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)71-x=62(2)0.5x+2×2=15.5(3)19+x=107(4)2x=16.8(5)19x-5=10.2(6)10x+16=186(7)(2x+40)÷16=3(8)8.6+0.6x=17(9)3.8+x=7.9(10)x+36=95(11)23x+2.9=14.4(12)12.6+0.3x=25.5(13)47x+21x-4=50.4(14)1.6x-3.2×2=8(15)0.6x-3=3(16)23x-3x-4.1=33.9(17)6÷x=0.5(18)4(x-20)=60(19)x÷50=3(20)97-3x=76(21)14.5-19x=10.7(22)29x-44=14(23)17x-14x-1.9=8.9(24)4x+11x-20=55(25)9(1.6x+0.4)=46.8(26)1.1x+2.5x-1.8=63(27)x-71=10(28)8x-3x-28=92(29)2x-2.3=13.7(30)x-1.6=6.7(31)8.3+x=12(32)23-3x=17(33)0.4x-5.6=10(34)2.6x-3.1=12.5(35)3x-1.2x+3.3=50.1(36)1.4÷x=0.2(37)19x+14x=264(38)19.5-1.6x=14.7(39)5(4x-10)=70(40)x-4.3=3.3(41)x÷72=2(42)16.2-3.6x=1.8(43)8.9x-3.5x=16.2(44)0.3x+0.4×16=19.9(45)2(2x-3.4)=25.2(46)58x+2.3=13.9(47)12+0.7x=29.5(48)16x=12.8(49)(5.3x+3.3)÷3=17(50)x÷13=1(51)8x-6x=30(52)0.7x-0.2×16=15(53)15.9-2.4x=6.3(54)197+13x=392(55)(3.7x-7.9)÷5=11(56)77x÷22=7(57)5x+2=3(58)19x-15×4=54(59)6.6-x=3.2(60)50+4x=210(61)17x+15x+43=235(62)3x+23×3=264(63)14.2+0.5x=18.7(64)x+67=129(65)x÷2=0.6(66)2(12x-7)=106(67)3x+2×1.7=5.2(68)1.1+x=3(69)19.5+0.6x=20.7(70)4.5x÷9=2(71)9(7x-49)=189(72)9.9-x=4.1(73)2.8x+4.1×2=16.6(74)4x-2x-13=69(75)6x-4×17=112(76)8x÷4=2.2(77)3(3.2x-5.3)=32.1(78)0.7x÷14=1(79)12x-3x-12=60(80)4x-6×2=68(81)0.3x-1.1=4.9(82)50x-13x+4.6=15.7(83)9x-26=154(84)27x+3×36=189(85)66-10x=16(86)17.4-6.3x=4.8(87)3.1x=12.4(88)(3.5x+9.8)÷2=29.4(89)9.9+8.7x=27.3(90)5.1+5x=21.1(91)6.8x+2x=79.2(92)2x-1.8x+4.7=14.3(93)50x-14x-2.3=66.1(94)x+5.7=7.4(95)75-x=60(96)42x-33x+0.3=6.6(97)6x÷45=0.2(98)(5.7x+0.8)÷5=18.4(99)99x-28x-3.1=53.7(100)x÷17=0.5(101)(6x+26)÷22=5(102)3(x-25)=33(103)7x+32x+2.4=68.7(104)104+8x=280(105)63-2x=25(106)11.4÷x=0.3(107)1.3x÷39=0.5(108)(3.6x-3.8)÷2=3.5(109)0.8x+0.3x-0.6=69.8(110)27x÷3=4.5(111)9(0.2x-2.5)=47.7(112)0.2x+3.3x+1.1=43.1(113)11x-7x+2=22(114)26x÷4=39(115)11x+4.1=17.3(116)85x-1.8=15.2(117)2(4x+23)=110(118)(10x-40)÷10=13(119)x-28=36(120)15x-2x+16=94(121)(5x+3.5)÷5=4.7(122)0.5x+1.3=18.8(123)79x+2x-4.9=76.1(124)54+x=139(125)0.5x+0.2x-2.3=14.5(126)4x+45=85(127)46x+78x-3.2=21.6(128)0.3x+4.