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)x-63=15(2)x-5.2=1.9(3)5x=16.5(4)3.6x+5.6x=92(5)6.1x-3.2x=29(6)(11x-20)÷9=21(7)19x-12x+32=74(8)52x+42x-3.2=166(9)(17x-6)÷14=2(10)28(0.2x+0.7)=42(11)2x+10x=96(12)40-x=37(13)(15x-31)÷2=22(14)115-46x=23(15)31-2x=27(16)0.8x+4.7×4=21.2(17)6.6x+4.9x=126.5(18)x÷7=1.3(19)132÷x=22(20)12x+9x+37=247(21)13x+8x-13=92(22)35x-3×4.2=1.4(23)9.5+0.4x=12.3(24)1.1x-0.7×12=9.2(25)1.5x=19.5(26)x-0.4=8.3(27)18x-32=40(28)33-5x=18(29)2x-4×13=134(30)x+7.6=12.8(31)14x-31=109(32)11.6+0.3x=19.1(33)18.1+0.7x=26.5(34)75-x=28(35)2x÷2=3(36)17.9+9x=26.9(37)40x-27x-2.6=26(38)x÷3=3.3(39)32x-36=28(40)(2.1x-2.8)÷2=2.8(41)15x-4x-12=120(42)40x+12=212(43)29x+24=111(44)16x-6x-4.2=20.8(45)104+6x=116(46)15.5+90x=33.5(47)11x-39×3=48(48)15x+4x=171(49)x+18=48(50)3x+4.2=20.1(51)3x+11x-44=166(52)x-2.1=3(53)0.5x=1(54)x÷20=0.3(55)9.9-x=9.3(56)6x+17×11=331(57)35+x=109(58)58x-45x-2.1=12.2(59)173+61x=356(60)50x+3.9=18.9(61)3x=132(62)(3.9x+6.5)÷8=5.2(63)15x-8x=70(64)12x-2x-15=65(65)20x-3×3.8=2.6(66)11+12x=191(67)x÷4=23(68)7x+11×13=297(69)x-8.6=1(70)36÷x=18(71)0.2x+4=17(72)18x+55=109(73)14x=9.8(74)6x+2x-2.9=46.7(75)1.1x-5.6=3.2(76)7x÷5=21(77)4.7+1.1x=11.3(78)51x+11x+1.7=113.3(79)3.8x-0.6x-0.8=8.8(80)2x+6x=256(81)2.9x+3.1x+0.7=36.7(82)x÷3=41(83)19x+21=192(84)31x-18x-1.6=2.3(85)2x÷6=1.9(86)3x=4.8(87)x÷12=1(88)48+x=54(89)7(0.6x-6.4)=30.8(90)7(1.2x-2.9)=13.3(91)9÷x=1(92)(6x+12)÷2=78(93)2x+2.8=12.8(94)2(4x-41)=94(95)7.1x-2.4x+3.7=41.3(96)15x-13x=14(97)15(2x-36)=150(98)2x+15x+48=116(99)7x+4×44=246(100)5x-14×6=26(101)13x+2×56=138(102)3.2x+4.2x-0.4=44(103)x-5.7=1.7(104)17x-12×13=31(105)(16x+14)÷11=10(106)6x+5×33=285(107)2(0.4x+8.8)=32.8(108)(19x-7)÷2=101(109)x÷13=5(110)x-54=22(111)6(11x-22)=66(112)23(0.2x+0.2)=18.4(113)x-4=19(114)3(13x-23)=165(115)138+2x=270(116)10x+48=198(117)x-34=33(118)19+x=81(119)2.4x-1.2×3=8.4(120)7.7-x=3.3(121)3x=6(122)16.1-2x=10.1(123)5(0.5x-7.9)=8(124)x÷56=2(125)27+x=76(126)37+x=111(127)12.7+3x=32.5(128)63-x=45(129)85x-74x+1=6.5(130)5.7x+5.6x=146.9(131)x+4=42(132)5.3x-5.3=10.6(133)56