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)0.2x÷40=0.4(2)45x-38x+1.3=15.3(3)7x+18x-33=17(4)4.1+0.6x=17.9(5)54-x=44(6)0.3x=6.9(7)7x+4x+14=234(8)5x=120(9)2(3x+28)=200(10)6x+9x=105(11)x+14=75(12)69x+83x-2.7=42.9(13)x÷4=2(14)12÷x=4(15)0.5x-0.3×4=5.3(16)2.2x+4.8=11.4(17)14-32x=7.6(18)13x-7x-5=49(19)87x-70x+1.2=8(20)1.9x-1.1x+1.4=4.6(21)2x+5x-44=33(22)16.5-0.5x=11(23)8x+3x=99(24)2.9x+1.1×3=20.7(25)11x÷22=0.8(26)2.5x+8.6x=33.3(27)46x=138(28)8.4÷x=0.7(29)10x+33×6=358(30)11x=8.8(31)5(0.9x-7)=19(32)7.8x+2.8=18.4(33)x-85=11(34)27x÷9=0.9(35)7.9+x=10.9(36)75+x=84(37)40x+17x+0.7=91.9(38)16.5+16x=34.1(39)5.7+0.3x=17.4(40)4x-0.3x=77.7(41)1.6x÷4=4.8(42)92x+41x+3.6=30.2(43)86x=17.2(44)x+69=75(45)6(0.2x+0.9)=29.4(46)8.1-2.5x=3.1(47)29x+5×13=210(48)13x+5×1.7=21.5(49)4.7x+1x-0.7=44.9(50)4.1x-5.8=6.5(51)48x-41×0.2=1.4(52)0.2x=2.8(53)0.9x-0.4x+0.3=7.3(54)3(1.1x-1.1)=39.6(55)x-6.5=1.2(56)3.3x-0.2×9=18(57)41+9x=176(58)54x-41x+4.7=19(59)181-24x=133(60)6x=168(61)20x+5×0.7=11.5(62)x÷12=7(63)0.8x+4.9×2=26.6(64)6.6÷x=2.2(65)(4x+8)÷4=12(66)9x+12x+37=79(67)x-2=7.4(68)10.2-4x=1(69)11x-11×1.5=2.2(70)180-21x=117(71)78-x=72(72)(0.9x+1.9)÷16=0.4(73)4.8+3x=11.1(74)8x-6x-1.8=16(75)x÷7=15(76)14x÷35=2(77)6.6x-3.3x+3.6=20.1(78)6.2x+6.6x=89.6(79)42x÷7=24(80)0.9x+1.9=19(81)3.6+x=10.3(82)5x+50x+2.3=106.8(83)84-x=54(84)176÷x=4(85)93+4x=165(86)17.5-0.4x=12.7(87)12.5-2x=7.9(88)(8.2x-7)÷24=2.1(89)17.2-1.6x=12.4(90)39x-3.6=12(91)13x-6x-30=33(92)13x+34=138(93)3x÷2=12(94)15x-7x+18=58(95)13x-2x+39=149(96)x-15=64(97)6.1+x=7(98)170÷x=17(99)2x÷4=28(100)2(2x-12)=80(101)45x+71x+2.3=118.3(102)6.9-x=1.4(103)5x-26×3=12(104)42÷x=3(105)4x=19.6(106)1.8x-1.6x+3.8=10.8(107)2(8.3x+3.9)=41(108)10x-8x=26(109)x÷2=11(110)15x-8x-49=35(111)3x+16x-12=216(112)x-6.2=3.2(113)3.2x-5.1=10.9(114)0.5x-2.9×5=3(115)6.8x-0.7x=54.9(116)2.8x-4.8=6.4(117)x÷7=1.4(118)17x+80x+4.2=52.7(119)175-38x=99(120)(15x+49)÷13=13(121)13x-6x+12=26(122)38x-28x+0.2=11.2(123)51-x=16(124)9x÷6=2.4(125)110-4x=62(126)13.8-3x=4.8(127)62x+82x-3.3=97.5(128)6x+13x=285(129)0.6x+1.3=7.3(130)5.8+18x=25.6(131