五年級數(shù)學(方程)專項練習題及答案匯編

五年級數(shù)學(方程)專項練習題及答案匯編(1)6x-4x=54(2)3.7x+0.5×2=12.1(3)7x+3x=250(4)20+x=30(5)2x=6(6)5x-7×9=107(7)14.5-2x=7.5(8)6x+10x=304(9)1.2x+4.1=10.1(10)2x-12×14=14(11)1.6+8.8x=19.2(12)24x-2×78=36(13)2x=24(14)152÷x=4(15)187÷x=17(16)29x+31x-3=111(17)1.4x+1.3x=159.3(18)16.7-1.1x=6.8(19)x+78=131(20)34÷x=17(21)5.6÷x=0.8(22)(0.4x+1.5)÷23=0.1(23)186-3x=147(24)56x-5.7=5.5(25)3x=13.2(26)2.4+0.3x=19.5(27)56x+4=20.8(28)(7x-40)÷2=29(29)3x+49×0.3=24.6(30)6.1x+3.2x-3.3=89.7(31)51x-30x+1.4=24.5(32)(1.4x-7.6)÷18=0.9(33)9.3x-2x-4.8=68.2(34)x-6.7=1.1(35)35x-27=78(36)6x-0.5x=49.5(37)x+6.3=9.2(38)17.8÷x=0.2(39)0.2x÷14=1.4(40)x÷12=2(41)10-4x=2.4(42)7.6x-5.2x=12(43)70x-13x-2.8=77(44)x÷61=2(45)7.1-x=1.6(46)76x-42x+0.2=27.4(47)4.2x÷12=0.7(48)11(x-25)=132(49)(16x+19)÷17=3(50)3x+2×70=284(51)0.7x-5.2=1.1(52)2x+40=170(53)10x-6x+28=104(54)26x=104(55)1.6x-0.3×18=13.8(56)x-50=14(57)0.4x+4.1=6.5(58)130-28x=74(59)6x-46=50(60)x+2.9=7(61)10x-2.1=2.9(62)0.8x÷16=0.3(63)2x=8(64)2(5.7x+6.4)=47(65)x+9.8=14.3(66)18x÷27=0.2(67)6x+19x-43=182(68)2.1x-1=15.8(69)1.5x+0.7×28=22.6(70)(4.7x-5.1)÷10=5.6(71)x÷20=4(72)10+x=105(73)10.2÷x=1.7(74)x-2.3=6.6(75)x+51=145(76)8.7x-4.5x+2.7=48.9(77)x+46=70(78)3.4+39x=19(79)4.8÷x=2.4(80)9.1+1.5x=24.1(81)x-3=23(82)3.3x-2.8x+0.6=8.1(83)15x-2x-4=139(84)7.3+0.4x=10.1(85)19x+2x+2=170(86)(17x-14)÷4=5(87)15x+18x=264(88)8.7-x=6.1(89)0.3x-1.6=9.5(90)113+80x=273(91)12(0.7x-2.3)=22.8(92)13x-5x=16(93)x÷23=4(94)93x-78x-2.5=11(95)11x+1=13.1(96)x÷23=0.4(97)(2.5x+6.7)÷2=12.1(98)26÷x=13(99)6.5x÷5=3.9(100)1.9-x=1.4(101)2.2x+2.1x+0.7=121.1(102)27(x+4)=162(103)14.8÷x=0.2(104)32x+87x+2.8=74.2(105)29x+65x+2.8=87.4(106)50x-1.1=8.9(107)8x-5.2x+0.4=22.8(108)7.6+x=12.6(109)10x-6×2.6=4.4(110)7x-3x-6=70(111)4(7.5x-2.5)=50(112)2x+4.8=18.8(113)3x-0.6×2=4.8(114)3.7x+7.8x-3.9=99.6(115)2x÷4=7(116)86x+45x-3.3=62.2(117)0.4x=17.6(118)168-38x=92(119)x+0.3=4(120)29x-34×0.2=10.6(121)3x÷81=0.2(122)10.2+27x=29.1(123)x-3.2=2.5(124)5.2-x=3.1(125)17x-12x+17=57(126)50x-4x-2.3=29.9(127)10x÷6=2.5(128)x÷56=0.2(129)52+x=68(130)3x=2.7(131)5x-2x=39(132