x÷28=4(134)(2.4x-6.6)÷18=1.5(135)(3.6x+4.7)÷17=0.7(136)100x-27=173(137)9.5+x=16.6(138)17x=119(139)17x-6x-20=13(140)132÷x=11(141)2x=50(142)22x+57=167(143)x+66=133(144)9.1x-5.2x-0.9=22.5(145)(17x-30)÷3=7(146)64+3x=73(147)11x-3x+14=142(148)3x-32=154(149)20x-9x-2.4=8.6(150)x+51=73(151)4x-2x+18=42(152)2x-4.9=5.1(153)9.4x-1.8x=30.4(154)4.2x+7.4x+3.4=26.6(155)2x÷4=34(156)12x-3x=90(157)6x-4x-40=14(158)0.9x÷3=1.8(159)x+9.2=12.4(160)0.3x+1=4.3(161)58-7x=37(162)6x+15x=63(163)7.6+x=16.6(164)4x-2x+26=38(165)0.8x+0.2×14=18(166)x+52=137(167)75x-57x-0.2=21.4(168)102÷x=2(169)19.2-0.7x=10.8(170)13x-2.7=1.2(171)36x+2×2.5=19.4(172)17.5-1.5x=7(173)2x-2×5=164(174)2(2x+38)=200(175)5x-18×2=69(176)175-3x=58(177)10.5+2.5x=30.5(178)3(1.4x+4.9)=35.7(179)7x+8×4=46(180)60-x=18(181)7.3x-3.4x+2.2=21.7(182)6x+4×2.3=13.4(183)9.8÷x=1.4(184)19x-12x-19=30(185)6x-3x-22=23(186)8.8x+9.1x=71.6(187)2x+3x+42=257(188)x÷15=0.6(189)11x+12×0.3=5.8(190)14x-4x+4=54(191)164÷x=41(192)2x+1.8x-1.3=158.3(193)32÷x=4(194)3.6x+0.2x=30.4(195)3x=195(196)4x-3×0.2=13.8(197)21x+35×0.2=19.6(198)2x+35×4=146(199)10x-4x-10=44(200)5.6-11x=2.3(201)4x+1.3=13.3(202)9.7x+2.8=22.2(203)19.5-3.2x=6.7(204)4.6x-0.2x+1.4=41(205)86x-5x+3.5=35.9(206)7x+5.2=8(207)10x÷5=18(208)0.2x÷12=1.2(209)18.4-0.5x=14.4(210)4+x=20(211)4.9x+0.3×39=31.3(212)2(3.9x+1.2)=41.4(213)4x-2x+22=58(214)18.4-0.2x=18(215)4x-2x-29=71(216)0.3x+2.4=12.6(217)x-3=65(218)(6.1x-1.9)÷24=1.7(219)48÷x=3(220)25(x-5.3)=42.5(221)6.8+2x=26.8(222)2.2x+0.4x-3.2=28(223)4x-2×2.7=8.6(224)27x-2x-3.2=56.8(225)3x=2.1(226)5x-2x=81(227)35x-16×0.9=3.1(228)5.6x=16.8(229)8x+21×2=186(230)9x-3x+7=121(231)7x+5x=72(232)x-2=41(233)17x-6x+18=95(234)14+2x=72(235)(3x-13)÷7=5(236)0.7x÷3=1.4(237)94x-53x+0.4=41.4(238)86+x=103(239)x+8.1=10(240)9x=198(241)53x=159(242)85x-27x+0.8=29.8(243)0.3x-0.4×11=6.7(244)8x+6x-34=232(245)1.6x+0.9x-4=48.5(246)37x+2×0.7=12.5(247)(6.9x-4.5)÷6=2.7(248)2(1.5x+0.9)=16.8(249)22x+34x-0.5=77.9(250)5.1x-0.9x=21(251)6÷x=3(252)65x-53x+2.6=11(253)67x+55x+1.8=111.6(254)0.2x-5.3=3.1(255)x÷33=3(256)(x+47)÷7=7(257)4x-5×2=