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)90-x=59(2)19.9-34x=6.3(3)32x-4.8=1.6(4)40-x=33(5)27x÷3=3.6(6)(12x-49)÷5=7(7)4x+94×2=348(8)9.1x=18.2(9)3.1x-4.3=14.3(10)22x+3x+0.8=60.8(11)97+26x=253(12)0.7x+5.5=12.5(13)64x=12.8(14)3.8x+4.1x=173.8(15)x÷11=1.4(16)2(x+5)=66(17)13x+5x+35=251(18)8.4x+2.1=18.9(19)5.7x=11.4(20)0.4x+3.2=16(21)x÷6=30(22)x÷58=0.3(23)7.1-x=4.4(24)3x-0.2x+0.7=9.1(25)6x-3.9=12.3(26)4.5x+5.4=14.4(27)14x+4×3.6=21.4(28)8x-2x-4.3=17.3(29)11.6+10x=14.6(30)16(0.4x-9)=41.6(31)10.9+0.2x=17.5(32)7x-2x+37=102(33)0.3x=5.4(34)7.6-x=5.1(35)0.3x+5.9=8(36)13x+7x-31=169(37)(9.8x-1.5)÷3=28.9(38)18x+5×2.1=28.5(39)6x-5.7=12.9(40)6x+3x-36=126(41)19x-8x=22(42)(9x+8)÷2=94(43)16.8-2.7x=6(44)2x+7x=162(45)7x-12×0.4=3.6(46)29x+5.1=10.9(47)4x+3x+26=180(48)6.4x-3.5x+3.3=9.1(49)13x+14x+18=315(50)5.9x-0.7x=67.6(51)x+3.6=10.4(52)3.6x-2.1x-2.9=34.6(53)14x-6x-44=28(54)130+93x=316(55)5.5-0.3x=4.3(56)88-x=81(57)2(3.8x+0.5)=39(58)2.9x-0.9x+1.1=53.1(59)50x-8x-1.9=10.7(60)4x+17×0.5=26.9(61)3.4+0.3x=12.7(62)7÷x=0.7(63)56x÷42=4(64)x+2.5=9.6(65)x+7.5=10.8(66)15x-8×0.5=15.5(67)x+47=60(68)7.2+7x=23.3(69)47+x=64(70)4(1.5x-2.3)=44.8(71)18.9-5x=9.4(72)20x+2×14=208(73)17.1+0.5x=21.6(74)3.2÷x=0.4(75)165÷x=33(76)6x=96(77)15(24x-37)=165(78)46x-16x+0.7=15.7(79)7x=154(80)7x-5.4x-1.3=6.7(81)0.7x÷49=0.3(82)12x-8x-4.7=23.3(83)0.7x=2.8(84)2(2x+30)=124(85)(x+28)÷35=1(86)3x÷18=0.2(87)156-16x=108(88)x+99=116(89)3(0.3x+4.3)=39.9(90)0.5+x=8.4(91)15x-9×0.7=1.2(92)6x÷3=0.4(93)2.6-6x=1.4(94)2.2x-0.5x+4.6=21.6(95)198-3x=183(96)18x+3×0.9=11.7(97)13.3+14x=27.3(98)43x+89x-0.4=52.4(99)20x+2×44=228(100)67+2x=173(101)196-19x=101(102)2x+9x-20=167(103)44+x=63(104)11x-2x-23=139(105)x-51=24(106)3(8x-19)=39(107)8.5x-6.7x-2.7=2.7(108)54x-4=6.8(109)17x+12x-43=131(110)16x-10x-22=32(111)(12x-31)÷7=11(112)7x+4x-46=240(113)x÷12=0.6(114)195+6x=393(115)0.3x+2.1=15.6(116)18.4÷x=2.3(117)3.9+x=10.7(118)0.6x-1.5×6=5.4(119)3.7x+1.7=9.1(120)2(0.8x-7.1)=40.2(121)2.7÷x=0.3(122)x-2=36(123)48x-35x-2.7=5.1(124)8x+9x+3.4=59.5(125)x-5.7=1.4(126)85-x=25(127)0.3x-0.3×10=4.