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)33x÷22=3(2)1.1x+2.1x-4.9=135.9(3)80-5x=15(4)47x-27x-0.3=25.7(5)6.4x-1.4x+3=63(6)3.1x-2.8x=3.3(7)14x-4x-36=64(8)x÷13=7(9)3.5-x=1.8(10)17.3-26x=9.5(11)69-x=11(12)x-1.4=5.2(13)60x÷6=20(14)(5.5x-2.5)÷8=10(15)14x-3x-47=63(16)114-5x=54(17)21x+7x+4.5=60.5(18)x-2.6=2.2(19)10x=18(20)0.9x+0.8x+0.6=168.9(21)7x÷14=1.4(22)15.9+55x=26.9(23)x-15=50(24)89x-20x-0.5=47.8(25)3(x+4)=57(26)5.5x-4x+0.8=26.3(27)30x+5.5=20.5(28)8x÷6=2.4(29)x÷29=0.2(30)18-3x=12.6(31)11x=16.5(32)5x=7(33)9.1-x=8(34)2x+56=92(35)1.7x+1.3x+4=37(36)20x-2×52=96(37)19+1.3x=35.9(38)0.5x-1=16(39)8x-6x-24=12(40)97+15x=187(41)13x-5x=32(42)0.8x÷44=0.4(43)6.6x-1.7x+1.9=11.7(44)84÷x=3(45)13.5-5x=10(46)x÷26=0.3(47)79x-57x+1.3=25.5(48)x-2.7=6.6(49)x+67=97(50)4(1.4x+2.9)=22.8(51)7x=13.3(52)14.3-41x=2(53)1.5x-0.6x+0.4=48.1(54)(14x+23)÷45=3(55)10x÷34=5(56)3.5x+3.3=17.3(57)0.3x+0.4×46=20.8(58)152+11x=229(59)13x-8x-24=31(60)3.4x-1.2=15.8(61)3.8+x=4.9(62)5x+7x-12=108(63)4.8x÷32=0.6(64)4(21x-39)=180(65)2x-1.6=4.4(66)5x=19(67)(4.8x+3.6)÷34=1.8(68)5.3x-2.7x-2.1=36.9(69)12x-4x+36=100(70)(4.5x+7)÷5=5.9(71)8.2-8x=6.6(72)15x+3x=144(73)24x+47x-1.4=112.2(74)x+86=113(75)12x-30=90(76)3.8-x=2.8(77)x+7.5=11.5(78)4x+3×0.5=6.7(79)12x=24(80)4x-5.1=1.7(81)20x=160(82)x-5=25(83)28+2x=176(84)2(5x-21)=128(85)7.1+0.4x=10.3(86)8x-6x=34(87)164-22x=120(88)x-6.1=2.8(89)23x+2×57=252(90)3(2x+11)=99(91)1.5x+0.9×11=14.4(92)5x+3x=160(93)(6x+30)÷6=22(94)47x-24×0.6=4.4(95)0.2x+5.6=21.4(96)14.6-4.5x=1.1(97)7x-6.4x+2.2=4(98)(6x-33)÷5=27(99)52x-17=139(100)16x-5x+38=82(101)4.1+x=10.9(102)x÷22=0.5(103)16x+6x=110(104)19.4+4.6x=37.8(105)18x÷9=14(106)84÷x=14(107)x+8.1=10.1(108)2x+4×26=170(109)0.3x+0.4×25=21.1(110)4.2x-3.4x=12(111)18+46x=36.4(112)3(0.7x-9.3)=30.9(113)8.8+x=9.7(114)85-x=51(115)7x-3x-43=37(116)9.9x+8.4x=128.1(117)4x+14×4=164(118)47x+46x-2.1=100.2(119)16x-10x+35=47(120)13x-5x+3.9=47.9(121)2(22x-29)=118(122)15x+2.5=20.5(123)179-17x=94(124)12x-26=130(125)3.9x+2.6x+1.1=157.1(126)6(1.6x+0.7)=23.4(127)8.2x-1.8x-1.3=30.7(128)13.1-6x=7.7(129)x+