1.6(258)x-0.4=4.6(259)0.9x-0.3x=36.6(260)x+24=102(261)18x-12x+14=80(262)9(x-31)=108(263)1.6+x=10.3(264)2.9x+0.3x+0.9=16.9(265)68÷x=17(266)0.3x-1.7=10.9(267)2.8x-2.6x-1=3.6(268)x÷4=6(269)1.5x-0.5×20=9.5(270)10.7-0.7x=7.9(271)13(2x-33)=143(272)5x+7x-5=319(273)(14x+28)÷2=49(274)x-6.9=3(275)0.4x+0.4×22=26.8(276)6.9x-2.6x=17.2(277)6(1.6x-1.6)=28.8(278)1.5+x=4.1(279)3.4x-2.4x+1.3=12.3(280)13.8-25x=8.8(281)2.8x-1.2×5=10.8(282)15x-7x=64(283)2x+12x+30=184(284)x+2.7=6.8(285)13.1-1.1x=10.9(286)4.6x+5.5x=131.3(287)4.1x-2.7x+1.7=12.9(288)9(x+3)=117(289)3x÷21=9(290)12x+9x=42(291)1.1x+1.6x-1.3=112.1(292)2x÷18=0.5(293)9.7x+4.1x=55.2(294)2.4x+8.8x+2.2=114.2(295)8x=8(296)2.7÷x=0.3(297)0.5x÷3=4(298)8.4x+2.5x=87.2(299)6x-2.2=14.6(300)18+72x=32.4(301)7x-14×4=49(302)22x+6x+2.5=24.9(303)32x÷24=0.8(304)5.7x-2.5x-2.7=48.5(305)x+56=118(306)2.6x+8.7x+0.9=68.7(307)x÷9=0.7(308)8.4x÷21=0.8(309)171÷x=19(310)0.3x÷6=0.8(311)(11x-29)÷41=6(312)9.8÷x=0.2(313)(5.6x-5.2)÷3=7.6(314)1.7x-3=12.3(315)2x=12(316)2x÷4=4.6(317)17.9-0.2x=8.3(318)2.5x+9.6x=24.2(319)0.6x-1.6=6.8(320)82x-57=107(321)11.3-4x=7.7(322)3x+3×63=270(323)x÷7=18(324)5(0.7x+5.1)=50(325)3.6x+0.2x-2.9=50.3(326)7.9x+1.6x-0.7=65.8(327)5(4.2x-7.5)=25.5(328)27x=5.4(329)7x-20=78(330)9x-2.7x+0.6=51(331)x-42=52(332)(0.4x+7.3)÷19=0.7(333)34x-8x+4.5=79.9(334)44x-36x-1.7=5.5(335)92x+69x-1.7=94.9(336)9.4x-1.3x-4.4=44.2(337)2.7x-1.3=4.1(338)4.7-x=2.3(339)2x+11x-32=189(340)24x÷84=2(341)3(4x+38)=162(342)33x+38x-4.5=59.4(343)x-1.1=5.6(344)47x+2x-1.9=37.3(345)1.2x=19.2(346)184-43x=12(347)x-46=22(348)3.8x-1.2x+3.7=58.3(349)3.8x-3.2x=3.6(350)0.7x-3.4×2=7.9(351)7.6-x=5.8(352)3x÷4=30(353)0.4x+0.3x+0.7=7(354)1.2x+5.2=17.2(355)2(0.5x-2.9)=39.2(356)11x+55=132(357)x+64=93(358)24x-3.8=5.8(359)5.9x-4x=15.2(360)10x+17x+38=119(361)9x-4.1=3.1(362)8x-4x-20=64(363)2(3x+36)=120(364)x+6.9=16.3(365)(5.5x+7.5)÷6=9.5(366)19x+13x=64(367)2(0.9x+1.4)=26.2(368)(10x-20)÷2=20(369)17x+5.2=20.5(370)52x÷13=1.2(371)52x+55x-2.7=179.2(372)0.8x÷6=2(373)5(10x-46)=70(374)3x+2.6=4.4(375)8.3x+4.5x+0.6=103(376)19x+32=222(377)5x