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)8x+40×0.2=24(2)23+x=117(3)2(2x+2.6)=25.2(4)8x+2×3=22.8(5)5x+7×20=330(6)1.1+26x=11.5(7)2(21x-22)=124(8)4x+44=64(9)(1.7x-9)÷4=3.7(10)3x+1.7=16.7(11)76x÷8=1.9(12)(13x+22)÷33=5(13)6(1.7x-3.6)=9(14)14x+3x=221(15)18x-8x+2=72(16)x+69=112(17)4x+3x-41=99(18)7x+27=76(19)6x-2×39=120(20)x-70=22(21)x÷20=9(22)19x-9x+24=74(23)32x+31x+3.2=185.9(24)(14x+12)÷6=23(25)x+77=86(26)193-23x=147(27)(7.6x-6.2)÷18=4.3(28)4(2.4x-3.3)=6(29)65-x=31(30)44x+34=166(31)85-x=38(32)8.2+x=9.1(33)9x+11×0.7=18.5(34)x-67=29(35)1.8x+9.1x-4.5=71.8(36)16x÷8=18(37)x-5.8=4(38)2x+8×4=168(39)3(x-16)=54(40)164÷x=41(41)1.1x-0.9x-4=1.2(42)70x-42x-3.3=35.9(43)0.5x-2×3=8.5(44)7.1x-4.7x-4.5=14.7(45)2x÷11=1.4(46)22x-4×1.5=13.8(47)49+5x=84(48)54x+78x-1.5=104.1(49)x+84=123(50)(9x-35)÷14=11(51)15x+4x+2.4=74.6(52)9.6x-0.2x+2.4=58.8(53)4.6+x=9.4(54)8.1x=16.2(55)1.3x-0.6×2=13.1(56)2x+4×25=218(57)38x-13×0.2=12.6(58)3x+39×0.4=21.9(59)4.3x-1x-1.4=8.5(60)3x+4.7=13.7(61)8x-4x-2=74(62)7x+3.7=7.9(63)2x+3x-33=202(64)8x+21=221(65)4.6x+1.2x=58(66)(2.6x+7.6)÷5=6.2(67)1.1x+0.5×16=13.5(68)6.3-x=1.7(69)3x+33×2=159(70)13x-44=99(71)25x÷50=4(72)x-76=17(73)3x-3.4=3.2(74)23x-11x-3.6=46.8(75)x-5.9=1.1(76)4x+3.1=5.9(77)x+50=140(78)33x÷15=11(79)34x+2.3=12.5(80)5+x=12.5(81)64+x=104(82)2+5x=16(83)2.9x+0.4×8=17.7(84)2x+39=175(85)67+x=135(86)x÷6=3(87)2x-27=105(88)12(0.5x+2.3)=39.6(89)9x+20×1=39.8(90)8(8x-18)=112(91)16.2-0.5x=13.7(92)1.3x÷52=0.3(93)x+6.8=9.5(94)8.2-1.1x=4.9(95)7.4x=14.8(96)x+2.5=4.4(97)29x=58(98)(4.3x+4.4)÷14=4(99)10x-4×18=118(100)8x+9x+42=161(101)1.8x-1.1x=36.4(102)33+40x=193(103)17.1-0.3x=9.6(104)2x+5.6=23.6(105)8x-28=12(106)x÷16=0.7(107)34x+1.8=8.6(108)x-5.6=3.8(109)11(0.4x-3.9)=27.5(110)17.5-13x=13.6(111)2x÷20=3(112)2(13x-33)=90(113)x-3.8=6(114)8x-2x-22=92(115)3x÷6=2(116)19.8-11x=15.4(117)18.9÷x=2.7(118)15÷x=1(119)55-x=26(120)36x-7x-3.1=57.8(121)32x=64(122)81x+95x+3.3=108.9(123)18.6+4.8x=28.2(124)2(x+10)=38(125)50x-5x-3=24(126)14x+15×12=292(127)3x+12=135(128)13x+3x+38=230(129)x-4.1=5(130)26x=5.2(131)(6x+