五年級數(shù)學(方程)專項練習題及答案匯編(1)5x-14×9=69(2)72x-62x+4.2=8.2(3)7.2x+2.7x=59.4(4)5x÷2=3(5)19-x=14(6)4.7+2x=22.5(7)139-11x=62(8)4.7x+7.1x-3.2=91.2(9)123-32x=59(10)7x+15x+4=180(11)2(1.1x-6.7)=43.8(12)(4x+8)÷16=3(13)1.7x-1.2x+1.4=20.9(14)87x+70x+3.6=35(15)16x-2x-16=26(16)14x-8x+3.3=22.5(17)2.3x+1.3=15.1(18)13.8+4.2x=22.2(19)0.5x÷11=1.5(20)x÷5=2.6(21)6x-3x=39(22)5x+35=155(23)39x=15.6(24)3x-4×17=103(25)8x-2x+4=46(26)12x-4x-5=51(27)7x+4x=55(28)14x-12x+38=60(29)3x+2=10.4(30)5.6+0.3x=22.7(31)2.8x+1.8=18.6(32)6x+4×28=154(33)6.2+61x=24.5(34)65x-10x+0.8=72.3(35)0.3x-1.5×2=7.5(36)8.7x-8.1x=6.6(37)8x-6x+1.9=15.7(38)1.9x-1.4x+2=4.5(39)126-3x=51(40)8.7-x=6.8(41)30+x=49(42)8x-3x=10(43)49+6x=235(44)8(6x-7)=136(45)11x+97x+1.6=109.6(46)12.6÷x=1.4(47)3(0.7x-6.6)=45.3(48)8x÷12=2(49)89+x=138(50)0.2x-2.8=9.6(51)68x-29x+1.3=36.4(52)3.3+0.5x=19.8(53)2(8x-6)=68(54)x-21=43(55)147÷x=49(56)23x-2.3=4.6(57)11.3+2.7x=30.2(58)x+9.8=18.5(59)1.9x=13.3(60)x÷4=1(61)60-x=58(62)6x+4x-25=245(63)12x-7x=65(64)0.4x+0.3×34=19.8(65)16.7-25x=4.2(66)15x-9x+44=56(67)(6x+42)÷8=21(68)41x-10=113(69)14.4+4x=28.8(70)1.2x+2.6×6=28.8(71)8(x-4)=192(72)20x-5×22=50(73)67x-63x-1.4=1(74)12.1-2x=11.3(75)x-22=24(76)5x+6x-42=101(77)2x+48×4=294(78)10x+7×2.5=37.5(79)7x-47×2=102(80)(3.6x-2.3)÷25=2.5(81)43x=172(82)15x-11x+35=71(83)5x÷15=0.4(84)4.4x+1.2x+0.6=84.6(85)5x-4=11(86)15x-10x+33=73(87)13x-6x-6=64(88)16x-6x=90(89)4.7-x=2.4(90)7.4x-2.7x-0.4=32.5(91)6x+9x-24=141(92)6x+4.1=23.3(93)27x-5.4=10.8(94)4x+8x=216(95)4.8x-2.8x=24(96)x+61=101(97)118+4x=202(98)(11x+7)÷3=17(99)91x-70x+1.4=22.4(100)15x-5x=40(101)0.6x=7.2(102)0.4x+4.1x-2=65.5(103)0.5x=6(104)5x-5.7=2.8(105)55-x=26(106)7.6-x=3.4(107)x+6.6=7.4(108)44x-35x-3.8=3.4(109)x+51=110(110)26x+5.5=18.5(111)3x-0.9x-1.4=28(112)30x÷50=3(113)3.4x+5.8x-3.1=144.1(114)17x=17(115)10.6+20x=26.6(116)197-11x=153(117)91x-5.2=13(118)107+13x=250(119)15x÷35=3(120)x÷6=11(121)3.7x+6x-1.8=17.6(122)x÷4=25(123)19x-4×3=3.2(124)x÷3=4(125)129-2x=125(126)2.9x+3.2=20.6(127)35x÷7=1.5(128)8.8x-1.4x-2.1=34.9(129)(5.7x+6.6)÷20=0.9(130)0.6x=4.2(131)66