五年級數(shù)學(xué)(方程)專項練習(xí)題及答案匯編

五年級數(shù)學(xué)(方程)專項練習(xí)題及答案匯編(1)23x-54=38(2)(5x+3)÷2=29(3)12x÷24=2(4)x÷2=42(5)3.7+x=4.1(6)2x=17.4(7)19.4÷x=0.2(8)18x÷9=0.6(9)74-x=18(10)(6.4x+5.6)÷29=2.4(11)10.6+4x=16.6(12)7+x=11.1(13)2.6x+0.5×38=24.2(14)6.6x=13.2(15)1.6x+5.4=16.6(16)160÷x=40(17)152÷x=4(18)4.2x-3.1x+0.7=12.8(19)1.9x-0.8×7=7.7(20)10x+3.7=9.7(21)2(9.9x+2)=43.6(22)8.9-x=7.4(23)8.4+x=10.2(24)63x-19x+0.2=61.8(25)9.9x+9.2x=152.8(26)5x+11x-40=120(27)x÷5=1.5(28)15x-8x+33=54(29)20(0.5x+1.1)=42(30)6.2-x=1.6(31)13-6x=1(32)6(0.6x+6.7)=47.4(33)61x-28x+1.6=41.2(34)90x÷9=20(35)x-3.6=1.6(36)5x-4.3=5.7(37)9.2+3.1x=27.8(38)19x-2x=102(39)16x+63×2=158(40)15x÷9=20(41)4.4+x=13.7(42)18-2x=2(43)4x÷20=0.8(44)12x+5x+6=108(45)(8.7x+1.5)÷21=0.9(46)39x-20x+0.3=36.4(47)5.4x-0.6x=48(48)60+x=79(49)13x-15=50(50)4x+5.3x-1.5=45(51)6x-3.9x-1=24.2(52)6(2.2x-3.3)=19.8(53)6x-3.8=4.6(54)99-x=40(55)6.8+25x=26.8(56)31x+4×1.6=21.9(57)158-51x=56(58)4x+19=187(59)2(21x-32)=146(60)4(1.5x-9)=18(61)(6.1x-6)÷35=0.7(62)1.2x=19.2(63)10.8-0.7x=8.7(64)198-3x=99(65)17x+2.5=11(66)x-7=33(67)x+15=50(68)19x-7x+35=95(69)12.5-5x=10.5(70)61x-37x+2.5=9.7(71)3x+24×0.4=23.4(72)19.3+0.2x=23.9(73)x+5.5=8.1(74)5.8x÷87=0.2(75)141÷x=47(76)4x-2.7=6.1(77)(3.3x+9.9)÷2=33(78)8.3x-3.8x-4.7=35.8(79)3(1.5x+9.8)=47.4(80)0.9x+4.9=22(81)9x+3×21=198(82)(4x-35)÷3=15(83)x-70=12(84)39x-26x-3.6=8.1(85)9x+11x+48=348(86)4.5x+3.3×6=37.8(87)4(0.2x+1.7)=14.8(88)x+87=105(89)x+90=174(90)x÷5=19(91)(3.8x+5.2)÷9=4.8(92)34x=170(93)7x+9x-1.3=134.7(94)16.2÷x=0.6(95)19.4+0.4x=32.2(96)5.8x-2.8x=6(97)7x+34=69(98)(2.8x-6)÷6=3.2(99)x+1=4(100)15x=13.5(101)0.6x-4.2=3(102)6.1x=12.2(103)2x+7×15=153(104)0.5x+4.5×2=23.5(105)3x+45×0.3=21.3(106)2x-1.8x-4.4=1.4(107)38x+39x+2.4=125.6(108)1x-1.4×4=3.4(109)16x-5x=66(110)11x-4×0.3=17.5(111)19x+50=202(112)16x+6x=176(113)33x-4×1.6=6.8(114)x+7=10.2(115)4x=10.4(116)5x+11x-30=114(117)7x+43=155(118)9x-4.4x=23(119)10x+9x-0.5=115.4(120)8.8+x=12.3(121)6.6x+2.7x+3.7=40.9(122)64÷x=32(123)93-x=58(124)16x-4x+3.2=54.8(125)2x-1.2=7.4(126)30÷x=10(127)8x+1.8=16.2(128)x÷6=2.6(129