五年级数学(方程)习题及答案汇编

五年级数学(方程)习题及答案汇编(1)10x÷20=4(2)44x÷22=4(3)2.8x÷14=1.2(4)(16x-38)÷9=10(5)0.4+x=2.5(6)64x-55x+3.5=11.6(7)1.3x-0.4x=62.1(8)5.7+x=13(9)9x+5x=98(10)4x÷14=12(11)18.4÷x=0.8(12)x-5=71(13)0.7x+5.7=16.9(14)4.4x+5.2x=28.8(15)0.2x-1.3=3.3(16)3x-2×37=31(17)16x=176(18)8x-3x+30=130(19)50+23x=165(20)24x+8×25=272(21)2(0.2x+2.2)=20.8(22)0.6x÷9=2.2(23)1.4x+0.4x=127.8(24)1.4+4.7x=20.2(25)0.2x+0.9x+2.2=111.1(26)76-3x=46(27)30-x=11(28)19.5-0.3x=18.9(29)1.3x-3.1×3=3.7(30)4.5x-1.6x-0.6=54.5(31)2x=7.8(32)13x-3x-19=41(33)2x=164(34)4x-14=166(35)2.6x+4.6x-2.5=83.9(36)7x-2x=100(37)8x+3x+15=180(38)11x-12×0.6=3.8(39)5x-17×0.9=1.7(40)x+9.2=18.3(41)x÷9=18(42)35x+60x-3.7=43.8(43)11x-2×57=18(44)0.7x+2.6x=108.9(45)8(2x-48)=144(46)x÷18=0.5(47)13x-11x=16(48)11x=176(49)15x+14x+24=343(50)19x-5x+3.1=21.3(51)0.5x-0.4×26=7.6(52)4x-15×10=26(53)49x-21x-1.5=23.7(54)(11x+49)÷13=8(55)161+25x=261(56)13.7+0.2x=17.7(57)x÷3=43(58)1.2+x=2.1(59)30x-33×0.2=11.4(60)16.4-2.6x=3.4(61)12x-10x-8=18(62)x÷91=0.2(63)6.3x-4.9x-0.9=1.9(64)(6x+12)÷2=81(65)18.2÷x=1.3(66)x÷24=6(67)176+45x=311(68)2(1.8x-9.4)=6.4(69)13x+15x-2=110(70)2x+0.6×5=9(71)7x-3x+18=110(72)73x-31x+2.7=32.1(73)5.3-x=5.1(74)5x-3x-45=13(75)61x+36x+3.6=42.4(76)2(4x+1.3)=18.6(77)178-4x=82(78)9x+53=188(79)21x÷24=0.7(80)x+86=182(81)3(4.6x+0.7)=43.5(82)62-x=38(83)2x-15=69(84)9.9-x=8.3(85)0.3x-5.7=8.7(86)(16x+38)÷6=49(87)2x+4×34=300(88)x÷13=0.3(89)x-30=35(90)13x+15×7=287(91)40x÷80=0.2(92)x-4.6=3.2(93)0.2x=10(94)8x-3x+4=109(95)15x+6x-16=257(96)3x+5x+31=47(97)5.7x-1.3x+1.8=37(98)3(0.2x+2.3)=12.3(99)2.4x-0.4x-3.7=24.3(100)2x+2.5=7.3(101)60+x=88(102)3.5x+5.4=19.4(103)0.7x=16.8(104)4x+15×0.2=22.2(105)69x÷6=23(106)2x-5×8=130(107)11x-13×6=98(108)3(x+18)=171(109)31x-16x-0.3=13.2(110)19x+11x+8=218(111)150-2x=140(112)0.8x÷24=0.6(113)8x-1.4=9.8(114)25x+5×17=235(115)x-1.2=3.9(116)x-56=30(117)4(10x+24)=176(118)94-x=49(119)18.3+0.5x=26.3(120)(18x+10)÷25=4(121)8.5+x=17.2(122)8x-14×0.7=3.8(123)14x+4x+13=175(124)(2x+1.3)÷3=7.1(125)29x-4x+0.5=78(126)4.1x-3.2x=9(127)3.5x-2.8x+4.7=20.8(128)2x÷36=4(129)0.2x+1×13