五年级数学(方程)习题及答案

五年级数学(方程)习题及答案(1)x+68=131(2)x+12=63(3)x+48=110(4)x+48=95(5)x+14=20(6)x+93=124(7)x+48=86(8)x+91=156(9)x+91=128(10)x-5=54(11)x-45=42(12)x-78=12(13)x-19=63(14)x-28=22(15)x-42=12(16)x-65=28(17)x-45=46(18)x-39=56(19)x+3.8=11.6(20)x+9.2=10.3(21)x+7.2=7.4(22)x+6=9.7(23)x+9.7=11(24)x+4.5=13.2(25)x+5.2=8.1(26)x+2.2=7.4(27)x+8.4=12.8(28)x-5.1=2(29)x-1.5=1.9(30)x-0.6=5.6(31)x-2.2=2.5(32)x-7.9=1.6(33)x-2=1.5(34)x-0.7=5.9(35)x-2.1=6.6(36)x-0.8=2.2(37)85+x=116(38)8+x=65(39)4+x=47(40)11+x=52(41)52+x=134(42)18+x=78(43)47+x=70(44)54+x=99(45)46+x=62(46)54-x=21(47)64-x=21(48)71-x=68(49)40-x=16(50)67-x=61(51)64-x=49(52)95-x=53(53)58-x=19(54)74-x=14(55)3.1+x=6.7(56)6+x=11(57)2.8+x=5.4(58)3.1+x=5.1(59)9.2+x=16.4(60)4+x=8.2(61)6.8+x=7.8(62)2.1+x=10.4(63)0.2+x=4.8(64)8.7-x=7.5(65)4-x=3(66)9.7-x=2.6(67)7.4-x=1.8(68)9.4-x=8(69)4.5-x=2.9(70)5.2-x=4.5(71)9.8-x=4.4(72)7.5-x=4.4(73)5x=80(74)33x=99(75)5x=85(76)21x=105(77)14x=98(78)6x=12(79)12x=24(80)12x=144(81)17x=34(82)0.2x=18.8(83)2.4x=12(84)1.1x=13.2(85)6.2x=12.4(86)0.6x=6.6(87)0.2x=6(88)0.7x=2.1(89)0.2x=11.4(90)0.5x=7.5(91)12x=9.6(92)5x=17.5(93)2x=18.6(94)20x=20(95)32x=6.4(96)19x=9.5(97)11x=13.2(98)2x=6.2(99)15x=18(100)160÷x=20(101)154÷x=11(102)147÷x=49(103)160÷x=5(104)56÷x=28(105)196÷x=4(106)102÷x=3(107)75÷x=15(108)80÷x=2(109)6.5÷x=1.3(110)4÷x=1(111)15.6÷x=0.4(112)17.6÷x=2.2(113)14.1÷x=4.7(114)11.2÷x=2.8(115)6.6÷x=1.1(116)9.5÷x=0.5(117)0.6÷x=0.2(118)x÷5=33(119)x÷20=3(120)x÷12=4(121)x÷2=24(122)x÷38=4(123)x÷5=13(124)x÷2=35(125)x÷7=27(126)x÷8=19(127)x÷20=0.7(128)x÷3=2.2(129)x÷5=1.8(130)x÷7=0.7(131)x÷6=3.1(132)x÷21=0.7(133)x÷39=0.3(134)x÷18=0.7(135)x÷19=0.3(136)14x+38=150(137)12x+33=225(138)6x+56=206(139)18x+38=110(140)2x+52=86(141)2x+13=157(142)12x+20=140(143)44x+46=134(144)5x+52=222(145)48x-53=91(146)6x-24=150(147)23x-41=143(148)6x-52=92(149)100x-18=182(150)58x-25=91(151)2x-24=132(152)8x-15=153(153)22x-14=118(154)14x+2.9=18.3(155)35x+2=16(156)8x+2.8=5.2(157)3x+2.5=20.5(158)8x+1.4=11(159)4x+5.8=10.6(160)90x+2.2=20.2(161)40x+5.5=17.5(162)9x+4.4=21.5(163)0.4x+