五年級數(shù)學(xué)(方程)專項(xiàng)練習(xí)題及答案匯編

五年級數(shù)學(xué)(方程)專項(xiàng)練習(xí)題及答案匯編(1)79-x=71(2)x-3.6=5.4(3)41+69x=179(4)3(0.7x+5.8)=38.4(5)0.3x-0.4×5=12.4(6)12x+2x=84(7)14.3-2.5x=6.8(8)27x+15=177(9)x+65=123(10)x-5.4=3.4(11)120-11x=32(12)18.2-13x=3.9(13)5+2.5x=20(14)1.2÷x=0.6(15)6.4+2x=20.2(16)12+4x=27.6(17)39-x=24(18)93x-13x+3.8=27.8(19)8.7x+1.1x+3.3=71.9(20)53-x=33(21)10x+7×2.6=23.2(22)(11x-39)÷26=4(23)9.8+x=17.1(24)(10x-45)÷35=7(25)4(x+20)=152(26)2.7x-5.7=5.1(27)55x+47x+1.4=83(28)19.5-7.1x=5.3(29)5x÷15=0.7(30)76÷x=2(31)x÷28=0.6(32)7(0.2x+1.5)=41.3(33)4x-10×0.8=9.2(34)132-4x=120(35)3.4x+8.4x-3.9=114.1(36)0.4x+1.1=15.1(37)4x=20(38)2x+2.8=13.4(39)5x÷3=45(40)4(1.1x-8.7)=35.6(41)9x-7x-8=34(42)4(0.2x+3.6)=34.4(43)4.6x=13.8(44)14x+34×0.3=21.4(45)0.4x÷94=0.2(46)2(0.3x+1.4)=16.6(47)(4x+6.5)÷5=15.7(48)18.3-0.2x=13.7(49)1.6x+2.4x+2.7=50.7(50)0.8x+4.3=6.7(51)2(12x+38)=172(52)1.2x+6.9x+4.1=77(53)(3x+5)÷38=1(54)12x+5x=170(55)72+x=74(56)56÷x=7(57)x-13=61(58)26x=156(59)6x+16x+4=224(60)2x+2.6=7.8(61)0.3x=2.7(62)12+0.4x=26.8(63)8.3-0.2x=3.1(64)8.1x-6.7x-2.1=10.5(65)2(3x-49)=28(66)13x-5x+15=135(67)18x-3x-38=37(68)0.5x+2.4×3=11.2(69)9x-6x=42(70)7-x=2.3(71)16x-6x-29=91(72)0.2x+1.4x-4=80.8(73)50x÷25=8(74)70x-20x+4.5=14.5(75)0.3x=3.9(76)6x+19x+27=77(77)(9.5x-8.3)÷4=19.3(78)18x-11x=70(79)28x-24=116(80)7.1x-3.4x=7.4(81)1.9x+0.8x+4.8=75(82)13x+72x-0.3=67.7(83)7.1x-6.8x-1=1.4(84)2x+4.1=18.3(85)1.2x+1×17=23(86)60x÷40=0.3(87)x÷23=4(88)x+5.4=6.2(89)14x-8x+18=96(90)(6.3x-0.7)÷28=1.1(91)5x-8×1.2=9.9(92)0.2x=16(93)61-5x=11(94)6x÷12=4(95)x÷6=2.3(96)x-4.2=3.2(97)4.7+6x=6.5(98)12+34x=80(99)9(0.4x-8)=18(100)16x-4×22=24(101)23x+2x+2.5=62.5(102)75x-9x-1.3=18.5(103)4+x=44(104)15x-35×3=45(105)13x+98x-0.6=110.4(106)13x+8x-23=292(107)0.6x+5.8x=83.2(108)99x+94x+1=136.1(109)0.8x÷4=3.4(110)2(0.7x-2.1)=37.8(111)(18x+42)÷3=98(112)(10x+10)÷6=40(113)x-3.4=6.4(114)8x+10x+9=63(115)89x+3x-1=81.8(116)9x+5.6=23.6(117)1.6x+0.8x+3.9=109.5(118)71x+91x+3.5=116.9(119)1.3x-0.7x-3=7.8(120)2x+4.9=18.5(121)7(0.3x+1.6)=32.2(122)2.2x+3.4x=95.2(123)2(16x-14)=132(124)