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)8.8x-4.7x-3.2=41.9(2)(5.4x+1.4)÷2=6.1(3)6x÷42=0.3(4)x÷6=8(5)14+x=61(6)(10x+44)÷9=26(7)6x=6(8)9x-57=132(9)10(0.8x+1.8)=34(10)2x-38=92(11)15x+50=200(12)2(4.9x-6)=17.4(13)1.1x-0.3x+4=32.8(14)(13x-37)÷3=70(15)2(3x-45)=42(16)x+27=126(17)24x+5.5=19.9(18)154÷x=11(19)13x-8x=50(20)8x÷16=1.2(21)x÷4=4.6(22)47x+33=174(23)38x+15×0.9=21.1(24)x-4.6=2.3(25)4(4x-38)=72(26)23x-20x+0.9=10.8(27)8x-1.9x-2.6=52.3(28)4x+41=221(29)13x-3x+3=103(30)2x=7.8(31)x+72=160(32)13x-2.9=16.6(33)(18x-28)÷38=4(34)x+54=101(35)7.7-x=5.6(36)(7x-9.8)÷24=2.8(37)147÷x=7(38)7.2x+9x=64.8(39)(10x-22)÷46=3(40)186+56x=354(41)7.8x-2.3x=22(42)5.3x-4.6x=9.8(43)x+9.7=13.1(44)(3.7x+7.9)÷2=20.6(45)0.6x+0.2×28=22.4(46)0.4x+4.6x+0.8=35.8(47)8x+2×3.6=17.6(48)6.8x+3.2x+1.4=141.4(49)0.5x+0.4x+0.9=68.4(50)2x+4.2=17.4(51)2x-7×8=48(52)26(3.3x-8.4)=39(53)15x+2×92=274(54)9.1x-2.7x=19.2(55)7+x=40(56)3x+50=209(57)21x-17x+3.4=5.8(58)4.4x÷8=2.2(59)10x-10=60(60)96x÷12=16(61)0.7x+1.4=16.1(62)(7.9x+6.6)÷20=2.7(63)2x=17(64)2x+35×3=303(65)9.2÷x=2.3(66)3x=36(67)4.9x+6.8x-0.7=104.6(68)44x-5.3=7.9(69)2x+2.3=17.7(70)(8x-12)÷2=78(71)5.5-x=1.8(72)x+7.3=15.3(73)4.8x-0.7x+1.7=75.5(74)8x+60x+1=69(75)153+2x=161(76)14x+42=182(77)(12x+12)÷12=22(78)8.7+0.9x=11.4(79)9x+10x-2.7=82.8(80)25x-48×3=31(81)104-10x=64(82)7x-2×4.7=8.8(83)x+17=23(84)8(22x-20)=192(85)16x-2x-47=23(86)6.7x+5.7=19.1(87)2x÷35=0.4(88)17x+11×1=21.2(89)65x÷5=39(90)39x-34x+1=9.5(91)0.8x+1.5=11.9(92)175-78x=19(93)75x-57x+0.5=23.9(94)5.4+x=13.1(95)17.4-0.8x=3(96)19x-10x+4=40(97)18x+3x=231(98)x-28=68(99)51x÷34=3(100)0.2x=15.6(101)9.5x-5.9x+0.2=18.2(102)8x+32=184(103)x-4=69(104)x÷40=2(105)(19x+33)÷7=21(106)12.4-0.8x=6.8(107)2.4x+4.1x-1=12(108)75x-4x+2.9=88.1(109)(6.4x-8.1)÷25=0.7(110)11x-9x-11=15(111)x+95=152(112)5(7x-16)=200(113)2x-1.6x=14(114)(16x+46)÷18=15(115)1.6+x=5.3(116)5(8x-46)=130(117)8.9+x=17.1(118)14.4+4.5x=32.4(119)x-76=14(120)9.2x-6.9x=18.4(121)19x-17x+44=62(122)18x=72(123)10x-6x-2=10(124)7x-12×11=64(125)10x-17×0.6=5.8(126)18.9÷x=2.7(127)21x=12.6(128)x÷22=0.4(