五年級數(shù)學(方程)習題及答案匯編

五年級數(shù)學(方程)習題及答案匯編(1)(2.7x-8)÷28=0.1(2)6(2x-49)=114(3)6x÷58=3(4)17x+4×3=15.4(5)0.2x+2.4=8.4(6)2.5+3.3x=22.3(7)2x-2×40=76(8)0.9x+4.5=9.9(9)95x+67x-2=127.6(10)(9x+9)÷5=27(11)5x+4x-43=263(12)x-8=48(13)17x-7x=50(14)10(4x+7)=150(15)5x-3x=20(16)x÷2=3.2(17)25x-12×1.5=2(18)16x+4x+4.1=56.1(19)14.2-15x=2.2(20)96x-54x-1.9=19.1(21)9.3x-5.9x+2.7=36.7(22)71x-34x+4=44.7(23)17x+4.6=13.1(24)1.2x+0.5x+3.9=128(25)0.6x-3.6×3=9(26)0.9x=18(27)x-2.6=5.6(28)(5x+6)÷2=8(29)19x+7×1.2=12.2(30)6.2+x=8.4(31)10x=50(32)9.1+28x=28.7(33)110-2x=50(34)x+9.1=15.6(35)1.7x+0.4×13=23.9(36)3(1.3x+2.2)=33.9(37)2(5x+10)=60(38)3(2.4x-4.5)=22.5(39)18-6x=7.2(40)2(0.5x-6.1)=18.8(41)12x+3x+15=240(42)5x+6x=264(43)33x+44×0.2=18.7(44)16x-11x+25=40(45)3.1x-2.2x-2.7=18(46)6x-2x+7=55(47)x÷7=0.6(48)19x-26=145(49)13x+19x+28=252(50)85+x=173(51)2x=198(52)2x-6×14=58(53)0.2x+4.1=7.7(54)6.8-x=2.5(55)0.5x+0.4×7=16.3(56)3x-62×2=26(57)29x+2×24=106(58)7.7x-1.4x+3.8=22.7(59)x-3=29(60)15x+9x+3=291(61)12x+8x+0.2=56.2(62)2x-14×4=42(63)10x-47=73(64)77+15x=212(65)(12x-20)÷31=4(66)68x+85x-3.2=134.5(67)55x-48x+2.2=9.2(68)16x÷32=4(69)2.3x+7.8x-1.3=79.5(70)6x-32×4=52(71)91-x=47(72)x+8=12.1(73)x+43=95(74)x÷2=1.8(75)17x+16x+34=331(76)5x+5.3=18.8(77)25x=17.5(78)8-x=6.7(79)156+45x=246(80)3x-2.9=1.9(81)5x+2×3.4=7.8(82)(2.4x-7.2)÷2=19.2(83)71x-32x+0.3=35.4(84)2(0.3x+0.9)=3(85)1.2x-5.8=5(86)9.7x+8.7x=165.6(87)1.7x-1.5×9=5.2(88)4x-24=28(89)30x-2×3.8=10.4(90)x-0.3=5.7(91)0.9x-1.7=17.2(92)84-x=76(93)195-4x=59(94)2.1x-0.5x+1.6=12.8(95)66x+61x+3.1=41.2(96)5x=7(97)30x+38x+0.3=136.3(98)x÷5=3.6(99)130÷x=13(100)16.5-4x=8.9(101)38x÷4=19(102)4(4x-2)=136(103)4.9+0.2x=22.5(104)11.2÷x=0.7(105)7x-11×2=139(106)(5.3x+7.1)÷9=10.8(107)6(1.8x+1.3)=29.4(108)44x+1.9=15.1(109)8.2x+5.9x-0.6=41.7(110)2(2.5x-8)=29(111)x÷8=16(112)0.3x÷30=0.6(113)1.4x+5.2=12.2(114)106-2x=86(115)13.3+4x=23.3(116)(4x+14)÷22=1(117)(9.8x+2.1)÷3=30.1(118)x-2.3=6.1(119)9.2x-7.1x=14.7(120)12x+63×3=213(121)1.5x+0.9×22=22.8(122)4x+2×97=362(123)6x-2x=40(124)7.1x-0.7x-1.1=18.1(125)3x÷66=0.2(126)2(0.6x-2.4)=26.