6=19.3(129)183-6x=39(130)145÷x=5(131)4x=7.6(132)x+3.6=12.9(133)38+x=55(134)2x-1.7×4=3.2(135)26x÷14=1.3(136)5x+13x+28=190(137)1x-2.9=15.1(138)6x+8x+3=353(139)58x÷29=6(140)(4.4x-2)÷14=3(141)x÷63=0.3(142)17x+18x+20=405(143)8.4x+2.1x=52.5(144)8.1-x=2.9(145)4.6x+0.7×14=19(146)x+74=143(147)1.6x-0.5x+2.1=16.4(148)184÷x=46(149)8.1+x=13.8(150)23x=92(151)2.6x-0.5x-1.4=49(152)4.5-x=1.9(153)5.4x-1.3x-0.3=32.5(154)1.3x÷39=0.2(155)8.2÷x=0.2(156)3(0.2x+3.2)=34.8(157)0.7x+0.3×7=16.8(158)4x+53=197(159)4.3x-1.5×5=9.7(160)(3.4x+0.6)÷39=0.8(161)11x-3x+23=71(162)16x+14x+22=202(163)x÷17=7(164)40x+24x-4.9=142.3(165)4.9x+4x+0.2=53.6(166)13x-2x+40=205(167)9x+5x=196(168)0.5x+2.3=16.3(169)11x-3×0.6=8.1(170)3x-2×72=30(171)0.2x=0.8(172)3.5x-1.3x-4.3=41.9(173)(5.4x-1)÷14=0.7(174)1.4x+0.8x=129.8(175)0.2x÷19=0.6(176)(4.8x-0.4)÷4=11.9(177)(13x+43)÷8=20(178)2x+3x=155(179)3x+4=11.2(180)4.4x-2.8x=16(181)7x+9x-3=157(182)12x-6x=18(183)2x÷32=3(184)17x-15×0.3=12.5(185)2x+2×93=200(186)18.5-17x=11.7(187)x-7=49(188)11x-4x-6=57(189)18x=162(190)6.6x+3.9x+0.2=84.2(191)29+x=65(192)7(0.4x-5.4)=37.8(193)78+x=125(194)17.9-1.6x=3.5(195)30x-8×1.7=1.4(196)19.2+0.9x=35.4(197)0.3x+1.8x+3.8=37.4(198)154÷x=7(199)6(0.3x-4.4)=29.4(200)7x+33×0.5=35.4(201)2x=4.2(202)15x+19x=272(203)x÷43=2(204)2.6x-5.1=7.9(205)x+5.6=12.2(206)6x-46=98(207)1.6x-1.3x+2.7=8.1(208)(3.1x+6.6)÷2=25(209)x÷7=1.4(210)x-17=14(211)9x-3x-14=16(212)6x-18=36(213)9x+30×2=177(214)7x+14x-21=42(215)2(0.4x-6.7)=17(216)(8x-18)÷18=11(217)93x-36x-0.4=16.7(218)5(6x-41)=95(219)3x+39×5=270(220)120-8x=16(221)8x-5.1x=23.2(222)11x-5x+41=95(223)14.9-25x=2.4(224)5x-3x=66(225)x÷64=0.2(226)65x-39=91(227)0.4+x=4.6(228)4(1.5x+4.9)=31.6(229)(2x-18)÷9=4(230)40x-8x-2.3=26.5(231)4x-2x-27=45(232)85x-68x+4.8=18.4(233)0.2x+4.5=13.7(234)1x+8.8x+1.6=50.6(235)10(4x-40)=160(236)7.5x-4.6x+1.9=7.7(237)33x-22×0.4=11(238)192÷x=4(239)x+86=107(240)1÷x=0.5(241)8.4x-5.8x+0.9=11.3(242)3(3x-16)=195(243)2x-0.5×20=8(244)(2x+1.2)÷4=5.3(245)15.7-27x=10.3(246)91x-8x+4.8=54.6(247)0.3x+3.4×5=22.7(248)2(8x+17)=82(249)69-x=25(250)2(0.3x+6.3)=