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)9.5-x=8.5(2)7x-3x+30=74(3)6x+9x+33=78(4)45x+18×0.6=24.3(5)38-x=35(6)8x-4x+44=72(7)4(4.3x-7.9)=37.2(8)x-25=63(9)41x-13x-3.9=18.5(10)10(3x-12)=120(11)13.1-3x=4.1(12)14.7-0.8x=4.3(13)7-x=5.3(14)15x-2x-48=95(15)46x-44×0.2=9.6(16)4(5.7x-8.7)=33.6(17)6.3+x=13.8(18)86x-1.4=15.8(19)1.4x+0.4×21=14(20)12.4+0.6x=30.4(21)x-32=15(22)2x+3x=160(23)16x-2×33=14(24)x+46=145(25)3(4.6x-2.5)=33.9(26)6x+2×97=242(27)8.4-x=2.9(28)(8.6x+2.4)÷21=3.8(29)6.9+x=12.7(30)4.8+4.2x=17.4(31)14x-2x+28=136(32)62+x=103(33)6x+10x+3=115(34)1.7+x=7.5(35)(1.6x-3.9)÷5=3.7(36)1.8x+7.3x=63.7(37)5.1x+5.3x=104(38)1.6x÷2=4(39)18.7+0.7x=29.9(40)15x=180(41)43x-2×3.2=6.5(42)7x-5x=34(43)6.8x+4.1x+2.3=89.5(44)4.7x-0.9×15=5.3(45)x÷19=0.5(46)2(0.6x+2.6)=36.4(47)16.9÷x=1.3(48)1.9x=13.3(49)17.9-2x=2.7(50)6.8x-3.1x-0.6=47.5(51)(18x-14)÷2=47(52)3x-6×17=96(53)6.5x-1.1x=70.2(54)6.1x=12.2(55)1.8x+4x+2.4=54.6(56)120+3x=189(57)5x+4.5=9.5(58)x÷23=0.2(59)6x-4.5x+1.6=6.1(60)1.7x-0.5x+4.7=46.7(61)2x+13x=90(62)7x-5.7=4.1(63)4x÷3=4.8(64)6.3x+3.8x-1.7=18.5(65)100÷x=2(66)4.3+35x=11.3(67)(4x-4.4)÷7=2.8(68)0.2x=8.6(69)86+5x=221(70)6.8x-2.8x-3=49(71)3(x+32)=141(72)112÷x=28(73)2x+25=121(74)8x+15×4=84(75)18.6÷x=0.3(76)1x-0.8x+1=9.6(77)12x-14×0.3=7.8(78)9.9x+9.3x+4.4=62(79)4.4x-1.8×3=3.4(80)x+1.2=4.1(81)121+10x=171(82)13.2÷x=0.3(83)8x+10×3=86(84)8.8x+4x-1.2=50(85)8.1x-3.9x=29.4(86)2(7x+48)=124(87)(14x-48)÷6=34(88)17.2-0.7x=14.4(89)x+0.6=9.7(90)(7.7x+5.8)÷3=19.9(91)0.5x+4.4=19.4(92)11.1+3x=20.4(93)x÷3=11(94)58x-51x+4.8=16(95)140÷x=14(96)88x=17.6(97)2.2x+5.8=16.8(98)2(1.6x+6.9)=29.8(99)80x-8x-2.7=62.1(100)0.6x-5=7(101)7(11x-3)=133(102)0.8x+3.2×4=17.6(103)2x+5.6x=30.4(104)4.9-x=3.4(105)5.8+29x=11.6(106)3.6x-0.5x-4.6=63.6(107)12x+2×4.6=16.4(108)68x-51x+4.8=9.9(109)23x-20×3=32(110)80x+55x+4.8=153.3(111)12x+15x+3=170.4(112)4(4x-38)=88(113)13x=104(114)3x+4x+11=193(115)9.9x-6.2x-3.9=18.3(116)4x+0.6×20=20(117)39x÷6=1.3(118)x÷56=3(119)28+x=38(120)2x+6x+21=61(121)2x÷30=4(122)(5.6x+5.9)÷27=2.5(123)95-x=42(124)13x-8x+22=32(125)2x+3×3