30)÷12=15(132)1.8x+3.3x=51(133)12.3+15x=31.8(134)12.3÷x=4.1(135)15.1+1.3x=24.2(136)9.2-x=4(137)17x-8x=99(138)x+4.6=12.9(139)160+2x=248(140)73x-5.3=9.3(141)15x-11x+24=56(142)0.4x+4.3×2=13(143)60x÷20=0.6(144)9(x-10)=153(145)6x+17x-33=128(146)11.7-4x=7.7(147)22x-19×3=31(148)3.5x-2.6x-1.5=14.7(149)8.2x-5.8x=24(150)10x-4.3=13.7(151)22x-3×6=158(152)7x+16×0.5=19.9(153)49-x=30(154)2(3x+22)=56(155)7x+3x=120(156)13.3-13x=1.6(157)3x+40×5=386(158)2(x-14)=64(159)33x=13.2(160)(10x+16)÷29=4(161)x÷30=0.4(162)1.2x+1.3=10.9(163)18+x=50(164)18x+3.1=22.9(165)(3.8x-6.4)÷25=0.2(166)8x+3x+16=203(167)6x-4x-35=21(168)13x-6x-6=43(169)(6x+1.2)÷22=0.6(170)0.8x-0.2x+0.9=24.3(171)11+0.6x=30.2(172)8.3x-3.6=13(173)53x-49x-3=1.4(174)2x=112(175)32+25x=107(176)93x-67x+0.8=21.6(177)1.1x-0.2x+0.2=18.2(178)7.2-x=6.5(179)4x+9x=26(180)8.1x+1.8x+0.4=59.8(181)14.8-6x=8.2(182)0.4x+2.4×7=33.6(183)4.1x=8.2(184)x÷2=2.7(185)5x÷2=3(186)2.6x+1.3x=97.5(187)9x+0.9x+2.7=52.2(188)1x+0.2×35=16(189)16+x=52(190)3x-19×7=14(191)26x÷52=0.3(192)2(2x-1.1)=9.8(193)0.3x+1.1×8=13(194)4.2x÷4=2.1(195)29x+43x+2.8=168.4(196)10x+18x+2=226(197)34x+17=187(198)4(0.3x+1.7)=16.4(199)9x=162(200)(x+20)÷8=4(201)19x-12x+3=45(202)(13x-46)÷2=55(203)4(0.6x+4.4)=32(204)1.5x-0.2x-0.6=34.5(205)12(x+9)=180(206)15.3÷x=1.7(207)4x=18(208)124-16x=12(209)0.7x+2.8=21(210)x+12=42(211)9x+41x+4.5=109.5(212)13x-4x=135(213)0.3x-3.9=14.1(214)9x-2.5=17.3(215)13+1.7x=26.6(216)4.3+0.7x=8.5(217)96x+23x-2.5=104.6(218)3x-58=68(219)9.6÷x=4.8(220)(6x-4)÷20=4(221)2x=10.4(222)6x÷15=4(223)8x-5x+15=36(224)(17x-14)÷3=35(225)2(4x+29)=106(226)1.4x÷12=0.7(227)12(0.3x-9.7)=45.6(228)84÷x=7(229)2x÷5=1.6(230)1.3x-1.5×10=4.5(231)9+x=12.5(232)3x=18(233)24x-17x-4.2=16.8(234)3x+15x-45=135(235)6x+18x+45=141(236)7.1x+5.5x+2.7=153.9(237)(16x-16)÷22=8(238)20x÷6=10(239)x-4.7=4.4(240)7x-26=107(241)54÷x=18(242)x+8.7=14.2(243)1.3x-0.6x+2.6=18(244)8x-6x=18(245)152-2x=90(246)5+27x=18.5(247)21x-47=37(248)x+1.6=4.2(249)97-x=57(250)77-x=33(251)6x+2x-10=190(252)31x+67x-2=27.4(253)13+35x=23.5(254)0.3x+5.2x=22(255)(9x-48)÷10=6