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)169+18x=205(2)2x+6x-4=236(3)0.9x÷3=4.5(4)1.7x-0.4x-1.9=57.9(5)16+0.3x=25.6(6)13x-4×36=51(7)65x-53x-1.3=1.1(8)1.5x+7x+0.8=94.3(9)6.4-x=6.1(10)172-2x=152(11)4x÷94=2(12)3x+91x-0.7=55.7(13)7x+6x+30=82(14)14x-12x=22(15)54÷x=3(16)2x-1.8=9.2(17)88-20x=28(18)8.2-0.8x=1(19)19.9-2x=1.9(20)x-32=44(21)8x+14x+40=106(22)35+x=71(23)17x-4x+47=177(24)2.5x-0.9x=60.8(25)0.2x+1.1x=81.9(26)17x+4x+3=66(27)19x-3x=112(28)99x+12=210(29)(16x-2)÷5=22(30)3.1x+1.3×6=20.2(31)(9.7x+5.7)÷16=4.6(32)73+2x=269(33)60+x=154(34)18.4÷x=0.4(35)2.5x-0.3x+0.7=62.3(36)5.2+3x=17.8(37)x÷3=24(38)x+9.2=18.7(39)66-x=55(40)89x+46=224(41)2.6x+2.1x-1.6=167.6(42)6x-11=127(43)14.4+9x=34.2(44)3x-0.9x-0.6=45.6(45)8.8-x=8.1(46)167+58x=341(47)29x-4×2.4=7.8(48)193-8x=41(49)0.3x-2.2=2(50)11x-20=112(51)6(5x+3)=108(52)x÷5=37(53)3.9+x=4.2(54)28-4x=16(55)88-x=43(56)45x-38x+4.4=5.8(57)26x+76x+4.6=65.8(58)5(x-8)=160(59)16.2+3.1x=31.7(60)x÷5=2.4(61)16.2+1x=23.2(62)1.1x-1.1=7.7(63)8x+5.5=12.7(64)(16x-48)÷48=3(65)4x-59=41(66)x+3.4=6.6(67)x+2.6=3.7(68)2x-5.9=5.7(69)5.6-x=3.2(70)x÷24=3(71)0.6x+0.2×42=21(72)x+36=41(73)14(3x-25)=196(74)17.1-1.5x=3.6(75)8.1x-6.7x-3.7=10.3(76)3x-21=111(77)17x+13x-49=71(78)17.8+0.7x=37.4(79)4+94x=22.8(80)16.1-0.3x=9.5(81)20+x=84(82)9x+5×2.4=21(83)5.8+x=10.4(84)5x+8×1.1=20.8(85)(2x+4)÷3=6(86)40x-7x-3.6=45.9(87)3(2.9x+2.5)=33.6(88)9.6÷x=1.2(89)11+0.3x=23.3(90)13x+23×0.4=19.6(91)3.9x-0.2×38=11.9(92)6x+8x=154(93)3x+2.5=9.4(94)5x÷30=0.2(95)142-33x=76(96)2.6+2x=4.8(97)4.2-x=2.6(98)17.5-7x=13.3(99)13x-9x=28(100)13x+2.3=11.4(101)15.5-3x=3.2(102)4(2x-47)=68(103)2(2x+42)=184(104)12÷x=6(105)9.1x-1.3x-2.5=20.9(106)1.1x+2.7=12.6(107)3(x+46)=150(108)15x-7x-0.2=33.4(109)x-13=51(110)4.9x+7.2x-0.4=156.9(111)7x-5x+17=59(112)84x÷56=3(113)7.4x-5.7=9.1(114)11x-12×0.9=2.4(115)50+x=134(116)16x÷10=0.8(117)106÷x=2(118)5x-2x-42=66(119)0.8x-0.4x+3.1=35.1(120)9x+4x=221(121)7x-2.4x=18.4(122)(4.1x-0.2)÷2=20.4(123)1x=7(124)69-x=42(125)(4x+8.9)÷11=5.9(126)(8x-9)÷5=14.2(127)3x+10x-43=204(128)12x-9x=24(129)13x+72x