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)5.4x-2.1x-4.9=5(2)22x+4=23.8(3)x÷33=4(4)12÷x=3(5)36x÷6=3(6)65-x=22(7)2x-1.9=4.7(8)(4x+39)÷3=41(9)1.4x+2.1x+2.5=58.5(10)(9x-6)÷3=76(11)x+83=126(12)(1.1x+6.4)÷38=0.4(13)33x=99(14)3x-3.7=11.3(15)x-2=6.6(16)0.2x-4.7=14.7(17)0.8x=15.2(18)13+1.8x=25.6(19)19+x=37(20)2.1+57x=19.2(21)2x-2.3=15.9(22)196-3x=121(23)32x-17x+1.7=33.2(24)2x=17.4(25)10x+20x-0.4=56.6(26)30x+62x-1.2=44.8(27)7+x=70(28)64-x=41(29)16x-10x+41=113(30)40x=200(31)7.9x-5.8x+3.3=13.8(32)4x-1.7=6.3(33)126÷x=7(34)(4.6x+8.4)÷2=11.1(35)96x-69x+4.5=20.7(36)14.2÷x=0.2(37)0.3x+4.7=19.1(38)(14x+18)÷48=3(39)(6x+40)÷2=38(40)4(2x+23)=172(41)7+0.2x=13(42)16.9+9.2x=35.3(43)2(2.3x-7.8)=7.4(44)86x+33x+1.3=108.4(45)5x+6x+2.6=46.6(46)7x-7×15=56(47)2(0.2x+2.2)=11.6(48)21x+99×2=240(49)11x=11(50)7.9x+0.9x+0.7=88.7(51)x÷22=0.7(52)18-14x=4(53)49+16x=145(54)8÷x=0.5(55)5.4x+4.3x-2.1=153.1(56)40x÷50=0.4(57)9x-39×2=84(58)9x-2×3.3=12.3(59)9÷x=3(60)34x-20x+0.7=13.3(61)40x+72x-1=144.6(62)1.7x+0.2×43=12(63)19x+21=135(64)10x+3×37=151(65)1.3x-0.4×33=2.4(66)1.9x-0.6x-4.9=43.2(67)8.8x-7.5x-0.5=11.2(68)2(7x+27)=138(69)35x+1=15(70)2.1x-2.8=3.5(71)63x+5.9=24.8(72)1.2x-0.8x+0.3=32.3(73)8.5+0.6x=18.7(74)43x=129(75)19x-6x+34=86(76)1.1x-0.7x=19.6(77)16x-4x-13=119(78)8x+3×18=182(79)14.6-39x=6.8(80)1.7x=11.9(81)x÷8=0.3(82)3x+18x-45=144(83)16x+9x-42=108(84)14(2.2x-6.3)=35(85)12x-2.5=9.5(86)61-x=47(87)10x-7x=33(88)(5x+8.2)÷2=44.1(89)0.2x+4.2=7.4(90)18.8-23x=5(91)x÷25=0.7(92)15x+19x=170(93)3(24x-31)=195(94)66-x=27(95)3x+1x-3.5=48.5(96)6.9-x=2.2(97)0.2x=19(98)86+x=182(99)2(0.2x+0.6)=11.6(100)17.4-10x=14.4(101)x÷45=3(102)12x+8x-26=274(103)7x-5x-46=10(104)6.7+48x=21.1(105)3x-11=163(106)56x-9x+1.9=20.7(107)16x+36×3=188(108)0.2x-2.3×2=2.2(109)9x+5.7x+3.6=47.7(110)12(0.6x-4.5)=18(111)10.4+6x=16.4(112)14.8-0.3x=11.8(113)39x+10=127(114)17x-22×5=77(115)17x-10x+8=71(116)x-2.5=6.1(117)9.2x+0.9x-0.2=100.8(118)x-25=15(119)8.4+4x=12(120)99x+4x-2.7=100.3(121)75x-28x-2.2=44.8(122)6x+9×0.2=8.4(123)x-1.4=8.1(124)19x+18x=333(125)0.2x-0.7×2=2.6(126)7(0.5x-2