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)43x+36x-2.5=76.5(2)3.3x+4.7x-3=165(3)41-x=35(4)0.8x+1.6x=127.2(5)(2.1x-8.7)÷18=0.8(6)52x+23x+1.9=136.9(7)5.7x+5.3x=187(8)5.6x+3.7x-0.9=64.2(9)26x+11×9=281(10)11x-5x=96(11)13x+56x+2.1=78(12)(3x-2)÷7=4(13)2.4x-0.6×7=7.8(14)x÷56=0.2(15)x+3.7=6.9(16)199-6x=187(17)16x+7x+24=162(18)5(0.3x+3)=42(19)(16x+10)÷10=9(20)x-3.1=6.3(21)13.2-4.5x=4.2(22)x+9.9=12.8(23)x+4.5=14.1(24)64x-57x+2.5=11.6(25)8x÷88=0.2(26)15.9-3x=4.5(27)(11x+37)÷2=123(28)(19x-12)÷8=27(29)4.5x-1.3=16.7(30)14x+13x=297(31)7x=196(32)1.3x+2.6=15.6(33)60x+6x+4.2=103.2(34)(10x-10)÷7=10(35)5.9x+7.4x-2.5=157.1(36)8x-15×0.5=5.3(37)x+8=96(38)x+14=61(39)3.8x-0.3×16=2.8(40)x-2.1=3.3(41)4x+4.2=21(42)2.4x+3.5×4=21.2(43)0.2x÷6=1.6(44)12.8÷x=0.8(45)0.3+x=8(46)1.9x-1.2x=17.5(47)0.2x÷3=1.8(48)1.2x-1=13.4(49)6x+7x+3=198(50)11x+1.2=4.5(51)7.3+x=15.8(52)0.4x+0.6×8=7.2(53)25÷x=5(54)x+4=5.7(55)0.2x+0.8×3=3(56)75x+22=172(57)17.6-3.3x=4.4(58)93+x=162(59)(10x+12)÷2=56(60)3x-53=25(61)75-x=61(62)25x-3.2=1.8(63)59+x=63(64)(15x+3)÷2=69(65)90x-69x-2.9=11.8(66)16x-8x-10=30(67)2(0.2x+9.6)=28(68)13.8-21x=5.4(69)31x+43x-1.2=95(70)3x=14.7(71)20x÷8=0.5(72)57x+41x+4.7=151.7(73)4x-3×0.2=4.6(74)7x+10x=255(75)4(x+29)=168(76)13x+7x-41=119(77)3.5x-2.1x+3.2=28.4(78)0.3x+0.7×4=11.8(79)6x-15×7=75(80)4x+8x=216(81)x+93=102(82)18x-10x-25=23(83)8x÷14=4(84)70x-65x+3.1=7.6(85)85x+9x-0.4=93.6(86)66x-39x-2.9=10.6(87)(0.2x+0.6)÷2=1.2(88)0.2x+2.6=13.2(89)2.2x-0.7×2=11.8(90)47x-1=13.1(91)2x+5x=203(92)13x-3x+42=142(93)18x-46=80(94)187+3x=292(95)7x-1.5=4.8(96)0.2x-2=14.2(97)29x-6x+0.9=42.3(98)3.7x+3x+1.8=55.4(99)0.2x+6x+3.2=34.2(100)2x+35=225(101)18x-2x=80(102)9x-5x+9=97(103)2x÷10=1.5(104)138÷x=3(105)3.4+2x=5.2(106)11x-2x-24=48(107)84-x=60(108)53x+44x-3.2=103.5(109)19x-3x=80(110)3x+39=150(111)0.3x+5.9=21.5(112)11x+36×2=149(113)7(x-7)=154(114)11(0.3x-6.5)=37.4(115)11x+7×2.3=33.7(116)5(x+2)=95(117)46x-5×1.8=9.4(118)78÷x=39(119)x÷11=9(120)27x-5×1.3=12.4(121)91x-1.1=17.1(122)84x÷4=4.2(123)1.4x-0.3×14=1.4(124)15x-5×17=80(125)7.6x-1x=59.4(126)x-2=6(127