五年级数学(方程)专项练习题及答案

五年级数学(方程)专项练习题及答案(1)x+99=120(2)x+13=48(3)x+29=56(4)x+90=176(5)x+53=152(6)x+88=177(7)x+17=73(8)x+14=18(9)x+28=62(10)x-29=45(11)x-5=45(12)x-16=79(13)x-35=23(14)x-19=53(15)x-35=20(16)x-25=50(17)x-41=55(18)x-58=15(19)x+4.1=11.3(20)x+1.4=3.8(21)x+5.8=7.6(22)x+4.6=8.2(23)x+9.6=19.5(24)x+2.3=6.9(25)x+9=18.5(26)x+4.4=14(27)x+8.8=14.2(28)x-0.6=3.7(29)x-4.5=1.9(30)x-4.3=1.3(31)x-3.9=3.7(32)x-2.1=5.2(33)x-1.6=1(34)x-2.3=4.4(35)x-0.9=7.8(36)x-3.2=4.8(37)10+x=82(38)14+x=32(39)96+x=141(40)6+x=71(41)30+x=72(42)5+x=61(43)90+x=120(44)79+x=99(45)36+x=133(46)31-x=16(47)22-x=20(48)94-x=89(49)27-x=16(50)26-x=16(51)48-x=27(52)79-x=73(53)60-x=35(54)93-x=26(55)8.5+x=14.4(56)4.4+x=9.6(57)0.9+x=1.5(58)0.9+x=8.8(59)1.8+x=7.3(60)8.9+x=14.9(61)7+x=16.2(62)2.6+x=10.9(63)6.4+x=15.8(64)7.8-x=7.4(65)3.6-x=3(66)7.8-x=4.5(67)6.7-x=5.1(68)3.3-x=1.6(69)9.3-x=4.9(70)9.2-x=4.5(71)9.1-x=2.4(72)5.4-x=1.3(73)30x=180(74)12x=60(75)3x=102(76)16x=96(77)2x=50(78)23x=92(79)5x=195(80)9x=108(81)30x=150(82)0.5x=9(83)4.3x=17.2(84)0.3x=15.3(85)1.4x=19.6(86)0.3x=7.2(87)0.3x=18(88)8.6x=17.2(89)1.2x=15.6(90)1.5x=6(91)36x=18(92)6x=17.4(93)4x=16.8(94)2x=16(95)15x=15(96)17x=18.7(97)56x=16.8(98)73x=14.6(99)36x=14.4(100)56÷x=8(101)141÷x=3(102)144÷x=8(103)176÷x=44(104)10÷x=2(105)132÷x=3(106)176÷x=4(107)108÷x=12(108)187÷x=11(109)16.5÷x=1.1(110)6.3÷x=0.9(111)14.7÷x=2.1(112)6.2÷x=0.2(113)12.6÷x=0.9(114)3.9÷x=1.3(115)7.5÷x=2.5(116)9.8÷x=1.4(117)7.8÷x=0.6(118)x÷11=2(119)x÷13=14(120)x÷73=2(121)x÷8=22(122)x÷18=4(123)x÷4=3(124)x÷5=30(125)x÷9=21(126)x÷5=7(127)x÷4=2.6(128)x÷2=0.7(129)x÷8=2.3(130)x÷39=0.2(131)x÷4=0.2(132)x÷11=1.8(133)x÷3=4.7(134)x÷3=3.8(135)x÷8=1.9(136)2x+32=46(137)26x+26=208(138)2x+36=204(139)82x+56=220(140)12x+16=124(141)9x+31=211(142)9x+34=151(143)49x+48=146(144)33x+18=117(145)8x-55=73(146)47x-39=55(147)35x-46=24(148)74x-42=106(149)25x-12=88(150)4x-23=41(151)3x-12=21(152)47x-31=110(153)50x-29=71(154)11x+4.5=11.1(155)3x+2=10.1(156)23x+2=20.4(157)5x+1.1=8.6(158)27x+4.3=23.2(159)20x+4.6=20.6(160)16x+4.5=15.7(161)25x+1.5=21.5(162)4x+1