)15(4x-26)=150(130)1.6+1.6x=4.8(131)17-4x=15.8(132)(18x+23)÷17=13(133)4x÷5=1.6(134)42+x=70(135)8x-4x=40(136)5x+11×5=115(137)7x-2x-42=58(138)1.9+x=10.2(139)4x-49×0.3=1.7(140)18x-12x+41=59(141)29x=174(142)1.9x-0.4x+3.8=56.3(143)6x+4.2x+4.9=66.1(144)30-x=13(145)51x=15.3(146)13.2+1x=32.2(147)14.6-3.6x=3.8(148)28+x=30(149)(0.2x+5.9)÷5=1.5(150)3.3x+0.6×2=21(151)(10x-40)÷5=4(152)1.3x-0.5x=45.6(153)2.8x-0.2x-2.4=41.8(154)52-x=17(155)5x-35×0.3=1.5(156)x+7.2=7.5(157)18x+16x-21=115(158)x-3.1=2.2(159)7.6x-6.1x-2=4(160)4.6x÷4=2.3(161)9x+93x-1.9=18.5(162)(7x-2)÷5=13.6(163)4(0.4x-2.5)=25.2(164)35x+2.9=20.4(165)7.5-x=6.7(166)2x-45=141(167)7.8x-6.8x-0.3=10.7(168)6.3-x=2.2(169)0.2x+1.5x=71.4(170)11(0.2x-2.7)=45.1(171)9x+7x+27=251(172)0.2x÷17=0.4(173)1.3x+0.8x=98.7(174)4x-4×34=20(175)3x-1.2=2.7(176)3.1x=18.6(177)16x+15x+31=372(178)18x-35=163(179)6(3x-44)=132(180)1.8÷x=0.9(181)8.7÷x=0.3(182)9x+13x=88(183)(2x+10)÷14=1(184)6.8x-3.6x=6.4(185)(19x-9)÷5=21(186)(8x-25)÷23=9(187)2x÷20=7(188)10x-12×11=68(189)3x+47=179(190)28(3.5x-5.4)=44.8(191)1.9+x=10.4(192)1.3x=19.5(193)7.7x+0.6x+2.6=60.7(194)5x-3.3x=13.6(195)(5.4x-1)÷2=21.1(196)3.1x-0.8×12=5.9(197)92x+32x+1.2=38.4(198)3x=11.4(199)17.4+1x=31.4(200)45x=90(201)x÷14=0.5(202)5.3x-4.3x-1.2=2.8(203)14x+18x+6=134(204)2x-56=16(205)9x+37=199(206)(16x-7)÷3=51(207)4x-0.2×13=5.4(208)3x-2.4x+2.5=4.3(209)6(1.1x+4)=37.2(210)2x÷6=2.5(211)5.3+x=11.2(212)(2.2x-1.7)÷7=0.7(213)15x-9x+23=59(214)7x+17x-33=63(215)3(3.4x-4.3)=38.1(216)9.3x-4.1=14.5(217)1.9+48x=16.3(218)3.5÷x=0.5(219)(2.3x+7.7)÷7=5.7(220)(3x+45)÷9=12(221)1.9x=3.8(222)x-50=45(223)14x-4x-3.6=46.4(224)10x÷20=0.8(225)2(4x+45)=122(226)x+33=116(227)47x-26=162(228)12x÷4=1.8(229)6x+30x-4.9=70.7(230)72x-12x-1.9=46.1(231)1.6x-0.2×42=7.6(232)105÷x=5(233)10(2.1x-3.5)=49(234)3x÷6=32(235)8x+14x-12=252(236)72x+32x-3=132.2(237)89x-85x+2.9=7.3(238)42x+96x-1.5=136.5(239)0.8x-0.4×3=3.6(240)x÷8=3(241)4.2+0.5x=16.2(242)(x+37)÷2=30(243)x-39=23(244)170-9x=53(245)175-3x=70(246)72-x=41(247)(0.9x+7.7)÷5=3.7(248)x-57=31(249)0.6x+2.5=18.7(250)18.9÷x=2.1(251)x-84