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+38=111(2)x+40=62(3)x+4=32(4)x+92=167(5)x+44=51(6)x+70=107(7)x+75=88(8)x+23=114(9)x+38=121(10)x-9=51(11)x-61=11(12)x-51=39(13)x-31=59(14)x-27=20(15)x-2=67(16)x-17=50(17)x-59=32(18)x-32=30(19)x+7.4=10.9(20)x+3.6=13(21)x+6.6=9.4(22)x+4.8=11.6(23)x+4.3=11.6(24)x+8.4=18.1(25)x+1.4=2.7(26)x+3.5=8.6(27)x+7.1=12(28)x-5.6=1.9(29)x-6.5=2.7(30)x-0.7=3.5(31)x-5.6=1.2(32)x-2.8=4.4(33)x-6.4=1.7(34)x-0.7=7.6(35)x-5.1=3.7(36)x-0.8=8.5(37)12+x=95(38)85+x=122(39)50+x=101(40)8+x=40(41)40+x=86(42)39+x=81(43)49+x=124(44)48+x=101(45)74+x=111(46)84-x=17(47)51-x=29(48)58-x=18(49)97-x=71(50)30-x=17(51)73-x=22(52)76-x=59(53)34-x=15(54)78-x=27(55)4.7+x=11.6(56)9+x=12.1(57)2.1+x=11(58)4.6+x=13.1(59)4.2+x=9.3(60)7.6+x=8.5(61)2.3+x=4.5(62)3.9+x=4.7(63)8.2+x=9.9(64)5.7-x=4.3(65)8.5-x=1(66)8.3-x=2.9(67)5.6-x=2.1(68)7.2-x=3.6(69)3.5-x=1.3(70)3.6-x=1(71)5.7-x=3.2(72)7.4-x=2.1(73)4x=48(74)6x=168(75)52x=156(76)11x=110(77)48x=144(78)3x=30(79)7x=168(80)11x=88(81)3x=48(82)6.5x=19.5(83)0.2x=7.8(84)0.6x=17.4(85)1x=8(86)2x=16(87)0.2x=5.4(88)6.6x=13.2(89)1.1x=16.5(90)0.2x=19.2(91)2x=12.2(92)2x=8(93)10x=16(94)38x=7.6(95)16x=17.6(96)4x=18.8(97)2x=2.6(98)57x=11.4(99)2x=16.4(100)138÷x=23(101)182÷x=13(102)155÷x=31(103)144÷x=6(104)82÷x=41(105)72÷x=9(106)126÷x=21(107)117÷x=39(108)112÷x=7(109)7.6÷x=1.9(110)7.8÷x=0.6(111)12÷x=1(112)4÷x=2(113)9.6÷x=0.4(114)19.2÷x=1.2(115)5.7÷x=0.3(116)4.4÷x=2.2(117)18÷x=1.5(118)x÷10=12(119)x÷3=37(120)x÷15=6(121)x÷11=2(122)x÷92=2(123)x÷6=3(124)x÷29=5(125)x÷5=11(126)x÷2=7(127)x÷12=0.7(128)x÷4=3.8(129)x÷13=0.3(130)x÷35=0.2(131)x÷13=1(132)x÷8=1.2(133)x÷3=4.1(134)x÷21=0.8(135)x÷4=2.2(136)7x+26=180(137)5x+50=235(138)3x+50=137(139)14x+38=94(140)9x+23=203(141)12x+39=171(142)11x+52=250(143)2x+44=160(144)35x+58=233(145)25x-32=143(146)15x-29=121(147)9x-31=86(148)3x-38=130(149)4x-53=107(150)2x-29=19(151)7x-19=72(152)61x-10=173(153)15x-41=64(154)5x+5.5=9.5(155)18x+5.1=23.1(156)22x+4=10.6(157)2x+5.7=22.7(158)3x+5.5=19.6(159)57x+4.1=15.5(160)4x+4.2=6.2(161)3x+5.1=6.3(162)6x+4.6=16