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)3.1x+0.6×15=21.4(2)12.2-8x=9(3)2x+40=130(4)3x+2.3=17.9(5)x+96=126(6)26x-8×0.3=10.6(7)98-5x=73(8)1.1x-0.3×4=1(9)45x+42=177(10)12x=48(11)4(1.3x-6.4)=42(12)18x+15x=165(13)8x-4x+20=108(14)1.6x÷28=0.4(15)14x÷2=4.9(16)57x-42x+3.3=10.8(17)3x+4x+47=131(18)3.5x-0.4x-0.3=18.3(19)x+8.8=10.5(20)91-x=49(21)1.7x+3x-0.3=37.3(22)x-2.9=4.4(23)12x-16×0.4=9.2(24)71x-37=105(25)(2.4x+0.2)÷2=6.1(26)1.9+31x=20.5(27)x+7.3=7.7(28)x+39=76(29)5.5x-2.8x+1.6=28.6(30)x÷6=28(31)x÷10=19(32)2.7x=18.9(33)48x+2.8=12.4(34)1.3x+3.1x-4.3=79.3(35)x+6.5=12(36)(12x-8)÷14=14(37)7.7+0.2x=8.3(38)(9x+18)÷9=16(39)(4.5x+6.3)÷27=1.9(40)11.7-1.7x=3.2(41)2.3x+8.6x-0.9=42.7(42)x÷6=3(43)6x-1.1=12.1(44)4x÷25=0.8(45)x+42=129(46)2.4-x=1.9(47)5(x+2)=80(48)4.7x-3.6x=6.6(49)9(0.4x+1.9)=24.3(50)8x-37=147(51)x÷8=0.3(52)5.1+2x=24.7(53)12x+7x-40=245(54)132÷x=6(55)32x÷8=1.6(56)16x-3x-14=77(57)x+6.2=7.9(58)70x+3x+2.1=97(59)13x-7x+40=130(60)164÷x=4(61)30x+59x+0.5=62.8(62)32x+5×1.3=25.7(63)107+2x=285(64)12x-8x+21=33(65)2.3+5x=7.8(66)7(1.8x+0.3)=27.3(67)1.2÷x=0.3(68)7.6x+9.2x=67.2(69)10x+15x=50(70)9x-6x+39=78(71)0.5x+0.3×40=19(72)(13x+10)÷2=44(73)18x+13x-33=153(74)19.7-4x=12.1(75)30x-4×1.1=10.6(76)2.3+x=8.2(77)2(x-36)=24(78)9-31x=2.8(79)x+1.9=7.5(80)(9x-36)÷4=9(81)x÷5=37(82)16x+6×12=248(83)13x-3x=90(84)21x+12x+3.3=141.9(85)10x-6x+10=82(86)0.6+x=1.4(87)2x-31=63(88)126+2x=308(89)2(0.5x+9.3)=20.6(90)1.1+x=10.1(91)40x-5x-1.2=12.8(92)14x-4x-4=76(93)18x+5×37=365(94)x÷60=2(95)21x=4.2(96)3x+10x+26=221(97)15x-7x-11=61(98)5x-25=125(99)15.9-4.2x=7.5(100)47-x=11(101)4x-2x=58(102)1.2x-0.7x+2.2=35.2(103)2.8+4.8x=17.2(104)11.4-2.3x=2.2(105)16.9-2x=7.7(106)28x-8x+1.6=15.6(107)83+x=175(108)2(2x-4)=84(109)7.5-x=3.7(110)4x-2.8=10(111)19x-5x+47=89(112)10x-5x-19=76(113)x-3.7=3.1(114)2.1x-4.1=4.3(115)0.5x+4.8x+1.4=75.6(116)9.2x-2.5x-4.4=55.9(117)0.9x-1.6=16.4(118)x÷44=0.4(119)0.2x+2.1x+3.1=81.3(120)55x=11(121)93x+1.8=20.4(122)x-15=72(123)5x+60x-2.8=23.2(124)30÷x=15(125)4x+2x+21=117(126)(11x+45)÷9=27(127)x+5.5=10.6(128)128-18x=92(129)2(5.