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)(16x-44)÷30=6(2)x÷2=2.7(3)x+0.6=4.6(4)4.7+0.5x=6.2(5)24x-59=85(6)x-4.8=2.7(7)x-37=53(8)191-24x=143(9)14x-9x+9=49(10)9x=17.1(11)x-20=12(12)1.2x-0.9x=24.6(13)x+26=38(14)13.3-0.2x=11.1(15)7.9x-1.5=14.3(16)4x+4.7=12.7(17)x-25=56(18)4(3.3x-0.5)=24.4(19)17x-5.5=13.2(20)8.8-0.2x=3.8(21)10x+25=85(22)6x+1.2=21(23)2.5x+2.6=17.6(24)14x-7x+9=23(25)20x=60(26)17x-14x+17=41(27)3x-24=27(28)5(6x-9)=75(29)56x+6x+0.4=62.4(30)(2.4x-0.4)÷38=1(31)12x-5x=28(32)19.8÷x=3.3(33)19.9-1.8x=3.7(34)39x+14x+4.9=89.7(35)2(5.2x+9.3)=49.8(36)3.2x-1.3x+1.6=30.1(37)(8x+44)÷6=34(38)(3.3x+5.1)÷21=1.5(39)92+x=97(40)13x-3x-39=101(41)3.4÷x=1.7(42)76+x=89(43)(8x-42)÷23=2(44)11(0.2x+0.2)=35.2(45)3.7x+2.8x+3.8=62.3(46)8x+5×3.6=35.6(47)0.6x-2.2×5=3.4(48)41x-32x-4.4=12.7(49)36x÷3=24(50)4x÷2=24(51)x+72=147(52)7x+61x+3.1=37.1(53)2.5x-1.7=13.3(54)3x+17x+26=226(55)24x-16=128(56)(10x+4)÷14=21(57)10x-5x=30(58)18x+49×0.3=21.9(59)0.2x+3.2=15.8(60)1.7+2x=14.1(61)60x÷3=40(62)10x-4x+45=123(63)4x+12x=48(64)9.5-x=4.6(65)8.4x+1x=75.2(66)3x+30=192(67)7x-3.5x-2.7=46.3(68)2.5x+0.3×34=15.2(69)x÷6=3.3(70)9.6x+2.6=21.8(71)43-x=34(72)(3x+4)÷5=14(73)9x+2×0.9=12.6(74)59x=17.7(75)4x+5x=90(76)7(0.2x+5.8)=47.6(77)2x+38×4=234(78)58x+1.6=19(79)9x÷48=0.3(80)x-3.1=5.3(81)2.1x÷42=0.2(82)29x-6×3=127(83)5(8x+15)=155(84)5x=9.5(85)(4x+7)÷27=1(86)8.2x-2.9x-3.1=28.7(87)9.3-x=3.7(88)32x+18x+4.7=74.7(89)81x+84x+4.7=169.7(90)19x=152(91)4(x+21)=180(92)16.7-2x=10.7(93)1+x=3.7(94)18x+6x=192(95)2.8x+7.6x+0.7=83.9(96)61x+52x+4.6=95(97)5.8x+1.8x=76(98)83x+47=213(99)10.1+7x=15(100)12÷x=2(101)8x+4.4x+3=52.6(102)5.4x+6x=68.4(103)(3.8x-8.8)÷37=1.2(104)120÷x=15(105)23x÷46=0.2(106)1.6x+2.8×3=13.2(107)53x-25=134(108)6(7x-17)=66(109)3x+4x-37=12(110)x÷5=6(111)0.4+x=7.6(112)6.2-x=1.9(113)44-6x=14(114)16x-5x=110(115)99x-59x-2.3=21.7(116)2(4x+5)=114(117)(7x-23)÷5=8(118)8x=15.2(119)4(4x-42)=72(120)0.6x+3.3x+0.5=8.3(121)14x+4.1=9.7(122)4(0.5x-6.2)=45.2(123)117+5x=307(124)12.5-10x=7.5(125)6x-4x-18=22(126)14.6-26x=1.6(127)18.5+0.9x=30.2(128)9x-3.4=6.5(129)