=12(252)2x+9x=187(253)127+3x=238(254)2x-3×35=63(255)56-x=54(256)6.2-0.5x=2.2(257)x+2=10.5(258)9x-3x-21=111(259)x+0.8=1.7(260)1x+5.7=14.7(261)14÷x=0.4(262)38x+54x+4.8=23.2(263)4(0.2x-1.8)=16(264)88+x=102(265)21+x=41(266)4x+3×34=122(267)11x-9x=24(268)2(6x+3)=186(269)9x+12×1.3=26.4(270)1.3x+3.2×3=13.5(271)2.1x-1.5×6=3.6(272)(18x+12)÷6=8(273)8.4+67x=21.8(274)26x÷8=13(275)x÷17=5(276)66-3x=33(277)94x÷4=4.7(278)x-1.9=4.8(279)6.1x-5x+1.9=8.5(280)60x÷5=24(281)(6x+26)÷40=5(282)7x-47=37(283)2x=196(284)25x+2×31=212(285)1.9x-0.9x-1.9=2.1(286)4(13x+15)=164(287)7.9x+4.5=20.3(288)28+20x=148(289)15.9-1.8x=3.3(290)x-0.7=2.5(291)60÷x=30(292)18.8+3x=25.1(293)14.1-2x=2.3(294)2.9x-0.5x=36(295)39+x=108(296)x+49=83(297)(4x+12)÷12=4(298)x÷7=17(299)5.6x-0.9x+4.5=79.7(300)15x-6x+33=141(301)x-56=30(302)19x-2x-48=105(303)6x=7.2(304)19x-12x=14(305)2x+3.9=12.3(306)16x-31×0.5=3.7(307)13x-26=78(308)0.3x=15.6(309)13x-3x-21=59(310)x+1.5=6.2(311)11x-5x=78(312)12x+16x+37=177(313)1.5x+4.4x=29.5(314)10x-18=142(315)174-23x=59(316)9x-3.9=15.9(317)6.8x+5.9x-3=111.3(318)19x-14x=25(319)84x÷14=1.2(320)16(x-26)=192(321)2(7x-4)=76(322)48x-19x+2.8=40.5(323)2.3x+1.2x-1.3=107.2(324)19.1+4x=29.1(325)3÷x=1.5(326)x+9.9=18(327)(17x-5)÷2=23(328)6x+6×30=300(329)7x+59=157(330)5.3x+1.6x-3.9=37.5(331)6.3x+7.9x-3.2=67.8(332)x-4.3=2.6(333)9.8-x=1.1(334)2x+8x=50(335)0.7x+3.8×4=31.3(336)46+x=142(337)x+65=159(338)6(5x+23)=198(339)15x-7x-12=76(340)58x-47x-0.6=8.2(341)194-3x=119(342)8.7x-5=12.4(343)72+74x=220(344)11x-8×2.3=1.4(345)x÷27=0.3(346)(3x-47)÷8=2(347)14.3-0.4x=6.7(348)5x-7×14=17(349)14x-3.1=10.9(350)12.2+2x=30.2(351)0.7x+4.3×4=20.7(352)(8.5x+5.6)÷11=3.6(353)10.8-2x=8.2(354)5.6x+5.5x=66.6(355)0.2x-4.6=12.4(356)x÷24=0.6(357)4x÷48=2(358)x÷58=3(359)19x-13x-5=25(360)8.5x+1.3x+1.7=31.1(361)0.3x+1.3x-2.2=106.6(362)3x+15x-0.8=91(363)x÷27=3(364)4.8x-4.4x+4.1=9.3(365)3.9x+4=19.6(366)41+9x=68(367)9x=108(368)3x-5×20=89(369)1.5x+6.2x-4.5=95.6(370)57x÷38=3(371)x-8.2=1.3(372)6x-46×0.3=1.2(373)6x-3×48=30(374)1.2x+1.3x=7.5(375)4x+6×1.6=17.6(376)73x+26=172(377)9x-2x-20=85(378