23.4(251)5(0.2x+2.9)=29.5(252)x÷4=4(253)3.7x+2.6x=81.9(254)7.5x+2.7x+3.2=23.6(255)9.8x-1.6x-1.9=22.7(256)59x+17=194(257)3x=69(258)32x=192(259)45x+65x+3=69(260)18.7-0.8x=1.9(261)38x-5.8=9.4(262)21x+25=193(263)1.9+x=6.2(264)6.6-x=3.4(265)(7x+20)÷4=47(266)67+x=163(267)x-1.3=6.9(268)2.6÷x=1.3(269)(1.2x+9.6)÷4=8.1(270)1+8x=17(271)7.3x-5.2x+3.6=28.8(272)12x-3×0.5=14.1(273)1.4x=2.8(274)2x+12=90(275)2x+8×6=86(276)x÷20=0.8(277)(8x+26)÷38=3(278)91-x=76(279)9-x=7.3(280)17.8-0.6x=1(281)(11x-16)÷2=91(282)16.8÷x=2.1(283)4x+3.9=21.9(284)x+8.3=12.8(285)x-4.3=5.3(286)8(0.5x+2.4)=27.2(287)4.3x=17.2(288)74x÷37=0.4(289)3(0.4x+0.9)=21.9(290)16x-9×0.6=7.4(291)18x-8x-8=52(292)18x=18(293)75x-2.3=12.7(294)7.6x+6.2x=27.6(295)x+7.6=13.4(296)x+9.5=11.2(297)3x-11=37(298)82x-28x+4.2=42(299)x-18=40(300)5x+4x-30=24(301)30+58x=146(302)18.8+8x=20.4(303)16x+10x-39=143(304)x-67=31(305)16x+14x=180(306)2.4x÷16=1.2(307)4.2÷x=2.1(308)17x-10x-11=38(309)4.1x+6.1x+0.4=51.4(310)29x+42×0.3=24.2(311)144+5x=239(312)0.2x=8.2(313)1x=8(314)3.3x+0.3x-4.5=71.1(315)(6x-26)÷5=8(316)4x+20×0.9=26(317)3.7+2.9x=12.4(318)4x-2x-0.4=31.6(319)7x+38×3=177(320)3(4x+3)=69(321)0.2x-2.7=1.1(322)18x-10x+40=64(323)9.7-5x=5.7(324)1.7x-0.2x+0.9=39.9(325)3.7x+5.2=12.6(326)8.7-0.9x=6.9(327)51÷x=17(328)0.3x÷9=1(329)x-1.2=5.6(330)16x+17x+1.6=28(331)9x+7x+9=89(332)8.2x-6.1x=14.7(333)65x-2.6=10.4(334)3x+16×0.6=16.8(335)14x+11x+21=321(336)3(15x+36)=198(337)x-0.6=3.3(338)x÷11=8(339)7x-4x=81(340)8x÷24=0.3(341)x÷5=18(342)0.8x+0.2×25=24.2(343)18.6-24x=13.8(344)3x÷8=9(345)55x-24x+1.3=47.8(346)(18x+32)÷13=8(347)4.3x-1.6x=21.6(348)8x-13=67(349)(7.7x+5.4)÷8=2.6(350)6x-4x+20=50(351)7x-3x+30=142(352)75÷x=25(353)19x+9x+35=119(354)10.9+3x=24.4(355)9(2x+7)=189(356)2x-3.2=11.6(357)25x+59=159(358)111-2x=105(359)3(0.2x+7.2)=33.6(360)21x-58=68(361)4.1x-2.9x=25.2(362)21x=8.4(363)56x-32x-1.4=39.4(364)62-x=38(365)17.6-0.4x=5.2(366)2.1x+2.2=12.7(367)18+3x=33.6(368)0.2x=8.8(369)11.9+13x=17.1(370)175-6x=145(371)x+97=183(372)27x-2.7=16.2(373)x÷25=0.3(374)4x-2x-1.5=9.7(375)26x-2x+4.8=72(376)4.3x-2.2=6.4