+4.9=98.4(130)15x-3x-31=29(131)1x=6(132)(12x+15)÷3=61(133)x-5=52(134)2x÷5=18(135)12x÷60=0.2(136)3x+10×2=29.9(137)14x-6x-33=23(138)77x-17x+0.7=72.7(139)2x=172(140)6.1x-2.4x-0.5=55(141)0.5x-0.2×27=7.1(142)x÷2=7(143)2x+3×36=232(144)(12x-46)÷19=2(145)x+4.2=10.1(146)13x-7x+2=22.4(147)5x÷4=3(148)2+x=8(149)9.7+x=17.3(150)10x-2x=120(151)17x-16×5=90(152)0.5x+1.6×6=28.1(153)13(0.3x-5.5)=37.7(154)4.5x-3.6x=7.2(155)1.9x+3.7x+4.7=83.1(156)2(19x-45)=62(157)5x=20(158)39÷x=3(159)17.5-2x=5.5(160)32x-6x+1.8=69.4(161)4x+16x+2=122(162)7x+2x-46=116(163)85-x=67(164)10x+2×87=374(165)2x=9.4(166)(1.7x+3.4)÷17=0.4(167)19.8+11x=36.3(168)3x+10x=52(169)0.3x=6.3(170)96-x=55(171)27x-6x+2.6=29.9(172)12x-6x-48=42(173)166+2x=364(174)19x-7×8=58(175)0.7x+1.8×4=17.7(176)10(x+15)=180(177)8.2x-2.9x-2=8.6(178)6x÷2=45(179)(3x-7)÷23=1(180)5+x=6(181)1.3x-0.9x+4.8=11.6(182)6x=66(183)x-12=19(184)3x÷39=5(185)x+75=140(186)13x-35=95(187)11x-2x-16=92(188)9.4-0.7x=6.6(189)x+5=7.6(190)2(1.2x+3.3)=45(191)3.9-x=1(192)11x=132(193)9.8x+2.1x=47.6(194)6-7x=1.1(195)8.8x+8.2x-1.6=117.4(196)5x+33=188(197)3.9x-3.5x-1.1=8.5(198)8.4x÷8=2.1(199)37-3x=25(200)18÷x=0.2(201)x+4.7=10.3(202)21x+3.2=7.4(203)15(0.2x-3.6)=36(204)(3.5x+7.6)÷4=12.4(205)(7x+42)÷34=7(206)90x+85x+1.9=36.9(207)2(20x-44)=72(208)84-x=74(209)x-1.7=4.1(210)7(2.4x-5)=32.2(211)1.7x+1.3=9.8(212)5.7-x=2.8(213)4.5x+9.9x+0.7=43.9(214)5x+2×2.6=23.7(215)x÷19=0.5(216)7.2x-3.2=11.2(217)3x+11x=56(218)18.8-3.2x=12.4(219)x-0.6=4.6(220)2(0.4x+1.8)=18(221)11x+15×0.8=31.8(222)2x÷4=1.1(223)4.7x+3.5x-0.8=64.8(224)4.8x-1.9x+1.9=16.4(225)(0.6x-9)÷2=1.2(226)7x-5x-12=28(227)11x=17.6(228)(9x-8)÷4=7(229)(4.2x+7.5)÷3=5.3(230)79x-72x+1.2=2.6(231)6(0.2x+2)=37.2(232)0.3x+1.3×15=24.3(233)x+65=96(234)1.8x+3.6x=48.6(235)0.9x+2.2×6=16.8(236)5x-5×0.4=8(237)185+17x=321(238)2.1x-0.2x+4.9=56.2(239)0.2x=13.4(240)19x-2x=136(241)136÷x=8(242)7.8÷x=0.3(243)5x+5.4=10.9(244)5.7x+1.2x-4.9=98.6(245)x+7.7=10.5(246)(5x-39)÷7=13(247)14(0.9x-5.3)=39.2(248)2.4÷x=0.6(249)22x+4.3=17.5(250)x-5=3.8(251)x+3.6=10(252)(5x+40)÷4=45(253)20x=60(254)13