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+58=139(2)x+85=111(3)x+55=139(4)x+74=171(5)x+4=26(6)x+65=123(7)x+91=128(8)x+82=128(9)x+37=78(10)x-41=25(11)x-21=33(12)x-35=52(13)x-16=43(14)x-32=51(15)x-82=16(16)x-30=57(17)x-27=64(18)x-17=31(19)x+9=16.3(20)x+2.7=3(21)x+9.3=12.4(22)x+8.4=14.4(23)x+8.7=11.9(24)x+5.9=12.1(25)x+6.3=14.5(26)x+8.9=10.2(27)x+8.7=12.1(28)x-0.4=4.4(29)x-0.5=1.1(30)x-1.7=1.6(31)x-5.4=3.4(32)x-2.3=3.4(33)x-6.9=1.3(34)x-0.3=2.4(35)x-1.7=1.5(36)x-5.7=2.5(37)54+x=61(38)8+x=13(39)28+x=45(40)18+x=53(41)19+x=109(42)78+x=152(43)5+x=80(44)82+x=170(45)25+x=73(46)70-x=52(47)32-x=15(48)43-x=11(49)73-x=29(50)74-x=38(51)93-x=61(52)72-x=11(53)76-x=15(54)79-x=28(55)1+x=10.5(56)6.9+x=9.6(57)2.2+x=3.2(58)0.5+x=6.5(59)2.3+x=7.3(60)9.5+x=15.2(61)7.3+x=11.1(62)0.9+x=6.4(63)2.5+x=9.5(64)9.1-x=2.8(65)6.3-x=4.1(66)9-x=7.7(67)7.7-x=5.4(68)6.5-x=6.3(69)3.7-x=2.2(70)6.3-x=3.3(71)6.3-x=6.1(72)9.8-x=3.4(73)25x=125(74)21x=84(75)10x=20(76)2x=36(77)4x=28(78)2x=16(79)6x=138(80)73x=146(81)5x=200(82)0.2x=7.4(83)0.8x=19.2(84)1.7x=5.1(85)2.6x=13(86)0.2x=14(87)1.1x=12.1(88)0.3x=15.6(89)0.2x=1.8(90)0.9x=6.3(91)19x=7.6(92)5x=6(93)4x=12.8(94)5x=4(95)73x=14.6(96)30x=6(97)51x=15.3(98)65x=13(99)8x=16.8(100)156÷x=2(101)184÷x=46(102)86÷x=43(103)68÷x=34(104)9÷x=3(105)32÷x=8(106)144÷x=2(107)114÷x=2(108)162÷x=18(109)12.6÷x=0.7(110)3÷x=1.5(111)4÷x=0.2(112)6.5÷x=1.3(113)9.6÷x=0.2(114)6.2÷x=0.2(115)12.5÷x=2.5(116)6.3÷x=0.3(117)6.4÷x=1.6(118)x÷8=15(119)x÷10=15(120)x÷24=5(121)x÷6=27(122)x÷13=8(123)x÷3=15(124)x÷5=32(125)x÷11=13(126)x÷4=26(127)x÷22=0.2(128)x÷61=0.3(129)x÷4=2.1(130)x÷11=1.6(131)x÷6=0.5(132)x÷4=3(133)x÷4=3.3(134)x÷10=0.5(135)x÷4=2.3(136)63x+50=176(137)5x+43=53(138)66x+13=211(139)8x+55=119(140)15x+25=130(141)32x+38=198(142)7x+57=85(143)21x+47=89(144)57x+39=153(145)7x-24=67(146)17x-54=99(147)11x-39=71(148)2x-43=55(149)32x-34=94(150)2x-46=64(151)23x-35=149(152)10x-52=68(153)2x-41=129(154)2x+5.5=15.1(155)3x+4.5=12.9(156)4x+3.5=8.3(157)3x+5.4=12(158)37x+1.7=16.5(159)13x+1.8=16.1(160)60x+3.6=21.6(161)24x+4.4=14(162)2x