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)19.7-0.2x=17.1(2)11.6÷x=2.9(3)x÷20=3(4)11x+6x+2.8=47(5)42x-2×2.6=7.4(6)0.8x-4.1=13.5(7)0.8x+1.2x+0.9=62.9(8)2x÷18=1(9)75x-21x-1.4=47.2(10)2.6x=13(11)x-15=42(12)15x-10x-6=34(13)9.9x-0.9x+1.6=46.6(14)12.9÷x=0.3(15)26x-44×2=68(16)4.6x-1.2x+0.7=61.9(17)2x=0.4(18)12x÷30=0.2(19)(8x+36)÷4=21(20)x-40=24(21)7.2x-5.5x-1=5.8(22)4.6x+5.8=15(23)3x+72×2=270(24)117+5x=217(25)87-x=32(26)8x÷5=2.4(27)70+x=128(28)16x-3x+38=168(29)0.8x÷4=4(30)1x+0.8x=135(31)157-4x=113(32)5(21x-39)=120(33)60-x=38(34)2.4x-2.3×4=7.6(35)9x+10x=57(36)4.2x+0.2×19=12.2(37)9(0.4x+0.2)=16.2(38)15x-3.8=14.2(39)16x+64x-3=85(40)97-x=81(41)29x+9x+3=124.6(42)7x-13×0.3=3.8(43)9x-6×0.4=13.8(44)2(0.6x-4.2)=4.8(45)8x+12x-17=303(46)92x-10x+0.6=49.8(47)0.4x+4.5=14.9(48)3x+32=209(49)35+x=60(50)28x=140(51)3x+2x-38=227(52)17.1+26x=27.5(53)15x=13.5(54)(0.5x+5.7)÷16=0.7(55)(7x-26)÷9=8(56)9x+10×0.3=21(57)91x+30x-0.5=35.8(58)4.5x÷36=0.5(59)22x-10=122(60)13x+3×22=261(61)3.7-x=3.1(62)9÷x=1.5(63)67-x=48(64)x+13=56(65)(5x+9)÷2=17(66)x÷8=23(67)x-6.5=1.1(68)3.7+x=4.4(69)56x+40=208(70)x÷41=2(71)18.4+0.8x=38.4(72)0.2x-3.2=10.4(73)5.4x-4.2x-3.2=11.2(74)7(x+17)=161(75)7x-2x+36=66(76)3x-2×51=42(77)22÷x=11(78)21+x=109(79)1.9x+6.6x+0.5=34.5(80)2(13x+3)=162(81)10x+20×0.4=25(82)2x÷6=5(83)14.1-2x=2.7(84)2(2x+18)=100(85)2(8x+25)=82(86)(0.7x+6.4)÷5=3.8(87)6.9+x=11.5(88)2(9.8x-7.5)=24.2(89)5.6+x=13.7(90)(4x+0.4)÷2=14.2(91)x-7.8=2.1(92)9x-7x=36(93)(5.1x-2.2)÷8=11.2(94)0.3x÷6=2.4(95)9.9+x=13.5(96)x÷4=4.4(97)170÷x=5(98)x÷7=1.3(99)18x-6x=108(100)13.7+5x=19.2(101)x÷6=2.1(102)2x-38×2=32(103)5x+7×2.2=20.9(104)28x+55x-2.7=30.5(105)5.7x-4.7x+4=12(106)64x-6x-4.2=48(107)11x+3x+2=24.4(108)19x-3x+2.6=5.8(109)2.9x-0.9x-4=6(110)3x÷5=6(111)60x÷5=36(112)x+1.8=11.5(113)10x=4(114)x÷6=0.6(115)2.9+x=7.5(116)44+10x=204(117)76x-34x+3.6=24.6(118)x+7.8=16.9(119)(3.3x-7)÷5=1.9(120)8x+2x+6=166(121)(14x+32)÷38=6(122)1.8x+1.3x+4.4=69.5(123)45x+17=152(124)12÷x=1.5(125)2x=8.6(126)0.5x-1.7×7=5.6(127)14.2+0.7x=19.1(128)0.6x+0.8×11=16(129)11.5-2x=3.5(130)x÷71=