(256)2x+7x-37=53(257)x÷4=25(258)34x-3×0.4=9(259)178-12x=106(260)19x-7x=72(261)14x+10=178(262)9.1-0.3x=6.7(263)8x-5x-41=13(264)12x-1.4=1(265)2x+3x=130(266)2.3x+1.9x=50.4(267)x+67=135(268)2.7+x=12.6(269)13x-5.6=13.9(270)(2.3x-6.6)÷3=2.4(271)44x+84x-3.1=99.3(272)13x+8x+4.9=74.2(273)6x-16×0.5=1.6(274)(7.9x+0.4)÷3=29.1(275)7.9x-7.2x=8.4(276)4.9x=19.6(277)12.6-0.2x=5.6(278)15x-2x=143(279)2.4x+5.9x-3=96.6(280)5(0.2x+7.2)=44(281)146-3x=41(282)(9.7x-7.5)÷3=7.2(283)9.8-x=4.2(284)2(4.1x+1)=43(285)3x+5.4=9.9(286)5.7+x=14.4(287)4x+12=128(288)14(x+10)=168(289)28+x=48(290)9.8-x=5.6(291)2.3x+4.1x-1.7=100.7(292)2x=17.6(293)16x+4x+21=61(294)x÷20=4(295)2.4x-0.3×15=7.5(296)3x=12(297)2.8x-3.8×3=8.2(298)26x-9x+1.4=6.5(299)2.3x-5.8=1.1(300)x-10=30(301)4.2x-4.3=8.3(302)(3.4x-4)÷3=6.6(303)5x=9.5(304)x÷62=3(305)84÷x=21(306)11x-3×6=59(307)x÷54=0.3(308)8.6x+5.9x-3=127.5(309)129-3x=51(310)3x+5×23=190(311)0.7x+8.4x+0.5=82.4(312)7.7x-0.4x=21.9(313)7.4+0.2x=9.2(314)19x+17x=72(315)8x+3.3=5.7(316)5.4x-4.3x-3.5=3.1(317)(x+2)÷8=3(318)(2.9x+8.9)÷3=4.9(319)61-x=29(320)8x-6x+1.8=9.4(321)(8.1x+7.5)÷6=16.1(322)11x+12x=138(323)1x+4.3=22.3(324)3.6÷x=1.8(325)(3.9x+2.7)÷12=6.4(326)x+42=72(327)9.9x+3.4x+2.1=28.7(328)x+0.3=9.4(329)0.3x÷21=0.9(330)2x+18x-46=74(331)x-2.3=7.1(332)70x-11x-1.8=51.3(333)x÷7=8(334)x-4=1.9(335)3.1x-0.3x-0.8=24.4(336)24+x=78(337)(16x-24)÷4=54(338)6.9x-2.3x=13.8(339)96+x=188(340)11x+8x=247(341)2.7x-1.7x=7(342)15x÷6=5(343)58x=11.6(344)6x-3x+36=60(345)0.5x-5=4(346)7x+88x-0.7=46.8(347)17.2-18x=8.2(348)5x+2×95=355(349)22x-7×24=30(350)40+2x=62(351)0.2+x=3.1(352)(11x+49)÷5=23(353)1.3+0.5x=2.3(354)109+4x=161(355)120÷x=24(356)2(1.9x+4.9)=47.8(357)x+9.7=10.8(358)(11x-28)÷2=52(359)50+33x=116(360)0.3x-0.3×25=6.9(361)(1.6x-9)÷26=0.7(362)x+4.6=5.3(363)(13x-34)÷19=3(364)(8.7x+7.5)÷3=22.8(365)84x-54=114(366)14x-46=122(367)x÷63=0.2(368)x+13=97(369)x-31=22(370)158-6x=38(371)54x+21x-0.3=104.7(372)40x-22x-0.7=20.9(373)92-x=26(374)1.5x+3x=99(375)3(2.4x+6.7)=48.9(376)37x-19x+0.7=22.3(377)79+7x=114(378)(3.8x+8.4)÷18=3(379)0.3x+1.3x-2.2=50