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)14.8+42x=31.6(2)1.2x+3.5=11.9(3)5x-50=35(4)8(1.7x-5.7)=36(5)2(4x-10)=116(6)(7x-27)÷5=10(7)0.5x-1.9×6=4.6(8)2x=14.6(9)52+x=118(10)11x+8x-6=317(11)18.5+0.6x=25.7(12)3.9x-1.1x=39.2(13)9.3-x=3(14)x-5=47(15)(6.2x-6.8)÷16=5(16)x-26=68(17)5(7x+10)=120(18)x-3.4=1.1(19)2x÷4=3.9(20)10.3-8x=2.3(21)2.4x+0.4×16=18.4(22)5.6+4x=21.6(23)3.8x-1.7×8=1.6(24)(5x+9)÷24=1(25)6x+4x-18=232(26)x+0.8=8.9(27)16x-5×0.2=10.2(28)199+14x=381(29)7.8+x=15.3(30)7x+4×5=139(31)14x+15x-10=77(32)9.5x-6.9x-2.2=21.2(33)x÷6=6(34)2(2x-26)=140(35)44x+3×1.3=21.5(36)10x+27×0.3=22.1(37)10x+5x+47=212(38)10.6÷x=0.2(39)(14x-44)÷12=1(40)5x=19(41)(8.2x-7.1)÷15=3.9(42)108+31x=201(43)9.8+2.1x=18.2(44)14x+43×0.4=32.6(45)47x+5x-1.5=8.9(46)30x+35x-0.4=155.6(47)3x÷7=0.9(48)14(0.4x-1.4)=42(49)7.1-x=3(50)4.1x=8.2(51)14x-6x-7=33(52)1x+0.9x-2.4=140.1(53)(x+5.8)÷4=2.2(54)9x-3x-6=60(55)2.2+0.2x=10.8(56)19.5-0.3x=11.7(57)39x-13x+2.1=7.3(58)3x-2.2=15.8(59)16x=64(60)15.4+1.5x=19.9(61)(2x+43)÷11=7(62)x+95=108(63)6x+5×10=104(64)7x+13x-36=164(65)6x-4x+20=72(66)0.2x+2.7=18.5(67)1.8x+0.3x+4.4=52.7(68)8.5-x=3.3(69)x÷3=32(70)13.8-3.1x=4.5(71)14x-11x=18(72)44x+5.5=14.3(73)5(6x-6.4)=28(74)18-14x=6.8(75)40x-5x-4.4=16.6(76)x-0.9=9(77)44+x=113(78)17x-47=140(79)4.1x-0.2×22=3.8(80)7x-5.5=7.1(81)1.8x+0.4×14=20(82)71+x=73(83)8x+3x=231(84)15x-13=137(85)x+90=124(86)42x÷6=2.8(87)10x-9×11=91(88)x÷15=0.4(89)7.2x+3x=61.2(90)4(0.7x+1.6)=17.6(91)11x-4x+11=60(92)4(12x-38)=184(93)9x+17x=182(94)(4.9x-1.6)÷25=1.7(95)3x+2×55=137(96)7x-4x-37=11(97)4(4x+14)=168(98)14.1-23x=9.5(99)6.7x-5.8x+3.5=12.5(100)6.6x÷11=1.8(101)(19x+20)÷2=29(102)15.2-5x=14.2(103)5.7+x=7.4(104)1.7x-0.5x-0.3=8.1(105)5x+2x+22=183(106)2(6x-28)=196(107)2x+41x+0.7=86.7(108)35x-6x+2.6=8.4(109)13x-8x-5=50(110)18x-8x-8=32(111)0.3x=12.9(112)0.3x-3.3=2.7(113)43x+29x-3.3=39.9(114)2.5x-2.2x-2.3=1.6(115)7x-2×38=29(116)7.7-x=1.1(117)0.3x+3=7.2(118)x-11=49(119)98x+92x-0.6=75.4(120)12x+7x+8=103(121)8.7x=17.4(122)0.4x+3.3×6=30.2(123)1.1x-0.9×4=16.2(124)6x-33=123(125)x÷10=1.4(126)116