x-54x+0.8=10.4(132)13x+7×9=258(133)56-x=26(134)3.1+x=6.6(135)2.4x-0.8×18=2.4(136)7(0.8x+0.3)=24.5(137)7.1x-1.8x-0.7=47(138)x-0.5=7.3(139)1.1x÷22=0.6(140)6.9x-6.4x=4.5(141)14x-17=109(142)1.5x=9(143)8x=8.8(144)10.1-0.9x=8.3(145)3(0.3x-5.4)=20.7(146)x-0.5=8.2(147)3x+5×0.9=12(148)(10x-14)÷2=38(149)2(2x+29)=82(150)5.9x=17.7(151)x+4.3=6.7(152)3.7x-0.5x+2.5=34.5(153)17x+11x=252(154)52x+64x-4.8=76.4(155)x-22=52(156)8.1x+8.4x+2.3=167.3(157)0.4x+3.3×3=17.1(158)28x+96x+4.2=29(159)6x+5x+22=121(160)3.3x-2.7x+0.3=15.3(161)12(2.5x-3.7)=15.6(162)2(x+39)=102(163)(5.2x-8.2)÷2=40.1(164)6.7-x=6(165)3.8x+1.3x=61.2(166)(13x-33)÷41=3(167)143+4x=259(168)3x+4.5=22.5(169)8x-6×0.3=17.4(170)3x+2.3x-3.8=171.1(171)2.4x-0.3x=31.5(172)x-0.7=8.8(173)4(1.2x+8.8)=49.6(174)7(2x+4)=196(175)12+5x=19.5(176)x-68=23(177)(x+28)÷6=5(178)5x=75(179)(2x+36)÷15=4(180)96x÷32=6(181)25x=17.5(182)(14x+16)÷15=16(183)41x+3x-2.6=76.6(184)2(0.3x+9)=22.2(185)4x=16.4(186)4(4x-3)=180(187)9+2x=19.2(188)4(0.7x+2.5)=46.4(189)x-56=11(190)3x-43=14(191)4x-4.7=12.9(192)11x+5.2=21.7(193)19.1-55x=8.1(194)39x+24x-4.1=153.4(195)(0.4x+0.2)÷6=1.3(196)61x-5.6=12.7(197)5(4x+4)=100(198)x-0.2=3.5(199)x-5.8=2.2(200)x+6=8.4(201)x÷35=0.3(202)28x+8×10=136(203)66-x=48(204)(1.6x-8.8)÷20=0.2(205)35x÷14=1(206)7x=14(207)41x+13×1.4=26.4(208)16x-7×8=24(209)114+2x=122(210)0.3x+5.8=19.3(211)x+89=177(212)19x+5x+29=221(213)69x+36x-0.8=114.7(214)4x÷16=0.5(215)43x+13x+4.9=128.1(216)55+67x=189(217)8÷x=0.4(218)6x+2x+1.7=71.3(219)22x÷44=4(220)4.5x+0.5x+1.9=86.9(221)0.6x+2.6=20.6(222)5x+11x=288(223)0.2x+0.5×6=6.2(224)16+0.8x=35.2(225)x÷2=16(226)(5.9x+1.7)÷23=1.1(227)3x+22×0.6=27.9(228)10x+2x+40=76(229)58+x=146(230)16.8-5.7x=5.4(231)(8x-22)÷2=77(232)7x-3x-37=63(233)7.3-x=1.9(234)4.5+x=14.1(235)6x+52x-3.3=54.7(236)145÷x=5(237)13x+9x+25=201(238)17.8+3x=30.7(239)(9.6x-3.9)÷3=17.9(240)4.2x+2.6x=68(241)39x+16×0.5=15.8(242)13x-4x=99(243)18.4-54x=2.2(244)13x+8x=84(245)19x-9x=40(246)8.1+0.5x=24.6(247)5x+6x=231(248)1x+1.3x+2.4=124.3(249)11x-2x-15=21(250)x-2.3=2.4(251)16.7+3x=20.3(252)2(2x+40)=128