2(128)85-x=16(129)8.5x-3.2x+1.3=11.9(130)8x÷3=32(131)80x+5.2=21.2(132)4.2x-3.8x=1.2(133)59x+26x+3.9=97.4(134)99x-14x+3.4=54.4(135)19x-5x=140(136)4.2x=8.4(137)11x-31=156(138)8.6x-2.9x=39.9(139)3(5x+23)=114(140)8x+6x=168(141)x-1.9=3.5(142)37x-6x+3.7=37.8(143)26x+52x+0.8=47.6(144)7.7÷x=0.7(145)13x-11=184(146)0.6x-2.6×2=12.2(147)9x-6x-2.8=21.2(148)52x-19x+3.2=42.8(149)14x-13=99(150)3.9x+2.6x-2.6=127.4(151)2.8x+7.2x-2.1=27.9(152)x÷6=12(153)6x-55=65(154)x-3.7=5.2(155)5.3+x=12.4(156)6x+25x-2.7=77.9(157)28x÷21=0.8(158)13x-6x+46=123(159)28x-2×77=14(160)x-4.8=3.7(161)20x+5×17=185(162)5(2x-46)=50(163)3x-44=49(164)3.1x+0.8x=54.6(165)(3.4x+5.8)÷20=0.8(166)x+3.8=13.3(167)7.7x-4.6x=27.9(168)4x-3.1=11.3(169)(13x+34)÷7=29(170)9.1-32x=2.7(171)3x+4.1x-0.8=56(172)7x+2x+2.4=20.4(173)31x-26x+4.6=16.1(174)25x÷5=30(175)1.3x-5.1=13.1(176)11x-4x+13=83(177)33x+26x+4.7=105(178)6.9-x=2.5(179)15x-37×2=61(180)0.8x+0.8×21=20.8(181)2x-33=157(182)20÷x=5(183)2x+7×6=84(184)(8.4x-1)÷2=45.7(185)10.5+16x=23.3(186)11x+14x-3.5=86.5(187)18x-49=77(188)3.5x÷5=2.8(189)36x÷12=0.6(190)3x-20×3=21(191)(1.8x+8.3)÷11=3.7(192)5x+11x-25=23(193)14x-9x+20=75(194)x÷4=21(195)0.3x=7.8(196)(6.5x+9.1)÷39=1.4(197)2(4.9x-9.4)=40(198)(2.2x-8.8)÷5=2.2(199)10.1+8.8x=27.7(200)x+87=167(201)182÷x=14(202)x-7=2.1(203)33x-18x-0.8=15.7(204)21x-4.1=4.3(205)18x+15×0.4=9.6(206)x-48=42(207)0.6x+4.6×3=25.2(208)3x+0.6×20=27(209)0.2x=2.8(210)150÷x=3(211)135-41x=12(212)13+0.3x=14.5(213)x-63=23(214)1.2x-3.7=3.5(215)0.9x+0.2×39=27.6(216)(6x+6)÷9=6(217)14x-9x-22=33(218)3.6x÷90=0.2(219)131-9x=86(220)7x+44=114(221)3.8x-2.2×6=5.8(222)x+75=155(223)8(0.8x-8.1)=18.4(224)4.2x+0.8x+4.4=64.4(225)0.9x=4.5(226)4.2x+5.5x=106.7(227)x+46=69(228)20x+7×2.7=38.9(229)3x÷75=2(230)40÷x=8(231)4.9+x=11.5(232)15x÷3=2.5(233)0.3x-4.7=9.4(234)62x+16x-3.5=105.7(235)8.1x-5.9x+2.3=26.5(236)3x=189(237)1.3x-0.5x+1.1=48.3(238)179-31x=55(239)4x+36×0.5=36(240)85x-46x-2.3=17.2(241)0.3x÷30=0.4(242)x-3.7=5.5(243)9.8x+5.5x=30.6(244)9.9x-4.6x-1.5=30.3(245)3x=156(246)60x-24=156(247)8x+33=233(248)16(20x-48)=192(249)19.2+0.