.9)=39.2(127)4.7x-3.9x+2.7=16.3(128)13(11x-18)=195(129)x÷12=0.2(130)76-x=36(131)5x=120(132)99x-20x-4.5=58.7(133)5.1x=15.3(134)11.5-0.9x=7(135)90x-28=152(136)4(1.4x+5.9)=46(137)x-46=18(138)6x-3.4=11(139)1.1x+0.7×2=5.8(140)(8.5x-1.5)÷2=37.5(141)x+79=163(142)14x-7x=21(143)8x-6x=32(144)x-58=12(145)4.3x-4x+3.4=6.1(146)83x+15=181(147)(0.7x-0.5)÷20=0.5(148)9x+6x=180(149)0.9x+4.8=11.1(150)5x+4.2=14.2(151)139+22x=183(152)81x-3x-3.5=66.7(153)32+x=72(154)0.9x+1.5x=158.4(155)0.2x+1.7=10.9(156)3(0.8x+1.6)=48(157)2x+21=123(158)x+13=77(159)0.6x÷3=4(160)77x=154(161)17x-9x+28=116(162)x-61=38(163)17x-6x-2.7=47.9(164)15x-9×0.8=6.3(165)6.2+x=11.5(166)5x-3.1=5.4(167)12x-14=70(168)(4.1x-2.3)÷27=2.8(169)58x+7x+4.7=108.7(170)3x+3×0.2=5.1(171)18x-2x+49=145(172)(9x+33)÷15=13(173)2(0.9x-6.4)=12.4(174)7+x=14.2(175)3x÷21=0.4(176)70-x=15(177)31x+10x+4.2=61.6(178)10.1+5.6x=26.9(179)8x-2x+48=162(180)3+x=3.4(181)8.9x+5.6x-3.3=83.7(182)x-0.4=6.8(183)(0.2x+9.3)÷5=2.1(184)7.5x+7x-3.6=68.9(185)58+x=111(186)181+2x=327(187)(3x-42)÷6=6(188)14x+7x+2.6=15.2(189)23x+95x+4.7=99.1(190)17x+6×27=247(191)88÷x=8(192)11.4-7x=8.6(193)6x+4.2=22.8(194)16÷x=1.6(195)x+9.5=14.3(196)x-25=64(197)4+x=5.6(198)1.1x+2.3x+1.3=52.3(199)(8x-12)÷42=2(200)48x÷4=24(201)0.3x+5.8x-2.7=76.6(202)4.7+39x=24.2(203)0.3x+1.9=2.8(204)(7x-15)÷6=22(205)0.4x-0.3×29=4.1(206)2.7x-0.6x+4=67(207)144-13x=27(208)(6x+5)÷5=13(209)12x+17x-4=315(210)2x-8×11=60(211)149+16x=181(212)3.4x+3.8x=158.4(213)26+x=85(214)2.5+x=9.6(215)24(0.3x+0.4)=31.2(216)0.2x-4.6=3.2(217)5(0.2x+8.8)=48(218)2x÷14=0.4(219)39x+17=134(220)3.6x-1x=18.2(221)x÷4=0.2(222)0.2x-1=1.8(223)14.3-37x=6.9(224)2(3x+36)=150(225)2.5+36x=20.5(226)10.4-0.9x=1.4(227)46x-45=139(228)(6.4x-6.8)÷4=6.3(229)0.2x-2=3.2(230)5x+18x-9=129(231)15x-4x=121(232)93x-71x-4.3=11.1(233)4.5-0.5x=3(234)3.2x+0.2×12=8.8(235)11.2÷x=0.7(236)2.3x-1.2x-0.5=23.7(237)1.6x=6.4(238)2x-40=44(239)(8.5x-9.9)÷9=7.4(240)0.8x-0.7×9=9.7(241)11.8-20x=7.8(242)18x+3x-23=103(243)2(1.9x+5.8)=34.4(244)x÷5=0.6(245)4.4x-2.8x-1.7=22.3(246)x+36=44(247)(7x-24)÷13=10(248)79+5x=209(249