4=11.6(164)0.6x+5.7=8.1(165)2.1x+4.1=8.3(166)0.5x+4.1=10.1(167)0.5x+3.1=12.6(168)0.7x+2.8=20.3(169)0.6x+3.7=16.3(170)1.4x+4.6=21.4(171)2x+3.2=13.2(172)4x-5.4=3(173)26x-3.1=15.1(174)12x-2.6=1(175)2x-2.5=7.1(176)27x-4=9.5(177)15x-3.9=11.1(178)44x-2.7=6.1(179)8x-3=13(180)7x-4.5=5.3(181)7.2x-5=9.4(182)0.2x-5.4=3.8(183)2.6x-4.8=13.4(184)6.2x-2.1=16.5(185)0.6x-5.8=7.4(186)5.4x-2.7=13.5(187)6.5x-5.6=7.4(188)0.7x-3.5=5.6(189)0.2x-1.6=10.2(190)125+2x=227(191)192+8x=248(192)39+38x=115(193)25+80x=185(194)168+3x=354(195)25+21x=151(196)57+66x=189(197)169+92x=353(198)71+8x=191(199)160-6x=124(200)111-2x=47(201)116-2x=70(202)117-3x=30(203)54-2x=26(204)195-6x=159(205)186-2x=76(206)94-3x=73(207)143-7x=122(208)7.5+2.9x=13.3(209)16.8+7.7x=32.2(210)18.4+2.8x=35.2(211)10.3+0.3x=22.9(212)8.5+0.6x=24.1(213)1.1+1.3x=14.1(214)3.4+0.3x=23.2(215)14+1.8x=33.8(216)13.4+1.2x=21.8(217)5.2+2x=17(218)12.2+7x=28.3(219)8.2+89x=26(220)9.2+9x=12.8(221)11.2+6x=23.8(222)18.5+50x=28.5(223)11.9+24x=23.9(224)11.1+39x=30.6(225)3.2+3x=21.8(226)15.9-0.2x=11.5(227)16.9-0.3x=13(228)17.1-2.1x=10.8(229)18.1-2.6x=10.3(230)17.9-2.7x=4.4(231)13.8-0.7x=8.2(232)12.9-1.7x=9.5(233)18.7-0.2x=14.1(234)14.2-0.5x=8.7(235)10.5-7x=4.2(236)17.5-2x=2.1(237)4.4-6x=2(238)13.2-2x=1.8(239)14.9-9x=12.2(240)17.2-16x=2.8(241)15.5-49x=5.7(242)16.9-9x=3.4(243)9.9-29x=1.2(244)24x÷15=8(245)20x÷40=3(246)5x÷70=2(247)40x÷20=4(248)3x÷7=15(249)24x÷96=2(250)8x÷56=2(251)14x÷84=2(252)2x÷8=19(253)0.2x÷6=0.3(254)1.8x÷21=0.6(255)0.5x÷30=0.3(256)0.4x÷3=2(257)0.4x÷20=0.5(258)0.3x÷27=0.7(259)1.6x÷8=2.2(260)2.2x÷14=1.1(261)3.2x÷64=0.2(262)8x÷40=0.4(263)15x÷20=0.9(264)18x÷36=0.2(265)2x÷35=0.4(266)3x÷18=0.4(267)9x÷6=2.4(268)60x÷5=2.4(269)13x÷4=3.9(270)2x÷24=0.5(271)7x+12x=57(272)15x+4x=57(273)12x+7x=171(274)5x+2x=231(275)8x+5x=325(276)13x+8x=84(277)2x+14x=128(278)4x+7x=143(279)2x+17x=133(280)8x-2x=126(281)7x-5x=44(282)10x-2x=112(283)18x-16x=16(284)11x-2x=27(285)10x-4x=48(286)6x-2x=48(287)9x-2x=119(288)18x-13x=55(289)2.9x+9.7x=100.8(290)2.1x+8.8x=76.3(291)0.6x+3.7x=111.8(292)3.7x+3.1x=122