)x-62=17(133)3.2+x=10.7(134)(11x+33)÷8=22(135)87x-16x+2.9=17.1(136)2(2.6x-7.6)=10.8(137)(18x-48)÷6=28(138)28x+43×0.2=28.2(139)5x+2x-11=122(140)6(0.3x-3.9)=36(141)6.5÷x=0.5(142)x-1.5=3.7(143)x-46=48(144)77-x=41(145)9x-49=41(146)x÷14=4(147)7x-2×3.9=7.6(148)14-2x=10.8(149)32x÷12=8(150)5(12x+2)=130(151)10(x+12)=160(152)16x-2x+23=149(153)16x÷14=8(154)19x-3x+32=64(155)10x-4x+3=93(156)0.5x=19.5(157)91x-7x-2.9=13.9(158)34+x=128(159)1x-0.3×28=8.6(160)x+60=99(161)0.6x=11.4(162)13+2.1x=25.6(163)144-19x=11(164)15.3-0.6x=11.7(165)18x-3.1=16.7(166)1x=3(167)3(0.6x+9.6)=43.2(168)14.4-2x=10.4(169)90x+70x+1.8=49.8(170)x+8.4=8.7(171)25x+18=118(172)47x-2x+2.2=83.2(173)1.5x=19.5(174)2.5x-0.5x=56(175)(0.6x-3.2)÷34=0.1(176)60x-22x+4.5=34.9(177)3.3x-2.3x+3.9=17.9(178)17x+7x+35=251(179)6x÷22=3(180)6÷x=2(181)75x+69x+3.7=147.7(182)x÷16=0.5(183)43x+33×0.3=18.5(184)1.7x+2.1×8=21.9(185)x-34=62(186)6.2x+5.2=17.6(187)8.2x-4.6x=21.6(188)x÷94=0.2(189)29x-3×2.4=1.5(190)9.1x-4.5x-2.7=24.9(191)0.2x+4.3=16.1(192)15x-17×2=116(193)2.8x=19.6(194)52-x=47(195)184+37x=258(196)15.1-63x=2.5(197)76x+37=189(198)5(6.1x-8.7)=17.5(199)52x+62x-3.7=121.7(200)x÷34=4(201)5.7÷x=0.3(202)(2.9x+7.7)÷21=2.3(203)38x-32x-2.2=8(204)2(5x+2.4)=24.8(205)10(16x-37)=110(206)3(0.5x+3)=18(207)0.8x+2.5=14.5(208)7x+5.9x+1.3=156.1(209)4(2x+25)=172(210)31x-3.1=6.2(211)5(x-10)=145(212)4(0.4x+4.3)=30(213)13.1+5x=29.6(214)29x+2×72=318(215)67x+60x-1.6=112.7(216)7.7x-5.5x+4.8=18(217)(3x-1)÷5=4.6(218)7-x=3.3(219)60+x=70(220)4x+1.2x-2.3=91.3(221)8÷x=2(222)13x-4x-23=31(223)4+x=11.3(224)0.8x-0.2×33=3.8(225)0.4x-2.3×2=7(226)8.2-x=6.1(227)17x-14x-12=12(228)23x+50=165(229)5(5x-26)=170(230)6x+2x-6=210(231)26+5x=186(232)4.8x+7.6x=161.2(233)0.3x+1.5=3.6(234)4.4x-4.2x+4.7=6.5(235)32x-11x-0.2=20.8(236)x+5=50(237)10x+19x+24=256(238)1.6x÷80=0.2(239)2x÷14=0.7(240)0.5x+0.2×27=20.9(241)x-53=21(242)1.7x+5x+4.2=51.1(243)20x+16×3=188(244)0.7x-1.2=16.3(245)140-31x=16(246)x-0.7=5.3(247)17.6-69x=3.8(248)3.3x-2.8x-3.6=4.9(249)54x-49x+0.8=8.8(250)4x÷18=1(251)42x÷7=1.2(252)8x+6×0.9=21.4(253)11x-3x+10=82(254)