6.3=14(130)99+x=169(131)x-77=22(132)0.5x÷95=0.2(133)x-3=67(134)8÷x=2(135)0.7x=7.7(136)(18x+6)÷26=3(137)174÷x=2(138)2x=13.4(139)4x+4.4=14.4(140)54x+4x+1.9=30.9(141)(5.7x-7.9)÷10=8.9(142)5x+9x-46=262(143)13x+18x=62(144)8x-3×1.9=14.3(145)2x+52=242(146)3x+39×0.2=11.7(147)x÷39=3(148)x+0.7=4.2(149)3.3x=16.5(150)58x÷4=2.9(151)197+16x=293(152)6x+1=13(153)x÷3=27(154)4(0.3x+4.6)=22(155)(4.8x+3.9)÷3=30.1(156)7x+6x=260(157)8x-3x+12=82(158)16.3+1.1x=30.6(159)x+42=127(160)x÷5=0.5(161)57-x=27(162)2x+8x+13=173(163)1.8x+4×3=31.8(164)71x-3x-3.1=37.7(165)7.1x-6.4x+1.8=10.9(166)4x÷40=0.5(167)14x-2x-39=57(168)18-0.8x=4.4(169)3.2-x=1(170)x-3.5=3.2(171)0.2x÷5=1.2(172)x÷5=11(173)11x=99(174)2(6x+23)=178(175)11.6-0.3x=2.9(176)2.9x-1.8x-4.7=5.2(177)31x-7×2=1.5(178)10x+14x+33=321(179)23x-25×0.2=4.2(180)x-32=31(181)(7x-18)÷23=5(182)96+x=131(183)8x-73×2=46(184)x-31=26(185)(1.4x-6)÷2=6.1(186)18.4÷x=4.6(187)24x-4x+4.5=44.5(188)18.2-22x=13.8(189)x-7.9=1.6(190)7.8+3x=9.3(191)8.8x-5.1x+0.8=30.4(192)20+x=79(193)4.3+x=6.8(194)x÷29=5(195)2x+5×1=12.2(196)2(15x+21)=102(197)0.5x-1.1=11.9(198)19.4-0.6x=16.4(199)4x+16x-3.1=74.9(200)3x-2.1x+1.4=11.3(201)6(0.7x+1.7)=48(202)16x+8x-18=78(203)2.6x+0.2×36=22.8(204)(7x+42)÷3=77(205)4(5.8x-6.7)=19.6(206)13x+4x+2=189(207)0.8x+0.7x=19.5(208)11x-21=34(209)(6.2x-4.6)÷4=22.1(210)2.3x+3.2x-2.6=107.4(211)11x+30x+4.9=17.2(212)94-x=36(213)2.8x+3.3x=48.8(214)135÷x=27(215)(6x+4.5)÷9=2.5(216)0.6x-0.2×3=6(217)0.2x+5.8=15(218)x+4=51(219)x-63=15(220)15x-4x=132(221)6x+8×7=146(222)46x+97x-1=99.1(223)195-7x=13(224)47x-44x+2.9=4.1(225)190-4x=122(226)9x-6×2.1=4.5(227)14x÷6=28(228)81+64x=209(229)(7x+34)÷8=13(230)36x-24=120(231)0.9x+5.9=14.9(232)8.9x-5.2x=40.7(233)29-x=21(234)10x-6x+8=88(235)0.8x=2.4(236)0.5x=7.5(237)(3.9x+6.5)÷26=0.7(238)x+95=111(239)0.9x-2.3=5.8(240)4x+11x+25=100(241)x÷5=19(242)5.3x-0.7x-1.1=49.5(243)5x+37=87(244)3x-52×2=40(245)13.2+6x=28.8(246)14x-1.8=15(247)x+79=124(248)4x=60(249)x+83=114(250)5.9x+6.1x-1.7=34.3(251)69x=138(252)9x-6x=54(253)(19x-24)÷7=21(254)5.8x-4.1x=5.1(255)x÷4=14(256)4x-5×2.5=5.5(