4(127)24÷x=6(128)3.7x=11.1(129)10x+9x-10=351(130)87x+52=226(131)17+0.4x=19.4(132)17x-6x-26=95(133)5x+3x=192(134)2.1x÷28=0.6(135)46x+8x+3.7=111.7(136)9x+10x-22=111(137)3x-2.8x=1.8(138)16.4-31x=10.2(139)7x÷56=3(140)24x+22x+1.7=47.7(141)x-0.9=8.3(142)0.8x÷4=3.6(143)4.3x+0.2x+4.6=22.6(144)6.6÷x=2.2(145)6.3x-2x-4.4=8.5(146)0.5x+5.7x=62(147)5.9-x=1.5(148)13x-1.4=10.3(149)5x-3×3.7=8.9(150)6.2+0.7x=17.4(151)5x+4.9=23.9(152)19+2x=35.2(153)13.5-2.3x=2(154)163-42x=79(155)4.9x+2.6=22.2(156)0.8x-0.7×2=7.4(157)14x+18x+27=123(158)10x-7x+16=28(159)34+12x=82(160)15x+16x=186(161)12x+17x-43=131(162)(10x+3)÷7=39(163)(4x-48)÷16=1(164)189-3x=93(165)12x+5×3.3=24.9(166)13(0.4x-5.1)=27.3(167)28+x=97(168)8+x=93(169)3+x=98(170)7x+3.7=12.1(171)4x=17.6(172)5(x+8)=150(173)7.3x-6.1x+4.9=10.9(174)3.2x÷4=4.8(175)21(0.4x-6.3)=27.3(176)7.5x+1.7x=64.4(177)21x+8x+0.8=55.9(178)9x+17x-27=77(179)2.4x=12(180)11.2-0.2x=1.6(181)4.5+x=7(182)6x+15x+42=147(183)4x+6×5=194(184)(16x+23)÷9=15(185)6.9+2.2x=17.9(186)42÷x=2(187)(4.2x+2.2)÷20=2(188)x-22=52(189)42x÷24=7(190)12x-2x-12=68(191)12x÷66=2(192)30x=9(193)0.4x=4(194)7x-5x=28(195)11x+39x-2.7=77.3(196)14x÷2=42(197)4.3x-1.3×8=6.8(198)8x-2.5=12.7(199)1.8x÷45=0.2(200)(8.6x-9.6)÷18=0.9(201)67-x=42(202)5.3x-2.2x+1.4=20(203)6.1+x=15.3(204)0.5x-4.2=14.3(205)47-x=19(206)13+56x=125(207)x÷8=2.4(208)1.9x-0.3x+2.5=42.5(209)110÷x=10(210)5x-2x-21=42(211)2(2x+22)=84(212)7x+43=127(213)8.2x-3.7x=36(214)9.9x+0.6x+4.6=25.6(215)(2.8x-5.6)÷28=1.4(216)x+8.8=16.7(217)(7.1x+1)÷13=3.9(218)18÷x=0.4(219)2(16x+3)=134(220)1.9x+1.1x=51(221)11.1+4x=24.7(222)87x-3.7=13.7(223)8.7x+1.2x+0.2=69.5(224)4(6x-12)=120(225)4.5x-0.5×8=14(226)2(3x-18)=24(227)6x=13.8(228)12+9x=192(229)7x+21=126(230)6.2-0.4x=4.6(231)2x-2×60=76(232)1.3x+3=17.3(233)2x=52(234)(4.3x+7.5)÷2=10.2(235)16.2÷x=2.7(236)x+83=94(237)22x-29=103(238)(2x+34)÷6=15(239)11x+26=136(240)7x+3×4.2=28(241)29x=8.7(242)4.5x=13.5(243)5.7x-4.8x=5.4(244)52+10x=222(245)18x-22=158(246)2.8x+0.4×22=14.4(247)2(2.3x-2.2)=9.4(248)5.6x+2.3x=118.5(249)2x-1.7=7.5(250)9x-5x+25=93(251)15x+18×0.4=26.