14x+16x-19=41(255)8.1x-5.2=11(256)7.3x+2.6x+3.6=132.3(257)2.2x+5.7x+1.4=72.5(258)0.3x+4.8=21.3(259)117+36x=297(260)(0.4x+7.6)÷32=0.3(261)20x=18(262)26x÷2=39(263)19x-5x+3=87(264)15x-36×0.4=5.1(265)15x-8x=28(266)2(1.7x-4.4)=18.4(267)24x+42x+4=155.8(268)6(4x+21)=198(269)6x+5.9=24.5(270)9x+5x-47=65(271)x÷15=13(272)62x=12.4(273)(7.9x+2.7)÷3=32.5(274)72+6x=222(275)4x=28(276)5x-42×0.4=1.2(277)8.4x+9.1x=52.5(278)(5x+38)÷41=3(279)x+23=60(280)0.3x+1.1x=120.4(281)6-x=5.2(282)24x-30×0.5=1.8(283)1.8x-0.5×2=4.4(284)49x÷14=14(285)12.1+15x=28.6(286)19x+23×0.6=25.2(287)3.5x+2x+1.3=100.3(288)5x-2×1.8=16.4(289)4x-4×1.1=8(290)2(x+13)=108(291)3(2x+36)=180(292)(16x-40)÷24=7(293)6x-28=128(294)2(2x-44)=72(295)8(0.2x+1.3)=31.2(296)16.6-0.8x=14.2(297)9.4+x=16.4(298)37x=74(299)(10x-37)÷43=1(300)(2.4x-1.2)÷6=5.8(301)0.4x+4.2x-1.8=90.2(302)8.8+x=10.4(303)3x+5.8=23.8(304)160+2x=180(305)156-25x=106(306)2.6x+3.1x=102.6(307)14x+10x-15=129(308)2(1.7x-1.1)=8(309)29x-2×4=137(310)15.1-4.9x=5.3(311)39x+15x+1.5=44.7(312)3x-2.4x-4.3=14.9(313)4x+16x-26=194(314)3.4x-2x-3.1=12.3(315)(1.7x-3.3)÷37=0.6(316)1.4x=15.4(317)x+45=115(318)81+30x=261(319)x-1.5=5.2(320)11x+6×31=373(321)60-x=39(322)4x-2.3=16.1(323)8.7x-2.7x=12(324)2x+50=236(325)13x+5×2.2=13.6(326)14(0.5x-1.3)=16.8(327)2(x-13)=20(328)5x+6x+32=351(329)6.3x+4.5x=162(330)x+8.1=14.1(331)19x+3=18.2(332)x+11=60(333)8x-6x+27=77(334)5(17x-12)=195(335)5x-4.4x+2.9=10.7(336)x+4=8.9(337)14x+2×6=54(338)19.8+8x=38.2(339)27x+61x-0.7=140.1(340)0.6x-3.5=4.9(341)0.5x+0.2×36=24.7(342)7x÷21=0.2(343)144÷x=8(344)21x-2×22=145(345)8x-6×13=58(346)x÷4=0.7(347)48x-3.9=5.7(348)11x=3.3(349)64-x=17(350)8x+28=204(351)69+x=74(352)(14x+24)÷6=32(353)(3x+18)÷7=6(354)x÷2=2.9(355)3x+12×1.3=30.3(356)5.6-x=2.3(357)1.5x+8.5x=90(358)2.5+x=6.2(359)6.4+18x=20.8(360)4x+5x+48=354(361)16.7-1.2x=4.7(362)20÷x=10(363)6x-4x=16(364)x+6=13.8(365)81x-70x+3.9=11.6(366)0.4x-0.2×48=4.4(367)4.9x-2.5x=33.6(368)11x+10x=336(369)75-x=18(370)36+10x=226(371)85-x=31(372)2.8x-2.4x=2.4(373)x÷22=0.2(374)6.7x+2.4x-4.5=13.7(375)16x+19x=210(376)7x+3x=230(377)x-4