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

五年級(jí)數(shù)學(xué)(方程)專項(xiàng)練習(xí)題及答案匯編(1)39x=7.8(2)1.8x=7.2(3)153-2x=61(4)3x+2×36=165(5)8.5+x=15.8(6)3(2.6x-3.2)=37.2(7)18.3-2.5x=8.3(8)17.4-46x=8.2(9)16x+17x=99(10)0.3x=15.6(11)136÷x=4(12)x-12=70(13)18(12x-26)=180(14)63-x=19(15)7x+10x-41=282(16)14x+4.5=19.9(17)6x-3x=93(18)1.9+x=5.3(19)7.8-x=2.8(20)40x-31x-3=6(21)14x-5×3=69(22)7.4x-1.4x+3.9=81.9(23)(13x+41)÷14=15(24)0.5x+3x-0.3=73.2(25)x-1.1=2.4(26)x-5.9=1.9(27)56x+17x-3.2=40.6(28)3.2x+3.6x=142.8(29)2.5x=5(30)7x+54=180(31)32x+73x+3.4=118.9(32)6x=16.8(33)19.5-0.7x=15.3(34)(17x+6)÷2=122(35)9.3x+2.6x+3=26.8(36)72+x=134(37)14x÷6=2.8(38)49x+22=120(39)5x÷8=2.5(40)9.1-x=7.8(41)52x-11x+0.7=49.9(42)11x+9x+39=239(43)3.7x-2.9x+4.1=12.9(44)2(1.4x+9.4)=27.2(45)5.7+x=12.9(46)2x÷46=3(47)x-21=54(48)75x-37x-3.3=34.7(49)6x+7×10=214(50)x+18=92(51)2+x=22(52)x+4=52(53)2(25x-34)=82(54)6.4x-5.6x-2.6=2.2(55)144÷x=12(56)84x+30x-0.3=45.3(57)0.6x+1.2×15=24.6(58)2(21x+19)=164(59)9(0.7x+0.2)=14.4(60)24+4x=76(61)11x+28x-4.8=22.5(62)6.1x+5.4x+2.9=129.4(63)5.1x+4.6x+3.3=80.9(64)x÷24=2(65)5x+2×19=83(66)0.5x+2.3×4=14.2(67)14x-7x+47=103(68)4x+3x=56(69)19x-2x-3.8=38.7(70)4x-6×3=126(71)25x-36×2=78(72)3x-19×0.3=7.2(73)2x+15x-43=93(74)3x=99(75)81x+70x-0.4=150.6(76)1.1x-0.9×3=1.7(77)11x-3x-2.5=23.1(78)2x+4×2.6=16.6(79)3x÷7=12(80)2.5x+1.7x+1.6=85.6(81)3x+2×58=248(82)27x+5.9=24.8(83)153+2x=297(84)26x-21x-4.3=6.7(85)5(1.3x-9.3)=25(86)28x+38x+1.2=14.4(87)11x+7x-44=244(88)1.4x-1.2x-3=5.4(89)2x+4x+15=183(90)x+73=132(91)14x+13x+2=61.4(92)11x+5x-30=242(93)9.1+9.9x=28.9(94)5.3x-0.3x+3.5=43.5(95)34x-28=108(96)11.7+6x=27.9(97)7x+9x=256(98)86÷x=43(99)4(20x-40)=80(100)13x+16x+49=252(101)8x-4x+4.4=41.2(102)1.8x+8.6x=62.4(103)6.3x-3.4x+1.2=9.9(104)3x+14x-25=43(105)3(27x+10)=192(106)7x+8x=60(107)19(1.8x-3.6)=34.2(108)2x=19(109)25x+34x+2.8=61.8(110)11x+7x=36(111)9x÷4=36(112)9.7-x=8.6(113)164-2x=38(114)13.3-18x=6.1(115)13x+33x-3.3=51.9(116)0.4x+0.2×5=5.8(117)2x÷4=1.2(118)11.9÷x=0.7(119)52-x=29(120)0.9x+2.4x=16.5(121)18x-6x=108(122)0.2x+3.7=10.1(123)73+2x=87(124