257)70x-4.1=9.9(258)10(5.2x-6.5)=39(259)(0.2x+6.2)÷12=0.8(260)31x-36×0.2=8.3(261)1.5x+0.7×24=19.8(262)18+0.2x=28.4(263)30x=120(264)0.2x+4.4=7(265)15.6÷x=0.3(266)16.4+15x=19.4(267)3.8x-1.4x-1.4=8.2(268)6(7x-2)=198(269)12÷x=2.4(270)x-43=37(271)11.7+23x=23.2(272)1.5x+2.3x=22.8(273)16x+18x+46=114(274)4x+17x+4=109(275)33x÷11=15(276)(4.9x-1.7)÷2=21.2(277)25x-3.3=4.2(278)2x+1.2=7.2(279)11x+13x+17=209(280)34x+37=105(281)63x+39x+3.4=95.2(282)5x+3=14(283)6x+26=224(284)x÷3=3.6(285)2.5x-1x=18(286)5(7x-30)=165(287)11+1.1x=17.6(288)7.9x+5.3x=118.8(289)x+4=39(290)(10x-8)÷4=38(291)6.7x+5.8x=25(292)1.4x+8.3x+3.1=41.9(293)128÷x=4(294)90x+35x+4.5=67(295)(11x-11)÷6=33(296)2.2x+1.1x+3.5=89.3(297)2x+7×22=176(298)8.9+1.7x=19.1(299)96-x=82(300)2x+15×8=126(301)10x+6x-24=88(302)7x+18x-30=20(303)13x-5x-23=65(304)9x+14x-19=119(305)3.2x-1.1x-1.7=48.7(306)34x-2x+4.5=23.7(307)2x-37×2=10(308)12x+20×1=26(309)8.4-x=3.5(310)36x-21x-3.3=25.2(311)7.9x-7.1x-1=7.8(312)131+3x=212(313)(5x-15)÷10=9(314)0.6x-0.6×3=7.8(315)10x-4x=90(316)x+3.1=11.5(317)1.6x÷2=3.2(318)26x÷4=3.9(319)0.7x+1.3×2=21.5(320)x-2.3=1.8(321)3(x+2)=42(322)9x=12.6(323)2.6x+7.6x-4.9=56.3(324)1.1x-1.2=13.1(325)2x÷6=2.7(326)2.9x-0.6×17=4.3(327)15(0.2x-6.4)=39(328)5x+4.9=14.9(329)4x+2×15=98(330)(5.8x-6.8)÷5=5.6(331)19.5-10x=3.5(332)8x-6x=48(333)190÷x=38(334)5x-2x+49=121(335)5x÷6=25(336)89+4x=185(337)3x-8×6=96(338)16x-6×11=94(339)x÷13=4(340)10x+31×0.3=28.3(341)4(25x-33)=168(342)7.9x+7.8x-2.3=60.5(343)x-2.4=5.9(344)9.4-x=1.7(345)2.9+x=4.9(346)2(3x+4)=158(347)93-5x=73(348)0.5x-0.6×17=2.3(349)(8x+4)÷17=12(350)150÷x=3(351)2(1.3x+7.7)=31(352)11x-7x=64(353)2.6x+3.1×3=14.5(354)4x-3.8=9.4(355)1.7x=6.8(356)29x-35=139(357)22x-4.4=13.2(358)(3x-47)÷20=2(359)3.8+2.5x=21.3(360)4.2x-0.2x=88(361)4x÷16=0.6(362)29x+29×0.6=34.8(363)x+7.5=16.5(364)2(2x-48)=68(365)19x+17x+48=264(366)30x÷15=6(367)(x+14)÷34=1(368)6x+2x=72(369)15x-6x=36(370)18x-16x=10(371)5x+3x=256(372)11(3.7x-8)=34.1(373)5.3x-1.5=14.4(374)4.8x÷6=3.2(375)2x÷9=2(376)x-4.9=4.4(377)(8.3x-9)÷2=12.1(378)(8.8x+2.4)÷4=9.4(379)0.2x÷24=0.6(380