÷x=29(127)4x-0.4×10=12(128)9.7x-2.4=17(129)9x+12×2=186(130)7(1.5x-2.9)=42.7(131)5x-2x+41=143(132)4.9+x=14(133)(18x+48)÷8=24(134)8x+12x=220(135)10(x-26)=180(136)6x-2x+19=107(137)x÷14=1.3(138)2x+13=99(139)x÷7=2.3(140)8x+11x+35=149(141)5x+9x+2.5=38.9(142)195+19x=271(143)5x-2.1x+0.8=12.4(144)13x÷26=3(145)4.4x-0.4x-0.2=83.8(146)8x+10x=72(147)1.9x=19(148)2.9x+9.6x=112.5(149)6.6x-5.2x=7(150)8x-6x-1.9=3.5(151)5x-25=30(152)0.2x+2.7=3.9(153)9.1x+7x-2.5=29.7(154)(6x-15)÷9=15(155)12x-8x=36(156)64x-3.1=16.1(157)5x=185(158)88x÷16=11(159)17x+9x+11=271(160)2(1.3x-2.4)=31.6(161)43x-23x-2.6=25.4(162)0.2x=7.2(163)58x-15x+4.1=77.2(164)53+x=71(165)(6x-48)÷18=4(166)4x+4.3=15.1(167)13x-1.6=14(168)9x+4x-28=102(169)78x-39x+3.2=42.2(170)x÷20=0.5(171)14.8÷x=0.2(172)3x-5×1.1=1.4(173)5.7x-4.8x-3.1=4.1(174)6x-4x+13=35(175)8.4x+0.6x-2.2=60.8(176)x-60=11(177)0.6x+5.6=22.4(178)29+x=69(179)5.8x-1.9x+2.8=22.3(180)1.7x+3x=122.2(181)8.6-0.3x=7.1(182)95-x=38(183)5x-2.1=5.4(184)0.9x÷7=2.7(185)4x+3x=217(186)4(8x-26)=120(187)1.3x+0.6×16=18.7(188)13x-2x=165(189)6.4x+7.3x-3.8=160.6(190)5.7÷x=1.9(191)2(1.1x+1.1)=46.2(192)12x+11x+38=153(193)(10x+9)÷3=13(194)11x-2x=54(195)7x=189(196)14x+2x=144(197)66+26x=118(198)196÷x=28(199)x-42=38(200)6.6x-1.8x=24(201)x÷9=1.4(202)x+85=125(203)93-x=53(204)x÷8=8(205)0.2x÷4=1(206)x-3.9=3.6(207)x÷7=20(208)4.8+x=5.6(209)1.2x-0.2×34=11.2(210)0.3x-3.3=8.4(211)5.9-x=1(212)x÷8=2(213)10x+33=93(214)3.1x+5.2=23.8(215)117÷x=39(216)4x+2.4=12.4(217)19.7-0.4x=7.7(218)18x+23=113(219)3x-11×9=18(220)63-4x=23(221)5.1x+3.8x+2.2=46.7(222)3x-1.6=11(223)x+2.6=10.4(224)0.5x+0.4×7=8.3(225)67x+62x+2.6=118.7(226)0.4x+5.5=11.5(227)57-x=31(228)3x+3×0.6=6(229)48x+16×0.7=30.4(230)5.3x-4.1x+1.8=7.8(231)12x+30=138(232)0.2x÷30=0.6(233)27x=54(234)4.7+x=7.3(235)13.8+4x=16.6(236)4(2.7x+4)=37.6(237)110-2x=60(238)3.4+18x=19.6(239)2.6x-0.7x=30.4(240)x+1.9=6(241)16x-8x=80(242)7x+4.5x-3.3=111.7(243)1.1x+3.6x+4.9=19(244)76-2x=46(245)17x-11x+6=48(246)5.5+7x=11.1(247)17.9-1.9x=6.5(248)5x÷30=2(249)3.4x+5.7x-2.8=70(250)2x=17.2(251)9.7x-6.5x+0.3=9.9(252)17