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)12(x-4.1)=34.8(2)8x-1.9x=48.8(3)x-2=3.8(4)3(8x+31)=189(5)14x-7x-20=57(6)x-51=27(7)x÷12=10(8)55x-6x+4.9=39.2(9)15.4÷x=1.1(10)x÷7=23(11)131+9x=293(12)x÷2=16(13)3.7x-3.5x+3.1=4.3(14)91-x=48(15)89x-9x+1.9=41.9(16)9.5-x=6.3(17)8x=144(18)55x+18x+2.8=46.6(19)34x-20x+3.2=24.2(20)11+34x=17.8(21)18x+13x-38=303(22)8x-4x+5=97(23)2(2x-18)=136(24)1.4x+2.2=7.8(25)16x+22=118(26)x+80=139(27)(9.3x-0.7)÷34=0.8(28)3x÷7=18(29)(4x+3.1)÷37=0.3(30)13x+32×0.2=20.7(31)3.5x+5x+4.6=174.6(32)10x-45=35(33)1.5x+3.3x=24(34)6x-4x-13=33(35)x+4.8=5.8(36)6.6x-5.8x=8.8(37)1.3x+0.3×29=24.3(38)9(x-22)=108(39)9x-4x+48=148(40)x÷6=29(41)39+x=51(42)x+4.2=12.4(43)17.1-0.9x=9(44)24x÷28=0.6(45)3.7x-3.2x=6(46)176-2x=14(47)11(2x-42)=176(48)36x÷27=4(49)8x+37×0.5=25.7(50)26x-3.3=7.1(51)69x+23x+3.2=67.6(52)6+3.8x=25(53)6.7-x=3.1(54)12x+6x-17=37(55)9.9÷x=1.1(56)17x+14x=310(57)0.7x-0.3×7=4.9(58)1.7x+3.9=22.6(59)6x+4×3.9=30(60)92-x=14(61)(14x+6)÷8=6(62)16.9-1.1x=13.6(63)29x+47x-2=142.4(64)12+x=50(65)146-8x=26(66)3.5x-2.8=7.7(67)x-1.9=3.7(68)9.3+0.8x=10.9(69)2.6x+2.9=13.3(70)2x-4=15.4(71)7.6x-1.8x-1.8=67.8(72)8.3-x=3.7(73)2x=94(74)16.3-12x=1.9(75)12.3-0.2x=2.9(76)5x÷13=10(77)4(24x-48)=192(78)0.4x+1.1×17=33.1(79)(9.6x-5.1)÷3=20.7(80)3(x+2.3)=33.9(81)4x-5.4=1.8(82)46x-32x+3.3=25.7(83)14x+53=235(84)17x-1.8=11.8(85)6.9+1.6x=22.9(86)2x+61×3=329(87)26+x=59(88)7x-4x-3=69(89)24(x+2)=96(90)4.4x-1.9x-1.4=28.6(91)7x-54=23(92)(2.4x+8.8)÷2=11.6(93)27x-5.7=2.4(94)2.6x-1.2x-1.1=49.3(95)6x+3.3=17.7(96)x+4.3=7.7(97)x-60=12(98)8.9x-1.6x-2.2=12.4(99)x-4.3=3.1(100)1.5x-2.5=5(101)3x=6(102)13x-2x+19=74(103)6.5x+7.3x+3.9=72.9(104)17.5+22x=21.9(105)4x+13x=102(106)(11x-14)÷6=27(107)4.8x+5.4x-4.3=46.7(108)0.4x-0.8×4=11.6(109)17x-10x+14=49(110)0.5x=7.5(111)23x=115(112)18.3-0.2x=12.7(113)3.5x+3.9x-2.2=64.4(114)9(0.4x+2.4)=32.4(115)16.4÷x=0.2(116)15.2+3x=31.1(117)33x=19.8(118)x-31=25(119)4.9x-3.6x=13(120)0.5x÷2=4.5(121)4x+2.1=18.1(122)x-7=27(123)19x-3×23=121(124)x+7=13.9(125)(3.4x+7.8)÷3=12.8(126)3.1x+2.2x=68.9(127)10x+1.8=8.8(128