(163)0.5x+2.7=13.2(164)1.2x+2=6.8(165)0.2x+2.9=7.3(166)1.1x+2.2=6.6(167)0.6x+1.1=5.3(168)0.2x+4.2=15(169)4.5x+2.5=20.5(170)0.3x+5.3=23.9(171)5.8x+5.1=16.7(172)21x-5.1=3.3(173)37x-4.8=6.3(174)2x-1.9=18.1(175)73x-1.7=12.9(176)12x-2.7=3.3(177)48x-1.2=8.4(178)64x-4.7=8.1(179)3x-3.9=1.5(180)22x-3.6=14(181)1.1x-4.8=9.5(182)3.5x-5.6=11.9(183)0.3x-2.3=12.1(184)3.7x-3=11.8(185)0.2x-2.5=5.9(186)6.4x-5.2=7.6(187)0.4x-1=2.2(188)1.4x-4.2=7(189)0.2x-2.6=16(190)163+3x=352(191)53+3x=122(192)120+9x=201(193)21+2x=157(194)113+27x=275(195)45+20x=205(196)117+2x=155(197)65+4x=261(198)55+30x=235(199)111-19x=54(200)149-2x=119(201)153-8x=17(202)164-8x=124(203)108-3x=30(204)154-60x=34(205)115-3x=97(206)126-30x=36(207)100-2x=26(208)3+1.1x=9.6(209)11+2.8x=22.2(210)9.9+1.2x=18.3(211)4.9+2x=14.9(212)10.6+3.4x=27.6(213)15.6+0.9x=19.2(214)19.7+1.5x=24.2(215)8.9+0.2x=18.5(216)8.4+0.4x=18(217)4.9+7x=6.3(218)8.5+4x=22.1(219)3.9+58x=15.5(220)10.2+31x=19.5(221)6.7+5x=8.2(222)9.3+30x=27.3(223)1.8+4x=17(224)15.5+3x=23.6(225)7.9+3x=17.2(226)16.3-0.4x=15.5(227)19.3-0.5x=8.8(228)12.1-0.3x=9.1(229)9.1-0.5x=8.1(230)16.9-1.2x=2.5(231)9.3-1.3x=2.8(232)15.4-0.2x=13(233)17.8-0.3x=8.5(234)17.6-3.2x=8(235)10.4-22x=1.6(236)17.6-23x=13(237)17.1-12x=1.5(238)15.5-28x=1.5(239)5.1-5x=2.6(240)14.6-11x=9.1(241)9.2-3x=1.1(242)18.3-4x=17.1(243)3.5-2x=1.7(244)19x÷76=2(245)9x÷7=18(246)30x÷5=24(247)45x÷27=5(248)3x÷20=9(249)3x÷4=6(250)5x÷35=4(251)2x÷6=26(252)6x÷48=4(253)0.6x÷9=0.8(254)0.3x÷81=0.2(255)0.2x÷6=0.4(256)6x÷12=1.5(257)0.2x÷8=2.3(258)1.9x÷38=0.3(259)0.2x÷19=1(260)1.2x÷6=1.4(261)0.8x÷6=1.2(262)2x÷6=2.5(263)5x÷14=1(264)12x÷6=1.4(265)3x÷6=3.1(266)8x÷32=0.3(267)18x÷3=3(268)27x÷3=3.6(269)10x÷50=0.4(270)2x÷6=0.9(271)13x+14x=108(272)4x+8x=144(273)10x+15x=175(274)4x+19x=46(275)8x+13x=126(276)6x+8x=28(277)2x+5x=280(278)16x+15x=341(279)5x+8x=39(280)10x-8x=26(281)18x-3x=90(282)8x-5x=54(283)19x-2x=153(284)7x-3x=60(285)7x-4x=33(286)18x-12x=48(287)10x-6x=64(288)6x-2x=52(289)4.7x+8.2x=77.4(290)2x+0.9x=104.4(291)0.9x+0.3x=52.8(292)4.5x+4.4x=142.4(293)1.4x+0.4x=39.6(294