)4.7x-2.2x=7.5(128)50x-6x+4.9=62.1(129)6x+3x=171(130)28x-19x-3.2=22.9(131)3.1x-0.8x=55.2(132)16.8+18x=29.4(133)14÷x=0.7(134)44x+9×1.8=29.4(135)4.7x-0.7x+3.2=87.2(136)0.7x+1.9=21.5(137)18x+13x+44=292(138)6-x=4.5(139)2.9x-2x+4.2=27.6(140)0.4x+0.8×17=31.6(141)1.2x-1.8=12.6(142)x÷76=0.2(143)(5.3x+0.6)÷29=1.3(144)152÷x=4(145)31x-8x-1.9=37.2(146)14.7-2x=4.7(147)0.3x=5.1(148)3x+53=239(149)1.3x-3.7=8(150)2.4+x=7.6(151)82x-56x+2.7=23.5(152)x+62=155(153)4x÷6=3(154)5(3x-14)=170(155)x-1.6=7.7(156)120-9x=39(157)3(0.5x-2.4)=39.3(158)80+100x=280(159)x-24=42(160)(3.7x+1.9)÷7=8.2(161)29x+33x+1.8=156.8(162)8x+5x-46=71(163)14x+2x-37=107(164)4(0.3x+2.9)=38(165)185+25x=335(166)92-x=40(167)1.3x-1.7=10(168)9.7x-8.1x-1=3.8(169)11(0.6x+1.4)=48.4(170)6x+5.1x+4.9=138.1(171)5.8-x=2.9(172)2(2.3x+8.4)=49(173)11(13x-12)=154(174)2x-28×3=80(175)9÷x=1.8(176)3x-2.3=2.8(177)0.2x+1x-3.5=15.7(178)16.5+0.6x=22.5(179)13x+16x=232(180)34x-18×0.3=4.8(181)3x÷14=9(182)0.6x÷42=0.3(183)25x-3x-0.2=21.8(184)2x-1.2x-0.2=14.2(185)8x÷18=4(186)4.8x=9.6(187)x+60=122(188)17x-5x=120(189)19.6+1.6x=34(190)56x-35x-3.3=28.2(191)82x+67x-1.9=147.1(192)94-2x=40(193)14x-18×4=82(194)23x-3×26=106(195)8x+9×1.5=21.5(196)5x÷25=4(197)3x-2×57=12(198)40x=16(199)2+x=5.4(200)15.4+7x=27.3(201)7.2x-5.5x-0.2=20.2(202)10.2+4x=18.6(203)5x-52=23(204)59-x=13(205)7x+18×3=159(206)11(0.7x-4)=48.4(207)x-63=22(208)0.4x÷62=0.2(209)15x=10.5(210)15.2+1x=19.2(211)x÷7=6(212)5x+4.4=10.9(213)0.2x=0.6(214)2x+1.1=2.3(215)x÷2=1(216)22x+16=82(217)x-26=19(218)x÷12=4(219)10.6+0.4x=18.2(220)53x-7x+2.9=39.7(221)(2.1x-1.2)÷24=0.3(222)2.3x+9.7x+1.3=109.3(223)165÷x=15(224)4x+2x+49=265(225)15x-6x+4=112(226)3.4x÷17=1(227)2(3x+32)=142(228)17x-2x=165(229)16x-5x-18=26(230)14.5+9.8x=34.1(231)6x-3x+48=78(232)x÷3=11(233)10x-10×0.5=4(234)3(3x+48)=180(235)5x+14x-36=192(236)12x-10x=22(237)3.2x+0.9×10=18.6(238)(6x-12)÷6=25(239)13.3÷x=0.7(240)5(25x-26)=120(241)x-38=56(242)0.3x=10.2(243)6.2x-3.7x+4=19(244)4x+5x+43=187(245)(7.8x+1.2)÷24=3.3(246)2x-25=13(247)8.4x-3.5x=49(248)x-76=10(249)18+x=93(250)x-2.4=5.2(251)(8.9