2x+32=166(130)2x+3.8x+3=107.4(131)16.4÷x=0.4(132)54x-13x-1.7=68(133)12(0.8x+2.4)=48(134)x-4.2=2.1(135)19.5-0.9x=3.3(136)10x-3.7=2.3(137)94x-57x+2.4=35.7(138)(9x+27)÷2=72(139)1.6x+0.3×20=18.8(140)x-21=30(141)16+97x=210(142)3x=16.8(143)(5.3x-4.6)÷30=0.2(144)(16x+40)÷4=54(145)8x-2x=18(146)(2.4x-2.8)÷5=0.4(147)9.6-0.5x=4.1(148)0.5x-4.6=15.4(149)2.4x÷6=3.2(150)x-44=26(151)x+39=77(152)x-1.9=4.9(153)9.9x-1x+4.7=31.4(154)(7x-46)÷33=2(155)2x+3.1x-1=126.5(156)5x+6x+37=356(157)2x+14x+35=131(158)2x+15×12=236(159)6x-2x=56(160)10x+3x=117(161)12.2+20x=30.2(162)3x+3.5=15.5(163)19x+6×2.9=23.1(164)4x-3×34=38(165)(9x+18)÷3=72(166)18x-10x-48=16(167)0.4x+2x-0.8=35.2(168)15.7-21x=5.2(169)96x-70x-2.6=7.8(170)2x÷4=29(171)0.5x-0.5×4=7.5(172)1.9x÷57=0.3(173)7x+8x=135(174)4x=13.6(175)18x-35×0.2=12.8(176)45x-3.1=10.4(177)5x=20(178)3x-1.6x+2.2=38.6(179)2+0.6x=20.6(180)(6.8x+7)÷26=2.1(181)18x+4.8=12(182)17x-6x-14=63(183)1x=11(184)7.7x-2.8=12.6(185)x÷24=0.5(186)2.8x+8.5x-2.1=54.4(187)x÷37=0.4(188)88-x=36(189)0.4x-0.4×6=8.8(190)3.1x+2.1x-1.9=8.5(191)x÷4=4.3(192)0.4x+1.1×4=21.6(193)9.3+86x=26.5(194)3(1.4x-8.2)=38.4(195)95-x=10(196)3x+4.8=17.7(197)7.2x-2.2x-3=7(198)0.4x-1×6=10.8(199)12x-7x-3.7=13.8(200)3.4+x=6.4(201)6x+5x-4.1=116.9(202)14x+5x+29=162(203)x+0.3=8.9(204)x÷33=0.2(205)14x-5×12=122(206)18.9-10x=6.9(207)14(21x-30)=168(208)60x+53x-0.8=21.8(209)1.3x+2.7=10.5(210)38x-32x+0.6=4.2(211)38-x=19(212)138÷x=6(213)11(0.3x+0.5)=15.4(214)1.8+x=9.5(215)x+73=113(216)17x-5x-14=34(217)33x+31×0.3=19.2(218)1.8x=5.4(219)(6x-6.8)÷8=5.9(220)20(0.5x-2.5)=40(221)23x-52=63(222)0.8x-0.5x-2.4=17.7(223)4x÷7=0.8(224)17.2-5x=13.7(225)(10x+46)÷8=37(226)4x+15x-39=94(227)2x÷4=1(228)x÷46=4(229)82x-37x+1.3=32.8(230)(10x-40)÷48=5(231)x+8.5=17.6(232)3.7x-2.9x+4.6=15.8(233)57x+34x-3=78.9(234)(7.5x-4.2)÷18=3.1(235)8.3+0.6x=20.3(236)18x+5x=230(237)0.7x+1.1x-3.3=122.7(238)(x+41)÷3=21(239)x-1.7=6.2(240)194÷x=2(241)5(9x-26)=95(242)112-6x=16(243)x+27=115(244)23x-10×15=34(245)20x÷4=1.5(246)4x=5.6(247)5+x=89(248)30x=60(249)17x-3x+3.7=21.9(250)81+x=117(251)8x+6x=154(252)17