7(252)1.2x-0.6×13=4.2(253)4.4x-2x-3.2=11.2(254)1.1x=4.4(255)0.5x+0.2×27=21.4(256)x+4.3=7.2(257)27x+62x-0.8=61.5(258)12x-5x=28(259)7x-3x+38=142(260)2x-4×1.9=1.4(261)10x=20(262)1.4x-0.6x=22.4(263)(16x+37)÷23=3(264)8x-2x-5=79(265)3.3-x=2.4(266)x÷53=2(267)49x-9x-0.3=75.7(268)6.4x+3.9x+2.2=43.4(269)(8x-19)÷11=15(270)24+3x=204(271)94x-44x+3.6=43.6(272)12+5x=23(273)13.3+0.9x=15.1(274)4.8x÷9=1.6(275)5.7-x=2.2(276)20(x+6)=200(277)42x-37=131(278)192-24x=144(279)x÷26=2(280)x-35=61(281)2x-42=54(282)2(4x+7)=150(283)x+79=96(284)18x-6x=48(285)x÷3=44(286)(4x-29)÷3=9(287)3(22x-29)=111(288)1.5x-0.4x-1.3=68(289)4x+6.7x-4.1=49.4(290)8x+56=72(291)x÷11=10(292)1.8+x=7.2(293)2.4x+1.9x=141.9(294)44x=132(295)88÷x=22(296)0.2x÷11=1.6(297)15.4-0.5x=1.9(298)19x-6x-33=84(299)0.8x-0.4x=10.4(300)x÷9=2(301)18÷x=6(302)x÷6=2.3(303)7x-4x+48=96(304)0.7x+5.4=24.3(305)75x+4x-2.7=52.6(306)5.7+0.4x=18.9(307)6x÷2=4.5(308)53+x=142(309)2(1.5x+2.7)=41.4(310)x-1.3=3.2(311)83+x=118(312)(x+23)÷18=2(313)3.7x+2.8x+4.5=108.5(314)(2.7x-8.1)÷21=0.9(315)1x+3.2x=33.6(316)4.2x-0.7x-2.8=32.2(317)x÷64=2(318)27x-7x-0.4=71.6(319)17.3-0.3x=9.8(320)9.4x+6.5x-4=75.5(321)79-x=69(322)1.7x-0.2×25=13.7(323)8.3-x=2.4(324)4.8x-1.6x=64(325)160-11x=105(326)3x+8x-33=198(327)15.7-5x=2.2(328)93x-19=167(329)13x+15=67(330)x+96=167(331)60x-36x+4.2=16.2(332)128-14x=72(333)(0.9x-1.1)÷17=0.2(334)73x=146(335)69x-35x-3.8=23.4(336)21x÷84=2(337)8x+6.3x+2.1=45(338)19.1-7.8x=3.5(339)3x+13x+37=149(340)4.3x+5.3x+2.8=127.6(341)72+6x=270(342)x+2.9=11.5(343)15(1.2x-0.7)=43.5(344)20x+11x-2.3=65.9(345)18x÷36=0.4(346)43+x=83(347)4.4x+5.4x=39.2(348)x-23=54(349)2x-2.3=9.7(350)9.5-3.1x=3.3(351)49x+88x+3.2=112.8(352)4(2x-35)=92(353)16.1-0.4x=13.3(354)68+x=138(355)6x÷34=0.3(356)x+1.9=4.2(357)x-42=28(358)75x-11x+4.4=68.4(359)7÷x=3.5(360)x-2=7.3(361)70-x=45(362)15x+4x+9=237(363)(4x-26)÷7=6(364)2(17x-36)=30(365)34x=13.6(366)48÷x=24(367)7.9x-3.2x-1.1=8.3(368)19.9-3x=4(369)4(6x-18)=72(370)8.2x-3.2x-1.6=23.4(371)12.1+54x=22.9(372)x-0.9=7.4(373)16x-13x+13=43(374)2.8x-1.4x=21(375)0.7x+0.3x=53(376)28x÷21=4(