.4=9.4(163)1.5x+5.7=16.2(164)0.3x+2=6.2(165)0.5x+1.7=7.7(166)0.4x+3.5=11.9(167)0.9x+1.6=21.4(168)5x+5.8=15.8(169)0.5x+1.9=14.4(170)2.4x+1=8.2(171)2x+5.9=25.9(172)17x-1.4=10.5(173)35x-3=11(174)3x-5.9=6.1(175)3x-4.5=4.5(176)4x-1.7=15.5(177)6x-2.4=13.2(178)15x-4.9=5.6(179)14x-5.2=1.8(180)32x-4=2.4(181)4.8x-1.7=7.9(182)0.2x-5.3=4.5(183)1.6x-1.3=1.9(184)0.2x-4.1=1.3(185)0.2x-4.4=7.6(186)8.8x-5.2=12.4(187)2.3x-2.1=9.4(188)0.4x-3.2=15.6(189)1.2x-4.2=1.8(190)145+27x=307(191)120+7x=190(192)183+4x=239(193)60+2x=164(194)152+15x=212(195)184+64x=376(196)174+52x=278(197)149+34x=251(198)18+6x=180(199)126-22x=82(200)71-12x=35(201)147-16x=35(202)103-4x=59(203)120-25x=20(204)155-2x=53(205)173-18x=83(206)146-21x=41(207)179-43x=93(208)13.7+1.2x=18.5(209)9.6+0.8x=12(210)10.2+0.3x=22.5(211)17+1.2x=27.8(212)8.6+0.4x=23.4(213)15+0.3x=16.2(214)17+0.6x=27.8(215)2.2+2.7x=21.1(216)13.6+0.6x=25(217)9.6+94x=28.4(218)15.3+15x=28.8(219)10+4x=16(220)16.5+35x=23.5(221)12.1+2x=23.5(222)2+4x=20(223)8.5+17x=23.8(224)8+21x=16.4(225)5.8+2x=19.8(226)8.4-0.8x=6(227)12.5-0.7x=9.7(228)17.8-2.4x=5.8(229)16.5-6.7x=3.1(230)13-0.8x=5(231)17.6-1.2x=3.2(232)11.3-0.3x=3.2(233)16.1-0.6x=8.3(234)19.8-0.3x=4.5(235)17.4-23x=8.2(236)13.3-4x=2.1(237)2.9-2x=1.7(238)3.4-3x=1.6(239)19-2x=4.2(240)13.2-6x=11.4(241)10.1-17x=5(242)11.6-41x=3.4(243)18.1-2x=3.9(244)15x÷4=30(245)32x÷16=6(246)5x÷30=6(247)33x÷6=11(248)5x÷18=10(249)6x÷2=15(250)14x÷24=7(251)8x÷16=6(252)78x÷52=3(253)1.2x÷6=1(254)0.6x÷4=1.5(255)4.8x÷4=3.6(256)2.2x÷11=0.4(257)3x÷20=0.3(258)0.8x÷52=0.2(259)2.8x÷35=0.4(260)0.2x÷9=0.4(261)0.3x÷6=3.2(262)12x÷26=0.6(263)4x÷12=0.5(264)72x÷36=0.4(265)27x÷9=1.5(266)4x÷12=1.1(267)11x÷33=0.5(268)3x÷7=1.8(269)2x÷18=1(270)4x÷12=1(271)5x+15x=160(272)9x+18x=81(273)6x+12x=144(274)11x+6x=272(275)10x+11x=273(276)8x+6x=238(277)5x+4x=360(278)6x+14x=180(279)13x+5x=108(280)9x-3x=66(281)4x-2x=66(282)5x-3x=12(283)10x-7x=36(284)15x-3x=144(285)6x-2x=88(286)6x-3x=90(287)8x-6x=44(288)12x-4x=128(289)9.3x+7.2x=66(290)2.5x+0.3x=5.6(291)4.9x+0.7x=67.2(292)6.2x+8x=113.6(293)2.4x+1.9x