)19x-5x-32=94(250)x-6.6=1.5(251)47+3x=146(252)x÷20=7(253)8x+4×1.3=20.4(254)5x+19x-19=53(255)(9x-37)÷4=29(256)17.3-6.4x=4.5(257)8x-2x-23=61(258)5.5+39x=21.1(259)5.4x-3.1x-4.7=13.7(260)8-x=6.5(261)3x-1.4=4.6(262)50x-37=163(263)x+1.4=9.7(264)11x+7x+38=74(265)52x-49=55(266)2x+2.8=7.2(267)87x=17.4(268)x÷4=32(269)2x+5x+14=77(270)x+6.9=14.6(271)6.5x+8.8x+1.6=139.3(272)3(23x-27)=57(273)15(6.2x-9.9)=37.5(274)5x+3x-1=41.4(275)3.8x-1.1x=70.2(276)189-24x=117(277)1.4x+1.2=4(278)186+6x=354(279)2.7x÷3=3.6(280)x÷26=4(281)1.5x+5x=110.5(282)111-4x=19(283)15x+40=145(284)7x+28×0.7=32.9(285)x-5.7=2(286)1.8x+0.2×16=12.2(287)3.1x+3.8x+0.7=21.4(288)1.8x÷9=2(289)7.1x-3.2x+1.8=17.4(290)3x÷4=2.1(291)2x+4.4x-4=79.2(292)2(6x+9)=54(293)3(14x+16)=132(294)5.2x+4.5x=106.7(295)4x-14=110(296)5x+16x+5=194(297)6.3x+2.5x=88(298)x÷2=2(299)3(0.4x-5.2)=28.8(300)0.9x=12.6(301)6x+30=138(302)3x+11×16=326(303)0.4x=8.4(304)x-5.9=3.9(305)13x+9x+17=171(306)18x+15x-10=353(307)6x+7x-46=97(308)2x+3x=225(309)5.8-x=1.2(310)4x-2x-31=63(311)8.8+x=14.4(312)x+8.6=15.2(313)41x=164(314)3.5x+1.3×9=25.7(315)8.1-x=2.9(316)2.6x-1.5x=5.5(317)105+7x=280(318)39+x=92(319)9.9x-2.1x=46.8(320)4(12x-2)=88(321)48÷x=16(322)3x+52=166(323)0.2x+1.9=14.3(324)53+x=119(325)x÷17=4(326)17x+16x=297(327)10x-37=163(328)24x-49×2=46(329)x+26=122(330)36x=7.2(331)2.8-x=1.6(332)55+x=98(333)x÷96=0.2(334)11x-2x=126(335)9x-19×0.2=2.5(336)8x+4x+35=119(337)5x+50x-3.7=84.3(338)3.8x+1.6x-4.4=60.4(339)(6x+26)÷2=46(340)x+6.4=14.8(341)37x-28×0.3=10.1(342)2.6x-0.7×15=2.5(343)5+0.6x=11(344)88x+56x+0.2=57.8(345)x+95=193(346)2(10x+38)=196(347)(6.1x+2.2)÷30=1.7(348)96-x=76(349)55x+69x+0.4=149.2(350)x+71=156(351)6(2x-48)=120(352)7x=147(353)9x+16x=175(354)71x-22x+2.8=27.3(355)14.2+0.5x=18.2(356)18.3÷x=0.3(357)2x+7.6x=57.6(358)2x+38×3=248(359)3.5x-0.9×6=8.6(360)45x÷12=1.5(361)(13x-36)÷11=18(362)5.6x+1.4x=21(363)(2.1x+3.3)÷6=5.8(364)1.2x+0.4x=120(365)4(x-11)=96(366)3x-4.6=2.9(367)3(16x-27)=111(368)0.6+x=9.8(369)x÷8=22(370)3x=81(371)9.8x÷7=2.8(372)16x÷8=20(373)10x-8x+23=35(374)11.6-0.4x=6.8(375)(8x-4)÷35=0.