)5x-10=130(129)6.7-x=4.4(130)6.8x-2.2x-3.3=61.1(131)14x-4x=110(132)16x+39x-1.6=97.4(133)6.4x-4.9x+1.8=10.8(134)8x+3.4=13.8(135)10.2÷x=0.3(136)1x-5.2=2.8(137)9x-13=122(138)4x+21x-0.6=61.9(139)8(1.2x-2.9)=44(140)9.6x+7.9x+3.4=108.4(141)96x-25x-2.4=18.9(142)x÷22=7(143)14x+7x=168(144)24x+16×9=288(145)38x-21x-2=13.3(146)7x-5x=30(147)8x+2×55=206(148)120÷x=20(149)4x÷38=0.2(150)5x+13x+0.6=126.6(151)0.4+x=2.5(152)16x÷96=2(153)18.1+4.9x=27.9(154)138-29x=22(155)20x=140(156)7.6+2.7x=21.1(157)x+22=50(158)80-x=15(159)0.2x=19.4(160)6x÷75=0.2(161)(13x+18)÷3=58(162)93x-14x+3.6=43.1(163)44x+88x+0.3=119.1(164)(2x-13)÷23=1(165)27(2.9x-7.1)=43.2(166)12÷x=0.3(167)17x-11×5=64(168)198-38x=122(169)1x÷15=0.8(170)90÷x=5(171)9.4-x=2.2(172)0.5x+0.6×20=28(173)4x=4.4(174)17x-7x+32=72(175)9x+18x+19=154(176)(1.8x+5.4)÷6=5.7(177)(6.8x-3)÷3=12.6(178)x-0.5=7(179)4x+3×1.6=17.6(180)2(7x+15)=114(181)2x÷6=13(182)(8x+30)÷3=42(183)13x-38×0.2=8(184)19.6-2x=12.4(185)(4x+28)÷28=2(186)25x-14x-1.3=32.8(187)(3x+9)÷3=19(188)23x÷92=2(189)63-x=29(190)56x+52x-0.8=182.8(191)x-4.3=1.4(192)9x-2x-46=10(193)3.1x-1.8=13.7(194)2.5x÷5=2(195)9x-6x-10=56(196)6.1x-4.7x-1.1=5.9(197)91x+57=239(198)13x=26(199)19x+8x-41=202(200)12.1÷x=1.1(201)2x+41=191(202)17x+16×12=277(203)14x-7x=21(204)6x=54(205)4(0.4x-0.5)=42.8(206)2x+3x-2.2=22.8(207)6x+4x+23=323(208)3x-37=62(209)60-x=32(210)16x-4x=36(211)8.3-2x=2.5(212)132÷x=6(213)7x-2x-41=69(214)x-7=63(215)25x-15×5=100(216)66x-5.7=14.1(217)2x=5.6(218)51x-32x-4.5=24(219)0.3x-0.2×11=7.1(220)x+5.7=15.4(221)6x+10x-7=281(222)x+73=160(223)18x+18=126(224)0.5x-0.9×17=3.2(225)56x=11.2(226)19.4-92x=1(227)18.5-3.6x=11.3(228)3.4x-1.9x-0.3=14.7(229)2(0.6x+5.4)=14.4(230)143+4x=239(231)8.2+x=9.2(232)3(0.4x+3.6)=15.6(233)2.4x-0.9×4=6(234)51x+23x+4.2=48.6(235)2.6x=13(236)4x-12×0.9=2.8(237)x-8=47(238)x-27=49(239)0.3x=18.3(240)9.9+3x=20.7(241)7x+9×0.7=14.7(242)9x+13x=330(243)15x-11x=52(244)0.2x+5.8x=54(245)2.1x÷7=2.4(246)10.5÷x=2.1(247)111+28x=167(248)x-1.3=2.8(249)8.4x-6.5x-1.4=15.7(250)9.3÷x=3.1(251)1x+2.3×7=33.1(252)2(2.3x+1)=11.2(253)x+4.7=7.