x=68(253)(5.1x-8.3)÷14=0.5(254)3x+2.7=21(255)6.1x+1.9x+3.4=51.4(256)2.8+x=7.5(257)x÷2=17(258)9x=13.5(259)17.8-0.2x=12.4(260)x+9.3=10.5(261)38x-20x-4=37.4(262)6x+3×29=219(263)11x-9x+0.2=12.6(264)33x+4=17.2(265)28x-50=34(266)35x+8x+4.9=73.7(267)(8.7x+5.1)÷27=1.8(268)30-10x=10(269)98-20x=18(270)x+2=7.9(271)3x-59=121(272)x-11=61(273)(6.5x+9.5)÷20=2.1(274)37x+12=123(275)28x-25×2=34(276)4x+18x-10=188(277)39+37x=150(278)13x+69x+2=18.4(279)8.5x+3.1x=104.4(280)3x+57=153(281)4x=156(282)2.1x=10.5(283)(10x+34)÷2=102(284)5x-1.3x=51.8(285)87+x=129(286)66-x=34(287)3x-38×0.2=3.2(288)x+74=141(289)0.6x÷14=0.9(290)7x-3x-22=50(291)5x=4(292)16x+17x-2=163(293)6.6+x=7.7(294)4(2x-14)=72(295)2x-3×7=75(296)2(4.8x+2.7)=43.8(297)44÷x=22(298)15x+52=247(299)(4.8x-2.1)÷3=16.9(300)x+47=110(301)1x+3.9×4=32.6(302)69x+96x-2.1=63.9(303)7÷x=0.5(304)5x-3.5=16.5(305)13x-10x+11=26(306)48x-22x+2.3=10.1(307)34x+46x-0.5=39.5(308)5(0.4x+8)=44(309)18x-4×0.3=18.6(310)0.9x÷27=0.4(311)7.8-x=1.5(312)13+x=32(313)7x+12x=114(314)x-23=26(315)31x-7x-1.5=65.7(316)(11x-15)÷3=17(317)16x+10x+3=109.6(318)2.9x+6.3x-1.7=25.9(319)2x+29=199(320)7.4x-2.8=12(321)9.2-5x=6.7(322)x-1.5=2(323)5x=17.5(324)0.5x-0.2×13=13.9(325)8.1x-7.2x-1.8=2.7(326)41-x=32(327)(5.5x-4.4)÷4=15.4(328)x÷64=3(329)1.7x+3.5x=72.8(330)x-0.2=7.9(331)x-6.4=2.3(332)2x-31×2=36(333)6x=2.4(334)(13x-11)÷14=15(335)4(6x+30)=192(336)3x÷16=0.6(337)x÷2=3.2(338)x+64=134(339)11÷x=1(340)14.6+0.5x=26.1(341)6.1x-5.6x+3=9(342)12.1÷x=1.1(343)5x-2x+13=76(344)7x-3×0.7=3.5(345)4+36x=14.8(346)0.2x+0.9x=101.2(347)10.7+10x=21.7(348)x+4.3=11.9(349)3.6x-2.9x+2.2=16.2(350)9.8-1.6x=5(351)3(4x+19)=153(352)74x+20x+4.6=98.6(353)x-5.1=3.5(354)19.5-0.3x=4.5(355)22x-12x-2.7=27.3(356)19.9-2x=15.5(357)8.7x-7x-3.2=3.6(358)x+7.6=12.4(359)11x-6x=35(360)9.2-x=1.6(361)92÷x=4(362)6x-3x+3.7=20.8(363)3.4x+0.2x=97.2(364)6x+20×0.6=19.2(365)2x=3.8(366)144÷x=2(367)8x-3x-39=36(368)(9.5x-2.5)÷32=2(369)197-2x=175(370)x-33=56(371)2x=30(372)0.2x+2.6=7.4(373)4x-2×10=164(374)2x+16x+31=247(375)5.3x+1.6x-3.1=65.9(376)58x+3x-2.6=82.8(377)13.1+11x