.6(380)18.4-2x=15.2(381)0.9x-5=10.3(382)6x+6×3=33(383)23x=9.2(384)6x÷54=2(385)x-5=22(386)8.6x-1.2x=81.4(387)9.4+4x=13.8(388)2x+5x+27=300(389)21x+14x+0.8=133.8(390)10.9+5.5x=21.9(391)98+6x=158(392)0.3x-2.5=13.4(393)2(1.1x-8.5)=5(394)4.9x+1.7x-3.5=121.9(395)87x-63x+3.5=17.9(396)2x-38=44(397)6x-3.5x+1.9=26.9(398)12x+7×9=195(399)(10x-20)÷7=20(400)5x-2x-48=30(401)x-53=44(402)2(x+28)=98(403)8.5-x=2.2(404)8.9-x=1.9(405)12.6÷x=0.6(406)22x-43×0.3=4.7(407)3(x+12)=51(408)44x-12x+2.2=34.2(409)2(7x+33)=136(410)x÷22=0.7(411)5.2x-3.9x=19.5(412)47x-5.1=9(413)189-36x=81(414)88x-37x+4.8=60.9(415)14.3-3x=12.2(416)8.1x-0.8x+4.2=84.5(417)70÷x=10(418)9.9+x=16.8(419)14-0.2x=10(420)x÷8=0.6(421)2x÷32=0.3(422)83-x=81(423)14x-4x+41=121(424)4+3x=7.3(425)83x-10x+4.9=48.7(426)36x=72(427)8x-5x+16=70(428)4x÷88=2(429)69x+28x-2.5=84.8(430)1.8x-2.1×6=7.2(431)5(21x-47)=80(432)9x-7x=36(433)60x-28x+4.5=17.3(434)7x+10x+22=345(435)0.5x+0.2x-0.8=33.5(436)3.7x=18.5(437)14.7-0.2x=11.9(438)5.7x+4.1=15.5(439)1.3x-5.1=4(440)5(7x-48)=110(441)7x+8x=285(442)x-2.5=1.9(443)12.5-11x=3.7(444)(13x+47)÷15=17(445)0.7x+4.4=21.9(446)7.8-x=5.9(447)2.7÷x=0.9(448)1.9x+5.8x+4.4=73.7(449)4.1+x=10.2(450)39x-5.3=6.4(451)3(2x+13)=93(452)x÷7=2.2(453)7.2x-6.9x+2.2=3.4(454)2x+4x-21=189(455)7x-2×3=12.2(456)4x-42×2=28(457)46x=18.4(458)4x-4×21=44(459)11x-5x-47=31(460)0.6x÷36=0.5(461)16x+3x-28=67(462)2x-15×0.4=2.6(463)x÷2=5(464)5.6x+7x-4.2=121.8(465)2.5x-1.2×6=5.3(466)58+x=156(467)171-3x=99(468)9x-3x-49=41(469)15+11x=24.9(470)x÷42=2(471)3.1x+0.6×33=38.4(472)4x+8.4x=124(473)0.2x÷5=1.6(474)0.2x+0.8x=79(475)6(0.4x-0.3)=46.2(476)x÷48=2(477)x+67=142(478)2x+5.4=14(479)0.5x+3x-2.7=32.3(480)6(0.2x+0.8)=18(481)9.2÷x=0.2(482)x+5.5=13.9(483)10(0.4x-9.3)=19(484)9x-2×2.7=1.8(485)20(1.5x-9.6)=48(486)17x-7x=80(487)12x-2.9=5.5(488)83x-78x-0.5=2.5(489)18x=144(490)5.4-x=4.8(491)44x+51x-4.3=24.2(492)3(4x-26)=42(493)2.2+6.7x=15.6(494)7.9x-7.3x=1.8(495)44÷x=2(496)37x+24x+4.3=59.2(497)8.1x+2.5x=95.4(498)(3.4x-1)÷5=10(499)110÷x=2(500)90÷x=3(501)9.7x+7x+2.2=85.7(502)0.5x=4.5(503)0.2x+2.