)x-37=38(132)7.8x-0.3x=67.5(133)18x-10x+45=133(134)0.5x-3.9=1.6(135)49-x=25(136)67x-44x-0.8=3.8(137)9.5-x=6.2(138)165÷x=5(139)59x-54x+3.9=5.4(140)4.2x-0.3x+3.6=58.2(141)x-21=60(142)8.1x-7.4x-3.5=2.8(143)(8x+24)÷46=4(144)13x-4×0.7=16.7(145)10x-15×4=20(146)1.3x÷39=0.5(147)34x-9x-0.9=29.1(148)3x+4x+14=259(149)x÷17=4(150)(11x-35)÷9=12(151)0.7x+1.1x+4.8=67.8(152)0.9x-1.9×3=14.1(153)4.8x+0.2x-1.6=73.4(154)31+x=59(155)6.8÷x=3.4(156)3.2÷x=1.6(157)6x-3×0.9=9.3(158)(3.2x-8.2)÷2=2.3(159)3.4-x=1.5(160)(12x-18)÷11=18(161)13.2+3x=28.2(162)16x-9x+16=51(163)7x=133(164)x+5.9=11(165)18x-14x-17=11(166)0.2x=16.4(167)(9x-34)÷16=8(168)134-61x=12(169)0.6x-3.9=9.9(170)2(x+37)=88(171)5(x+8)=110(172)36x+33=177(173)53-x=21(174)8x+36=100(175)x÷99=2(176)2.1x+0.8x-1.2=80(177)15x÷2=3(178)19.5-4x=3.5(179)10(2x-32)=140(180)167+8x=287(181)45+x=99(182)(14x+21)÷7=19(183)9x=9.9(184)x+29=75(185)6.5+x=7.1(186)9.1x+1.4x-1.1=51.4(187)2(9x+48)=150(188)0.8x+3.3=8.1(189)3(0.4x+6.9)=36.3(190)23x-2×2.7=10.7(191)9.8x-7.6x-3.3=12.1(192)2(4x+36)=136(193)169+22x=323(194)x÷49=0.2(195)3x+2.2x-0.7=46.1(196)0.7x-2×3=10.1(197)11.1+26x=16.3(198)18x+4x-15=51(199)13x+7x-17=223(200)104÷x=26(201)29x-1.9=15.5(202)5x=125(203)6x-56=124(204)x÷45=2(205)7x-2×12=95(206)0.4x+2.5×8=30(207)10x=3(208)11x-6x=85(209)6x+6×2.4=16.8(210)8.6-x=7.3(211)(9.5x+0.5)÷11=3.5(212)(3.7x+0.2)÷19=0.4(213)9x+7x+19=339(214)32-x=23(215)6x-7×0.4=11.6(216)38x=152(217)x÷2=0.3(218)7x+2x=108(219)(3.9x+7.8)÷14=3.9(220)4.9x+2.3x-1.5=92.1(221)(11x+18)÷25=6(222)x+73=85(223)18x+27x+4.2=80.7(224)13.2÷x=0.4(225)7.4x-0.8x-0.9=32.1(226)2(2.3x-2.4)=18.2(227)3x-1.3=2(228)4(4x+10)=200(229)12x-8x-6=34(230)5.6x+4.2x=107.8(231)x+94=178(232)(18x-12)÷2=120(233)1.1x+1×11=17.6(234)(8.9x-8.3)÷2=35.9(235)56x+8x-3.4=22.2(236)x+8.9=14.9(237)16.1-0.9x=13.4(238)2.9+x=4.1(239)x+45=91(240)20x+35×2=230(241)2.3x+1.4x=7.4(242)7.5+x=17.3(243)15x-7x+2=42(244)0.2x=8.6(245)(5x-5)÷5=26(246)x+69=114(247)4(2.1x+6)=40.8(248)29x-14×0.6=6.1(249)10x-3.1=16.9(250)18+x=79(251)0.6x-4.1=6.1(252)x-31=56(253)6.3x-5.3x+2.6=12.6(254)(5.9x-4.6)