8(376)1x=11(377)10x-3x=77(378)13.7-0.5x=8.7(379)x÷3=4(380)68x-6x+3.6=28.4(381)(10x+28)÷4=57(382)2x+2×72=168(383)2.3x÷69=0.2(384)(4.4x+0.4)÷20=3.1(385)2.8x-1.3×3=15.7(386)17x+36x+1=144.1(387)16x-5x+2.6=19.1(388)10x+7×0.9=15.3(389)60x÷5=36(390)x+5.6=7.9(391)2x+72×2=158(392)12x-8x-2=27.6(393)3x+18x+6=174(394)4(8x+7)=124(395)62x+93x-3.3=27.7(396)95x-58x+3.5=36.8(397)2.8x÷6=1.4(398)11x+5x=160(399)1.8x+2.3x+0.6=103.1(400)5.3x+2.8x-0.9=31.5(401)69x=13.8(402)9x+60x-1=102.5(403)x+1.6=10(404)(6.2x-8)÷5=4.6(405)7(2x-8)=182(406)17.1-3x=5.4(407)34x÷17=10(408)x-44=14(409)16x÷4=44(410)1÷x=0.5(411)112÷x=16(412)48+9x=66(413)8-x=3.2(414)93-x=15(415)0.3x÷18=0.5(416)2.6x-3.2=12.4(417)9.2÷x=0.2(418)5.9x-5=6.8(419)x÷4=5(420)(5x-18)÷11=7(421)16x+9x+33=283(422)9.4x-1.8x-4.6=10.6(423)2.8+x=3.9(424)(4x-1.8)÷27=2.6(425)99x-73x-3.9=11.7(426)64x÷4=48(427)2x=12.6(428)6-x=3.9(429)0.9x+1.3=9.4(430)3.5x-0.7x+0.9=65.3(431)18x-4x-26=100(432)93-9x=75(433)16x+8x+39=279(434)3.7x-2.2x=13.5(435)2.4x-1.6x-3.4=27(436)9x+8×0.5=5.8(437)20x-19×0.4=10.4(438)14x=4.2(439)0.2x÷7=1.2(440)2x-2×17=92(441)178-2x=162(442)7.5-x=3.8(443)x+9.3=14.3(444)11(0.7x-0.9)=20.9(445)(11x+27)÷10=28(446)(14x-17)÷11=1(447)5.4÷x=0.9(448)5x+6x=297(449)16(0.2x-2.7)=43.2(450)2.1x-0.9×6=13.5(451)16x-9x=42(452)17x+10×0.8=16.5(453)5.8x-2.8x+4.4=16.4(454)1.1+x=2(455)1.1x+1.7×3=24.9(456)40x-6×2.7=3.8(457)16x=6.4(458)88-x=16(459)12÷x=2(460)13.4+3x=23.3(461)x-38=46(462)2(6x-44)=200(463)30÷x=10(464)12x-8x-21=35(465)12x-6x+34=46(466)4x-2x-26=66(467)6x-4×20=100(468)15.8-1.2x=11(469)x-34=41(470)0.3x+0.7×12=17.7(471)0.2x+3×4=20.8(472)(0.9x+6.2)÷2=5.8(473)3.3-x=3(474)2(7x+24)=76(475)x+5=70(476)38x÷6=1.9(477)27x-2x-3.6=33.9(478)81x-64x+3.9=15.8(479)6x+3.4=23.2(480)1.3x=5.2(481)18x-2x+48=144(482)0.7x-1.1=6.6(483)8.7+2.9x=14.5(484)(8.6x-1.6)÷8=4.1(485)x-31=16(486)6+1.2x=10.8(487)84x÷21=8(488)9.8x+6.7x=82.5(489)x+7.6=10.9(490)3x+4.3=8.2(491)15x+7x-0.8=104.8(492)15x÷6=3(493)4.9x-0.5x-3.3=67.1(494)0.2x+3.7×5=20.1(495)7x-3x-40=48(496)95x-37x-1.6=33.2(497)19-3x=13(498)8x-5x=42(499)9x-33×2=123(500