五年級數(shù)學(xué)(方程)專項練習題及答案匯編

五年級數(shù)學(xué)(方程)專項練習題及答案匯編(1)190-87x=16(2)5x-12×0.8=10.4(3)18+x=27(4)6.4÷x=0.2(5)0.9x+8.8x-3.3=64.6(6)22x+5.4=14.2(7)5.8x-4.8x+0.8=2.8(8)4x+18x-35=97(9)3x-24=36(10)5x+4x+34=52(11)(4x+47)÷37=3(12)x÷51=0.2(13)8.1-x=5.8(14)4x-43=29(15)x+59=125(16)3.4x+0.3x+3.1=84.5(17)53x+31x+1.4=127.4(18)2.6x-2.2x-4.7=3.7(19)18x÷90=2(20)0.3x-1.2=18(21)143-6x=35(22)1.8+x=7.5(23)(7x+27)÷4=26(24)(9.8x-4)÷2=12.7(25)19x=13.3(26)38x+20x-3.6=31.2(27)84x+25=193(28)80x+89x+4.3=122.6(29)96x-91x+4.8=9.8(30)6.6+x=10.9(31)x+9=13(32)3(17x+12)=189(33)27x=54(34)8.6x-2.9=14.3(35)98-x=87(36)6x=12(37)x+9.6=18.2(38)17x+2.6=12.8(39)8.5-x=1.7(40)17.9+0.4x=29.1(41)0.2x+3.6=14(42)19.7-18x=8.9(43)5x+4×3.2=31.8(44)3.1x-1.3x=12.6(45)6+x=15(46)46÷x=23(47)x-44=44(48)13x÷26=0.2(49)57+x=148(50)12(2x-9)=132(51)x-1.4=1.6(52)0.6x+0.3×24=20.4(53)x÷37=5(54)4(14x+13)=164(55)x-2.7=2.6(56)5.5-x=4.4(57)14÷x=2(58)14.5-2.5x=9.5(59)5(0.7x-5.1)=9.5(60)177+5x=282(61)20x=40(62)7.6+x=9.8(63)6x+8x=266(64)45x-44=46(65)18x-3x=105(66)x-1.6=1.3(67)15x÷40=3(68)1.6x÷8=1(69)11.1+2x=14.9(70)0.7x+3.4x-2=6.2(71)7x+29=204(72)5(0.2x+1.7)=21.5(73)10.1-27x=4.7(74)2.4x÷4=1.8(75)23x-12x-3.1=31(76)6(4.6x-3.8)=32.4(77)7x+3x-37=243(78)2x÷3=1(79)x-1.8=1.5(80)11x+5x+7=103(81)55x÷11=1.5(82)4x-3×2=90(83)7.9-x=3.3(84)x÷2=25(85)2.4x+2.1x+2.3=137.3(86)(7.1x-2.5)÷2=16.5(87)3x+24=168(88)x÷32=2(89)17x-3.3=1.8(90)x÷5=3.4(91)16.6+0.7x=35.5(92)62x+42x-0.2=72.6(93)2x+5×1.4=8.8(94)9x=9.9(95)4x-2x+46=86(96)3.9+0.6x=21.3(97)8.1+7x=22.8(98)6(29x-40)=108(99)183-4x=111(100)17x-9x-15=17(101)197+4x=221(102)16x=12.8(103)0.8x-4.5=15.5(104)21x-5×1.3=1.9(105)3.7x-1.3×9=3.1(106)x-21=67(107)(6.2x-5.3)÷5=10.1(108)0.9x+1.4×2=4.6(109)25x=75(110)9x+5.6=24.5(111)2x+1.2=13(112)33x+17=215(113)9.9x-4.5x=21.6(114)(7x+7)÷14=10(115)16x+4x-26=14(116)(4.2x+9.1)÷7=3.7(117)195-74x=47(118)7.8x+8.3x+0.7=145.6(119)2x=118(120)2x-10×7=110(121)196-21x=28(122)7x-41=43(123)x÷40=3(124)3(6x-29)=147(125)34x-24x+3.7=23.7(126)8x+23x-1.2=129(127)1.7x-1.3x-0.2=5.4(128)x÷10=0.4(129)4.2x÷12=1.4(130)3.7x+2.5=13.6(131