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+88=169(2)x+91=141(3)x+77=139(4)x+97=188(5)x+87=95(6)x+2=90(7)x+63=108(8)x+90=92(9)x+3=32(10)x-68=21(11)x-44=53(12)x-39=56(13)x-39=10(14)x-59=38(15)x-58=34(16)x-54=38(17)x-26=13(18)x-25=28(19)x+8.1=14.9(20)x+3.1=11.8(21)x+1.7=8.9(22)x+1.3=5.9(23)x+4.9=14.7(24)x+4.6=14.5(25)x+9.9=17.5(26)x+2=5(27)x+3.6=10.3(28)x-2.3=4.1(29)x-4.7=3.1(30)x-1=8.3(31)x-1.5=2.2(32)x-2.2=3.6(33)x-5.2=2.7(34)x-0.8=7.7(35)x-2.9=1.5(36)x-2.3=6.3(37)99+x=160(38)77+x=176(39)13+x=64(40)35+x=37(41)32+x=116(42)56+x=96(43)93+x=189(44)28+x=104(45)82+x=126(46)20-x=10(47)39-x=18(48)42-x=34(49)45-x=16(50)53-x=40(51)71-x=34(52)83-x=21(53)33-x=28(54)86-x=25(55)4+x=11.9(56)5+x=5.7(57)1.1+x=4.2(58)6.9+x=15.4(59)8.5+x=13.6(60)8.9+x=11.6(61)6.1+x=9.6(62)3.1+x=4.7(63)1.3+x=3.5(64)9.9-x=1.5(65)4.4-x=2.8(66)8.4-x=4.2(67)6.9-x=5.1(68)9.9-x=9.7(69)4.3-x=1.9(70)8.4-x=5.8(71)8.7-x=3.7(72)6.3-x=6.1(73)2x=158(74)3x=108(75)4x=128(76)3x=195(77)7x=28(78)2x=102(79)3x=114(80)53x=106(81)5x=55(82)0.2x=1.6(83)0.4x=4(84)1.1x=11(85)0.2x=11.2(86)0.7x=7(87)0.4x=12.8(88)4x=16(89)0.4x=19.6(90)4.6x=9.2(91)8x=1.6(92)4x=1.2(93)50x=15(94)3x=4.8(95)23x=4.6(96)2x=3.2(97)7x=8.4(98)3x=2.4(99)65x=13(100)36÷x=6(101)94÷x=2(102)26÷x=13(103)56÷x=2(104)81÷x=27(105)144÷x=9(106)170÷x=2(107)182÷x=7(108)190÷x=5(109)0.6÷x=0.3(110)9.5÷x=1.9(111)10.4÷x=1.3(112)19÷x=1(113)11.8÷x=0.2(114)7.8÷x=0.6(115)2÷x=0.4(116)13.8÷x=0.6(117)17÷x=3.4(118)x÷21=5(119)x÷8=3(120)x÷31=6(121)x÷17=8(122)x÷2=28(123)x÷24=7(124)x÷12=15(125)x÷17=7(126)x÷5=21(127)x÷10=1.1(128)x÷2=0.6(129)x÷6=1.4(130)x÷26=0.6(131)x÷4=1.3(132)x÷23=0.6(133)x÷14=1.2(134)x÷33=0.6(135)x÷46=0.4(136)11x+51=161(137)72x+53=197(138)45x+20=155(139)2x+23=215(140)24x+15=183(141)48x+48=240(142)2x+56=102(143)14x+10=38(144)29x+22=109(145)5x-17=163(146)4x-26=14(147)13x-27=103(148)23x-40=98(149)11x-52=80(150)78x-56=100(151)25x-17=108(152)4x-59=121(153)92x-46=138(154)12x+3.6=15.6(155)10x+1.6=13.6(156)3x+2.5=19.3(157)2x+2.2=10.2(158)15x+2.6=22.1(159)9x+1.5=14.1(160)53x+3=18.9(161)12x+5.4=15(162)43x+1.4=14.