(377)3(3x-45)=180(378)6.9x-3x-2.1=5.7(379)12x+39x+0.9=113.1(380)48x+64x+0.5=78.9(381)x+44=111(382)(12x+37)÷17=17(383)23x-11×6=72(384)1.2x-1.9×4=8(385)(2.9x-5.1)÷20=2.5(386)(5.7x-6.6)÷6=0.8(387)23x+7x-1.1=43.9(388)3.2x+1.5x=131.6(389)40x+42x+3.4=52.6(390)80x+89x+3.6=37.4(391)2.5x-0.5×4=5.5(392)15x-31=119(393)10x÷95=0.2(394)(3.3x-2.9)÷10=4(395)66+x=159(396)x÷69=0.2(397)4.6x-2.8x=16.2(398)3.9x+0.9x+3.1=60.7(399)14.1+6.5x=33.6(400)6.6x+9x=31.2(401)5(7x+2)=185(402)(11x-4)÷23=7(403)6x=192(404)25x÷10=2(405)12x-9x=45(406)13(0.2x-7.1)=24.7(407)26x=18.2(408)2.8+x=10(409)6x+9×20=300(410)5.2x+3.3x-0.8=41.7(411)(19x+2)÷10=23(412)(3x-24)÷24=1(413)14x=196(414)8x-4x=60(415)15x-12×1=7.5(416)16.6-13x=3.6(417)81x-68x+1.9=9.7(418)5x+15x+29=189(419)17x-10x=56(420)58x-5=12.4(421)63x+1=13.6(422)x-6.3=2.9(423)x+63=129(424)54-x=31(425)3(10x+20)=180(426)6x-3x=51(427)5.2x+3.6x=52.8(428)2(9x+24)=174(429)x÷12=4(430)x+8.3=10.4(431)7x-23×2=73(432)18.6-3x=8.7(433)10x=190(434)16x-30×2=68(435)10x+2×84=208(436)14x+2x-25=135(437)29x+22x+0.2=51.2(438)74x+41x-3.8=42.2(439)x-24=40(440)164-2x=10(441)8.7-x=5.5(442)0.5x+4.5=10.5(443)4.2x+2.7=11.1(444)17x-13x-2.3=20.5(445)4x+4×4.2=31.6(446)2x+3x-26=94(447)44x=132(448)x+66=70(449)3.6+13x=21.8(450)17x+43×0.2=22.2(451)8.5x-3x=22(452)46-x=31(453)2(x+44)=120(454)x-4.4=4.2(455)0.3x+4.2=9(456)x-4.9=3.8(457)4x+14x-25=119(458)69x+97x+4.6=137.4(459)x-48=37(460)37x-3x+3.3=47.5(461)1.2x+4.1x+4.3=120.9(462)2(0.9x-3)=4.8(463)14x-5×18=64(464)31+49x=129(465)0.4x+0.3×26=23.8(466)9.2x=18.4(467)5.4+x=10.7(468)2(1.6x+2.1)=10.6(469)6x-1.1=12.7(470)1.1x-0.2x-3.6=34.2(471)69x+76x-4.6=154.9(472)x+1.6=3.9(473)18x-2x=96(474)11x+27×0.5=15.7(475)x-77=20(476)0.2x÷4=4.7(477)15x÷9=5(478)x+6.7=14.9(479)4.1x+0.5x=82.8(480)9.9-x=5.3(481)12x-9x+19=37(482)5x÷6=1(483)2x=6(484)8.2-x=4.5(485)4x-0.4×7=13.2(486)9x-2×4.6=9.7(487)10x÷4=15(488)14x-6x-29=75(489)189+18x=297(490)5.4+29x=19.9(491)2.7x+7.2x-4.8=74.4(492)3x+4x-4=12.8(493)(3.3x-6.2)÷14=3.8(494)8.5x+1.7x-3=27.6(495)12.8-3x=1.7(496)17x+16x-23=76(497)4x=9.2(498)(13x-12)÷35=3(499)60