+2.1=3.7(163)1.3x+1.2=5.1(164)1.6x+2.8=12.4(165)0.2x+3.9=6.5(166)5.2x+1.3=16.9(167)0.4x+4.8=24(168)5.6x+3.3=14.5(169)0.6x+2=4.4(170)1.3x+4.1=17.1(171)0.3x+4.6=11.5(172)29x-2.6=6.1(173)27x-4.8=3.3(174)87x-4.3=13.1(175)14x-3=16.6(176)100x-2.6=17.4(177)79x-3.2=12.6(178)85x-5.6=11.4(179)4x-2.2=9(180)2x-4.5=4.5(181)1.2x-5.2=6.8(182)1.4x-2.7=1.5(183)0.5x-3.5=9.5(184)1.2x-4.6=7.4(185)1x-3=8(186)2.7x-2.4=8.4(187)2.6x-2.4=2.8(188)1.4x-1.2=15.6(189)0.7x-4.3=10.4(190)182+22x=248(191)154+2x=204(192)18+22x=172(193)148+19x=205(194)95+3x=290(195)58+3x=91(196)196+43x=282(197)51+26x=181(198)132+91x=314(199)145-16x=113(200)177-40x=97(201)86-3x=17(202)83-12x=47(203)175-11x=142(204)126-2x=112(205)138-37x=64(206)116-10x=26(207)185-81x=23(208)12+2.5x=27(209)18.8+2.7x=24.2(210)18.4+1.2x=37.6(211)17+4.8x=36.2(212)4.5+0.3x=15.9(213)10+0.3x=17.5(214)15.5+2.2x=24.3(215)15.4+0.5x=35.4(216)8.3+8x=24.3(217)5.7+14x=19.7(218)10.3+14x=13.1(219)15.8+6x=24.2(220)5.2+5x=17.2(221)7.7+73x=22.3(222)10.9+39x=30.4(223)11.4+7x=28.2(224)12.5+14x=30.7(225)18.4+3x=24.1(226)17.2-0.5x=14.7(227)19.8-1.4x=15.6(228)12.7-0.7x=9.9(229)8.7-0.8x=3.1(230)18.4-0.5x=12.9(231)8.4-0.2x=5.2(232)13.9-0.4x=6.7(233)13.6-6.3x=1(234)19.7-0.4x=18.1(235)14.9-9x=12.2(236)9.6-11x=7.4(237)14.5-2x=11.3(238)10.4-2x=1.6(239)14.1-18x=5.1(240)7.2-12x=2.4(241)17.9-5x=2.9(242)16.2-4x=1.8(243)10.1-37x=2.7(244)6x÷12=7(245)4x÷6=28(246)6x÷4=12(247)4x÷36=3(248)2x÷4=20(249)68x÷34=4(250)35x÷10=7(251)3x÷12=5(252)76x÷19=8(253)0.5x÷4=1(254)1.2x÷4=2.7(255)1x÷4=0.5(256)4.9x÷7=2.8(257)0.4x÷17=0.8(258)3.5x÷7=2.5(259)6.8x÷17=0.8(260)1x÷45=0.4(261)0.6x÷3=4.4(262)20x÷4=4(263)33x÷44=0.3(264)64x÷6=3.2(265)8x÷7=1.6(266)52x÷26=0.6(267)6x÷14=0.3(268)4x÷2=0.6(269)5x÷6=3(270)9x÷30=0.6(271)17x+14x=62(272)17x+5x=242(273)2x+18x=80(274)10x+4x=126(275)3x+4x=154(276)19x+17x=360(277)15x+4x=209(278)5x+3x=88(279)11x+13x=96(280)14x-9x=15(281)7x-3x=56(282)17x-11x=12(283)10x-3x=119(284)10x-4x=42(285)7x-2x=25(286)18x-12x=48(287)10x-3x=98(288)14x-5x=90(289)3.6x+6.6x=20.4(290)7.2x+5x=97.6(291)2.4x+2.2x=64.4(292)