=16.4(130)45x+4×2.1=26.4(131)x÷2=19(132)67x=134(133)(6.1x-8.1)÷8=8.9(134)60+x=137(135)13x+2x-30=105(136)2.4x-1.6=12.8(137)15x-5x+13=93(138)5x÷20=0.5(139)x-6.2=2(140)89x+11x-1.6=68.4(141)7(4x+5)=91(142)3(3.9x+2.9)=43.8(143)7.8x+1.2x+0.3=63.3(144)0.3x+3.1×2=14.3(145)(5.4x-8.8)÷4=22.1(146)1.4x+0.4×12=13.2(147)2.9x-1.4x=30(148)9.7+31x=19(149)6x+16=112(150)13x-5x+37=61(151)8x+2×91=358(152)7x-54=107(153)68x-55x+1.3=7.8(154)0.9x+2.2x=77.5(155)99+8x=203(156)5-3x=3.8(157)4(0.6x+6.7)=36.4(158)(13x-46)÷3=80(159)(3x+4.5)÷35=1.5(160)7÷x=1(161)5(3x-29)=80(162)2x=18(163)5x+49=129(164)3(3x+14)=123(165)6.8x-6.1x-1.6=3.3(166)x+7.4=10(167)61-x=14(168)60x-5=13(169)144-15x=84(170)x+77=175(171)18(1.7x-9)=21.6(172)(4x-27)÷45=1(173)2x=34(174)9x-2x=98(175)1x+2.4=7.4(176)57x÷38=0.3(177)145-12x=61(178)16x-14=130(179)5x+0.4x-2=100.6(180)13x+2×4.8=21.3(181)17.4-0.3x=14.1(182)13x-4x=63(183)12x+15x=270(184)4.8-0.3x=3(185)24x+56=200(186)82x-4x-3.3=82.5(187)1.1x-1.8=15.8(188)2.9x+6.2x=136.5(189)(3.9x+8.5)÷16=3.7(190)2.8x÷7=1.6(191)5.2x-1x=46.2(192)6(x-18)=66(193)14x-5x=36(194)4x-1.3×4=2.8(195)(0.3x+6.9)÷2=5.4(196)0.8x-0.5x+4.6=26.2(197)11(3x-24)=198(198)3.1+x=6.1(199)0.4x÷25=0.8(200)12.4+6x=14.8(201)8.4+x=9.6(202)17.9+3.1x=27.2(203)59x-57=120(204)0.6x=3.6(205)12x+4x=32(206)5x=9(207)8.1x-1x+3.7=67.6(208)x+43=142(209)1.6x+0.8x-1.8=55.8(210)7x+18×1.1=39.4(211)x+32=49(212)75-x=22(213)100-4x=72(214)91x+99x+0.3=152.3(215)6(3.6x+0.4)=45.6(216)77-x=40(217)11x+71x+4.3=78.1(218)49x=9.8(219)x-4.7=3.4(220)15+22x=34.8(221)x÷6=0.7(222)13x+15x-47=37(223)10x-2.9=5.1(224)91x-5.5=12.7(225)1.2x-0.2x-4.9=15.1(226)2.3x+5.4=12.3(227)(8.2x-2)÷6=10.6(228)5x-2×4=127(229)28+x=103(230)6.8x-5.4x-3.3=13.5(231)26+x=80(232)6.1x+4.1=16.3(233)2x+3.6×3=16.8(234)x+1.3=5.3(235)2x+8x=180(236)19x-5x+27=125(237)9x+44×0.3=18.6(238)7x÷2=3.5(239)2(8x+16)=176(240)159÷x=3(241)3(2.4x-6.3)=24.3(242)21x-5x-3.7=34.7(243)12(2x-41)=156(244)38-x=20(245)6x+21=81(246)2.2x-1.6x+4.6=27.4(247)15÷x=5(248)x÷24=0.3(249)(3x+7)÷7=13(250)0.5x+1.2x+0.4=117.7(251)1.7x+0.2x-3.6=17.3(252)2(6x-6.4)=35.