.5+8x=17.5(255)x-1.1=6.7(256)6.6x÷44=0.3(257)18x+14x-3.3=140.7(258)5x=100(259)37-x=12(260)0.6x+3.7=23.5(261)4x+7x=165(262)14x+9x-12=149(263)23+x=34(264)9.3-9x=4.8(265)53x+58=164(266)9x-3×0.5=12.9(267)2.1x-1.1x=12(268)6.6x÷6=3.3(269)54x+15x-2.7=24.9(270)4.8x+3.2x=72(271)2x=54(272)2x-22×3=118(273)3(0.9x+4.4)=48.3(274)0.2x+1.5=19.3(275)11.2÷x=0.7(276)4x=17.6(277)4.7x+1.8x-0.7=70.8(278)8x+16x+5=245(279)4x+6x=30(280)2x+3×4.5=17.5(281)3(15x+13)=174(282)87-x=64(283)16.3-8x=1.1(284)5x÷30=0.3(285)163+22x=317(286)11x+3x-49=35(287)185÷x=37(288)(13x+26)÷3=78(289)3.6x-0.3x=69.3(290)10x=16(291)3.5x+0.9x+2.1=54.9(292)1.2+x=6.3(293)3.2x-0.4x=39.2(294)47x-3.5=15.3(295)2.6x+9.8x=86.8(296)2x+6x+44=156(297)x÷3=0.4(298)5x+4x=135(299)1.9x+3.7=9.4(300)7x=16.8(301)66x+83x+1=120.2(302)2.2+34x=9(303)x+59=94(304)2(1.7x-0.7)=46.2(305)2(2.2x+2.9)=36.6(306)16x+14x-18=192(307)6÷x=2(308)16x÷32=4(309)x-10=55(310)30x+18x-1.3=128.3(311)46x-3=15.4(312)2(12x+11)=166(313)3.5+x=5.9(314)3(12x+37)=183(315)9.6x+0.2x-2.1=56.7(316)11.1-2x=7.9(317)49x-9x-2.6=29.4(318)8x+5.2x=39.6(319)8x+3×13=167(320)0.8x-2.4=8(321)2(13x-26)=182(322)x÷5=22(323)x+72=76(324)16.1+0.2x=17.5(325)27x+2×2.1=9.6(326)10x-5x=65(327)9.4-x=6.8(328)10x-54=16(329)x-0.9=6.3(330)x-8=1.8(331)0.3x÷21=0.6(332)1x-0.7x-1.2=2.7(333)8x+20=148(334)1.7x+3.6×4=31.4(335)(10x-28)÷2=121(336)73x+12=158(337)17x-13x+31=63(338)16.3-0.4x=15.5(339)25x-17×0.4=5.7(340)4.5x+2.1×6=30.6(341)x-4=2.5(342)171+71x=313(343)7x+49=238(344)9.6x-4.2x+3.3=51.9(345)7x-6×0.2=11.4(346)14x-5x+24=51(347)x÷42=2(348)2(5x-49)=42(349)7.9-x=1.3(350)84x-16x-2.4=52(351)12x-2x-42=58(352)2x÷6=31(353)18.7-5.2x=8.3(354)9.7x-3.6x=24.4(355)(2x-28)÷2=12(356)6x=126(357)10x-26×3=62(358)9+3.8x=20.4(359)17x+12x+32=264(360)x÷6=28(361)13x-4.2=15.3(362)3.3x+2.7=9.3(363)5x+38×2=201(364)6.9+x=15.4(365)x+4.3=9.7(366)4x+29×3=167(367)4.9x-0.5x+3.7=65.3(368)2x-42=12(369)(7x+5)÷10=11(370)6x+13x=133(371)123-34x=55(372)24x-4=5.6(373)94-x=15(374)4.3+14x=15.5(375)42x-48=78(376)18x-15×2=96(377)11x-9x+4.9=22.5(378)47+x=102(379)x+27=41(380)11