x=82(74)(13x-43)÷6=34(75)18x+4×23=254(76)0.2x+4×4=23.8(77)0.4x-1.1×10=1.4(78)x÷35=3(79)93x-17x+4.4=19.6(80)4x+14×2=116(81)x-4.4=4.3(82)3.2x+5.5=18.3(83)x-31=10(84)62x-46=140(85)28+8x=188(86)14x+4x+41=167(87)8.4+1.8x=21(88)5x+32=67(89)0.4x÷2=1.8(90)x÷45=4(91)(13x-22)÷43=1(92)(0.5x+9.1)÷22=0.8(93)6.2+x=13.9(94)74x+53=201(95)x+1.4=5(96)1.7+x=9.9(97)x÷8=9(98)10x-3.1=12.9(99)3.4+0.2x=20.8(100)2(11x+14)=138(101)36÷x=12(102)42÷x=14(103)(6x+2)÷8=8.5(104)5x-11×7=103(105)2x-5×8=86(106)0.3x+2.1=18.3(107)4x÷70=0.2(108)89x-15x-3=56.2(109)6x+2=11(110)8x-54=106(111)97x+11x-3.7=104.3(112)5x÷10=0.4(113)4x-3×0.2=14.2(114)23(0.7x-5.9)=41.4(115)2.7x+1.9x-4.6=156.4(116)4.7+x=8.1(117)1.4x=12.6(118)8x-10×5=102(119)x+8.9=12.2(120)x+34=78(121)4.3x-0.6×25=2.2(122)x-7.8=1.5(123)(5.3x+7.8)÷2=30.4(124)13x-2x+10=164(125)42x=84(126)1.3x+1×5=12.8(127)75x-68x-2.8=2.1(128)65x-42=88(129)120÷x=15(130)0.4x-0.3×7=8.3(131)2.3+x=6(132)x÷19=0.6(133)4.4x-1.8x=23.4(134)1.8+x=3.2(135)43x-5.6=7.3(136)5x+3x=80(137)10x+2.9=22.9(138)45x-14x+4.8=14.1(139)5.2+x=9.3(140)x÷3=18(141)6.4-x=5.5(142)4.5x÷30=0.3(143)15.9+62x=34.5(144)14x-7x=77(145)36-x=28(146)142-38x=28(147)41-x=20(148)192÷x=8(149)76+24x=124(150)(3.3x+8.1)÷3=17(151)(8x-42)÷10=19(152)(14x+20)÷11=12(153)53+x=134(154)9-1.8x=3.6(155)5(6x-49)=115(156)7.6x+6.7x=157.3(157)24(3.8x-9.4)=48(158)8.8x-2.9=14.7(159)17x+20x+4.1=59.6(160)x+6.3=13.9(161)1.9x=15.2(162)2x÷18=1(163)90-22x=46(164)13x-3x=120(165)x-73=21(166)3x-12=48(167)7.6x+6.2x=96.6(168)1.1x-0.8x+3.4=25.9(169)12(0.2x-5)=28.8(170)17.9-3x=13.4(171)13x=117(172)19x+15x+40=142(173)(16x+40)÷8=15(174)28x-18=178(175)14x-5x+47=110(176)95-x=82(177)70-x=57(178)29+x=94(179)10x+22=142(180)x÷6=1(181)(4x-31)÷11=3(182)11x=11(183)0.4x-1.8=8.2(184)0.8x-0.4x-3.2=14.4(185)28x-9×11=41(186)15+1x=17(187)10.8+0.2x=19.8(188)6x+2x=80(189)2.5+0.4x=11.7(190)15x-6x+34=133(191)9.4x+1.3x+1.2=65.4(192)30x-17x+3.9=45.5(193)(17x+30)÷25=8(194)33x+16×1.1=24.2(195)5x-3x+16=46(196)9.9x-8.7x+2.4=9.6(197)0.8x-5.8=6.2(198)3.6x-1.9x+1.4=16.7(199)x-3.8=5.3(200)19.4-2.1x=15.2(201)40+x=117(202)39x-17x-0.3=48.1(203)21x-1.6=15.2(204)0.3x+5.5=11.2(205)11x-51=81(206)x-3.4=6.4(207)x+3.1=3.4(208)18.4-3x=6.1(209)9x+3x-4.9=65.9(210)195÷x=3(211)(17x+39)÷47=3(212)14x-2