=17.2(294)4.8x+3.2x=48(295)5x+2.3x=138.7(296)8.8x+1.8x=53(297)0.3x+1.8x=35.7(298)1.8x-1.4x=18.4(299)6.7x-2.9x=49.4(300)3.1x-1.3x=19.8(301)4.7x-1.7x=21(302)7.8x-1.7x=61(303)8.4x-7.8x=5.4(304)2.7x-1.8x=27(305)3.1x-1.6x=31.5(306)2.3x-1.1x=38.4(307)14x+17x+44=230(308)5x+7x+19=115(309)2x+8x+45=285(310)5x+11x+17=273(311)11x+14x+14=214(312)13x+3x+41=217(313)7x+11x+10=190(314)6x+12x+47=191(315)10x+15x+26=351(316)5x+2x-30=166(317)16x+13x-6=52(318)2x+9x-27=160(319)11x+9x-23=57(320)9x+18x-44=253(321)16x+9x-10=65(322)4x+3x-31=284(323)2x+8x-20=160(324)19x+15x-18=84(325)7x-4x+3=18(326)18x-8x+11=121(327)15x-2x+15=54(328)18x-5x+30=160(329)14x-12x+24=42(330)13x-6x+49=154(331)14x-8x+38=104(332)11x-6x+27=47(333)16x-7x+35=107(334)19x-3x-37=59(335)13x-4x-20=34(336)11x-3x-29=91(337)6x-2x-16=80(338)18x-12x-24=18(339)5x-2x-2=103(340)10x-2x-8=104(341)7x-4x-36=30(342)18x-2x-30=66(343)7.7x+6.2x+2.4=99.7(344)2.7x+6x+4.1=21.5(345)7.2x+2.5x+1.2=20.6(346)6.6x+6.2x+1.2=52.4(347)1.8x+0.7x+4.4=139.4(348)0.6x+0.8x+0.3=130.5(349)2.6x+5.5x+4.5=61.2(350)2.8x+1.6x+0.2=13.4(351)3.3x+5.5x+3.9=30.3(352)44x+49x+2=104.3(353)45x+15x+1.5=73.5(354)16x+3x+0.4=101.1(355)79x+26x+3.9=24.9(356)91x+96x+2.8=152.4(357)68x+28x+4.1=109.7(358)7x+47x+1.1=114.5(359)11x+44x+3.7=25.7(360)10x+2x+1.2=31.2(361)2.7x+8.5x-1.3=77.1(362)1.8x+1.6x-1.5=134.5(363)8x+0.7x-3.1=40.4(364)3.1x+3.5x-1=98(365)4.1x+4x-2.8=191.6(366)1.6x+1.1x-3.7=117.8(367)4x+2.1x-4.5=62.6(368)5.1x+3.8x-4.5=48.9(369)3.9x+0.8x-1.6=7.8(370)10x+11x-1.3=36.5(371)68x+91x-3.5=28.3(372)73x+31x-2.3=28.9(373)29x+25x-4.7=97.9(374)99x+51x-3.6=71.4(375)21x+15x-1.1=49.3(376)11x+35x-1.3=67.7(377)53x+56x-1.6=129.2(378)42x+60x-3.7=16.7(379)1.2x-0.2x+4.7=70.7(380)8x-3.8x+3.2=41(381)7.6x-0.2x+1=45.4(382)1.7x-1.3x+4.2=26.6(383)6.3x-2.7x+4.8=19.2(384)2.5x-0.7x+2.8=26.2(385)1.9x-1.3x+0.2=25.4(386)4.1x-3.8x+2.6=4.4(387)9.4x-1.3x+2.2=83.2(388)80x-50x+1.1=31.1(389)91x-46x+2.7=20.7(390)85x-27x+2.1=54.3(391)39x-29x+1.5=15.5(392)75x-55x+1=5(393)83x-21x+2.4=76.8(394)42x-38x+4=8.4(395)38x-28x+4.3=23.3(396)87x-72x+1.8=9.3(