.4=15.6(126)2x÷4=3.3(127)x+49=96(128)28x-4×4.4=2(129)43x-39x+3.4=5.8(130)x-3.3=1.9(131)89x-45x+3.7=43.3(132)4.5x+6.3x=97.2(133)1.7x÷68=0.2(134)x-0.9=5.3(135)(5x+41)÷32=3(136)3.2÷x=0.4(137)4.3x+6.9x-1.6=88(138)(10x-43)÷3=39(139)21x-13=92(140)7.5÷x=2.5(141)9x+92x-1.8=38.6(142)9x+5×32=304(143)(8.4x-6.3)÷39=0.7(144)8x+5×3.3=21.3(145)3.7x-1.5x=4.4(146)7.3x+3.1x-4.6=57.8(147)173-3x=95(148)150÷x=15(149)19.2÷x=0.3(150)41+x=49(151)4(0.9x+2.4)=38.4(152)44x-25x-0.3=28.2(153)17x-65×2=40(154)10x÷85=0.2(155)140÷x=35(156)2x-3.5=16.3(157)8x-2x=84(158)1x=16(159)0.2x÷17=0.6(160)4x+6x-49=21(161)28x÷7=2(162)13+x=100(163)0.5x-3.2=2.8(164)35x+87x+1.9=136.1(165)33x-5×0.4=11.2(166)11+18x=119(167)6.8x-4.9=8.7(168)51x-4.3=5.9(169)8x+34=218(170)13x-16×0.6=6(171)90-x=13(172)31x-20×0.5=2.4(173)16.3-0.9x=13.6(174)9.8x+2.9x+1.9=40(175)x÷11=1.1(176)x÷3=2.3(177)13x-5x-2=54(178)2x-3.3=1.7(179)x+5.4=10.9(180)9x+5.5=22.6(181)7x+15x=264(182)9.5-2x=2.9(183)12.9-2x=1.7(184)34+30x=184(185)21x+63x-1=15.8(186)4x=184(187)x+4.5=8.7(188)33÷x=3(189)0.3x-5.9=2.2(190)3x=6.6(191)x÷12=8(192)0.3x=16.2(193)4x+38x+2.9=40.7(194)20x+15x-3.2=21.3(195)42x+1.3=13.9(196)x-70=22(197)87+x=162(198)1.6x=19.2(199)(5.8x+9.4)÷6=12.2(200)1.3x+4=6.6(201)13x+11x+23=95(202)16x-46=50(203)x-6.7=1.9(204)2x÷6=3(205)17x-4×0.8=8.7(206)3.9x-1.4x+4.8=57.3(207)(4x+18)÷2=21(208)x+32=34(209)10x+8×14=272(210)(4x+36)÷28=2(211)18x-14x+44=84(212)7x-2x-17=113(213)0.4x-0.5×29=1.5(214)(14x+47)÷9=27(215)2x+6x-41=71(216)3x-4×5=64(217)(5.8x-1.6)÷24=3.8(218)84x+32x-4.7=64.9(219)0.4x-5.5=2.9(220)2(2x+31)=178(221)5x-3x=80(222)17.1-0.2x=3.1(223)4x÷80=0.2(224)x÷4=2(225)33x+5.2=18.4(226)13.5-3x=10.8(227)x÷2=46(228)2x+26=164(229)10(5x+8)=180(230)46+x=103(231)2.3x-3.2×4=1(232)3.6x-0.5×8=6.8(233)19x-7x=72(234)4x-3.9=14.5(235)3(x+34)=144(236)64+28x=260(237)11x=7.7(238)4x÷8=2(239)5.5x+2.9x=117.6(240)6x-3x-4.8=7.2(241)4x+15x-43=71(242)14x-8x=72(243)4.9+x=7.6(244)91x+31=213(245)5.2x+5.9x-4.7=17.5(246)1.3x+2.9x=117.6(247)2.3x-0.6x-1.7=54.4(248)38x+59=173(249)(2.5x-6)÷29=1(250)x+4.8=9.3(251)8x-5.7=2.3(