9x+7.5x=165(293)0.7x+3.3x=52(294)2.7x+0.3x=24(295)1.5x+0.2x=28.9(296)8.7x+1.5x=30.6(297)5.1x+3.2x=124.5(298)2.8x-2.5x=9.9(299)4.7x-4.2x=1(300)2.4x-0.7x=6.8(301)2.7x-1.6x=2.2(302)5.7x-3.8x=11.4(303)4.4x-2.5x=5.7(304)8.1x-6.6x=4.5(305)6.7x-0.5x=37.2(306)2x-0.5x=28.5(307)3x+7x+42=82(308)8x+5x+33=319(309)3x+17x+10=130(310)15x+18x+35=398(311)14x+7x+26=68(312)3x+4x+2=317(313)8x+16x+26=98(314)4x+3x+12=306(315)9x+13x+47=91(316)8x+6x-46=234(317)6x+17x-32=37(318)18x+19x-40=256(319)3x+4x-36=244(320)16x+6x-48=194(321)4x+6x-38=32(322)13x+9x-28=214(323)7x+9x-3=317(324)7x+6x-7=279(325)12x-8x+44=68(326)19x-16x+13=31(327)15x-2x+43=160(328)7x-5x+46=98(329)8x-5x+6=51(330)16x-5x+36=102(331)19x-15x+34=70(332)8x-6x+28=56(333)5x-2x+43=151(334)13x-6x-25=52(335)7x-4x-48=15(336)5x-2x-45=24(337)18x-4x-6=22(338)5x-2x-17=46(339)14x-8x-27=15(340)10x-5x-22=33(341)5x-3x-7=69(342)16x-9x-30=40(343)6.5x+6x+2.7=115.2(344)3.8x+0.4x+1.8=39.6(345)3.7x+4.5x+0.5=33.3(346)7.7x+4.1x+4.5=146.1(347)3.4x+0.3x+4.3=63.5(348)6.9x+1.6x+2.3=95.8(349)4.3x+3.5x+1.4=95(350)3x+3.7x+4=151.4(351)5.4x+4.8x+0.5=71.9(352)26x+92x+3.4=62.4(353)95x+20x+4=119(354)32x+98x+0.3=117.3(355)25x+18x+2.9=88.9(356)4x+15x+0.8=16(357)88x+9x+1.3=20.7(358)17x+53x+2.2=51.2(359)18x+94x+3.3=36.9(360)5x+3x+1.2=29.2(361)7x+1.8x-2.5=85.5(362)4x+1.1x-1.4=75.1(363)2.6x+1.6x-2=56.8(364)7.3x+5.5x-2.5=163.9(365)0.6x+1.3x-1.9=30.4(366)9.1x+7.8x-2.2=149.9(367)3.3x+1.7x-3.4=41.6(368)6.2x+3x-1.4=81.4(369)9.7x+5x-1.5=86.7(370)8x+7x-2.3=53.2(371)46x+61x-2.8=82.8(372)16x+89x-0.5=41.5(373)73x+95x-3.5=97.3(374)37x+65x-2=89.8(375)22x+29x-2.9=32.8(376)3x+55x-4=77.2(377)3x+11x-1.2=52(378)32x+45x-4.7=80(379)6x-3.3x+4.7=37.1(380)2.7x-0.6x+3.4=81.1(381)4x-2.9x+1.4=5.8(382)3.9x-0.7x+4.9=72.1(383)9.7x-9.3x+3.3=5.7(384)9.6x-2.8x+0.5=48.1(385)8x-7.6x+1.7=4.5(386)2x-0.9x+4=39.2(387)3.9x-0.4x+0.8=60.3(388)38x-29x+1.5=24(389)77x-52x+0.8=28.3(390)21x-13x+1.6=19.2(391)59x-41x+1.3=8.5(392)30x-24x+4.4=17.6(393)68x-50x+0.2=14.6(394)14x-9x+0.6=1.6(395)95x-9x+2.2=62.4(396)94x-89x+2.9=7.4(397)5.8x-4.5x-2.4=6.7(398)