377)12x+9x=294(378)3.1x+0.9×2=17.3(379)x-0.9=7.7(380)6x+15x=105(381)11x-2x-10=35(382)3.3x+5.1=15(383)19x+1.5=7.2(384)3x÷51=0.2(385)(14x-14)÷14=8(386)2x-1.7=10.5(387)10x-2x=48(388)3.3x=19.8(389)x+62=91(390)10.5-3x=1.5(391)11x-7x+44=100(392)3x=63(393)6.3x-4.2x=25.2(394)8x-6x=48(395)2(0.8x+9.3)=34.6(396)0.2x-2=6.8(397)13.3+4.8x=27.7(398)(0.3x+5.7)÷2=5.4(399)8x+10x=108(400)76x+73x-3.7=100.6(401)2x+4.8=18.8(402)2x+4×24=214(403)11.9-3.5x=4.9(404)x÷58=2(405)51+2x=245(406)(5.8x-7.6)÷15=2.2(407)5.5x-1.2x+1.9=75(408)5x-18=102(409)13÷x=2.6(410)93x÷31=0.6(411)2x+43=97(412)x-57=41(413)0.9x-3.3×5=1.5(414)x÷3=0.9(415)3(0.2x+4.4)=33.6(416)11x-2x-3=159(417)4.4+x=9(418)3x+4x+3=80(419)40x-7×1.2=3.6(420)43x-2x+2.6=51.8(421)4.1x-1.2x-4.6=41.8(422)98-x=15(423)2x+3x-48=272(424)103-6x=55(425)x+9.2=17.6(426)x+4.1=12.8(427)94x=188(428)(14x-44)÷40=1(429)x÷24=0.8(430)8.4-x=4.9(431)3x÷96=0.2(432)(1.4x+9)÷18=1.2(433)4+5x=15.5(434)6.2+x=15.8(435)11x-4.6=2(436)7.9x-1.2=14.6(437)56x÷16=0.7(438)5.5+39x=25(439)x+3.6=6.3(440)6.9x-2.1=11.7(441)0.3x=11.4(442)1x-2.6=10.4(443)x+49=94(444)2(0.3x+2.4)=27.6(445)5x+18x=138(446)3x+11×3=189(447)44x-17x+2.2=58.9(448)1.5x+1.3x-1.4=124.6(449)2.9x+2.3x+0.5=16.1(450)2.7x+1.7×4=14.9(451)38x-14x-0.5=54.7(452)13x+1=4.9(453)8.3-x=4.3(454)7x-8×1.7=2.5(455)0.8x-1.2=11.6(456)x+31=43(457)5x-2×58=29(458)x+16=59(459)5x-5.2=13.8(460)5(x+21)=185(461)(9x-27)÷10=9(462)79x+95x+0.3=174.3(463)2(4.2x+0.9)=43.8(464)49x-4×0.9=16(465)7.4x+7.9x-4.3=179.3(466)77x-51x+0.6=5.8(467)39x-13x-3.1=15.1(468)3(1.2x-1.1)=11.1(469)9+3x=20.7(470)8(8x-35)=168(471)0.9x-3.4=5.6(472)6.8÷x=1.7(473)53x-33x-4.9=21.1(474)10x+13x=184(475)8x-3x+16=126(476)x-25=67(477)15x-9x-25=35(478)19x+7x-27=77(479)10÷x=5(480)14x-12x=16(481)0.6x-0.7×6=7.2(482)3x+3×27=138(483)41-x=23(484)4x+30=190(485)10.5÷x=0.5(486)13x-16×0.2=16.3(487)13x+26×0.3=27.3(488)x-1.7=2.3(489)8x-2x-7=35(490)(9.6x+3)÷6=6.9(491)78x-18x-2.1=9.9(492)29x+13x-2.4=48(493)17.8-2x=9.2(494)2x÷60=0.2(495)3x+22×6=282(496)2x=11.2(497)4x=160(498)95x-67x-0.4=10.8(499)4.3x-2.9x+1.4=15.4(500)3(0.5x+5