=23(378)3.9-x=2.3(379)15x-6x-1.4=23.8(380)3x+1=16(381)6.6-x=5.9(382)18.9+2x=30.9(383)48-x=23(384)5x-2.2x=11.2(385)x÷39=4(386)x-2.6=4.6(387)5(3x+2)=40(388)4x÷20=0.4(389)(18x+2)÷5=40(390)(7.9x+2.4)÷18=5.4(391)14x+11x+2.6=92.6(392)(8x-9)÷7=9(393)2+x=70(394)(12x-22)÷49=2(395)0.8x÷46=0.4(396)136÷x=4(397)17.7-3.7x=6.6(398)8.4+1.3x=18.8(399)3x÷15=1.3(400)0.7x+0.9x+3.9=71.1(401)15.9-5x=11.4(402)2x+17×4=124(403)4.8x=19.2(404)19x-3x+41=105(405)0.4x-4.4=9.6(406)48-x=28(407)85+4x=249(408)(9.3x+6.6)÷10=8.1(409)57x÷19=9(410)67x-28x+3.9=23.4(411)5x-45=140(412)9x÷51=3(413)20x÷24=0.5(414)19x-2x=170(415)(3x+42)÷12=7(416)2.5x-2=15.5(417)14x-6x=16(418)3.2x-0.8x-3.2=52(419)x+10=15(420)10x÷40=2(421)3.1x-5.1=1.1(422)1.2x-1x=9(423)21x÷3=28(424)1.2x-0.5×7=8.5(425)47x+11×0.7=26.5(426)x÷2=32(427)20x+3.9=7.9(428)x÷66=2(429)5.4+21x=11.7(430)3(3.7x-0.7)=31.2(431)3.5x-0.9x+4.6=51.4(432)x+58=124(433)2x+65×3=255(434)(4x+8)÷24=3(435)6(10x+3)=198(436)37x-2.4=16.1(437)(2.7x+9.8)÷4=14.6(438)3x+9x+9=105(439)32+2x=102(440)5(0.2x+4.6)=46(441)51-x=49(442)1.8+2x=21.8(443)4.3x-1.3x=15(444)8x+4x=252(445)2.5x+2.1x=23(446)11x-7×14=56(447)2x+1.4x+1.1=113.3(448)13x-7x-7=29(449)7x-4×2.6=7.8(450)5.6x+0.4x+3=45(451)3x+4.5=22.8(452)7.9x-7.1x+0.5=6.9(453)11.9÷x=0.7(454)3x=36(455)x-36=12(456)7x+2×2.1=8.4(457)54x-42x-4.5=7.5(458)2(3.4x+6.1)=46.2(459)7.8÷x=2.6(460)21x+43×3=234(461)19.8-9x=15.3(462)25x+22×0.2=14.4(463)3(3.7x-0.6)=31.5(464)107+9x=170(465)3(1.5x-9.2)=8.4(466)0.4x+6.8x=43.2(467)2(x+27)=88(468)8(0.2x+0.6)=27.2(469)62x+1.3=19.9(470)0.8x+0.5×37=37.7(471)x+5.1=10.9(472)1.3x=18.2(473)3x-7×0.4=11.3(474)90÷x=2(475)8.4x-3.4x-1.8=28.2(476)11x+13x=144(477)17.1÷x=0.3(478)3.3x+5.8=25.6(479)4x÷2=1.8(480)(6.3x-6)÷12=1.6(481)x+4.4=9.7(482)6(4x+12)=120(483)1.7x+3.9x+4.9=77.7(484)(8x-46)÷2=9(485)50-x=30(486)51x-16x+3.3=41.8(487)1.4x+0.7×3=13.3(488)0.3x=7.8(489)(1.9x+8.3)÷12=3.7(490)6(9x-48)=144(491)17x÷2=3.4(492)14x+7x+14=287(493)4x=84(494)162-6x=54(495)32x-49=79(496)2.2x+1.3×11=29.7(497)49x÷7=14(498)25x÷10=1(499)(2.6x+8.2)÷6=7(500)1.4x+5.7x-0.5=13.7(501)