x-4.9)÷8=9.4(252)6.6x+6.8x=107.2(253)3.5x+1.9×4=18.1(254)7x+10x-18=50(255)1.8x+9.2x=77(256)(16x-17)÷31=1(257)68+x=147(258)1.5x+4.3x=116(259)5(4x-40)=200(260)9.6+x=15(261)4x+16=100(262)0.3x=12.6(263)2+50x=17(264)0.6÷x=0.2(265)3.9-x=3.2(266)7.3x+3.4x=96.3(267)8.7x-3.7x+2.6=42.6(268)x-5.5=1.3(269)45x÷10=1.8(270)2x=5.6(271)3.8+x=11.1(272)8.8x-0.4x-3.7=13.1(273)15.7+2x=30.5(274)42+56x=154(275)140-13x=36(276)x-2.9=1.2(277)36x+47x-0.7=15.9(278)2x+4x+4.8=12.6(279)6.3x-1.3x=45(280)57÷x=19(281)18x÷36=2(282)x÷5=23(283)4x+4×0.8=22(284)(2.2x-9.9)÷15=1.1(285)(6x+22)÷14=5(286)3.2x+5.3x+3.1=71.1(287)140-2x=62(288)x-70=15(289)19x-5x-32=80(290)9.1x-0.3x-3.1=76.1(291)7.1-x=1.9(292)x÷7=1(293)17.1-13x=8(294)2(0.6x+7.9)=20.6(295)0.6x+3.1=16.3(296)4x=52(297)8.2x-2.6x-4.4=29.2(298)x÷5=31(299)3.1x-2.2x-2.8=14.3(300)59+11x=202(301)10.3-30x=4.3(302)0.2x÷26=0.6(303)54x+60x-3.1=167.9(304)13x+26x+2.8=18.4(305)9x-5x-21=27(306)6x÷10=0.3(307)24x-3×3.2=9.6(308)15x-9x+11=47(309)40x-19x-4.6=47.9(310)3x=30(311)13(20x-45)=195(312)36+45x=126(313)1.7x-1.3x=13.2(314)5.5x-1.9x=61.2(315)4.6x-3×2=7.8(316)18-0.8x=12.4(317)(8x-47)÷3=19(318)15x+19x-12=56(319)3x=195(320)94-x=64(321)4x-2×82=32(322)0.2x+2.5×8=26.8(323)x-28=17(324)x+12=89(325)2x=8(326)52x+66x-0.6=70.2(327)(5.9x+9.1)÷17=4.7(328)5x+17x=44(329)7(x+14)=196(330)2.3x-0.2×41=5.6(331)9.9+x=16.1(332)(4x+44)÷8=13(333)0.9x+0.8x-4.2=6(334)0.6x-0.4x+1.4=18.8(335)4(21x+7)=196(336)0.8x+9.2x+1.3=31.3(337)45+x=110(338)122+2x=154(339)19x=7.6(340)6x=6.6(341)5.2x-4.5x+4.4=12.1(342)x÷2=4(343)(3x-1.5)÷15=0.7(344)88+x=166(345)0.5x-0.3×25=11(346)84÷x=12(347)6x=15.6(348)34x=170(349)5x+18x=92(350)1.7x+1.6x=72.6(351)(5.3x-5.8)÷4=11.8(352)x÷4=2.9(353)11x=198(354)55x+12=122(355)119-34x=51(356)x+0.3=0.5(357)7x+44×0.4=35.1(358)8.3x+7.7x+4.4=52.4(359)29x+48×0.3=23.1(360)(16x+34)÷5=26(361)14÷x=2(362)93-x=78(363)3x+15×7=300(364)x÷8=21(365)x+4.4=8.3(366)2(18x+23)=190(367)9.2x+7.4x=99.6(368)8x=144(369)5.7x-3.9x=19.8(370)(1.4x+6.4)÷10=2.6(371)25x+44=169(372)64÷x=4(373)162-2x=56(374)7(0.4x+0.5)=9.1(375)4x=4.4(376)2.2x+6