7x+6.1)=46.4(130)11x-2x=72(131)11x-3x=96(132)85-x=11(133)77x-49=105(134)23(2.1x-7.1)=29.9(135)6.5x=19.5(136)10(7x-9)=190(137)5x-23=17(138)14x+12x-1.9=76.1(139)1+x=10.9(140)x÷2=13(141)(8x-33)÷9=7(142)17x+5x+10=76(143)8x-32×0.3=4(144)7x+10x-36=287(145)3.3x-0.6×22=3.3(146)12+0.6x=13.8(147)5.4÷x=0.3(148)x÷2=2.3(149)95+x=153(150)(5.1x+3)÷4=23.7(151)87x-19x-3.8=23.4(152)6.3x-1.7x-4.4=27.8(153)(1.1x+9.9)÷33=0.5(154)64-x=21(155)13x+6×19=231(156)13x÷2=3.9(157)26x-7x-1.3=59.5(158)12x-2.6=8.2(159)0.2x+3.4=20.8(160)(8.5x+4)÷14=1.5(161)(19x-40)÷10=15(162)(16x+15)÷9=7(163)2x+17x-0.6=98.2(164)17x+5x=242(165)2.5x+3.7×2=17.4(166)0.9x÷54=0.2(167)0.4x+3.6=6(168)9.6x-4x=39.2(169)8x+7x+4=229(170)9x+19=199(171)1.5x=15(172)6.6+100x=26.6(173)x÷13=0.5(174)0.7x-5.9=13.7(175)4x-24=28(176)15+22x=81(177)4x+29×0.4=19.6(178)1.3x=3.9(179)10x÷5=3.2(180)x-30=65(181)11÷x=1.1(182)x-0.8=5.5(183)27x+24×0.8=30(184)175+16x=351(185)0.2x-4=6.6(186)9.8x-6x-0.9=37.1(187)0.7x+1x+1.2=166.1(188)3(0.3x+6.3)=48.6(189)4(23x-49)=80(190)0.2x+2.7=15.1(191)x+0.9=5.7(192)4x=108(193)2x+13x=150(194)3x+11×0.3=15.6(195)1.9x+2.6x=139.5(196)17x-14x+43=61(197)0.9x=7.2(198)2(6x+40)=188(199)19.1+0.3x=26.9(200)6x+3x=126(201)28x+22x-0.3=54.7(202)37x-16x+1.8=29.1(203)60+x=81(204)(4.5x-9.1)÷2=33.7(205)2x=76(206)2(13x+36)=150(207)4.8x+5.4x=112.2(208)x÷15=0.6(209)15x÷5=1.2(210)7x+19x-24=28(211)12x÷4=3.9(212)x-31=48(213)3.2x-1.6x+0.5=8.5(214)69x÷23=6(215)2.3x-0.6×29=1(216)6.1x=12.2(217)70x-34x-0.7=17.3(218)(0.4x+3.2)÷8=0.7(219)0.9x+2.5×4=17.2(220)173+10x=323(221)13(2x-12)=156(222)17(1.3x-0.8)=30.6(223)92-13x=27(224)5x+37=57(225)0.3x-1.4×3=6(226)12.1÷x=1.1(227)x÷3=4(228)64x-33x-0.9=33.2(229)64x+93x+2.4=80.9(230)8.2x-1.7x+1.3=72.8(231)0.8x÷4=3.2(232)0.9x+2.6=11.6(233)49x-24×0.2=5(234)5.4-x=2.1(235)12.7+0.2x=22.3(236)78+22x=232(237)4x-2×16=148(238)5.1x+0.7x=63.8(239)11x-6x=60(240)9x-6.4x-0.9=4.3(241)20x=20(242)(x-7)÷11=2(243)35+x=132(244)2x=38(245)3x-54×2=48(246)0.4x=3.2(247)6.1x+5.1x=112(248)10x÷5=40(249)0.8x+1.6x=79.2(250)4.3x-0.6x=25.9(251)32x-11x+3.1=22(252)62x+46x-3.4=18