252)33x=198(253)(6.7x+5.1)÷5=10.4(254)9.8+x=13.2(255)0.9x-3.8=14.2(256)172÷x=2(257)5x÷25=3(258)2x=70(259)6.6÷x=2.2(260)11x+5.8=17.9(261)15x+19x-9=331(262)5x-3x=32(263)2(2x+27)=170(264)2(2.2x+4.3)=17.4(265)5x+2×3.6=12.7(266)4x+5x+49=220(267)x-5=73(268)5.6x-3.5x-1.1=13.6(269)8(0.3x-6.3)=24(270)2.4+9x=5.1(271)x÷4=12(272)17x+18x=245(273)1.8x÷15=0.6(274)2x=13.8(275)4.4x-4.7=12.9(276)15.1+4x=27.1(277)16.4+3x=33.2(278)5.4+0.6x=14.4(279)12x-11=49(280)39x-28x-2.3=7.6(281)38x=15.2(282)0.4x+0.2×41=12.2(283)5.2÷x=1.3(284)3.5x+2.8=9.8(285)2x÷13=6(286)21x-16x+2.3=23.8(287)3x+7×2=161(288)3x+31=115(289)6x-2x-36=60(290)142+18x=340(291)0.2x=19.2(292)6x+15x+3.9=12.3(293)6x+3×2=102(294)x+80=153(295)4.4x-1.4x+1.6=10.6(296)3(1.4x+8.6)=38.4(297)x÷3=49(298)2(5.3x-1.2)=29.4(299)87-7x=45(300)2x÷64=0.3(301)11.7+2x=18.3(302)2x+2.1=15.3(303)15x-2x+20=85(304)7.6x+8x+2.1=95.7(305)(2.1x+3)÷15=0.9(306)2(3x+39)=180(307)x+26=104(308)12x+4x-46=162(309)1.6x+7.6x+2.4=30(310)7-x=2.8(311)x-0.5=2.3(312)1x+0.6x-1.7=47.9(313)1.9x-1.2x-4.2=13.3(314)(4x-6)÷3=30(315)(14x+2)÷2=127(316)76-x=46(317)x+9.7=16.7(318)78x+44=200(319)1.2x-0.5x+3.9=49.4(320)69-19x=12(321)1.3+3.5x=11.8(322)19-1.2x=16.6(323)x+32=107(324)8x÷6=20(325)17x-7x-27=83(326)x+9.7=15.5(327)9.9+x=19.4(328)18x+15x-3=63(329)2(0.3x+8.7)=23.4(330)17.1-5.8x=5.5(331)x÷63=3(332)x÷27=6(333)17x+3x-4.1=31.9(334)5(10x-12)=140(335)x-2.9=1.3(336)x-26=42(337)35x-42=63(338)17x+4x=42(339)14x-8x-13=11(340)3x+18x-2.7=81.3(341)14.3+10x=18.3(342)24+x=95(343)3x+7x+47=87(344)3(0.7x+9)=39.6(345)(9.6x+8.4)÷4=16.5(346)4.4x-0.5x=74.1(347)18x-14x=28(348)x-5.3=2.7(349)7.4x+8.7x=144.9(350)37x=18.5(351)9x+2x=110(352)2.3x-1.2x+1.3=25.5(353)16-3x=5.2(354)13x+12x=150(355)52x+2x-1.6=57.8(356)14x-11=73(357)10.4+21x=18.8(358)x-43=25(359)18x-2x=80(360)(9x-24)÷3=10(361)10.8+3.9x=30.3(362)4.2x+0.7×8=14(363)44x-8x+1.7=12.5(364)19x-30×0.2=13(365)7x-3x-0.5=39.5(366)2.5x+0.4×14=18.1(367)26-x=19(368)2.9x+3.6x-0.2=45.3(369)177-66x=45(370)17.7-0.3x=6.3(371)46x+31x-2.6=59(372)(15x-15)÷3=35(373)84-x=76(374)12.6÷x=0.7(375)2(6x-13)=