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)(4x-36)÷2=6(2)(7x+22)÷45=5(3)4(x-8)=92(4)3(x+36)=129(5)(7.4x+0.8)÷19=1.6(6)x÷13=1(7)x-4.1=1.8(8)32x+18x-1.7=138.3(9)10x-4x+3.3=7.5(10)2x=94(11)150+80x=310(12)4x+2×7=86(13)3.7x+3.3=14.4(14)4x÷6=1(15)0.4x÷8=2.2(16)x-29=21(17)79-2x=27(18)44x+13x-0.5=33.7(19)20x÷5=3.6(20)x-31=53(21)4.4x-2.2x+1.9=30.5(22)17x-3x-23=89(23)2(2x-40)=76(24)(7x-24)÷6=3(25)23x+27x-1.2=8.8(26)57x=171(27)5x-34×2=92(28)0.4x+8x=42(29)0.4x-4.3=7.3(30)x-6.2=2.7(31)2(x+11)=32(32)45x+35x+3.3=147.3(33)3.1+x=9.1(34)5x+6x-13=31(35)144-5x=59(36)x+6.2=11.8(37)3x+9x=204(38)6.3x-4.8x+1.7=7.7(39)98+7x=273(40)10x-6x=72(41)19x-3x+22=134(42)x+7.8=13.2(43)4x-2x=30(44)2(5x-5.3)=9.4(45)(4.7x-4.6)÷16=5(46)14x-9x=15(47)198-15x=153(48)10x+4x+46=312(49)89-x=86(50)(9x-4)÷23=10(51)6x=15.6(52)(5.8x+9.4)÷14=4.4(53)4x÷80=0.2(54)78-x=49(55)2.4x-5.1=6.9(56)0.4x=13.2(57)64x-2.9=16.3(58)x+17=100(59)(4.5x-4.7)÷28=1.6(60)8(0.5x+3.7)=45.6(61)37+50x=137(62)x-66=20(63)0.5x+0.6×8=5.8(64)45x+5.2=18.7(65)3.9x+3.3x-1.8=113.4(66)3(0.5x+6.2)=41.1(67)5x+6x=253(68)5x+3x-9=143(69)2x÷26=5(70)4.5x+0.2x=37.6(71)88x+4x-4.2=78.6(72)55+x=108(73)10(0.2x-5.7)=41(74)65-2x=43(75)9.4x+9.8x+2.3=40.7(76)42x-6x-3.3=29.1(77)x÷21=0.2(78)50x÷5=3(79)(5x+4)÷21=4(80)8.9x+8.3x+4.3=55.9(81)14.2-4x=8.6(82)44x-8x-2.2=30.2(83)0.2x÷4=3.2(84)7(1.1x-6.4)=32.2(85)x÷3=4.4(86)6.8x-1.2x=56(87)8.4+0.2x=16.8(88)0.2x=15.2(89)6x-2.5x+3.2=10.2(90)3.5x+5.5x+2.8=101.8(91)12.8+2x=24.8(92)19.4+2.2x=39.2(93)27x-47×2=68(94)79+x=123(95)0.7x=2.8(96)7.2-2x=4(97)7x-5×2.1=5.6(98)x+1.1=9.5(99)(4.1x-7.9)÷8=6.7(100)11x-5x=24(101)190÷x=10(102)(9.6x-8.8)÷8=3.7(103)17+x=42(104)14x+22×0.2=14.2(105)13x-4x+2=128(106)3x=15.9(107)7x-2x=65(108)47x+34=175(109)5x=165(110)x÷25=3(111)5.2x+0.6x+2.7=78.1(112)(5x-13)÷8=4(113)66x+26x-4.5=41.5(114)3x+4×25=256(115)x+50=141(116)3x=15.6(117)13.9-3x=5.2(118)4.3x+9.7x+0.3=98.3(119)92÷x=46(120)9.3-x=2.1(121)x-0.4=9(122)1x-5.9=8.1(123)69-x=30(124)(12x-26)÷2=29(125)190-35x=85(126)3.7x+2x-3.3=59.4(127)96-x=14(128)129+37x=314(129)x+21=58(130)5x-4=