五年级数学(方程)专项练习题及答案汇编

五年级数学(方程)专项练习题及答案汇编(1)129+3x=252(2)90x-77x+4.6=11.1(3)7x÷4=4.9(4)12x÷84=0.2(5)11x+6x=34(6)5.2+x=9.1(7)8x=6.4(8)(1.3x-7.3)÷24=0.4(9)5.1x-0.7x+2.8=68.8(10)29x-5.5=6.1(11)37x-18x+2.9=35.2(12)4.7-x=3(13)59+x=114(14)4.1-x=3.2(15)1.9x+0.8x-4.4=125.2(16)8.7+6.1x=27(17)4.3x-0.9x-1.1=43.1(18)0.6x-1=8.6(19)2x-13×0.4=1.8(20)2.8x-1.4x-3.3=19.1(21)2(11x+24)=114(22)17(0.8x-6.7)=35.7(23)2(3.1x+7.4)=27.2(24)93x-25x+2.9=30.1(25)9x+18x-25=29(26)14.7-4x=11.5(27)24x=9.6(28)7.7x-3.8x-0.6=11.1(29)x÷47=2(30)3.5x+1=18.5(31)0.2x=6.8(32)172÷x=43(33)x÷32=6(34)0.5x+3.1=15.1(35)53x+18=177(36)3x+2x+2.4=127.4(37)(3.9x-6.5)÷16=1.3(38)3.8x+9.1x-0.6=76.8(39)3.3x-0.5x+4.1=82.5(40)6.2x+4.9x=111(41)19x-17x+42=52(42)8+0.2x=18.8(43)2x-19×2=106(44)(9x-17)÷43=4(45)(4.4x-6.4)÷28=2.6(46)7.8x-5=10.6(47)2.8÷x=0.4(48)(5.3x-1.7)÷12=5.6(49)x+1.9=4(50)16x-21×0.4=1.2(51)3.9x-2.2x+4.6=19.9(52)6x-12×0.6=6(53)5.9+8.5x=22.9(54)6x+7x-20=162(55)0.5x-0.4×23=10.8(56)1.7x-4.9=13.8(57)11x-1=2.3(58)6.1+21x=20.8(59)41x+30×0.6=30.3(60)2.4x÷9=0.8(61)1.4+x=6.3(62)0.2x+2.8=15(63)16.7-52x=1.1(64)x+6=10.5(65)7x+6x=351(66)x+99=129(67)6x-8×3=144(68)8.5+x=13.9(69)45x+11x+4.8=128(70)110+2x=200(71)6x+52=142(72)18x-3x-7=98(73)9x+28×0.5=23(74)91+x=160(75)192-20x=32(76)3.2x+5x=131.2(77)2(7x+45)=146(78)2(26x-4)=96(79)x+97=192(80)5(28x-19)=185(81)19.2÷x=0.6(82)6.7x-2.2x=58.5(83)x-6.6=1.4(84)0.2x+0.4×47=22.4(85)6x-4x-6=58(86)3.7x+0.5x-3.9=105.3(87)3(2x+6)=126(88)x÷39=3(89)7x+4×34=157(90)17.1-2x=9.3(91)8x=24(92)3.5÷x=0.5(93)3(0.5x+3.8)=35.4(94)15-0.3x=13.2(95)175÷x=25(96)84x+86x-1.1=66.9(97)3.3x-0.9×7=13.5(98)8x-6x=42(99)13x+6×18=225(100)20x+20×0.5=24(101)91x+1.7=19.9(102)x-1=7.1(103)14x+19x+26=323(104)14(2x-8)=196(105)40x-24x+3.1=20.7(106)2(1.8x+1.1)=27.4(107)x-58=26(108)x+0.4=6.7(109)14(0.4x-4.9)=49(110)21x-10x-2.5=47(111)5x-9×0.8=9.3(112)10x+13x+34=149(113)0.3x-0.4×3=12.3(114)x+6=54(115)146+2x=176(116)5x+50=70(117)x+16=113(118)2.5x=20(119)184÷x=8(120)13x+16x-29=261(121)4(0.2x+8.5)=44.4(122)6x÷22=0.3(123)0.9x+3.5=10.7(124)8x-5x+44=77(125)x÷3=22(126)5.9-x=1.3(127