÷19=1(255)0.2x+5.9=12.7(256)14x-3x-29=114(257)8.9x+8.4x=69.2(258)4.9x-0.9×7=8.4(259)17x-11x=30(260)13x+2×4.6=28.7(261)73x-30x+4.9=56.5(262)4(x+0.8)=31.2(263)9x+4x-4.3=15.2(264)14.6-4x=1(265)97x+63x-4.4=123.6(266)2x+18×3=80(267)4.6+x=6.9(268)13x+15x=280(269)0.4x+2.4x+4.5=80.1(270)43x-23x-1=11(271)3.8x-0.3×8=12.8(272)16x÷32=2(273)(1.9x-0.7)÷6=4(274)13x-6x=21(275)7(0.6x-1.5)=31.5(276)x-3=1.9(277)3.3x-0.9x=40.8(278)x÷33=4(279)6x+2x-45=179(280)5x+3.3=8.3(281)5x+48=78(282)6(0.8x+1.9)=30.6(283)9(0.2x-2)=25.2(284)x-1=3.9(285)0.6x+4.3=18.7(286)3.4x-0.5×6=10.6(287)23x-12=149(288)2.5x-1=14(289)(3.6x-1.6)÷7=0.8(290)5x+5×3.4=27.5(291)5x+6×17=172(292)2(0.4x+7.2)=16.8(293)2x+3.5=13.7(294)4x+1.4x=129.6(295)44+x=74(296)17.8+1.7x=31.4(297)12x-39×3=39(298)10x+14=154(299)(2.7x-0.6)÷33=0.8(300)3(10x+14)=132(301)30x-36=24(302)2x+9x=110(303)4÷x=2(304)4x-2.1=5.5(305)9x+4×1.4=21.8(306)14(3x-39)=168(307)4x+32×0.4=21.6(308)14x+17×10=226(309)x+3.3=6.3(310)10x-5.5=4.5(311)44÷x=4(312)4(5x+13)=172(313)44x÷11=1.2(314)4(0.5x+5.7)=32.8(315)7.8x-4.9x+3.4=17.9(316)6x+12x-42=84(317)7.4x-3.8x-0.6=42.6(318)19x+12x=186(319)5x-16×0.4=1.6(320)5x-2x=96(321)(6x+42)÷16=9(322)2x=6.6(323)x÷46=4(324)54x-23x-3.8=14.8(325)5x-3x+43=99(326)7x+46=95(327)(11x+14)÷15=20(328)2x-28=110(329)7.8x+2.9x-3.3=103.7(330)6(5x-19)=126(331)152+2x=170(332)39+x=85(333)x÷11=1.8(334)19.7+2.1x=26(335)9.4x+6.8x-4.3=44.3(336)6.7x-3.5x+1=42.6(337)9x-10×8=91(338)5.3-x=3.5(339)x+6.9=8.4(340)8.7x+2.3x=110(341)0.3x+0.3×2=8.1(342)1.1x-0.4x-3.2=47.9(343)4.7x+5.3x+4.2=124.2(344)8x=10.4(345)7x+2×74=281(346)4(1.7x+2.8)=38.4(347)73x+44x-3=137.4(348)16.6-44x=3.4(349)x÷5=0.9(350)7.1x+1.7x+3.7=74.1(351)70x-38x+3.1=15.9(352)49x-32x+1.8=32.4(353)(2.8x+1.4)÷14=1.1(354)(6.2x-2.5)÷11=7.1(355)6.4x-1.1x-2.7=60.9(356)15x-9x=30(357)x÷49=4(358)9x+5.9x=74.5(359)6x+5x-2=163(360)26x+3.1=16.1(361)8x-5×21=55(362)2(5x-41)=88(363)17x+13x-34=146(364)x+5.3=7.1(365)60+98x=256(366)42x+4.3=21.1(367)15x-2x+2=145(368)3x-2.7=12.9(369)11x+8x+32=203(370)11x+19x+47=107(371)x+8.1=13.7(372)86x+90x+1.6=36.8(373)0.6x+2.2