.5=2.3(378)0.9x+5x-2.1=86.4(379)5.6x+5.5x=44.4(380)53x-28=131(381)x-1.1=3.6(382)0.4x÷18=0.8(383)5.7+x=7.1(384)(9.3x+8.7)÷21=1.3(385)4x=17.6(386)11x+15=147(387)15+0.5x=35(388)2.3x+1.3=17.4(389)x+24=35(390)4(1.2x+1.8)=31.2(391)18.9-0.2x=11.3(392)12.2+10x=25.2(393)(6x-20)÷2=32(394)(19x-43)÷3=30(395)92x-83x+0.3=3.9(396)76x+97x+1.7=53.6(397)1.3x-5.7=11.2(398)8.8+0.9x=16(399)5.4+x=11(400)x÷9=21(401)75+x=132(402)2x+10x-40=44(403)0.3x+0.3×48=26.1(404)(10x+2)÷9=18(405)2(16x+43)=150(406)(0.8x-6.6)÷10=0.7(407)x-29=17(408)(2.1x+0.4)÷16=1.6(409)15x-2x-28=63(410)18x+5=15.8(411)12x+2x+4.3=114.9(412)4.6x+1.5x-1=23.4(413)(2x-24)÷15=2(414)7x+5.3=22.8(415)(8x+14)÷37=6(416)(3.1x+6.9)÷2=11.2(417)40-x=36(418)2x-0.9x-2.8=18.1(419)7.3+x=12.8(420)7x+5x+29=65(421)168-11x=69(422)4.3x÷86=0.2(423)2.9x+3.9x=27.2(424)9x+2x-7=81(425)28x÷14=8(426)x+0.6=2.4(427)0.2x+0.6×16=14.6(428)16x-12x=24(429)12x-3x=72(430)3.6x=18(431)7x-11=38(432)38x-47=67(433)2x÷24=4(434)72x-8x-3.2=16(435)1.7x-1.2x-3.4=15.1(436)9x-29×2=131(437)16x-12x-3=13(438)9x-2x-3=18(439)34x+5.5=12.3(440)3x-9×8=96(441)50+x=146(442)176÷x=11(443)6.1x-1.7x+2.5=28.9(444)12-0.3x=2.1(445)5.4x+9.7x-4.8=25.4(446)16.3-0.4x=3.1(447)13x÷4=3.9(448)12x-2x-22=138(449)6.5-0.5x=2(450)113-4x=45(451)15(3x-47)=195(452)0.9x+6.7x+3=79(453)1.4x-0.8×6=6.4(454)39x+3.5=23(455)5x+8×1.9=18.7(456)6x+8x+20=146(457)4(3.2x+2.1)=46.8(458)x÷44=0.3(459)(9x-13)÷41=1(460)x÷2=3.7(461)8.6-5x=2.6(462)48x-7x-4.5=16(463)22x=88(464)(4x+48)÷12=10(465)4x+24×7=264(466)3x=177(467)0.6x+6.7x+1.2=103.4(468)7.7-3x=2.6(469)11x+4x=105(470)83+x=132(471)67x+11x-4.5=34.5(472)1.5x+3.2×5=20.5(473)9.2+0.7x=26.7(474)3(x+7)=147(475)8-x=7.6(476)3.3x-0.3x-3.4=26.6(477)76-24x=28(478)2(3.8x+1.8)=26.4(479)2.1x÷3=4.9(480)14.4÷x=0.8(481)3x÷18=10(482)3x+52×3=228(483)4x+80x-2.8=89.6(484)9.6x+4.7x-3.9=53.3(485)7.8x-1.8x-2.3=27.7(486)15.6-48x=6(487)x-2=57(488)(7x+29)÷5=10(489)0.2x-1.2×6=1.8(490)8x-5x-21=30(491)164+40x=244(492)13.3+2x=16.5(493)x÷2=35(494)2x+6x+41=177(495)30x=9(496)78x-46x+2=14.8(497)8.9x-0.8x=72.9(498)82x+57=221(499)(7.4x-6.2)÷14=5.9