)2x-33=23(128)2.4x+4.1x+4.2=114.7(129)2x+10×0.2=3.2(130)10x-4×3.8=2.8(131)17x=119(132)2x+5.3=17.3(133)19.8-2.4x=12.6(134)19x+16x+13=153(135)2x÷12=4(136)16.2÷x=1.8(137)0.4x=11.2(138)(4x+42)÷2=25(139)45x-41x-2.4=4.4(140)2x-3.3=5.7(141)15x-4x+2.4=39.8(142)x-9=66(143)9x=16.2(144)x÷15=0.9(145)1.4x-0.2x+2.5=82.9(146)0.8x+2.8×2=12.8(147)9x-4x=25(148)5(2x-28)=200(149)7.6x-5.4x+1.9=21.7(150)x+63=152(151)4.5x+2.6x-2.7=103.8(152)x-2.8=4.8(153)0.2x+2.7=10.3(154)x+2.9=11.2(155)6(1.9x+1.9)=34.2(156)6.1x-2x=49.2(157)7x÷14=14(158)3.2x+1.3x+1.5=114(159)25x-8x-2.1=21.7(160)x÷18=8(161)21x-8x+3.9=9.1(162)(5x+16)÷6=16(163)7x-4x=84(164)11.4÷x=0.6(165)14x-8×12=30(166)8.2x-3x-4=27.2(167)9(4x-2)=90(168)(8.3x-0.6)÷8=2(169)2.8÷x=0.2(170)x-5.7=3.6(171)7x+8×9=226(172)7x-36=13(173)13x+12x+16=141(174)3(2x+39)=183(175)2x÷6=0.5(176)0.8x+0.4×13=24.4(177)4x÷12=10(178)6x-38=10(179)15x-10x=25(180)2.6x+4x+1.6=113.8(181)7x-4x+30=81(182)6.8x-4.3x-1.5=23.5(183)x+4.6=14(184)19.4+6.8x=33(185)8.3x-1x+0.9=59.3(186)25x+4×2.8=21.2(187)95-x=17(188)18÷x=1.8(189)15x-8x-42=28(190)2(8x+5.9)=43.8(191)2x=114(192)4.8x-2.1×2=15(193)7x÷42=4(194)4x+48×3=292(195)9(x-22)=135(196)14(17x-22)=168(197)(4.5x+6.8)÷13=2.6(198)62+14x=160(199)11x+14x+13=138(200)(11x-14)÷46=4(201)26x+24x+2.7=57.7(202)16x+17x+16=181(203)19+27x=100(204)3.6x+3.8x+1.4=119.8(205)13x+12x-17=258(206)17x+12x=116(207)4.4÷x=2.2(208)0.7x+6.7x+3.3=32.9(209)88-6x=34(210)6.9+1.3x=9.5(211)13x=143(212)(9.1x+8.4)÷10=6.3(213)2x=42(214)4x-2.1=17.9(215)x÷15=11(216)16.7-38x=9.1(217)14x+10x=120(218)18.2-2x=16.2(219)0.3x+1.8×4=8.7(220)x÷3=4.8(221)46x+53x-2.2=156.2(222)0.5x-0.2×23=14.9(223)46+x=101(224)38+x=81(225)4.3x-1.8x=42.5(226)79-2x=65(227)16.8+63x=35.7(228)16x+2×37=202(229)89x=17.8(230)x÷52=0.3(231)(15x-42)÷2=24(232)2.8x-1.1=15.7(233)42x-20x-1.6=31.4(234)9.8x+9.4x=134.4(235)(14x-35)÷3=7(236)74-2x=62(237)5.8x+4.5x=164.8(238)1.7x-0.3x-2.3=60.7(239)10x-5x+35=75(240)6x+13x=285(241)51+x=61(242)84-x=11(243)x÷2=4(244)9.6+x=16.3(245)3.3x+4.9x=123(246)17.3+7x=24.3(247)2.6x=10.4(248)5(0.8x-8.4)=34(249)5x÷35=0.2(250