)3.2x+7.9x=133.2(379)12x-2x-35=115(380)(6.8x+7.3)÷5=13.7(381)x-5.1=3.6(382)3(0.9x+6.6)=49.5(383)2(x+46)=188(384)83x+35x+0.2=94.6(385)18x=126(386)2(7.9x+3.8)=39.2(387)30+x=66(388)0.2x÷3=2.8(389)52+6x=244(390)18x+3x+2.8=72.1(391)x+14=44(392)56x-35x-3.5=2.8(393)5x÷15=0.8(394)98x-54x-3.8=31.4(395)36÷x=12(396)3(x+21)=192(397)4x=24(398)41x-2.7=13.7(399)3(x+7)=168(400)19÷x=0.5(401)43x-5x+3=48.6(402)16x+12×15=372(403)8x-20×0.2=13.6(404)3x+4×3.4=23.5(405)5.8x+5.9x=46.8(406)(5.3x-2)÷28=2.2(407)0.5x-4.9=4.1(408)17x+3x=200(409)116-7x=18(410)0.8x-0.5x+2.6=19.7(411)2x-4.7=11.1(412)0.4x÷8=0.9(413)6.3x+3.9x+4.8=106.8(414)7.6x+8x-2.2=107(415)9.7-x=7.1(416)7x-2×19=25(417)15.5+0.2x=35.3(418)61x+13x+0.5=118.9(419)40x+26x-0.5=157.9(420)2(9x-16)=58(421)5.8x+4.8=22.2(422)9.2x-7.5x+2.4=7.5(423)19x-7x-18=30(424)(16x-18)÷13=6(425)7.4x-4.2x=41.6(426)4x+5x=333(427)82x-24x-2.1=55.9(428)1.6x÷24=0.2(429)0.5x-2.9=2.6(430)5(14x+8)=180(431)(8.7x-2.8)÷4=16.7(432)191+24x=383(433)x÷2=49(434)6x+3.1=16.3(435)3x+4.8=7.8(436)23x-13x-1.4=2.6(437)2x+4.3=16.5(438)11x-5x=36(439)2x+14x-33=47(440)3.2x+0.4x+1.7=98.9(441)0.2x+2=17(442)6x+5x=231(443)11x-9x+24=34(444)x+83=91(445)21x+63x+2.8=36.4(446)3.3x÷18=1.1(447)11.6+0.5x=20.6(448)19.4+2x=24(449)34x+2×2.9=12.6(450)18.9-2.8x=7.7(451)6x+8x-49=189(452)x-2.6=4.7(453)17x+5x+17=259(454)8.5+x=9.4(455)4.3x-0.6×12=10(456)11x-5x+26=134(457)x-45=51(458)10x=50(459)1.4x÷10=0.7(460)4.7x-1.2x-3.6=48.9(461)1.2x÷6=2(462)11x-7×24=19(463)4x+16x-23=117(464)0.6x-0.2×27=3.6(465)79x=15.8(466)37-x=11(467)0.3x+5.6=13.1(468)0.5x-2.4=6.1(469)0.2x=16.4(470)(2.8x-5.6)÷9=2.8(471)11.1-0.3x=8.7(472)9.7-x=2.1(473)x÷7=0.3(474)11x+2x+21=138(475)4.7-x=2.1(476)15.1-34x=8.3(477)(10x+28)÷48=6(478)19.8-1.7x=9.6(479)64+x=154(480)2x+29=205(481)3(4x+7)=45(482)2x+2.6=22.6(483)9x+5x-21=21(484)3.7x+6.3x-3.5=106.5(485)64x+44x-2.1=105.9(486)6x+3x+35=305(487)x+66=165(488)0.3x+1.4×11=20.5(489)0.4x+0.8x+1.6=44.8(490)6.5+4x=21.3(491)45-x=26(492)4(10x-30)=200(493)29x=116(494)x÷4=11(495)1.6x-2.9=5.1(496)23x+12×0.5=19.8(497)33x-21x+0.6=5.4(498)x+7=9.1