(500)15x-31=74(501)15x+4x=247(502)4x+50×4=392(503)x-39=32(504)0.8x-1.7=7.9(505)x-2.7=3.5(506)79-x=37(507)11.3+18x=25.7(508)82x-3.2=13.2(509)53x-25x-1.1=21.3(510)2.1x+4.1x+2.4=83(511)3.7x-3.4x+3.8=5.6(512)(2.3x-6.4)÷2=6(513)6x+9x+3=63(514)13.7+0.6x=30.5(515)3.7x-3.9=10.9(516)14x+2×80=328(517)12x-3x=144(518)31x=6.2(519)11x=143(520)17x+52x+3.8=93.5(521)6.8x-6.2x=8.4(522)5x-1.1=17.9(523)65x+89x-4.3=134.3(524)66x÷12=1.1(525)56x+27x-2.3=72.4(526)2.2x÷10=1.1(527)66x+46=244(528)4.9x+0.7×16=30.8(529)10x-3x=84(530)24x+18×0.5=25.8(531)8x-4x+3=95(532)22x=110(533)0.3x=15(534)13x+14x=108(535)27(0.3x-8.4)=40.5(536)46-x=31(537)(4.8x+3.5)÷31=2.9(538)2x-30=104(539)10(2x-37)=130(540)19.5÷x=1.3參考答案(1)x=27(2)x=3(3)x=25(4)x=10(5)x=3(6)x=34(7)x=3.5(8)x=19(9)x=5(10)x=91(11)x=2(12)x=8(13)x=12(14)x=38(15)x=11(16)x=1.9(17)x=59(18)x=9(19)x=53(20)x=2(21)x=7(22)x=2(23)x=13(24)x=0.2(25)x=4.4(26)x=57(27)x=0.3(28)x=14(29)x=3.3(30)x=10(31)x=1.1(32)x=17(33)x=10(34)x=7.8(35)x=3(36)x=9(37)x=2.9(38)x=89(39)x=98(40)x=24(41)x=1.9(42)x=5(43)x=1.4(44)x=122(45)x=5.5(46)x=0.8(47)x=2(48)x=37(49)x=2(50)x=48(51)x=9(52)x=65(53)x=19(54)x=4(55)x=12(56)x=64(57)x=6(58)x=2(59)x=16(60)x=4.1(61)x=0.5(62)x=6(63)x=4(64)x=3(65)x=4.5(66)x=0.3(67)x=9(68)x=8(69)x=2(70)x=13(71)x=80(72)x=95(73)x=6(74)x=8.9(75)x=94(76)x=11(77)x=24(78)x=0.4(79)x=2(80)x=10(81)x=26(82)x=15(83)x=11(84)x=7(85)x=8(86)x=2(87)x=8(88)x=2.6(89)x=37(90)x=2(91)x=6(92)x=2(93)x=92(94)x=0.9(95)x=1.1(96)x=9.2(97)x=7(98)x=2(99)x=3(100)x=0.5(101)x=28(102)x=2(103)x=74(104)x=0.6(105)x=0.9(106)x=0.2(107)x=8(108)x=5(109)x=2(110)x=19(111)x=2(112)x=7(113)x=2(114)x=9(115)x=14(116)x=0.5(117)x=44(118)x=2(119)x=3.7(120)x=0.6(121)x=5.4(122)x=0.7(123)x=5.7(124)x=2.1(125)x=8(126)x=0.7(127)x=1.5(128)x=11.2(129)x=16(130)x=0.9(131)x=13(132)x=79(133)x=7.5(134)x=13(135)x=0.2(136)x=5(137)x=12(138)x=0.7(139)x=19(140)x=33(141)x=13(142)x=5.2(143)x=94(144)x=36(145)x=10(146)x=56(147)x=2.2(148)x=1.6(149)x=3(150)x=2(151)x=4(152)x=9(153)x=7(154)x=2(155)x=15(156)x=39(157)x=0.2(158)x=94(159)x=17(160)x=39(161)x=19(162)x=6(163)x=7(164