3.5x-0.4x-4.5=76.1(399)4.1x-1.4x-0.3=53.7(400)5.8x-4.1x-4.4=14.3(401)3.5x-3.3x-1.4=2.2(402)0.7x-0.3x-0.6=14.2(403)9.4x-0.4x-4.5=58.5(404)2.4x-0.9x-3.5=58(405)4.7x-3.7x-0.9=16.1(406)33x-7x-1.9=44.9(407)87x-7x-0.9=47.1(408)37x-26x-2.6=17.2(409)39x-28x-0.9=23.3(410)53x-49x-0.4=2(411)48x-25x-0.8=8.4(412)96x-84x-2.1=1.5(413)92x-31x-1.7=47.1(414)47x-30x-3.6=1.5(415)15x+74×2=253(416)8x+46×2=180(417)3x+14×8=250(418)3x+21×5=129(419)5x+5×29=165(420)17x+63×2=262(421)7x+14×2=84(422)4x+5×40=244(423)8x+34×4=304(424)19x-39×3=35(425)3x-12×5=135(426)14x-8×7=14(427)9x-19×4=68(428)3x-2×84=27(429)2x-40×4=28(430)3x-80×2=26(431)3x-9×15=15(432)2x-7×25=23(433)1.4x+3.7×5=25.5(434)2.7x+0.3×23=17.7(435)1.3x+4×2=18.4(436)0.3x+3.8×5=31.3(437)0.3x+1.7×9=24.3(438)0.4x+2.6×7=21.8(439)1.1x+1.9×5=28.2(440)1.4x+1.3×11=22.7(441)0.9x+0.5×26=19.3(442)6x+36×0.2=12(443)41x+6×3.2=35.6(444)9x+23×0.5=26.8(445)5x+4×3.3=23.2(446)49x+6×2.9=37(447)2x+48×0.2=12.2(448)8x+6×2.3=15.4(449)29x+33×0.4=24.8(450)9x+23×0.4=29(451)1.9x-0.2×5=2.8(452)0.6x-0.4×12=9(453)0.4x-0.4×25=3.6(454)0.5x-0.4×5=5.5(455)1.6x-0.9×7=8.1(456)2.1x-0.9×4=2.7(457)1.3x-0.4×21=3.3(458)0.4x-3.2×3=1.6(459)0.8x-0.2×38=12.4(460)5x-11×0.6=4.4(461)32x-6×1=10(462)2x-15×0.2=6.8(463)5x-13×0.8=2.6(464)2x-16×0.2=3.2(465)16x-14×0.4=8.8(466)45x-3×1.6=4.2(467)49x-17×0.2=6.4(468)20x-2×2=12(469)3(2x+20)=102(470)3(x+19)=144(471)2(12x+10)=140(472)2(5x+44)=178(473)3(3x+30)=108(474)3(2x+13)=177(475)3(2x+9)=81(476)4(2x+10)=168(477)2(3x+4)=80(478)3(2x-32)=60(479)6(2x-27)=150(480)3(10x-32)=84(481)5(2x-19)=145(482)3(2x-32)=168(483)3(4x-12)=144(484)3(9x-49)=96(485)8(26x-30)=176(486)9(13x-24)=135(487)4(0.2x+2.3)=19.6(488)2(0.3x+1.6)=20.6(489)2(3.1x+1.2)=27.2(490)3(0.5x+4.4)=43.2(491)2(0.4x+3.2)=32.8(492)2(0.7x+8.2)=41.6(493)4(0.4x+3.2)=30.4(494)3(0.8x+7.3)=48.3(495)4(0.9x+9.2)=47.6(496)18(0.4x-2.2)=18(497)8(0.3x-1.3)=47.2(498)14(0.3x-3.4)=23.8(499)15(3.5x-5)=30(500)3(4.5x-1.9)=21.3(501)6(2.1x-9.4)=31.8(502)2(2.2x-0.8)=20.4(503)14(0.4x-7.1)=40.6(504)16(0.3x-4.4)=25.6(505)(3x+15)÷6=15(506)(3x+12)÷3=29(507