5x=25.7(250)2(6.4x-8.4)=21.6(251)(2x-7.6)÷28=0.8(252)13x+4.6=18.9(253)2(0.9x+1.8)=37.8(254)x÷11=0.3(255)73x-14x+4.6=28.2(256)13.3+5x=31.3(257)9x+8x-45=159(258)81x-48x+3.2=29.6(259)1.5+x=7.3(260)9.9x-8.2x=5.1(261)(7.5x-0.3)÷6=8.7(262)162+2x=184(263)1.1x+3.2x-3.5=91.1(264)17x-2x=90(265)3x-7×12=12(266)7x+8x=330(267)2x=6.4(268)9.1+x=14(269)5.7+2x=14.3(270)8x+5x+13=286(271)85x÷5=34(272)5(x-21)=105(273)2(x+17)=104(274)19x-6x=26(275)(2x+16)÷6=12(276)5.8x-3.7x=6.3(277)7.8-x=6(278)78+6x=198(279)3.6x+0.8x+2.7=86.3(280)75+x=104(281)x-44=48(282)4.6x+9.9x=43.5(283)0.8x-0.6x+1=5(284)x÷33=5(285)9.8÷x=0.2(286)x+43=45(287)7.8x-2.7x-3.1=17.3(288)6.3x+9.9x-0.5=48.1(289)x÷38=0.5(290)(5.3x-8)÷11=6.5(291)x÷30=0.2(292)4.8x+0.4×27=25.2(293)4.2x-2.7x-1.7=8.8(294)11x+10×1.6=33.6(295)8x+4x=276(296)11x+29x-1.4=86.6(297)5(2x-13)=185(298)x-1.1=1(299)48x-16x-3.1=54.5(300)8(4x-10)=144(301)8x+9x-21=285(302)5x+13x+49=85(303)2x+2.7=7.9(304)7x+8x=180(305)2.4x+4=8.8(306)7.1x-6.5x+1.8=6(307)9.1-x=6.6(308)9(0.4x-9.6)=21.6(309)42-x=29(310)8x=6.4(311)0.2x+0.3×10=5.4(312)0.8x+1.2x=114(313)2x-2.3=7.1(314)4x÷20=0.5(315)7.1-2.7x=1.7(316)11x=15.4(317)7.8x-4.5x=13.2(318)29x+10×1.2=20.7(319)30x+3.6=21.6(320)4-x=2(321)2x=50(322)2(2x+19)=198(323)9x+90×2=207(324)25x+3×35=180(325)4x-18=58(326)18x-9x-42=48(327)6.9x+7.4x+3.7=103.8(328)9x-2x+32=186(329)8x-3×2.5=6.1(330)4.4x+1.9×3=23.3(331)6.3x-1x=37.1(332)14(2.9x-8.3)=46.2(333)8x+2.8=10(334)2x+3x+23=183(335)x+53=123(336)5x+11x=96(337)4x+55=139(338)15x+10x=100(339)15x-10x+31=41(340)(6x-33)÷15=1(341)9.1x-2.8x-3.4=15.5(342)3x-4.1=7.6(343)0.6+x=9.1(344)65÷x=13(345)2.5x÷30=0.5(346)3.1x+4.2x-1.1=35.4(347)1.3x+1.7×2=12.5(348)32x=160(349)5.6-0.9x=1.1(350)(5x-11)÷6=14(351)2(7x+39)=148(352)0.8x÷24=0.3(353)63x+87x+2.1=137.1(354)18.4-0.2x=2.8(355)9.1+0.2x=18.7(356)(5.5x+3.5)÷5=8.4(357)2(6x-21)=102(358)2.2+0.2x=9.2(359)(8x+29)÷49=5(360)2(7x+3.8)=49.6(361)15x-8x=42(362)(0.6x+2.1)÷3=4.3(363)(9x-8)÷5=38(364)7.8+13x=13(365)38x÷19=4(366)x÷55=2(367)78+x=113(368)4.4-x=1.8(369)4.7x-5.6=3.8(370)9x+16=169(371)5x-4×1.7=7.2(372)