(499)9.1-x=1.9(500)26x+78x+4.1=66.5(501)17x+3x=100(502)0.2x+3x+4.6=33.4(503)9x+6x=315(504)110+2x=160(505)11(2x-16)=176(506)x÷3=3.8(507)26x+2x+1.4=32.2(508)1.6x-1.1x=12(509)17x=6.8(510)x-4.9=3.8(511)0.6x+0.8×12=15(512)13x-9x=44(513)43x-20x-3=15.4(514)8.7x-6.8x+2.1=21.1(515)18x-4x+3=31(516)x÷26=0.3(517)165+7x=347(518)6.8x+5.9x+2=154.4(519)16.3-7x=3(520)19x+2×78=232(521)9.6-0.2x=4.2(522)1.1x-3.7=10.6(523)10.8-21x=6.6(524)4.9x+7.5x=161.2(525)x÷21=0.2(526)2.8x=16.8(527)4(5x-32)=72(528)(15x-24)÷3=57(529)2x+21×0.3=14.9(530)x-3=47(531)9x-34×3=33(532)3(2.8x+4)=45.6(533)14+8x=158(534)4x-36×0.2=2(535)(6x-8.4)÷3=9.2(536)28÷x=7(537)2x=3(538)62-22x=18(539)10x-5x+49=84(540)3(0.4x-3.2)=18參考答案(1)x=4(2)x=11(3)x=4(4)x=84(5)x=0.4(6)x=8.7(7)x=97(8)x=0.3(9)x=56(10)x=10(11)x=1.5(12)x=4.1(13)x=2(14)x=2(15)x=7(16)x=4(17)x=38(18)x=11(19)x=7(20)x=0.6(21)x=2(22)x=1.5(23)x=1.8(24)x=1.4(25)x=8(26)x=10(27)x=7.5(28)x=3(29)x=2(30)x=4.6(31)x=2(32)x=2(33)x=1.2(34)x=2(35)x=5.2(36)x=2(37)x=6(38)x=6(39)x=2(40)x=12(41)x=9.3(42)x=8(43)x=4(44)x=6(45)x=2(46)x=1.9(47)x=10(48)x=19(49)x=5(50)x=5(51)x=12(52)x=3(53)x=1.4(54)x=59(55)x=0.8(56)x=0.5(57)x=2(58)x=42(59)x=5(60)x=9(61)x=5(62)x=16(63)x=3(64)x=33(65)x=0.5(66)x=40(67)x=35(68)x=5(69)x=0.4(70)x=0.3(71)x=4.6(72)x=23(73)x=2.6(74)x=3(75)x=3(76)x=2.2(77)x=17(78)x=9(79)x=4(80)x=19(81)x=15(82)x=20(83)x=82(84)x=0.9(85)x=15(86)x=4(87)x=10(88)x=18(89)x=84(90)x=95(91)x=10(92)x=5(93)x=8.5(94)x=27(95)x=32(96)x=2(97)x=5(98)x=9(99)x=3(100)x=0.9(101)x=12(102)x=2(103)x=24(104)x=29(105)x=2.6(106)x=29(107)x=1.6(108)x=9(109)x=6(110)x=1.7(111)x=8(112)x=8(113)x=0.4(114)x=3.2(115)x=2.6(116)x=9(117)x=16(118)x=5(119)x=6.1(120)x=3.5(121)x=4(122)x=2(123)x=35(124)x=4.3(125)x=4.3(126)x=3(127)x=1.8(128)x=15.6(129)x=9(130)x=2(131)x=0.3(132)x=11(133)x=2(134)x=28(135)x=10(136)x=12(137)x=20(138)x=8.3(139)x=4.1(140)x=3(141)x=6(142)x=35(143)x=6(144)x=17(145)x=0.3(146)x=19(147)x=3(148)x=2(149)x=8(150)x=6(151)x=6(152)x=57(153)x=17(154)x=35(155)x=2.4(156)x=0.3(157)x=4(158)x=5.3(159)x=4(160)x=2(161)x=0.2(162)x=10(163)x=22(164)x=0.5