70(376)13x-4x-3.2=34.6(377)5.1x+4.8x+4.7=192.8(378)2.7+0.4x=18.3(379)3.8x+4x=148.2(380)9x=19.8(381)1.6x=6.4(382)18x+3.8=7.4(383)x+29=55(384)(5x-48)÷14=3(385)0.2x+2.2×5=14.8(386)x+80=148(387)10x-3x-34=43(388)14x+13x=54(389)4(2x-27)=44(390)7.4-x=5(391)2x+27×2=216(392)(5.4x-5.6)÷7=4.6(393)8x+3×1.4=7.4(394)(7.7x-7.6)÷36=1.5(395)7.4x+3.8=18.6(396)2x+1.3=20.9(397)9x+8x+3=122(398)55x-35x+0.5=6.5(399)61-x=47(400)x+42=141(401)2x÷4=14(402)12x+7x+27=84(403)(17x+39)÷5=52(404)3.6+x=8.2(405)2(x+8)=42(406)x-4.4=1.3(407)(8.7x+7.4)÷2=29.8(408)1.7x-0.7x+0.3=43.3(409)2x=118(410)4÷x=2(411)2x-4.1=12.7(412)36x+1.7=19.7(413)13.4-0.2x=3.8(414)(x+17)÷2=12(415)x÷5=14(416)174-19x=60(417)40x+79x+1.8=132.7(418)9x+84×2=186(419)0.2x+5.7=23.5(420)8x-6x+39=83(421)167-2x=77(422)10x=12(423)2x÷14=6(424)2x+1.8=9.8(425)1.3x+6.4x+2.7=95.1(426)17x+2x-44=127(427)47x-20x-0.2=40.3(428)13x-11×4=86(429)4x=16(430)2(2x+30)=184(431)92+16x=236(432)32x-9x+3.7=12.9(433)25x=10(434)(9.8x+1)÷6=11.6(435)9.5x-5.6x=31.2(436)4.6x-3.2x=14(437)196-89x=18(438)109+10x=299(439)32x-48=80(440)23x-14=170(441)9.5x+0.8x-4=88.7(442)(8x-12)÷3=4(443)2x-2×23=76(444)(1.1x-1.5)÷8=0.5(445)2(26x-12)=132(446)3.7x+1.8x+4.3=130.8(447)97-x=34(448)70x+29x-0.7=38.9(449)x÷14=0.8(450)20x+18x+1.6=73.8(451)7.1-x=1.4(452)x÷21=0.5(453)175÷x=35(454)15x+25×0.6=25.5(455)3(x-29)=42(456)18x+3x+27=195(457)35x+21=161(458)13x+4×4.3=36.7(459)0.3x÷81=0.2(460)3x-28×2=49(461)45x-22x-3.8=14.6(462)7.5+x=8(463)x-16=19(464)16x-9x-9=19(465)144-9x=36(466)(7x+46)÷2=79(467)11x-2x-3=141(468)0.2x-0.3×5=3.1(469)0.2x÷42=0.3(470)0.9x+2.2x-1.1=119.8(471)5.3x=10.6(472)0.6x-3.5=9.1(473)27x=189(474)99-x=92(475)11x=165(476)0.6x÷90=0.2(477)28(1.3x-4.1)=30.8(478)7(13x-13)=182(479)44x-41=135(480)8x-6x+13=59(481)17.7+3x=26.7(482)10+x=101(483)3x+7.1x=40.4(484)0.3x-5.6=1(485)0.4x-0.9×11=4.5(486)1.6x-0.9x=20.3(487)22x÷4=1.1(488)1.6x+5.5=15.1(489)1.1x+3.8=18.1(490)13x-3x+47=167(491)8(1.4x-7.5)=40.8(492)8x÷36=4(493)13x+12x-3=97(494)15x-5x=80(495)x-73=23(496)22x÷4=11(497)82x-26x-3=53(498)18.3-2x=7.1(499)0.9x+0.3×11=19.5(500