0.2(131)3x+2×35=139(132)3.8x-0.3x-0.8=90.2(133)1.9x+2.8×2=13.2(134)29x=8.7(135)5x+41x+3.2=35.4(136)60x-48x-1.4=2.2(137)71x-14x-1.9=26.6(138)82x+25x-1.5=84.1(139)4(6x+6)=168(140)0.3x-0.3×20=6(141)19.9-11x=11.1(142)0.7x+1=14.3(143)6.1x+3.2x-4=98.3(144)1.2x+5.4x+0.8=60.2(145)91x-32x+4.5=63.5(146)16x+12x=224(147)4x-2×18=60(148)112-19x=36(149)x+5.3=8.1(150)7.1x-5.4x-0.4=9.8(151)9x+9.9x=75.6(152)43x-39x-2.6=3.4(153)0.4x=16.4(154)86+x=137(155)12x-4x+11=83(156)7(x-14)=126(157)x÷3=6(158)x÷18=0.3(159)9.3x-1.2x-2.6=29.8(160)9-x=8(161)7.1x-0.8x=56.7(162)15x-11x=40(163)9.9x-8.6x=6.5(164)3.8x-0.7x+4.7=57.4(165)13.3-4.7x=3.9(166)(3.6x+6.6)÷6=10.1(167)7x-2x-6=69(168)39x+30=147(169)15x-9x+15=27(170)2.8x-0.2×21=4.2(171)1.8x-5.9=8.5(172)2.5x-5.8=4.2(173)(5.8x+9.7)÷17=3.3(174)5x-2x+35=101(175)18x÷12=12(176)(7x-42)÷18=7(177)67x=13.4(178)155+11x=210(179)0.7x-3.1=6.7(180)3x÷2=1.5(181)10x-6x+22=66(182)24÷x=2(183)(3.1x+2)÷2=4.1(184)x+40=99(185)14.3-2.2x=1.1(186)12x÷6=0.6(187)2x-10=70(188)43x=12.9(189)3(14x-29)=123(190)x+32=107(191)(1.1x+6.4)÷12=2(192)3+20x=9(193)4x=72(194)1.2x÷4=2.4(195)4.3+x=10.6(196)5.7x-3.3x=33.6(197)2.5x-0.8×7=11.9(198)34x-38=98(199)5(2x-22)=150(200)12.4-8x=1.2(201)55+x=151(202)4.4x+6x+0.7=52.7(203)2(0.6x+9.3)=33(204)16x+72x-1.1=34.1(205)8.3-x=7(206)x+6.1=11.5(207)2.7x+6.3x-2.8=42.2(208)9.6-x=9.2(209)9.6x÷16=1.2(210)40-x=17(211)8x-2.7=6.1(212)18x÷9=0.4(213)2(22x+3)=182(214)5.1x+3.6x=52.2(215)6.5+2.4x=16.1(216)14x-3x-27=28(217)6.8x-0.8x-2.3=75.7(218)4.3-x=3.6(219)4.1x-2.4=9.9(220)x÷6=2.7(221)8.6x+8.2x-3=97.8(222)x-1.9=4.3(223)35+x=84(224)3x+8x=264(225)(6.9x+2.7)÷3=30.8(226)62-x=14(227)0.5x-5.2=6.8(228)9x+3x-26=130(229)8.3-x=4.8(230)1.1x-1.6×7=2(231)3.9x+0.8×13=18.2(232)x+24=30(233)15.7-0.7x=14.3(234)15.2-10x=9.2(235)x+42=95(236)0.3x=1.5(237)9.4+0.2x=17.6(238)9.4x-5x+4.6=44.2(239)13x+46×3=216(240)25x+11×0.9=17.4(241)(5.6x-1.3)÷9=6.7(242)10x+3x=182(243)58-8x=10(244)1x=7(245)5.4+x=13(246)x-6.7=1.8(247)2x-4.3=13.3(248)(3.6x-9.6)÷4=7.5(249)2(0.6x-4.5)=3(250)10x-4.6=8.4(251)3x-3.6=11.4(252)10x-5x-25=10(253)41