2.1x+3.7x-0.9=144.1(125)17x+14x-1.7=113(126)(11x-9)÷24=1(127)33x÷18=1.1(128)(4.1x-4)÷31=0.4(129)18÷x=9(130)(6x+8)÷8=16(131)1.1x+2x=151.9(132)11x-15×3=54(133)3(0.5x-0.5)=10.5(134)102÷x=17(135)87x-17x-0.4=34.6(136)12.6+0.4x=14.2(137)(2.6x-5.1)÷15=0.7(138)2.1+x=10.1(139)42x+13×0.6=20.4(140)(2.8x+4.5)÷3=4.3(141)4.2x+3x+2.4=24(142)9x-6×2=33(143)29x+38=154(144)14.4-4x=6.4(145)9(x+13)=180(146)48x-17x-4.8=41.7(147)0.4x-2.4=3.2(148)17x-4.4=5.8(149)(9x-12)÷22=6(150)2.2x+3.3x=38.5(151)8.8x-6.2x-2.3=2.9(152)x÷41=0.3(153)0.5x-1.4×2=14.7(154)19.3-4.8x=9.7(155)4(1.1x+2.4)=49.2(156)6.8x-1.6x=36.4(157)8.1÷x=2.7(158)0.7x+4.9×2=29.4(159)0.9x-2.3=15.7(160)4x-2.1x-2.1=9.3(161)3.2x-5.9=3.7(162)(2x+8.2)÷22=1.1(163)85+42x=169(164)0.4x+2.1=11.7(165)15.6÷x=2.6(166)68+x=145(167)3(20x-15)=135(168)93+x=153(169)34x+64x-0.7=77.7(170)2x-19=165(171)0.3x÷6=2.8(172)1.5x-1.1x+1.6=14.8(173)1.2x+0.4×6=15.6(174)20x+82×2=264(175)9.8x+7.6x=174(176)86+11x=251(177)7x÷35=0.4(178)x-1.2=5.5(179)x+94=183(180)12x-6x+34=46(181)80x-59x-2=21.1(182)3.6x+2.1x-0.6=136.2(183)176-10x=156(184)3x+8x+15=213(185)1.5x-1.6×5=5.5(186)x-35=33(187)2(1.5x+4.8)=18.6(188)(2.2x-2.8)÷2=10.7(189)(5.3x+0.3)÷3=26.6(190)x+66=159(191)5x+53=113(192)12.2+3x=29.3(193)0.2x+5.8=15.4(194)(3.6x+5.4)÷18=2.9(195)21x÷3=28(196)5-x=1.4(197)17x-13x-7=17(198)4x+3x-44=138(199)(7.3x-6.1)÷19=1.6(200)7.3-x=4.7(201)0.3x-1×2=8.5(202)2(0.2x+7.8)=16.8(203)6.1+0.7x=15.2(204)3x-4×2=157(205)9x-7x+1.6=13.6(206)(7.3x+9.3)÷5=15(207)3x+8x=66(208)3x÷24=0.4(209)1x-2.7=8.3(210)x÷4=39(211)9.4x-0.4x+1.1=91.1(212)5x-4×3.7=5.2(213)13(6.1x-9.4)=36.4(214)12x+5.4=11.4(215)36x-31x-1.7=5.8(216)2x=18(217)4x-2x+2.5=7.9(218)3x+2x=80(219)17x-30=123(220)11x÷66=2(221)5.1+5x=9.1(222)4.6+x=8.2(223)179-2x=115(224)x÷3=20(225)3.2x=12.8(226)30x-5.4=9.6(227)2x+4x=72(228)32x÷16=1.2(229)4.8+x=12.4(230)99÷x=11(231)50+x=81(232)4(x+21)=128(233)28x-3.8=7.4(234)4(0.7x-3.3)=20.4(235)6x+25×0.3=14.1(236)17.7÷x=0.3(237)77+x=136(238)1.9+99x=21.7(239)0.5x-4.3=14.2(240)17.2-4x=4.4(241)x÷74=2(242)2x-5.6=9(243)95-x=64(244)17.7+0.3x=34.5(245)84÷x