x=144(213)1.9x-0.9x-0.2=9.8(214)65x-43x-1.3=22.9(215)3(7x-38)=75(216)5x-2x-46=56(217)x-2.6=1.8(218)36x+20×0.2=22(219)(12x-48)÷4=6(220)67-2x=61(221)21x-3×0.4=15.6(222)20+3x=104(223)9(0.6x-8.4)=32.4(224)x÷10=1.1(225)8x-1.8x-2.8=59.2(226)49-x=12(227)19.4-0.2x=11.4(228)12(0.6x-5.1)=25.2(229)0.6x+4.8x+2.8=13.6(230)x+34=88(231)49x-24x+2.4=7.4(232)81÷x=3(233)2(0.4x+0.8)=18.4(234)4x÷52=2(235)21x÷9=7(236)4.5-11x=2.3(237)15x-14×0.8=2.3(238)2.7x=16.2(239)22x+5×15=207(240)98+x=189(241)x+0.5=6(242)25x=10(243)5(2x+0.8)=24(244)3.9-0.6x=2.1(245)(3.6x+8.2)÷2=32.9(246)16x-8x-45=51(247)x+74=89(248)6x+7x=247(249)15.9-0.3x=5.7(250)4.2x-2.9x+0.7=12.4(251)44x-22x-2.1=2.3(252)44x=13.2(253)0.6x+0.4×21=10.8(254)4x-2x-8=28(255)2.1x-5.2=7.4(256)5.3x-4.9x-2.3=1.7(257)0.6÷x=0.2(258)24x+66x+3.4=57.4(259)0.2x-3.7×2=1.4(260)3x+43x+1.2=19.6(261)11.5+0.2x=27.9(262)3(5x-46)=177(263)112-7x=49(264)2(2x+8)=100(265)3.9-4x=1.5(266)192-12x=132(267)x-3.6=4.2(268)7x+16x-2.4=131(269)88+x=181(270)119+15x=164(271)8x+7x-27=303(272)31x+33x+4.2=164.2(273)189÷x=21(274)17x-11x+34=88(275)(2x-24)÷2=6(276)(5x+41)÷48=2(277)0.3x-4.4=4.3(278)1.2x+4.5x-2.6=77.2(279)3.3x-1.7x=30.4(280)3(10x-14)=48(281)26x-2×60=36(282)7.2-x=2.4(283)1.1x-3.7=9.5(284)2x=15.8(285)2x=2.8(286)0.8x-0.5×6=15.4(287)x+4.3=13.4(288)13x=16.9(289)29x-3×45=39(290)5x-2×1.7=16.1(291)15x-2.7=13.8(292)4.4÷x=2.2(293)4x+10x-6=36(294)14x+9x-27=88(295)4.1+x=9(296)11x-2x=54(297)10÷x=0.2(298)16.8+85x=33.8(299)17.8-7x=14.3(300)x+3.3=5.2(301)3(x+15)=123(302)84x-58x-1.3=22.1(303)4.6x+3.2x=46.8(304)9.2-x=4.9(305)73x-4x+4.8=46.2(306)12x-4x-14=34(307)18x-11x-20=15(308)21x-2×3.5=1.4(309)3x=141(310)65x-53=142(311)12+84x=28.8(312)(13x+7)÷4=44(313)52x÷13=12(314)4(12x-11)=52(315)6x+12x=270(316)0.3x=8.4(317)4x=1.2(318)17x+5x+15=235(319)48x-8×0.3=7.2(320)18+0.3x=24.9(321)0.5x÷10=0.7(322)20x÷15=12(323)3(6x-9)=99(324)0.3x+1.5×6=15.3(325)38x+18x-2.8=86.8(326)1.8x÷21=0.6(327)3(6x+18)=162(328)13x+18x-24=38(329)41x+4×4.9=31.9(330)3x-4×0.7=1.4(331)x+7.5=10(332)2.7x+4.7x+4.1=144.7(333)(10x+42)÷4=28(334)5.1x-2x-2.9=3.3(335)1.7x+0.5x-4.7=107.5(336)28(0.2x+0.4)=33.6(337)49x+78x+3.2=92.1(338)1.8x-0.9×4=7.2(339)118-4x=78(340)6.7x-4.8x+0.4=4.2(341)18x+5.3=23.3(342)71x+2x-3.5=18.4(343)87-x=75(344)83x