2(253)(4.9x-6.8)÷5=10.4(254)4.9x-2.4x-2.6=2.4(255)71+30x=131(256)23x-8×4=129(257)17x+3.9=7.3(258)(16x-33)÷25=7(259)20x-12x-0.5=25.1(260)3(x-4.8)=27.6(261)17x+80x-2.5=16.9(262)1.6x-0.6x=8(263)8.5x-4.2x+0.5=39.2(264)11x-3x-47=73(265)(8.8x+2.7)÷5=19.9(266)17.9-5x=8.4(267)7x-21×0.2=7.7(268)8x-3x=25(269)4x=8(270)27+x=73(271)14+0.5x=24.5(272)86x-2.8=14.4(273)x+58=117(274)18.8-5x=5.3(275)3.4x+2.7x+3=143.3(276)(1.6x-2.8)÷2=10.6(277)3.6x+8.5x+4.5=101.3(278)5.2-x=4.6(279)11(x+4)=132(280)(3.3x-0.9)÷3=8.5(281)11.2+36x=22(282)8.2-x=5.3(283)x-3=62(284)3.6-x=3.2(285)145-8x=105(286)x+9.6=19.4(287)3(3.6x-1.8)=27(288)24x+37x-3.8=87.7(289)0.9x=18(290)35+x=128(291)2x÷11=0.6(292)6.8x+4.2x+3.8=80.8(293)8x-6x=26(294)6x+4.4=13.4(295)12.2-0.7x=10.1(296)93-x=20(297)27x+60x-0.6=51.6(298)2x÷17=1(299)x÷4=6(300)1.8x-0.3×5=18.3(301)41x-13x+0.5=50.9(302)2(2x+3)=102(303)18.4+33x=31.6(304)167-12x=11(305)15.6-2x=9.2(306)x+4.6=13.5(307)2x+7x-15=138(308)60x=120(309)7.3x+2.4x-3.5=93.5(310)0.3x-0.2×4=10.3(311)54x-50x-2.6=3(312)6x+5x-32=133(313)18x-4×0.6=17.4(314)x÷6=19(315)3x-2×3.9=3.3(316)5x-3x+0.3=3.5(317)(1.2x+8.3)÷13=1.1(318)156÷x=3(319)8x+10x=234(320)0.5x+5.4x=23.6(321)2.5x=17.5(322)(3x+39)÷12=10(323)31x+2×1.2=8.6(324)0.2x+0.3×42=14.8(325)x+57=125(326)4.7+17x=14.9(327)34x-8x-3.1=54.1(328)37x+36x+2.1=118.9(329)17x-6x-4=51(330)4x-2x+38=68(331)4.2x-2.1x=10.5(332)6÷x=0.6(333)2x+5.4=7.8(334)3x+6×29=348(335)5.2x-4.3x=6.3(336)x÷6=1.2(337)7x-5x-14=28(338)2.5x+0.3×24=27.2(339)11x+5x+14=126(340)4x=180(341)15x-2x-10=146(342)72÷x=6(343)3.3x+6.7x-1=19(344)68+x=79(345)56x-2.5=14.3(346)(2x-14)÷14=1(347)127+5x=227(348)17x=13.6(349)60x+42x+3=156(350)8x+2.5=14.5(351)7.4x+2.6=17.4(352)4x+21×0.2=23(353)40x+26=186(354)92x÷46=4(355)16(4x-24)=192(356)5x-2x+2=77(357)5.3+15x=14.3(358)48x-19x+0.7=41.3(359)10x-1.3=3.7(360)x-4.3=1.5(361)102÷x=2(362)119+24x=287(363)4.8x÷12=0.8(364)55x÷11=10(365)x÷44=0.3(366)8x-5x-4=68(367)0.2x+2.1×2=6.2(368)112÷x=14(369)33x+85x+4.1=39.5(370)169÷x=13(371)9.6x-3.9x+3.3=54.6(372)9.5x+9.7x+0.4=58(373)0.2x+1.5=19.7(374)4-x=2.8(375)19x=114