)75-21x=12(501)4(4.4x+0.9)=38.8(502)15x+48=228(503)1.9x-0.2×28=11.5(504)2(0.5x+4)=16(505)14.2-4x=11(506)7.3x-1.7x+3.9=71.1(507)4.6x-3x=30.4(508)13.7-3x=11.6(509)3x-3×13=51(510)6.1+x=10(511)x+5.7=10.9(512)31+x=81(513)x÷3=1.9(514)9x÷3=39(515)x-0.4=6.1(516)17x-2.8=15.9(517)x-4=3.9(518)x÷66=0.3(519)1.5x+0.7×24=19.8(520)58x-50x+3.5=9.9(521)6-x=5.8(522)x+7.4=16.8(523)1.4x-0.8×5=10(524)4.1x-3.3x=13.6(525)11(3.7x-7.9)=35.2(526)5.9x-4x-4.9=4.6(527)(4x+19)÷27=5(528)12.9+61x=31.2(529)x-13=42(530)6x-46=38(531)7x+3×4=28.8(532)15x+7x=198(533)20(0.3x-3)=36(534)72x÷3=4.8(535)10x+18x-43=125(536)(6x-48)÷4=15(537)9.8-x=6.6(538)(8.1x-0.9)÷10=7.2(539)15.1-69x=1.3(540)31x+5x+3=35.4参考答案(1)x=1(2)x=11(3)x=3(4)x=0.3(5)x=3(6)x=7(7)x=4(8)x=88(9)x=0.8(10)x=8(11)x=3(12)x=13(13)x=1.7(14)x=11(15)x=0.4(16)x=3(17)x=7.5(18)x=0.2(19)x=4(20)x=30(21)x=47(22)x=32(23)x=5(24)x=99(25)x=3(26)x=8(27)x=5.5(28)x=9(29)x=5.8(30)x=3(31)x=9(32)x=41(33)x=7(34)x=5.8(35)x=14(36)x=7(37)x=10(38)x=5(39)x=16(40)x=12(41)x=0.3(42)x=17(43)x=8(44)x=4(45)x=9.5(46)x=26(47)x=13(48)x=7(49)x=7.6(50)x=13(51)x=6(52)x=66(53)x=13(54)x=2(55)x=9(56)x=23(57)x=1(58)x=4.6(59)x=3(60)x=35(61)x=6(62)x=1.4(63)x=3.6(64)x=2(65)x=50(66)x=0.2(67)x=6(68)x=43(69)x=27(70)x=13(71)x=15(72)x=4(73)x=48(74)x=3(75)x=62(76)x=43(77)x=1(78)x=3(79)x=2(80)x=2.9(81)x=5(82)x=44(83)x=7(84)x=4(85)x=7(86)x=2(87)x=18(88)x=4(89)x=9.1(90)x=7(91)x=30(92)x=3.1(93)x=33(94)x=1.6(95)x=10(96)x=0.2(97)x=5(98)x=5(99)x=0.9(100)x=20(101)x=2(102)x=6(103)x=4(104)x=1.5(105)x=0.2(106)x=22(107)x=0.6(108)x=0.3(109)x=4(110)x=1.1(111)x=6.2(112)x=15(113)x=8(114)x=26(115)x=6(116)x=2(117)x=0.2(118)x=168(119)x=10(120)x=5(121)x=60(122)x=11(123)x=53(124)x=2(125)x=2.7(126)x=6.6(127)x=47(128)x=0.7(129)x=0.6(130)x=5.2(131)x=0.9(132)x=9(133)x=8(134)x=6.2(135)x=11(136)x=8(137)x=8(138)x=16(139)x=5(140)x=3(141)x=0.4(142)x=16(143)x=4(144)x=0.6(145)x=2(146)x=6(147)x=26(148)x=10(149)x=64(150)x=8(151)x=8(152)x=1.5(153)x=10(154)x=1.7(155)x=4(156)x=9.9(157)x=14(158)x=16(159)x=51(160)x=7(161)x=0.5(162)x=87(163)x=12(164)x=1.1(165)x=0.4(166