)(9x-5)÷31=1(251)15x-88×2=19(252)9x÷18=5(253)55-x=12(254)85x-40x-4.6=35.9(255)16+17x=101(256)6x+13x=57(257)x-45=21(258)145÷x=5(259)180÷x=9(260)x-60=37(261)13x-4x+39=138(262)14x-10x+28=52(263)11(0.6x+1.8)=39.6(264)9x-7x-1.2=2.8(265)x+8.3=13.1(266)5.7x+3.5=14.9(267)0.3x+0.5×27=14.1(268)8.3-x=3.3(269)(8.4x+4.8)÷18=4(270)2(1.8x-5.4)=28.8(271)12.4+41x=20.6(272)19x+17×2=91(273)17.5-18x=1.3(274)2.8x+4.5×4=26.4(275)84+x=164(276)5.3x-0.6x=37.6(277)17.1+9x=32.4(278)4(2x+17)=148(279)3x-2×2.7=8.4(280)41x+26x-3.8=123.5(281)11x-6x+23=43(282)6x=9(283)0.9x+5.4x=81.9(284)19x-14x=20(285)34x+2.4=16(286)199-5x=124(287)82x+41x-1.2=60.3(288)0.3x-0.3×10=3(289)0.4x-2.5=3.9(290)(8.7x+9)÷35=1.5(291)2(3x-7.1)=27.8(292)9.4+x=9.6(293)7x-3x-40=16(294)7.8-0.4x=3.8(295)11(x+9)=187(296)(19x+9)÷13=8(297)6x+5×0.7=14.9(298)15x+43x+2.2=19.6(299)3.4x=10.2(300)x÷24=0.7(301)2(2x+42)=100(302)10x=2(303)(4.4x+2.4)÷4=18.2(304)24x÷6=3.2(305)25(0.5x-2.9)=40(306)10x-4x=72(307)x÷6=5(308)6.7-x=5(309)6x-4x-29=13(310)7(x-19)=77(311)0.8x+4×5=24(312)98x-19=177(313)71+5x=146(314)(6x-30)÷5=12(315)27x÷9=0.9(316)x+44=72(317)3x+4x+26=306(318)(7x+33)÷3=32(319)121÷x=11(320)(0.3x+8.9)÷2=6.7(321)0.7x-3.5=3.5(322)4x-0.3×12=12.4(323)10x-1.2=15.8(324)3x+1.4=9.2(325)4x-33=95(326)11x+14x-6=144(327)16x=32(328)87-x=68(329)180÷x=2(330)2(7x-27)=72(331)23x-15x-1.7=11.9(332)38x+68x-1.6=83.2(333)7x+47=103(334)13.6÷x=0.8(335)x-7.2=2.1(336)3x+28=127(337)10x-18×2=164(338)4x+16×7=252(339)161-14x=35(340)4(2x+24)=200(341)5x+3.2=18.2(342)8(2.7x-5.7)=19.2(343)1.4x+2.6=12.4(344)1.4x+1.8×2=20.4(345)5x-8×3=66(346)26(5.4x-9.6)=31.2(347)x+15=60(348)30x-3×2.8=3.6(349)57-x=34(350)84÷x=6(351)86x-6x+3.2=59.2(352)15x+7x-46=174(353)37x+5x-3.5=67.9(354)1.5x÷30=0.5(355)0.4x+0.5x+1.4=72.5(356)14x-2.4=11.6(357)14x+5.7=19.7(358)6.1-x=4(359)26x-50=80(360)3.4x+3.7x-4.5=102(361)63x+55x+4.8=122.8(362)63-x=28(363)14+10x=18(364)60x=18(365)16x+9x=100(366)93x+64x+4.9=99.1(367)8x+50=154(368)x-31=16(369)5.4x+2.1x-1.1=73.9(370)14x÷5=28(371)x-2.4=7.4(372)7.3x+6.6x+1.1=167.9(373)2x=17.8(374)(8x-48)÷8=20(375)1.3+x