-74x+1.2=10.2(345)0.2x-3.5=11.1(346)3x+4.4=9.8(347)59-x=55(348)x-49=17(349)2x-1.4=8.6(350)1.4x+5.2=17.8(351)17.3+12x=24.5(352)14.5-0.4x=4.5(353)9.2x-4.1x=45.9(354)19.2÷x=3.2(355)3(8x+24)=120(356)0.2x+1.5×11=18.3(357)61x+24x+1.4=52.4(358)87x-37x-3.1=31.9(359)x÷60=0.2(360)13x+14x+32=356(361)15x÷6=0.5(362)13x-3x+46=106(363)9x-7x-11=11(364)(8x-6)÷12=7.5(365)12x+54=102(366)5.2x+3.4x-0.7=85.3(367)x-43=34(368)3x+43=112(369)17x-5.9=7.7(370)x-2=11(371)8x-5x=51(372)7x+33×0.2=13.6(373)10x+13x=115(374)5x+2.3=6.8(375)(2.1x-7.5)÷18=0.4(376)1.9+2x=12.7(377)(5.2x-1.2)÷24=1.9(378)x-51=38(379)5x-1.6=7.4(380)2+0.8x=6(381)7.5x+4.4x=35.7(382)91-x=36(383)0.2x+3=18.6(384)95x+50x+3.7=76.2(385)2(2.2x-9.1)=39(386)2.2x÷44=0.2(387)45x÷15=0.6(388)16x+8x-44=76(389)23x=115(390)(4.9x-4.5)÷10=2(391)18x-5x-13=65(392)8.2x-3.3x-1.4=18.2(393)28x+3.7=9.3(394)3.4x-2.9x=12.5(395)(4.1x-7.3)÷25=0.2(396)9.9-x=6.4(397)2.1x-1x=19.8(398)15x÷2=30(399)7-x=5.5(400)3.8x+4.5x+1.5=76.2(401)7x=63(402)2x÷14=0.9(403)11x÷99=2(404)69+6x=171(405)3x+46×3=249(406)1.4x-1.2x-0.2=11.6(407)14x-2x-27=93(408)2(3.4x+7.5)=49(409)x+5=68(410)22÷x=2(411)7x=2.1(412)10x+14x=312(413)0.3x=5.4(414)4x+8×2.3=27.6(415)79+x=166(416)2.8x-2.3x+2.5=15.5(417)4(5x-32)=152(418)98-7x=84(419)5x=195(420)3(9x+4)=174(421)x+13=50(422)x÷5=3.7(423)2.7x+2.1x-0.7=71.3(424)10x+5×0.7=20.5(425)8.6x-5.1x-1.3=16.2(426)49x-24x-3.9=43.6(427)(3.1x-5.4)÷16=1.6(428)35x÷15=0.7(429)x-34=59(430)x-5.9=1.1(431)8.9x+0.4x+0.8=75.2(432)168+4x=344(433)(2.1x+3)÷8=5.1(434)0.2x-2.2=11.2(435)71-16x=39(436)2(x+45)=138(437)2(0.6x+2.9)=16.6(438)157-18x=121(439)15x+2x=187(440)0.2x+4.7×2=17(441)7x+18x-35=240(442)(13x+7)÷11=16(443)7.2-x=4.4(444)(3x+8.1)÷11=5.1(445)1.3x=2.6(446)12.7-2.4x=7.9(447)2x+11×17=337(448)17x+9x=182(449)8.1x+3.7x=59(450)6x-2x-18=22(451)3x=90(452)(3.5x+4.3)÷2=35.4(453)4+x=36(454)0.4x+4.4×3=25.6(455)12x-59=85(456)7x+18x+34=184(457)7.9-x=5.4(458)x÷8=17(459)3x+15×0.8=15.6(460)66x-20x-1.4=40(461)6.3+26x=14.1(462)5x-2.1=7.9(463)x-5.4=2.9(464)5x-5×0.3=6.5(465)3(5x+6.2)=48.6(466)x÷13=9(467)2.4x+4.9x=131.4(468)2.9x+2.2x-2.1=135.6(469)18x+15x-38=28(470)17(2x-37)=187(471)17x-5x+29=77(472)7(2x-40)=126(473)x+32=130(474)7(0.8x-5.6)=28(475)0.4x=6.4(476)x÷3=1.2(477)9.4-7x=7.3(478)(x-10)÷15=