.4(293)0.9x+4.7x=28(294)2.4x+1.9x=43(295)8.1x+2.5x=74.2(296)2.6x+1.7x=146.2(297)2.9x+0.5x=27.2(298)1.7x-1.4x=7.5(299)4.9x-0.9x=68(300)6.6x-3x=46.8(301)8.8x-8.4x=1.6(302)9.5x-6x=21(303)0.8x-0.4x=5.2(304)9.3x-8.3x=2(305)5.5x-0.7x=52.8(306)5.9x-5.2x=6.3(307)6x+3x+32=140(308)15x+12x+34=250(309)3x+8x+2=167(310)14x+12x+7=267(311)7x+8x+15=240(312)18x+9x+47=236(313)4x+7x+17=325(314)4x+6x+4=124(315)5x+11x+27=139(316)6x+3x-9=171(317)9x+3x-11=85(318)8x+16x-41=223(319)7x+11x-21=51(320)17x+2x-20=132(321)17x+4x-45=18(322)14x+13x-19=170(323)2x+11x-15=154(324)5x+3x-42=230(325)9x-6x+17=41(326)18x-12x+20=56(327)12x-2x+20=170(328)13x-6x+12=117(329)6x-2x+9=45(330)8x-6x+9=55(331)19x-17x+29=41(332)18x-4x+22=176(333)4x-2x+25=117(334)12x-7x-17=58(335)13x-8x-5=65(336)9x-3x-27=51(337)19x-10x-34=29(338)10x-4x-6=96(339)6x-4x-42=12(340)12x-5x-6=71(341)16x-9x-21=21(342)18x-15x-19=14(343)7.2x+3x+3.9=24.3(344)7.4x+1x+1.8=35.4(345)2.9x+5.9x+4.1=92.1(346)1.8x+1.9x+4=48.4(347)9.8x+0.9x+1=54.5(348)9.2x+4.6x+2.8=30.4(349)8.5x+7.2x+0.4=63.2(350)3.3x+6.4x+2=40.8(351)3.1x+3.9x+1.1=57.1(352)9x+3x+0.4=53.2(353)39x+42x+3.2=43.7(354)63x+15x+2.6=72.8(355)32x+67x+1.8=100.8(356)90x+73x+3.1=166.1(357)7x+79x+2.8=71.6(358)37x+40x+3.3=118.8(359)53x+21x+4.8=86.2(360)2x+9x+0.5=24.7(361)0.5x+2.9x-4.7=25.9(362)3.8x+0.3x-4.6=93.8(363)4.4x+2.4x-1.8=79.8(364)7.9x+2.5x-3.9=68.9(365)1.3x+0.6x-4.8=118.7(366)0.7x+0.2x-3.4=82.1(367)0.8x+8.6x-3.6=90.4(368)1.6x+5x-0.8=118(369)5.9x+9x-3.8=130.3(370)15x+36x-0.9=29.7(371)7x+30x-4.5=95.4(372)58x+59x-1.8=138.6(373)63x+34x-3.5=74.1(374)23x+30x-4.4=138.7(375)32x+31x-3.4=72.2(376)16x+71x-4.9=47.3(377)93x+60x-2=89.8(378)65x+34x-3.5=145(379)3.3x-0.2x+2.4=64.4(380)9.5x-7.3x+3.9=8.3(381)8.7x-1.8x+3.5=17.3(382)6.6x-4.8x+2.3=9.5(383)5x-2.2x+1.5=32.3(384)4.5x-0.9x+2.2=41.8(385)7.7x-1.9x+0.2=64(386)6.1x-5.8x+4=5.5(387)6.3x-0.8x+3.9=80.9(388)34x-18x+2.7=36.3(389)72x-17x+3.5=64(390)59x-4x+0.9=28.4(391)90x-72x+0.2=14.6(392)89x-83x+3.6=9(393)80x-2x+4.1=43.1(394)58x-47x+2.5=14.6(395)62x-24x+2=32.4(396)63x-47x+4=28(397)6.5x-5.3x-