4(131)4.4÷x=0.2(132)x÷2=6(133)118+16x=262(134)18x-11×8=110(135)76-x=64(136)(3x+14)÷7=5(137)21x=16.8(138)(8.7x-7.8)÷6=1.6(139)x+7.8=16.1(140)x÷84=0.2(141)52+x=138(142)15x-8x-22=13(143)2x-50=34(144)x÷7=28(145)5x+15x=80(146)6.1x+3x+3.5=149.1(147)34x+3.1=20.1(148)69x-59x+3.1=12.1(149)2÷x=0.5(150)4x-2x-18=40(151)6x+2.6=17.6(152)125÷x=25(153)3x=108(154)17x-6x-11=22(155)92-x=79(156)6x+76×2=284(157)8x=1.6(158)14x-5x=27(159)1.1x-0.6x-1.2=27.3(160)3x-3.2=11.5(161)4(0.5x+2.7)=26.8(162)167-3x=11(163)11x+7x=252(164)13x+15x=336(165)4x+36=216(166)1.1+2.1x=11.6(167)11(2x+4)=88(168)4.4-x=3.8(169)x-4.7=1(170)14.3-2x=1.5(171)10x-3x-2=117(172)5.2+8x=11.6(173)14.5+72x=28.9(174)6.5x+5.6x=181.5(175)8.6+80x=24.6(176)x-1.8=2.8(177)2.5x+1.7x=42(178)5.5-x=3.7(179)20x+35=155(180)9x+64x-1.4=71.6(181)16.7+2x=26.7(182)0.8x+2=12.4(183)1x-0.8×6=9.2(184)x÷4=4(185)4x-3.3=11.1(186)4x+0.3x=60.2(187)7.5x-1.2x=25.2(188)2.1+1.4x=7.7(189)(9x-18)÷9=6(190)8.7x-1.1x=15.2(191)8.3x-0.2x+2.6=51.2(192)3.2x+0.4×12=17.6(193)x-26=42(194)9.4x-8.2x-0.3=10.5(195)(7.6x+7.1)÷7=9.7(196)154-29x=67(197)9(10x-14)=144(198)1.2x-0.8x-4.9=19.9(199)8x+3.5=11.5(200)13x+16x=58(201)0.5x=2.5(202)13x-11x-4.9=7.7(203)0.2x-3.4=2.4(204)43-x=23(205)1x-1.9×7=5.7(206)0.8x÷2=4.4(207)14.1-0.2x=5.3(208)3.3x-2.5x-3.9=5.7(209)2.5x=20(210)7.7-1.3x=1.2(211)12x+5x+3.5=44.3(212)x-9=70(213)15.2+11x=32.8(214)0.5x+3.6=20.6(215)5.9-x=5.7(216)9x+4.1=21.2(217)28x÷4=42(218)67+2x=123(219)6x+10x-18=126(220)2(0.7x+7.8)=45(221)x-2.7=5(222)20x-8x-3.4=15.8(223)(4.7x+1.5)÷6=7.3(224)17x+15=83(225)3(9.8x-4)=46.8(226)6x-2.2=2(227)4.4x+2.6x+4.5=46.5(228)2.3x-1.5×2=6.2(229)0.3x-0.3×24=3.9(230)7x+15x+37=301(231)17.2-0.2x=14.6(232)5x-0.8x-2.5=35.3(233)(8.1x-6.7)÷8=2.2(234)3x÷45=0.2(235)2x÷42=3(236)0.3x+1.9×8=25.4(237)(3x-5)÷2=15.5(238)0.4x-5.3=9.9(239)x÷3=5(240)0.7x+1×13=16.5(241)91-x=76(242)x+1.5=3.1(243)2.5x+2.5=12.5(244)19x-7x=108(245)x+4.3=13.6(246)4x+3x+12=89(247)5.9+21x=22.7(248)x÷6=7(249)9.4+x=14.2(250)(16x+10)÷2=85(251)2(x+8.6)=29.2(252)20x-5x+1.2=32.7(253)(6x-1.8)÷38=0.9(254)3(8x-20)=84(255