x+20×0.9=34.4(254)17x+31x+2.9=79.7(255)2.3+3x=5.6(256)2x+4×3.2=13.8(257)x÷2=9(258)14.7-0.8x=8.3(259)2(2.2x-8.8)=8.8(260)16x+2.3=8.7(261)4(0.7x+1.4)=19.6(262)6.6÷x=0.2(263)x+1.6=5.7(264)8x-4x-31=33(265)67+21x=109(266)x÷13=7(267)6x-3×20=138(268)3x+22×7=244(269)39x=15.6(270)4x-44=16(271)19.8+0.3x=35.7(272)x÷34=3(273)(15x-49)÷2=43(274)x÷4=13(275)3x÷10=1.2(276)17x-11x+0.5=16.7(277)1x=16(278)16x-10x=30(279)32x=192(280)3(4.4x-4.7)=38.7(281)3(0.2x+4.2)=40.2(282)4x=20(283)4x+8x+10=286(284)1.1x-2=13.4(285)0.7x+2.9x=97.2(286)0.2x-1.5×2=4.4(287)3x+5.8=22.3(288)3x÷13=1.5(289)13x+18x+0.5=53.2(290)x+0.9=2.8(291)2x-1.4x=17.4(292)8x-6x-14=28(293)26x+17x+3.5=106.7(294)9(3x-29)=144(295)2(x-3.4)=15.2(296)(15x+21)÷4=39(297)0.2x+4=21.2(298)6x+9.7x+4.8=83.3(299)13.2+0.5x=16.7(300)10-22x=3.4(301)7x-51=110(302)34x-58=78(303)7.6x+2x-1.6=46.4(304)x÷21=0.6(305)3(3x-0.2)=26.4(306)(3.6x+1.2)÷4=4.8(307)(5.1x-8.1)÷6=2.9(308)3x+5.9=17(309)9x-2x=154(310)1.1x÷33=0.2(311)18-1x=1(312)x-2.5=2.4(313)10-0.4x=6.8(314)8x-3x+20=120(315)0.2x+2.6=3(316)6.8x-3.2x=21.6(317)60x-42x+1.9=10.9(318)x-66=11(319)21x-10x+2.3=49.6(320)8.8x+7.8x=83(321)x÷6=1.8(322)171-2x=67(323)70÷x=5(324)(7.7x-7.4)÷10=8.5(325)x+7.5=7.8(326)74-2x=66(327)1x+1.9=6.9(328)9.2-3x=2.9(329)x-2=41(330)(8x-31)÷49=1(331)86+2x=210(332)9.2x+8x-3.7=151.1(333)7x+9x-41=199(334)143-34x=75(335)12x=18(336)1x+1=12(337)(1.9x-8.5)÷4=3.1(338)31x-10×1.1=1.4(339)x-0.5=4.7(340)2(4x+26)=140(341)19x-17x=18(342)148-3x=49(343)2x=60(344)13x+8x+8=323(345)2.7x=18.9(346)12x+15x=81(347)11(2x-9)=143(348)5x-11×0.5=3.5(349)3x+30=228(350)3.1x+4.9x-3.7=92.3(351)11(9x-29)=176(352)2(0.4x+7.6)=32.8(353)21x÷42=4(354)2.7x+0.2x=95.7(355)(x+37)÷13=4(356)13x-18×0.2=15.9(357)17x-12x=25(358)1.1x-0.4x=18.9(359)7x+15x=198(360)15(1.1x-1.1)=16.5(361)5.2x-2.6x-2.1=16.1(362)2x+4=7.4(363)19.3+0.2x=29.7(364)8x+4.2x=48.8(365)1.2x+3.1×2=9.8(366)x+8.9=10(367)1.5x-0.6x+3.2=31.1(368)(14x+24)÷6=46(369)6x-18=36(370)0.2x+4.2=14.4(371)12x+4x=160(372)x-6=25(373)8.2-x=2.3(374)153+7x=328(375)6x-3x=51(376)7.2x+0.3x+0.3=90.3(377)39x-34=161