129)2x=15.8(130)6.4x-2.6x=30.4(131)7.5-x=6.5(132)x÷18=0.8(133)6.4+x=9.3(134)2+45x=20(135)15x-12x=24(136)x-57=25(137)2x-0.5×24=4(138)99+x=153(139)2x+4.9=13.9(140)7x+17x+48=192(141)x÷10=0.4(142)2(7x+24)=132(143)5x+7×0.2=3.4(144)24x+23×8=280(145)2.2x-0.8x-2.7=51.9(146)5x+8x=52(147)x+6.3=7.2(148)9.7-x=3.5(149)11.1-2x=6.1(150)x-7=1.9(151)16x+2x-19=179(152)x+22=65(153)(5.2x-4.8)÷11=7.6(154)6(0.6x-6.2)=13.2(155)4x÷22=6(156)6.3+x=7.8(157)26x+94x-1.9=82.1(158)0.5x+1.1×18=24.3(159)x÷12=15(160)11x÷3=4.4(161)22x÷8=11(162)15x-2.3=9.7(163)(9x+9)÷9=4(164)91x+48=230(165)16x-58=102(166)21x-31=53(167)x÷13=9(168)4.5x+7.4x=59.5(169)15x+2x-4=149(170)0.6x-0.5×11=4.7(171)10x+18x+36=176(172)11x+3x=56(173)18x-8x-24=16(174)38x-8x-1.7=28.3(175)34x-2.8=14.2(176)4.6-1.1x=1.3(177)51+30x=111(178)95x-68x-2.7=21.6(179)52-x=32(180)16.5-0.2x=9.5(181)18x-7x-13=31(182)x÷18=10(183)22x+35×0.3=21.5(184)2x+8x=190(185)0.8x+1.8x+4.8=69.8(186)18+x=85(187)7x=6.3(188)4x+14x=198(189)18x+24x+3.5=58.1(190)14x-4×1.7=7.2(191)12x+9x-11=199(192)4(3x-41)=124(193)14x+17x+38=286(194)9x-5x-34=18(195)14.5+56x=25.7(196)4x-76×2=20(197)6.2x+5.5x-2.8=20.6(198)6.5x+5.9x+0.2=186.2(199)0.5x÷4=4(200)5(0.5x+3.5)=35(201)1.7x=13.6(202)x+83=106(203)5-x=2.5(204)9.4-x=7.8(205)x÷24=0.4(206)9.7+1.1x=25.1(207)16.6-30x=1.6(208)9.2-6x=2.6(209)4.4x-1.2x-3.1=28.9(210)1.4x÷2=2.1(211)25x-14x-2.7=7.2(212)x÷2=25(213)x-34=36(214)19.8+0.2x=25.2(215)(16x+25)÷37=5(216)40-x=23(217)(4.1x+1.2)÷9=5.6(218)0.3x÷12=0.7(219)11x-6x+13=38(220)2x-35=77(221)2x-4.6=1.4(222)3.5x-4.2=6.3(223)6x-2x=120(224)17(3x+2)=136(225)3.1+x=3.3(226)46÷x=2(227)81+53x=187(228)(7x+18)÷2=30(229)6x+14×12=234(230)3.2x-5.7=13.5(231)x-1.2=1.4(232)9.6x+0.2x+1.3=69.9(233)11x-6x=75(234)6.3x÷7=1.8(235)1.9+4x=18.3(236)2x+7x-13=140(237)13(0.7x-7.6)=28.6(238)7.4x-5.2x-0.9=3.5(239)0.7x-0.9×7=1.4(240)(5x+9)÷4=31(241)2x÷26=0.5(242)63-x=17(243)14.1+3x=27(244)7x+4x-29=224(245)0.2x+1.4x=99.2(246)x-1.7=1.1(247)3(8x-38)=78(248)19+5x=179(249)7x+14x-2=166(250)1.6x=4.8(251)52-14x=10(252)x÷4=3.6(253)160÷x=40(254)12.8÷x=1.6(255)60x+29x+4=101