)3(0.7x-3)=43.5(381)2x÷3=1.8(382)4x+42×0.3=15.4(383)6.3x-5.1x-3.2=5.2(384)0.9x=4.5(385)6x÷30=5(386)8x=136(387)15x+5x=40(388)2x+32×2=136(389)10.5÷x=0.3(390)8x+35x+1.1=82.8(391)7.5-0.3x=2.1(392)7(x+4)=63(393)11x+13x-13=203(394)8.4x+5.2x+3=125.4(395)(6.1x-6.7)÷19=3.5(396)1.9x+3.7x=117.6(397)x+7.4=11.1(398)4.7-7x=1.9(399)6.4x+5.2x=46.4(400)(6x-9)÷9=9(401)2(5.7x-5.9)=45.2(402)8x+3x-6=148(403)4x-10×0.9=2.6(404)6.4x-2x=48.4(405)4x-32=76(406)4x-4=13.2(407)7.5+x=9.3(408)7x-4.9x-3.2=5.2(409)33x-5x-2=14.8(410)19x+24x+1=87(411)66x+38=236(412)86-x=18(413)4(22x-28)=64(414)2.9x+2.7x+1.2=34.8(415)20x=180(416)8.3+3x=10.1(417)12x-2x+33=143(418)15(2x-9)=165(419)2.7x+0.6x+0.8=99.8(420)(9x+12)÷31=3(421)8x-24×0.5=2.4(422)55+25x=255(423)10x-31=109(424)2.7x=8.1(425)25x+59×2=218(426)1.5x-1.1×5=2(427)5(0.2x+3.6)=44(428)15x-8x+41=104(429)2.2+11x=19.8(430)70-24x=22(431)x÷12=11(432)3(2.8x+3.2)=34.8(433)66x=13.2(434)0.8x=3.2(435)11.2÷x=0.7(436)6.9-x=2(437)19x-4x-37=98(438)38x-1=14.2(439)9.1x=18.2(440)2x-2.6=12.6(441)17x+6x+10=125(442)59x+1.4=13.2(443)45x+56=146(444)(7.8x-8.7)÷23=0.3(445)2x+37=181(446)x+5.7=10.2(447)6.7-x=3.9(448)x+51=120(449)3x-21×5=78(450)3x+8x-19=245(451)13.9-0.2x=11.9(452)(10x-28)÷22=6(453)62x-44x-4.9=14.9(454)3x-0.3×20=3(455)7.8+x=12.8(456)0.7x-1.1×9=7.6(457)9x+21=174(458)53x-28x+2.3=24.8(459)9.9x+2.7x-3.7=71.9(460)83-x=38(461)45x=18(462)30x-10x-3=27(463)17.7+4x=29.7(464)x-48=13(465)1.2x-5.5=13.7(466)34+x=127(467)8.1x+6x-0.5=126.4(468)3.8+x=8.2(469)30+x=81(470)16+35x=26.5(471)79+x=137(472)46x=92(473)65x-49=81(474)67+x=142(475)3x+4.3x-4.8=53.6(476)9.3-0.2x=7.3(477)50x+23x-3.8=127.6(478)1x-0.5x=26.5(479)4(0.3x+1)=40(480)12.9-1.2x=3.3(481)x÷58=0.2(482)12.6÷x=1.4(483)6.4+x=8.9(484)17x-4x+2=145(485)42x+41x-3.3=63.1(486)2.4x+0.2×34=23.6(487)19x-10x+3.7=36.1(488)3x+7×0.4=4.3(489)x+1.8=11.4(490)1.3x-1.8×8=1.2(491)5.4x+2.4=18.6(492)116-3x=101(493)x÷5=2.7(494)15x+2x=136(495)93x-54x+3.5=26.9(496)2.3x+1.1x=108.8(497)1.7x-0.4x+2.5=48(498)86x-15x-3.5=60.4(499)164+12x=224(500)52+x=132(501)28x+14x-3=135.6(502)12x+2=15.2(503