)4.3x-1.3x=45(501)13x+9x+31=207(502)10x=7(503)2.7x+3.6x+0.2=145.1(504)5.7x-0.7x=70(505)10x÷26=0.5(506)15.7-1.9x=6.2(507)11x+10=131(508)3x+11x=168(509)(2.6x+2.5)÷9=2.3(510)13.2÷x=0.2(511)131-3x=116(512)3x÷6=27(513)2x+2.7=7.5(514)0.6x+2.3=11.9(515)149-23x=57(516)3(3x+16)=111(517)1.9x-0.2x+2=17.3(518)6.5-5x=1(519)17x-11×1.2=2.1(520)75x+80x+4.7=128.7(521)11x-5x=108(522)4.1x-2.7x=30.8(523)4x=52(524)2x+40×0.5=27.6(525)7.2x÷18=0.8(526)11.3+48x=25.7(527)5x-14×1=6(528)3x+32×0.3=14.7(529)x-5.4=4(530)x-2=4.4(531)x÷18=1(532)8x-2×40=32(533)2(0.3x+0.9)=17.4(534)48x-10×0.9=10.2(535)3(0.3x+2.4)=41.4(536)111÷x=3(537)24x÷12=6(538)(17x+10)÷28=4(539)x+24=59(540)43x-1.5=15.7參考答案(1)x=3(2)x=0.9(3)x=132(4)x=4(5)x=0.5(6)x=43(7)x=3.3(8)x=21(9)x=16(10)x=26(11)x=43(12)x=8(13)x=3(14)x=5(15)x=8.6(16)x=97(17)x=19(18)x=7(19)x=18(20)x=0.3(21)x=9.1(22)x=25(23)x=2.1(24)x=8.7(25)x=1.9(26)x=0.5(27)x=63(28)x=23(29)x=12(30)x=5(31)x=5(32)x=2(33)x=18(34)x=3(35)x=0.6(36)x=71(37)x=48(38)x=9(39)x=6(40)x=10(41)x=30(42)x=2(43)x=5(44)x=0.9(45)x=4(46)x=23(47)x=18(48)x=2(49)x=1(50)x=10(51)x=15.4(52)x=1(53)x=6(54)x=16(55)x=16(56)x=0.5(57)x=18(58)x=2.1(59)x=3(60)x=0.9(61)x=1.3(62)x=2(63)x=6(64)x=4(65)x=12(66)x=37(67)x=9(68)x=6(69)x=0.4(70)x=3(71)x=0.3(72)x=80(73)x=17(74)x=3(75)x=4(76)x=49(77)x=11(78)x=16(79)x=0.2(80)x=7(81)x=2.4(82)x=9(83)x=6(84)x=4(85)x=1(86)x=14(87)x=11(88)x=16(89)x=16(90)x=0.6(91)x=17.5(92)x=5(93)x=4(94)x=39(95)x=13(96)x=4.7(97)x=95(98)x=96(99)x=26(100)x=0.3(101)x=135(102)x=15(103)x=28(104)x=0.3(105)x=58(106)x=0.4(107)x=5(108)x=34(109)x=3(110)x=10(111)x=1(112)x=10(113)x=3(114)x=11(115)x=9(116)x=8.6(117)x=10(118)x=40(119)x=0.9(120)x=1(121)x=1(122)x=1.1(123)x=9.5(124)x=9(125)x=20(126)x=17(127)x=17(128)x=3(129)x=2.4(130)x=40(131)x=24(132)x=0.8(133)x=3(134)x=5(135)x=2(136)x=4(137)x=64(138)x=2.4(139)x=4(140)x=9(141)x=84(142)x=3(143)x=16(144)x=70(145)x=9(146)x=2(147)x=15(148)x=12(149)x=7(150)x=2(151)x=2(152)x=0.9(153)x=40(154)x=66(155)x=46(156)x=18(157)x=51(158)x=64(159)x=20(160)x=2(161)x=11(162)x=99(163)x=4.6(164)x=0.9(165)x=5.3(166)x=