)73+3x=211(125)3(3.4x+0.3)=31.5(126)3(7.2x-8.9)=38.1(127)(17x-15)÷11=11(128)6x÷14=0.3(129)x+9.3=18.9(130)x-55=43(131)3x+4.6=18.1(132)9(9x-32)=117(133)22x-20×0.5=9.8(134)11.6+7x=13(135)151-3x=46(136)x÷4=44(137)x+3.9=8.6(138)4x=18(139)5x÷65=0.3(140)18.8-6.9x=5(141)9.6+x=17.7(142)0.3x-2.1=2.7(143)x÷18=1.1(144)8(0.5x+0.2)=25.6(145)(8.5x+6.5)÷10=4.9(146)88-x=45(147)(11x-44)÷22=10(148)7x-4x-39=24(149)6.8x-0.7x+2.9=76.1(150)2(11x+11)=154(151)2x=90(152)68x-31x+1.7=38.7(153)14x-11x-9=18(154)1.2x+3.4×2=23.6(155)31x-49=13(156)156÷x=3(157)4x-32×0.4=5.6(158)x+6.5=10.4(159)26x-14×1=4.2(160)2x+2.1=12.9(161)9+0.7x=15.3(162)5x+3x=160(163)16.1-6.5x=3.1(164)3x+5.4=16.2(165)x-32=48(166)3(6x-18)=144(167)9+4x=15(168)134+15x=224(169)x+8.6=12.1(170)3x+27=213(171)180÷x=15(172)2x=20(173)86+x=130(174)37x+60x+0.4=116.8(175)0.8x+2.2×4=16(176)x÷73=2(177)0.7x+0.5x-0.2=79(178)176+36x=320(179)0.2x-5.1=4.3(180)83+x=103(181)x÷7=27(182)95-x=59(183)1.1x-0.5x-4.1=24.1(184)3(x+38)=189(185)x+62=155(186)12x-15×11=15(187)2.2x+1.2×5=10.4(188)17x-11x+16=64(189)9.5-x=1.9(190)7.8-x=6.4(191)(6.7x+1.4)÷3=9.4(192)2.5x+7x+4.1=42.1(193)99-x=31(194)4.6x-2.2=11.6(195)4x+3.8=19(196)15(23x-33)=195(197)12.8÷x=0.8(198)3x=141(199)3.5x-2.5x=22(200)25x-15×3=80(201)20x÷12=5(202)(17x+38)÷20=7(203)1.9+x=7.7(204)0.4x=16.8(205)x÷15=1.2(206)3(x+17)=99(207)(6x-38)÷26=5(208)x+1=1.8(209)0.3x=19.5(210)4.8x+2.6x-0.7=51.1(211)11x-2×2.9=14(212)10(2x-28)=160(213)176÷x=16(214)4x+27=215(215)5.3x-1.9x=13.6(216)7.3+4x=15.3(217)11.8-5x=7.8(218)0.2x+2.5=14.3(219)2x+6×20=204(220)4.3x-1.8×9=1(221)7x-3.7x=16.5(222)x+9.1=14.4(223)5x÷2=4.5(224)(16x+8)÷4=30(225)49x-4.8=5(226)5.8-x=1.1(227)5x-2x+18=129(228)6-x=4.5(229)0.3x÷9=0.7(230)x-2.5=5.7(231)97-x=64(232)(0.2x+2.4)÷5=0.8(233)9x+5x+23=303(234)(5.9x-4.4)÷19=0.7(235)(1.1x+2.9)÷3=2.8(236)x÷13=11(237)3.3x+6.2x-0.3=142.2(238)3x+4.1=13.1(239)16.1+3.1x=25.4(240)(15x+30)÷10=21(241)8(1.2x-2.9)=44(242)(7.9x-3.3)÷8=6.5(243)9x-5x+10=94(244)3.2+1.6x=16(245)9x-4x-15=55(246)(9.9x-7.3)÷5=2.5(247)9(3x-28)=153(248)7.6x-2x+1.4=12.6(249)65+x=159(250)14+x=21(251)