1.4=10.6(398)6.3x-4x-2=2.6(399)3.7x-3x-2.5=8.7(400)4.2x-2.6x-2.5=24.7(401)8.4x-4.7x-4.6=21.3(402)2.3x-1.1x-0.9=7.5(403)4.7x-0.7x-4.4=71.6(404)7.9x-3.8x-4.3=28.5(405)4.1x-2x-0.9=24.3(406)98x-12x-0.3=25.5(407)35x-2x-1=48.5(408)63x-9x-0.2=16(409)64x-58x-1.8=3(410)28x-26x-4.9=1.3(411)62x-3x-1.3=69.5(412)92x-72x-0.9=7.1(413)70x-51x-0.6=7(414)90x-4x-3.4=39.6(415)3x+11×2=55(416)4x+2×98=384(417)3x+3×56=357(418)5x+65×2=330(419)13x+29×2=123(420)6x+17×7=197(421)7x+3×28=140(422)3x+4×19=109(423)12x+7×11=173(424)7x-2×53=76(425)4x-2×67=54(426)28x-60×2=20(427)15x-12×3=144(428)2x-2×6=36(429)20x-2×81=18(430)16x-23×2=146(431)16x-2×56=80(432)2x-18×3=42(433)0.3x+3.3×6=26.7(434)0.6x+2.1×4=23.4(435)0.3x+2.4×7=19.2(436)0.8x+1×12=15.2(437)0.4x+0.3×30=21.4(438)1.5x+4×5=33.5(439)0.4x+0.4×22=13.2(440)3x+2.2×3=24.6(441)1.8x+1.6×10=35.8(442)2x+2×4.4=11.8(443)3x+9×1.8=22.8(444)25x+2×2.3=12.1(445)7x+5×2.5=20.2(446)27x+3×2.1=19.8(447)5x+3×3.7=16.6(448)9x+6×3.2=21(449)17x+22×0.9=30(450)4x+8×2=24.8(451)4.3x-0.4×36=2.8(452)0.4x-1.8×2=12.4(453)1.8x-0.9×12=9(454)0.4x-0.3×34=2.2(455)2.2x-0.5×3=9.5(456)0.4x-1.3×4=1.2(457)1.4x-1.2×4=2.2(458)0.5x-2×2=11.5(459)2.7x-1.7×4=6.7(460)7x-3×0.6=15(461)4x-9×0.3=11.3(462)12x-3×1.1=12.3(463)26x-2×1.8=6.8(464)5x-48×0.2=5.9(465)12x-6×0.3=5.4(466)10x-2×0.4=10.2(467)33x-11×0.6=9.9(468)34x-2×0.3=13(469)2(x+8)=84(470)2(13x+28)=160(471)14(x+7)=168(472)2(x+6)=80(473)2(8x+27)=134(474)2(x+26)=100(475)2(3x+19)=68(476)2(5x+47)=154(477)2(2x+34)=116(478)6(3x-27)=108(479)12(27x-40)=168(480)6(2x-23)=66(481)3(5x-12)=69(482)2(5x-46)=78(483)4(2x-17)=124(484)6(11x-5)=102(485)8(3x-32)=128(486)10(3x-47)=130(487)4(0.3x+4.5)=43.2(488)2(1.5x+2.4)=49.8(489)4(0.4x+4.8)=30.4(490)6(0.2x+7.6)=48(491)4(0.2x+1.3)=43.6(492)27(0.2x+0.6)=37.8(493)2(0.6x+5.7)=23.4(494)2(1.3x+6.5)=44.2(495)3(0.2x+2.3)=30.3(496)8(0.2x-1.8)=27.2(497)2(0.7x-3.7)=23.4(498)2(3.6x-8.3)=19.4(499)7(1.5x-7.9)=39.2(500)3(0.7x-5.6)=33.6(501)2(9x-2.8)=30.4(502)2(2.4x-5.5)=32.2(503)12(x-7.9)=13.2(504)2(0.4x-4.8)=26.4(505)(5x+43)÷3=41(506)(13x+42)÷9=22(507)(18x+12