(253)(3.9x-9.9)÷33=1(254)0.7x=2.8(255)90+x=189(256)6.9x-2.6x=47.3(257)86-x=37(258)45x+14×0.8=24.7(259)1.1x+2.2×6=31.9(260)22x-40=26(261)8.6x+2.3x=65.4(262)x+21=50(263)2x÷38=3(264)x÷29=0.5(265)54÷x=18(266)1.2x-0.5x-2.3=18(267)9(x-20)=126(268)6.3x-2.9x=17(269)94-x=21(270)13x+32x+2.6=47.6(271)36x+7×0.4=13.6(272)37x+38=149(273)7.4x-4.8x+1.3=14.3(274)6x+16×1=29.8(275)10x+29=179(276)11.1+0.9x=13.8(277)70÷x=35(278)6x=5.4(279)0.5x-0.3×39=4.3(280)6.1+x=11.4(281)0.9x+0.5×29=21.7(282)x÷5=2.9(283)28x-4×1.7=12.8(284)1.1x+3.2=18.6(285)4.5x-0.2×40=10(286)0.3x-3.7=3.8(287)(12x+2)÷10=29(288)53+x=56(289)52x-25x-4.1=22.9(290)(9x-6)÷35=6(291)2x-0.2x+4.2=90.6(292)6x-29×0.4=4.6(293)(5x+38)÷18=6(294)26x+16=198(295)x÷16=8(296)195-3x=183(297)13x-2x=77(298)1x÷34=0.5(299)26x=15.6(300)9x-5x+49=117(301)7.6x+6.9x-1.8=99.7(302)150÷x=30(303)x+81=151(304)3x+55=64(305)14x-7x+36=71(306)9.9+x=17.1(307)150÷x=10(308)6x-3x-4.5=3.3(309)5.5x+1.9x+2.6=98.8(310)2.7x-2.9×3=2.1(311)x+7=8.4(312)18x+3x-1.2=66(313)1.9+x=11.6(314)3(0.7x-4)=17.4(315)8.5-1.2x=1.3(316)8x-30×0.6=2(317)x÷5=1.8(318)(11x+40)÷4=65(319)0.5x=14(320)x÷10=1.4(321)9x÷2=36(322)3x+4x=98(323)7.6-x=1.9(324)4x÷64=0.2(325)2(0.6x-3.4)=47.2(326)35x÷15=7(327)12.6÷x=2.1(328)7x-2x-38=92(329)29x-23x-0.2=14.8(330)11.2÷x=1.6(331)109+2x=185(332)x÷3=11(333)2x+4x+24=246(334)18x+61×3=255(335)38x=152(336)2.1x-2.9×5=2.3(337)x+3.5=3.9(338)86x-30x-3=25(339)4.3+8.1x=20.5(340)10.6-0.6x=6.4(341)6x+7x-47=70(342)8(0.3x+0.4)=17.6(343)5x+10x+39=84(344)19(3x+4)=190(345)95-x=37(346)x+13=24(347)2.5x-0.5x=76(348)x÷37=4(349)x-4.2=2.2(350)19x-42=15(351)14x+57=155(352)0.2x+1=4.4(353)12.1-0.2x=4.7(354)19x+3.7=20.8(355)9.7x+5.4x+3.5=48.8(356)1.6x+4.3=13.9(357)19x+27×0.2=24.4(358)5x-24×0.2=14.7(359)13x+5x-33=237(360)4x+41=97(361)51x-38x-4=9(362)3(14x-31)=159(363)x-14=69(364)23x+36×4=328(365)3x-1.7x+4=46.9(366)(0.7x+7.8)÷13=1.3(367)2.3x+0.3x=57.2(368)x÷99=2(369)82x+91x-4.5=82(370)(1.2x-4.8)÷24=0.3(371)x+14=16(372)0.2x+1.4=5.4(373)5.7x-3.1=8.3(374)15x+2×67=269(375)6x=198(376)x-39=35(377)7.7x-4.3x-3.6=27(378)(6.9