(10x-26)÷2=47(252)3x+5×1.8=14.7(253)7.6x-3.1x=36(254)62x+57x+3.8=51.4(255)37x=111(256)0.2x=1.8(257)9.6÷x=0.2(258)25x+5×24=195(259)26x+32x+0.7=64.5(260)0.3x=3(261)187-13x=18(262)(8x+2.2)÷3=27.4(263)0.2x-2.9=7.9(264)7x-13×4=46(265)89+12x=209(266)x+14=64(267)18x-12x+12=48(268)14-0.4x=3.6(269)34x-31x+2.4=3.6(270)38x-29x-1.2=11.4(271)0.8x+3.4=17(272)9x-1.1=14.2(273)14x+16x+2=92(274)6x+48=84(275)(2.6x-8.1)÷3=5.1(276)18x+9x+45=234(277)(3.4x+9.7)÷19=2.3(278)8x-4x+13=33(279)(1.2x-6)÷20=0.3(280)9.6x-1.2x=25.2(281)x÷2=43(282)14.9+23x=28.7(283)1.2+2x=11.8(284)1.1+8x=9.9(285)11x+8x=285(286)0.2x+2.6=21(287)8.8x-7.5x+1.2=12.9(288)x÷15=6(289)10x+2×3.6=20.2(290)2.5x+1.7x-2.4=153(291)x-37=58(292)19+8x=59(293)25x+14×1=29(294)5x+26×0.6=22.6(295)60x-6x-2.9=56.5(296)0.2x-0.7×4=7(297)14x-5x+40=139(298)51x÷34=3(299)5.5÷x=1.1(300)3x-2×56=20(301)37x-30x-2.5=13.6(302)42x+55=181(303)50x+85x-4.4=130.6(304)0.2x÷6=1.8(305)2x=16.2(306)18.3-2x=4.3(307)9x-11×1=3.4(308)5(3x-12)=120(309)28x÷21=0.4(310)101-13x=49(311)5x-2x-32=76(312)13.2+9.9x=33(313)x+1.6=9.8(314)4x+5.2x-2.6=126.2(315)(1.6x+8.6)÷2=17.1(316)20x-7×0.4=7.2(317)48x÷24=8(318)14÷x=1.4(319)(0.6x-3.4)÷22=0.2(320)13.6-15x=6.1(321)13x-31=138(322)44x-31x+0.8=21.6(323)3.8x-0.4×6=5.2(324)x+98=170(325)12(2.3x-5.2)=48(326)29x-29=87(327)2x-7×9=125(328)(10x+24)÷24=11(329)33x+13x+2.6=76.2(330)6.9x-3.2x-3.6=40.8(331)8-x=5.9(332)13x-10x=45(333)x-0.5=5.5(334)0.7x-0.4x-0.5=25(335)0.6x-2.5=2.3(336)16x-8x=24(337)42x+35×0.5=25.9(338)x-4.5=4.6(339)75+x=155(340)16x÷4=3.6(341)10x+17=157(342)10x-1.6=12.4(343)1.5x+1.1x+0.3=99.1(344)(4.8x-3)÷2=15.3(345)2x=3.4(346)(3.7x-1.8)÷4=16.2(347)16x+2x+33=177(348)4.4x-0.3x=77.9(349)3.1x-0.9×2=16.8(350)8.2x-1.9x=63(351)8x+12x=40(352)8x÷36=0.4(353)x÷79=0.2(354)16x-41=151(355)4x-3.8=9.8(356)9(x+3)=108(357)2x-1.2=3.8(358)7x-34=155(359)11x-6x=10(360)16x÷20=0.8(361)3x+5x=240(362)45x÷5=18(363)15.1-12x=7.9(364)x÷25=2(365)6x+12x-47=115(366)4(0.6x+0.4)=16(367)10x=90(368)8x=17.6(369)99-x=14(370)4.5x=13.5(371)4x-2.3=10.9(372)14x-9x+9=49(373)11(2.4x-8.2)=41.8(374)x+43=71(375)0.2x÷4=1.