.9(256)(1.8x-4.8)÷30=0.8(257)5x=25(258)47x-30x-0.3=32(259)0.5x-1.2=9.8(260)6.2x÷6=3.1(261)x÷17=9(262)0.8x+0.3×5=15.1(263)4(5.3x-9.3)=47.6(264)3x-29×2=119(265)12x-4.1=9.1(266)32x-3.3=9.5(267)(8.4x-5.4)÷2=30.9(268)9(4.3x-5.1)=31.5(269)2.8x+4.5x-1.4=137.3(270)59x-3x-0.9=10.3(271)1.5x+1.6x=186(272)144÷x=4(273)0.5x-2.2×6=2.3(274)7x=14(275)1.9x-0.8×2=15.5(276)9x-5x+14=94(277)22x-3×0.6=13.6(278)5(2x-46)=70(279)5-x=2.4(280)2x+4×31=248(281)x+4.7=7.4(282)136÷x=4(283)x-3.2=6.2(284)102-9x=21(285)73x+79x-1=75(286)8(4.7x-3.9)=44(287)97-x=89(288)x+66=155(289)0.8x-0.7×11=7.5(290)4(1.8x-4.2)=12(291)4x+3x-4=15.6(292)8x-2x-16=26(293)15.6-12x=3.6(294)8.4x-1.3x+4.9=75.9(295)2.4x=7.2(296)10x-8x=38(297)6(1.3x+2.4)=37.8(298)(5x-49)÷2=13(299)4x+15x-4.6=31.5(300)(14x-12)÷9=22(301)74x-8x+0.4=86.2(302)5.9x-1.7x+2.8=15.4(303)2(9x+4)=116(304)3(x+2)=147(305)9x-3.8=13.3(306)11x=18.7(307)17x+9×0.5=19.8(308)4x+11x-49=26(309)3.4x+4.9×2=16.6(310)15x+18x+7=271(311)7.4-3x=6.5(312)19x-11x=48(313)96+x=185(314)x-28=24(315)36x÷12=9(316)3.2x=6.4(317)0.8x+4.1x-4.3=10.4(318)(2x+7.8)÷26=1.3(319)18x+14x+0.5=61.3(320)6+x=7(321)2(1.2x+3.5)=11.8(322)8.4÷x=0.6(323)14x÷7=22(324)8.5+7x=23.9(325)61-5x=31(326)40x÷80=0.2(327)x-32=35(328)184-4x=164(329)4x-3×0.4=6.4(330)11x-10×5=93(331)18.1-0.7x=1.3(332)22x-24×5=78(333)3x=90(334)3x=2.7(335)x÷12=9(336)4x+7x+7=106(337)0.9x+0.2x-2.1=54(338)(18x-26)÷2=41(339)1.2x+0.2×16=16.4(340)x+3.5=13.1(341)14.2+1.3x=23.3(342)20x-8x-1.9=46.1(343)16.1+0.4x=29.3(344)5x+12x-44=228(345)40+x=126(346)1.2x+0.4×44=20(347)14.1+15x=17.1(348)0.6x-0.3x=15.6(349)4(0.9x+2.2)=30.4(350)12.4÷x=3.1(351)2x+9×18=360(352)2x+44=156(353)4x+3x+10=87(354)54x-20x-1.4=29.2(355)7.1x+0.5x+3.3=86.9(356)16÷x=8(357)9.8-0.4x=1(358)183+3x=381(359)2(28x-35)=98(360)192-18x=30(361)9.7x+1.9x=69.6(362)2(0.6x+8.2)=47.6(363)18÷x=0.2(364)18x-15x=33(365)10x=70(366)1.8x-0.6x+1.8=21(367)0.4x-1.9×6=2.6(368)7x+10x=34(369)38x-12x+2.3=43.9(370)176÷x=2(371)x-1.5=5.1(372)x-2.3=6.8(373)17x+40x-3.8=70.3(374)11x+5x=160(375)10.7+3x=13.7(376)5-10x=2(377)68x+74x+3.1=116.7(378)16.9-