)6.5x+6.1x=88.2(295)2.8x+9.7x=100(296)5.7x+5.3x=165(297)5.8x+6.8x=88.2(298)9.1x-4.9x=12.6(299)6.4x-5.4x=14(300)6.6x-1.4x=15.6(301)2.2x-0.2x=6(302)0.8x-0.2x=13.2(303)5.1x-3.4x=30.6(304)2.2x-0.9x=23.4(305)5.4x-2.2x=38.4(306)2.3x-0.8x=30(307)9x+12x+11=137(308)8x+3x+21=186(309)8x+7x+29=59(310)16x+18x+46=352(311)12x+2x+41=83(312)4x+6x+45=255(313)3x+7x+42=322(314)2x+8x+10=170(315)6x+2x+17=193(316)4x+8x-26=82(317)19x+12x-42=206(318)18x+19x-32=264(319)9x+5x-11=199(320)7x+9x-7=329(321)5x+7x-7=305(322)3x+2x-37=233(323)5x+6x-6=247(324)8x+2x-20=220(325)12x-2x+33=73(326)7x-3x+40=64(327)19x-17x+4=24(328)9x-2x+22=50(329)7x-2x+22=117(330)18x-12x+4=34(331)16x-11x+34=94(332)19x-7x+33=69(333)15x-8x+32=46(334)11x-2x-19=116(335)5x-3x-4=50(336)5x-2x-38=73(337)7x-3x-25=63(338)13x-7x-5=25(339)12x-9x-25=14(340)15x-10x-44=16(341)19x-6x-36=29(342)9x-6x-41=22(343)6x+5.1x+0.2=89(344)4.8x+3.8x+4.2=81.6(345)2.6x+6.5x+2.9=21.1(346)1.4x+1.2x+2.2=137.4(347)0.9x+0.2x+0.9=40.5(348)7.3x+5.9x+3.1=95.5(349)0.8x+1.9x+1=33.4(350)1.9x+1.6x+3.9=171.9(351)5.8x+2.3x+1.3=25.6(352)44x+88x+3.6=69.6(353)52x+56x+4.4=166.4(354)68x+31x+4=93.1(355)94x+42x+1.6=69.6(356)82x+78x+3.9=83.9(357)5x+14x+2.6=25.4(358)37x+6x+2.6=84.3(359)45x+53x+2.6=61.4(360)23x+62x+2.8=70.8(361)8.3x+7.1x-1.9=75.1(362)0.3x+5.6x-2.5=97.8(363)3.9x+8x-2.4=80.9(364)1.8x+0.9x-2.5=35.3(365)1.7x+6.8x-0.5=118.5(366)1.9x+2.2x-4.3=118.7(367)5.8x+8.4x-3.7=24.7(368)1.6x+5.4x-4.9=51.1(369)1.9x+1.3x-3.5=92.5(370)45x+61x-4.4=59.2(371)24x+93x-2.5=44.3(372)6x+8x-1.6=39(373)8x+44x-3.2=111.2(374)64x+3x-1.3=79.1(375)4x+9x-3.2=119(376)3x+7x-1.1=3.9(377)58x+44x-3=129.6(378)27x+13x-3.5=8.5(379)7.5x-1.6x+4.1=27.7(380)1.6x-0.8x+3.2=41.6(381)5.3x-3.5x+4.9=17.5(382)5.6x-4.4x+2.1=16.5(383)7.9x-5.3x+4.1=27.5(384)7.7x-5.1x+4.6=22.8(385)5.6x-1.6x+4.7=60.7(386)1.7x-1.4x+2.8=19.9(387)1.2x-0.4x+1.4=34.2(388)97x-40x+4.4=15.8(389)18x-8x+4.6=13.6(390)46x-11x+4.9=46.9(391)20x-14x+2.2=20.2(392)40x-10x+2.3=71.3(393)12x-6x+3.4=17.2(394)59x-32x+1.6=31.3(395)99x-75x+4=28(396)7x-2x+4.3=24.3(397)9.7x-8.4x-2.8=5(398)8.5x-3.