)6x+14x-38=122(132)x÷10=1.8(133)4(4.6x-6.8)=9.6(134)2(4.5x+5.3)=28.6(135)175+12x=319(136)7x+9×1.1=12(137)0.6x+5.9=22.7(138)190-32x=94(139)14x-3×2=162(140)1.4x-0.3x=34.1(141)2(0.5x+3.2)=40.4(142)2(4.2x+6.6)=30(143)x+94=160(144)0.8+x=5.8(145)x+73=78(146)10x-4x-37=65(147)5x-4×17=62(148)(9.8x+5.2)÷12=3.7(149)10x=160(150)x÷11=1.1(151)7÷x=1(152)13+70x=153(153)9.4x-4.9x+0.8=27.8(154)2.9x+1.8x+2.3=72.8(155)3x+19x-5=215(156)x-0.9=1.4(157)71-x=18(158)0.4x=2(159)(2.4x-7.2)÷6=6.4(160)x÷7=2.2(161)0.6x-4.1×2=7.4(162)x÷6=3(163)3.9x+1.4×3=15.9(164)7x-12=58(165)2x+22×2=184(166)18x-16x=14(167)0.7x+5.9=15(168)5.6x-1.7x+4.7=20.3(169)4.9x+6.3x=145.6(170)5.3x-3.8x=12(171)5x-4.7=11.3(172)13.9-2x=10.5(173)38x+25×0.4=21.4(174)9.3-0.6x=3.9(175)182-5x=17(176)33+3x=132(177)(11x+28)÷14=13(178)9x-1.7=1.9(179)9x+12x=336(180)16.8÷x=2.4(181)4.6x+5.3x+4=103(182)(6x-42)÷6=7(183)19x+1.2=6.9(184)4+3.9x=15.7(185)x-34=25(186)33x=9.9(187)7x-31×0.3=1.9(188)1.2x-3.9=11.7(189)3.5x-0.4x-3.5=21.3(190)8.7x+5x-3.6=37.5(191)3x+0.9x+3=123.9(192)0.5x-0.2×10=16.5(193)(1.9x-3.1)÷5=2.8(194)6x=1.2(195)98+x=125(196)(9x+41)÷5=19(197)19.3+4x=29.3(198)(2.8x-6.3)÷7=1.1(199)30x=60(200)9x÷6=18(201)4.2+0.5x=12.2(202)15x=7.5(203)2.6x-1.9x-2=21.1(204)16x-6x=50(205)13x-10x=15(206)9.3+3x=24.6(207)x+7.2=9.2(208)9.7-x=6.5(209)9x-6x=54(210)x÷9=1.8(211)(14x+44)÷26=6(212)(11x-20)÷3=19(213)15x+8x+10=56(214)3.5x+6x=114(215)0.2x-1.6=3.2(216)x÷2=30(217)85x-36x-3.3=50.6(218)0.2x÷10=1.5(219)2x=72(220)3x+5x-11=205(221)32x+41×0.4=26(222)(6.5x+3.8)÷16=4.3(223)94-x=89(224)148÷x=4(225)x+89=100(226)12(14x-13)=180(227)50x-43x+2.1=11.9(228)2x-3.9=6.9(229)12x+4x+0.4=35.6(230)13+73x=27.6(231)36x+82x+4.3=110.5(232)19.2-3x=14.7(233)80x-37x+4.5=30.3(234)14x+14×9=308(235)10x+7x+28=368(236)185÷x=37(237)2(18x+10)=92(238)7x+22=218(239)6x÷40=0.3(240)1.2x-3.3=6.3(241)56x+82x+1.1=111.5(242)14x-11x-2.4=10.2(243)1.5x=9(244)1x+3.7×3=16.1(245)9.6x-1.9x+3.9=50.1(246)36x+86x-2.8=82.6(247)2x+9×22=212(248)30x+23=143(249)59x-3.8=13.9(250)6x+1.7x=100.1(251)6.1x+5.5x-3.7=100.7(252)2(8x-23)=194(253)x-24=69(254)x-