=4.2(376)9.6-x=5.8(377)2.6+x=8.7(378)1.3x-0.7x=27(379)4(x+13)=164(380)2.5x+4.6x=14.2(381)2.8x+3.8×2=16(382)2.5x+3.4x+4=74.8(383)(5x-34)÷14=4(384)7.3x-4.8x-0.8=4.2(385)11.4-0.8x=7.4(386)18x-3x-2=88(387)x-16=20(388)x-4=68(389)1x÷5=1.8(390)20x÷70=0.2(391)8x-5x=18(392)13.3-40x=5.3(393)0.8x=3.2(394)81x-70x-2.5=3(395)8.2+x=16.5(396)94x-12x+1.2=50.4(397)1.8x÷27=0.6(398)(5.2x-0.2)÷22=3.3(399)0.3x÷2=0.9(400)91x=182(401)20x+23x-2.7=44.6(402)6x÷16=12(403)2.7x-1.3x=19.6(404)2(0.6x-5.2)=24.4(405)10x+13x+1=134.4(406)5x+39=179(407)0.4x-2.6×3=10.2(408)(3.1x+4)÷2=20.6(409)156-5x=31(410)x÷21=0.3(411)14x+1.3=8.3(412)(1.8x-2.8)÷2=3.1(413)15x-3x-2=118(414)14x÷21=4(415)13x+10×9=116(416)5.7x+4.8x=178.5(417)32x+13×1.1=23.9(418)9x-3x+8=68(419)x-38=44(420)63+x=122(421)14x-7x=91(422)0.4x÷14=0.6(423)0.4x÷32=0.3(424)18.8-1.2x=15.2(425)149+5x=219(426)(17x+12)÷16=5(427)(x+2)÷30=0.2(428)2x÷9=16(429)19.7-19x=14(430)8.8x-4.7=12.9(431)11x+4x-44=226(432)4.8x-4.2=10.2(433)x÷8=0.7(434)(9x+30)÷2=132(435)9.5+x=9.7(436)x-2.2=1.9(437)10x-40=80(438)40x-4×3.2=7.2(439)69-x=33(440)48x+79x+4.7=30.1(441)x÷4=33(442)37+x=87(443)8.1x-2.6x-4.3=45.2(444)x+9.7=12.3(445)72x-47x-1.1=23.9(446)4x+6x+10=160(447)5.1x+2.7x-3.3=98.1(448)2.6x-1.9x=10.5(449)23x+31=169(450)30x=150(451)17x-6x-28=27(452)7.8+2.7x=18.6(453)94-x=75(454)2x+3.9=15.1(455)14x-5.1=7.5(456)x÷6=18(457)2.4x=12(458)176+2x=200(459)x-2.8=4.2(460)6.5-x=2.1(461)1.5+8.2x=17.9(462)18.8-0.3x=16.4(463)6x=126(464)64x+69x+3.7=43.6(465)9.3x-8.3x+3.4=12.4(466)12x-9×3=129(467)13x-2x+45=144(468)(7.7x-0.4)÷17=3.6(469)79x-77x+4.1=5.9(470)(4.9x+1)÷29=2.4(471)8x-2.3x+3.3=43.2(472)115-41x=33(473)x-4.7=2.2(474)9x-3x-23=97(475)4x+3x+12=348(476)16.5-0.3x=7.8(477)3.8x=7.6(478)18-0.8x=14(479)2x+17x-13=139(480)14x-11x=15(481)67x+4.3=17.7(482)5.1x+4.1x-4=115.6(483)x÷20=0.9(484)5.2x-2.5x=27(485)(6x+26)÷19=8(486)2x=2.4(487)18.2-6.1x=6(488)33x-2.2=14.3(489)0.2x+3.2=14(490)8.5+10x=26.5(491)(4x+4)÷8=14(492)0.6x-2.2×4=4.4(493)7x+11x+4.1=139.1(494)2.4x+5.4x-1.2=123.6(495)2.7x+9.5x=85.4(496)13x+4x=153(497)4x+57=157(498)1.2x-0.7x=23