=21(246)6x+89×2=202(247)87x-17=157(248)(3.4x+1)÷15=1.2(249)x-28=11(250)53x+96x+1.1=135.2(251)x+33=94(252)47x+61x+3.1=78.7(253)95x+14x-1.8=96.3(254)55x-43x-4.5=17.1(255)11x-6x-18=22(256)28(x+3)=168(257)17x-12x=20(258)2x+19x+12=222(259)185-2x=49(260)4(2x+8)=152(261)6x+6.4x-1=85.8(262)7.8-x=1.5(263)1.9x+3.7x-1.8=71(264)3x-5.4=6.3(265)2.4x+9.5x=83.3(266)15x=90(267)x-14=59(268)5x-28×0.2=9.9(269)3.1x-0.7x+0.2=57.8(270)12x+4x-42=102(271)x+2.7=11.4(272)0.5x-1×6=9(273)20÷x=2(274)8x+9x-0.4=166.2(275)7.1x-0.3x+2.4=50(276)6x+5×2.5=13.7(277)28(1.1x-2)=36.4(278)(19x-17)÷2=96(279)3.5x-4=3(280)6.5x-2.1x=61.6(281)9x-11×10=52(282)9-x=8.6(283)2x-16=182(284)6x+4×28=214(285)6.4÷x=3.2(286)x+42=66(287)2.2+x=3.5(288)95x÷10=1.9(289)6.7x+5x=46.8(290)5x=3(291)8.7+1x=20.7(292)x+3.1=8.2(293)x÷22=0.3(294)12x+7x+16=206(295)28x-11x-0.8=45.1(296)97-x=21(297)150÷x=30(298)6x+4x+38=58(299)12.7-0.6x=6.1(300)29(0.4x-6.1)=43.5(301)7x+57×2=177(302)4.6x-0.6x=32(303)(4x+30)÷2=29(304)37x-17x-4.8=33.2(305)6(3x-38)=132(306)15x-13x+39=57(307)19x-4x=135(308)x-17=80(309)1.3x+0.8×3=6.3(310)0.6x÷18=0.8(311)32x=64(312)9.6+x=12.7(313)35x-3×1.6=5.7(314)7x-2x+20=35(315)(7.9x+0.7)÷4=21.9(316)2.7+x=6.3(317)4.8x+0.3×9=17.1(318)3(2x+30)=180(319)x+4.5=13.3(320)15x-2x-7=71(321)2x+66×2=206(322)7.9-2x=4.9(323)17x+6x+21=182(324)x-0.3=8.9(325)17x-8x+36=81(326)2.4x+2.5x+4.4=146.5(327)3x-52=134(328)17x+13x-45=45(329)41x+74x-1.8=101.7(330)x-6=1.3(331)5x-36=99(332)9.3x-5x+2.8=20(333)69x+3.2=17(334)3(1.5x-9.9)=46.8(335)6x+5x-8=113(336)91+x=115(337)2x=11(338)3(5x-46)=162(339)4x+51=95(340)10.3+0.4x=16.7(341)5x-42×0.2=3.6(342)9x+11×0.2=4.9(343)x÷35=0.5(344)12.1-21x=7.9(345)0.6x÷99=0.2(346)1.5x÷9=0.5(347)x÷5=10(348)x-2.7=1.3(349)x÷19=0.7(350)3x=2.7(351)19.7-1.6x=3.7(352)6x÷18=8(353)x÷57=3(354)17x=34(355)8x-6x+21=41(356)10.1+0.4x=27.7(357)85x-3.6=13.4(358)2x+40×0.5=25(359)x+67=158(360)17x-2x-29=76(361)2x+39=237(362)91-x=88(363)8.9x-5x=27.3(364)x÷49=0.3(365)17x+10x-31=104(366)0.3x=10.2(367)8x+3x=66(368)0.8x-0.9×8=11.2(369)26x-4.7=8.3(370)12x-6x-13=77(371)13x-4x=18(372)x+2.4=5.