x-1.5)÷12=3.9(379)1.5x+0.2x=44.2(380)6.8x+3.3x-4.5=96.5(381)1x+0.7×17=19.9(382)16x-19=141(383)1.2x÷6=3(384)2(5.3x+7)=35.2(385)10(x+6)=200(386)18(0.4x-9.9)=45(387)4x+12=192(388)48x+5x-3.5=97.2(389)5.9x-2.9x-2.4=3.6(390)26+20x=126(391)x+97=161(392)2x-2×13=22(393)3(0.3x-8.2)=5.1(394)9x+10x-1.6=38.3(395)3(26x-4)=144(396)5x+6x=110(397)14.9-0.2x=9.9(398)34+x=128(399)0.6x÷2=0.9(400)5.4x+7.2x-4.4=58.6(401)43+x=82(402)2x=16(403)2(0.2x-0.3)=13.4(404)9x+15x-17=247(405)155-5x=135(406)13x-11×5=127(407)6x-4x-45=21(408)0.3x-0.4×8=3.7(409)93+x=152(410)12x-8x=36(411)3.4x÷51=0.2(412)17x+1.2=19.9(413)3x+46x+4.1=97.2(414)5.3x-4.2x-4.9=13.8(415)(16x-24)÷8=17(416)3.3x+1.6x=49(417)7x+4x-33=231(418)4.4+x=6.2(419)3x+8x=165(420)(3x-14)÷8=2(421)(18x-14)÷2=110(422)x+3.6=11(423)x+4=16(424)1.1x-1.9=1.4(425)12x+8x-46=274(426)2(1.8x+9.1)=43.4(427)x-1.1=1.3(428)(3.8x-7.5)÷5=9.9(429)x÷73=2(430)16.2-6x=3(431)145-5x=45(432)2x=2.6(433)74x+17x+0.5=18.7(434)6.2-15x=3.2(435)12x÷24=0.7(436)x+2.6=7.3(437)7.3x+6.7x=168(438)13.5÷x=0.3(439)(4.4x-5.2)÷4=6.4(440)10x-3x-22=55(441)18x-8x+39=59(442)15x-3x-29=115(443)56x+3.7=14.9(444)52x÷26=4(445)34x-45=23(446)1.3+3x=4.9(447)7x+16×4=127(448)1.7x-2.9=2.2(449)9x-1.5=6.6(450)2.1x-1.7x+4.1=18.5(451)3.9÷x=1.3(452)12x+2.9=7.7(453)18.8-3.9x=3.2(454)42÷x=7(455)5.7÷x=0.3(456)7.8÷x=0.6(457)(1.1x+7.5)÷3=5.8(458)19x-4x=45(459)0.2x÷3=3.8(460)4.7x-2.4x+1.7=24.7(461)16.2-10x=10.2(462)15x+10x-32=43(463)14x-6x+2.7=29.9(464)2.6x-0.4×10=1.2(465)(9x-18)÷12=9(466)6.6+6.3x=19.2(467)15x+8x+25=232(468)2.6+x=9.8(469)1.4x-5.9=5.3(470)9x-18×0.2=7.2(471)5.4x÷4=2.7(472)x-13=64(473)18x+16x+41=177(474)11.3-18x=5.9(475)2(0.4x+7)=24.4(476)x+5.7=8.6(477)149-69x=11(478)1.5x-1.2x-3.9=10.2(479)4x-4×1.4=5.2(480)x-3.3=5.3(481)x÷3=1.7(482)9.9x+2.3x+2.2=87.6(483)3(2x+2)=24(484)8x=12.8(485)15.9-10x=10.9(486)5.4x+1.6x-2.4=88.6(487)11x=66(488)6÷x=3(489)0.5x-2.5×7=1.5(490)2x=170(491)11x+18=194(492)22÷x=2(493)5x-2×4=82(494)2x÷7=2(495)16.5-0.7x=14.4(496)0.9x+0.4×35=16.7(497)11x-3x+41=73(498)54x-4.4=6.4(499)9.6-x=3.3(500)(9.5x+4.2)÷17=3.6(501