8(254)103+12x=271(255)7x+4x+14=223(256)12x+14×1=26(257)2x=13.8(258)10x=30(259)20x=10(260)1.2x÷36=0.2(261)15x÷5=39(262)7.8x÷6=2.6(263)3x÷9=2.1(264)3(0.6x+4)=31.8(265)3x-3.4=1.4(266)30+20x=170(267)10.6+0.2x=19.6(268)4(0.8x+1.4)=28(269)0.4x+2.4x=5.6(270)12+14x=16.2(271)3(1.7x-0.9)=7.5(272)135-5x=10(273)10x+16x+31=187(274)5.4x+8.3x=27.4(275)4.4x+3.4x-1.2=108(276)2.3x-1x=36.4(277)2x-0.5×37=1.5(278)20x-34×4=24(279)10(x-7.4)=26(280)0.7x÷13=1.4(281)47x+80x+2.5=129.5(282)64-x=13(283)4x+2×19=98(284)10(0.4x+1)=50(285)16x-6x=70(286)15x-5x-16=24(287)x÷16=10(288)x-5.6=2.7(289)x÷38=0.5(290)3(0.5x+1.9)=40.2(291)6.2x=12.4(292)x÷8=1.1(293)2(7x+42)=112(294)4.8x+1.5x+0.6=114(295)9.8x-5.7x+3.7=36.5(296)3x-46=149(297)48÷x=4(298)25x+16x-1.8=76.1(299)1.6x-4.4=6.8(300)9.5-26x=1.7(301)0.2x+1.3×8=18.6(302)13.9-0.2x=12.1(303)9x+11x-24=336(304)14x+15x=319(305)23x+20×0.5=14.6(306)2x+1.4x=78.2(307)(6.6x+8.8)÷19=2.2(308)36x+5.7=20.1(309)3x=18.6(310)0.5x-1.9=17.1(311)7x+13x-19=41(312)19.7-0.3x=14(313)29+24x=125(314)6(24x-32)=96(315)3.7x+1.4x-3.3=134.4(316)10x+23=133(317)1.8x-0.3x+0.7=15.7(318)62+2x=224(319)(7x-28)÷7=8(320)12x-4x-20=108(321)14x+11×1.3=22.7(322)2.4x+1.4×5=16.6(323)9.8-x=9.1(324)(8x-30)÷5=10(325)3x-3=2.1(326)63-x=47(327)13x÷4=3.9(328)3(10x+14)=162(329)x÷6=0.6(330)62+x=155(331)7x+9x-11=53(332)3x-26×2=83(333)162÷x=9(334)70+x=109(335)0.3x+2.4=9(336)x÷4=48(337)50x-25x+1=38.5(338)31x-2×3=9.5(339)14x-11x+45=60(340)3x+39×5=252(341)2(0.5x-2.9)=41.2(342)x-3.9=4.1(343)11x-1=6.7(344)3.3x-2.6x+0.9=8.6(345)0.2x+1.9=6.3(346)1.2x-0.5x=17.5(347)2x+2×97=256(348)0.5x-1.4×10=3.5(349)4.7x-1×14=4.8(350)4(4x+6)=88(351)19x-11x-4.8=8(352)8x+17=137(353)16x+81x+2.4=50.9(354)(9.3x+6)÷24=1.8(355)2.5+x=4.2(356)7.6+4x=13.6(357)99x-17x+4.6=62(358)(8.3x-9)÷20=3.7(359)5x-49=146(360)x÷44=0.4(361)5x=100(362)31x-15x-4.7=41.7(363)7.5+x=9.9(364)3(x+28)=96(365)14x+9x-7=246(366)4x+2.6=22.6(367)8+x=10.7(368)7x+4x-1.3=86.7(369)17x+4x-16=47(370)4x+42=86(371)9x-7×16=41(372)4(6x-23)=76(373)(5x+40)÷2=45(374)2x+8x=50(375)144÷x=3(376)(7x-3.8)÷8=10.9(377)x+38=63(378)