(376)6+1x=22(377)4x+6x-22=228(378)x-12=24(379)48x-5×1.5=11.7(380)2x=14.6(381)14x÷7=1(382)98x+32x-4.2=112.8(383)(8x-28)÷28=1(384)7x-2x=110(385)9x+2x+11=121(386)7x+11=53(387)3x=159(388)2x-0.3×6=12.2(389)14x-7x+46=88(390)(4.7x-7.7)÷6=13.6(391)x-1.3=2.4(392)10(0.7x+1.3)=27(393)6x+4x=240(394)0.5x-0.8×5=8(395)5.1-0.3x=3.6(396)x-21=78(397)91÷x=13(398)10x+2.7=21.7(399)2.6x-1.1x=28.5(400)4x-4.5=11.5(401)8x+16x=168(402)10x+4x-21=217(403)0.9x+1.8=16.2(404)2x-1.2=16.8(405)20x÷15=8(406)x+2.3=10.8(407)x-2=6.9(408)7.9x-1.4x+4.4=62.9(409)11.8+1.2x=23.8(410)3x-3.6=7.5(411)x÷97=0.2(412)32x-24x+3.6=22(413)3x=12.9(414)16.5-3x=3(415)3(8x-45)=177(416)1.8x-0.9x-1=22.4(417)10.8÷x=2.7(418)8.3+x=18.1(419)(8x+26)÷9=10(420)0.7x+4.9×4=22.4(421)(12x-20)÷28=1(422)2x+27x+0.3=81.5(423)99x-13x-0.5=42.5(424)18.6-1.1x=4.3(425)0.4÷x=0.2(426)105÷x=35(427)(x-5)÷7=3(428)12x=9.6(429)6x+58=118(430)(12x-48)÷9=8(431)17x-5x-35=85(432)5.8x+9.7x=155(433)x+98=132(434)4x+58x-3=34.2(435)x-4.4=5.1(436)12x-7x=75(437)x÷8=14(438)82-x=64(439)66x+83x-4.5=40.2(440)9x+13×0.2=17.9(441)3.4x+3.3x-4.3=116.3(442)2x+4×42=214(443)(4.9x-2.8)÷21=0.8(444)(8.7x+9.9)÷30=1.2(445)11x-31=123(446)145-17x=26(447)15(3x+4)=195(448)18+28x=130(449)(8.7x-9.6)÷2=38.7(450)x+0.3=8.9(451)6x÷4=1.2(452)x-35=48(453)6.9+9.1x=25.1(454)5x+11x+2.9=42.9(455)2x+6×1.2=8.4(456)(0.4x+4.2)÷2=4.5(457)2.1+85x=19.1(458)0.3x=1.2(459)2x÷8=22(460)6x-47=109(461)4(0.3x-3.5)=32.8(462)11x-5×3=95(463)80x-42=118(464)5(0.4x+7)=41(465)x+1.5=8.8(466)15(3x-3.3)=40.5(467)2x+5.4=9.6(468)2x+5.4=6.8(469)6+x=12.6(470)1.2x÷52=0.3(471)4.4x+6.2x=159(472)5x+6x+3.5=100.3(473)5.2x-4.5x=11.9(474)2.7x-2.4x-1.3=1.1(475)10.1-0.3x=8.6(476)22x-5×32=38(477)5(11x-6)=135(478)(4x+28)÷7=16(479)11.4+5x=26.4(480)8.8-x=6.6(481)9.5x÷5=3.8(482)3x+52=232(483)2x-5=13(484)0.3x-4.2=11.4(485)1.8x+1.5x+4.6=149.8(486)15x+4x-3.8=20.9(487)9x÷36=0.4(488)19x+13x-26=230(489)9.9x+9.1x-0.9=132.1(490)17.5-3.4x=7.3(491)x-12=64(492)(9x+9)÷18=11(493)16.1-6x=11.9(494)30x-37=143(495)x÷7=27(496)8x+3.6=12.4(497)3x+2x+10=215(498)3x=5.4(499)2x-1.1=4.3(500)x+7.6=