1(479)30x÷36=5(480)4(0.2x-3.8)=22.4(481)19.3-0.3x=14.5(482)6÷x=2(483)10x÷2=45(484)3x+13x+2=226(485)9.7x+2.6x+4.9=115.6(486)34x=6.8(487)0.6x-2.7×4=7.2(488)3.3x+3.1=9.7(489)8x-35×4=52(490)3x+2.6=18.5(491)26x-19×2=118(492)65+x=160(493)3.3x-2.5x=2.4(494)9.7x+6.8x+1.2=67.2(495)0.5x+0.4×19=8.6(496)(3x-5)÷16=1(497)6(0.5x+3.2)=37.2(498)25x-3.3=1.7(499)28x+13=69(500)22x÷33=4(501)x÷8=1.5(502)4.5x-4.1x=8.4(503)28x÷8=0.7(504)2.7x-2.1x+4.9=10.9(505)15.4+17x=23.9(506)25x+4.5=19.5(507)x÷7=21(508)6.6x+4x-4.1=123.1(509)8.6x+4.5=21.7(510)x+37=51(511)1.7x+1.8x+2.5=121.5(512)4.9+2x=24.5(513)1.2x=8.4(514)9x+21×0.9=30.6(515)x+72=102(516)x÷92=2(517)5x+10x-13=47(518)18.8-6x=17.6(519)15.4-21x=11.2(520)8.2x+7.5x=157(521)23x+4x-1.8=92.7(522)8x=80(523)1.4x÷7=2.2(524)11x+72×2=298(525)18x-13x=10(526)15.2-10x=11.2(527)x+3.2=9.6(528)19.5÷x=1.5(529)1.3x=16.9(530)168÷x=3(531)x÷27=0.2(532)2.9x+0.8x-1.1=124.7(533)2(1.5x+0.9)=49.8(534)18.4-1x=8.4(535)6.2+16x=17.4(536)15x+2x=102(537)x÷25=0.5(538)0.4x÷13=0.8(539)6x-3x+49=94(540)7.7-x=5.1参考答案(1)x=20(2)x=57(3)x=3.5(4)x=7(5)x=64(6)x=40(7)x=23(8)x=0.8(9)x=51(10)x=8.8(11)x=9(12)x=18(13)x=0.2(14)x=1(15)x=8(16)x=28(17)x=7(18)x=5(19)x=9(20)x=96(21)x=33(22)x=15(23)x=4(24)x=1.4(25)x=9(26)x=14(27)x=57(28)x=0.9(29)x=6(30)x=3(31)x=2(32)x=7(33)x=7(34)x=0.4(35)x=0.6(36)x=8(37)x=12(38)x=3(39)x=21(40)x=6(41)x=14(42)x=7.6(43)x=10(44)x=4(45)x=6(46)x=7(47)x=3(48)x=0.5(49)x=98(50)x=76(51)x=0.6(52)x=98(53)x=12(54)x=3(55)x=2(56)x=32(57)x=18(58)x=1.6(59)x=7(60)x=39(61)x=22(62)x=0.8(63)x=20(64)x=65(65)x=33(66)x=21(67)x=3.6(68)x=97(69)x=1.2(70)x=3(71)x=11(72)x=28(73)x=2(74)x=19(75)x=9(76)x=39(77)x=31(78)x=105(79)x=0.2(80)x=22(81)x=8.7(82)x=4(83)x=41(84)x=3(85)x=20(86)x=7(87)x=7(88)x=7(89)x=9(90)x=180(91)x=5(92)x=17(93)x=7.7(94)x=2(95)x=3.6(96)x=8.2(97)x=72(98)x=1.6(99)x=87(100)x=5(101)x=3(102)x=3(103)x=11(104)x=36(105)x=63(106)x=54(107)x=3.5(108)x=0.8(109)x=1.5(110)x=20(111)x=1(112)x=0.8(113)x=3.7(114)x=11(115)x=35(116)x=3.4(117)x=9(118)x=19(119)x=3.3(120)x=44(121)x=4(122)x=9.3(123)x=10(124)x=14(125)x=2(126)x=6(127)x=0.7(128)x=2(129)x=8(130)x=26(131)x=3.7(132)x=11.4(133)x=9(134)x=1.4(135)x=0.3(136)x=10(137)x=2(138)x=0.3(139)x=4.1(140)x=54(141)x=0.9(142)x=2(143)x=0.3(144)x=11(145)x=8(146)