6x-1.2=52.7(399)7.1x-1.4x-3.1=19.7(400)7.6x-0.3x-2.6=55.8(401)2.4x-0.5x-0.4=11(402)4.1x-2.3x-3.3=23.7(403)2.8x-1.3x-3=13.5(404)5.9x-1.1x-1.2=56.4(405)6.4x-5.8x-1.4=1(406)27x-16x-0.2=22.9(407)42x-24x-1.4=34.6(408)68x-18x-2.3=37.7(409)74x-47x-3.1=13.1(410)42x-31x-4.4=19.8(411)9x-5x-3.8=22.6(412)44x-36x-0.6=4.2(413)61x-19x-2.4=14.4(414)47x-31x-1=32.6(415)4x+2×90=340(416)10x+7×20=210(417)29x+7×8=114(418)27x+45×4=342(419)11x+66×2=308(420)3x+2×59=259(421)7x+10×11=187(422)4x+50×2=216(423)2x+42×4=260(424)18x-2×9=18(425)8x-19×3=95(426)6x-5×10=106(427)10x-38×2=84(428)17x-2×12=44(429)6x-5×3=177(430)7x-13×8=36(431)23x-12×6=20(432)2x-3×6=148(433)2.4x+0.6×28=36(434)4.7x+0.3×24=21.3(435)0.4x+4.8×2=21.2(436)0.5x+0.3×38=21.4(437)0.9x+0.4×45=24.3(438)0.6x+1.3×15=27.3(439)2.4x+0.6×23=21(440)0.4x+0.5×33=22.5(441)0.2x+3.2×6=28.2(442)5x+12×1.3=33.6(443)31x+4×3.1=18.6(444)48x+11×1=20.6(445)39x+4×0.7=22.3(446)13x+6×1.9=20.5(447)31x+13×1.4=30.6(448)15x+3×1.4=14.7(449)3x+3×2.5=18(450)11x+4×3.4=32.3(451)0.9x-4.5×2=1.8(452)4.9x-0.2×15=6.8(453)2.7x-4.8×2=3.9(454)0.5x-3×3=8.5(455)0.6x-0.8×14=3.2(456)1.5x-0.9×13=7.8(457)2.9x-4.1×2=3.4(458)0.7x-0.4×3=12.8(459)0.4x-0.3×25=8.9(460)26x-18×0.8=1.2(461)9x-11×0.9=2.7(462)33x-12×0.6=12.6(463)9x-2×4.5=6.3(464)19x-3×1.3=3.7(465)45x-5×1.5=6(466)3x-19×0.5=3.7(467)13x-13×0.3=11.7(468)6x-2×1.2=12(469)3(2x+13)=195(470)2(x+36)=78(471)2(18x+44)=196(472)3(x+48)=192(473)4(6x+21)=132(474)3(3x+7)=57(475)2(3x+16)=140(476)3(x+15)=162(477)4(x+34)=188(478)3(x-22)=78(479)3(13x-23)=48(480)6(5x-4)=66(481)7(x-17)=112(482)2(4x-38)=196(483)2(3x-31)=148(484)7(7x-19)=161(485)7(10x-44)=112(486)5(2x-29)=165(487)2(7.2x+2.6)=34(488)4(2.7x+2.7)=43.2(489)2(1.5x+9.8)=31.6(490)2(0.6x+2.3)=8.2(491)2(1.5x+2.9)=20.8(492)2(2.6x+1.1)=43.8(493)2(x+2.3)=30.6(494)2(0.8x+9)=22.8(495)4(0.8x+9)=42.4(496)10(0.7x-6.5)=47(497)3(0.3x-1.6)=39.3(498)4(1.7x-6.8)=27.2(499)9(5.7x-7.9)=31.5(500)3(0.4x-4.8)=7.2(501)21(0.5x-6)=42(502)15(0.9x-7.7)=19.5(503)2(6.4x-3.9)=43.4(504)24(0.9x-3.1)=33.6(505)(10x+14)÷8=13(506)(7x+41)÷5=39(507)(9x+18)÷12=