)74÷x=2(256)15x+10x+47=272(257)(1.5x+3.3)÷13=2.1(258)21x-2=6.4(259)x÷54=3(260)33+4x=225(261)4.2x-0.6×12=1.2(262)3x+2x=280(263)1.2+x=8(264)1.6x-1.4x=3.4(265)5x+16=126(266)4x+13x+6=57(267)(0.9x+3.8)÷22=0.5(268)13+4x=141(269)26x=78(270)5x-12=13(271)18.1+0.2x=33.1(272)2.6x-0.9x=35.7(273)x÷38=0.2(274)19x+5.4=22.5(275)11.7-2x=5.1(276)6.8+x=9.7(277)13x+6×24=248(278)x÷13=0.6(279)1.2x+0.6×13=16.2(280)4.6x+6.6x-3.7=52.3(281)9x=15.3(282)17x÷4=34(283)8x-12×0.9=6.8(284)2x+8x-11=209(285)87+x=166(286)15.6+0.2x=32.6(287)x+5=66(288)x+7=51(289)22x-6×8=150(290)2.1x+0.9x-3.2=113.8(291)4x+31×4=184(292)10x-3x=140(293)8x-8×0.6=4.8(294)4.3x-3.2x+1.6=24.7(295)x+8=73(296)(7x+20)÷5=39(297)5(1.3x-3.4)=15.5(298)0.4x+5.8=11.8(299)128÷x=32(300)x-2.6=1.1(301)2(1.1x+1.9)=47.8(302)6x-2=6.4(303)15.5-1x=13.5(304)70x+44x+0.4=46(305)9.6-3.9x=1.8(306)28x-7×1=12.6(307)12x+10x-31=35(308)8.2x=16.4(309)64x-41x+1.6=15.4(310)3(2.2x+5.5)=36.3(311)5.7-x=4.1(312)8.9-0.3x=3.8(313)4x=164(314)2.4÷x=0.2(315)8x-4x+26=66(316)25x+7×1.1=25.2(317)2.5x-2=18(318)x-4.3=3.8(319)x÷30=0.6(320)x+43=48(321)4.9+x=12.7(322)14.8-23x=10.2(323)16x=16(324)4x-43=57(325)58+x=128(326)5x+10x=195(327)2x-37=81(328)6.8x-2.1x-0.5=8.9(329)7x+2x=54(330)78x-41x+2.5=43.2(331)4(0.8x-7.9)=6.8(332)5(0.3x-5.3)=21.5(333)1x-3.3=6.7(334)1.9x-0.7x-2.1=29.1(335)(2x+41)÷3=21(336)56÷x=28(337)2.8+3.1x=9(338)5x+12x+0.9=119.9(339)14.3÷x=1.1(340)2.7+x=8.4(341)2(9x+23)=154(342)3x-30=90(343)12x-7×13=89(344)7x-4x=78(345)42x+29x-4.6=38(346)16x-12x+40=76(347)5.8x+4.9x-3.5=60.7(348)6.4-x=3.6(349)(0.6x+5.5)÷5=2.9(350)2.1x-1.7x=9.6(351)77x-3x-4.2=40.2(352)17x+10×13=317(353)(9x+2)÷25=8(354)18x÷4=45(355)5(3x+4)=140(356)30x÷6=1.5(357)20x÷8=10(358)15(6x-8)=150(359)5.6÷x=0.4(360)8.8x-4.7x+2.7=10.9(361)4.5x-3.3x-0.9=25.5(362)60x-40x+4.7=18.7(363)2x+5×2.3=12.3(364)5.4÷x=0.6(365)10.2+48x=24.6(366)10x÷32=0.5(367)(6.4x+9)÷26=3.3(368)3(15x+8)=114(369)2(0.3x+1.6)=20(370)14.4+5x=15.9(371)10x-3x+18=74(372)2x+9x-0.2=88.9(373)0.2x+1.5=7.3(374)(6x+22)÷7=28(375)49x-17x-0.9=11.9(376)4x-18×8=12(377)x-29=40(378)3x-1.7=3.