x+3×6=40(381)15x+6x=189(382)x-3.4=2.2(383)(5.1x-5)÷2=12.8(384)28x=19.6(385)(12x+24)÷28=3(386)64+7x=183(387)19x-12x+9=44(388)11x-6x+23=38(389)1.2x-4.1=3.1(390)0.6x-1×2=4.6(391)8x+7x+45=360(392)(4.6x-9.4)÷10=5.5(393)83x+27x+2.8=123.8(394)(5x+41)÷3=32(395)3x+2×35=214(396)x÷14=0.5(397)9.3+5.6x=26.1(398)(5.7x-3.8)÷19=1.9(399)7(x-26)=84(400)10(3x-1.1)=49(401)x÷5=3.5(402)4.7x+0.2x=58.8(403)73x+5.3=19.9(404)64x+63x+4.4=93.3(405)x-37=29(406)(12x-24)÷9=20(407)7x-0.5x+1.7=79.7(408)2.1x-1.6x=6(409)(2.8x+2)÷2=9.4(410)2.2x-0.4×8=12.2(411)5(1.2x+2.3)=47.5(412)x+28=39(413)95x+52x-4.6=68.9(414)3x=2.4(415)14(0.8x-3.7)=49(416)7x÷35=2(417)1.8x+1x=64.4(418)x-63=31(419)100÷x=20(420)1.8x+5.8=13(421)9.1-5x=4.6(422)153÷x=9(423)67x+23x-1.6=43.4(424)x÷61=0.2(425)1.4x-1.6=15.2(426)0.3x-2×3=8.7(427)3+x=5.9(428)3x-4×35=19(429)8x-1.5=11.3(430)4.8+x=9.5(431)9.1-x=5.4(432)7x+3x-49=211(433)(0.4x-1.2)÷2=1(434)8x+18=154(435)x-68=31(436)4x+52x+3.6=37.2(437)18÷x=0.3(438)2(2x-8)=68(439)2x-2×1.2=3.4(440)14x+30x-3.7=71.1(441)13x-2x+3.6=86.1(442)4.6x+2.4x+1.7=36.7(443)x÷3=2.3(444)2x+3x+9=234(445)6.8x+6.7x=121.5(446)2.3x-1×2=4.9(447)x÷8=19(448)2x=108(449)3.9x+5=12.8(450)(6x+18)÷14=3(451)2.8x÷2=4.2(452)x÷36=2(453)25x+5.5=18(454)4x=7.2(455)3.1x+4x-0.6=20.7(456)1.6x-3.2=12.8(457)4x+74x+4.3=90.1(458)9.4+5x=22.4(459)4.1x-1.9x+3.7=38.9(460)15x-3×6=57(461)8.7x+9.3x+1.2=37.2(462)7x-5.3x=8.5(463)3.9x-1=18.5(464)16x-11x+25=50(465)x+38=75(466)(1.3x-0.7)÷16=1.5(467)22x-8×0.4=16.6(468)x-3.4=3(469)3.2÷x=1.6(470)6x÷18=0.7(471)23x-6×4=22(472)65x+26x-3=106.2(473)3x+5.9x+2.2=91.2(474)10.7-1.8x=1.7(475)17.3-6x=3.5(476)0.8x÷5=3.2(477)18x+2x-11=149(478)18x-2x=48(479)2x=17.2(480)0.7x-0.2×43=4.7(481)(4.7x+4.8)÷11=3(482)4.1x=12.3(483)3x÷36=0.5(484)5x+47×0.2=16.4(485)0.4x=4.8(486)6x-3x=57(487)0.9x=5.4(488)2x-55=91(489)54x-8x-0.9=49.7(490)10x÷2=3.5(491)1.7x+3x+4.1=51.1(492)3.1x=18.6(493)32x-6×1.8=2(494)5(0.2x-2.9)=27.5(495)77x-14x+1=70.3(496)3(x+27)=144(497)5(x-5.3)=23.5(498)0.2x+0.3×41=19.5(499)12(0.9x+1.2)=36(500)x÷2=3.3(501)19x-12x-34=29(502)15+x=98(503)18x-13