=5(378)88+x=147(379)3x+39×0.3=14.1(380)78x+30x+1.9=99.1(381)5.6x÷28=0.6(382)71x+21x+0.6=55.8(383)29x-5×1.5=7(384)x+9.7=12.7(385)2x+6x+1=37(386)77-x=68(387)4.4x-1.6x+0.5=62.1(388)3(18x-3)=99(389)10.7-0.4x=2.3(390)64+4x=208(391)(1.3x+0.2)÷5=2.9(392)3.5x+1.8=15.8(393)2.7x=10.8(394)2x=17.8(395)x+7.3=14(396)62-x=35(397)4x+10x-24=214(398)1.9x-0.7×4=6.7(399)14.9-15x=4.4(400)7(0.2x-6.6)=22.4(401)9x-3.3=10.2(402)x-0.2=8(403)(18x-4)÷4=8(404)6.1+28x=25.7(405)0.4x=10.8(406)35-x=22(407)30x-21=39(408)0.4x-3.5×3=8.7(409)(11x+39)÷2=91(410)7(0.6x+0.8)=35(411)0.4x+2.2=10.6(412)(x+6)÷5=2.4(413)8x+3x=176(414)0.5x-0.4×35=4(415)9.3-x=6(416)7.2x-5.4x-4.2=1.2(417)9x-4×21=60(418)48x÷6=2.4(419)20x-3x+3.4=34(420)66x-58x+3.7=10.9(421)(2x+4)÷4=10(422)16x+17x+9=75(423)x÷8=1.1(424)6.4+x=11.3(425)12.8+8x=29.6(426)6.3+x=12.2(427)12x+13×1.1=22.7(428)11x+3x-24=228(429)0.6x+4.7x+4.1=14.7(430)3x+3.9=18.6(431)11x-3x=104(432)(6.6x+6.9)÷19=2.1(433)x÷61=3(434)110-2x=46(435)0.7x-0.5x-2.9=16.9(436)3.6x+3.8×4=26(437)4.6x+5.2x-3.9=64.7(438)(1.1x+0.9)÷4=4.9(439)7x=119(440)17.8-75x=2.8(441)5.1-x=4(442)80-x=34(443)13x+34=60(444)22x+17x+4.5=109.8(445)1.4x+2.1x+4=165(446)15.2-33x=2(447)17x+11x-2.8=22.4(448)73x+24x+1.7=30.8(449)6.3+x=10.4(450)x÷45=0.2(451)(6.3x-4.3)÷4=6.8(452)(14x+36)÷16=18(453)(13x+33)÷3=76(454)x-18=30(455)0.2x=1.4(456)159+29x=333(457)0.2x-5.6=9(458)5(x+13)=175(459)0.3x+0.2×31=19.4(460)9.4x-7.9x=3(461)3.2+6.2x=21.8(462)14.3+0.2x=29.3(463)18+0.2x=37.8(464)4x+9x-46=162(465)28x-1=15.8(466)18x-3x=60(467)34x+16x+3.7=33.7(468)x+9.5=16.4(469)39x÷13=0.9(470)27x-15×0.5=6(471)x+71=162(472)4(1.8x-3.9)=6(473)33x+5.8=15.7(474)66+x=131(475)11.2+7x=14.7(476)19x+18x-10=212(477)13x-1.8=9.9(478)4(7x+9)=92(479)3x÷78=2(480)32x÷64=0.2(481)6.8÷x=3.4(482)(x-8.6)÷21=0.4(483)6÷x=1.2(484)13.1+0.8x=25.9(485)16.5+7x=34.7(486)4.4x+0.4×6=11.2(487)3(3x+4)=102(488)(7.6x-2.2)÷2=25.5(489)8x-6.2x=19.8(490)7.6-x=5.7(491)4x+3x=203(492)30x÷3=20(493)13.2-5x=8.7(494)0.2x-1.3=4.5(495)24x-25=47(496)9x+3x+30=294(497)115+2x=265(498)9.2+x=15.4(499)90-18x=36(500)17x-11x=18(