8(376)(14x+10)÷2=110(377)20x-5×9=95(378)17.3-0.6x=10.7(379)0.9x÷3=3.6(380)9.5-x=1.7(381)16.8÷x=1.2(382)1.2x+1.9x=111.6(383)2(0.5x+1.8)=38.6(384)8x+11x-0.2=70.1(385)16x-11x-39=21(386)x+5.5=11.7(387)175-31x=82(388)2x-27=97(389)(17x-32)÷30=8(390)8x+10x+11=137(391)4x+5x-44=172(392)15x-5x-17=13(393)25x-15x+3.6=25.6(394)x÷17=11(395)63+56x=175(396)15+0.5x=31.5(397)0.3x+4.1=11.6(398)58-x=39(399)6x+17x=184(400)44x-31x+0.5=7(401)8.4+x=12.3(402)9.4x+5.2x-4.8=141.2(403)5.4÷x=0.2(404)19-17x=7.1(405)3x+44=62(406)3.4x+0.2x=46.8(407)5x-7×1.1=9.3(408)3.6x+0.6x+0.3=96.9(409)6.4-0.5x=1.4(410)2.6x-1.1x=43.5(411)5.9x+3.1x-0.7=35.3(412)(0.7x-2.4)÷25=0.1(413)34x=170(414)35x-32x+1.2=7.2(415)11x-6x=65(416)17(0.3x+0.4)=42.5(417)x+8.9=14.7(418)x÷87=0.2(419)5x-3x=52(420)0.3x-3.2=2.5(421)17x-8x-34=56(422)6x÷4=12(423)x+67=97(424)(x+35)÷15=3(425)4x+14x-38=52(426)0.2x÷46=0.3(427)x÷58=0.2(428)7x+17x+39=87(429)6x-2.7=9.3(430)x÷7=1.7(431)3(8x+0.3)=48.9(432)x+81=124(433)14(0.8x-8.6)=25.2(434)4.1x+9.4x+2.1=69.6(435)3(10x+8)=114(436)59x-34x-1.3=18.7(437)13x-7x-29=31(438)x-5.2=2.7(439)42x=12.6(440)3.4x-1.1=12.5(441)2x÷9=22(442)1.1x+2.6=14.7(443)6.8x-3.8x+3.3=45.3(444)3x+60×3=204(445)20x+5×2.1=16.5(446)x÷6=0.7(447)x-8.2=1.1(448)1.2x+3.7=14.5(449)5.5x÷11=1(450)73x-4.9=9.7(451)x-8=48(452)17.2+31x=35.8(453)11x+16×0.8=23.8(454)0.4x+0.9×20=20(455)11.6+28x=25.6(456)0.3x-0.6×9=9.3(457)9.2x-7.5x+3=6.4(458)7.1x+2.4x=95(459)4.5÷x=0.9(460)9x-17=91(461)3+4.4x=20.6(462)13x+8x-36=216(463)2.3x+2.6=18.7(464)7.9x-5.1x=14(465)16x=192(466)16x-6x=50(467)5.8x-2.8x-3.1=2.9(468)171-40x=11(469)9.2-3.8x=1.6(470)3.3x+1.4x=47(471)x-3=50(472)4.8+x=14.3(473)3x+4×2=185(474)168÷x=24(475)10.1+0.4x=16.5(476)2.1x+5.4x+4.5=49.5(477)8(4x+15)=184(478)2(6x+30)=120(479)1.1x=19.8(480)6.1x+1.9x=112(481)(6.6x+2.4)÷32=0.9(482)(6x-36)÷18=3(483)12x-17=151(484)0.3x+5.9=8(485)1.1x+5.2x-4.5=83.7(486)12.7+0.6x=31.3(487)19.9-3x=6.7(488)5x+11×10=285(489)0.2x-1.2=17.8(490)0.9x+0.9×18=27(491)x÷2=2(492)x-2=6.5(493)39÷x=13(494)1.3x+1.4×9=26.9(495)x-31=64(496)3x-2.6x-1.9=6.5(497)7.8x-6.8x-4.7=5.3(498)61x-59