3(163)0.5x+4.8=22.8(164)4.8x+5.3=24.5(165)2.7x+4.1=17.6(166)2.7x+3.3=11.4(167)1.9x+1.2=8.8(168)6.7x+1=14.4(169)3.3x+5.5=18.7(170)3.2x+5=14.6(171)1.9x+5.6=20.8(172)39x-4.2=11.4(173)3x-1.2=18.3(174)4x-4.2=3(175)2x-5.4=14.4(176)15x-4.3=10.7(177)6x-2.4=17.4(178)4x-1.9=5.7(179)7x-5.2=9.5(180)5x-5.7=8.3(181)0.7x-1.5=9.7(182)0.6x-2.3=15.1(183)4x-5.1=10.9(184)0.2x-1.3=17.1(185)0.7x-5.2=13.7(186)0.4x-5.7=5.5(187)0.5x-2=1(188)1.8x-5.3=7.3(189)2.7x-2.5=13.7(190)143+69x=281(191)150+20x=270(192)179+64x=371(193)35+23x=196(194)127+3x=166(195)35+15x=125(196)160+29x=305(197)169+9x=196(198)43+13x=238(199)152-4x=52(200)164-2x=120(201)82-9x=64(202)64-10x=34(203)183-75x=33(204)188-10x=108(205)193-10x=33(206)127-3x=118(207)159-4x=47(208)10.1+0.7x=22.7(209)6.4+3.4x=13.2(210)7.2+0.6x=9.6(211)10.1+0.3x=17(212)17.4+0.5x=27.4(213)1.8+0.8x=9(214)17.5+0.4x=33.1(215)2.2+0.3x=8.2(216)11.4+3.4x=21.6(217)2.9+22x=9.5(218)17.5+13x=37(219)12.2+6x=28.4(220)16.4+40x=36.4(221)6.2+24x=13.4(222)18.7+4x=33.5(223)15.1+59x=32.8(224)6.5+92x=24.9(225)17.7+3x=18.6(226)10.7-1.3x=2.9(227)19.2-4.4x=6(228)14.4-0.3x=11.4(229)7.7-0.2x=3.9(230)9-0.7x=2.7(231)19.7-0.7x=7.1(232)17.3-0.2x=5.5(233)10.3-0.2x=5.3(234)16.9-0.2x=2.5(235)18.1-4x=4.9(236)16.6-11x=14.4(237)18.9-3x=1.2(238)9.6-2x=8.6(239)15.8-6x=12.2(240)19.2-13x=15.3(241)12.3-8x=1.1(242)16.8-3x=14.4(243)7.1-4x=5.1(244)6x÷4=39(245)23x÷46=2(246)8x÷4=46(247)3x÷18=8(248)4x÷22=6(249)6x÷45=4(250)8x÷5=16(251)4x÷3=28(252)2x÷9=16(253)0.4x÷8=2.5(254)4.6x÷4=2.3(255)0.2x÷9=1.2(256)1.9x÷38=0.4(257)0.2x÷30=0.5(258)9.5x÷38=0.5(259)1.2x÷8=0.3(260)1.1x÷55=0.2(261)0.4x÷8=1.8(262)14x÷2=4.9(263)40x÷4=2(264)20x÷15=1.2(265)13x÷39=0.2(266)18x÷27=0.2(267)12x÷21=0.4(268)12x÷28=0.6(269)2x÷4=4.8(270)27x÷6=1.8(271)5x+7x=192(272)8x+10x=360(273)11x+12x=184(274)16x+3x=190(275)11x+9x=360(276)7x+16x=115(277)2x+4x=120(278)15x+2x=102(279)2x+8x=160(280)17x-6x=88(281)8x-2x=120(282)7x-5x=18(283)19x-13x=12(284)17x-5x=24(285)8x-3x=100(286)15x-6x=99(287)14x-6x=64(288)9x-2x=126(289)2.1x+4.9x=77(290)7.1x+5.2x=36.9(291)0.6x+2x=31.2(292)7.9x+6.5x=115