501)0.2x=16.8(502)58x+70x-1.8=87.8(503)172-2x=162(504)4(2x+5)=148(505)14x-11x=30(506)75-x=10(507)x÷90=2(508)2.3x-0.3x-1.5=12.5(509)2.5x+3.5×2=14.5(510)68x+1.4=15(511)2x-3.3=6.3(512)16x-7x+2.3=54.5(513)41x-12x-3.7=63(514)8.8-x=4.2(515)6.2-7x=2.7(516)7.3+x=14(517)(5.4x-6.6)÷6=14.2(518)1.3x+7.9x-1.7=71.9(519)15x+5.6=10.1(520)18.6÷x=0.6(521)30x+27×0.4=28.8(522)2x÷3=0.8(523)4.2x=16.8(524)(6.4x+7.9)÷19=2.1(525)4x-3×2.5=10.5(526)11x=165(527)6.5x-5.1x-3.2=17.8(528)5x-17×6=53(529)4(15x-32)=52(530)4x+3x+46=151(531)(7x+35)÷3=28(532)3(8x+27)=129(533)6.5-x=2.1(534)x÷2=3.5(535)10x+7x+38=344(536)4x+38×0.2=14.4(537)3.9x+0.2×5=12.7(538)x+4.4=11.8(539)17.6÷x=2.2(540)8.9x-7.1x+1.9=19.9参考答案(1)x=78(2)x=7.1(3)x=3.3(4)x=10(5)x=10(6)x=19(7)x=6(8)x=1.8(9)x=2(10)x=4(11)x=8(12)x=3(13)x=5(14)x=2(15)x=2(16)x=3(17)x=11(18)x=9.1(19)x=6(20)x=10(21)x=5(22)x=0.4(23)x=7(24)x=16(25)x=13(26)x=8.7(27)x=4(28)x=3(29)x=93(30)x=5.2(31)x=10(32)x=25(33)x=12(34)x=47(35)x=3(36)x=1(37)x=2.2(38)x=9.9(39)x=2(40)x=4(41)x=12(42)x=5(43)x=3(44)x=2.5(45)x=2(46)x=0.2(47)x=15(48)x=9(49)x=30(50)x=5.3(51)x=15(52)x=5.1(53)x=2(54)x=6(55)x=0.6(56)x=24(57)x=74(58)x=1.1(59)x=3(60)x=0.3(61)x=44(62)x=9(63)x=10(64)x=8(65)x=0.7(66)x=15(67)x=92(68)x=22(69)x=9.6(70)x=2(71)x=65(72)x=3(73)x=0.7(74)x=6.2(75)x=8(76)x=15(77)x=6(78)x=1.8(79)x=3(80)x=32(81)x=6(82)x=123(83)x=9(84)x=0.3(85)x=5.7(86)x=1.6(87)x=12(88)x=6(89)x=18(90)x=4(91)x=9(92)x=24(93)x=5(94)x=22(95)x=8(96)x=7(97)x=23(98)x=4(99)x=10(100)x=22(101)x=2(102)x=6(103)x=7.4(104)x=11(105)x=6(106)x=20(107)x=19(108)x=11(109)x=65(110)x=76(111)x=3(112)x=3(113)x=23(114)x=6(115)x=66(116)x=15(117)x=67(118)x=62(119)x=5(120)x=4.4(121)x=2(122)x=3(123)x=19(124)x=112(125)x=49(126)x=74(127)x=6.6(128)x=18(129)x=0.5(130)x=13(131)x=38(132)x=3(133)x=2(134)x=14(135)x=2(136)x=2(137)x=7.1(138)x=7(139)x=3(140)x=12(141)x=25(142)x=5(143)x=67(144)x=6(145)x=3(146)x=3(147)x=16(148)x=62(149)x=1(150)x=22(151)x=12(152)x=5(153)x=4(154)x=2(155)x=68(156)x=10(157)x=27(158)x=6(159)x=3.2(160)x=11(161)x=3(162)x=3(163)x=9(164)x=6(165)x=19(166)x=85(167