68=21(255)1x÷5=2.4(256)5.3x=10.6(257)39x=19.5(258)14.5+10x=30.5(259)7x+9x-15=17(260)2x+1.7=21.5(261)45+x=111(262)19x+7x+0.7=34.5(263)11x-54=133(264)8x÷30=0.4(265)x+5.4=11.7(266)16x÷48=4(267)19x-10x+22=49(268)16(0.6x+0.2)=32(269)9x÷15=3(270)3x+11×1.4=20.8(271)13x+15x=196(272)13x+2x+17=107(273)9x-2×3=138(274)1.4x=14(275)2(4.5x-5.1)=43.8(276)2(3x-24)=108(277)16(0.4x-1.1)=33.6(278)5x-2x-21=57(279)2x+20×5=142(280)(12x-40)÷13=8(281)3.9x-1.3x-1.5=63.5(282)60x-37x+1.6=13.1(283)34x-32x+2.4=4.6(284)18.7÷x=1.7(285)4.9x+3.1=22.7(286)x+2.4=3.8(287)x÷28=6(288)9.8x-6.3x+0.9=25.4(289)2x+46=232(290)(5.7x+7)÷2=49.1(291)63÷x=9(292)119+13x=262(293)8.3-0.2x=4.1(294)x+61=97(295)x+5.9=6.3(296)6.2-x=4.3(297)2.2+x=3.1(298)9x-5x-16=28(299)8x-53×2=46(300)8x+7x=90(301)39+x=105(302)11x+8x-24=33(303)7x+2.4=17.1(304)70x-25x-4.1=13.9(305)8.4÷x=4.2(306)186-2x=166(307)20(1.2x-4)=40(308)6.7x-3.8x=14.5(309)2x+51×3=275(310)18x-5x-31=47(311)9x÷18=5(312)(6.8x+6.1)÷3=31.5(313)18x-39×0.3=8.1(314)2x-1.1=17.1(315)4x-9×13=31(316)7x+23x+2.1=86.1(317)11.2+7x=28.7(318)66÷x=3(319)1.5x+4x=99(320)1.7x+7.8x=114(321)(1.7x+4.2)÷5=3.9(322)5.9x-2.4x-2=43.5(323)2x+2×0.4=4.4(324)90÷x=30(325)5.2x-3x+4=23.8(326)14x-5x+29=101(327)12x+62×3=258(328)3(x+33)=183(329)4.9x+4x=71.2(330)x÷10=7(331)2.3x-1.6x+0.7=2.1(332)2(23x-16)=152(333)80-x=37(334)72x÷4=36(335)35+2x=85(336)1.5x+5.1x+3.4=56.2(337)47x-3x+1.2=45.2(338)6.9x+4.7x=116(339)54÷x=9(340)0.2x+4.2×3=18.2(341)x-4.1=1.4(342)1.1x=12.1(343)24x+15=207(344)(3.1x-7.6)÷2=8.6(345)18.4-0.4x=12.8(346)10x-4x+2=50(347)2.6x+4.4=14.8(348)0.9x=12.6(349)10(x-8)=190(350)(4.7x+9.1)÷6=11.7(351)89x-85x-1.8=2.6(352)6.1-x=2.5(353)57x+86x+1.1=58.3(354)9.9+3x=23.7(355)x+62=154(356)(11x-17)÷37=4(357)1.7x-1.3×12=3.1(358)39x÷6=13(359)1x+2.3×7=32.1(360)7.4x+9.3x-3.2=147.1(361)20x+10x-2.4=108.6(362)1.1x+5.3x=51.2(363)10x-3x=42(364)1.1+0.2x=14.9(365)24÷x=2(366)3x-0.3×10=3(367)0.8x-5.6=6.4(368)2x÷4=0.5(369)4.6x-5.6=3.6(370)8.6+x=18(371)35x+23x-1.1=155.5(372)x÷2=2.8(373)(18x-45)÷23=9(374)15.1-0.3x=1.9(375)2x+13x=75(376)6x-3x-16=50(377)7x+22×3=206(378