(378)15.3÷x=0.3(379)92x+14x-3=103(380)93x-39=147(381)2x+5x+23=219(382)1.2x-1.1=9.7(383)16x-15×2=114(384)5x+17x+44=242(385)12x+30×0.2=13.2(386)22x+25x-0.7=65.1(387)9x+21=174(388)2x=112(389)21x-2×4.7=1.1(390)21x-19×0.2=13(391)3.9x÷6=2.6(392)1.3x=9.1(393)4x-0.4x+2=81.2(394)0.8x+0.5x-1.2=62.5(395)x-41=58(396)0.3x+0.5×23=16.9(397)(6.5x-9.6)÷11=0.9(398)12x÷54=0.2(399)22x+3x+4.2=81.7(400)(4x+24)÷10=14(401)2(1.3x+2.3)=20.2(402)10.2÷x=3.4(403)2x-10×4=42(404)46x=184(405)x-47=42(406)6.4-x=1.1(407)3.3+17x=11.8(408)(2.3x-1.1)÷2=16.7(409)80x-9x-1.7=48(410)16x-5x-28=38(411)2.9x+4.1×3=21(412)79x-45x-4.5=2.3(413)1.9x+5.6x=67.5(414)4.9+83x=21.5(415)59+2x=179(416)x-1.8=6.7(417)28x+2×13=138(418)x-0.4=3.8(419)16x+5x-16=194(420)x+84=182(421)(4x+16)÷4=16(422)7.9x+0.5x=84(423)95x-13x+2.4=84.4(424)2x+3.4=6.4(425)5x+37=92(426)19x-9x+25=105(427)2x+2.3=3.9(428)13(2x+3)=117(429)11x÷6=33(430)6x÷8=1.8(431)54x+8x-4=107.6(432)12.7+0.3x=20.5(433)1.8x+3.6=14.4(434)x-40=20(435)69x+5.1=18.9(436)6.5x-4.2x=11.5(437)1.5x-0.7x+2.7=20.3(438)2x=26(439)18.7+2x=23.1(440)5-x=4.7(441)x+43=59(442)37x-3×4.6=4.7(443)93x-59x-0.4=33.6(444)22x+41=195(445)0.9+x=5.5(446)15x+12x-35=100(447)4.9÷x=0.7(448)144-7x=53(449)65x-3.9=15.6(450)18x+6×12=144(451)(13x-31)÷2=108(452)6.5x-2.6x+2.2=29.5(453)x+69=167(454)15.9-0.8x=11.9(455)4x+3x+31=283(456)15x-27×3=24(457)(10x-36)÷27=2(458)24x÷3=32(459)68+x=94(460)4(1.2x+8.5)=43.6(461)11x-4.8=1.8(462)180-16x=148(463)5x=120(464)0.8x-0.2×25=3(465)8x+7x-3=282(466)69+x=92(467)16x+5x-43=188(468)1.1+0.8x=18.7(469)17x+16x-25=74(470)(13x+30)÷2=93(471)2x+4.1=23.1(472)(3x-22)÷5=10(473)2.1x-0.6×4=14.4(474)3(2x-36)=36(475)5.2x-3.6x-3.9=20.1(476)15x-4x-42=90(477)2.8x+1.5×2=11.4(478)14x-2x=72(479)24x-4×19=68(480)6.4+x=11.6(481)8x-3x-5=90(482)6x÷12=16(483)25+30x=145(484)x+1.1=7.5(485)33+x=48(486)3.8-4x=1(487)x-1.2=2.7(488)5(1.9x-9.6)=18.5(489)12x+10x+7=249(490)99-x=95(491)(18x-18)÷39=6(492)3(5x-25)=135(493)17x=119(494)15x+6×2.3=19.8(495)26x-9x-2.4=23.1(496)4.2x-0.4x=22.8(497)7x+28=175(498)64-x=46(499)30x+56x-2.8=83.2(500)x+79=106(501)