)8x-3×1.6=15.2(502)169+2x=263(503)(6x+46)÷2=83(504)25x-15x+4.1=23.1(505)36x-22x-0.4=3.8(506)2x+0.3×19=25.7(507)x÷2=2.5(508)59x-56=121(509)7.2+x=12.7(510)95x-31x-2.5=42.3(511)9x+27x+0.3=129.9(512)1.2x-5.5=2.9(513)36+x=128(514)4.9x-4.7x=3.4(515)3(0.7x+2.1)=25.2(516)6.1-x=1.8(517)x-37=31(518)4x=104(519)6x÷90=0.2(520)4.5x+5.2x=106.7(521)56÷x=14(522)0.2x÷19=0.6(523)3(3x-48)=126(524)1.9x-1.5=4.2(525)16x-1.1=8.5(526)4x+25×5=269(527)(7x-27)÷44=4(528)20x-7×3=79(529)(1.5x+1.4)÷2=5.2(530)4(x+25)=124(531)1x+3.2x+4.3=126.1(532)3x+2.9x+2.1=96.5(533)13x-13=117(534)10(6x-48)=120(535)8.5+x=17.6(536)17.6-0.3x=10.4(537)95-x=40(538)4x=128(539)6.8-x=4.6(540)(x+8)÷5=2.2參考答案(1)x=39(2)x=0.4(3)x=6(4)x=1.2(5)x=5(6)x=8.9(7)x=7(8)x=8(9)x=2(10)x=8(11)x=26(12)x=10(13)x=39(14)x=0.2(15)x=3(16)x=3.2(17)x=6(18)x=2(19)x=33(20)x=13(21)x=13(22)x=24(23)x=0.4(24)x=57(25)x=7(26)x=7(27)x=5(28)x=11(29)x=2.8(30)x=57(31)x=6(32)x=7(33)x=0.3(34)x=1.3(35)x=35(36)x=11(37)x=6.9(38)x=5(39)x=25(40)x=1.9(41)x=19(42)x=2(43)x=31(44)x=4(45)x=1(46)x=9(47)x=31(48)x=3(49)x=49(50)x=62(51)x=0.9(52)x=33(53)x=5(54)x=64(55)x=3(56)x=0.3(57)x=7(58)x=8.7(59)x=7(60)x=4(61)x=2(62)x=27(63)x=13(64)x=24(65)x=0.5(66)x=2(67)x=21(68)x=3(69)x=3.6(70)x=11(71)x=28(72)x=8(73)x=0.6(74)x=0.4(75)x=46(76)x=13(77)x=51(78)x=2(79)x=28(80)x=18(81)x=4(82)x=9(83)x=1.2(84)x=15(85)x=3(86)x=8(87)x=10(88)x=9(89)x=2.3(90)x=7(91)x=11(92)x=3.2(93)x=0.6(94)x=18(95)x=12(96)x=40(97)x=21(98)x=4(99)x=1(100)x=4(101)x=12(102)x=15(103)x=12(104)x=1.7(105)x=29(106)x=4.2(107)x=0.8(108)x=0.8(109)x=59(110)x=0.5(111)x=14(112)x=5(113)x=16(114)x=1(115)x=0.8(116)x=4(117)x=0.2(118)x=11(119)x=7(120)x=66(121)x=2(122)x=100(123)x=0.8(124)x=12(125)x=2(126)x=6(127)x=0.3(128)x=5(129)x=2(130)x=7(131)x=0.8(132)x=15(133)x=30(134)x=3.5(135)x=7(136)x=4(137)x=9(138)x=7.8(139)x=12(140)x=9(141)x=9(142)x=6(143)x=1.1(144)x=2(145)x=41(146)x=8.7(147)x=2.5(148)x=9(149)x=6(150)x=3(151)x=2.4(152)x=10(153)x=9(154)x=0.7(155)x=74(156)x=10(157)x=18(158)x=0.2(159)x=9(160)x=25(161)x=2(162)x=12(163)x=17(164)x=0.7(165)x=12(166)x=12(