.1)=39.3(501)x-22=13(502)47+x=57(503)0.9x+3.4=8.8(504)3.3-x=1(505)23x=138(506)(9x-15)÷15=14(507)0.3x÷18=0.9(508)12x+6x-30=222(509)(5x+35)÷5=19(510)2.4x=7.2(511)x÷30=0.6(512)52x+3.3=13.7(513)(3.2x-7.8)÷14=3.1(514)2x-11×6=18(515)7x+3×65=237(516)1.8x+1.9x-1.1=72.9(517)0.6x+2.2×9=22.8(518)2.1+0.6x=14.1(519)0.4x+1.6×7=19.2(520)x÷3=49(521)19.2÷x=3.2(522)6x-24×0.2=7.8(523)6.5+x=13.7(524)8x+11x=95(525)x+89=138(526)98x+33x-0.7=117.2(527)2x÷4=2.9(528)3.9x+5.2x-4.1=132.4(529)16.2-2x=5.8(530)4.6+x=7.5(531)(17x+3)÷26=6(532)2x+2×3.4=9.8(533)187÷x=11(534)2(6x+15)=162(535)8.3+x=10.2(536)3.6x+4.5x-4.3=20(537)81-x=20(538)3x+11=98(539)(9.2x-8.7)÷39=1.9(540)5.1x-3.7x+4.1=27.9參考答案(1)x=4(2)x=34(3)x=29(4)x=0.2(5)x=30(6)x=6(7)x=78(8)x=6(9)x=0.8(10)x=14(11)x=34(12)x=56(13)x=5(14)x=2(15)x=10(16)x=6.4(17)x=0.8(18)x=2.6(19)x=0.8(20)x=0.5(21)x=10(22)x=1.1(23)x=0.5(24)x=73(25)x=33(26)x=20(27)x=8.2(28)x=2(29)x=0.2(30)x=2.2(31)x=5(32)x=0.7(33)x=30(34)x=6.5(35)x=11(36)x=7(37)x=4(38)x=5(39)x=1.8(40)x=31(41)x=15(42)x=24(43)x=0.3(44)x=3(45)x=23(46)x=12(47)x=4.2(48)x=9(49)x=7(50)x=88(51)x=99(52)x=71(53)x=18(54)x=4.3(55)x=27(56)x=50(57)x=2(58)x=3(59)x=32(60)x=12(61)x=2.8(62)x=49(63)x=12(64)x=9(65)x=12(66)x=0.9(67)x=1(68)x=8(69)x=8(70)x=30(71)x=44(72)x=4.1(73)x=52(74)x=3.6(75)x=9(76)x=2.7(77)x=0.7(78)x=1.3(79)x=2(80)x=1.6(81)x=0.2(82)x=19(83)x=0.9(84)x=2(85)x=9(86)x=9(87)x=11(88)x=13(89)x=0.6(90)x=6(91)x=21(92)x=8(93)x=34(94)x=7(95)x=0.3(96)x=1.4(97)x=2(98)x=18(99)x=10(100)x=1.9(101)x=2(102)x=9(103)x=88(104)x=16(105)x=23(106)x=17(107)x=2(108)x=0.3(109)x=3(110)x=9(111)x=128(112)x=60(113)x=5(114)x=10(115)x=2.5(116)x=2(117)x=9(118)x=8.4(119)x=7(120)x=2(121)x=2(122)x=42(123)x=10(124)x=3(125)x=4.4(126)x=26(127)x=4(128)x=3(129)x=19(130)x=2(131)x=6(132)x=11(133)x=24(134)x=8(135)x=2(136)x=7(137)x=9(138)x=0.2(139)x=24(140)x=1(141)x=9.2(142)x=18(143)x=4(144)x=3(145)x=3(146)x=10(147)x=4.4(148)x=0.9(149)x=4(150)x=16(151)x=3.8(152)x=8.1(153)x=5(154)x=2(155)x=4(156)x=11(157)x=3(158)x=4(159)x=4(160)x=6(161)x=6(162)x=27(163)x=16(164)x=32(165)x=0.7(166)x=18