42x-5x+4.2=70.8(373)84÷x=7(374)2x=130(375)3.1x+3.8x=20.7(376)9.3x-3.5x=29(377)9.5-4x=5.1(378)x÷91=2(379)8x+17x-39=236(380)19.8-8.1x=3.6(381)35x÷14=5(382)x-4.1=2.3(383)15.1-0.4x=3.1(384)15x+5×7=155(385)x+3.6=13.5(386)9x-3x+21=117(387)x-29=14(388)x÷6=23(389)14x-3x-20=79(390)3+x=73(391)174-29x=29(392)1x+3x=8(393)4x-4×26=92(394)73x+71x+3.8=90.2(395)45x÷12=1.5(396)28x+36=148(397)12x+53=149(398)2x=1.2(399)17x+14x+7=100(400)8x-8×1.2=3.2(401)2(6x+25)=74(402)13x+37x-3.7=16.3(403)15x-11x=16(404)11-14x=5.4(405)(3x+18)÷9=9(406)10x-5x-22=73(407)1x-2.8=10.2(408)4.8-x=2.4(409)162+29x=336(410)25x-5×0.6=14.5(411)x-19=45(412)(5x+9)÷49=1(413)x÷6=29(414)39+x=56(415)20x-10×0.2=10(416)8.3x+6x+1.9=59.1(417)19(0.6x+0.2)=38(418)x+8.4=9.5(419)(2.8x+1.6)÷8=5.1(420)x+1.5=6.1(421)17.8+24x=29.8(422)1x-0.6×2=14.8(423)1.5x÷18=1(424)(3x+2)÷2=7(425)13.5-2x=1.1(426)x-24=68(427)16x+13x=87(428)2.2x+0.2×6=14.4(429)x+87=149(430)28x=16.8(431)11x-7x+0.4=30.4(432)2(2.7x+2.7)=27(433)39-x=35(434)19x-3x-2=126(435)5x+8.2x+0.5=119.3(436)169-6x=103(437)(5x-33)÷11=7(438)6x-43×3=45(439)0.2x=14(440)4x-4.4=9.6(441)2x+34×5=260(442)x÷10=4(443)(17x-41)÷21=11(444)5x-4.2x-1.8=9.4(445)6.8x+7.6x=28.8(446)27+x=52(447)x+0.3=3.3(448)2(0.3x+9)=34.8(449)4x=8(450)(7.3x-6.9)÷3=19.6(451)(7x-42)÷21=3(452)10.6÷x=0.2(453)3.5x+0.9x+1=36.2(454)17x+13x+17=347(455)(13x-36)÷3=66(456)95-x=28(457)(7x-8)÷6=8(458)60x+56x-4.4=18.8(459)3.5x÷5=1.4(460)17x-15x+41=63(461)3.8x-0.6×11=1(462)7x+3.5=16.8(463)9.5+2x=13.3(464)162÷x=6(465)x-3=75(466)48x=144(467)0.4x-0.5×3=10.1(468)0.8+x=8.4(469)7x-8×0.5=7.9(470)105+2x=167(471)2÷x=0.2(472)10x+8x=108(473)8x=4(474)x-4.8=4.7(475)2(2.5x+5.7)=41.4(476)12(x-2)=156(477)x+6.7=9.1(478)x÷3=3.1(479)7.3x-6.8x-1.3=3.7(480)18.3-0.7x=9.9(481)(4x+3.6)÷2=21.8(482)0.9x+0.3x-0.2=26.2(483)2x-2.7×4=9.2(484)9.7-x=3.1(485)2.8x-3×2=13.6(486)9.8x+2.5x+0.7=37.6(487)4(x+5)=156(488)0.4x+2.9x-2.3=20.8(489)19.3-0.9x=3.1(490)12+x=34(491)9x+5.7=21.9(492)8.9x+5.9=23.7(493)2(x+17)=110(494)7.5x+1.2x-0.5=86.5(495)31+x=94(496)4.2÷x=0.3(497)86x+35x-0.7=84(498)13x+8x+23=149(499)