.3x-4.4=12.6(377)75+x=149(378)12x+20×0.9=30(379)1.1x+1.1=6.6(380)51x-51=51(381)15+x=57(382)5x-1.1=3.9(383)1.3x-1x+3.1=9.1(384)(5x-30)÷7=5(385)9x÷18=7(386)14.4÷x=1.2(387)71x+46x+2.3=166.1(388)8.5-x=1.2(389)1.7+1.3x=8.2(390)x+93=124(391)x+7.3=11.6(392)20(0.7x-8.9)=32(393)17.9-0.8x=6.7(394)3(12x-49)=141(395)9x+7x+37=85(396)4x-2x-6=78(397)2x+11×6=100(398)6.6+21x=21.3(399)16x+5x+17=164(400)9.2-0.6x=5(401)8+1x=10(402)92-x=90(403)15.7+0.4x=26.1(404)0.2x=8.6(405)11(3.3x-5.4)=49.5(406)11.5-2x=8.5(407)2(7x-38)=64(408)14x-4x=100(409)9x+2.8x=59(410)2x+27×6=320(411)9.2-x=6.9(412)9.3x-8.4x+2.9=10.1(413)5-0.2x=3.8(414)10x-3x+9=58(415)13x-5x+40=120(416)18.1-1.5x=13.6(417)14-2x=8(418)x-0.8=1.6(419)97x-24x-2.1=70.9(420)3(x-4)=87(421)2.5x+3.2x-0.4=102.2(422)5x-11×4=156(423)3.2x+4.6x+2=25.4(424)9x-47=97(425)18x-11×0.8=11(426)1.8x÷12=0.3(427)x+8.9=12.4(428)2x+3x-3=17(429)37x-48×0.2=5.2(430)1.6x÷8=2(431)20x-3.1=16.9(432)9x-3x+12=42(433)x÷28=0.2(434)1.3x-0.7×2=16.8(435)x-0.5=4.2(436)8(5.6x-7.6)=28.8(437)8x=18.4(438)40x+28x-4.1=77.5(439)44x-32=144(440)3x+6x+3=210(441)(15x-49)÷11=1(442)x+8=8.6(443)0.6x-3.8=9.4(444)167+32x=263(445)16x+47×0.3=26.9(446)5.1x-1.2x-0.9=65.4(447)38+2x=152(448)17x-6x-32=23(449)7.2+4x=10(450)164-8x=108(451)2(10x+46)=172(452)(7.2x+5.1)÷3=28.1(453)2x+5.4=17.6(454)x-34=11(455)24x+10×0.3=22.2(456)6x-5.3=10.9(457)(2x-4)÷2=15(458)2(0.5x-0.6)=28.8(459)0.3x+1.7=7.1(460)3(0.3x-5.6)=13.8(461)0.4x+1.8×6=15.2(462)15x-6x=72(463)18x+36=144(464)5.7-5x=2.2(465)17.9-0.3x=2.6(466)30x-8x-2.7=17.1(467)x÷45=2(468)18x+5x-45=185(469)(5x-9)÷21=6(470)x-40=24(471)63+x=132(472)2x+5.9=6.3(473)18.6-0.6x=6(474)(13x+15)÷5=42(475)7x=126(476)3(0.4x+2.1)=30.3(477)55x-8x+1.7=48.7(478)4x-2x+12=72(479)x÷50=0.2(480)0.2x÷16=1(481)13.9-2x=5.3(482)3x÷6=1.6(483)12x+4.2=18.6(484)30-x=24(485)1.7x-1.2x-1.8=7.7(486)x+41=91(487)5x+7x=132(488)7x-2×7=98(489)5.9x-3.4=14.3(490)5x-3x=78(491)11x+3x+15=211(492)60x-11x+1.3=79.7(493)8.7-x=8.3(494)0.2x+5.5=7.9(495)4.3x-3.1=5.5(496)(7x-35)÷7=21(497)94x-35x+3.3=21(498)4x+16×8=196(499)(6.6x-1)÷7=7.4(500)4x+