.2(253)11x+99x+0.5=99.5(254)0.6x÷36=0.5(255)7x+10x+22=294(256)24x+20×0.2=20.8(257)9x-5x+20=52(258)3x+1.2=5.7(259)1.7x-0.4×19=6(260)0.2x-0.4×7=1.8(261)2(8x+35)=198(262)2x+9x-37=161(263)x-15=13(264)4x+5.3=15.3(265)16.2-7x=1.5(266)46÷x=2(267)71+x=80(268)x-84=11(269)9x-2x-17=102(270)(16x-10)÷27=2(271)77+x=103(272)4.1x-5.6=10.8(273)x-2.7=6.9(274)22x=176(275)x+64=151(276)8x-10×6=52(277)9.3+4x=29.3(278)2x=42(279)16x÷8=8(280)(13x-49)÷2=21(281)x-1.6=6.9(282)17.9-54x=1.7(283)21x+37x-1=149.8(284)x+83=161(285)5.7x-3.6x+4=27.1(286)6.6x-2.3x=21.5(287)x-27=46(288)(7.8x-9.2)÷2=42.2(289)x-58=28(290)5x+2×22=199(291)5x+13×15=395(292)x÷17=0.4(293)5x=15(294)11x-11×12=66(295)(6.2x-5.4)÷22=3.7(296)9-x=8.1(297)6x-4.1=13.3(298)84x-56x-2.3=22.9(299)0.2x+3.5=22.5(300)8.4-x=7.6(301)5x+18x-18=212(302)0.4x-4=3.2(303)3(0.6x+8.4)=45(304)89-x=36(305)15x+8x+31=123(306)14x-13×0.7=7.7(307)7x+4×2.2=13(308)(3.7x+8.8)÷20=3.4(309)142-27x=88(310)0.2x+0.3×11=8.3(311)7.8-1.1x=3.4(312)20x-18x-2.1=3.9(313)32x-4.9=11.1(314)2x+34=122(315)(11x+34)÷42=5(316)18x-2x=112(317)7x+19×5=123(318)2x=0.6(319)162÷x=18(320)5x-10=155(321)x-5.5=1.2(322)94x-40=148(323)40÷x=20(324)1.3x+0.8x+2.9=156.2(325)x÷10=11(326)79-x=34(327)5.4-x=1(328)3x+3.5=20(329)9x+5x-40=58(330)57-x=40(331)13x+42=146(332)34x-28x-3.1=4.7(333)2x÷6=33(334)70+x=137(335)x+42=60(336)2.7x+2.3x-3.9=146.1(337)8.6x+3.6x=109.8(338)18+61x=36.3(339)6x+15x=147(340)(1.7x+0.8)÷23=0.7(341)2.9+16x=10.9(342)8x+13x=126(343)12÷x=0.5(344)26+x=56(345)8(0.3x+3.2)=47.2(346)7.3+2.3x=21.1(347)1.5x+0.2×20=19(348)x-4.2=1.7(349)13.8-31x=4.5(350)3.7x-1.9x=46.8(351)5.4+x=6.3(352)x-37=31(353)16-0.2x=15.6(354)2.2x+0.8x=105(355)7.3x+7.6x-0.9=177.9(356)5x=185(357)28(1.5x-7.6)=39.2(358)76x-64x+3.5=17.9(359)8x+7x=330(360)20÷x=2(361)3.9-2x=3.3(362)6.2x-4.5x=17(363)38x=114(364)21x-68×2=32(365)126-12x=54(366)(6.5x-9)÷16=3.5(367)78x+91x-1.5=133.7(368)11x-5x=90(369)x+75=105(370)1.6÷x=0.2(371)4x÷12=8(372)3x+39×0.4=29.7(373)72x+41x+2.4=92.8(374)2(x+4.9)=31.8(375)8.5-x=1.3(376)0.2+x=2.8(377)6.1x+1x+0.7=78.8(378)(2x+33)÷13=7(379)24(0.7x