3.7x+9.4x=65.5(379)7.6-x=5.9(380)7x+5x+17=245(381)(8.3x+4.5)÷3=9.8(382)5.2+x=12.7(383)14(x+8)=196(384)22x+4×2.2=28.6(385)(15x-21)÷18=3(386)13x-2×3.6=11(387)2x+13=213(388)10÷x=5(389)4x-30×0.4=5.2(390)8.2x+5.2x-2.8=144.6(391)(6.7x-2.9)÷5=15.5(392)x-3=71(393)5.6x-2.4x+3=15.8(394)144-2x=36(395)3.1x+3.2x-1.1=36.7(396)1.9x-1.5x+0.2=13(397)0.8x+0.8×5=14.4(398)x÷65=2(399)2x÷28=7(400)44-x=11(401)0.7x+2.9=12(402)2x+7×19=169(403)15.6-6x=7.8(404)181+36x=325(405)19x-14x=20(406)8.3x+9.2x=52.5(407)7.3x-3.1x+1.6=35.2(408)(7x+15)÷47=3(409)6x÷36=0.3(410)1.7x+0.4×18=10.6(411)16.4+4.5x=34.4(412)66x÷12=1.1(413)(4.9x-9.3)÷3=26.3(414)(5.4x+4.8)÷11=2.4(415)2x+4×33=270(416)(5x+31)÷16=11(417)2.1x-1.5x=5.4(418)1.8x-0.7×6=4.8(419)1.3x+4.8x-3.5=57.5(420)11x+1.2=16.6(421)x÷89=0.2(422)37x-9x-3.2=5.2(423)14+x=39(424)3x÷33=2(425)12x+3x+45=75(426)18.5+1x=21.5(427)x÷4=0.7(428)x÷31=0.2(429)17x-13x=28(430)14.4+37x=21.8(431)x+60=157(432)117+7x=250(433)13.3-26x=5.5(434)3(5x-42)=39(435)9.2x+4.6x-3.4=24.2(436)3x+4.4x+1.5=134.7(437)13x=11.7(438)5.9x-5x=7.2(439)x+5.9=13.2(440)x+84=175(441)30x+2.3=14.3(442)2(2x+38)=148(443)5.1x-4.6x=1(444)27x-4×1.5=2.1(445)81x-34x-3=6.4(446)12-3x=5.7(447)0.2x=6.4(448)x+9.8=18(449)2+x=9.6(450)3.2+19x=12.7(451)(7x-4)÷4=13(452)(2.7x+9)÷18=2(453)3.6+x=6(454)(2.2x-6.1)÷9=0.3(455)81x-65x-1.2=11.6(456)34x-20×0.3=4.2(457)6x+5.5=17.5(458)2x÷54=0.3(459)4x÷5=3.2(460)0.7x=15.4(461)10.8+0.4x=16.4(462)18x+8x+4.2=118.6(463)7.8x+5.7x+1.9=123.4(464)16.4-11x=8.7(465)115-17x=47(466)x+82=115(467)16x-8x+3=51(468)2x=168(469)x+2.1=5.3(470)4x+3x-0.6=17.6(471)7.2÷x=1.2(472)23x-12x+3.5=24.4(473)13x+7x+19=299(474)18x+1.4=19.4(475)4.2x+2.7×7=31.5(476)2x-3×14=116(477)x÷94=0.2(478)(2x+44)÷6=9(479)0.2x+6.2x+2.4=40.8(480)2x-20=154(481)1.6x+7.9x+1.7=58.7(482)40x+32x+0.8=51.2(483)35+x=61(484)16+12x=18.4(485)19x+2x=189(486)x-0.2=5.8(487)x-18=57(488)(6x-14)÷22=4(489)8x-4x-31=65(490)6(5x-22)=168(491)11x+7x+27=297(492)16-6x=4(493)48÷x=12(494)0.4x+5.6=14.8(495)10x-10×4=130(496)19.4-7.5x=4.4(497)1.5x+3.4x=88.2(498)(2.7x-9.8)÷2=3.2(499)3.4x-1.9=8.3(500