(499)9.3-x=1.3(500)(12x-22)÷2=13(501)77x-3.8=11.6(502)3(0.8x+8.2)=41.4(503)12+x=22(504)6x+15×12=210(505)4.7+7x=11.7(506)2x-50=96(507)(7.7x-3.5)÷7=5(508)2x-8×14=78(509)(12x+3)÷3=9(510)4x÷24=0.7(511)x+30=103(512)x+17=89(513)0.8x=9.6(514)x-44=41(515)16x+10x-0.4=54.2(516)8x+10x=306(517)1.4x÷18=0.7(518)32x-4×2=11.2(519)72-x=30(520)14.9+3x=22.4(521)9.6+0.6x=13.8(522)7x+4×1=20.1(523)11x+5x-33=175(524)102÷x=3(525)11x+9x-3.7=28.3(526)4x-16×10=28(527)174-41x=10(528)2x+2.6=16.4(529)x÷43=0.3(530)7x-2x-3.5=8(531)40x-20=100(532)5.4x÷81=0.2(533)10.9+4.4x=24.1(534)x+5.2=12.7(535)8x+3×0.4=14.8(536)x+1.1=7.7(537)9.5-4x=7.9(538)11(0.8x+1.1)=29.7(539)2.6x-1x+4=32.8(540)2x-1.6=12.2参考答案(1)x=41(2)x=0.5(3)x=2.8(4)x=1.4(5)x=2(6)x=3.9(7)x=0.8(8)x=13(9)x=15(10)x=0.4(11)x=1.7(12)x=1.7(13)x=55(14)x=0.9(15)x=48(16)x=3(17)x=13(18)x=16(19)x=3.5(20)x=16(21)x=3(22)x=11(23)x=2(24)x=0.4(25)x=2(26)x=0.8(27)x=0.4(28)x=3(29)x=94(30)x=5(31)x=34(32)x=4(33)x=192(34)x=24(35)x=3(36)x=25(37)x=7(38)x=6(39)x=28(40)x=10(41)x=5(42)x=54(43)x=72(44)x=21(45)x=18(46)x=2(47)x=7(48)x=13(49)x=2.1(50)x=0.6(51)x=9(52)x=2.2(53)x=2(54)x=14(55)x=40(56)x=11(57)x=0.3(58)x=0.7(59)x=0.3(60)x=3(61)x=4.9(62)x=61(63)x=0.3(64)x=4.5(65)x=27(66)x=30(67)x=28(68)x=5.4(69)x=2.2(70)x=45(71)x=15(72)x=7(73)x=1(74)x=69(75)x=8(76)x=16(77)x=4(78)x=2(79)x=95(80)x=2(81)x=32(82)x=13(83)x=8(84)x=18(85)x=32(86)x=26(87)x=18(88)x=117(89)x=3(90)x=3.9(91)x=3(92)x=7(93)x=16(94)x=6(95)x=7(96)x=0.4(97)x=6(98)x=21(99)x=9(100)x=0.7(101)x=0.2(102)x=8.1(103)x=9(104)x=11(105)x=1.1(106)x=7(107)x=84(108)x=6.3(109)x=21(110)x=4.5(111)x=3.3(112)x=5(113)x=45(114)x=48(115)x=15(116)x=4(117)x=97(118)x=8(119)x=23(120)x=10(121)x=13(122)x=1.1(123)x=8(124)x=11(125)x=66(126)x=4.6(127)x=28(128)x=17(129)x=0.6(130)x=1.8(131)x=7(132)x=6(133)x=3(134)x=4(135)x=24(136)x=9(137)x=28(138)x=2(139)x=1.7(140)x=4.5(141)x=3.4(142)x=75(143)x=1.8(144)x=13.5(145)x=67(146)x=9(147)x=5(148)x=34(149)x=9(150)x=89(151)x=15(152)x=7.6(153)x=38(154)x=8.3(155)x=2(156)x=12(157)x=28(158)x=25(159)x=1.4(160)x=144(161)x=0.4(162)x=16(163)x=28(164)