1.5=10.3(501)9.4-x=7.1(502)27(1.2x-3.1)=45.9(503)6x-20=124(504)2x+3×34=212(505)2(0.8x+6.5)=16.2(506)x+7=56(507)75x÷25=0.6(508)x÷2=1.3(509)5x-2x-7=53(510)189-2x=23(511)32x+50x+4.6=111.2(512)10x=60(513)3x-3.4=9.2(514)12(x+2)=48(515)(2.3x+2.4)÷3=12.3(516)16x+5x-40=170(517)9.9+3.9x=17.7(518)7.9+85x=24.9(519)(7.3x+2.4)÷27=0.9(520)8.4÷x=0.4(521)x÷9=1.3(522)2.9x+3.4x-1=137.6(523)99x+5.8=25.6(524)(3x+3)÷24=1(525)7x+19×10=344(526)11x÷44=4(527)39x-43=113(528)9.3-x=5.1(529)3.9x-0.5×2=18.5(530)1.7x+7.9x-2=74.8(531)1.2÷x=0.4(532)8.3+x=18.2(533)18.2÷x=1.3(534)14x÷28=6(535)5.8x+0.9x+2.6=103.1(536)3.7x=14.8(537)60x÷20=9(538)0.4x=20(539)7.2+x=9.5(540)0.5x+3.8=6.8参考答案(1)x=1(2)x=21(3)x=6(4)x=53(5)x=11(6)x=1.8(7)x=17(8)x=7(9)x=7(10)x=16(11)x=1.1(12)x=10(13)x=5(14)x=11.2(15)x=3.2(16)x=2(17)x=6(18)x=18(19)x=5(20)x=9.4(21)x=2(22)x=2.9(23)x=9.6(24)x=1.3(25)x=2.2(26)x=3.8(27)x=19(28)x=12(29)x=4(30)x=11(31)x=28(32)x=10(33)x=1.5(34)x=8(35)x=12(36)x=1.6(37)x=88(38)x=47(39)x=2(40)x=5.4(41)x=4.2(42)x=3(43)x=48(44)x=16(45)x=7.7(46)x=25(47)x=27(48)x=12(49)x=15(50)x=0.3(51)x=8.5(52)x=6(53)x=5(54)x=1.7(55)x=3(56)x=2(57)x=4(58)x=69(59)x=10(60)x=26(61)x=14(62)x=0.2(63)x=4(64)x=9(65)x=0.7(66)x=5(67)x=22(68)x=0.4(69)x=1.3(70)x=4.9(71)x=0.2(72)x=1.5(73)x=1.3(74)x=15(75)x=13(76)x=8(77)x=18(78)x=30(79)x=30(80)x=18(81)x=9(82)x=6(83)x=7(84)x=0.9(85)x=1(86)x=0.5(87)x=9(88)x=53(89)x=6(90)x=0.3(91)x=29(92)x=10(93)x=7(94)x=35(95)x=0.9(96)x=81(97)x=1.8(98)x=8(99)x=5(100)x=95(101)x=5(102)x=22(103)x=7.5(104)x=46(105)x=0.9(106)x=8(107)x=24(108)x=1.1(109)x=5(110)x=37(111)x=52(112)x=7(113)x=29(114)x=33(115)x=1.6(116)x=17(117)x=0.4(118)x=2(119)x=99(120)x=0.7(121)x=0.2(122)x=0.2(123)x=4(124)x=11(125)x=9(126)x=8(127)x=3(128)x=1.3(129)x=19(130)x=2.9(131)x=24(132)x=0.7(133)x=20(134)x=0.3(135)x=21(136)x=28(137)x=8(138)x=1.5(139)x=26(140)x=45(141)x=12(142)x=15.2(143)x=7(144)x=38(145)x=1.7(146)x=5(147)x=17(148)x=62(149)x=9(150)x=5.2(151)x=0.8(152)x=93(153)x=4.5(154)x=16(155)x=9.3(156)x=9(157)x=31(158)x=2(159)x=66(160)x=15(161)x=2.5(162)x=9(163)x=9(164)x=22(165