)x=6(165)x=1.1(166)x=3(167)x=8(168)x=2(169)x=0.3(170)x=0.3(171)x=4(172)x=1.8(173)x=13(174)x=28(175)x=11(176)x=0.8(177)x=14(178)x=9(179)x=11(180)x=3(181)x=1(182)x=8(183)x=0.2(184)x=3(185)x=96(186)x=2(187)x=6(188)x=18.8(189)x=0.3(190)x=6(191)x=59(192)x=10(193)x=7(194)x=5(195)x=2(196)x=0.2(197)x=2(198)x=2(199)x=1.1(200)x=136(201)x=19(202)x=14(203)x=1.7(204)x=2(205)x=3(206)x=6(207)x=15(208)x=12(209)x=9(210)x=0.3(211)x=39(212)x=8(213)x=3.3(214)x=6(215)x=0.9(216)x=6(217)x=8(218)x=3.7(219)x=10(220)x=18(221)x=4(222)x=6(223)x=7.3(224)x=13(225)x=29(226)x=2.1(227)x=8(228)x=5(229)x=12(230)x=27(231)x=32(232)x=13(233)x=7(234)x=9(235)x=1(236)x=45(237)x=8(238)x=10(239)x=4.9(240)x=31(241)x=74(242)x=7(243)x=7(244)x=25(245)x=4(246)x=6(247)x=0.2(248)x=17(249)x=1.6(250)x=4.5(251)x=0.2(252)x=2(253)x=9(254)x=2(255)x=2(256)x=13(257)x=9(258)x=55(259)x=5(260)x=5(261)x=0.9(262)x=3(263)x=6(264)x=1.3(265)x=4(266)x=8(267)x=2.3(268)x=3(269)x=3.1(270)x=8(271)x=195(272)x=0.2(273)x=12(274)x=25(275)x=7(276)x=3.6(277)x=3(278)x=17(279)x=37(280)x=86(281)x=0.8(282)x=0.7(283)x=3(284)x=4(285)x=1.1(286)x=0.6(287)x=18(288)x=4(289)x=3.1(290)x=41(291)x=12(292)x=13(293)x=26(294)x=40(295)x=13(296)x=3(297)x=7(298)x=2(299)x=8(300)x=15(301)x=20(302)x=1.6(303)x=6(304)x=10(305)x=2(306)x=18(307)x=6(308)x=3(309)x=5(310)x=2(311)x=0.8(312)x=32(313)x=11(314)x=11(315)x=15(316)x=11(317)x=70(318)x=6(319)x=6.7(320)x=17(321)x=21(322)x=4.6(323)x=2(324)x=93(325)x=0.2(326)x=5(327)x=23(328)x=29(329)x=15(330)x=6(331)x=0.8(332)x=49(333)x=25(334)x=3(335)x=13(336)x=4.9(337)x=3(338)x=2.3(339)x=1.6(340)x=14(341)x=35(342)x=0.6(343)x=18(344)x=9(345)x=17(346)x=2.8(347)x=0.2(348)x=0.3(349)x=47(350)x=22(351)x=5(352)x=12(353)x=8(354)x=5.8(355)x=4.9(356)x=3.3(357)x=9(358)x=3.7(359)x=0.8(360)x=34(361)x=10(362)x=2(363)x=8(364)x=7.8(365)x=0.7(366)x=35(367)x=14(368)x=16(369)x=57(370)x=19(371)x=54(372)x=6(373)x=4.4(374)x=2(375)x=6(376)x=23(377)x=6.8(378)x=15(379)x=4(380)x=3(381)x=4.7(382)x=36(383)x=1.4(384)x=2(385)x=4.4(386)x=12(387)x=40(388)x=7(389)x=11(390)x=5(391)x=38(392)x=1.3(393)x=