15(508)(8x+9)÷9=9(509)(3x+3)÷18=1(510)(4x+36)÷48=2(511)(2x+36)÷11=8(512)(4x+20)÷2=36(513)(6x+21)÷3=19(514)(9x-24)÷4=57(515)(3x-48)÷18=1(516)(9x-45)÷18=12(517)(4x-39)÷23=3(518)(5x-40)÷15=5(519)(8x-6)÷2=5(520)(19x-31)÷17=6(521)(9x-25)÷4=50(522)(9x-48)÷3=17(523)(4.4x+4.9)÷23=2.7(524)(3.8x+9)÷10=6.6(525)(4.2x+2.2)÷10=6.1(526)(1.8x+0.2)÷8=2.5(527)(3.1x+7.8)÷23=2.9(528)(8.8x+5.6)÷12=5.6(529)(2.1x+1.3)÷13=2.2(530)(1.7x+7.3)÷5=3.5(531)(4.6x+2.9)÷27=1.3(532)(1.2x-7.8)÷6=0.9(533)(7.6x-2.9)÷13=2.7(534)(8.7x-9.3)÷6=2.8(535)(6.7x-2.6)÷4=2.7(536)(6.9x-8.1)÷18=3(537)(9.4x-5.1)÷3=26.5(538)(3.6x-4.4)÷4=7(539)(4.2x-2.6)÷5=14.6(540)(7.3x-6.1)÷2=22.5参考答案(1)x=73(2)x=22(3)x=28(4)x=75(5)x=7(6)x=37(7)x=13(8)x=91(9)x=83(10)x=60(11)x=72(12)x=90(13)x=90(14)x=47(15)x=69(16)x=67(17)x=91(18)x=62(19)x=3.5(20)x=9.4(21)x=2.8(22)x=6.8(23)x=7.3(24)x=9.7(25)x=1.3(26)x=5.1(27)x=4.9(28)x=7.5(29)x=9.2(30)x=4.2(31)x=6.8(32)x=7.2(33)x=8.1(34)x=8.3(35)x=8.8(36)x=9.3(37)x=83(38)x=37(39)x=51(40)x=32(41)x=46(42)x=42(43)x=75(44)x=53(45)x=37(46)x=67(47)x=22(48)x=40(49)x=26(50)x=13(51)x=51(52)x=17(53)x=19(54)x=51(55)x=6.9(56)x=3.1(57)x=8.9(58)x=8.5(59)x=5.1(60)x=0.9(61)x=2.2(62)x=0.8(63)x=1.7(64)x=1.4(65)x=7.5(66)x=5.4(67)x=3.5(68)x=3.6(69)x=2.2(70)x=2.6(71)x=2.5(72)x=5.3(73)x=12(74)x=28(75)x=3(76)x=10(77)x=3(78)x=10(79)x=24(80)x=8(81)x=16(82)x=3(83)x=39(84)x=29(85)x=8(86)x=8(87)x=27(88)x=2(89)x=15(90)x=96(91)x=6.1(92)x=4(93)x=1.6(94)x=0.2(95)x=1.1(96)x=4.7(97)x=1.3(98)x=0.2(99)x=8.2(100)x=6(101)x=14(102)x=5(103)x=24(104)x=2(105)x=8(106)x=6(107)x=3(108)x=16(109)x=4(110)x=13(111)x=12(112)x=2(113)x=24(114)x=16(115)x=19(116)x=2(117)x=12(118)x=120(119)x=111(120)x=90(121)x=22(122)x=184(123)x=18(124)x=145(125)x=55(126)x=14(127)x=8.4(128)x=15.2(129)x=3.9(130)x=7(131)x=13(132)x=9.6(133)x=12.3(134)x=16.8(135)x=8.8(136)x=22(137)x=37(138)x=29(139)x=4(140)x=20(141)x=11(142)x=18(143)x=58(144)x=5(145)x=7(146)x=10(147)x=13(148)x=56(149)x=40(150)x=24(151)x=13(152)x=3(153)x=7(154)x=0.8(155)x=1(156)x=0.3(157)x=8.5(158)x=4.7(159)x=0.2(160)x=0.5(161)x=0.4(162)x=1.9(163