x+0.4=2.6(499)(6x+39)÷15=11(500)x-8=32(501)6.1x-2.8=9.4(502)2(4.1x+5)=34.6(503)32x-5.3=1.1(504)40-x=13(505)x-1.4=1.5(506)17.9-1.4x=5.3(507)13(1.2x-9.1)=37.7(508)7.3x-2.7x-4.4=27.8(509)(15x-35)÷44=5(510)4x=128(511)53x+30x-4.9=86.4(512)1.3x-1.2×5=12.2(513)13.3÷x=0.7(514)11.5-26x=3.7(515)60x+85x-1.4=129.1(516)0.6x÷14=0.3(517)57x+14x+4.2=46.8(518)(8x-4)÷3=36(519)4x-2x-6=80(520)x÷7=1.6(521)(4.9x+9.8)÷4=14.7(522)111-14x=13(523)6x-3×0.2=6(524)8x-4x+20=92(525)9+x=9.8(526)16+x=46(527)16x+5.1=14.7(528)188÷x=4(529)8x-3x=45(530)0.9x÷24=0.3(531)2x+5.4=16(532)2.4x-1.1×8=3.2(533)(18x-10)÷4=20(534)2.1+x=9.2(535)176-19x=138(536)1x-1×18=2(537)6x=4.2(538)74+x=130(539)11x+8×0.2=6(540)19x+17=112參考答案(1)x=0.2(2)x=4(3)x=46(4)x=31(5)x=7.3(6)x=6(7)x=4(8)x=0.2(9)x=3(10)x=52(11)x=34(12)x=82(13)x=3(14)x=44(15)x=19(16)x=1.1(17)x=31(18)x=3.4(19)x=5(20)x=1(21)x=6(22)x=13(23)x=13(24)x=21(25)x=3.5(26)x=7.8(27)x=0.6(28)x=21(29)x=2(30)x=18(31)x=1.1(32)x=2.8(33)x=6(34)x=14(35)x=2(36)x=62(37)x=1.2(38)x=2(39)x=4(40)x=1.3(41)x=1.2(42)x=10(43)x=11(44)x=3(45)x=7.2(46)x=69(47)x=75(48)x=1(49)x=24(50)x=74(51)x=20(52)x=48(53)x=3(54)x=6(55)x=12(56)x=0.4(57)x=11(58)x=3(59)x=2(60)x=13(61)x=0.7(62)x=11(63)x=8(64)x=48(65)x=9(66)x=10(67)x=8(68)x=8(69)x=2.5(70)x=36(71)x=6(72)x=4.3(73)x=8(74)x=33(75)x=1(76)x=4(77)x=3.2(78)x=3.1(79)x=28(80)x=20(81)x=44(82)x=0.7(83)x=72(84)x=2.2(85)x=11(86)x=0.2(87)x=16(88)x=42(89)x=28(90)x=59(91)x=2.2(92)x=17(93)x=2(94)x=8(95)x=4(96)x=2.7(97)x=16(98)x=2(99)x=3(100)x=7(101)x=9.2(102)x=6(103)x=3(104)x=4(105)x=2(106)x=4(107)x=3(108)x=9.5(109)x=1(110)x=2(111)x=16(112)x=1.1(113)x=63(114)x=0.4(115)x=1.2(116)x=12(117)x=2.4(118)x=17(119)x=23(120)x=5(121)x=9(122)x=32(123)x=7(124)x=46(125)x=3(126)x=3(127)x=8(128)x=0.7(129)x=9.6(130)x=98(131)x=4.5(132)x=5(133)x=0.9(134)x=0.2(135)x=35(136)x=176(137)x=4.7(138)x=4.5(139)x=3.9(140)x=2(141)x=8.1(142)x=16(143)x=19.8(144)x=6(145)x=5(146)x=43(147)x=24(148)x=21(149)x=12(150)x=6(151)x=45(152)x=1(153)x=9(154)x=14(155)x=2(156)x=52(157)x=4.6(158)x=3.9(159)x=0.7(160)x=5.4(161)x=9(162)x=20(163)x=2(164)x=3.6