0.2x=6.1(379)18x+13×5=137(380)84-x=46(381)142+4x=250(382)(9.5x+8.2)÷7=6.6(383)0.6x+4.2x-3.5=30.1(384)11x-3x-33=87(385)0.2x+2.2×6=17.8(386)13x+55x+2.9=118.5(387)10x+17x+46=262(388)21+25x=196(389)x+1=10(390)5x+3.9=15.4(391)17.4+0.2x=34.4(392)x÷46=0.3(393)1x+0.2×29=19.8(394)2x+2.4=16.8(395)52+x=83(396)0.9x=10.8(397)28x-6×0.2=10(398)13.3÷x=1.9(399)2.7+1x=15.7(400)2(0.6x+3.5)=45.4(401)101+7x=122(402)(7x-12)÷9=15(403)(4.6x-2.5)÷3=9.9(404)10x+19x+2=205(405)13x+39×0.2=27.3(406)4x=10(407)(5.8x-7)÷4=5.5(408)2(x+15)=64(409)6.2x+2.1x+1.5=117.7(410)2.3x-2.9×3=2.8(411)(6x-9)÷7=15(412)16x-4x+27=147(413)15x+17×1.1=29.2(414)3.6x-0.2x=44.2(415)1.6x+4.8×2=16(416)1.1x-1.4×2=6(417)9.2x-6.8x-3.4=6.2(418)40x-20x-4=46(419)2.6x÷39=0.4(420)3(4x+4)=84(421)93+x=128(422)7.2x+2.7x=59.4(423)(8x+20)÷2=122(424)4x-2x=86(425)3x+3.3=12.9(426)14x+42×2=112(427)5(2x+17)=115(428)58x-5=12.4(429)3.2x-1.1x+1.2=7.5(430)4x+2x=72(431)2.2x+0.8x-0.5=95.5(432)8x-6x+20=54(433)2.5x-1.4x=35.2(434)6x=90(435)11x+2x+4.7=9.9(436)11.3-0.8x=9.7(437)4x÷2=1.2(438)110÷x=2(439)81-x=68(440)0.8x+4.9=20.9(441)2.3x-3.3=1.3(442)3.3-x=1.4(443)21+x=115(444)18-1.7x=2.7(445)2.6x+0.2x=36.4(446)4x-2x+39=139(447)x+3.3=7.9(448)9x-7x+36=80(449)37x-45=29(450)57x-3.5=13.6(451)0.8x+1.3=21.3(452)3.1x-0.9x-3.1=60.7(453)3(1.6x-1.6)=48(454)49x+14x-4.7=108.7(455)x÷27=0.7(456)16x-12x=20(457)1.1x÷5=3.3(458)6x+2x-17=111(459)18x-4×0.2=10(460)10.9+3.7x=18.3(461)14.5-14x=4.7(462)5.6+x=12.3(463)7+x=9.8(464)x÷3=32(465)8.3x+1.3x=57.6(466)x+46=63(467)48x+76x+1=87.8(468)x-6.4=3.2(469)7.1-x=5.2(470)2x-4×10=40(471)2.3x-3.7=7.8(472)79-x=12(473)(7.5x+7.6)÷2=33.8(474)6.5x+7x-4=185(475)12x÷16=3(476)75x+40x-3.2=65.8(477)x+2.4=8.1(478)17.7-18x=5.1(479)1.2x+1.4x+2.5=181.9(480)5x-38=132(481)2(2.3x+8.2)=34.8(482)2x+3×56=322(483)11x+51=150(484)3x-5×24=63(485)20(x+3)=140(486)x-8=12(487)4.8x+5.7=20.1(488)16.8÷x=2.1(489)31x-17x+2=6.2(490)1x-0.8x-1.6=14(491)1.2x+3.5=11.9(492)x-58=26(493)168-31x=44(494)(3x-0.3)÷3=8.9(495)5x÷15=0.8(496)6.2x+5.3=23.9(497)17x-4×1.8=4.7(498)3.2x-4.9=4.7(499)8.3x-0.8x+2.3=92.3(500)