.4-0.8x=10.2(253)10.6÷x=0.2(254)2(1.2x+4.2)=15.6(255)2x+2×0.9=7.2(256)x-37=27(257)7x+4x+3=256(258)3x+6×7=132(259)8x+1.3=8.5(260)13.2+5x=22.2(261)91-x=52(262)8.7+x=10.7(263)108÷x=3(264)x+5.4=14.5(265)18-x=10(266)4.5x+0.9x+2.4=121.2(267)6(2x-37)=102(268)4.8x-4.4×2=5.6(269)49x-36=111(270)1.6x+3x=23(271)74-x=41(272)7.9x-2.1x=17.4(273)15x-31×0.2=13.3(274)24x+60x-1.1=91.3(275)(2.5x+7.1)÷2=17.3(276)27x+6×2.9=25.5(277)17x-14x-19=11(278)7.8x-4x+4.2=27(279)93x÷6=3.1(280)53x+20x-3.1=55.3(281)1.4x-1×5=11.8(282)9x-7x=36(283)3(x+4)=138(284)15x-4x=66(285)4x+46=162(286)x÷8=22(287)44x-11x+0.2=46.4(288)x÷6=22(289)24x-57×2=30(290)1.3x=6.5(291)(3.2x+4.6)÷7=3.4(292)(4x-25)÷19=1(293)9.5x+7.1x+3.5=152.9(294)x+5=16(295)x÷65=0.3(296)41x=123(297)1.1x+3.1=22.9(298)5.9x+6.8x+0.5=178.3(299)8.9x-2.7x=37.2(300)0.2x=7.6(301)13.2÷x=3.3(302)16.6-0.4x=2.2(303)x+3=3.5(304)0.6x=16.2(305)4x+83x-2=76.3(306)84+x=87(307)75-x=26(308)0.4x÷2=1.8(309)1.5x-3.1×2=5.8(310)14.3+0.7x=24.1(311)12x÷4=4.8(312)11x-2×1.6=6.7(313)5.3x-4.4x-1.2=13.2(314)3(8x+38)=162(315)178+7x=325(316)3(0.6x-9)=19.8(317)26x+3×25=179(318)16x÷4=0.8(319)3.5x-2.1x=12.6(320)6(4x-36)=168(321)27x-3.8=15.1(322)2.7+x=8.2(323)6.6+15x=20.1(324)1.6x+8.1x+0.2=58.4(325)x+2.5=5.9(326)7.3x-5.1x-1.2=27.4(327)7(0.4x-8.5)=38.5(328)19x-14x+0.8=20.3(329)0.5x-0.2x-3.7=6.5(330)12÷x=4(331)18x-12x+19=37(332)11x+10x-38=46(333)43x+4.1=12.7(334)8.2-x=1(335)(5.5x+1.4)÷21=1.9(336)69x-21=117(337)2x+1.4=7.8(338)1.3x+0.2×11=10(339)3(21x-24)=117(340)46x+53x+3.9=162.3(341)0.4x+0.4×49=34.4(342)6(3.7x-5.7)=32.4(343)x-4.9=3.4(344)x+14=81(345)6x-8×0.6=8.4(346)3.9+0.2x=5.5(347)18.7÷x=1.7(348)16x-8x-38=42(349)2x÷12=8(350)43x-48=38(351)7x+15×1.2=25.7(352)196-2x=28(353)14x+4×22=130(354)176÷x=11(355)29x=8.7(356)9x+54x+2.6=97.1(357)9x+11x+45=285(358)45+x=111(359)2.6x÷13=1.2(360)6.2x-5.6x=6.6(361)0.9x÷18=1(362)4x-2x-14=50(363)15.6-2x=8(364)195÷x=3(365)1x+2.4x-4=23.2(366)x÷13=14(367)99+x=180(368)12x+40=112(369)1.9x-0.7×17=5.2(370)2.7x+3.3=8.7(371)0.2x-1.4=2.2(372)x÷37=5(373)137-52x=33(374)198+14x=310(375)180÷x=9(376)9x