-2.5)=40.8(380)2x-4.2=9.6(381)(18x+16)÷4=40(382)3(2x-3.5)=19.5(383)4x+9×0.6=8.6(384)3.5x=7(385)15.8+6x=33.8(386)6.2x+4x+3.6=24(387)20x=100(388)0.9x÷6=0.6(389)32x=6.4(390)(12x+42)÷2=75(391)x-2.5=2(392)0.4x-1.6×5=4(393)4x-5×24=28(394)3x-3=1.8(395)3(0.5x-9.4)=19.8(396)x+9.2=12(397)8x÷40=4(398)13.6-3.1x=4.3(399)5x+5.9=6.9(400)15x-7x-20=44(401)144÷x=24(402)12x÷6=18(403)9.7x-3.8x-3.7=8.1(404)0.2x+0.4×36=22.8(405)3x=7.5(406)x+6.6=9.6(407)0.5x÷80=0.2(408)2.8x÷14=0.6(409)5.5x+4.5=15.5(410)8x-1.3x+4.9=78.6(411)41x+27x+1.3=89.7(412)19.4+0.9x=37.4(413)6(0.5x-7.3)=37.2(414)13x-12×0.6=12.3(415)8x-4.2=13.4(416)4.8÷x=0.6(417)19.6-6x=14.8(418)0.6x-0.4×24=3.6(419)21x-21×3=84(420)19.6+56x=36.4(421)20x÷10=6(422)x÷65=2(423)11.7+5x=16.7(424)(9.4x-4)÷6=10.3(425)2.6x-2.1=8.3(426)9.9x+1.4x-3.2=98.5(427)2.7x+4.4x-1.9=140.1(428)2.7x-0.8x+3.8=7.6(429)97+4x=201(430)14x+8x-40=180(431)10x-7x+39=78(432)16x-2x-11=59(433)153-4x=17(434)15x-3x-22=134(435)x-17=32(436)9.6-x=1(437)5x=4.5(438)5.4x-2.6x=28(439)2.7+x=4.7(440)0.3x+4.7=14.6(441)(5x-16)÷2=27(442)47x-2×4=1.4(443)(16x-43)÷49=5(444)4x-3×47=51(445)x-5.8=1.8(446)6x-36×0.3=8.4(447)12x-2x=130(448)5.8x-3.8=7.8(449)x÷2=1.1(450)2(6x-22)=76(451)7x-2.2x=57.6(452)4.1x-2.4x+1.3=38.7(453)58x-34x-1.4=39.4(454)5x+2×3.8=18.6(455)11x+2.9=16.1(456)0.3x+4.3=20.8(457)2x+6×33=224(458)10.3+75x=25.3(459)2(x+49)=124(460)10(3x+2)=80(461)12.4-0.9x=4.3(462)(2x-9)÷2=8.5(463)1.2x-1.9×2=4.6(464)10x+11x+19=82(465)5(2x-2)=200(466)184+27x=292(467)17x+5.8=22.8(468)6x-4.1x-2.9=8.5(469)6x+16×4=112(470)x+78=151(471)5x+8.1x=144.1(472)16.4-2x=6.4(473)24x÷60=0.2(474)9x÷3=3(475)2(5x-20)=20(476)0.9x-0.3x-0.8=11.2(477)0.5x-2.1=14.9(478)90x÷45=4(479)1.2x÷24=0.7(480)2.4x+3.5=8.3(481)x÷9=5(482)3.2x+4.7x+1.4=80.4(483)3.4x-1.9x+4.7=46.7(484)34x-10x+2.8=34(485)20+x=86(486)100-21x=37(487)14x+15x-48=184(488)9x+5x=168(489)4.8x+8x-1.5=100.9(490)4x+26×7=298(491)4.1+x=12.2(492)66+24x=186(493)4.5x-0.4x-3.7=70.1(494)96x-12x+4.3=88.3(495)184÷x=2(496)4x÷8=1(497)(9.7x-9.6)÷4=17(498)36x-25x+0.2=24.4(499)18÷x=1(500)0.4x+0.2×26=20.4(501)71x=14.