)10.8-2.2x=4.2(379)x-17=27(380)9.3x-0.6x=43.5(381)12x+11x+41=271(382)0.7x+1.9=15.9(383)3x+4×13=148(384)(7x-8)÷16=10(385)88+x=164(386)(2.2x-4.4)÷33=0.2(387)83x-15=151(388)4.3x+0.4×39=32.8(389)2x-2.1=15.7(390)4.7x-3.4x-2.8=8.9(391)5.8-8x=1(392)0.9x=5.4(393)56+x=128(394)8x+5x+11=219(395)0.3x-3.6=3(396)129+5x=239(397)11(x+4)=132(398)16.9-3x=11.5(399)2(1.2x-4.2)=13.2(400)82-x=41(401)5x+9x+13=167(402)23x-2×39=60(403)3(0.3x+6.8)=48.3(404)85x+63x-0.8=162(405)3(0.3x-0.6)=35.1(406)0.8x-0.2×7=14.6(407)19÷x=3.8(408)x-52=31(409)84x-64x+0.2=4.2(410)13(0.2x+2.3)=48.1(411)x÷60=3(412)37x=18.5(413)x-6.6=2.6(414)8x-2×4=4.8(415)9.3x+8.7x+2.7=164.7(416)(7.5x-4.2)÷9=6.2(417)6-x=3.2(418)x+1.9=5.7(419)15x-4×17=37(420)1.2x+0.5×25=31.7(421)18.4-5.9x=6.6(422)83x-78x-3.9=1.1(423)(2x+13)÷19=3(424)29x-2.5=14.9(425)1.9x-1.2x+2.5=24.2(426)5x+3x=80(427)49+x=64(428)13x-10x+42=60(429)13x-11x+32=46(430)x+62=90(431)99-x=46(432)3(3.3x+9.5)=48.3(433)2(0.4x-3.1)=30.6(434)x-1.3=8.5(435)5x-3x-16=42(436)22x÷16=1.1(437)3.2x÷48=0.2(438)17x+3x=160(439)0.3x+0.2x-3.3=23.2(440)14.4-0.3x=9.3(441)9x-2x=28(442)71+3x=89(443)2.1x-1.2x+4.4=31.4(444)3.8x-3.2x=13.8(445)x÷14=1.3(446)19x+2x-17=109(447)2(2x+20)=104(448)15x÷6=2.5(449)89x+19x-1=31.4(450)0.2x÷6=0.4(451)0.3x+1.6×3=6.3(452)24-x=10(453)2.4+x=8.3(454)18.6÷x=0.2(455)12x-8x+19=63(456)40x-40×0.3=4(457)5.3+8.8x=22.9(458)(8.9x+9.5)÷32=2.8(459)0.9x-1.1×6=6.9(460)11x-52=47(461)x-1=6.4(462)5x+40=105(463)28x-9×0.7=2.1(464)42-x=29(465)7x÷10=1.4(466)30x÷90=2(467)2(13x-3)=124(468)18x=54(469)7x=19.6(470)9.1x-5.6x-3.1=24.9(471)48x=192(472)14.7-41x=2.4(473)8x+3.1=17.5(474)3x+12x=105(475)2.5x+2.1x+2=61.8(476)16.6-1.3x=4.9(477)x+86=134(478)23x+5×37=231(479)15x-4x+1.5=42.2(480)(8x-8)÷36=6(481)45x-5x-2.8=57.2(482)9-x=3.7(483)9.5+x=15.7(484)(0.2x+0.6)÷2=2.1(485)1.3x+1.2=11.6(486)46x÷8=2.3(487)0.9x-0.2x=17.5(488)3.5x+1.7x-0.8=103.2(489)(5x+49)÷32=2(490)6.7+x=12.9(491)12x-5x-21=56(492)0.3x=16.5(493)7x-3x=24(494)2(0.8x+3.8)=20.4(495)(9x+39)÷3=52(496)14.5-21x=6.1(497)7.8x+6.9x-1.4=175(498)(18x-34)÷5=22(499)5.1+2.1x=11.4(500)86x