.2(293)2.8x+4.1x=41.4(294)0.7x+0.3x=6(295)0.5x+1.8x=69(296)0.9x+0.5x=102.2(297)4.7x+5.7x=83.2(298)0.8x-0.5x=5.4(299)7.2x-6.4x=8.8(300)0.8x-0.4x=11.2(301)3x-2.4x=13.8(302)2.6x-1.3x=40.3(303)6x-0.4x=16.8(304)4.6x-2.7x=17.1(305)6.5x-2.1x=22(306)3.5x-1.6x=49.4(307)3x+14x+13=200(308)12x+17x+6=325(309)9x+2x+20=53(310)4x+12x+21=101(311)2x+11x+44=278(312)3x+15x+33=249(313)4x+8x+22=286(314)3x+7x+19=59(315)10x+12x+4=356(316)8x+4x-37=227(317)4x+6x-34=236(318)11x+12x-8=222(319)11x+18x-38=78(320)4x+13x-47=72(321)7x+8x-41=139(322)18x+2x-17=83(323)8x+4x-18=126(324)12x+9x-6=78(325)8x-2x+44=116(326)17x-3x+49=175(327)5x-2x+45=63(328)9x-6x+41=74(329)13x-6x+27=90(330)10x-6x+11=75(331)12x-4x+26=146(332)19x-4x+44=119(333)14x-4x+33=93(334)8x-3x-4=21(335)9x-2x-46=108(336)9x-5x-18=70(337)6x-3x-18=57(338)14x-2x-29=55(339)16x-4x-38=46(340)13x-6x-7=21(341)15x-3x-39=117(342)11x-2x-15=39(343)2.5x+0.6x+3.2=111.7(344)3.9x+3.1x+4.6=67.6(345)1.3x+0.3x+0.9=108.1(346)1.4x+3x+3.8=61(347)0.8x+1.3x+3.6=133.8(348)2.2x+1.3x+2.9=58.9(349)7.5x+4.4x+0.4=155.1(350)9.8x+4.9x+3.2=135.5(351)7.8x+9.1x+1.5=86(352)14x+30x+0.4=35.6(353)18x+10x+3.6=9.2(354)96x+70x+2.8=85.8(355)66x+28x+0.6=38.2(356)96x+97x+0.3=135.4(357)83x+43x+3=154.2(358)73x+52x+0.2=50.2(359)41x+58x+3=141.6(360)64x+78x+4.3=117.9(361)0.8x+0.9x-1.4=143.1(362)2.3x+9.7x-4.8=91.2(363)8.4x+3.2x-3=113(364)1.6x+6.6x-3.2=70.6(365)1.1x+0.4x-2.1=95.4(366)1.8x+5.7x-0.4=52.1(367)2.5x+0.7x-3.5=57.3(368)3.7x+4.4x-3.4=101.9(369)2.7x+7.9x-4.6=80.2(370)30x+68x-4.6=132.6(371)23x+90x-2.9=31(372)6x+10x-2.6=130.2(373)69x+73x-4.8=151.4(374)17x+27x-0.6=144.6(375)85x+78x-3=160(376)26x+24x-4.7=90.3(377)63x+3x-4.9=28.1(378)4x+9x-0.9=38.1(379)8.7x-1.2x+1.6=76.6(380)9.7x-6.8x+2.5=25.7(381)6x-5.4x+2.8=7(382)9.9x-2.9x+1.4=15.4(383)7.1x-0.6x+2.9=93.9(384)7.2x-1.6x+4.3=21.1(385)7.3x-3.6x+1=12.1(386)2.3x-2x+3.7=8.8(387)7.9x-1.4x+4.3=43.3(388)71x-29x+3.8=37.4(389)25x-11x+2.8=46.2(390)38x-13x+2.1=27.1(391)26x-7x+1.8=56.9(392)82x-50x+4.9=33.7(393)35x-9x+3.7=53.1(394)61x-7x+3.9=84.9(395)43x-17x+3.2=42.2(396)36x-7x+2=60(397)1x-0.5