)4x+2x+25=217(501)5x+7x=48(502)180÷x=36(503)74x+94x-4.2=130.2(504)7x+8x=90(505)138-9x=120(506)8(0.3x-8.8)=47.2(507)15x-45=150(508)10x-2×55=20(509)14x-4x=90(510)2.3x+9.5x+4.9=28.5(511)x÷50=0.3(512)9.4-x=6.5(513)78x+12x-1.5=88.5(514)1.4x-0.3x+1.7=33.6(515)9.6+x=11.4(516)7.6x-6.3x-4=5.1(517)173-2x=27(518)x+91=100(519)(9x-35)÷38=5(520)0.2x-2.1=16.3(521)16x=6.4(522)0.8x÷2=2.8(523)4x-2×3.1=11(524)95+x=184(525)8x-4x+19=67(526)20(3x-20)=200(527)x+77=95(528)12x-13×0.2=16.6(529)x÷17=9(530)6.2-x=1.7(531)53x-17x+4.2=54.6(532)69-x=14(533)28x÷8=2.1(534)2(5.7x-5)=47(535)13x-10x+39=51(536)30+x=85(537)7.2x=14.4(538)15x+4.4=19.4(539)2.6x-5.7=7.3(540)(11x-20)÷30=3参考答案(1)x=7(2)x=8(3)x=5.8(4)x=4(5)x=11(6)x=78(7)x=120(8)x=0.7(9)x=14(10)x=161(11)x=18(12)x=32(13)x=6(14)x=43(15)x=0.5(16)x=3.2(17)x=18(18)x=0.6(19)x=1.5(20)x=0.2(21)x=11(22)x=23(23)x=43(24)x=4(25)x=6(26)x=59(27)x=3(28)x=42(29)x=2(30)x=1.1(31)x=20(32)x=8(33)x=5(34)x=23(35)x=1(36)x=11(37)x=12(38)x=34(39)x=20(40)x=174(41)x=12(42)x=8.2(43)x=9(44)x=0.7(45)x=12(46)x=81(47)x=29(48)x=3(49)x=0.9(50)x=0.4(51)x=0.7(52)x=5(53)x=3.6(54)x=3(55)x=9(56)x=10(57)x=10(58)x=11(59)x=2.4(60)x=78(61)x=3(62)x=3(63)x=1.9(64)x=38(65)x=15(66)x=3(67)x=5.6(68)x=2(69)x=4(70)x=9.7(71)x=12(72)x=4.6(73)x=47(74)x=1.2(75)x=47(76)x=26(77)x=4(78)x=36(79)x=7(80)x=9(81)x=1.8(82)x=1.6(83)x=13(84)x=0.8(85)x=10(86)x=73(87)x=33(88)x=24(89)x=2(90)x=12(91)x=11(92)x=6(93)x=0.3(94)x=36(95)x=2.4(96)x=3.4(97)x=72(98)x=2(99)x=7.4(100)x=5(101)x=2(102)x=5(103)x=5(104)x=0.2(105)x=6(106)x=16(107)x=5(108)x=37(109)x=5(110)x=15(111)x=5(112)x=28(113)x=9(114)x=3(115)x=82(116)x=5.3(117)x=0.6(118)x=56(119)x=10(120)x=18(121)x=4(122)x=34(123)x=10(124)x=6.9(125)x=9(126)x=13(127)x=0.7(128)x=28(129)x=2.3(130)x=14(131)x=11(132)x=1.8(133)x=6(134)x=1.3(135)x=34(136)x=8(137)x=15(138)x=2.5(139)x=7(140)x=6(141)x=0.3(142)x=154(143)x=8(144)x=6(145)x=0.9(146)x=15(147)x=12(148)x=6(149)x=1.9(150)x=7(151)x=2.1(152)x=12(153)x=2(154)x=4(155)x=7(156)x=5(157)x=28(158)x=65(159)x=97(160)x=2.5(161)x=12(162)x=0.5(163)x=0.9(164)x=18(165)x=3(166)