)13x+6x+0.8=42.6(504)2(0.9x-4.4)=36.2(505)0.2x÷5=1.6(506)(13x+44)÷32=3(507)8x+89x-2.9=103.8(508)1x+2.9=12.9(509)11x-3x-38=98(510)91x-45x-3=33.8(511)(8.5x+8.6)÷2=29.8(512)91x+55x+2.3=104.5(513)69x+55x-1.5=110.1(514)13.6÷x=3.4(515)3x+28×0.4=14.8(516)3(3x+46)=192(517)182÷x=14(518)5(x+21)=145(519)x÷32=0.2(520)16.6-0.2x=16.2(521)(8.6x+6.2)÷12=4.1(522)1.7x-1.3=3.8(523)x÷25=0.3(524)1.5x-0.9×13=1.8(525)5.7÷x=0.3(526)57x-21x+3.2=64.4(527)9.9-x=8.2(528)9x+4.2=23.1(529)20(x+0.5)=50(530)2x÷8=1(531)17x+2.4=5.8(532)87+x=98(533)13x-2×43=18(534)8x-7×13=61(535)5x+0.5x+1.7=40.2(536)22(0.3x-3.8)=22(537)2.6x+2.9x-2.6=118.4(538)17.6÷x=1.1(539)7.9x-5.1x=30.8(540)43-x=20参考答案(1)x=2(2)x=44(3)x=13(4)x=1.3(5)x=12(6)x=11(7)x=10(8)x=91(9)x=1.7(10)x=0.3(11)x=58(12)x=6.6(13)x=2(14)x=15(15)x=10(16)x=12(17)x=2(18)x=4.8(19)x=1.8(20)x=99(21)x=2.8(22)x=0.2(23)x=65(24)x=0.7(25)x=15(26)x=17(27)x=0.5(28)x=1.8(29)x=5.8(30)x=1.8(31)x=1.5(32)x=1.4(33)x=1.1(34)x=18(35)x=11(36)x=10(37)x=13(38)x=34(39)x=18(40)x=6(41)x=4(42)x=22(43)x=2(44)x=28(45)x=0.7(46)x=7.8(47)x=1.1(48)x=9.3(49)x=30(50)x=2(51)x=1.9(52)x=0.3(53)x=53(54)x=8(55)x=17(56)x=4(57)x=8(58)x=7(59)x=11(60)x=5(61)x=1.1(62)x=10(63)x=4(64)x=4(65)x=3(66)x=3.8(67)x=12(68)x=15(69)x=8(70)x=5(71)x=0.2(72)x=8(73)x=1.6(74)x=27(75)x=10(76)x=1(77)x=4(78)x=1.3(79)x=2(80)x=1.7(81)x=8(82)x=30(83)x=74(84)x=17(85)x=8(86)x=17(87)x=2(88)x=8.9(89)x=6(90)x=11(91)x=3(92)x=20(93)x=17(94)x=0.4(95)x=79(96)x=3(97)x=3(98)x=28(99)x=3(100)x=4(101)x=6.8(102)x=11(103)x=5(104)x=4(105)x=7(106)x=6(107)x=2(108)x=33(109)x=37(110)x=15(111)x=0.4(112)x=28(113)x=0.9(114)x=34(115)x=20(116)x=7(117)x=27(118)x=1.1(119)x=2(120)x=5.5(121)x=4(122)x=1.2(123)x=5(124)x=13(125)x=24(126)x=2(127)x=5(128)x=0.9(129)x=7.7(130)x=70(131)x=99(132)x=38(133)x=70(134)x=4(135)x=11(136)x=4(137)x=87(138)x=6.7(139)x=2.5(140)x=0.5(141)x=17(142)x=22(143)x=2(144)x=2.5(145)x=95(146)x=1.3(147)x=117(148)x=3.5(149)x=5(150)x=0.2(151)x=6(152)x=2(153)x=81(154)x=3(155)x=18(156)x=20(157)x=14(158)x=13(159)x=85(160)x=2.5(161)x=30(162)x=16(163)x=11(164)x=0.6(165