-3x+12=90(377)7.4-8x=4.2(378)53x+56x-3.2=51.3(379)192÷x=32(380)93x=18.6(381)0.2x+0.6x-1.7=6.3(382)18x÷9=8(383)4.2-x=3(384)88x+91x-0.4=71.2(385)0.2x÷18=0.4(386)x+5.8=6.2(387)14.4+3x=23.4(388)4x+3.2=20.8(389)122-39x=44(390)x-5.8=3(391)9.8+x=18.6(392)12x-8x+3=59(393)14.5+9.9x=34.3(394)44x-11x+0.6=20.4(395)2.5x-1.2x=5.2(396)3.8x-2.8x+0.3=25.3(397)4x+10x-46=80(398)15x+7x-44=66(399)(1.8x+0.3)÷3=11.5(400)2x+56=104(401)81x-45x+3.5=32.3(402)91x-36x+3.5=20(403)5(4x+20)=140(404)x÷18=0.3(405)7x+12x-6=146(406)7.2÷x=1.8(407)3.3x-1.2=5.4(408)8x-28×0.6=2.4(409)17.8-7x=14.3(410)2.3+97x=21.7(411)2x+0.5×39=29.5(412)0.2x+0.2×38=14.4(413)61x+16x-4.2=42(414)14x+10x+19=283(415)17.4-0.4x=8.2(416)16x+4×6=104(417)x+5.4=12.4(418)110+17x=195(419)6.4x-6x=6(420)3.7x+2.2x=47.2(421)3.2x-1.9x=26(422)19x-6x=39(423)10x+7x-36=49(424)4x+53=93(425)9.7x-1.8=17.6(426)30x=90(427)3.8x=19(428)x÷20=0.8(429)14.2-0.2x=4(430)7x-4x+17=44(431)3.8x-3.1x+0.9=7.2(432)18x+3×1.5=24.3(433)(2.7x+5.1)÷5=2.1(434)13x-35×4=55(435)0.5x+1.5=10.5(436)61x-2.1=10.1(437)4x+26×2=88(438)86x-13x-1.9=20(439)18x-13x=25(440)2(0.7x+2.3)=41(441)(9.2x-7.6)÷27=0.4(442)x-15=81(443)15.5+0.2x=28.5(444)45x-8×1.4=2.3(445)19x-16x+37=61(446)3(0.9x+2.2)=41.7(447)10x+12x=176(448)8.1-x=2.2(449)(5x-11)÷7=2(450)46x-3.4=5.8(451)1.6x-1.2x=15.6(452)x-2.3=6.5(453)86-x=19(454)6x+8x-30=40(455)15+x=81(456)2(19x-20)=36(457)2(6x+26)=196(458)4x-10×3=70(459)51+2x=103(460)7x÷4=49(461)19x+33x-0.4=51.6(462)1.2x÷28=0.6(463)23x=46(464)5.6-x=4.3(465)(18x-21)÷23=3(466)1.6x-1x+3.2=27.8(467)4.6x+3.1x=138.6(468)15x+13x+19=75(469)x÷68=2(470)1x-0.3×28=11.6(471)15x+3×27=261(472)3x÷9=21(473)0.5x-4=13.5(474)0.3x=2.4(475)36+x=122(476)7.5x+7.4x-2.9=131.2(477)x-23=58(478)40+3x=127(479)16.7+10x=36.7(480)7x-12×0.5=2.4(481)4.5x+3.3x=70.2(482)1.7+x=2.9(483)(9x-33)÷3=37(484)x+52=88(485)49x-10x-0.7=65.6(486)2.4x=12(487)183-36x=111(488)1x=16(489)7x+16x+42=88(490)73+75x=223(491)(2.9x-7.5)÷7=6.8(492)9.8x-0.7x+4=40.4(493)3x-2.1=2.7(494)4x-3.2=13.2(495)4(0.5x+2.6)=32.4(496)x-18=79(497)2(3x+3)=156(498)53+16x=133(499)10x+6x-30=82