x=40(167)x=7(168)x=2(169)x=12(170)x=18(171)x=7.2(172)x=32(173)x=1.1(174)x=4(175)x=5(176)x=16(177)x=6(178)x=7.5(179)x=3.2(180)x=6(181)x=39(182)x=12(183)x=1.2(184)x=3.6(185)x=7(186)x=3.1(187)x=16(188)x=8(189)x=34(190)x=1.7(191)x=5.7(192)x=8(193)x=5(194)x=4(195)x=22(196)x=5(197)x=2(198)x=2(199)x=9(200)x=11(201)x=75(202)x=5(203)x=3(204)x=9(205)x=28(206)x=5(207)x=30(208)x=33(209)x=28(210)x=3(211)x=2.9(212)x=22(213)x=22(214)x=70(215)x=7(216)x=0.3(217)x=2.8(218)x=1.5(219)x=31(220)x=9.7(221)x=18(222)x=87(223)x=6(224)x=37(225)x=0.2(226)x=0.2(227)x=2(228)x=10(229)x=3(230)x=24(231)x=1(232)x=4(233)x=4(234)x=0.6(235)x=5(236)x=3.4(237)x=55(238)x=76(239)x=61(240)x=3.6(241)x=1.2(242)x=15(243)x=13(244)x=9(245)x=8(246)x=5(247)x=2(248)x=4.1(249)x=9(250)x=3(251)x=17(252)x=2(253)x=3.1(254)x=14(255)x=19(256)x=1(257)x=6.9(258)x=3(259)x=0.5(260)x=6(261)x=13(262)x=2(263)x=6.3(264)x=11(265)x=1.6(266)x=7(267)x=45(268)x=7(269)x=2(270)x=0.3(271)x=2(272)x=25(273)x=6(274)x=2(275)x=14(276)x=28(277)x=10(278)x=8(279)x=10(280)x=26(281)x=1(282)x=51(283)x=15(284)x=10(285)x=7(286)x=4(287)x=160(288)x=8.3(289)x=19(290)x=23(291)x=2(292)x=8.8(293)x=2(294)x=18(295)x=8(296)x=65(297)x=12(298)x=1.9(299)x=7(300)x=0.3(301)x=41(302)x=9(303)x=18(304)x=11(305)x=0.2(306)x=23(307)x=5(308)x=0.4(309)x=6.2(310)x=38(311)x=3(312)x=19(313)x=4(314)x=2(315)x=27(316)x=11(317)x=10(318)x=81(319)x=12(320)x=16(321)x=0.6(322)x=4(323)x=0.7(324)x=10(325)x=1.7(326)x=16(327)x=1.2(328)x=4(329)x=3.6(330)x=93(331)x=4(332)x=45(333)x=18(334)x=39(335)x=22(336)x=192(337)x=1.5(338)x=0.5(339)x=5(340)x=19(341)x=47(342)x=8(343)x=0.7(344)x=11(345)x=22(346)x=25(347)x=31(348)x=35(349)x=4(350)x=4(351)x=1.6(352)x=15(353)x=0.5(354)x=4(355)x=1.7(356)x=1.5(357)x=0.7(358)x=10(359)x=39(360)x=17.6(361)x=20(362)x=2.9(363)x=2.4(364)x=4(365)x=11(366)x=5(367)x=2.7(368)x=8(369)x=3(370)x=11(371)x=17(372)x=7(373)x=10(374)x=5(375)x=48(376)x=13(377)x=25(378)x=5(379)x=1.7(380)x=19(381)x=3(382)x=7.5(383)x=6(384)x=0.9(385)x=5(386)x=1.4(387)x=100(388)x=2(389)x=4.3(390)x=11(391)x=12(392)x=74(393)x=4(394)x