)x=6(166)x=52(167)x=9(168)x=3(169)x=5(170)x=12(171)x=2.9(172)x=7(173)x=2(174)x=82(175)x=5(176)x=1.7(177)x=16(178)x=10(179)x=8(180)x=0.3(181)x=42(182)x=21(183)x=1(184)x=18(185)x=9(186)x=2(187)x=62(188)x=10(189)x=9(190)x=1.5(191)x=1(192)x=27(193)x=11(194)x=8(195)x=1(196)x=20(197)x=42(198)x=0.4(199)x=3.4(200)x=1.7(201)x=12(202)x=2.1(203)x=15(204)x=46(205)x=15(206)x=12(207)x=85(208)x=31(209)x=0.7(210)x=4(211)x=42(212)x=1.3(213)x=3(214)x=0.6(215)x=2(216)x=3(217)x=45(218)x=48(219)x=19(220)x=0.8(221)x=4(222)x=9(223)x=11(224)x=36(225)x=12(226)x=5(227)x=13(228)x=11(229)x=4(230)x=2(231)x=10(232)x=33(233)x=0.9(234)x=4(235)x=12(236)x=11(237)x=3(238)x=27(239)x=19(240)x=2(241)x=94(242)x=34(243)x=6(244)x=16(245)x=10(246)x=19(247)x=10(248)x=86(249)x=75(250)x=7.6(251)x=9(252)x=8(253)x=3(254)x=4(255)x=7(256)x=3(257)x=79(258)x=20(259)x=20(260)x=5.4(261)x=21(262)x=42(263)x=0.3(264)x=3(265)x=0.7(266)x=9(267)x=8(268)x=6.8(269)x=0.4(270)x=2.8(271)x=7.3(272)x=2(273)x=7.4(274)x=2(275)x=8(276)x=4.1(277)x=0.2(278)x=1.3(279)x=9(280)x=3(281)x=4(282)x=115(283)x=4.7(284)x=12(285)x=8(286)x=8(287)x=39(288)x=85(289)x=8(290)x=9(291)x=5.2(292)x=7(293)x=0.7(294)x=4(295)x=22(296)x=13(297)x=6(298)x=155(299)x=19(300)x=13(301)x=0.2(302)x=78(303)x=1.5(304)x=0.4(305)x=12(306)x=0.5(307)x=0.8(308)x=6(309)x=2.5(310)x=10(311)x=3(312)x=2(313)x=33(314)x=17(315)x=3(316)x=7(317)x=13(318)x=2(319)x=65(320)x=30(321)x=49(322)x=34(323)x=45(324)x=77(325)x=4(326)x=0.6(327)x=12(328)x=2(329)x=14(330)x=6(331)x=6.2(332)x=15(333)x=6(334)x=87(335)x=2(336)x=3(337)x=65(338)x=16(339)x=0.4(340)x=1.1(341)x=11(342)x=8(343)x=4(344)x=78(345)x=37(346)x=7(347)x=2.6(348)x=5(349)x=4(350)x=22(351)x=10(352)x=11.6(353)x=18(354)x=2(355)x=2(356)x=0.2(357)x=2.5(358)x=3(359)x=0.3(360)x=6(361)x=7(362)x=15(363)x=65(364)x=168(365)x=3.9(366)x=4(367)x=6(368)x=18(369)x=11(370)x=14(371)x=5(372)x=16(373)x=53(374)x=2(375)x=1.1(376)x=2(377)x=74(378)x=1(379)x=5(380)x=2(381)x=42(382)x=1(383)x=20(384)x=13(385)x=14(386)x=12(387)x=1.4(388)x=7.3(389)x=5(390)x=31(391)x=4.3(392)x=15(393)x=14(394)x