5x+14x-31=159(502)11x+9x-3.1=112.9(503)6x-2×46=40(504)0.6x÷42=0.3(505)183-11x=62(506)4.2+x=7.5(507)86x=17.2(508)30x-5=13(509)69+x=149(510)x+34=86(511)155+2x=249(512)0.8x+0.7x+3.5=38(513)9.1x-5.5x=7.2(514)55x-4.2=12.3(515)84x+44x-0.9=37.5(516)x÷5=2.4(517)5(0.5x-2)=7.5(518)(16x+27)÷7=13(519)50÷x=2(520)6(1.9x+1)=40.2(521)11x÷4=22(522)3x-5.5=1.7(523)5(20x-36)=120(524)4x+18×3=90(525)5(7x+11)=195(526)5x-2×3.6=4.8(527)x-3=4.4(528)9.1+x=18.8(529)13.7+21x=28.4(530)19x-2x-18=33(531)99x+3x+0.4=20.8(532)2x+44=232(533)99x-48x-3.1=42.8(534)13.6-60x=1.6(535)2x-1.5×6=11(536)6x-20×0.3=12.6(537)9x+6x-24=36(538)(2.1x-7.2)÷10=1.8(539)161-15x=41(540)5x-2x=99参考答案(1)x=0.4(2)x=7(3)x=17(4)x=6(5)x=17(6)x=11(7)x=32(8)x=7.3(9)x=66(10)x=17(11)x=12(12)x=14(13)x=6.3(14)x=52(15)x=14(16)x=94(17)x=2(18)x=4.5(19)x=7.8(20)x=1(21)x=5(22)x=4(23)x=4(24)x=3(25)x=25(26)x=8.1(27)x=0.7(28)x=13(29)x=7.5(30)x=17(31)x=3(32)x=9(33)x=36(34)x=48(35)x=0.4(36)x=1.4(37)x=11(38)x=53(39)x=4(40)x=3.8(41)x=8(42)x=3(43)x=4(44)x=1.1(45)x=0.2(46)x=2.4(47)x=2.1(48)x=11(49)x=4.1(50)x=2(51)x=5(52)x=75(53)x=3(54)x=11(55)x=43(56)x=26(57)x=0.2(58)x=6(59)x=4(60)x=3(61)x=17(62)x=13(63)x=9(64)x=10(65)x=26(66)x=79(67)x=23(68)x=5.2(69)x=96(70)x=3(71)x=6(72)x=0.2(73)x=2(74)x=0.8(75)x=0.6(76)x=9.9(77)x=69(78)x=11(79)x=2(80)x=1.8(81)x=8(82)x=2(83)x=21(84)x=10(85)x=34(86)x=0.4(87)x=19(88)x=6(89)x=6(90)x=4(91)x=7(92)x=7(93)x=7(94)x=9(95)x=9(96)x=16(97)x=7(98)x=0.2(99)x=10(100)x=3(101)x=2(102)x=0.2(103)x=1.7(104)x=7(105)x=23(106)x=21(107)x=2(108)x=0.2(109)x=11(110)x=4(111)x=43(112)x=20(113)x=0.6(114)x=13(115)x=15(116)x=6.6(117)x=14(118)x=60(119)x=0.4(120)x=5(121)x=2(122)x=26(123)x=18(124)x=26(125)x=14(126)x=4(127)x=4(128)x=2(129)x=18(130)x=6(131)x=34(132)x=9.1(133)x=8(134)x=11(135)x=44(136)x=22(137)x=18.2(138)x=43(139)x=16.1(140)x=6(141)x=2.6(142)x=4(143)x=4(144)x=6(145)x=21(146)x=4(147)x=10(148)x=9(149)x=5(150)x=2.7(151)x=11(152)x=6(153)x=2(154)x=25(155)x=9(156)x=0.3(157)x=37(158)x=2(159)x=10(160)x=14(161)x=1.4(162)x=36(163)x=1.7(164)x=18(165)x=20(166)x=2.7(167)x=1.2(168