)÷12=25(508)(3x+30)÷6=13(509)(2x+2)÷27=2(510)(13x+49)÷35=4(511)(9x+34)÷2=107(512)(13x+2)÷10=21(513)(x+36)÷44=1(514)(18x-4)÷4=8(515)(17x-30)÷4=18(516)(10x-20)÷44=5(517)(15x-30)÷6=35(518)(9x-9)÷3=33(519)(6x-6)÷8=6(520)(13x-26)÷5=26(521)(6x-26)÷14=8(522)(14x-35)÷35=7(523)(2.3x+1.9)÷4=4.5(524)(2.7x+4.8)÷3=16(525)(3.9x+3.3)÷29=2.4(526)(2x+3.2)÷7=5.6(527)(1.1x+4.7)÷8=1(528)(0.9x+1.7)÷2=5.8(529)(1.4x+2.8)÷5=4.2(530)(4.4x+1.3)÷27=0.7(531)(3.4x+2.8)÷5=6(532)(3.7x-6)÷2=26.6(533)(7x-2.4)÷6=10.1(534)(3.9x-1.8)÷3=11.1(535)(2x-3.2)÷38=0.6(536)(5.3x-3.9)÷7=10.8(537)(6.1x-4)÷2=34.6(538)(3.8x-7.4)÷31=1.6(539)(4.4x-6.8)÷2=29.6(540)(1.6x-7.6)÷4=4.1参考答案(1)x=63(2)x=51(3)x=62(4)x=47(5)x=6(6)x=31(7)x=38(8)x=65(9)x=37(10)x=59(11)x=87(12)x=90(13)x=82(14)x=50(15)x=54(16)x=93(17)x=91(18)x=95(19)x=7.8(20)x=1.1(21)x=0.2(22)x=3.7(23)x=1.3(24)x=8.7(25)x=2.9(26)x=5.2(27)x=4.4(28)x=7.1(29)x=3.4(30)x=6.2(31)x=4.7(32)x=9.5(33)x=3.5(34)x=6.6(35)x=8.7(36)x=3(37)x=31(38)x=57(39)x=43(40)x=41(41)x=82(42)x=60(43)x=23(44)x=45(45)x=16(46)x=33(47)x=43(48)x=3(49)x=24(50)x=6(51)x=15(52)x=42(53)x=39(54)x=60(55)x=3.6(56)x=5(57)x=2.6(58)x=2(59)x=7.2(60)x=4.2(61)x=1(62)x=8.3(63)x=4.6(64)x=1.2(65)x=1(66)x=7.1(67)x=5.6(68)x=1.4(69)x=1.6(70)x=0.7(71)x=5.4(72)x=3.1(73)x=16(74)x=3(75)x=17(76)x=5(77)x=7(78)x=2(79)x=2(80)x=12(81)x=2(82)x=94(83)x=5(84)x=12(85)x=2(86)x=11(87)x=30(88)x=3(89)x=57(90)x=15(91)x=0.8(92)x=3.5(93)x=9.3(94)x=1(95)x=0.2(96)x=0.5(97)x=1.2(98)x=3.1(99)x=1.2(100)x=8(101)x=14(102)x=3(103)x=32(104)x=2(105)x=49(106)x=34(107)x=5(108)x=40(109)x=5(110)x=4(111)x=39(112)x=8(113)x=3(114)x=4(115)x=6(116)x=19(117)x=3(118)x=165(119)x=60(120)x=48(121)x=48(122)x=152(123)x=65(124)x=70(125)x=189(126)x=152(127)x=14(128)x=6.6(129)x=9(130)x=4.9(131)x=18.6(132)x=14.7(133)x=11.7(134)x=12.6(135)x=5.7(136)x=8(137)x=16(138)x=25(139)x=4(140)x=17(141)x=72(142)x=10(143)x=2(144)x=34(145)x=3(146)x=29(147)x=8(148)x=24(149)x=2(150)x=2(151)x=78(152)x=21(153)x=6(154)x=1.1(155)x=0.4(156)x=0.3(157)x=6(158)x=1.2(159)x=1.2(160)x=0.2(161)x=0.3(162)x=1.9(163)x=19(164)x