397)9.4x-8.4x-0.4=6.6(398)4.1x-2.3x-2.4=13.8(399)3.9x-1.6x-4.2=30.3(400)8.4x-2.7x-3.9=47.4(401)4.4x-3x-3.5=6.3(402)5.1x-4.1x-0.8=8.2(403)2.2x-1.1x-3.2=45.2(404)5.4x-0.5x-0.7=9.1(405)7.4x-0.5x-4.8=36.6(406)45x-27x-2.2=3.2(407)85x-67x-1=8(408)51x-2x-3.6=55.2(409)31x-20x-3.7=9.5(410)53x-35x-1.1=11.5(411)97x-77x-2.7=13.3(412)95x-68x-4.5=14.4(413)52x-26x-0.7=25.3(414)79x-58x-4.7=7.9(415)10x+18×3=184(416)4x+22×5=158(417)5x+5×36=260(418)4x+33×4=192(419)7x+85×2=254(420)20x+3×42=186(421)9x+15×5=129(422)4x+38×4=176(423)2x+67×2=164(424)2x-16×3=24(425)5x-29×4=39(426)4x-23×4=16(427)22x-4×12=62(428)8x-19×4=36(429)6x-7×16=62(430)3x-5×2=131(431)4x-23×3=15(432)3x-2×8=98(433)0.8x+3×4=16.8(434)2.2x+0.4×23=18(435)1x+1.9×5=24.5(436)1.2x+0.2×12=7.2(437)0.6x+0.5×2=10.6(438)1.3x+0.8×15=14.6(439)0.6x+1.8×6=18.6(440)3.6x+0.4×24=24(441)0.8x+3.8×5=38.2(442)23x+26×0.3=23.9(443)20x+38×0.4=23.2(444)3x+30×0.5=25.2(445)2x+27×0.7=27.7(446)4x+11×0.3=15.7(447)2x+21×0.6=18.6(448)24x+15×0.8=16.8(449)10x+4×1.4=13.6(450)3x+40×0.2=14.6(451)2.1x-1.3×7=7.7(452)0.4x-0.8×4=2.4(453)1.4x-0.7×22=2.8(454)2.1x-1.2×10=2.7(455)4.5x-1.3×2=10.9(456)0.8x-0.5×20=4.4(457)2x-0.5×23=6.5(458)4.2x-0.4×22=8(459)0.5x-0.3×12=4.9(460)46x-3×3.3=8.5(461)4x-6×1.6=4(462)43x-24×0.2=3.8(463)42x-27×0.3=4.5(464)38x-5×2=5.2(465)28x-48×0.2=1.6(466)2x-6×0.8=4(467)29x-2×4.6=5.3(468)44x-8×1.2=3.6(469)2(x+7)=104(470)2(9x+37)=110(471)11(x+3)=88(472)9(x+18)=189(473)2(2x+21)=178(474)3(2x+2)=36(475)2(7x+26)=136(476)2(3x+18)=126(477)2(x+34)=90(478)3(2x-15)=39(479)5(x-18)=80(480)2(9x-9)=90(481)3(x-2)=78(482)3(4x-26)=42(483)8(6x-31)=184(484)7(4x-34)=154(485)5(4x-3)=105(486)3(28x-28)=84(487)2(0.9x+2.6)=44.8(488)2(0.7x+4.1)=19.4(489)2(2.7x+6.7)=24.2(490)2(3x+6.9)=31.8(491)5(0.5x+7)=45(492)2(0.4x+5.6)=15.2(493)4(0.3x+4.1)=20(494)4(1.7x+3.7)=42(495)2(3.2x+2.6)=30.8(496)6(0.5x-0.8)=25.2(497)8(1.7x-2.4)=8(498)21(0.3x-4.5)=44.1(499)2(3.6x-6.2)=45.2(500)3(0.3x-8.9)=7.5(501)6(2.2x-4.7)=37.8(502)11(3x-9.2)=30.8(503)8(3.9x-4.7)=24.8(504)18(2.1x-6.5)=34.2(505)(7x+41)÷2=122(506)(11x+18)÷26=10(507