2(502)198-2x=74(503)11x+25x+1.2=37.2(504)(4.1x-7)÷6=0.2(505)4(x+33)=196(506)3.4x+4.4x-2.7=137.7(507)80-3x=14(508)11x-3x=32(509)63x+92x-4.3=104.2(510)2(1.8x-9.4)=42.4(511)0.6x+1.3x+2.7=48.3(512)8x+18=170(513)19x-16x-13=14(514)(2x-7.5)÷37=0.5(515)75x+53x+0.9=128.9(516)19x-4×2=87(517)3.6+x=9.8(518)(11x+2)÷4=61(519)75-x=15(520)10(1.4x+1.6)=44(521)4x-5.7=11.9(522)2(18x-18)=36(523)9-x=4.5(524)8x+60x-2.9=31.1(525)12x+37=97(526)(9.5x+5)÷5=20(527)8.5-1.1x=6.3(528)2(2x+4)=136(529)23x+49=118(530)36x-21x+2.9=13.4(531)6x+5x+46=233(532)x÷5=2.1(533)8x=13.6(534)2.5x+6.8x+3.3=49.8(535)17.2÷x=0.4(536)1x-0.7x=15(537)4(4x+13)=116(538)2.6x+1.4×13=31.2(539)87-x=41(540)x+52=136參考答案(1)x=4(2)x=0.4(3)x=45(4)x=5.2(5)x=30(6)x=0.5(7)x=5(8)x=2(9)x=3(10)x=4(11)x=13(12)x=5(13)x=22(14)x=7(15)x=0.7(16)x=0.5(17)x=12(18)x=6(19)x=1.7(20)x=42(21)x=8(22)x=7.3(23)x=1.3(24)x=2(25)x=5(26)x=0.6(27)x=0.4(28)x=37(29)x=10(30)x=168(31)x=190(32)x=7(33)x=0.2(34)x=19(35)x=5.5(36)x=17(37)x=3(38)x=14(39)x=10(40)x=5(41)x=4(42)x=18(43)x=2.2(44)x=5(45)x=87(46)x=0.5(47)x=14(48)x=6(49)x=2(50)x=23(51)x=2.4(52)x=9.8(53)x=15(54)x=22(55)x=0.4(56)x=7(57)x=1.7(58)x=1.3(59)x=15(60)x=41(61)x=0.7(62)x=0.6(63)x=89(64)x=3(65)x=1.1(66)x=2(67)x=4(68)x=4(69)x=2(70)x=13(71)x=14(72)x=6(73)x=6(74)x=1.9(75)x=0.5(76)x=5.9(77)x=48(78)x=0.2(79)x=5.6(80)x=8(81)x=185(82)x=11(83)x=9(84)x=4.2(85)x=18(86)x=0.8(87)x=47(88)x=91(89)x=2(90)x=9(91)x=0.4(92)x=8(93)x=10(94)x=120(95)x=0.2(96)x=15(97)x=9(98)x=30(99)x=2(100)x=36(101)x=29(102)x=66(103)x=3(104)x=4(105)x=4.6(106)x=0.7(107)x=92(108)x=23(109)x=3.8(110)x=3.2(111)x=3(112)x=19(113)x=6.8(114)x=4(115)x=14(116)x=9(117)x=20(118)x=17.6(119)x=34(120)x=0.2(121)x=0.2(122)x=87(123)x=0.4(124)x=2(125)x=16(126)x=18(127)x=5.1(128)x=2(129)x=3(130)x=8(131)x=12(132)x=74(133)x=2(134)x=4(135)x=3(136)x=4(137)x=8(138)x=3(139)x=9.9(140)x=26(141)x=12(142)x=3(143)x=1.7(144)x=19(145)x=5(146)x=3(147)x=18(148)x=4.6(149)x=58(150)x=18(151)x=0.4(152)x=7(153)x=6(154)x=43(155)x=9(156)x=0.6(157)x=3.2(158)x=0.9(159)x=87(160)x=2(161)x=10(162)x=3(163)x=5.2(164)x=11(165)