x+15=35(504)(0.2x+4.8)÷2=3.5(505)32x-28x-0.9=2.7(506)65x+66x+0.5=118.4(507)6.4x+2.1x+0.2=51.2(508)x÷28=0.3(509)18+20x=118(510)2x+11×9=119(511)8x÷2=1.6(512)2(2x+9)=106(513)76x+80x-1.3=154.7(514)76x-49x-1.9=3.5(515)(4.2x+4.1)÷13=2.9(516)3.3x+5x-4.9=136.2(517)0.3x-0.3×15=6.3(518)1.1x+3=5.2(519)11x-8x+18=66(520)(16x-27)÷21=1(521)0.6x-0.7×5=3.7(522)41-2x=13(523)0.5x÷10=1.1(524)x+24=60(525)6.6x-5.1x-1.8=10.2(526)16x-10x-9=15(527)86-2x=80(528)51x+23=176(529)3x-1.6=17.3(530)x-67=12(531)96÷x=12(532)36x-20x-0.4=38(533)3x+2×9=129(534)2x+3.2=22.2(535)3.2x=9.6(536)2x-4.8=1.2(537)2(1.2x+8.7)=22.2(538)94+x=175(539)6.4+0.4x=13.6(540)3x÷11=6参考答案(1)x=2(2)x=30(3)x=15(4)x=46(5)x=32(6)x=15(7)x=0.2(8)x=11(9)x=0.3(10)x=10(11)x=47(12)x=0.6(13)x=4(14)x=11(15)x=18(16)x=5.5(17)x=3(18)x=9(19)x=9(20)x=76(21)x=3(22)x=36(23)x=10(24)x=38(25)x=63(26)x=3(27)x=7(28)x=2(29)x=7(30)x=4(31)x=7(32)x=98(33)x=94(34)x=46(35)x=28(36)x=4.2(37)x=72(38)x=9.5(39)x=11(40)x=2(41)x=36(42)x=23(43)x=2.2(44)x=22(45)x=0.7(46)x=3(47)x=0.6(48)x=19(49)x=14(50)x=12(51)x=3(52)x=185(53)x=0.3(54)x=3(55)x=45(56)x=0.2(57)x=0.6(58)x=40(59)x=5(60)x=12(61)x=7(62)x=8(63)x=0.9(64)x=12(65)x=25(66)x=3.2(67)x=1.1(68)x=5.8(69)x=2.4(70)x=72(71)x=21(72)x=5(73)x=13(74)x=9(75)x=10(76)x=44(77)x=4(78)x=28(79)x=0.2(80)x=22(81)x=64(82)x=1(83)x=4.6(84)x=2.4(85)x=7(86)x=1.5(87)x=3(88)x=8(89)x=41(90)x=0.8(91)x=5(92)x=11(93)x=2.3(94)x=1.2(95)x=2(96)x=1.1(97)x=1.6(98)x=0.6(99)x=7(100)x=0.7(101)x=4.1(102)x=32(103)x=25(104)x=2(105)x=3(106)x=9(107)x=4(108)x=4.2(109)x=64(110)x=13(111)x=21(112)x=2(113)x=2(114)x=1.2(115)x=84(116)x=0.5(117)x=53(118)x=36(119)x=80(120)x=17(121)x=4(122)x=10(123)x=7(124)x=27(125)x=14(126)x=10(127)x=19(128)x=8(129)x=1.1(130)x=5(131)x=6(132)x=14(133)x=57(134)x=45(135)x=1(136)x=3.3(137)x=7(138)x=1.2(139)x=86(140)x=15(141)x=25(142)x=14(143)x=62(144)x=7(145)x=5.9(146)x=3.4(147)x=2.4(148)x=6(149)x=7.6(150)x=15(151)x=10(152)x=37(153)x=28(154)x=8(155)x=14(156)x=4(157)x=4(158)x=13(159)x=6(160)x=2.6(161)x=6(162)x=18(163)x=18(164)x=20(165)x=4.7(166)x=2(167)x=1.5(168