)(4x+8)÷2=22(508)(11x+26)÷30=6(509)(7x+21)÷8=21(510)(3x+29)÷2=34(511)(14x+48)÷3=100(512)(2x+38)÷28=3(513)(7x+34)÷2=73(514)(3x-13)÷23=1(515)(16x-10)÷10=15(516)(4x-24)÷4=20(517)(9x-21)÷10=6(518)(15x-27)÷6=8(519)(5x-43)÷6=17(520)(3x-43)÷8=4(521)(6x-3)÷3=27(522)(11x-11)÷22=3(523)(1.1x+6.6)÷22=0.6(524)(2x+3.2)÷14=0.8(525)(7.6x+7.5)÷3=10.1(526)(2.2x+9.8)÷8=5.9(527)(1.5x+4.5)÷18=0.5(528)(5.1x+1.5)÷10=7.8(529)(6x+7.8)÷6=9.3(530)(2.1x+7.8)÷27=0.6(531)(2.8x+2.3)÷3=10.1(532)(4.1x-4.7)÷2=36.6(533)(8.5x-8.3)÷3=2.9(534)(4.4x-1)÷13=0.6(535)(8.8x-2.5)÷13=5.9(536)(2x-1)÷2=11.5(537)(5.3x-9.7)÷15=4.3(538)(8x-3.4)÷2=14.3(539)(5.2x-3)÷2=27.1(540)(1.9x-3.9)÷2=14.2参考答案(1)x=21(2)x=35(3)x=27(4)x=86(5)x=99(6)x=89(7)x=56(8)x=4(9)x=34(10)x=74(11)x=50(12)x=95(13)x=58(14)x=72(15)x=55(16)x=75(17)x=96(18)x=73(19)x=7.2(20)x=2.4(21)x=1.8(22)x=3.6(23)x=9.9(24)x=4.6(25)x=9.5(26)x=9.6(27)x=5.4(28)x=4.3(29)x=6.4(30)x=5.6(31)x=7.6(32)x=7.3(33)x=2.6(34)x=6.7(35)x=8.7(36)x=8(37)x=72(38)x=18(39)x=45(40)x=65(41)x=42(42)x=56(43)x=30(44)x=20(45)x=97(46)x=15(47)x=2(48)x=5(49)x=11(50)x=10(51)x=21(52)x=6(53)x=25(54)x=67(55)x=5.9(56)x=5.2(57)x=0.6(58)x=7.9(59)x=5.5(60)x=6(61)x=9.2(62)x=8.3(63)x=9.4(64)x=0.4(65)x=0.6(66)x=3.3(67)x=1.6(68)x=1.7(69)x=4.4(70)x=4.7(71)x=6.7(72)x=4.1(73)x=6(74)x=5(75)x=34(76)x=6(77)x=25(78)x=4(79)x=39(80)x=12(81)x=5(82)x=18(83)x=4(84)x=51(85)x=14(86)x=24(87)x=60(88)x=2(89)x=13(90)x=4(91)x=0.5(92)x=2.9(93)x=4.2(94)x=8(95)x=1(96)x=1.1(97)x=0.3(98)x=0.2(99)x=0.4(100)x=7(101)x=47(102)x=18(103)x=4(104)x=5(105)x=44(106)x=44(107)x=9(108)x=17(109)x=15(110)x=7(111)x=7(112)x=31(113)x=14(114)x=3(115)x=3(116)x=7(117)x=13(118)x=22(119)x=182(120)x=146(121)x=176(122)x=72(123)x=12(124)x=150(125)x=189(126)x=35(127)x=10.4(128)x=1.4(129)x=18.4(130)x=7.8(131)x=0.8(132)x=19.8(133)x=14.1(134)x=11.4(135)x=15.2(136)x=7(137)x=7(138)x=84(139)x=2(140)x=9(141)x=20(142)x=13(143)x=2(144)x=3(145)x=16(146)x=2(147)x=2(148)x=2(149)x=4(150)x=16(151)x=11(152)x=3(153)x=2(154)x=0.6(155)x=2.7(156)x=0.8(157)x=1.5(158)x=0.7(159)x=0.8(160)x=0.7(161)x=0.8(162