(167)x=69(168)x=85(169)x=95(170)x=1.2(171)x=4.4(172)x=22(173)x=5(174)x=6(175)x=19(176)x=7(177)x=1.9(178)x=4(179)x=5(180)x=48(181)x=2.5(182)x=5(183)x=41(184)x=7(185)x=5(186)x=21(187)x=9(188)x=74(189)x=4(190)x=8(191)x=11(192)x=0.3(193)x=10(194)x=14(195)x=1.6(196)x=6(197)x=4(198)x=1.9(199)x=5(200)x=3(201)x=25(202)x=6(203)x=9.2(204)x=37(205)x=28(206)x=2(207)x=19.2(208)x=25(209)x=11(210)x=21(211)x=10(212)x=12(213)x=8(214)x=2(215)x=16(216)x=7.9(217)x=7(218)x=45(219)x=4(220)x=17(221)x=3.4(222)x=0.2(223)x=7(224)x=7(225)x=4(226)x=10(227)x=2.3(228)x=20(229)x=15(230)x=4(231)x=98(232)x=11(233)x=26(234)x=3(235)x=6(236)x=11(237)x=6(238)x=28(239)x=10(240)x=2.2(241)x=0.3(242)x=3(243)x=6(244)x=17(245)x=10(246)x=2(247)x=3(248)x=15(249)x=4.6(250)x=17(251)x=1.3(252)x=10(253)x=6(254)x=4(255)x=32(256)x=2.9(257)x=0.7(258)x=4(259)x=26(260)x=4.5(261)x=2(262)x=28(263)x=2(264)x=14(265)x=0.9(266)x=106(267)x=1.9(268)x=4(269)x=23(270)x=60(271)x=0.8(272)x=2.2(273)x=2(274)x=3(275)x=3.5(276)x=4(277)x=4(278)x=2(279)x=52(280)x=96(281)x=48(282)x=17(283)x=17(284)x=4(285)x=132(286)x=14(287)x=3(288)x=63(289)x=5(290)x=2(291)x=110(292)x=5.4(293)x=33(294)x=3(295)x=4(296)x=88(297)x=27(298)x=9(299)x=26(300)x=18(301)x=3(302)x=13.8(303)x=16(304)x=27(305)x=0.7(306)x=33(307)x=1.5(308)x=89(309)x=12(310)x=4.5(311)x=35(312)x=13(313)x=16(314)x=10(315)x=8(316)x=10(317)x=128(318)x=3.6(319)x=25(320)x=5(321)x=10(322)x=11(323)x=5.9(324)x=20(325)x=5(326)x=21(327)x=2.7(328)x=2(329)x=4(330)x=71(331)x=0.5(332)x=4(333)x=5(334)x=2(335)x=0.8(336)x=8(337)x=3(338)x=2(339)x=7(340)x=13(341)x=33(342)x=8.6(343)x=3(344)x=2.2(345)x=0.8(346)x=40(347)x=4(348)x=77(349)x=6(350)x=2(351)x=0.8(352)x=29(353)x=7(354)x=70(355)x=1.7(356)x=2.3(357)x=70(358)x=1(359)x=2(360)x=9.3(361)x=25(362)x=12(363)x=17(364)x=3(365)x=0.4(366)x=2(367)x=2(368)x=5.3(369)x=6(370)x=5(371)x=0.2(372)x=8.3(373)x=10(374)x=15(375)x=53(376)x=3(377)x=14(378)x=5(379)x=8.6(380)x=5(381)x=5(382)x=3(383)x=0.3(384)x=3.4(385)x=9(386)x=6.1(387)x=6(388)x=6(389)x=29(390)x=3(391)x=14(392)x=21(393)x=12(394)x=24(395)x=10(