)x=1.2(168)x=51(169)x=12(170)x=0.3(171)x=0.4(172)x=7(173)x=87(174)x=31(175)x=21(176)x=39(177)x=8(178)x=5(179)x=2(180)x=42(181)x=5(182)x=0.7(183)x=7(184)x=7(185)x=15(186)x=4(187)x=43(188)x=9(189)x=0.2(190)x=5(191)x=4(192)x=42(193)x=8(194)x=8(195)x=65(196)x=3.6(197)x=0.6(198)x=3(199)x=9(200)x=0.3(201)x=3(202)x=2(203)x=4(204)x=9(205)x=0.4(206)x=0.4(207)x=9(208)x=72(209)x=8(210)x=16(211)x=4(212)x=5(213)x=18(214)x=2(215)x=50(216)x=34(217)x=68(218)x=7(219)x=16(220)x=7(221)x=10(222)x=12(223)x=3.5(224)x=2.4(225)x=0.7(226)x=27(227)x=0.5(228)x=3(229)x=18(230)x=19(231)x=6(232)x=43(233)x=7(234)x=29(235)x=16(236)x=6(237)x=1(238)x=17(239)x=1.9(240)x=22(241)x=3(242)x=0.5(243)x=37(244)x=19(245)x=21(246)x=0.3(247)x=3(248)x=5(249)x=1.4(250)x=5(251)x=2(252)x=0.7(253)x=0.9(254)x=42(255)x=99(256)x=2(257)x=2.9(258)x=5(259)x=61(260)x=78(261)x=11(262)x=43(263)x=8.7(264)x=5(265)x=4(266)x=42(267)x=23(268)x=24(269)x=13(270)x=4(271)x=22(272)x=27(273)x=5(274)x=9.9(275)x=45(276)x=4(277)x=4(278)x=2.6(279)x=11(280)x=0.2(281)x=6(282)x=8(283)x=11(284)x=4.1(285)x=2(286)x=13(287)x=8(288)x=10(289)x=63(290)x=2(291)x=42(292)x=4.5(293)x=4(294)x=10(295)x=1(296)x=9(297)x=24(298)x=8(299)x=2.8(300)x=0.2(301)x=15(302)x=0.8(303)x=0.6(304)x=16(305)x=62(306)x=6(307)x=6.3(308)x=2(309)x=9(310)x=16(311)x=25(312)x=49(313)x=5(314)x=9(315)x=6(316)x=9.2(317)x=48(318)x=2(319)x=14(320)x=2(321)x=0.9(322)x=27(323)x=126(324)x=7(325)x=14(326)x=7(327)x=3(328)x=0.2(329)x=14(330)x=8(331)x=94(332)x=15(333)x=2.9(334)x=0.9(335)x=0.6(336)x=6(337)x=2(338)x=2.4(339)x=17(340)x=7(341)x=4(342)x=0.9(343)x=6.7(344)x=0.8(345)x=16(346)x=4(347)x=68(348)x=21(349)x=6(350)x=21(351)x=1.8(352)x=40(353)x=9(354)x=10(355)x=45(356)x=7(357)x=29(358)x=0.4(359)x=8(360)x=3(361)x=0.8(362)x=21(363)x=8(364)x=9.4(365)x=9(366)x=2(367)x=13(368)x=6(369)x=0.9(370)x=0.3(371)x=1.7(372)x=15(373)x=6(374)x=0.6(375)x=8(376)x=10(377)x=1(378)x=59(379)x=0.8(380)x=0.9(381)x=3(382)x=0.6(383)x=0.5(384)x=3(385)x=4.5(386)x=9(387)x=22(388)x=2(389)x=21(390)x=36(391)x=11(392)x=4(393)x=4(394)x=8.9(395)x=6.7(396)