4(379)1.7x+1.3x=99(380)9÷x=3(381)196-10x=56(382)4.8x-3x=16.2(383)70x-17x+0.6=27.1(384)4.4+2x=8.8(385)0.4x÷28=0.5(386)0.5x+0.6×22=20.7(387)18x-2x+30=158(388)15x+34=229(389)8+x=14.2(390)47-x=35(391)0.6x+2=3.8(392)0.3x-0.7×2=2.5(393)4.8x÷24=0.8(394)6.2x-4.8x+3.3=14.5(395)2(6x+29)=82(396)1.7x-0.8x-2.8=17.9(397)12x+35=203(398)12x+19x+17=203(399)8.3x+2.8x=44.4(400)3x-2×3.4=1.6(401)3.7x+0.3×22=21.4(402)0.5x÷95=0.2(403)13.6÷x=3.4(404)25x+17×1.1=33.7(405)2(0.9x+2.2)=33.2(406)3x+19x-47=173(407)16x+4.3=21.9(408)9x+30×0.3=10.8(409)x-0.7=4.5(410)0.7x+8x+2.9=72.5(411)10x+35=135(412)97x+68x+4.8=120.3(413)6x-14=178(414)34x+12×0.8=23.2(415)(12x-20)÷8=2(416)38x-36×0.4=4.6(417)5.7-4x=1.7(418)x+66=155(419)97x+93x+4.2=42.2(420)0.2x-3.7=13.3(421)18x-30×0.3=1.8(422)8.1x+9.9x+4.8=40.8(423)9.5x-5.7x+1.6=32(424)66x÷22=6(425)7x=35(426)3(4x-3)=63(427)24+x=42(428)0.8x+3.8×2=20.4(429)125-10x=105(430)27x-15x-2=20.8(431)9.9x+5.9=25.7(432)165÷x=3(433)129÷x=43(434)8x+1.7x-3.4=83.9(435)6x-3x-30=66(436)8x+12x+2.1=160.1(437)3.7x+4.1x-4=50.6(438)4.5x-0.2×21=13.8(439)13x-7x-19=71(440)x-61=23(441)22x-3x+4.7=29.4(442)65x-38=92(443)12x-5x-0.2=48.1(444)5+x=5.9(445)6x+2x-3.2=36.8(446)8x+87x+4.7=109.2(447)3(3x+2)=69(448)2x+5x+27=146(449)6(0.5x-5.9)=6.6(450)3x-2×51=66(451)4.9x+0.7x=100.8(452)6.3-x=4.5(453)6x=1.2(454)10x+2x+8=44(455)(13x+14)÷40=1(456)x+6.2=10.6(457)2.4x-0.9x=60(458)x+4.9=5.3(459)4.1+0.2x=13.7(460)73x-17x+3.2=20(461)16x-2x-5=121(462)61x+22=144(463)9x+5.7=16.5(464)4x=92(465)(4.5x-2)÷10=5.2(466)14.4-4x=12.4(467)15x-7x+20=116(468)2(2x-21)=134(469)x-42=48(470)x+2=10.1(471)0.4x+2.7=21.9(472)39x+4×1.5=13.8(473)2(0.4x-0.5)=36.6(474)58x-10=164(475)(11x-26)÷13=9(476)4x+13×8=236(477)12÷x=0.5(478)23x-7×4=64(479)30x+4×2.8=20.2(480)35x-1=16.5(481)7x+14×11=189(482)3x+14x-24=146(483)2x÷12=11(484)9x+10×1.5=26.7(485)x÷35=2(486)0.7x÷42=0.4(487)85÷x=17(488)2x-52=18(489)(11x+26)÷4=45(490)1.1x-1.8=2.6(491)8.9-x=4.3(492)9x=108(493)4x+12x+47=79(494)x+34=102(495)9.8x-1.6x+2.2=76(496)0.3x+1.4×6=18.3(497)149+63x=275(498)x-20=39(499)10+x=55(500)3x÷5=3.9