x=3(147)x=21(148)x=24(149)x=2(150)x=13(151)x=29(152)x=8(153)x=81(154)x=3(155)x=12(156)x=11(157)x=3(158)x=2(159)x=1.5(160)x=7.6(161)x=8(162)x=9(163)x=2(164)x=12(165)x=94(166)x=20(167)x=7(168)x=75(169)x=37(170)x=1.5(171)x=9(172)x=3(173)x=5(174)x=7(175)x=7(176)x=13(177)x=13(178)x=65(179)x=12(180)x=6(181)x=16(182)x=1(183)x=25(184)x=44(185)x=5(186)x=2(187)x=45(188)x=10(189)x=23(190)x=11(191)x=6(192)x=3.2(193)x=10(194)x=0.2(195)x=15(196)x=6(197)x=15(198)x=9(199)x=9.1(200)x=2(201)x=77(202)x=2.2(203)x=0.8(204)x=19(205)x=12(206)x=9.8(207)x=0.3(208)x=4.1(209)x=5.9(210)x=65(211)x=6(212)x=12(213)x=10(214)x=1.1(215)x=9(216)x=34(217)x=4.4(218)x=0.5(219)x=6(220)x=3(221)x=0.8(222)x=28(223)x=20(224)x=11(225)x=10(226)x=37(227)x=40(228)x=12(229)x=2(230)x=54(231)x=0.2(232)x=27(233)x=21(234)x=26(235)x=3(236)x=0.2(237)x=0.9(238)x=6(239)x=6(240)x=91(241)x=5.5(242)x=0.4(243)x=2(244)x=3(245)x=16(246)x=12(247)x=15(248)x=19(249)x=34(250)x=9(251)x=0.2(252)x=0.3(253)x=4(254)x=18(255)x=6(256)x=10(257)x=3(258)x=0.6(259)x=44(260)x=0.4(261)x=82(262)x=21(263)x=9(264)x=21(265)x=0.6(266)x=5(267)x=7.8(268)x=5.8(269)x=93(270)x=3(271)x=22(272)x=2.5(273)x=9(274)x=9(275)x=18(276)x=11(277)x=29(278)x=14(279)x=19(280)x=3(281)x=6(282)x=4.8(283)x=12(284)x=7.9(285)x=1.4(286)x=23(287)x=9.1(288)x=1.3(289)x=6(290)x=3.9(291)x=1.1(292)x=2(293)x=3(294)x=5(295)x=4.9(296)x=6(297)x=50(298)x=0.2(299)x=0.5(300)x=1.9(301)x=26(302)x=0.9(303)x=6(304)x=4.3(305)x=0.6(306)x=6(307)x=5(308)x=0.4(309)x=47(310)x=3(311)x=0.2(312)x=13(313)x=3(314)x=2(315)x=15(316)x=28(317)x=0.3(318)x=10(319)x=0.2(320)x=23(321)x=14(322)x=9(323)x=7(324)x=21(325)x=1.6(326)x=7(327)x=6(328)x=2(329)x=0.3(330)x=1.4(331)x=2.5(332)x=19(333)x=7(334)x=2(335)x=51(336)x=4(337)x=0.7(338)x=6(339)x=10(340)x=2(341)x=1(342)x=0.3(343)x=12(344)x=1(345)x=73(346)x=1.8(347)x=4(348)x=66(349)x=5(350)x=9(351)x=0.6(352)x=25(353)x=9(354)x=6(355)x=2(356)x=9(357)x=0.6(358)x=0.7(359)x=12(360)x=12(361)x=0.2(362)x=6(363)x=11(364)x=12(365)x=4(366)x=10(367)x=77(368)x=23(369)x=0.8(370)x=13(371)x=17(372)x=1(373)x=5(374)x=0.9(375)x=7(376)x=5.4(377)x=9(378)x=89(379)x=1.8(380)x=5(381)x=3(382)x=55(383)x=78(384)x=0.5(385)x=13(386)x=4(387)x=0.2(388)x=5(389)x=5(390)x=5(391)x=6(392)x=4(393)x=0.2(394)x=2