10x+8x+13=265(501)14x+26×0.4=24.4(502)14x-2x-49=59(503)3x-26=52(504)2(3x+42)=120(505)x-2.9=2.5(506)30x÷36=0.5(507)(5.1x-9)÷36=2.3(508)9.3x-4.7x-1.5=39.9(509)12x+29x-3.8=74.1(510)x÷2=2.2(511)0.5x=7(512)12x-2×0.5=6.2(513)(6.3x+6.4)÷5=3.8(514)4x÷2=42(515)19x+8x=270(516)1.8x-5.6=8.8(517)5.1x+2.3x=111(518)0.7x÷8=1.4(519)19.8÷x=0.3(520)8.7x-5x+3.5=10.9(521)4.4x+5.2=22.8(522)171-3x=24(523)15.2+9x=27.8(524)2x=186(525)x+5.7=6.5(526)7.8+29x=25.2(527)40x-23x-1.6=20.5(528)2.5x=12.5(529)2(2.3x+4.7)=23.2(530)0.4x=9.2(531)18.1-8x=8.5(532)81-x=43(533)(5.9x+8.6)÷4=5.1(534)0.8x-1.4=18.6(535)2x+1.7=2.3(536)33x-14x+3.1=22.1(537)98x+87x+4.5=134(538)66-x=50(539)3x=24(540)9x+5.9=11.3参考答案(1)x=11(2)x=2(3)x=2.1(4)x=48(5)x=47(6)x=19(7)x=1(8)x=21(9)x=2(10)x=65(11)x=10(12)x=3(13)x=36(14)x=19(15)x=22(16)x=99(17)x=0.6(18)x=14(19)x=10(20)x=2.4(21)x=18.4(22)x=3(23)x=0.2(24)x=6.9(25)x=14(26)x=3.3(27)x=9(28)x=45(29)x=10(30)x=3.9(31)x=88(32)x=1.5(33)x=10(34)x=47(35)x=2.1(36)x=11(37)x=21(38)x=4(39)x=16(40)x=3(41)x=4(42)x=14(43)x=3.4(44)x=9(45)x=28(46)x=7(47)x=1.3(48)x=14(49)x=75(50)x=6.6(51)x=52(52)x=3(53)x=6(54)x=3(55)x=33(56)x=53(57)x=0.6(58)x=4(59)x=7(60)x=2(61)x=21(62)x=6(63)x=8.5(64)x=99(65)x=4(66)x=12(67)x=9(68)x=0.3(69)x=7.7(70)x=21(71)x=3.7(72)x=8(73)x=18(74)x=1(75)x=4(76)x=10(77)x=21(78)x=3(79)x=4.5(80)x=7(81)x=4(82)x=2.6(83)x=6(84)x=2(85)x=5(86)x=2(87)x=7(88)x=0.6(89)x=3(90)x=1.7(91)x=13(92)x=2(93)x=1.3(94)x=7.7(95)x=18(96)x=4(97)x=11(98)x=96(99)x=2(100)x=78(101)x=5(102)x=19(103)x=73(104)x=80(105)x=6(106)x=7(107)x=2(108)x=1.2(109)x=4(110)x=13(111)x=57(112)x=8(113)x=35(114)x=14(115)x=3.7(116)x=9(117)x=8.2(118)x=4(119)x=90(120)x=8(121)x=9(122)x=4(123)x=3(124)x=28(125)x=1.6(126)x=7(127)x=0.6(128)x=8.8(129)x=7.9(130)x=8(131)x=1(132)x=14.4(133)x=2.9(134)x=0.4(135)x=8(136)x=82(137)x=8(138)x=54(139)x=4.5(140)x=6(141)x=4(142)x=6(143)x=0.4(144)x=4(145)x=39(146)x=4(147)x=0.9(148)x=6.2(149)x=2.5(150)x=8.9(151)x=11(152)x=43(153)x=17(154)x=14(155)x=33(156)x=1.5(157)x=0.7(158)x=9(159)x=180(160)x=1.2(161)x=4(162)x=0.8(163)x=3(164)x=2(165)x=10