(165)x=80(166)x=11(167)x=1.5(168)x=6(169)x=3.5(170)x=62(171)x=12(172)x=10(173)x=44(174)x=1.2(175)x=9(176)x=146(177)x=66(178)x=4(179)x=47(180)x=20(181)x=189(182)x=36(183)x=47(184)x=25(185)x=93(186)x=15(187)x=2(188)x=8(189)x=7.6(190)x=1.4(191)x=4(192)x=4(193)x=68(194)x=3(195)x=3.8(196)x=2(197)x=16(198)x=47(199)x=22(200)x=5(201)x=3(202)x=6(203)x=5.8(204)x=42(205)x=18(206)x=16(207)x=28(208)x=0.8(209)x=65(210)x=7(211)x=1.8(212)x=22(213)x=11(214)x=47(215)x=4(216)x=2(217)x=0.8(218)x=59(219)x=42(220)x=4(221)x=5(222)x=5.3(223)x=1.8(224)x=7(225)x=0.2(226)x=4.7(227)x=37(228)x=1.5(229)x=21(230)x=8.2(231)x=33(232)x=8(233)x=20(234)x=3(235)x=5(236)x=143(237)x=15(238)x=3(239)x=3(240)x=12(241)x=7(242)x=7(243)x=21(244)x=8(245)x=14(246)x=2(247)x=15(248)x=2(249)x=94(250)x=7(251)x=12(252)x=1.9(253)x=8(254)x=0.4(255)x=3(256)x=9(257)x=48(258)x=3(259)x=1.1(260)x=10(261)x=13(262)x=10(263)x=54(264)x=14(265)x=10(266)x=50(267)x=6(268)x=26(269)x=0.4(270)x=1.4(271)x=17(272)x=1.7(273)x=3(274)x=6(275)x=9(276)x=7(277)x=10(278)x=5(279)x=10(280)x=3(281)x=86(282)x=0.6(283)x=5.3(284)x=1.1(285)x=15(286)x=92(287)x=9(288)x=90(289)x=1.3(290)x=37(291)x=95(292)x=5(293)x=0.6(294)x=1.4(295)x=1.1(296)x=49(297)x=11(298)x=2(299)x=5(300)x=44(301)x=2.3(302)x=3(303)x=1(304)x=54(305)x=8.1(306)x=7(307)x=1.6(308)x=12(309)x=0.3(310)x=4(311)x=36(312)x=2(313)x=8.2(314)x=14(315)x=16(316)x=0.5(317)x=4(318)x=10(319)x=13(320)x=0.5(321)x=13(322)x=1.6(323)x=2(324)x=72(325)x=4(326)x=4(327)x=94(328)x=24(329)x=1.6(330)x=12(331)x=2.1(332)x=15(333)x=6(334)x=85(335)x=8(336)x=3(337)x=0.2(338)x=9.1(339)x=80(340)x=0.9(341)x=14(342)x=1.4(343)x=38(344)x=7(345)x=1.7(346)x=18(347)x=8(348)x=19(349)x=6(350)x=10(351)x=2(352)x=1.8(353)x=15.8(354)x=12(355)x=3.4(356)x=9(357)x=2.5(358)x=27(359)x=2(360)x=1(361)x=30(362)x=2(363)x=0.6(364)x=50(365)x=9(366)x=6(367)x=9(368)x=2.2(369)x=85(370)x=3(371)x=3.3(372)x=8(373)x=5(374)x=28(375)x=36(376)x=15(377)x=7(378)x=11(379)x=12(380)x=7.8(381)x=14(382)x=36(383)x=35(384)x=3.7(385)x=12(386)x=6.2(387)x=3(388)x=62(389)x=16(390)x=7(391)x=24(392)x=3(393)x=2.2(