11x-3x+43=171(500)47-x=30(501)6x÷33=4(502)3.1x+6.4x+1.8=87.3(503)2x=164(504)5.5x+3.8x+1.9=94.9(505)20x÷12=0.5(506)x+88=130(507)15x=6(508)29x-7×3=66(509)5.3+x=13.7(510)19x-12x=56(511)71x-13x-3.4=37.2(512)176-2x=50(513)65x+25=220(514)9x-7x=34(515)x÷9=0.7(516)x÷5=2.4(517)22x-31×3=61(518)6x÷12=1.5(519)3x+3=9.3(520)10x-4x-13=83(521)19x-6x=65(522)0.9x-3.5=1.9(523)8.9+0.4x=19.7(524)14x-29×3=81(525)19.6-3x=10.6(526)182+3x=335(527)7x+13=34(528)7x-1.8=12.2(529)5x÷14=10(530)5.7x-3.8=7.6(531)87x+16x+2.2=33.1(532)18÷x=3(533)2x+25=159(534)14(1.7x-2.4)=14(535)19.5-51x=9.3(536)2(2.4x+0.3)=39(537)(6.8x-1)÷3=11(538)(0.4x+1.2)÷24=0.1(539)(1.9x+2.2)÷7=1.4(540)36x+21x-4.6=80.9参考答案(1)x=31(2)x=0.4(3)x=0.2(4)x=7(5)x=0.4(6)x=7(7)x=40(8)x=2(9)x=6(10)x=2.4(11)x=6(12)x=10(13)x=0.2(14)x=22(15)x=15.4(16)x=28(17)x=12(18)x=2(19)x=2(20)x=32(21)x=180(22)x=17.4(23)x=2.7(24)x=3(25)x=2.7(26)x=2(27)x=0.5(28)x=3.6(29)x=0.3(30)x=29(31)x=33(32)x=13(33)x=18(34)x=2.5(35)x=7(36)x=10(37)x=9(38)x=1(39)x=3.1(40)x=18(41)x=2(42)x=20(43)x=4(44)x=18(45)x=1.2(46)x=0.2(47)x=22(48)x=2(49)x=11(50)x=13(51)x=6.8(52)x=25(53)x=9(54)x=2(55)x=4(56)x=7(57)x=5(58)x=26(59)x=0.3(60)x=4.6(61)x=31(62)x=10(63)x=3(64)x=7.1(65)x=3.3(66)x=1.3(67)x=13(68)x=2.3(69)x=17(70)x=9(71)x=1.9(72)x=9(73)x=9(74)x=8(75)x=5(76)x=16(77)x=2(78)x=0.5(79)x=22(80)x=5(81)x=21(82)x=7(83)x=4(84)x=16(85)x=7(86)x=1.2(87)x=3(88)x=17(89)x=30(90)x=7.9(91)x=0.5(92)x=0.2(93)x=0.2(94)x=10(95)x=5(96)x=0.5(97)x=1(98)x=0.4(99)x=7(100)x=53(101)x=5(102)x=17(103)x=19(104)x=18(105)x=75(106)x=4(107)x=3(108)x=0.2(109)x=6(110)x=9(111)x=9(112)x=26(113)x=7.2(114)x=33(115)x=45(116)x=8(117)x=6.8(118)x=24(119)x=2(120)x=34(121)x=9(122)x=38(123)x=0.6(124)x=3.3(125)x=7.1(126)x=60(127)x=24(128)x=69(129)x=2(130)x=12(131)x=0.2(132)x=3(133)x=1.1(134)x=0.6(135)x=10(136)x=2(137)x=17(138)x=7(139)x=3(140)x=12(141)x=5.4(142)x=1.1(143)x=0.6(144)x=11(145)x=15(146)x=29(147)x=8(148)x=1.2(149)x=8(150)x=20(151)x=3(152)x=72(153)x=20(154)x=8.9(155)x=7.1(156)x=2.6(157)x=0.6(158)x=11(159)x=6(160)x=8.5(161)x=5(162)x=28(163)x=31(164)x=14(