x=4(166)x=12(167)x=6(168)x=7(169)x=15(170)x=20(171)x=10(172)x=0.2(173)x=6.5(174)x=28(175)x=13(176)x=3(177)x=2(178)x=3(179)x=1.6(180)x=95(181)x=10(182)x=6.3(183)x=0.4(184)x=11(185)x=53(186)x=10(187)x=97(188)x=33(189)x=3(190)x=62(191)x=4.8(192)x=27(193)x=10(194)x=4.1(195)x=31(196)x=6(197)x=8(198)x=9(199)x=26(200)x=14(201)x=1.1(202)x=1.3(203)x=21(204)x=17(205)x=38(206)x=3(207)x=11(208)x=9(209)x=0.4(210)x=2(211)x=1.3(212)x=79(213)x=5(214)x=2(215)x=8(216)x=2(217)x=0.5(218)x=6(219)x=8(220)x=15(221)x=12(222)x=2(223)x=5(224)x=4(225)x=34(226)x=11(227)x=12(228)x=1.1(229)x=0.5(230)x=11(231)x=16(232)x=10(233)x=0.2(234)x=3.3(235)x=48(236)x=7(237)x=45(238)x=11(239)x=12(240)x=2(241)x=1(242)x=29(243)x=97(244)x=19(245)x=52(246)x=8(247)x=10(248)x=20(249)x=33(250)x=7(251)x=0.9(252)x=0.2(253)x=0.9(254)x=30(255)x=16(256)x=0.7(257)x=8(258)x=1.5(259)x=8(260)x=23(261)x=8(262)x=18(263)x=28(264)x=2.5(265)x=2.1(266)x=23(267)x=9(268)x=95(269)x=17(270)x=4(271)x=26(272)x=4(273)x=9.6(274)x=8(275)x=87(276)x=14(277)x=5(278)x=21(279)x=4(280)x=7(281)x=8.5(282)x=0.3(283)x=2.6(284)x=78(285)x=11(286)x=5(287)x=73(288)x=12(289)x=86(290)x=31(291)x=40(292)x=6.8(293)x=3(294)x=18(295)x=14(296)x=0.9(297)x=2.9(298)x=0.9(299)x=95(300)x=0.8(301)x=10(302)x=18(303)x=11(304)x=53(305)x=4(306)x=1.2(307)x=0.6(308)x=16(309)x=2(310)x=25(311)x=4(312)x=3(313)x=0.5(314)x=44(315)x=16(316)x=7(317)x=4(318)x=0.3(319)x=9(320)x=33(321)x=6.7(322)x=2(323)x=2(324)x=73(325)x=110(326)x=45(327)x=4.4(328)x=5.5(329)x=7(330)x=17(331)x=8(332)x=1.3(333)x=99(334)x=67(335)x=18(336)x=30(337)x=9(338)x=0.3(339)x=7(340)x=9(341)x=0.5(342)x=6(343)x=24(344)x=30(345)x=9(346)x=6(347)x=10(348)x=5.9(349)x=0.3(350)x=26(351)x=0.9(352)x=68(353)x=2(354)x=35(355)x=12(356)x=37(357)x=6(358)x=1.2(359)x=22(360)x=10(361)x=0.3(362)x=10(363)x=3(364)x=8(365)x=6(366)x=10(367)x=0.8(368)x=15(369)x=30(370)x=8(371)x=24(372)x=4.7(373)x=0.8(374)x=11(375)x=7.2(376)x=2.6(377)x=11(378)x=29(379)x=6(380)x=6.9(381)x=8(382)x=5(383)x=0.8(384)x=2(385)x=3(386)x=2(387)x=5(388)x=4(389)x=0.2(390)x=9(391)x=4.5(392)x=30(393