x-0.8=40.2(398)3.5x-0.5x-4.2=4.8(399)6.6x-2.8x-0.5=37.5(400)2.5x-1.2x-2.4=26.2(401)3.2x-0.6x-0.3=12.7(402)3.3x-0.6x-0.8=34.3(403)5.4x-2x-3.2=13.8(404)6x-4x-3=13(405)2.2x-0.4x-3.7=41.3(406)65x-41x-1.8=27(407)56x-22x-0.4=9.8(408)33x-26x-3.2=12.9(409)87x-66x-2.3=6.1(410)91x-53x-3.9=30.3(411)50x-39x-3.7=15(412)74x-50x-0.3=16.5(413)90x-56x-3.9=23.3(414)32x-4x-4=32.4(415)2x+13×12=276(416)7x+20×6=148(417)3x+32×5=358(418)2x+27×7=211(419)6x+34×5=314(420)4x+54×3=258(421)3x+8×20=331(422)17x+79×2=192(423)9x+3×24=180(424)2x-2×29=114(425)3x-2×6=153(426)2x-12×6=20(427)7x-77×2=21(428)4x-6×5=54(429)10x-14×8=38(430)14x-14×2=42(431)2x-11×2=80(432)4x-30×3=42(433)0.7x+0.4×36=27(434)1.7x+1×16=24.5(435)0.4x+3.3×6=35.8(436)0.5x+1.8×8=23.4(437)0.2x+1.4×4=14.8(438)0.5x+0.7×19=15.3(439)1.5x+0.7×27=35.4(440)0.4x+0.7×12=20.8(441)2.1x+0.9×3=17.4(442)7x+2×1.3=5.4(443)33x+3×1.6=18(444)23x+6×2.9=26.6(445)26x+46×0.2=19.6(446)6x+3×0.6=11.4(447)13x+49×0.4=39.1(448)11x+22×0.2=17.6(449)14x+4×3.1=18(450)12x+4×4.1=27.2(451)1.3x-0.3×29=9.5(452)1.3x-2.3×3=8.7(453)1.1x-0.3×27=9.5(454)1.2x-0.5×22=5.8(455)0.4x-0.4×21=10.4(456)0.8x-0.5×9=15.5(457)0.4x-0.2×33=7.8(458)3.7x-4.8×3=4.1(459)0.9x-0.5×19=6.7(460)4x-2×4.2=1.2(461)25x-8×0.4=4.3(462)43x-4×2.4=7.6(463)8x-3×4.8=4(464)44x-2×3.8=10(465)6x-2×3.7=1(466)20x-27×0.2=12.6(467)13x-6×0.8=1.7(468)24x-27×0.3=1.5(469)5(2x+23)=135(470)8(2x+17)=184(471)4(3x+10)=160(472)3(7x+23)=153(473)2(3x+35)=160(474)3(x+15)=105(475)9(x+2)=81(476)2(29x+7)=188(477)2(16x+41)=146(478)15(2x-42)=180(479)2(27x-44)=20(480)4(2x-5)=132(481)2(6x-37)=106(482)2(4x-24)=64(483)12(6x-26)=120(484)2(9x-47)=50(485)2(4x-14)=28(486)9(4x-43)=153(487)6(0.2x+5.2)=49.2(488)3(2.2x+2.9)=35.1(489)4(0.3x+6.1)=47.2(490)11(x+2.1)=45.1(491)2(2.9x+4.1)=31.4(492)2(0.2x+3.5)=11.8(493)6(2.1x+2.3)=39(494)2(3.8x+0.4)=31.2(495)2(0.2x+2.4)=12.4(496)5(7x-4)=50(497)13(0.2x-3.9)=37.7(498)23(0.6x-3)=41.4(499)3(0.5x-9.8)=6.6(500)3(1.8x-6.7)=33.9(501)21(0.4x-4.2)=46.2(502)11(1.5x-4.7)=14.3(503)2(0.7x-4.4)=19.2(504)3(1.7x-9.6)=32.4(505)(12x+12)÷12=5(506)(18x+2)÷46=2(507)(x+