14.9(501)6.8-x=5.9(502)5.5÷x=0.5(503)8x-1.5x+1.2=40.2(504)7x+36×2=163(505)x÷5=0.9(506)x+40=110(507)2x+9x=165(508)1.7x+6.2x+0.3=47.7(509)57+39x=252(510)5(x-26)=50(511)x÷70=2(512)44+x=129(513)10.4÷x=0.4(514)2x=2.2(515)12.6÷x=0.9(516)77+x=131(517)5(1.1x-6.7)=43.5(518)0.4x+4.6=11.8(519)4x+2×28=212(520)4.7x-0.7×15=3.6(521)12.6-12x=3(522)x-1.4=2.9(523)x-41=47(524)2.8x+0.2x=45(525)13.1-8x=1.9(526)1.4x=18.2(527)6x-11×1.5=1.5(528)69x-24x-2.3=60.7(529)9.7x+3.4x-4.9=34.4(530)5.7-2x=2.7(531)8x+3x=187(532)9.5-x=5.9(533)0.2+x=2.6(534)19.8+2.6x=25(535)x+97=146(536)0.2x-1.8=2.8(537)0.8x-0.7×23=2.3(538)3(x+5)=57(539)12x+13x+28=228(540)(1.9x+5.5)÷10=3.4参考答案(1)x=8(2)x=2(3)x=6(4)x=8(5)x=2.1(6)x=0.9(7)x=69(8)x=7.3(9)x=7(10)x=42(11)x=23(12)x=76(13)x=16(14)x=3(15)x=23(16)x=35(17)x=11(18)x=20(19)x=5(20)x=3(21)x=41(22)x=33(23)x=71(24)x=4(25)x=99(26)x=10(27)x=19(28)x=2(29)x=10(30)x=19(31)x=3.9(32)x=6(33)x=82(34)x=45(35)x=12(36)x=20(37)x=15(38)x=1(39)x=3.4(40)x=9.1(41)x=162(42)x=0.5(43)x=12(44)x=33(45)x=33(46)x=9(47)x=8(48)x=16(49)x=11(50)x=1.3(51)x=36(52)x=44(53)x=0.9(54)x=5(55)x=4(56)x=20(57)x=129(58)x=0.9(59)x=0.6(60)x=5(61)x=13(62)x=18.2(63)x=2(64)x=25(65)x=14(66)x=144(67)x=3(68)x=7(69)x=4(70)x=3(71)x=23(72)x=0.7(73)x=0.2(74)x=29(75)x=0.4(76)x=2(77)x=24(78)x=15(79)x=0.8(80)x=96(81)x=3(82)x=24(83)x=42(84)x=1.6(85)x=48(86)x=16(87)x=82(88)x=3.9(89)x=65(90)x=14(91)x=0.4(92)x=7.8(93)x=50(94)x=21(95)x=13(96)x=2(97)x=8(98)x=9(99)x=14(100)x=2.4(101)x=28(102)x=4(103)x=24(104)x=4.8(105)x=2(106)x=85(107)x=16(108)x=39(109)x=0.9(110)x=7(111)x=5(112)x=18(113)x=1.4(114)x=6(115)x=5.1(116)x=86(117)x=2(118)x=45(119)x=16(120)x=5(121)x=8.7(122)x=1.7(123)x=9(124)x=10(125)x=3.1(126)x=10(127)x=23(128)x=72(129)x=17(130)x=0.4(131)x=38(132)x=2(133)x=13(134)x=77(135)x=9(136)x=6(137)x=8(138)x=2(139)x=8.2(140)x=0.7(141)x=2(142)x=3(143)x=7(144)x=27(145)x=18(146)x=6(147)x=20(148)x=0.3(149)x=16(150)x=3(151)x=22(152)x=23(153)x=0.5(154)x=25(155)x=13(156)x=0.4(157)x=4(158)x=22(159)x=16(160)x=7(161)x=15(162)x=9(163)x=16(164)x=9(165)x=7(166)x=2.6(167)x=47(168)x=0