=4(165)x=2(166)x=12(167)x=19(168)x=25(169)x=21(170)x=12(171)x=5(172)x=2.1(173)x=0.7(174)x=0.3(175)x=4.8(176)x=0.5(177)x=1(178)x=0.2(179)x=2(180)x=1.4(181)x=2(182)x=46(183)x=7(184)x=3(185)x=22(186)x=3(187)x=2(188)x=13(189)x=59(190)x=51(191)x=7(192)x=2(193)x=2(194)x=62(195)x=6(196)x=2(197)x=2(198)x=15(199)x=6(200)x=32(201)x=23(202)x=29(203)x=14(204)x=6(205)x=55(206)x=7(207)x=3(208)x=2(209)x=2(210)x=6(211)x=42(212)x=26(213)x=10(214)x=66(215)x=11(216)x=7(217)x=5.9(218)x=2.3(219)x=0.2(220)x=0.4(221)x=2.1(222)x=0.2(223)x=0.5(224)x=0.5(225)x=6.2(226)x=22(227)x=13(228)x=3(229)x=3(230)x=5(231)x=8(232)x=2(233)x=23(234)x=11(235)x=0.9(236)x=7.7(237)x=0.4(238)x=5.7(239)x=0.3(240)x=0.9(241)x=0.2(242)x=1.5(243)x=0.3(244)x=5(245)x=6(246)x=28(247)x=2(248)x=35(249)x=8(250)x=14(251)x=12(252)x=76(253)x=9(254)x=7(255)x=18(256)x=15(257)x=25(258)x=63(259)x=11(260)x=7(261)x=4(262)x=2(263)x=1.2(264)x=0.4(265)x=7(266)x=2.4(267)x=1.6(268)x=0.2(269)x=1.2(270)x=6(271)x=3(272)x=3(273)x=9(274)x=33(275)x=25(276)x=4(277)x=8(278)x=13(279)x=7(280)x=21(281)x=22(282)x=14(283)x=8(284)x=3(285)x=8(286)x=12(287)x=17(288)x=11(289)x=8(290)x=7(291)x=26(292)x=18(293)x=5(294)x=10(295)x=7(296)x=34(297)x=8(298)x=25(299)x=17(300)x=13(301)x=4(302)x=6(303)x=13(304)x=2(305)x=11(306)x=9(307)x=12(308)x=8(309)x=15(310)x=10(311)x=15(312)x=7(313)x=28(314)x=12(315)x=7(316)x=20(317)x=8(318)x=11(319)x=4(320)x=8(321)x=3(322)x=7(323)x=13(324)x=34(325)x=8(326)x=6(327)x=15(328)x=15(329)x=9(330)x=23(331)x=6(332)x=11(333)x=46(334)x=15(335)x=14(336)x=13(337)x=7(338)x=17(339)x=27(340)x=11(341)x=6(342)x=11(343)x=2(344)x=4(345)x=10(346)x=12(347)x=5(348)x=2(349)x=4(350)x=4(351)x=8(352)x=4.4(353)x=0.5(354)x=0.9(355)x=1(356)x=1(357)x=0.8(358)x=1.5(359)x=1.1(360)x=2.2(361)x=9(362)x=24(363)x=12(364)x=7(365)x=65(366)x=95(367)x=10(368)x=18(369)x=9(370)x=0.6(371)x=2.7(372)x=1.2(373)x=0.8(374)x=2.7(375)x=1.2(376)x=0.6(377)x=0.6(378)x=1.5(379)x=20(380)x=2(381)x=2(382)x=4(383)x=11(384)x=11(385)x=11(386)x=5(387)x=14(388)x=2.1(389)x=1.1(390)x=0.5(391)x=0.8(392)x=0.9(393)x=0.5(