)x=4(169)x=21(170)x=41(171)x=1.3(172)x=15(173)x=99(174)x=6(175)x=15(176)x=3(177)x=2(178)x=15(179)x=10(180)x=1(181)x=17(182)x=11(183)x=31(184)x=65(185)x=65(186)x=10(187)x=12(188)x=4(189)x=2.6(190)x=16(191)x=2.9(192)x=12(193)x=4(194)x=0.7(195)x=7(196)x=31(197)x=24(198)x=2(199)x=4(200)x=90(201)x=5.6(202)x=0.2(203)x=30(204)x=12(205)x=28(206)x=0.2(207)x=4(208)x=10(209)x=5.8(210)x=4(211)x=5(212)x=2.9(213)x=3(214)x=3.7(215)x=9.5(216)x=2(217)x=4(218)x=2(219)x=5.2(220)x=18(221)x=1.8(222)x=2.2(223)x=8(224)x=5(225)x=19(226)x=20(227)x=1.6(228)x=4(229)x=2(230)x=0.2(231)x=21(232)x=16(233)x=31(234)x=9(235)x=4(236)x=2(237)x=8(238)x=27(239)x=67(240)x=8(241)x=17(242)x=26(243)x=1.1(244)x=15(245)x=2.8(246)x=26(247)x=9(248)x=4(249)x=0.6(250)x=8.8(251)x=6.4(252)x=28(253)x=3(254)x=0.5(255)x=7.8(256)x=2(257)x=4.5(258)x=20(259)x=25(260)x=33(261)x=15(262)x=7(263)x=11(264)x=0.5(265)x=2(266)x=1.6(267)x=12(268)x=3(269)x=0.4(270)x=9(271)x=27(272)x=92(273)x=13(274)x=89(275)x=16(276)x=4.4(277)x=11(278)x=10(279)x=3(280)x=2(281)x=3(282)x=23(283)x=1.9(284)x=1.8(285)x=7(286)x=6(287)x=5(288)x=16(289)x=21(290)x=1.6(291)x=12(292)x=5.1(293)x=14(294)x=0.4(295)x=7(296)x=14(297)x=1.2(298)x=15(299)x=3(300)x=2.4(301)x=0.8(302)x=0.2(303)x=35(304)x=14(305)x=7(306)x=7(307)x=3(308)x=8(309)x=65(310)x=2.7(311)x=0.4(312)x=6(313)x=2.4(314)x=2(315)x=6(316)x=1.6(317)x=0.8(318)x=3(319)x=16(320)x=13(321)x=9(322)x=110(323)x=4(324)x=7(325)x=0.2(326)x=13(327)x=2.6(328)x=7(329)x=7.2(330)x=9.8(331)x=42(332)x=13(333)x=16(334)x=10(335)x=27(336)x=2(337)x=8(338)x=2(339)x=0.5(340)x=4(341)x=6.5(342)x=2(343)x=27(344)x=9(345)x=1.8(346)x=3(347)x=84(348)x=14(349)x=6.6(350)x=0.8(351)x=10(352)x=93(353)x=2(354)x=4(355)x=26(356)x=21(357)x=14(358)x=3(359)x=8(360)x=168(361)x=1.5(362)x=2(363)x=25(364)x=8.5(365)x=5.4(366)x=20(367)x=14(368)x=27(369)x=15(370)x=7(371)x=2(372)x=0.4(373)x=79(374)x=0.8(375)x=3(376)x=7(377)x=8.8(378)x=55(379)x=14(380)x=2(381)x=9(382)x=5.6(383)x=6(384)x=0.7(385)x=5(386)x=17(387)x=5(388)x=3(389)x=6(390)x=11(391)x=21(392)x=14(393)x=1.1(394)x=11(39