(500)1x÷15=1.2(501)x+93=105(502)185-37x=111(503)(2.6x+7.8)÷39=0.6(504)8.3+10x=19.3(505)x-2.9=2.5(506)(2x+1.4)÷27=0.2(507)3(2x+23)=99(508)6x-9×5=27(509)7x=126(510)0.8x+1.2x=26(511)17x+10x=54(512)11x-3×1.7=4.8(513)0.6x-3.7=4.1(514)x÷3=46(515)18x÷8=0.9(516)x+8.3=17.3(517)12x÷18=6(518)24x+2×59=214(519)21(0.3x-4.7)=46.2(520)4.9x+0.8x=108.3(521)48x-15x-3.4=49.4(522)3.9x-2.1x-4.3=1.1(523)14x-42×3=28(524)6-x=4.5(525)11x+51=183(526)11x-7×1.1=3.3(527)8.5÷x=1.7(528)9.8-x=1.7(529)8.1x-3.8x-4.6=29.8(530)6(1.9x-8.7)=27.6(531)97x=194(532)0.3x+4.3×4=20.2(533)13x-4x-46=89(534)99x+67x+4.2=70.6(535)41x-8x-2=44.2(536)6x-45=87(537)(4.4x-3)÷10=6.3(538)7.1+x=15.6(539)x÷4=28(540)132-4x=20参考答案(1)x=14(2)x=5.4(3)x=4(4)x=3(5)x=6(6)x=7.5(7)x=90(8)x=2(9)x=8(10)x=1.9(11)x=32(12)x=82(13)x=12(14)x=11(15)x=2(16)x=2(17)x=81(18)x=2(19)x=1.1(20)x=25(21)x=6(22)x=3.3(23)x=6(24)x=2(25)x=3(26)x=8(27)x=17(28)x=4(29)x=1(30)x=16(31)x=4(32)x=6(33)x=9(34)x=1.6(35)x=3(36)x=15(37)x=20(38)x=8(39)x=5(40)x=14(41)x=2(42)x=13(43)x=11(44)x=15(45)x=9(46)x=2.2(47)x=24(48)x=1.9(49)x=2(50)x=12(51)x=75(52)x=0.5(53)x=6(54)x=10(55)x=6(56)x=29(57)x=6(58)x=0.4(59)x=63(60)x=6.2(61)x=2(62)x=13(63)x=3(64)x=4.9(65)x=8(66)x=54(67)x=14(68)x=2(69)x=19.8(70)x=2(71)x=9(72)x=22(73)x=1.2(74)x=0.3(75)x=10(76)x=5(77)x=41(78)x=0.3(79)x=1.6(80)x=8.4(81)x=4(82)x=5(83)x=2(84)x=1.9(85)x=5(86)x=6(87)x=5.6(88)x=1.4(89)x=1(90)x=8(91)x=24(92)x=3(93)x=2.7(94)x=8(95)x=8(96)x=0.8(97)x=10(98)x=2(99)x=0.7(100)x=6(101)x=4(102)x=6(103)x=14(104)x=8(105)x=0.4(106)x=3(107)x=3(108)x=4(109)x=7(110)x=30(111)x=7.2(112)x=4.3(113)x=5(114)x=10(115)x=0.6(116)x=13(117)x=9(118)x=1.9(119)x=15(120)x=2(121)x=0.4(122)x=35(123)x=38(124)x=0.5(125)x=20(126)x=0.5(127)x=13(128)x=1.1(129)x=67(130)x=18(131)x=41(132)x=1.7(133)x=2(134)x=6.3(135)x=18(136)x=0.6(137)x=0.9(138)x=13(139)x=8(140)x=51(141)x=2(142)x=5.6(143)x=2(144)x=11(145)x=3(146)x=2(147)x=11(148)x=40(149)x=8(150)x=70(151)x=38(152)x=6.8(153)x=3(154)x=16(155)x=25(156)x=29(157)x=6(158)x=28(159)x=14(160)x=9(161)x=0.9(162)x=4(163)x=0.3(164)x=35(165)x=22(166)x=8