4(373)x÷14=5(374)0.7x=1.4(375)13x+37×2=269(376)4x-3x=7(377)103+6x=175(378)(x+15)÷5=6(379)x÷6=2.6(380)x÷3=32(381)x÷19=0.8(382)7x+4×47=202(383)6x÷64=3(384)8.4+80x=24.4(385)1x-0.2×24=14.2(386)4x-15×2=22(387)6x=162(388)15.4-5x=8.4(389)6.6÷x=0.2(390)2.8x÷14=1.2(391)0.3x=15(392)12x-2x+49=79(393)8x-5x=72(394)14x-7x+29=92(395)13x÷2=2.6(396)1.7x-0.7×2=5.4(397)30x-15x+3.5=44(398)(10x+10)÷16=5(399)28x=16.8(400)0.2x+4.8=6.2(401)1.1x-1.5×4=8.3(402)6.9+x=12.5(403)3x=27(404)6x+4.9=16.9(405)82-10x=12(406)4(x+25)=148(407)86-x=25(408)7-x=3.2(409)19x+13=70(410)8x+18x=104(411)(6x-8.4)÷3=13.2(412)35+5x=175(413)9x+32x+4.6=127.6(414)0.7x+8.7x=28.2(415)4(0.2x+5.1)=29.2(416)(7x-37)÷3=4(417)60x-13x+1.8=25.3(418)11.6+5x=25.6(419)6x+22×3=258(420)(17x-7)÷3=77(421)x÷34=4(422)2.5x-0.9x-1.6=57.6(423)38x-8x-1.6=67.4(424)x-54=23(425)0.7x+2.7=8.3(426)42x+2×3.4=23.6(427)44÷x=2(428)x-33=33(429)(18x+10)÷8=17(430)2x-5×0.2=1.4(431)9.1-x=7.7(432)26x+37x+4.2=117.6(433)10÷x=2.5(434)17x=15.3(435)7.5x-3.1x=44(436)1.6x-0.9x-2.5=3.1(437)7x+6x+25=181(438)x+59=108(439)(5.1x-1.3)÷20=0.7(440)2x=12.2(441)6.6x-0.7x+4.5=28.1(442)9.7-6x=3.1(443)81-x=57(444)22x=66(445)0.3x+0.6x=22.5(446)0.2x-2.9=17.1(447)5.7x+0.8x-4=54.5(448)4x-4.6=9.4(449)19x-13x+0.8=14(450)(16x+22)÷2=43(451)(17x+25)÷6=24(452)4x÷5=0.8(453)17x-4×1.4=13.1(454)40x÷32=5(455)16x÷8=20(456)5.2x-4.9x-3.2=1.9(457)6.1x+4.6=16.8(458)10x+13x-32=14(459)3x-15=102(460)x-2=66(461)76x-35x+1=9.2(462)27x-18x+1.5=13.2(463)x+3.8=12.9(464)0.3x+2.3=17.6(465)17x-19×0.2=8.1(466)6.4x=12.8(467)11x+30=74(468)x-6.9=1.5(469)9.4÷x=4.7(470)36x+4.2=22.2(471)17x+18x=245(472)27x+1.5=6.9(473)18x-12x=24(474)138+31x=231(475)81-x=79(476)4x+1.3×3=15.9(477)4x+3x-32=129(478)8.5x-0.7x-1.7=60.7(479)12.7+0.5x=13.7(480)18x-5.6=1.6(481)2.9x-2.1x+0.9=27.3(482)2x-44=130(483)7x+8x=60(484)5.6x-2.4=14.4(485)14x+9x-27=134(486)0.2x÷4=2.1(487)12x-3x-24=93(488)7.1x-1.8x=47.7(489)3.5x+4.1x-2.2=142.2(490)4(3x+41)=200(491)53+44x=229(492)6.3x+4.1x-3.4=59(493)x+53=114(494)4.1x-2.3x=12.6(495)(5x-4)÷21=1(496)8x-6x=44(497)2x-54×2=76(498)x+23=40(499)4x=40