+25x+4=70.6(501)4.5+10x=11.5(502)184-46x=46(503)11x-34×0.2=9.7(504)x+6.6=13.1(505)9x-12=150(506)17x÷34=0.5(507)x+14=108(508)(18x-6)÷13=12(509)15.5-6x=4.1(510)5x+10×1.8=35.5(511)96-x=88(512)4.3x+0.8x=61.2(513)10x+2.6=21.6(514)0.4x-0.2×16=13.2(515)19x+6x-3.2=116.8(516)17x+12x+31=234(517)12(3x+3)=108(518)16.8+0.3x=30.3(519)57÷x=19(520)2(2x+10)=164(521)x-5=48(522)97x-45x-3.9=27.3(523)2x-5.5=12.7(524)x-71=25(525)3.9x-3.2x=11.9(526)14x-3x+34=56(527)18x-2x-34=110(528)5.7x+8.1x-0.5=68.5(529)2.7x+5=21.2(530)94x-37x-1.4=32.8(531)37x-5×1.8=9.5(532)18x+5×1.7=26.5(533)7x+4x=198(534)2(12x+10)=116(535)x+1.7=2.3(536)0.7x-0.4×21=9.8(537)4÷x=0.5(538)10x-4x+27=147(539)4.9x-4x-0.4=7.7(540)13x-8x=75參考答案(1)x=2(2)x=4(3)x=9(4)x=32(5)x=7(6)x=0.4(7)x=2(8)x=6(9)x=20(10)x=2(11)x=16(12)x=10.2(13)x=2.3(14)x=18(15)x=66(16)x=22(17)x=1.5(18)x=21(19)x=10(20)x=64(21)x=18(22)x=5.7(23)x=11(24)x=3(25)x=0.7(26)x=0.6(27)x=2(28)x=0.7(29)x=1(30)x=4.3(31)x=4(32)x=3(33)x=2(34)x=2(35)x=11(36)x=2(37)x=8.6(38)x=0.6(39)x=6.8(40)x=28(41)x=52(42)x=0.6(43)x=3.8(44)x=7(45)x=9(46)x=2(47)x=88(48)x=0.4(49)x=91(50)x=10(51)x=3(52)x=22(53)x=185(54)x=2(55)x=5.3(56)x=1.1(57)x=7(58)x=2(59)x=10(60)x=21(61)x=2(62)x=2.2(63)x=19(64)x=2(65)x=7(66)x=2.9(67)x=8(68)x=5(69)x=1.9(70)x=2(71)x=25(72)x=13(73)x=0.2(74)x=3(75)x=3.1(76)x=2(77)x=28(78)x=1.5(79)x=3.3(80)x=6(81)x=0.3(82)x=24(83)x=4.6(84)x=50(85)x=30(86)x=5(87)x=48(88)x=64(89)x=0.3(90)x=17(91)x=27(92)x=0.7(93)x=0.9(94)x=1.1(95)x=20(96)x=29(97)x=2.1(98)x=2(99)x=18(100)x=4(101)x=6(102)x=0.8(103)x=25(104)x=0.4(105)x=4(106)x=88(107)x=9(108)x=2(109)x=3(110)x=2.1(111)x=5.9(112)x=6(113)x=4(114)x=19(115)x=2(116)x=4(117)x=2(118)x=9(119)x=59(120)x=90(121)x=8(122)x=12(123)x=120(124)x=13(125)x=2(126)x=4.2(127)x=14(128)x=4(129)x=4(130)x=3(131)x=8(132)x=18(133)x=2(134)x=2(135)x=12(136)x=0.3(137)x=28(138)x=3(139)x=12(140)x=31(141)x=34(142)x=2(143)x=66(144)x=5(145)x=5(146)x=17(147)x=26(148)x=4(149)x=16(150)x=12.1(151)x=7(152)x=2(153)x=6(154)x=15(155)x=10(156)x=2.3(157)x=53(158)x=5(159)x=19(160)x=15.4(161)x=26(162)x=18(163)x=3(164)x=10