×4=17.8(374)4.6x+2.7x+2.8=148.8(375)5.8x-2.6x-0.5=12.3(376)14x=140(377)0.3x÷57=0.2(378)10x+8x=324(379)3.6x-0.3x=42.9(380)90÷x=10(381)79x-51x-0.8=27.2(382)3.4x+7.7x+1.3=23.5(383)5.9+2x=7.3(384)11x-8x-32=16(385)5.4+39x=21(386)3x+52=211(387)65x+37x-2.3=120.1(388)x÷38=0.5(389)0.2x+0.2×43=12.2(390)1.6x÷3=3.2(391)11÷x=1.1(392)x+8.7=11.5(393)x-79=13(394)47x-6×1.4=1(395)17.9+3.2x=37.1(396)6x-2x=56(397)62x-52=72(398)x+11=15(399)1x=6(400)19.1-1x=10.1(401)7(1.2x-3.2)=44.8(402)44+x=64(403)9.2-x=8.7(404)2x÷8=18(405)6.2x+9.7x+1.7=128.9(406)15x+3=13.5(407)33x÷3=44(408)2.5x+1.3×4=25.2(409)7x-3.9=15.7(410)17x-2x=45(411)2.8x=19.6(412)5(9x-17)=185(413)4x=1.6(414)9.9-x=3.3(415)(2x+49)÷5=11(416)24x+65x-3.7=120.9(417)5+0.2x=19.2(418)x-6.6=1.8(419)(11x-22)÷20=11(420)0.6x=18(421)x-20=50(422)13x-3x-32=18(423)62x+52x+3=60(424)(4x+2.4)÷7=7.2(425)11.3-11x=4.7(426)18x-28=152(427)86x+4x-2=43(428)3(1.5x-9.9)=42.3(429)(3.2x+4)÷3=12(430)60-x=28(431)(15x-36)÷12=12(432)9x+2x+48=191(433)92÷x=4(434)1.5x=7.5(435)2x-1.7x+1.7=14(436)5.6+5x=19.1(437)(9.4x-0.4)÷20=2.8(438)7x+5.9=10.1(439)4.1x-0.3x-3.8=49.4(440)7x-55=141(441)x-4.3=5.1(442)4.7x-3.2x=28.5(443)x÷2=4.5(444)7x-2x=120(445)4x+17=25(446)3(13x-43)=144(447)57x-41x-0.9=23.1(448)37x-27x-1.9=7.1(449)2x-16=104(450)x-1.1=4.8(451)x+96=107(452)2.7+x=3.1(453)0.6x÷7=2.4(454)3x÷9=21(455)75x÷30=0.5(456)(13x-5)÷14=8(457)2.5x-2.3=2.7(458)19x+3×24=110(459)3.8x+8.1x+1.7=73.1(460)11x-5×19=92(461)16.3+1x=30.3(462)1.6x-0.5x=34.1(463)3.6x-3.8=3.4(464)15(2x+7)=165(465)3x+4.1=20.6(466)14.7-17x=6.2(467)12+7x=166(468)7(3.7x-6.1)=9.1(469)19÷x=0.2(470)4x+3.9x+4.6=178.4(471)187-7x=159(472)3(6.1x-7.1)=15.3(473)2.7x+0.6×14=13.8(474)x-34=27(475)17x+6×2.6=34.3(476)x-30=56(477)3x-2×33=81(478)2x+20=160(479)20x-9x-4.7=38.2(480)(5x-25)÷3=20(481)5x+5×35=185(482)x÷2=4.4(483)3x=3.6(484)11x-1.5=17.2(485)42x÷12=14(486)4x+2.6x=79.2(487)5x=160(488)6.8+2x=20(489)0.5x+4x-4.1=76.9(490)x+8.1=9.7(491)23+x=41(492)15.4÷x=0.7(493)13x-11x+12=36(494)187-3x=58(495)3(4x-24)=180(496)189+7x=336(497)62x-29x+3.5=10.1(498)43x+32×0.5=28.9(499)x+6