1.7(167)x=7(168)x=19(169)x=1.6(170)x=1.5(171)x=6(172)x=18(173)x=14(174)x=7.2(175)x=2.8(176)x=55(177)x=1.4(178)x=3(179)x=19(180)x=0.4(181)x=6(182)x=7.2(183)x=6(184)x=5(185)x=53(186)x=73(187)x=26(188)x=0.6(189)x=0.8(190)x=5(191)x=11(192)x=0.4(193)x=3.1(194)x=10(195)x=4.8(196)x=89(197)x=1.6(198)x=15(199)x=12(200)x=2(201)x=13(202)x=0.5(203)x=3(204)x=21(205)x=32(206)x=30(207)x=9(208)x=10(209)x=11(210)x=74(211)x=2(212)x=22(213)x=59(214)x=7.1(215)x=3(216)x=39(217)x=4(218)x=2.8(219)x=3(220)x=7(221)x=0.8(222)x=14(223)x=0.2(224)x=13(225)x=0.5(226)x=10(227)x=4(228)x=5(229)x=26(230)x=6(231)x=11(232)x=0.7(233)x=3(234)x=2(235)x=16(236)x=22(237)x=4(238)x=42(239)x=9(240)x=20(241)x=0.2(242)x=6(243)x=6(244)x=3(245)x=15(246)x=8(247)x=22(248)x=26(249)x=9(250)x=8.1(251)x=33(252)x=140(253)x=1.9(254)x=3(255)x=17(256)x=2(257)x=14(258)x=0.4(259)x=8(260)x=1.5(261)x=2(262)x=4(263)x=8.3(264)x=2(265)x=2(266)x=2.2(267)x=0.2(268)x=128(269)x=9(270)x=7.7(271)x=9(272)x=2(273)x=2(274)x=5.3(275)x=26(276)x=3(277)x=2(278)x=28(279)x=4(280)x=104(281)x=17(282)x=23(283)x=7(284)x=1.9(285)x=7.7(286)x=5(287)x=3(288)x=10(289)x=4(290)x=2.8(291)x=13(292)x=3(293)x=2(294)x=11(295)x=31(296)x=9(297)x=10(298)x=4(299)x=37(300)x=14(301)x=18(302)x=50(303)x=21(304)x=9.8(305)x=7(306)x=11(307)x=11(308)x=45(309)x=4.6(310)x=47(311)x=5.6(312)x=6.6(313)x=4(314)x=4(315)x=5.2(316)x=5(317)x=25(318)x=53(319)x=6(320)x=2(321)x=3(322)x=38(323)x=62(324)x=66(325)x=68(326)x=9(327)x=20(328)x=6(329)x=96(330)x=0.2(331)x=1.2(332)x=43(333)x=19.2(334)x=14(335)x=0.7(336)x=7(337)x=1.6(338)x=12(339)x=11(340)x=8.4(341)x=0.5(342)x=5(343)x=10(344)x=0.4(345)x=98(346)x=6(347)x=8(348)x=20(349)x=1.2(350)x=85(351)x=34(352)x=21(353)x=7(354)x=0.5(355)x=8(356)x=61(357)x=6(358)x=67(359)x=4(360)x=0.4(361)x=18(362)x=3(363)x=15(364)x=75(365)x=35(366)x=2.5(367)x=4(368)x=9.2(369)x=176(370)x=27(371)x=2(372)x=10(373)x=6(374)x=12(375)x=4(376)x=11(377)x=11(378)x=10(379)x=12(380)x=0.4(381)x=20(382)x=12(383)x=6(384)x=14(385)x=7(386)x=2.7(387)x=1.5(388)x=0.9(389)x=3(390)x=2.3(391)x=7(392)x=7.4(393)x=8(394)