.3(169)x=4(170)x=98(171)x=6(172)x=18(173)x=17(174)x=14(175)x=5(176)x=0.2(177)x=7(178)x=9(179)x=19(180)x=0.9(181)x=11(182)x=7(183)x=10(184)x=6(185)x=6(186)x=1.1(187)x=16(188)x=15(189)x=13(190)x=4(191)x=11(192)x=29(193)x=4(194)x=2(195)x=13(196)x=72(197)x=14(198)x=3(199)x=50(200)x=0.4(201)x=1.2(202)x=3(203)x=3(204)x=6(205)x=2(206)x=1.8(207)x=9(208)x=99(209)x=24(210)x=2.8(211)x=17(212)x=53(213)x=7(214)x=0.8(215)x=2(216)x=37(217)x=0.9(218)x=0.2(219)x=8.1(220)x=0.9(221)x=4.2(222)x=3(223)x=0.8(224)x=0.2(225)x=20(226)x=3(227)x=8(228)x=27(229)x=75(230)x=12(231)x=54(232)x=2(233)x=3(234)x=4(235)x=18(236)x=7(237)x=0.6(238)x=1(239)x=9(240)x=53(241)x=6(242)x=2.4(243)x=27(244)x=18(245)x=10(246)x=38(247)x=3(248)x=7.2(249)x=28(250)x=69(251)x=11(252)x=4(253)x=12(254)x=2(255)x=2(256)x=7(257)x=0.2(258)x=13(259)x=3.2(260)x=14(261)x=0.2(262)x=8(263)x=9(264)x=15(265)x=11(266)x=1.9(267)x=1.7(268)x=5(269)x=2(270)x=46(271)x=21(272)x=0.2(273)x=59(274)x=2.7(275)x=23(276)x=15(277)x=8(278)x=0.6(279)x=8(280)x=8(281)x=0.3(282)x=2.9(283)x=65(284)x=0.4(285)x=5(286)x=9.8(287)x=3(288)x=1.5(289)x=20(290)x=93(291)x=3.3(292)x=7(293)x=13(294)x=1.5(295)x=3(296)x=73(297)x=0.6(298)x=8.5(299)x=24(300)x=11(301)x=1.8(302)x=24(303)x=0.4(304)x=13(305)x=3.2(306)x=8.9(307)x=17(308)x=2(309)x=10(310)x=37(311)x=1.4(312)x=15(313)x=1.1(314)x=114(315)x=3.7(316)x=1.6(317)x=5(318)x=52(319)x=13(320)x=4(321)x=7(322)x=27(323)x=0.2(324)x=11(325)x=68(326)x=0.6(327)x=2.2(328)x=1.6(329)x=5(330)x=15(331)x=5(332)x=10(333)x=1.2(334)x=58(335)x=7(336)x=7.2(337)x=21(338)x=8(339)x=7(340)x=45(341)x=12(342)x=12(343)x=2(344)x=11(345)x=0.3(346)x=14(347)x=20(348)x=0.8(349)x=1.5(350)x=1.5(351)x=2(352)x=4.7(353)x=4(354)x=2(355)x=9(356)x=25(357)x=0.6(358)x=1.4(359)x=0.5(360)x=5.8(361)x=51(362)x=7(363)x=2(364)x=2(365)x=13.2(366)x=24(367)x=10(368)x=8(369)x=0.3(370)x=13(371)x=9(372)x=3(373)x=91(374)x=1.2(375)x=6(376)x=16(377)x=25(378)x=36(379)x=0.4(380)x=7.3(381)x=0.5(382)x=0.9(383)x=7(384)x=22(385)x=10(386)x=6(387)x=53(388)x=7(389)x=6(390)x=19(391)x=3.7(392)x=2(393)x=24(394)x=24(395)