165)x=3(166)x=9.5(167)x=9(168)x=3.6(169)x=13(170)x=0.2(171)x=8(172)x=2(173)x=2.3(174)x=6(175)x=14(176)x=10(177)x=1.7(178)x=4.4(179)x=9(180)x=5(181)x=95(182)x=4(183)x=21(184)x=11(185)x=0.8(186)x=3.6(187)x=7(188)x=4(189)x=0.2(190)x=27(191)x=18(192)x=3(193)x=11(194)x=84(195)x=26(196)x=7(197)x=6(198)x=9(199)x=2(200)x=80(201)x=13(202)x=9.1(203)x=1.1(204)x=0.4(205)x=0.2(206)x=90(207)x=19(208)x=5(209)x=14(210)x=50(211)x=3(212)x=5(213)x=86(214)x=6(215)x=22(216)x=8(217)x=11(218)x=5(219)x=5(220)x=10(221)x=5(222)x=80(223)x=13(224)x=12(225)x=5(226)x=11(227)x=23(228)x=1(229)x=50(230)x=5(231)x=6.6(232)x=0.5(233)x=47(234)x=1.4(235)x=11(236)x=63(237)x=59(238)x=4(239)x=4.5(240)x=0.5(241)x=40(242)x=9.2(243)x=2(244)x=6(245)x=52(246)x=3(247)x=25(248)x=3(249)x=13(250)x=3(251)x=15(252)x=1.1(253)x=19(254)x=3.3(255)x=0.4(256)x=3.6(257)x=12(258)x=0.8(259)x=5.8(260)x=3(261)x=7(262)x=11(263)x=22(264)x=6(265)x=32(266)x=22(267)x=3.2(268)x=4.9(269)x=4.3(270)x=21(271)x=2(272)x=42(273)x=35(274)x=2(275)x=28(276)x=3(277)x=1.8(278)x=20(279)x=19(280)x=29(281)x=92(282)x=3(283)x=20(284)x=165(285)x=49(286)x=2(287)x=4(288)x=3(289)x=19(290)x=15(291)x=6(292)x=3(293)x=7(294)x=1.6(295)x=23(296)x=2.2(297)x=25(298)x=2.1(299)x=1.8(300)x=7(301)x=18(302)x=2(303)x=2.6(304)x=12(305)x=2(306)x=7(307)x=2.5(308)x=30(309)x=13(310)x=0.8(311)x=12(312)x=57(313)x=4.7(314)x=2.5(315)x=2(316)x=1.4(317)x=4(318)x=0.3(319)x=0.6(320)x=2(321)x=25(322)x=40(323)x=3(324)x=3(325)x=19(326)x=10(327)x=7(328)x=22(329)x=1.7(330)x=4(331)x=7(332)x=4(333)x=0.9(334)x=32(335)x=70(336)x=6(337)x=21(338)x=4(339)x=2(340)x=8(341)x=3(342)x=3.9(343)x=8.5(344)x=5(345)x=6(346)x=5(347)x=7(348)x=5(349)x=5(350)x=19(351)x=5(352)x=9(353)x=0.9(354)x=78(355)x=48(356)x=7(357)x=12(358)x=35(359)x=27(360)x=3(361)x=6(362)x=18(363)x=22(364)x=0.4(365)x=2(366)x=110(367)x=35(368)x=2.6(369)x=2(370)x=17(371)x=2.8(372)x=1.8(373)x=12(374)x=65(375)x=3(376)x=5(377)x=1.1(378)x=182(379)x=11(380)x=2(381)x=2(382)x=6.4(383)x=30(384)x=8(385)x=9.9(386)x=16(387)x=43(388)x=138(389)x=9(390)x=70(391)x=5(392)x=2(393)x=49(3