(165)x=70(166)x=7(167)x=13(168)x=4(169)x=13(170)x=8(171)x=3.2(172)x=1.7(173)x=0.3(174)x=9(175)x=33(176)x=33(177)x=14(178)x=0.4(179)x=16(180)x=7(181)x=10(182)x=14(183)x=0.3(184)x=3(185)x=59(186)x=0.3(187)x=1.6(188)x=13(189)x=8(190)x=3(191)x=31(192)x=37(193)x=9(194)x=0.2(195)x=27(196)x=6(197)x=2.5(198)x=5(199)x=2(200)x=12(201)x=16(202)x=0.5(203)x=33(204)x=5(205)x=5(206)x=5.1(207)x=2(208)x=3.2(209)x=18(210)x=16.2(211)x=8(212)x=7(213)x=2(214)x=12(215)x=24(216)x=60(217)x=1.1(218)x=75(219)x=36(220)x=27(221)x=0.3(222)x=10(223)x=5(224)x=37(225)x=11(226)x=2(227)x=1.4(228)x=5.4(229)x=2.2(230)x=0.2(231)x=0.9(232)x=1.5(233)x=0.6(234)x=13(235)x=20(236)x=5(237)x=2(238)x=28(239)x=2(240)x=8(241)x=0.8(242)x=4.2(243)x=6(244)x=5(245)x=6(246)x=0.7(247)x=7(248)x=4(249)x=0.3(250)x=13(251)x=9(252)x=15(253)x=93(254)x=89(255)x=12(256)x=2(257)x=0.5(258)x=1.6(259)x=2(260)x=9.9(261)x=66(262)x=1.3(263)x=17(264)x=1.5(265)x=6.3(266)x=12(267)x=3(268)x=3(269)x=5(270)x=1.8(271)x=7(272)x=6(273)x=16(274)x=10(275)x=6(276)x=26(277)x=8(278)x=26(279)x=21(280)x=12(281)x=25(282)x=0.5(283)x=1.1(284)x=11(285)x=4(286)x=1.4(287)x=168(288)x=7(289)x=93(290)x=16(291)x=7(292)x=11(293)x=21(294)x=36(295)x=0.4(296)x=1.9(297)x=0.9(298)x=11(299)x=19(300)x=6(301)x=66(302)x=3(303)x=2.1(304)x=0.4(305)x=2(306)x=10(307)x=5(308)x=5(309)x=61(310)x=6(311)x=10(312)x=13(313)x=1.1(314)x=9.1(315)x=37(316)x=2.8(317)x=2.5(318)x=22(319)x=18(320)x=12(321)x=9(322)x=13(323)x=1.8(324)x=3(325)x=9(326)x=8(327)x=6(328)x=28(329)x=8(330)x=70(331)x=2(332)x=4(333)x=43(334)x=2(335)x=25(336)x=8(337)x=1(338)x=10(339)x=6(340)x=28(341)x=5.5(342)x=11(343)x=8(344)x=8(345)x=14(346)x=8(347)x=4(348)x=14(349)x=27(350)x=13(351)x=1.1(352)x=3.6(353)x=0.4(354)x=4.6(355)x=92(356)x=15(357)x=11(358)x=2(359)x=16(360)x=9(361)x=3.7(362)x=8(363)x=6(364)x=69(365)x=12(366)x=2(367)x=15(368)x=1(369)x=2(370)x=9.4(371)x=2.7(372)x=5.6(373)x=14(374)x=44(375)x=5(376)x=22(377)x=20(378)x=3(379)x=44(380)x=5(381)x=10(382)x=20(383)x=32(384)x=24(385)x=76(386)x=5(387)x=2(388)x=4(389)x=8.9(390)x=9(391)x=0.6(392)x=6(393)x=72