(500)3(15x-35)=120(501)19.6-0.4x=14(502)4.7x-2.7x+3.6=35.6(503)14x-6×3=24(504)9-x=2.2(505)(14x-32)÷24=8(506)x+6.8=14(507)18x=198(508)4+x=36(509)183+7x=260(510)8x+8×24=280(511)2(6x-18)=48(512)0.7x+0.7×2=2.8(513)8x=12.8(514)12.5-0.6x=4.1(515)4x+27×0.4=11.6(516)x+9.3=12.2(517)14.8÷x=3.7(518)1.5+x=9.6(519)15.3+12x=17.7(520)74x+52x+0.3=63.3(521)2.9x+2.6×6=27.2(522)x-60=14(523)6.4-16x=1.6(524)9x-4x=65(525)27x-6x+0.2=67.4(526)61x+36=219(527)82x+30x-0.7=133.7(528)153-3x=126(529)4(9x-13)=200(530)75x+19=169(531)2.7x+1.5x+4.8=51(532)x+7.2=9.4(533)12.6-19x=6.9(534)158-40x=38(535)0.5x÷2=4(536)4(x-26)=80(537)68+x=104(538)6.3-x=3.8(539)(6.6x-8.8)÷10=1.1(540)3.4x+1.1x+4=121參考答案(1)x=8(2)x=9(3)x=2(4)x=10(5)x=48(6)x=6(7)x=3(8)x=6(9)x=58(10)x=8.8(11)x=8(12)x=1.1(13)x=6(14)x=2(15)x=6.9(16)x=3.9(17)x=15(18)x=0.3(19)x=7(20)x=20(21)x=0.5(22)x=13(23)x=7.3(24)x=29(25)x=18(26)x=4(27)x=0.8(28)x=2(29)x=2.1(30)x=38(31)x=16.8(32)x=22(33)x=4.3(34)x=3(35)x=10(36)x=35(37)x=5(38)x=5.3(39)x=27(40)x=16(41)x=21(42)x=25(43)x=3(44)x=0.8(45)x=47(46)x=23(47)x=18(48)x=23(49)x=12(50)x=3(51)x=4(52)x=9(53)x=11(54)x=10(55)x=2(56)x=8(57)x=74(58)x=6(59)x=10(60)x=2.6(61)x=9(62)x=37(63)x=26(64)x=9(65)x=21(66)x=15(67)x=5(68)x=8(69)x=14(70)x=4.7(71)x=12(72)x=53(73)x=4(74)x=0.2(75)x=13(76)x=2(77)x=9(78)x=10(79)x=5(80)x=2(81)x=26(82)x=0.8(83)x=8(84)x=7.1(85)x=5(86)x=0.2(87)x=92(88)x=0.8(89)x=13(90)x=5(91)x=3.9(92)x=80(93)x=10(94)x=8(95)x=13.8(96)x=7.4(97)x=0.3(98)x=2(99)x=25(100)x=7(101)x=2.4(102)x=0.3(103)x=40(104)x=10(105)x=1(106)x=15(107)x=13(108)x=0.7(109)x=17(110)x=30(111)x=14(112)x=23(113)x=9.8(114)x=3(115)x=0.9(116)x=2(117)x=44(118)x=0.7(119)x=18(120)x=6.8(121)x=10(122)x=17(123)x=5(124)x=25(125)x=3.7(126)x=3(127)x=0.6(128)x=4(129)x=2(130)x=20(131)x=49(132)x=9(133)x=8(134)x=6(135)x=0.5(136)x=4(137)x=6(138)x=8(139)x=0.3(140)x=3(141)x=3(142)x=5(143)x=4(144)x=2(145)x=7(146)x=1.5(147)x=14(148)x=0.6(149)x=16(150)x=7(151)x=2(152)x=12.3(153)x=35(154)x=2(155)x=9(156)x=7(157)x=3(158)x=28(159)x=20(160)x=6(161)x=3(162)x=8(163)x=2(164)x=24(165)x=6(166)x=77(167)x=