)x=21(164)x=4(165)x=22(166)x=4(167)x=7(168)x=54(169)x=4(170)x=62(171)x=2(172)x=0.4(173)x=0.3(174)x=10(175)x=0.2(176)x=0.5(177)x=0.2(178)x=0.2(179)x=1.8(180)x=0.8(181)x=13(182)x=5(183)x=48(184)x=4(185)x=42(186)x=2(187)x=8(188)x=8(189)x=93(190)x=63(191)x=23(192)x=9(193)x=68(194)x=6(195)x=8(196)x=19(197)x=49(198)x=6(199)x=3(200)x=15(201)x=17(202)x=5(203)x=26(204)x=2(205)x=6(206)x=3(207)x=37(208)x=6(209)x=4(210)x=7(211)x=5(212)x=5(213)x=4(214)x=3(215)x=48(216)x=24(217)x=0.2(218)x=3.4(219)x=0.2(220)x=0.3(221)x=0.3(222)x=0.6(223)x=3.8(224)x=2.7(225)x=3.1(226)x=2(227)x=21(228)x=10(229)x=2(230)x=12(231)x=5(232)x=12(233)x=31(234)x=3(235)x=0.4(236)x=0.2(237)x=1.3(238)x=0.5(239)x=0.5(240)x=0.5(241)x=2.7(242)x=0.3(243)x=0.9(244)x=8(245)x=14(246)x=4(247)x=3(248)x=60(249)x=8(250)x=28(251)x=78(252)x=32(253)x=12(254)x=54(255)x=12(256)x=3(257)x=92(258)x=6(259)x=95(260)x=7(261)x=9(262)x=7.5(263)x=2.8(264)x=0.7(265)x=6.2(266)x=1.2(267)x=0.5(268)x=0.4(269)x=2(270)x=2.7(271)x=4(272)x=12(273)x=7(274)x=2(275)x=6(276)x=2(277)x=40(278)x=11(279)x=3(280)x=13(281)x=6(282)x=18(283)x=9(284)x=15(285)x=11(286)x=8(287)x=16(288)x=13(289)x=6(290)x=36(291)x=44(292)x=16(293)x=22(294)x=7(295)x=8(296)x=15(297)x=7(298)x=3(299)x=14(300)x=3(301)x=3(302)x=22(303)x=18(304)x=18(305)x=12(306)x=20(307)x=6(308)x=15(309)x=2(310)x=9(311)x=3(312)x=21(313)x=28(314)x=16(315)x=22(316)x=9(317)x=8(318)x=8(319)x=15(320)x=21(321)x=26(322)x=54(323)x=23(324)x=24(325)x=4(326)x=6(327)x=10(328)x=4(329)x=19(330)x=5(331)x=12(332)x=3(333)x=2(334)x=15(335)x=27(336)x=37(337)x=22(338)x=5(339)x=13(340)x=12(341)x=5(342)x=21(343)x=8(344)x=9(345)x=2(346)x=52(347)x=36(348)x=7(349)x=12(350)x=48(351)x=3(352)x=0.5(353)x=1.5(354)x=0.9(355)x=0.5(356)x=0.5(357)x=1.2(358)x=1.9(359)x=0.6(360)x=0.8(361)x=5(362)x=17(363)x=7(364)x=14(365)x=14(366)x=30(367)x=2(368)x=8(369)x=30(370)x=0.6(371)x=0.4(372)x=2.9(373)x=2.2(374)x=1.2(375)x=9.4(376)x=0.5(377)x=1.3(378)x=0.3(379)x=4(380)x=48(381)x=7(382)x=12(383)x=9(384)x=7(385)x=14(386)x=57(387)x=41(388)x=0.2(389)x=0.9(390)x=1.2(391)x=3(392)