3×5=18.7(504)0.4x-0.6×12=8.8(505)9x+10x+1.2=153.2(506)47x+17×1.1=32.8(507)25x÷50=0.3(508)5x-2x=27(509)9x-6x-14=22(510)8.4-1x=3.4(511)6x=72(512)15.3-1.5x=3.3(513)0.3x-3.2=3.7(514)5x=45(515)13x=117(516)0.3x+0.6x+4.1=79.7(517)43x+18x-4.3=87.2(518)0.3x+6.1x+3.5=41.9(519)2.4x-0.7x-2.4=23.1(520)x-26=40(521)x÷10=1.7(522)52x÷4=3.9(523)1x÷22=0.5(524)x-8=48(525)4x-3×0.7=12.7(526)0.4x+1.2×2=7.2(527)0.4x+1.7=15.7(528)(19x+30)÷37=8(529)3x+9×1.6=20.4(530)4.8x+5.4=15(531)8x÷5=3.2(532)5x+14x=190(533)8x-4x+13=81(534)16x+8x+9=81(535)1.3x-0.4x-0.7=23.6(536)1.9x-1.6x+4.4=14.9(537)9.4+17x=19.6(538)0.2x=7.6(539)13x-5x=120(540)1.8x-1.4x+4.5=26.1参考答案(1)x=2(2)x=94(3)x=5(4)x=2.1(5)x=38(6)x=0.4(7)x=4(8)x=5(9)x=14(10)x=5(11)x=0.2(12)x=11(13)x=3(14)x=13(15)x=7(16)x=43(17)x=20(18)x=7(19)x=33(20)x=92(21)x=180(22)x=5(23)x=2.9(24)x=9(25)x=9(26)x=2(27)x=11(28)x=2(29)x=34(30)x=3(31)x=47(32)x=0.9(33)x=1.2(34)x=96(35)x=7(36)x=9(37)x=9.8(38)x=68(39)x=34(40)x=4(41)x=26(42)x=1.4(43)x=29(44)x=8(45)x=7.7(46)x=0.9(47)x=7(48)x=0.8(49)x=39(50)x=21(51)x=3.8(52)x=6(53)x=4.8(54)x=2(55)x=11(56)x=59(57)x=0.4(58)x=2.1(59)x=3(60)x=3(61)x=19(62)x=0.6(63)x=47(64)x=25(65)x=10(66)x=9(67)x=5(68)x=4.6(69)x=31(70)x=11(71)x=8(72)x=93(73)x=2.2(74)x=4.2(75)x=7(76)x=0.7(77)x=90(78)x=5(79)x=0.3(80)x=7.5(81)x=40(82)x=2.8(83)x=5(84)x=68(85)x=68(86)x=18(87)x=66(88)x=2(89)x=2.2(90)x=4(91)x=5(92)x=12(93)x=2.7(94)x=3(95)x=2(96)x=1.9(97)x=2(98)x=12(99)x=19(100)x=7(101)x=52(102)x=4(103)x=25(104)x=9(105)x=5(106)x=11.2(107)x=0.2(108)x=9.4(109)x=16(110)x=0.3(111)x=30(112)x=6(113)x=9.8(114)x=19(115)x=4(116)x=0.4(117)x=7(118)x=15(119)x=29(120)x=2.1(121)x=2(122)x=0.6(123)x=2(124)x=9(125)x=0.6(126)x=8(127)x=41(128)x=12(129)x=9.1(130)x=0.2(131)x=25(132)x=10(133)x=1.3(134)x=3(135)x=7(136)x=5.2(137)x=11(138)x=8.3(139)x=44(140)x=0.2(141)x=8(142)x=11(143)x=0.2(144)x=27(145)x=7(146)x=1(147)x=4(148)x=18(149)x=10(150)x=1.8(151)x=8(152)x=1.7(153)x=19(154)x=2(155)x=12(156)x=0.9(157)x=62(158)x=46(159)x=0.4(160)x=10(161)x=12(162)x=8(163)x=32(164)x=1.1(165)x=3(166)x=17(167)x=28(168)