)x=10(169)x=1(170)x=10(171)x=74(172)x=2.3(173)x=8(174)x=11(175)x=7(176)x=71(177)x=28(178)x=40(179)x=5(180)x=26(181)x=5(182)x=57(183)x=1.5(184)x=21(185)x=31(186)x=7(187)x=7(188)x=15(189)x=12(190)x=3(191)x=20(192)x=5(193)x=3(194)x=6(195)x=27(196)x=9(197)x=2(198)x=7(199)x=80(200)x=5(201)x=12.6(202)x=40(203)x=40(204)x=64(205)x=20(206)x=7.5(207)x=140(208)x=0.8(209)x=15(210)x=39(211)x=4.9(212)x=16(213)x=6(214)x=6(215)x=3(216)x=2.5(217)x=30(218)x=5(219)x=39(220)x=10(221)x=5(222)x=4.2(223)x=7.8(224)x=11(225)x=0.9(226)x=15(227)x=26(228)x=1.4(229)x=0.4(230)x=5(231)x=9(232)x=90(233)x=2(234)x=2.6(235)x=0.7(236)x=2(237)x=25(238)x=0.9(239)x=16(240)x=4.1(241)x=10(242)x=10(243)x=3(244)x=15(245)x=7(246)x=0.8(247)x=6(248)x=12(249)x=8(250)x=8.6(251)x=3(252)x=4(253)x=3(254)x=6.1(255)x=6(256)x=4.7(257)x=34(258)x=1.5(259)x=27(260)x=1.2(261)x=2.3(262)x=22(263)x=6.2(264)x=0.4(265)x=3(266)x=1.6(267)x=5(268)x=2(269)x=4(270)x=5.9(271)x=60(272)x=72(273)x=5(274)x=3(275)x=3(276)x=9(277)x=3(278)x=0.2(279)x=9(280)x=32(281)x=39(282)x=5(283)x=17(284)x=14(285)x=42(286)x=32(287)x=3.6(288)x=67(289)x=21(290)x=18(291)x=0.8(292)x=5(293)x=1.1(294)x=16(295)x=48(296)x=4(297)x=2(298)x=13(299)x=11(300)x=63(301)x=17(302)x=0.4(303)x=14(304)x=4(305)x=5(306)x=0.3(307)x=0.5(308)x=2(309)x=1.1(310)x=12(311)x=6.3(312)x=19(313)x=6(314)x=49(315)x=2.8(316)x=6(317)x=4.1(318)x=3(319)x=85(320)x=2(321)x=0.5(322)x=3.5(323)x=3.5(324)x=33(325)x=5(326)x=9(327)x=12(328)x=192(329)x=14(330)x=8.1(331)x=8.7(332)x=49(333)x=0.4(334)x=17(335)x=3(336)x=3.2(337)x=6.4(338)x=70(339)x=11(340)x=23(341)x=12(342)x=11(343)x=21(344)x=0.8(345)x=0.3(346)x=92(347)x=1.1(348)x=7.6(349)x=20(350)x=3(351)x=8(352)x=1(353)x=8.6(354)x=50(355)x=3(356)x=2.2(357)x=4(358)x=4.8(359)x=7(360)x=7.6(361)x=23(362)x=5.7(363)x=27(364)x=1.2(365)x=1.9(366)x=72(367)x=15(368)x=7(369)x=11(370)x=89(371)x=15(372)x=24(373)x=46(374)x=12(375)x=10(376)x=1.4(377)x=0.9(378)x=1.6(379)x=2.8(380)x=5(381)x=0.7(382)x=6(383)x=25(384)x=4(385)x=156(386)x=7.2(387)x=2(388)x=2(389)x=11(390)x=12(391)x=3.6(392)x=9(393)x=68(3