)(7x+25)÷3=13(508)(6x+6)÷2=51(509)(13x+42)÷12=23(510)(14x+6)÷34=1(511)(10x+10)÷2=25(512)(15x+30)÷5=15(513)(12x+36)÷8=18(514)(5x-39)÷6=6(515)(6x-23)÷5=11(516)(3x-19)÷28=2(517)(15x-33)÷13=9(518)(7x-30)÷12=1(519)(13x-10)÷19=7(520)(13x-28)÷5=23(521)(10x-8)÷17=6(522)(15x-36)÷6=19(523)(6.6x+0.8)÷10=4.7(524)(2.3x+3.6)÷26=1.2(525)(5.3x+7.6)÷3=25.5(526)(6.8x+1.7)÷33=1.7(527)(8.2x+3.4)÷2=46.8(528)(5.7x+7.1)÷5=15.1(529)(3x+8.4)÷8=7.8(530)(4.7x+0.4)÷9=3.7(531)(7.5x+2.6)÷22=0.8(532)(8.3x-7.5)÷3=5.8(533)(3.6x-0.8)÷4=4.3(534)(4x-2.8)÷18=3.4(535)(1.2x-6)÷36=0.2(536)(0.8x-8.4)÷4=0.3(537)(6.6x-1.2)÷2=25.8(538)(9.1x-3.6)÷29=2.7(539)(6.1x-5.9)÷5=9.8(540)(4.3x-2.5)÷19=1参考答案(1)x=81(2)x=26(3)x=84(4)x=97(5)x=22(6)x=58(7)x=37(8)x=46(9)x=41(10)x=66(11)x=54(12)x=87(13)x=59(14)x=83(15)x=98(16)x=87(17)x=91(18)x=48(19)x=7.3(20)x=0.3(21)x=3.1(22)x=6(23)x=3.2(24)x=6.2(25)x=8.2(26)x=1.3(27)x=3.4(28)x=4.8(29)x=1.6(30)x=3.3(31)x=8.8(32)x=5.7(33)x=8.2(34)x=2.7(35)x=3.2(36)x=8.2(37)x=7(38)x=5(39)x=17(40)x=35(41)x=90(42)x=74(43)x=75(44)x=88(45)x=48(46)x=18(47)x=17(48)x=32(49)x=44(50)x=36(51)x=32(52)x=61(53)x=61(54)x=51(55)x=9.5(56)x=2.7(57)x=1(58)x=6(59)x=5(60)x=5.7(61)x=3.8(62)x=5.5(63)x=7(64)x=6.3(65)x=2.2(66)x=1.3(67)x=2.3(68)x=0.2(69)x=1.5(70)x=3(71)x=0.2(72)x=6.4(73)x=5(74)x=4(75)x=2(76)x=18(77)x=7(78)x=8(79)x=23(80)x=2(81)x=40(82)x=37(83)x=24(84)x=3(85)x=5(86)x=70(87)x=11(88)x=52(89)x=9(90)x=7(91)x=0.4(92)x=1.2(93)x=3.2(94)x=0.8(95)x=0.2(96)x=0.2(97)x=0.3(98)x=0.2(99)x=2.1(100)x=78(101)x=4(102)x=2(103)x=2(104)x=3(105)x=4(106)x=72(107)x=57(108)x=9(109)x=18(110)x=2(111)x=20(112)x=5(113)x=48(114)x=31(115)x=5(116)x=21(117)x=4(118)x=120(119)x=150(120)x=120(121)x=162(122)x=104(123)x=45(124)x=160(125)x=143(126)x=104(127)x=4.4(128)x=18.3(129)x=8.4(130)x=17.6(131)x=3(132)x=12(133)x=13.2(134)x=5(135)x=9.2(136)x=2(137)x=2(138)x=3(139)x=8(140)x=7(141)x=5(142)x=4(143)x=2(144)x=2(145)x=13(146)x=9(147)x=10(148)x=49(149)x=4(150)x=55(151)x=8(152)x=12(153)x=85(154)x=4.8(155)x=2.8(156)x=1.2(157)x=2.2(158)x=0.4(159)x=1.1(160)x=0.3(161)x=0.4(162)x=0.