.3=13.6(500)10.4+1.1x=18.1(501)14+x=27(502)89x+71x+1.5=65.5(503)0.2x+5.1=16.9(504)20x÷10=0.8(505)85-11x=63(506)4x+16x+43=183(507)8.9x-5x=19.5(508)9x-39=69(509)x-0.4=1.5(510)16x-7x-17=91(511)20x÷40=0.4(512)7.2x-3.2x-2.4=33.6(513)18.3-0.2x=6.9(514)187+2x=323(515)0.8x÷16=0.2(516)3x-9×2=33(517)6.6-x=5.9(518)9x+10x=323(519)1.3x-0.9x=9.2(520)5.1x÷6=1.7(521)184-3x=154(522)19.2-4x=9.6(523)0.8x-0.2×6=13.2(524)0.8x÷20=0.4(525)6.7-x=2.9(526)4x+3x+21=287(527)(10x+4)÷2=102(528)12x+4.5=15.3(529)10x+1.1=12.1(530)78-x=27(531)0.4x=8(532)(2.6x+8.4)÷3=10.6(533)30x=120(534)5.8+x=11(535)17.1+5x=27.1(536)0.8x+1.3=8.5(537)(8x+22)÷2=95(538)16.5-0.2x=14.7(539)2(4x-19)=146(540)2x÷6=1.6参考答案(1)x=80(2)x=2(3)x=2(4)x=23(5)x=10(6)x=23(7)x=20(8)x=24(9)x=24(10)x=7(11)x=61(12)x=0.3(13)x=8(14)x=3(15)x=13(16)x=3(17)x=0.2(18)x=9(19)x=0.4(20)x=4(21)x=11(22)x=11(23)x=9(24)x=6(25)x=1.6(26)x=3(27)x=3(28)x=12(29)x=16(30)x=0.8(31)x=12(32)x=2(33)x=96(34)x=0.3(35)x=3(36)x=9(37)x=1.6(38)x=1.1(39)x=39(40)x=21(41)x=12(42)x=0.2(43)x=0.2(44)x=6(45)x=20(46)x=2(47)x=5(48)x=1(49)x=8(50)x=3(51)x=0.2(52)x=14(53)x=14(54)x=13(55)x=7.7(56)x=6(57)x=15(58)x=1.1(59)x=2(60)x=28(61)x=0.4(62)x=84(63)x=21(64)x=3(65)x=10(66)x=2(67)x=9.4(68)x=2.3(69)x=1.7(70)x=3(71)x=6(72)x=5(73)x=2.1(74)x=8.9(75)x=105(76)x=5(77)x=5(78)x=7(79)x=4(80)x=19(81)x=6.7(82)x=1.9(83)x=30(84)x=44(85)x=18(86)x=12(87)x=2.3(88)x=7(89)x=3(90)x=0.4(91)x=9(92)x=8(93)x=8(94)x=5(95)x=10(96)x=79(97)x=0.9(98)x=10(99)x=56(100)x=26(101)x=1(102)x=5.5(103)x=18(104)x=14(105)x=4.9(106)x=35(107)x=2(108)x=13(109)x=22(110)x=12(111)x=12(112)x=9.4(113)x=5(114)x=35(115)x=9(116)x=4(117)x=9.8(118)x=0.5(119)x=2(120)x=8(121)x=2(122)x=1.1(123)x=35(124)x=1.6(125)x=12(126)x=3(127)x=0.7(128)x=15(129)x=10(130)x=1.1(131)x=75(132)x=9(133)x=11(134)x=11(135)x=24(136)x=0.2(137)x=3.3(138)x=33(139)x=0.3(140)x=14(141)x=81(142)x=9(143)x=20(144)x=1.5(145)x=8(146)x=15(147)x=1.2(148)x=35(149)x=68(150)x=13(151)x=35(152)x=22(153)x=15(154)x=28(155)x=2(156)x=2(157)x=2(158)x=4(159)x=1.9(160)x=18(161)x=5(162)x=5(163)x=19(164)x=5.1(165)x=7(166)x