26)÷22=2(508)(15x+30)÷8=15(509)(2x+37)÷43=1(510)(15x+39)÷2=117(511)(x+3)÷12=1(512)(10x+20)÷7=40(513)(5x+40)÷19=5(514)(10x-42)÷49=2(515)(15x-29)÷2=53(516)(10x-7)÷13=1(517)(9x-23)÷10=13(518)(3x-46)÷23=1(519)(3x-41)÷11=2(520)(17x-33)÷2=111(521)(12x-15)÷9=5(522)(4x-34)÷33=2(523)(1.4x+3.9)÷23=0.9(524)(1.9x+5.2)÷20=1.4(525)(6.9x+1.7)÷14=1.6(526)(4.9x+9.6)÷17=4.6(527)(8.3x+4.3)÷5=15.8(528)(2x+9.9)÷37=0.7(529)(9.3x+2)÷2=19.6(530)(3.8x+2.8)÷32=0.8(531)(5.1x+6.8)÷17=4.9(532)(1.9x-2.7)÷3=6.7(533)(4.6x-6.4)÷3=17.8(534)(4.5x-9.3)÷4=7.8(535)(9.4x-4.2)÷2=44.9(536)(7.2x-3.3)÷3=6.1(537)(8.9x-4.8)÷5=2.6(538)(2.6x-9.8)÷30=0.8(539)(9.5x-3.5)÷5=6.9(540)(4x-5.2)÷6=5.8参考答案(1)x=81(2)x=50(3)x=62(4)x=91(5)x=8(6)x=88(7)x=45(8)x=2(9)x=29(10)x=89(11)x=97(12)x=95(13)x=49(14)x=97(15)x=92(16)x=92(17)x=39(18)x=53(19)x=6.8(20)x=8.7(21)x=7.2(22)x=4.6(23)x=9.8(24)x=9.9(25)x=7.6(26)x=3(27)x=6.7(28)x=6.4(29)x=7.8(30)x=9.3(31)x=3.7(32)x=5.8(33)x=7.9(34)x=8.5(35)x=4.4(36)x=8.6(37)x=61(38)x=99(39)x=51(40)x=2(41)x=84(42)x=40(43)x=96(44)x=76(45)x=44(46)x=10(47)x=21(48)x=8(49)x=29(50)x=13(51)x=37(52)x=62(53)x=5(54)x=61(55)x=7.9(56)x=0.7(57)x=3.1(58)x=8.5(59)x=5.1(60)x=2.7(61)x=3.5(62)x=1.6(63)x=2.2(64)x=8.4(65)x=1.6(66)x=4.2(67)x=1.8(68)x=0.2(69)x=2.4(70)x=2.6(71)x=5(72)x=0.2(73)x=79(74)x=36(75)x=32(76)x=65(77)x=4(78)x=51(79)x=38(80)x=2(81)x=11(82)x=8(83)x=10(84)x=10(85)x=56(86)x=10(87)x=32(88)x=4(89)x=49(90)x=2(91)x=0.2(92)x=0.3(93)x=0.3(94)x=1.6(95)x=0.2(96)x=1.6(97)x=1.2(98)x=0.8(99)x=0.2(100)x=6(101)x=47(102)x=2(103)x=28(104)x=3(105)x=16(106)x=85(107)x=26(108)x=38(109)x=2(110)x=5(111)x=8(112)x=19(113)x=59(114)x=13(115)x=5(116)x=23(117)x=5(118)x=105(119)x=24(120)x=186(121)x=136(122)x=56(123)x=168(124)x=180(125)x=119(126)x=105(127)x=11(128)x=1.2(129)x=8.4(130)x=15.6(131)x=5.2(132)x=13.8(133)x=16.8(134)x=19.8(135)x=18.4(136)x=10(137)x=2(138)x=3(139)x=96(140)x=7(141)x=4(142)x=23(143)x=2(144)x=3(145)x=36(146)x=10(147)x=10(148)x=6(149)x=12(150)x=2(151)x=5(152)x=45(153)x=2(154)x=1(155)x=1.2(156)x=5.6(157)x=4(158)x=1.3(159)x=1.4(160)x=0.3(161)x=0.8(162)x=0