8(163)x=3(164)x=6(165)x=13(166)x=3(167)x=48(168)x=2(169)x=4(170)x=10(171)x=23(172)x=0.3(173)x=0.3(174)x=0.2(175)x=1.4(176)x=0.2(177)x=0.2(178)x=0.2(179)x=2.8(180)x=4.5(181)x=10(182)x=3(183)x=26(184)x=10(185)x=11(186)x=4(187)x=2(188)x=12(189)x=21(190)x=3(191)x=25(192)x=7(193)x=3(194)x=65(195)x=11(196)x=2(197)x=5(198)x=2(199)x=2(200)x=2(201)x=23(202)x=3(203)x=3(204)x=7(205)x=2(206)x=9(207)x=2(208)x=6(209)x=2(210)x=16(211)x=4(212)x=38(213)x=25(214)x=4(215)x=40(216)x=2(217)x=1(218)x=0.2(219)x=1.4(220)x=2.4(221)x=0.2(222)x=0.5(223)x=2.4(224)x=1.3(225)x=1.9(226)x=5(227)x=3(228)x=4(229)x=7(230)x=11(231)x=16(232)x=18(233)x=2(234)x=4(235)x=0.3(236)x=0.2(237)x=1.6(238)x=4.4(239)x=0.5(240)x=0.4(241)x=3(242)x=3.6(243)x=0.2(244)x=14(245)x=42(246)x=8(247)x=27(248)x=40(249)x=2(250)x=2(251)x=20(252)x=2(253)x=8(254)x=9(255)x=2(256)x=4(257)x=34(258)x=5(259)x=2(260)x=18(261)x=22(262)x=0.8(263)x=0.4(264)x=0.3(265)x=1.4(266)x=0.3(267)x=0.7(268)x=0.3(269)x=3.6(270)x=2(271)x=2(272)x=11(273)x=4(274)x=9(275)x=22(276)x=10(277)x=11(278)x=11(279)x=4(280)x=3(281)x=14(282)x=2(283)x=17(284)x=7(285)x=5(286)x=8(287)x=14(288)x=10(289)x=2(290)x=8(291)x=14(292)x=10(293)x=13(294)x=8(295)x=17(296)x=3(297)x=15(298)x=33(299)x=2(300)x=4(301)x=2(302)x=6(303)x=3(304)x=3(305)x=6(306)x=19(307)x=4(308)x=22(309)x=6(310)x=11(311)x=2(312)x=45(313)x=3(314)x=42(315)x=2(316)x=20(317)x=3(318)x=8(319)x=40(320)x=11(321)x=7(322)x=11(323)x=20(324)x=22(325)x=6(326)x=6(327)x=9(328)x=26(329)x=15(330)x=6(331)x=9(332)x=14(333)x=36(334)x=11(335)x=21(336)x=23(337)x=2(338)x=21(339)x=7(340)x=11(341)x=38(342)x=10(343)x=9(344)x=9(345)x=4(346)x=12(347)x=16(348)x=11(349)x=12(350)x=22(351)x=7(352)x=0.5(353)x=1(354)x=0.9(355)x=2(356)x=0.8(357)x=0.2(358)x=0.7(359)x=0.3(360)x=3.5(361)x=10(362)x=15(363)x=14(364)x=13(365)x=17(366)x=9(367)x=9(368)x=9(369)x=6(370)x=3.7(371)x=0.8(372)x=0.4(373)x=0.6(374)x=0.9(375)x=0.7(376)x=1.4(377)x=3.8(378)x=1.1(379)x=12(380)x=37(381)x=4(382)x=21(383)x=6(384)x=7(385)x=7(386)x=32(387)x=17(388)x=2.5(389)x=1.1(390)x=2.2(391)x=0.4(392)x=2.2(39