÷x=15(500)0.7x÷28=0.5(501)10x+8x=324(502)39x+25=181(503)x÷5=13(504)2.3x-1.7x-3.5=1.3(505)x+40=85(506)14÷x=2.8(507)1.8x-0.5×12=13.8(508)0.2x+0.2×33=15.4(509)9x+8x=238(510)91+x=124(511)27x=13.5(512)4x-12×10=72(513)28x-15×1=4.6(514)107+7x=135(515)159÷x=3(516)24x+27x-1.6=59.6(517)6.6x-4.5x+0.8=17.6(518)171÷x=9(519)2.8+x=12.7(520)6x=150(521)9.9x-4.1x=58(522)10x+15x=275(523)2x+34=94(524)2.4x+0.9x-4.7=58(525)3x+3.9=15.3(526)100x+5=25(527)24x+3×0.6=9(528)29+96x=221(529)7x+8x=330(530)61+x=128(531)8(0.3x-2.2)=49.6(532)8.9+34x=15.7(533)(2x+46)÷31=2(534)1.8x-0.9x-3.9=23.1(535)0.9x+5.3x-4.8=20(536)66x÷9=22(537)55-x=51(538)(13x-37)÷5=29(539)54-x=41(540)2x÷4=24参考答案(1)x=9(2)x=23(3)x=88(4)x=8.4(5)x=0.8(6)x=17(7)x=4(8)x=14(9)x=4.1(10)x=59(11)x=0.5(12)x=43(13)x=0.8(14)x=9(15)x=10(16)x=1.9(17)x=12(18)x=35(19)x=150(20)x=7(21)x=0.2(22)x=2(23)x=3.6(24)x=5(25)x=3(26)x=18(27)x=81(28)x=24(29)x=8(30)x=8.3(31)x=3.7(32)x=2(33)x=39(34)x=6(35)x=26(36)x=7(37)x=8(38)x=3(39)x=6(40)x=7.6(41)x=144(42)x=4(43)x=3(44)x=45(45)x=8(46)x=0.2(47)x=25(48)x=0.8(49)x=9(50)x=13(51)x=15(52)x=26(53)x=4(54)x=15(55)x=17(56)x=2(57)x=0.2(58)x=6(59)x=3.4(60)x=40(61)x=6(62)x=65(63)x=9(64)x=62(65)x=1.2(66)x=5(67)x=0.6(68)x=1.9(69)x=2(70)x=4(71)x=10(72)x=5.8(73)x=3(74)x=41(75)x=30(76)x=1.1(77)x=5(78)x=20(79)x=8(80)x=20(81)x=20(82)x=0.3(83)x=20(84)x=3(85)x=5(86)x=2(87)x=4(88)x=14(89)x=2(90)x=3.2(91)x=9(92)x=48(93)x=1.9(94)x=1.7(95)x=15(96)x=0.7(97)x=1.5(98)x=16(99)x=0.8(100)x=8.5(101)x=14(102)x=36(103)x=1.7(104)x=22(105)x=19(106)x=38(107)x=15(108)x=3(109)x=64(110)x=0.5(111)x=39(112)x=12(113)x=5(114)x=6(115)x=1.2(116)x=0.2(117)x=8(118)x=17(119)x=64(120)x=6(121)x=4(122)x=35(123)x=1(124)x=85(125)x=24(126)x=10(127)x=0.2(128)x=49(129)x=24(130)x=29(131)x=1.9(132)x=9.3(133)x=17(134)x=5(135)x=0.7(136)x=9(137)x=18(138)x=25(139)x=3(140)x=10(141)x=18.9(142)x=11(143)x=5(144)x=5.2(145)x=2(146)x=69(147)x=13(148)x=4(149)x=5.7(150)x=4(151)x=24(152)x=2.6(153)x=8(154)x=6(155)x=41(156)x=42(157)x=21(158)x=36(159)x=4(160)x=9(161)x=6(162)x=6(163)x=119(164)x=2.3(165)x=6(166)x=15(167