x=7(169)x=2(170)x=39(171)x=32(172)x=2(173)x=1.1(174)x=56(175)x=3(176)x=0.8(177)x=20(178)x=0.7(179)x=2(180)x=6(181)x=1.1(182)x=42(183)x=2(184)x=5.4(185)x=1.2(186)x=25(187)x=5(188)x=9(189)x=36(190)x=49(191)x=0.6(192)x=3(193)x=14(194)x=2(195)x=2.3(196)x=8(197)x=5(198)x=8(199)x=18(200)x=12(201)x=6(202)x=12(203)x=6(204)x=27(205)x=6(206)x=9(207)x=4.5(208)x=7(209)x=26(210)x=30(211)x=2.1(212)x=15(213)x=60(214)x=2.2(215)x=8(216)x=6(217)x=0.9(218)x=42(219)x=2(220)x=14(221)x=5.2(222)x=10(223)x=7(224)x=7(225)x=6(226)x=6(227)x=45(228)x=12(229)x=4(230)x=15(231)x=3.5(232)x=6(233)x=3(234)x=10(235)x=4(236)x=12(237)x=12(238)x=3(239)x=9.1(240)x=19(241)x=3(242)x=5.5(243)x=22(244)x=9(245)x=31(246)x=0.5(247)x=4(248)x=2.6(249)x=40(250)x=44(251)x=25(252)x=0.3(253)x=0.3(254)x=4(255)x=12(256)x=10(257)x=100(258)x=0.3(259)x=6(260)x=6(261)x=12(262)x=8(263)x=18(264)x=0.2(265)x=26(266)x=12(267)x=68(268)x=9.9(269)x=1.5(270)x=6(271)x=0.8(272)x=3.3(273)x=1.6(274)x=11(275)x=12(276)x=4(277)x=35(278)x=11(279)x=12(280)x=8(281)x=35(282)x=3(283)x=5.6(284)x=5(285)x=1.5(286)x=8.7(287)x=29(288)x=2(289)x=20(290)x=4.2(291)x=16(292)x=8.8(293)x=2(294)x=80(295)x=5(296)x=4(297)x=7(298)x=0.3(299)x=3(300)x=40(301)x=3(302)x=7(303)x=1.9(304)x=186(305)x=4(306)x=7(307)x=16.2(308)x=9(309)x=26(310)x=25(311)x=9(312)x=3(313)x=9(314)x=2(315)x=0.3(316)x=6(317)x=22(318)x=2(319)x=32(320)x=3.8(321)x=11(322)x=6(323)x=18(324)x=2(325)x=19(326)x=30(327)x=2(328)x=9.1(329)x=63(330)x=6(331)x=9.4(332)x=0.9(333)x=56(334)x=5.9(335)x=9(336)x=54(337)x=15(338)x=3(339)x=92(340)x=13(341)x=7(342)x=2(343)x=0.2(344)x=8(345)x=18(346)x=0.5(347)x=0.5(348)x=33(349)x=9(350)x=11(351)x=2.9(352)x=6(353)x=2(354)x=13(355)x=5(356)x=10(357)x=1.1(358)x=12(359)x=2(360)x=48(361)x=17(362)x=0.7(363)x=7(364)x=7(365)x=2(366)x=12(367)x=12.6(368)x=84(369)x=53(370)x=20(371)x=1.4(372)x=1.2(373)x=66(374)x=22(375)x=4(376)x=1.2(377)x=5(378)x=12(379)x=33(380)x=1.6(381)x=17(382)x=2.5(383)x=0.4(384)x=18(385)x=27(386)x=11(387)x=1.1(388)x=39(389)x=3.8(390)x=2(391)x=10(392)x=53(393)x=10(394)x=19(395)x=0.