(501)21x-8×1.7=3.2(502)8x-6x+38=70(503)8.1-9x=5.4(504)2x÷10=1.4(505)3.4x-0.4×33=3.8(506)x÷2=0.9(507)8.6+x=11.5(508)7.8-0.2x=3.8(509)54x+41x+2.2=68.7(510)7x-3x-41=59(511)7.4x=14.8(512)x÷7=1.4(513)10x+9x-41=263(514)32x-2×0.8=17.6(515)9.9x-5.4x=36(516)8.9x+7.8x=33.4(517)2x+2.4=9(518)(18x-6)÷23=6(519)2x-4×22=90(520)8(6x-41)=200(521)8.8-x=3.5(522)40x-12x-1.2=26.8(523)5x+10x-35=25(524)12x÷9=0.8(525)x÷41=2(526)46x÷23=0.6(527)7x+5×21=238(528)2(3x+25)=122(529)1.1x+6.6x-1=14.4(530)1.8x=18(531)2x+65x-4.2=56.1(532)12x-5x+33=54(533)18x÷48=3(534)5(14x-36)=170(535)4.9x-1×16=3.6(536)11.4-0.2x=1.2(537)45+x=131(538)46x=9.2(539)8.1-0.2x=2.7(540)1.2x=9.6参考答案(1)x=12(2)x=29(3)x=31(4)x=7(5)x=4(6)x=13(7)x=5.9(8)x=2.8(9)x=0.7(10)x=47(11)x=2(12)x=18(13)x=3(14)x=1.5(15)x=44(16)x=50(17)x=26(18)x=0.6(19)x=0.9(20)x=84(21)x=13(22)x=8(23)x=39(24)x=6(25)x=0.2(26)x=3(27)x=32(28)x=5(29)x=29(30)x=8.9(31)x=5(32)x=1.8(33)x=6(34)x=4(35)x=17(36)x=5.6(37)x=17(38)x=4(39)x=25(40)x=18(41)x=7(42)x=5.4(43)x=15(44)x=2(45)x=18(46)x=3(47)x=3(48)x=19(49)x=3(50)x=26(51)x=2.6(52)x=9(53)x=4(54)x=29(55)x=5(56)x=33(57)x=0.3(58)x=83(59)x=11(60)x=4(61)x=2(62)x=86(63)x=2(64)x=0.3(65)x=16(66)x=15(67)x=23(68)x=19(69)x=65(70)x=8(71)x=0.9(72)x=53(73)x=49(74)x=11(75)x=2(76)x=0.9(77)x=4.2(78)x=0.3(79)x=16(80)x=3(81)x=1.4(82)x=0.9(83)x=64(84)x=10(85)x=13.2(86)x=10(87)x=42(88)x=76(89)x=2(90)x=11(91)x=6(92)x=9(93)x=6(94)x=44(95)x=4(96)x=1.6(97)x=2.3(98)x=8.4(99)x=15(100)x=4(101)x=19(102)x=4(103)x=25(104)x=0.7(105)x=14(106)x=5.3(107)x=13(108)x=3(109)x=33(110)x=75(111)x=13(112)x=9(113)x=0.5(114)x=52(115)x=91(116)x=5.2(117)x=2.9(118)x=7(119)x=2(120)x=7.2(121)x=9.4(122)x=14(123)x=39(124)x=7(125)x=3(126)x=11(127)x=82(128)x=5(129)x=37(130)x=1.6(131)x=22(132)x=12(133)x=9(134)x=11(135)x=12(136)x=7(137)x=0.8(138)x=2(139)x=8.3(140)x=16.8(141)x=86(142)x=5(143)x=42(144)x=196(145)x=4(146)x=16(147)x=0.5(148)x=0.9(149)x=4(150)x=29(151)x=2.5(152)x=5(153)x=36(154)x=3(155)x=13(156)x=22(157)x=0.2(158)x=3(159)x=57(160)x=4.9(161)x=8(162)x=52(163)x=14(164)x=12(165)x=45(166)x=5(167)x