=82(167)x=18(168)x=2(169)x=23(170)x=7(171)x=14(172)x=4(173)x=32(174)x=8(175)x=198(176)x=28(177)x=0.4(178)x=4(179)x=23(180)x=15(181)x=54(182)x=8(183)x=1.1(184)x=46(185)x=0.6(186)x=5(187)x=3(188)x=6(189)x=13(190)x=0.7(191)x=7(192)x=8(193)x=7(194)x=9.8(195)x=9(196)x=23(197)x=0.2(198)x=3(199)x=12(200)x=4(201)x=0.6(202)x=25(203)x=30(204)x=90(205)x=17(206)x=25(207)x=0.3(208)x=17(209)x=0.4(210)x=1.3(211)x=4(212)x=2(213)x=20(214)x=9(215)x=2.4(216)x=4(217)x=0.6(218)x=12(219)x=12(220)x=13(221)x=12(222)x=12(223)x=1.7(224)x=33(225)x=5(226)x=5(227)x=1.1(228)x=10(229)x=10(230)x=11(231)x=84(232)x=14(233)x=6(234)x=9(235)x=0.4(236)x=6(237)x=3(238)x=1.2(239)x=46(240)x=8(241)x=2(242)x=9.8(243)x=5(244)x=43(245)x=27(246)x=45(247)x=2(248)x=0.5(249)x=2(250)x=61(251)x=17(252)x=87(253)x=10(254)x=4(255)x=34(256)x=13(257)x=4(258)x=3(259)x=5(260)x=1.5(261)x=1.2(262)x=7(263)x=1.5(264)x=3.4(265)x=0.8(266)x=13(267)x=2.3(268)x=10(269)x=27(270)x=0.6(271)x=4(272)x=4(273)x=13(274)x=3(275)x=10(276)x=4.9(277)x=17(278)x=132(279)x=28(280)x=1(281)x=6(282)x=4(283)x=24(284)x=4.9(285)x=24(286)x=4(287)x=7(288)x=6(289)x=2(290)x=2.1(291)x=14(292)x=3(293)x=5.1(294)x=24(295)x=30(296)x=8(297)x=13(298)x=14(299)x=10(300)x=3(301)x=2(302)x=10(303)x=2(304)x=1.9(305)x=1.8(306)x=17(307)x=2.2(308)x=4(309)x=3(310)x=1(311)x=11(312)x=6(313)x=0.3(314)x=5(315)x=5(316)x=7(317)x=12(318)x=6(319)x=1.6(320)x=32(321)x=17(322)x=3.3(323)x=184(324)x=0.6(325)x=28(326)x=7(327)x=26(328)x=69(329)x=10(330)x=8(331)x=9(332)x=46(333)x=19.8(334)x=3(335)x=3(336)x=13(337)x=19(338)x=1.8(339)x=1.5(340)x=10(341)x=25(342)x=73(343)x=12(344)x=1.3(345)x=19(346)x=4(347)x=1.2(348)x=0.3(349)x=4.5(350)x=8(351)x=0.4(352)x=1.8(353)x=5(354)x=13(355)x=12(356)x=5(357)x=196(358)x=5(359)x=15(360)x=0.5(361)x=20(362)x=17(363)x=6(364)x=1.8(365)x=2(366)x=0.4(367)x=11(368)x=5.2(369)x=9(370)x=2(371)x=5.6(372)x=0.2(373)x=15(374)x=20(375)x=4(376)x=10(377)x=38(378)x=18(379)x=13(380)x=9(381)x=1(382)x=2(383)x=0.7(384)x=16(385)x=0.4(386)x=53(387)x=1.2(388)x=19(389)x=18(390)x=6(391)x=10(392)x=2.8(393)x=92(394)x=0.