(167)x=15(168)x=0.5(169)x=0.4(170)x=58(171)x=19(172)x=9(173)x=9(174)x=3.4(175)x=1.1(176)x=0.3(177)x=4(178)x=26(179)x=31(180)x=7(181)x=0.4(182)x=7(183)x=11(184)x=2(185)x=12(186)x=5(187)x=14.8(188)x=52(189)x=28(190)x=2(191)x=17.2(192)x=43(193)x=0.2(194)x=15(195)x=85(196)x=4.3(197)x=2(198)x=42(199)x=3.5(200)x=3(201)x=11(202)x=7(203)x=8.6(204)x=6.6(205)x=13(206)x=1.2(207)x=2(208)x=0.2(209)x=6(210)x=0.6(211)x=19(212)x=23(213)x=3(214)x=7.7(215)x=40(216)x=4(217)x=0.3(218)x=3(219)x=9(220)x=9(221)x=5(222)x=67(223)x=1.4(224)x=0.7(225)x=25(226)x=7(227)x=2(228)x=184(229)x=0.7(230)x=28(231)x=9.1(232)x=14(233)x=0.9(234)x=8(235)x=20(236)x=10(237)x=70(238)x=22(239)x=7.9(240)x=97(241)x=5(242)x=16(243)x=88(244)x=8(245)x=0.3(246)x=1.4(247)x=84(248)x=2(249)x=1.3(250)x=36(251)x=11(252)x=9(253)x=53(254)x=3(255)x=2.7(256)x=64(257)x=23(258)x=30(259)x=0.9(260)x=1.8(261)x=39(262)x=2(263)x=36(264)x=9.1(265)x=8(266)x=22(267)x=27(268)x=3(269)x=3(270)x=5(271)x=33(272)x=3(273)x=1.3(274)x=1.1(275)x=11(276)x=0.3(277)x=10(278)x=6(279)x=0.2(280)x=0.8(281)x=12(282)x=18(283)x=42(284)x=6(285)x=29(286)x=176(287)x=1.4(288)x=132(289)x=6(290)x=5(291)x=6(292)x=11(293)x=9(294)x=11(295)x=19.5(296)x=3(297)x=18(298)x=14(299)x=6(300)x=38(301)x=4(302)x=36(303)x=0.5(304)x=27(305)x=0.9(306)x=3(307)x=49(308)x=9(309)x=8(310)x=14(311)x=1.6(312)x=0.9(313)x=16(314)x=2(315)x=21(316)x=26(317)x=4(318)x=0.2(319)x=9(320)x=16(321)x=0.7(322)x=5.5(323)x=0.9(324)x=6(325)x=3.4(326)x=13(327)x=35(328)x=3.9(329)x=34(330)x=3(331)x=3(332)x=4(333)x=0.2(334)x=7.2(335)x=7(336)x=2(337)x=3.2(338)x=6(339)x=3(340)x=1.6(341)x=37(342)x=3(343)x=8.3(344)x=67(345)x=2.2(346)x=8(347)x=11(348)x=10(349)x=48(350)x=2(351)x=1.1(352)x=84(353)x=3(354)x=16(355)x=0.3(356)x=1.5(357)x=12(358)x=66(359)x=6(360)x=11(361)x=20(362)x=32(363)x=3.8(364)x=65(365)x=8(366)x=182(367)x=81(368)x=6(369)x=9(370)x=2(371)x=18(372)x=185(373)x=2(374)x=8(375)x=20(376)x=13(377)x=0.4(378)x=0.5(379)x=6(380)x=0.2(381)x=10(382)x=4(383)x=1.2(384)x=0.4(385)x=36(386)x=0.4(387)x=3(388)x=4.4(389)x=2(390)x=8.8(391)x=8.8(392)x=1