)x=6(167)x=2(168)x=0.2(169)x=23(170)x=1.2(171)x=77(172)x=0.4(173)x=3(174)x=3(175)x=12.1(176)x=6.9(177)x=7(178)x=2.5(179)x=5.5(180)x=1.9(181)x=12(182)x=3.3(183)x=5.6(184)x=5(185)x=0.2(186)x=46(187)x=4.2(188)x=11(189)x=27(190)x=2.2(191)x=96(192)x=54(193)x=0.9(194)x=0.7(195)x=0.3(196)x=92(197)x=75(198)x=12(199)x=11(200)x=2(201)x=3(202)x=6(203)x=8.6(204)x=9(205)x=0.7(206)x=21(207)x=6(208)x=2(209)x=16(210)x=5(211)x=10(212)x=26(213)x=40(214)x=14(215)x=14(216)x=28(217)x=16(218)x=0.6(219)x=21(220)x=29(221)x=40(222)x=70(223)x=4(224)x=8(225)x=0.4(226)x=0.9(227)x=92(228)x=69(229)x=2(230)x=57(231)x=6(232)x=3(233)x=6(234)x=4.6(235)x=14(236)x=7(237)x=0.7(238)x=4(239)x=14(240)x=4(241)x=6(242)x=12(243)x=2.7(244)x=2(245)x=2(246)x=28(247)x=33(248)x=3(249)x=14(250)x=4.5(251)x=1(252)x=6(253)x=7(254)x=3.4(255)x=20(256)x=86(257)x=15(258)x=35(259)x=3(260)x=1.1(261)x=10(262)x=16(263)x=29(264)x=2(265)x=1.1(266)x=19(267)x=78(268)x=7(269)x=31(270)x=0.3(271)x=48(272)x=7(273)x=5(274)x=6.9(275)x=4(276)x=3(277)x=5.6(278)x=15(279)x=5(280)x=0.9(281)x=0.4(282)x=10(283)x=4(284)x=2(285)x=39(286)x=4.3(287)x=49(288)x=28(289)x=24(290)x=11(291)x=96(292)x=0.4(293)x=16(294)x=73(295)x=3(296)x=3(297)x=147(298)x=3(299)x=6(300)x=9.6(301)x=3.3(302)x=6.6(303)x=5(304)x=6(305)x=5(306)x=17(307)x=78(308)x=13(309)x=3(310)x=4.2(311)x=2.8(312)x=31(313)x=25(314)x=24(315)x=18(316)x=30(317)x=7(318)x=2(319)x=65(320)x=3(321)x=3(322)x=2(323)x=75(324)x=15(325)x=11(326)x=5.8(327)x=9.5(328)x=2(329)x=10(330)x=2(331)x=189(332)x=162(333)x=1.8(334)x=4(335)x=4.2(336)x=68(337)x=3(338)x=2(339)x=4(340)x=4(341)x=0.4(342)x=71(343)x=4(344)x=6(345)x=6(346)x=19(347)x=7(348)x=8(349)x=9(350)x=0.5(351)x=10(352)x=22(353)x=3.6(354)x=6(355)x=1.1(356)x=6(357)x=0.4(358)x=68(359)x=5(360)x=6(361)x=5(362)x=2(363)x=0.3(364)x=1(365)x=10(366)x=5(367)x=7(368)x=7(369)x=2(370)x=38(371)x=0.8(372)x=8(373)x=8(374)x=18(375)x=8(376)x=4.2(377)x=19(378)x=39(379)x=19(380)x=2.2(381)x=4(382)x=0.2(383)x=26(384)x=18(385)x=19(386)x=68(387)x=11(388)x=2(389)x=19(390)x=2.4(391)x=81(392)x=7(393)x=0.4(394)x=