)x=14(168)x=28(169)x=0.9(170)x=58(171)x=4(172)x=21(173)x=2(174)x=59(175)x=57(176)x=10(177)x=9(178)x=31(179)x=2.4(180)x=10(181)x=10(182)x=3(183)x=48(184)x=1(185)x=7(186)x=0.4(187)x=56(188)x=9(189)x=9(190)x=8(191)x=36(192)x=27(193)x=47(194)x=9(195)x=0.5(196)x=18(197)x=16(198)x=22(199)x=31(200)x=2.7(201)x=2.1(202)x=8(203)x=86(204)x=5(205)x=6.6(206)x=24(207)x=18(208)x=14(209)x=9.8(210)x=31(211)x=5(212)x=9(213)x=13(214)x=3(215)x=38(216)x=27(217)x=0.3(218)x=10(219)x=25(220)x=13(221)x=8(222)x=9(223)x=0.5(224)x=33(225)x=12.8(226)x=2(227)x=4.2(228)x=2(229)x=27(230)x=0.9(231)x=36(232)x=0.8(233)x=46(234)x=5(235)x=14(236)x=2(237)x=0.6(238)x=48(239)x=21(240)x=2(241)x=4(242)x=27(243)x=9(244)x=10(245)x=0.2(246)x=0.6(247)x=19(248)x=3(249)x=44(250)x=18(251)x=15(252)x=16(253)x=13(254)x=2(255)x=3(256)x=3(257)x=23(258)x=6(259)x=0.6(260)x=21(261)x=0.4(262)x=8(263)x=4.3(264)x=3.2(265)x=24(266)x=96(267)x=8.2(268)x=2(269)x=19(270)x=2(271)x=12(272)x=1.3(273)x=2(274)x=39(275)x=19(276)x=16(277)x=11(278)x=15(279)x=1.7(280)x=28(281)x=18(282)x=8(283)x=4.5(284)x=4.5(285)x=9.6(286)x=2(287)x=4(288)x=0.2(289)x=16(290)x=0.8(291)x=6(292)x=1(293)x=0.2(294)x=2(295)x=5.8(296)x=1.7(297)x=16(298)x=0.7(299)x=58(300)x=6(301)x=2(302)x=0.2(303)x=7(304)x=98(305)x=6(306)x=8(307)x=2(308)x=7(309)x=5(310)x=0.4(311)x=19(312)x=41(313)x=8(314)x=21(315)x=11(316)x=2(317)x=3(318)x=16(319)x=9(320)x=5(321)x=19(322)x=3(323)x=0.8(324)x=26(325)x=2(326)x=2(327)x=3(328)x=30(329)x=6.8(330)x=0.8(331)x=5(332)x=7(333)x=0.2(334)x=2.4(335)x=12(336)x=2(337)x=3.9(338)x=88(339)x=27(340)x=0.9(341)x=90(342)x=24(343)x=0.2(344)x=24(345)x=1.5(346)x=4(347)x=8(348)x=10(349)x=2(350)x=15(351)x=28(352)x=3(353)x=3(354)x=4.5(355)x=7(356)x=7.4(357)x=4(358)x=3(359)x=20(360)x=6(361)x=21(362)x=0.4(363)x=1.7(364)x=24(365)x=31(366)x=5(367)x=5.2(368)x=44(369)x=0.4(370)x=5(371)x=86(372)x=0.7(373)x=7.5(374)x=5.6(375)x=2.8(376)x=2(377)x=35(378)x=2(379)x=2.2(380)x=0.7(381)x=67(382)x=21(383)x=6(384)x=13(385)x=19(386)x=2(387)x=1.5(388)x=28(389)x=0.6(390)x=0.2(391)x=3(392)x=10(393)x=1.9(394)x=13(