(166)x=4(167)x=117(168)x=5(169)x=9(170)x=17(171)x=5(172)x=4(173)x=4(174)x=1(175)x=0.5(176)x=3(177)x=2(178)x=0.9(179)x=20(180)x=35(181)x=4(182)x=180(183)x=0.5(184)x=19(185)x=25(186)x=67(187)x=0.9(188)x=11(189)x=1.3(190)x=1(191)x=10(192)x=24(193)x=8(194)x=13(195)x=0.2(196)x=43(197)x=2(198)x=15(199)x=32(200)x=7(201)x=8(202)x=23(203)x=2.5(204)x=1.6(205)x=9.6(206)x=14(207)x=0.5(208)x=1.1(209)x=10(210)x=3(211)x=0.9(212)x=50(213)x=70(214)x=27(215)x=10(216)x=17(217)x=12(218)x=28(219)x=5(220)x=56(221)x=3(222)x=3(223)x=30(224)x=2(225)x=0.2(226)x=23(227)x=2(228)x=6(229)x=11(230)x=6(231)x=2.6(232)x=7(233)x=15(234)x=2(235)x=4.1(236)x=17(237)x=14(238)x=2(239)x=11(240)x=23(241)x=6.5(242)x=46(243)x=4.3(244)x=23(245)x=62(246)x=2.8(247)x=8(248)x=32(249)x=8(250)x=3(251)x=3(252)x=14.4(253)x=4(254)x=8(255)x=1.1(256)x=16(257)x=5(258)x=1.9(259)x=22(260)x=3(261)x=153(262)x=17(263)x=4(264)x=59(265)x=1.1(266)x=0.4(267)x=8(268)x=2(269)x=19(270)x=0.2(271)x=60(272)x=36(273)x=31(274)x=2(275)x=9(276)x=20(277)x=0.7(278)x=30(279)x=2.6(280)x=62(281)x=2.7(282)x=34(283)x=9.4(284)x=9(285)x=0.5(286)x=2(287)x=8(288)x=89(289)x=19(290)x=4(291)x=2.8(292)x=7(293)x=1(294)x=10(295)x=3(296)x=19(297)x=3(298)x=15(299)x=1.9(300)x=15(301)x=1.3(302)x=3(303)x=6(304)x=47(305)x=1.9(306)x=1.7(307)x=0.9(308)x=5(309)x=2(310)x=8(311)x=0.3(312)x=6(313)x=89(314)x=52(315)x=3(316)x=2(317)x=3(318)x=13(319)x=1.9(320)x=1(321)x=2(322)x=14(323)x=11(324)x=2.2(325)x=6(326)x=0.4(327)x=67(328)x=5(329)x=1.9(330)x=13(331)x=24(332)x=9(333)x=30(334)x=0.9(335)x=108(336)x=9(337)x=51(338)x=6(339)x=11(340)x=9.6(341)x=7(342)x=4(343)x=33(344)x=16(345)x=86(346)x=2(347)x=0.2(348)x=52(349)x=6(350)x=4(351)x=99(352)x=56(353)x=11(354)x=0.9(355)x=11(356)x=2(357)x=22(358)x=66(359)x=3(360)x=9(361)x=6(362)x=26(363)x=90(364)x=11(365)x=7(366)x=16(367)x=35(368)x=2(369)x=1.6(370)x=88(371)x=6.6(372)x=9.1(373)x=1.3(374)x=10(375)x=1(376)x=0.3(377)x=0.8(378)x=54(379)x=4(380)x=38(381)x=27(382)x=4(383)x=7(384)x=15(385)x=23(386)x=1.7(387)x=8(388)x=7(389)x=9(390)x=2.3(391)x=85(392)x=13.8(393)x=14(394)x