x=19(165)x=9(166)x=6(167)x=3(168)x=2(169)x=14(170)x=9.3(171)x=22(172)x=7(173)x=5(174)x=11(175)x=1.5(176)x=24(177)x=30(178)x=8(179)x=5(180)x=17(181)x=17(182)x=10(183)x=9.4(184)x=2(185)x=8(186)x=0.4(187)x=78(188)x=10(189)x=10(190)x=2(191)x=57(192)x=4(193)x=24(194)x=37(195)x=37(196)x=2(197)x=6(198)x=7(199)x=5(200)x=18(201)x=1.1(202)x=5(203)x=3(204)x=16(205)x=11(206)x=4(207)x=2(208)x=4(209)x=9(210)x=2(211)x=11(212)x=6(213)x=21(214)x=5(215)x=165(216)x=0.2(217)x=5(218)x=1(219)x=5(220)x=14.4(221)x=1.6(222)x=39(223)x=55(224)x=43(225)x=17(226)x=7(227)x=0.3(228)x=8(229)x=0.2(230)x=15.6(231)x=6(232)x=6(233)x=1.5(234)x=7(235)x=4(236)x=6(237)x=16(238)x=45(239)x=8(240)x=15(241)x=10(242)x=73(243)x=8(244)x=6.7(245)x=15(246)x=1(247)x=4(248)x=19(249)x=1.4(250)x=4(251)x=13(252)x=10(253)x=43(254)x=0.9(255)x=5(256)x=3(257)x=66(258)x=29(259)x=20(260)x=97(261)x=11(262)x=6(263)x=3(264)x=2(265)x=4.8(266)x=2(267)x=2(268)x=5(269)x=8(270)x=11(271)x=0.2(272)x=3(273)x=0.9(274)x=3(275)x=80(276)x=8(277)x=1.7(278)x=10(279)x=4.6(280)x=1.9(281)x=4(282)x=1.5(283)x=13(284)x=4(285)x=0.4(286)x=15(287)x=0.5(288)x=20(289)x=16(290)x=5(291)x=7(292)x=0.2(293)x=14(294)x=10(295)x=8(296)x=5(297)x=1.9(298)x=0.3(299)x=3(300)x=16.8(301)x=4(302)x=0.2(303)x=16(304)x=0.8(305)x=9(306)x=12(307)x=30(308)x=1.7(309)x=21(310)x=30(311)x=5(312)x=2(313)x=15(314)x=15(315)x=0.3(316)x=28(317)x=40(318)x=9(319)x=11(320)x=15(321)x=10(322)x=4(323)x=1.7(324)x=2.6(325)x=32(326)x=6(327)x=2(328)x=19(329)x=90(330)x=9(331)x=1.7(332)x=0.8(333)x=8(334)x=17(335)x=9.3(336)x=33(337)x=20(338)x=35(339)x=9(340)x=13(341)x=3(342)x=3(343)x=7(344)x=12(345)x=18(346)x=2(347)x=45(348)x=0.4(349)x=23(350)x=14(351)x=0.7(352)x=10(353)x=1.7(354)x=10(355)x=79(356)x=1(357)x=1(358)x=2.1(359)x=5(360)x=15(361)x=1(362)x=35(363)x=0.4(364)x=0.3(365)x=4(366)x=0.6(367)x=13(368)x=47(369)x=10(370)x=10(371)x=9.8(372)x=12(373)x=8.9(374)x=26(375)x=2.9(376)x=3.8(377)x=6.1(378)x=45(379)x=28(380)x=2(381)x=3(382)x=12(383)x=18(384)x=2(385)x=5(386)x=6(387)x=36(388)x=72(389)x=9(390)x=0.7(391)x=6(392)x=0.2(393)x=4(394)x