.3(163)x=36(164)x=4(165)x=5(166)x=3(167)x=4(168)x=2(169)x=4(170)x=3(171)x=8(172)x=0.4(173)x=6.5(174)x=1.8(175)x=9.9(176)x=1(177)x=3.3(178)x=1.9(179)x=2.1(180)x=2.8(181)x=16(182)x=29(183)x=4(184)x=92(185)x=27(186)x=28(187)x=6(188)x=7(189)x=6(190)x=2(191)x=6(192)x=3(193)x=7(194)x=13(195)x=6(196)x=5(197)x=3(198)x=15(199)x=25(200)x=22(201)x=2(202)x=3(203)x=2(204)x=8(205)x=16(206)x=3(207)x=28(208)x=18(209)x=2(210)x=4(211)x=23(212)x=20(213)x=9(214)x=39(215)x=20(216)x=3(217)x=0.3(218)x=1.5(219)x=2.7(220)x=0.5(221)x=0.3(222)x=3.7(223)x=0.3(224)x=0.2(225)x=0.3(226)x=6(227)x=3(228)x=10(229)x=19(230)x=9(231)x=18(232)x=59(233)x=25(234)x=72(235)x=3.3(236)x=0.2(237)x=5.9(238)x=0.5(239)x=0.6(240)x=0.3(241)x=1.4(242)x=0.8(243)x=0.5(244)x=26(245)x=4(246)x=23(247)x=48(248)x=33(249)x=30(250)x=10(251)x=21(252)x=72(253)x=50(254)x=2(255)x=54(256)x=8(257)x=75(258)x=2(259)x=2(260)x=10(261)x=36(262)x=0.7(263)x=0.2(264)x=0.9(265)x=0.6(266)x=0.3(267)x=0.7(268)x=1.4(269)x=9.6(270)x=0.4(271)x=16(272)x=20(273)x=8(274)x=10(275)x=18(276)x=5(277)x=20(278)x=6(279)x=16(280)x=8(281)x=20(282)x=9(283)x=2(284)x=2(285)x=20(286)x=11(287)x=8(288)x=18(289)x=11(290)x=3(291)x=12(292)x=8(293)x=6(294)x=6(295)x=30(296)x=73(297)x=8(298)x=18(299)x=11(300)x=28(301)x=23(302)x=31(303)x=3(304)x=9(305)x=5(306)x=26(307)x=11(308)x=11(309)x=3(310)x=5(311)x=18(312)x=12(313)x=22(314)x=4(315)x=16(316)x=22(317)x=27(318)x=10(319)x=4(320)x=7(321)x=12(322)x=5(323)x=12(324)x=4(325)x=12(326)x=9(327)x=6(328)x=11(329)x=9(330)x=16(331)x=15(332)x=5(333)x=6(334)x=5(335)x=22(336)x=22(337)x=25(338)x=7(339)x=7(340)x=4(341)x=13(342)x=6(343)x=35(344)x=9(345)x=67(346)x=13(347)x=62(348)x=16(349)x=13(350)x=9(351)x=5(352)x=0.8(353)x=0.2(354)x=0.5(355)x=0.4(356)x=0.7(357)x=1.2(358)x=0.4(359)x=1.4(360)x=0.8(361)x=85(362)x=8(363)x=10(364)x=9(365)x=65(366)x=7(367)x=19(368)x=13(369)x=8(370)x=1.4(371)x=0.3(372)x=8.3(373)x=1.1(374)x=3.3(375)x=1(376)x=1.9(377)x=0.5(378)x=3(379)x=10(380)x=8(381)x=7(382)x=2(383)x=14(384)x=3(385)x=3(386)x=17(387)x=6(388)x=0.8(389)x=3.1(390)x=1(391)x=2.9(392)x=0.9(3