(165)x=0.8(166)x=93(167)x=11(168)x=4.1(169)x=42(170)x=34(171)x=14(172)x=34(173)x=47(174)x=39(175)x=1.3(176)x=6(177)x=11(178)x=11(179)x=22(180)x=2(181)x=29(182)x=4(183)x=2(184)x=2(185)x=6(186)x=29(187)x=70(188)x=20(189)x=44(190)x=2(191)x=8.5(192)x=15(193)x=7(194)x=8(195)x=8(196)x=5(197)x=0.3(198)x=3.8(199)x=14(200)x=2(201)x=7(202)x=4(203)x=4(204)x=36(205)x=18(206)x=10(207)x=2(208)x=3(209)x=2(210)x=7.5(211)x=5.9(212)x=3(213)x=6(214)x=4(215)x=5(216)x=2(217)x=0.3(218)x=7(219)x=14(220)x=21(221)x=2(222)x=95(223)x=5(224)x=1.6(225)x=4(226)x=83(227)x=4(228)x=0.6(229)x=2.1(230)x=0.8(231)x=10(232)x=21(233)x=4(234)x=64(235)x=12(236)x=1.3(237)x=1.1(238)x=1(239)x=6(240)x=24(241)x=24(242)x=23(243)x=62(244)x=13(245)x=35(246)x=31(247)x=12(248)x=88(249)x=27(250)x=9(251)x=96(252)x=17(253)x=37(254)x=84(255)x=2(256)x=8(257)x=8.5(258)x=22(259)x=0.9(260)x=9(261)x=35(262)x=0.2(263)x=29(264)x=14(265)x=20(266)x=5(267)x=12(268)x=15(269)x=1.2(270)x=3(271)x=6(272)x=2(273)x=0.2(274)x=4(275)x=85(276)x=11(277)x=0.2(278)x=6.7(279)x=6(280)x=2(281)x=29(282)x=12(283)x=98(284)x=6(285)x=4(286)x=2(287)x=2(288)x=6(289)x=7(290)x=3.2(291)x=2(292)x=2.1(293)x=5.9(294)x=15(295)x=69(296)x=34(297)x=9(298)x=119(299)x=16(300)x=12(301)x=86(302)x=9(303)x=1.2(304)x=2(305)x=4.2(306)x=1.2(307)x=8(308)x=52(309)x=8(310)x=4.7(311)x=13(312)x=5(313)x=5(314)x=16(315)x=5(316)x=2.2(317)x=9(318)x=5(319)x=0.2(320)x=38(321)x=6(322)x=1.3(323)x=31(324)x=2.5(325)x=2(326)x=8.1(327)x=3(328)x=20(329)x=14(330)x=6(331)x=5(332)x=6.9(333)x=8.7(334)x=5(335)x=23(336)x=96(337)x=94(338)x=2(339)x=11(340)x=0.8(341)x=25(342)x=2(343)x=2(344)x=1.8(345)x=8.1(346)x=21(347)x=19(348)x=23(349)x=1(350)x=9(351)x=5(352)x=4(353)x=1.3(354)x=6(355)x=85(356)x=14.4(357)x=24(358)x=174(359)x=5(360)x=3(361)x=68(362)x=5.1(363)x=81(364)x=13(365)x=4(366)x=3(367)x=12(368)x=63(369)x=13(370)x=2(371)x=9.5(372)x=2.5(373)x=29(374)x=3(375)x=2(376)x=2(377)x=15(378)x=12(379)x=15(380)x=9(381)x=8.7(382)x=11(383)x=48(384)x=0.8(385)x=7(386)x=2(387)x=36(388)x=42(389)x=32(390)x=3.3(391)x=30(392)x=0.3(393)x=2.4(394)x=0