)x=2(163)x=7(164)x=14(165)x=12(166)x=21(167)x=22(168)x=2(169)x=25(170)x=3(171)x=10(172)x=0.7(173)x=0.4(174)x=4(175)x=3(176)x=4.3(177)x=2.6(178)x=0.7(179)x=0.5(180)x=0.2(181)x=2(182)x=49(183)x=2(184)x=27(185)x=60(186)x=2(187)x=5(188)x=47(189)x=5(190)x=6(191)x=10(192)x=14(193)x=52(194)x=4(195)x=3(196)x=2(197)x=3(198)x=27(199)x=2(200)x=3(201)x=7(202)x=11(203)x=4(204)x=51(205)x=5(206)x=5(207)x=2(208)x=4(209)x=3(210)x=41(211)x=9(212)x=37(213)x=4(214)x=18(215)x=7(216)x=19(217)x=0.2(218)x=0.9(219)x=1.5(220)x=0.2(221)x=5.7(222)x=4.5(223)x=0.9(224)x=0.4(225)x=7(226)x=3(227)x=4(228)x=5(229)x=2(230)x=10(231)x=12(232)x=27(233)x=13(234)x=51(235)x=0.4(236)x=2.8(237)x=0.6(238)x=0.6(239)x=7.4(240)x=0.3(241)x=0.3(242)x=0.2(243)x=7.1(244)x=8(245)x=3(246)x=36(247)x=2(248)x=36(249)x=5(250)x=12(251)x=12(252)x=2(253)x=5(254)x=10(255)x=3(256)x=2(257)x=2(258)x=13(259)x=5(260)x=18(261)x=64(262)x=1.3(263)x=1.5(264)x=0.2(265)x=0.5(266)x=3.3(267)x=1.5(268)x=4.2(269)x=9(270)x=3(271)x=8(272)x=3(273)x=8(274)x=16(275)x=13(276)x=17(277)x=40(278)x=9(279)x=6(280)x=11(281)x=33(282)x=6(283)x=12(284)x=12(285)x=22(286)x=30(287)x=22(288)x=16(289)x=4(290)x=2(291)x=12(292)x=8(293)x=4(294)x=6(295)x=19(296)x=5(297)x=17(298)x=46(299)x=13(300)x=11(301)x=7(302)x=10(303)x=9(304)x=30(305)x=21(306)x=32(307)x=6(308)x=8(309)x=24(310)x=16(311)x=8(312)x=11(313)x=10(314)x=8(315)x=13(316)x=28(317)x=2(318)x=17(319)x=4(320)x=11(321)x=3(322)x=45(323)x=18(324)x=3(325)x=5(326)x=11(327)x=3(328)x=10(329)x=9(330)x=15(331)x=11(332)x=4(333)x=8(334)x=6(335)x=6(336)x=15(337)x=24(338)x=7(339)x=35(340)x=14(341)x=22(342)x=6(343)x=7(344)x=2(345)x=2(346)x=4(347)x=54(348)x=93(349)x=7(350)x=3(351)x=3(352)x=1.1(353)x=1.2(354)x=5.3(355)x=0.2(356)x=0.8(357)x=1.1(358)x=2.1(359)x=0.4(360)x=2.5(361)x=7(362)x=40(363)x=5(364)x=15(365)x=24(366)x=45(367)x=11(368)x=6(369)x=2(370)x=1.8(371)x=0.2(372)x=0.3(373)x=1.9(374)x=0.5(375)x=1.4(376)x=1.5(377)x=1.2(378)x=0.2(379)x=66(380)x=9(381)x=6(382)x=56(383)x=4(384)x=13(385)x=42(386)x=6(387)x=10(388)x=1(389)x=0.4(390)x=0.9(391)x=1.4(392)