3(168)x=60(169)x=0.8(170)x=92(171)x=56(172)x=33(173)x=11(174)x=5(175)x=10(176)x=15(177)x=2(178)x=6.7(179)x=89(180)x=2(181)x=1.1(182)x=24(183)x=2(184)x=18(185)x=9(186)x=68(187)x=3(188)x=11(189)x=15(190)x=93(191)x=12(192)x=5.7(193)x=48(194)x=13(195)x=4(196)x=3.6(197)x=6(198)x=26(199)x=5(200)x=2.6(201)x=35(202)x=3(203)x=13(204)x=55(205)x=6(206)x=9(207)x=6(208)x=3.2(209)x=11(210)x=156(211)x=10(212)x=4(213)x=2(214)x=0.5(215)x=1.5(216)x=9(217)x=2.7(218)x=16(219)x=9(220)x=12(221)x=0.8(222)x=3.6(223)x=32(224)x=60(225)x=4(226)x=0.5(227)x=12(228)x=0.6(229)x=7.6(230)x=9(231)x=31(232)x=11(233)x=0.4(234)x=12(235)x=1.1(236)x=59(237)x=59(238)x=0.2(239)x=37(240)x=3.2(241)x=148(242)x=7.3(243)x=31(244)x=56(245)x=4(246)x=4(247)x=2(248)x=5(249)x=39(250)x=0.9(251)x=61(252)x=0.7(253)x=0.9(254)x=1.8(255)x=8(256)x=3(257)x=4(258)x=10(259)x=68(260)x=15(261)x=7(262)x=6.3(263)x=13(264)x=3.9(265)x=7(266)x=6(267)x=73(268)x=3.1(269)x=24(270)x=9(271)x=8.7(272)x=30(273)x=10(274)x=9.8(275)x=7(276)x=0.2(277)x=3(278)x=11(279)x=2(280)x=14(281)x=18(282)x=0.4(283)x=99(284)x=17(285)x=2(286)x=24(287)x=1.3(288)x=0.2(289)x=4(290)x=0.6(291)x=12(292)x=5.1(293)x=6.6(294)x=10(295)x=2.7(296)x=76(297)x=5(298)x=2(299)x=11(300)x=19(301)x=9(302)x=8(303)x=7(304)x=1.9(305)x=20(306)x=9(307)x=9(308)x=97(309)x=3(310)x=24(311)x=2(312)x=3.1(313)x=0.3(314)x=3(315)x=11(316)x=3.6(317)x=3(318)x=15(319)x=8.8(320)x=6(321)x=37(322)x=1.5(323)x=7(324)x=9.2(325)x=5(326)x=29(327)x=62(328)x=3(329)x=0.9(330)x=7.3(331)x=27(332)x=4(333)x=0.2(334)x=17(335)x=11(336)x=24(337)x=5.5(338)x=20(339)x=11(340)x=16(341)x=2.4(342)x=0.3(343)x=17.5(344)x=0.2(345)x=33(346)x=3(347)x=50(348)x=4(349)x=13.3(350)x=0.9(351)x=10(352)x=24(353)x=171(354)x=2(355)x=10(356)x=44(357)x=0.2(358)x=2.5(359)x=91(360)x=7(361)x=99(362)x=3(363)x=7(364)x=14.7(365)x=5(366)x=34(367)x=6(368)x=23(369)x=0.5(370)x=15(371)x=2(372)x=3(373)x=70(374)x=2(375)x=15(376)x=7(377)x=12(378)x=15(379)x=15.6(380)x=96(381)x=15.2(382)x=2(383)x=32(384)x=0.2(385)x=19(386)x=13(387)x=27(388)x=1.4(389)x=33(390)x=6(391)x=50(392)x=3(393)x=2