0.3x+1.7x-3.7=110.3(502)3.6+7x=18.3(503)7x+3x+14=54(504)102÷x=3(505)5.9x-4.5x=19.6(506)8.4+5x=15.4(507)3(13x+3)=87(508)17x-3x+3.6=59.6(509)(3x-24)÷16=3(510)1.5x+1.1x+2.1=51.5(511)17x-10x+25=81(512)5x-1.9=15.6(513)22x+4.8=20.2(514)12.7-14x=8.5(515)7x+4x=308(516)x-52=34(517)2.3x+7x+1.5=113.1(518)6x+7×1.9=21.7(519)15x+2x=51(520)5x÷9=20(521)6.8÷x=0.2(522)2(1.9x+5.1)=40.6(523)91+2x=177(524)3.6x÷20=0.9(525)0.5x+0.2×32=17.4(526)22x+9x+3.1=111.6(527)155÷x=31(528)52÷x=4(529)100÷x=10(530)8x+2×79=342(531)5x+0.9x-0.5=11.3(532)2x+8×13=158(533)5x+18x+34=103(534)175÷x=25(535)2(0.8x+3.3)=16.2(536)22-x=20(537)53x-4.9=11(538)4.7-0.2x=4.1(539)x÷9=3(540)3.3x=19.8參考答案(1)x=13(2)x=4(3)x=60(4)x=2.6(5)x=0.3(6)x=22(7)x=31(8)x=9(9)x=0.9(10)x=5(11)x=57(12)x=8(13)x=5(14)x=43(15)x=6(16)x=18(17)x=0.2(18)x=0.5(19)x=6(20)x=64(21)x=4(22)x=2(23)x=42(24)x=20(25)x=55(26)x=1.5(27)x=58(28)x=10(29)x=20(30)x=75(31)x=11(32)x=3(33)x=22(34)x=7(35)x=3(36)x=2(37)x=4(38)x=1.2(39)x=1.1(40)x=16(41)x=3.2(42)x=1.1(43)x=1.8(44)x=11(45)x=16(46)x=0.6(47)x=26(48)x=59(49)x=25(50)x=5(51)x=53(52)x=0.4(53)x=0.9(54)x=11(55)x=14(56)x=2(57)x=0.3(58)x=4(59)x=6(60)x=15(61)x=0.6(62)x=6(63)x=19(64)x=43(65)x=5(66)x=184(67)x=7.6(68)x=0.7(69)x=3(70)x=82(71)x=25(72)x=68(73)x=12(74)x=6(75)x=6(76)x=48(77)x=2(78)x=88(79)x=4(80)x=6(81)x=1.7(82)x=15(83)x=5.7(84)x=16(85)x=2(86)x=18(87)x=4.6(88)x=2(89)x=8.1(90)x=7(91)x=9.9(92)x=18(93)x=18(94)x=48(95)x=3.6(96)x=17.6(97)x=34(98)x=9.1(99)x=9(100)x=1.1(101)x=12.6(102)x=54(103)x=1.1(104)x=0.4(105)x=8(106)x=0.9(107)x=1.6(108)x=0.2(109)x=5(110)x=10(111)x=3(112)x=9.7(113)x=0.4(114)x=3.6(115)x=4.6(116)x=16(117)x=0.5(118)x=9.1(119)x=5(120)x=16(121)x=14(122)x=21(123)x=3(124)x=8(125)x=4.3(126)x=35(127)x=7(128)x=12(129)x=4(130)x=14.2(131)x=23(132)x=26(133)x=4(134)x=0.3(135)x=0.7(136)x=0.3(137)x=0.5(138)x=0.8(139)x=6(140)x=40(141)x=0.8(142)x=19(143)x=11(144)x=9(145)x=1(146)x=8(147)x=24(148)x=4(149)x=2.8(150)x=6(151)x=4(152)x=1.5(153)x=41(154)x=51(155)x=9(156)x=32(157)x=18(158)x=5.4(159)x=4(160)x=1(161)x=9(162)x=10(163)x=5(164)x=17(165)x