)x=13(166)x=5(167)x=8(168)x=17(169)x=2.2(170)x=6.7(171)x=30(172)x=55(173)x=9(174)x=11(175)x=29(176)x=9(177)x=0.5(178)x=12(179)x=0.4(180)x=63(181)x=19(182)x=35(183)x=24(184)x=57(185)x=13(186)x=4(187)x=2(188)x=0.2(189)x=9.5(190)x=0.5(191)x=8(192)x=59(193)x=2.5(194)x=145(195)x=3.6(196)x=2(197)x=26(198)x=5(199)x=3.9(200)x=11(201)x=9(202)x=4(203)x=6(204)x=27(205)x=2(206)x=11(207)x=13(208)x=5(209)x=15(210)x=20(211)x=0.3(212)x=58(213)x=8(214)x=5(215)x=3(216)x=11(217)x=46(218)x=47(219)x=78(220)x=12(221)x=15(222)x=0.7(223)x=26(224)x=0.4(225)x=17(226)x=1.9(227)x=12(228)x=2(229)x=10(230)x=4(231)x=10(232)x=11(233)x=8(234)x=20(235)x=3(236)x=15(237)x=3(238)x=16(239)x=9(240)x=5(241)x=95(242)x=11(243)x=10(244)x=48(245)x=2.6(246)x=1.2(247)x=45(248)x=15(249)x=31(250)x=3(251)x=2(252)x=18(253)x=9(254)x=3(255)x=56(256)x=4.5(257)x=0.2(258)x=2(259)x=17(260)x=0.5(261)x=2(262)x=52(263)x=4(264)x=13(265)x=52(266)x=0.2(267)x=4(268)x=5(269)x=5(270)x=80(271)x=0.5(272)x=6(273)x=2(274)x=5(275)x=5(276)x=9(277)x=0.3(278)x=3(279)x=8(280)x=2(281)x=0.9(282)x=2.2(283)x=33(284)x=10.8(285)x=12(286)x=9(287)x=6(288)x=9(289)x=35(290)x=16(291)x=2(292)x=4(293)x=32(294)x=0.5(295)x=19(296)x=26(297)x=11(298)x=6(299)x=14(300)x=3(301)x=7(302)x=2(303)x=11(304)x=6(305)x=24(306)x=0.6(307)x=42(308)x=0.5(309)x=4.9(310)x=1.9(311)x=11(312)x=27(313)x=21(314)x=16(315)x=15(316)x=8.4(317)x=4(318)x=0.6(319)x=27(320)x=4.1(321)x=12(322)x=1.4(323)x=6(324)x=13(325)x=8.1(326)x=5(327)x=45(328)x=2(329)x=17(330)x=6(331)x=1.6(332)x=24(333)x=5(334)x=24(335)x=30(336)x=24(337)x=48(338)x=10(339)x=52(340)x=1.9(341)x=3(342)x=4(343)x=8.3(344)x=7.7(345)x=2(346)x=25(347)x=4(348)x=25(349)x=25(350)x=50(351)x=6(352)x=16(353)x=2(354)x=3.3(355)x=4(356)x=6(357)x=0.8(358)x=29(359)x=7(360)x=22(361)x=2.4(362)x=0.6(363)x=9(364)x=41(365)x=6(366)x=3(367)x=20(368)x=9(369)x=4(370)x=5(371)x=32(372)x=3(373)x=3(374)x=4(375)x=9(376)x=9.3(377)x=4(378)x=4(379)x=72(380)x=25(381)x=2.7(382)x=0.7(383)x=7(384)x=5(385)x=25(386)x=17(387)x=2(388)x=36(389)x=35(390)x=1.9(391)x=18(392)x=5(393)x=9(394)x=9(395