=2(168)x=0.6(169)x=5.7(170)x=6.4(171)x=17(172)x=0.8(173)x=0.2(174)x=15(175)x=0.2(176)x=4.6(177)x=10(178)x=1.8(179)x=6(180)x=1(181)x=5(182)x=13(183)x=14(184)x=16(185)x=3.6(186)x=14(187)x=4(188)x=4(189)x=8(190)x=2(191)x=6(192)x=4(193)x=68(194)x=9(195)x=8(196)x=3(197)x=3(198)x=62(199)x=1(200)x=2(201)x=5(202)x=6.3(203)x=29(204)x=20(205)x=19(206)x=11(207)x=44(208)x=12(209)x=8(210)x=5(211)x=2.4(212)x=79(213)x=1.6(214)x=34(215)x=0.2(216)x=1.9(217)x=6(218)x=28(219)x=9(220)x=21(221)x=7.7(222)x=1.6(223)x=9(224)x=4(225)x=2(226)x=0.7(227)x=6(228)x=4(229)x=37(230)x=12(231)x=13(232)x=9(233)x=3(234)x=3(235)x=63(236)x=34(237)x=12(238)x=38(239)x=15(240)x=5(241)x=15(242)x=1.6(243)x=4(244)x=9(245)x=9.3(246)x=11(247)x=0.8(248)x=42(249)x=4.8(250)x=10(251)x=6(252)x=2.1(253)x=6(254)x=6(255)x=37(256)x=9(257)x=16(258)x=0.4(259)x=162(260)x=48(261)x=2(262)x=56(263)x=6.8(264)x=17(265)x=22(266)x=3(267)x=8(268)x=32(269)x=3(270)x=5(271)x=75(272)x=21(273)x=7.6(274)x=0.9(275)x=3.3(276)x=2.9(277)x=8(278)x=7.8(279)x=7(280)x=5(281)x=1.7(282)x=8(283)x=2.2(284)x=22(285)x=79(286)x=85(287)x=61(288)x=44(289)x=9(290)x=39(291)x=15(292)x=20(293)x=1.2(294)x=21(295)x=65(296)x=25(297)x=5(298)x=15(299)x=4(300)x=3.7(301)x=20(302)x=1.4(303)x=2(304)x=0.4(305)x=2(306)x=0.7(307)x=3(308)x=2(309)x=0.6(310)x=3(311)x=1.6(312)x=17(313)x=41(314)x=12(315)x=10(316)x=0.7(317)x=8(318)x=8.1(319)x=18(320)x=5(321)x=7.8(322)x=0.2(323)x=1(324)x=25(325)x=70(326)x=13(327)x=59(328)x=2(329)x=6(330)x=1.1(331)x=12(332)x=32(333)x=10(334)x=26(335)x=11(336)x=2(337)x=2(338)x=7(339)x=13(340)x=5.7(341)x=6(342)x=40(343)x=15(344)x=26(345)x=0.6(346)x=9(347)x=6(348)x=2.8(349)x=15(350)x=24(351)x=0.6(352)x=11(353)x=22(354)x=10(355)x=8(356)x=0.3(357)x=4(358)x=3(359)x=14(360)x=2(361)x=22(362)x=0.7(363)x=0.4(364)x=9(365)x=0.3(366)x=1.6(367)x=12(368)x=2(369)x=28(370)x=0.3(371)x=8(372)x=8.1(373)x=29(374)x=29(375)x=0.4(376)x=39(377)x=69(378)x=1.7(379)x=33(380)x=3(381)x=14(382)x=9(383)x=0.5(384)x=2.2(385)x=35(386)x=15(387)x=8(388)x=13(389)x=6.2(390)x=12(391)x=3(392)x=13(393)x=4(394)x=8(3