=2(166)x=15(167)x=15(168)x=3(169)x=2(170)x=3(171)x=8(172)x=4(173)x=8(174)x=22(175)x=8(176)x=24(177)x=0.2(178)x=5(179)x=14(180)x=1(181)x=11(182)x=12(183)x=2(184)x=59(185)x=6(186)x=0.3(187)x=40(188)x=0.3(189)x=5(190)x=75(191)x=16(192)x=0.3(193)x=18(194)x=8(195)x=6.3(196)x=14(197)x=7(198)x=4(199)x=26(200)x=1.4(201)x=96(202)x=5(203)x=12(204)x=0.4(205)x=1.3(206)x=5.4(207)x=5(208)x=0.4(209)x=2(210)x=23(211)x=1.1(212)x=0.2(213)x=4(214)x=6(215)x=4(216)x=5(217)x=13(218)x=0.7(219)x=3(220)x=16.2(221)x=6(222)x=6.2(223)x=49(224)x=24(225)x=13(226)x=48(227)x=24(228)x=13(229)x=3.5(230)x=12(231)x=2(232)x=6(233)x=2(234)x=0.6(235)x=53(236)x=5(237)x=41(238)x=9(239)x=6(240)x=0.3(241)x=11(242)x=14(243)x=6(244)x=7(245)x=7.6(246)x=8.5(247)x=8.8(248)x=11(249)x=10(250)x=1.3(251)x=5(252)x=7(253)x=0.4(254)x=1.6(255)x=1.1(256)x=0.5(257)x=18(258)x=8(259)x=6(260)x=0.4(261)x=5(262)x=33(263)x=4.1(264)x=16(265)x=2(266)x=91(267)x=33(268)x=30(269)x=0.4(270)x=15(271)x=53(272)x=102(273)x=9(274)x=52(275)x=4(276)x=2.7(277)x=16(278)x=5(279)x=6(280)x=4(281)x=46(282)x=5(283)x=23(284)x=14(285)x=27(286)x=37(287)x=5.5(288)x=6.5(289)x=1.7(290)x=1.9(291)x=29(292)x=21(293)x=2.4(294)x=15(295)x=11(296)x=9(297)x=86(298)x=5(299)x=7(300)x=0.3(301)x=23(302)x=4(303)x=5(304)x=12.6(305)x=3(306)x=5(307)x=5(308)x=3.7(309)x=22(310)x=6(311)x=17(312)x=4.9(313)x=8(314)x=20(315)x=2(316)x=6(317)x=0.5(318)x=77(319)x=4.3(320)x=5(321)x=10.8(322)x=52(323)x=14(324)x=12(325)x=0.3(326)x=4(327)x=5(328)x=2.1(329)x=43(330)x=10(331)x=62(332)x=9(333)x=15(334)x=2(335)x=1.5(336)x=11(337)x=11(338)x=0.4(339)x=5.2(340)x=11(341)x=9(342)x=33(343)x=30(344)x=15(345)x=7(346)x=3(347)x=11(348)x=1.8(349)x=66(350)x=12(351)x=5(352)x=22(353)x=8(354)x=33(355)x=15(356)x=1.5(357)x=5(358)x=27(359)x=9(360)x=2(361)x=7(362)x=1.7(363)x=52(364)x=4(365)x=3(366)x=1.1(367)x=31(368)x=18(369)x=9(370)x=51(371)x=10(372)x=31(373)x=5.9(374)x=25(375)x=17(376)x=12(377)x=5(378)x=51(379)x=1(380)x=2(381)x=28(382)x=9(383)x=9(384)x=9(385)x=0.6(386)x=1.4(387)x=17(388)x=56(389)x=0.5(390)x=0.8(391)x=4(392)x=7(393)x=22