167)x=29(168)x=6(169)x=2.4(170)x=33(171)x=15(172)x=9.5(173)x=3(174)x=12(175)x=1.5(176)x=91(177)x=2(178)x=15(179)x=12(180)x=2(181)x=0.7(182)x=16(183)x=1.8(184)x=7(185)x=4.1(186)x=12(187)x=5.1(188)x=13(189)x=67(190)x=19(191)x=4.4(192)x=1.5(193)x=0.2(194)x=2.5(195)x=19(196)x=0.3(197)x=4(198)x=3.7(199)x=8(200)x=2.4(201)x=10.5(202)x=2(203)x=18(204)x=8(205)x=0.4(206)x=2(207)x=0.2(208)x=5(209)x=4(210)x=45(211)x=88(212)x=8(213)x=1.1(214)x=2(215)x=2.2(216)x=2(217)x=20(218)x=8.7(219)x=8(220)x=17(221)x=30(222)x=18(223)x=16(224)x=24(225)x=32(226)x=4(227)x=4.9(228)x=3(229)x=88(230)x=2(231)x=22(232)x=25(233)x=5.4(234)x=9.6(235)x=1(236)x=29(237)x=8(238)x=4.3(239)x=6(240)x=10(241)x=0.2(242)x=11(243)x=0.3(244)x=4(245)x=4(246)x=33(247)x=21(248)x=53(249)x=4(250)x=4.7(251)x=1.2(252)x=12(253)x=11(254)x=4(255)x=99(256)x=11(257)x=49(258)x=0.3(259)x=17(260)x=3(261)x=6(262)x=29(263)x=57(264)x=14.5(265)x=3(266)x=29(267)x=34(268)x=5(269)x=73(270)x=1(271)x=0.3(272)x=3(273)x=5(274)x=2.3(275)x=15(276)x=3(277)x=2(278)x=0.9(279)x=32(280)x=5.3(281)x=8(282)x=14.5(283)x=0.7(284)x=14(285)x=4(286)x=25(287)x=24(288)x=3(289)x=1(290)x=24(291)x=48(292)x=2.7(293)x=14(294)x=7(295)x=128(296)x=4(297)x=7(298)x=17(299)x=0.6(300)x=17(301)x=7(302)x=5(303)x=70(304)x=3(305)x=5(306)x=7.2(307)x=15(308)x=2.6(309)x=13(310)x=4(311)x=1.4(312)x=3.2(313)x=9.7(314)x=14(315)x=6(316)x=2.5(317)x=9(318)x=20(319)x=28(320)x=14(321)x=8(322)x=14(323)x=5.7(324)x=3.2(325)x=45(326)x=3(327)x=6(328)x=26(329)x=2.5(330)x=7(331)x=38(332)x=33(333)x=37(334)x=4(335)x=4(336)x=8(337)x=0.4(338)x=0.5(339)x=2(340)x=7(341)x=9(342)x=6(343)x=3(344)x=2(345)x=58(346)x=11(347)x=38(348)x=148(349)x=6.4(350)x=3(351)x=7(352)x=17(353)x=37(354)x=0.9(355)x=3(356)x=6(357)x=1(358)x=3.9(359)x=15(360)x=14(361)x=1(362)x=6(363)x=83(364)x=8(365)x=33(366)x=13(367)x=22(368)x=198(369)x=0.5(370)x=10(371)x=2(372)x=20(373)x=2(374)x=9(375)x=33(376)x=74(377)x=9(378)x=7(379)x=26(380)x=10(381)x=8(382)x=10(383)x=15(384)x=2(385)x=14(386)x=31(387)x=45(388)x=1.9(389)x=2(390)x=5(391)x=64(392)x=24(393)x=33(394)x