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+30=129(2)x+42=66(3)x+88=120(4)x+78=133(5)x+96=118(6)x+53=94(7)x+93=174(8)x+5=70(9)x+61=128(10)x-35=41(11)x-13=63(12)x-74=21(13)x-28=62(14)x-38=58(15)x-26=44(16)x-29=27(17)x-75=19(18)x-81=13(19)x+0.2=2.4(20)x+4.8=10.6(21)x+5.3=13.1(22)x+5.1=13.9(23)x+9.6=14.2(24)x+5.9=7.3(25)x+7.3=16.9(26)x+7.5=16(27)x+2=4.5(28)x-2.6=2.4(29)x-0.4=8.7(30)x-2.7=4.5(31)x-2.7=3.4(32)x-0.9=8.2(33)x-2.3=3.1(34)x-1.4=5(35)x-1.6=1.5(36)x-1.9=1.4(37)67+x=131(38)29+x=44(39)34+x=66(40)98+x=154(41)62+x=149(42)33+x=58(43)29+x=104(44)58+x=91(45)23+x=34(46)94-x=68(47)84-x=39(48)92-x=66(49)79-x=58(50)73-x=68(51)79-x=54(52)68-x=62(53)69-x=26(54)97-x=14(55)5.9+x=9.8(56)0.6+x=6.9(57)2.2+x=3.4(58)2.7+x=4.6(59)6.1+x=11.5(60)4.2+x=13.9(61)7.5+x=9.1(62)9.8+x=14.9(63)7.2+x=12.2(64)9.8-x=2.4(65)5.7-x=5.4(66)5.6-x=3.2(67)6.1-x=5.8(68)9.3-x=3.1(69)4.6-x=3.6(70)8.1-x=6.1(71)3-x=1.8(72)9.3-x=6.9(73)6x=114(74)14x=154(75)15x=195(76)6x=66(77)4x=100(78)4x=96(79)27x=162(80)2x=96(81)17x=187(82)0.3x=3.9(83)0.4x=3.6(84)0.3x=0.9(85)3.8x=11.4(86)0.2x=19.8(87)0.9x=14.4(88)0.2x=9.2(89)0.8x=11.2(90)0.2x=12.8(91)4x=5.2(92)85x=17(93)36x=14.4(94)4x=6.4(95)63x=12.6(96)3x=16.2(97)2x=8.2(98)30x=18(99)3x=18(100)119÷x=7(101)189÷x=21(102)72÷x=18(103)63÷x=9(104)39÷x=13(105)132÷x=22(106)184÷x=2(107)120÷x=40(108)18÷x=2(109)12.1÷x=1.1(110)15.2÷x=0.8(111)6÷x=0.3(112)14.5÷x=2.9(113)7.6÷x=0.4(114)4÷x=0.4(115)4÷x=2(116)3.4÷x=1.7(117)8.4÷x=2.1(118)x÷16=10(119)x÷3=24(120)x÷27=5(121)x÷51=2(122)x÷48=3(123)x÷20=5(124)x÷4=31(125)x÷48=2(126)x÷5=9(127)x÷4=3(128)x÷9=1.2(129)x÷5=1.8(130)x÷4=2.1(131)x÷43=0.2(132)x÷61=0.2(133)x÷2=0.6(134)x÷9=2(135)x÷5=2.8(136)11x+30=173(137)3x+44=176(138)7x+54=173(139)33x+16=148(140)4x+59=235(141)19x+27=84(142)16x+10=122(143)62x+39=163(144)6x+39=87(145)12x-20=16(146)2x-51=51(147)10x-20=140(148)4x-29=71(149)2x-31=133(150)13x-33=97(151)54x-50=112(152)8x-34=142(153)26x-12=170(154)4x+2.8=14.4(155)3x+1.6=3.1(156)55x+3=19.5(157)7x+1.2=20.1(158)22x+5=13.8(159)48x+3.9=23.1(160)3x+3.3=21.9(161)72x+3.4=17.8(162)40x+5.8=17.8(163)0.3x+1.4=9.5(164)0.6x+1.7=11.9(165)0.4x+2.1=21.7(166)4.9x+4.9=24.5(167)0.3x+2.2=4.9(168)0.9x+4.4=24.2(169)0.2x+5.5=8.5(170)1x+2.9=17.9(171)0.5x+1.2=10.7(172)30x-5.3=12.7(173)11x-1.7=2.7(174)3x-5.1=13.8(175)7x-5.7=11.8(176)3x-2.6=11.2(177)6x-3.9=12.3(178)8x-4=7.2(179)58x-4.6=12.8(180)9x-5.3=5.5(181)0.2x-5.4=5.2(182)3x-3.4=2.6(183)6x-4.3=13.7(184)0.7x-3=3.3(185)0.2x-3.4=14.2(186)0.4x-5.4=5(187)6x-1=17(188)1.9x-4.5=10.7(189)0.3x-1.6=1.7(190)129+63x=255(191)182+11x=270(192)88+61x=271(193)56+2x=84(194)137+2x=205(195)194+10x=364(196)48+4x=228(197)188+12x=284(198)185+2x=317(199)66-11x=11(200)193-19x=98(201)123-51x=21(202)188-25x=38(203)182-3x=74(204)155-8x=67(205)176-13x=150(206)179-54x=17(207)195-17x=127(208)19.1+0.6x=25.7(209)4.5+2.1x=12.9(210)1.5+0.6x=10.5(211)14.3+7.4x=29.1(212)18.1+7x=32.1(213)8.7+1.5x=28.2(214)5.4+2.1x=11.7(215)19.3+0.3x=20.8(216)2.5+0.7x=15.8(217)18.8+2x=34.8(218)1+14x=15(219)16.1+29x=30.6(220)12.6+2x=14.2(221)17.4+2x=32.6(222)14.9+2x=27.1(223)18.1+5x=30.6(224)16.3+53x=32.2(225)4.7+2x=15.3(226)12-0.4x=1.2(227)9.7-1.3x=4.5(228)17.6-2.3x=13(229)16.3-0.2x=13.3(230)6.4-0.6x=2.8(231)13.9-3.1x=4.6(232)17.9-0.7x=8.1(233)16-0.2x=8.8(234)5.5-0.4x=3.9(235)10.5-8x=1.7(236)19.3-2x=6.1(237)17-5x=7(238)16.7-3x=10.7(239)11.9-6x=2.3(240)19.9-2x=4.5(241)18.1-16x=6.9(242)9.9-2x=5.7(243)18.4-30x=3.4(244)16x÷48=3(245)40x÷10=12(246)20x÷8=10(247)16x÷12=8(248)11x÷44=2(249)6x÷5=30(250)63x÷14=9(251)20x÷5=16(252)6x÷3=26(253)5.2x÷26=0.6(254)2.6x÷2=3.9(255)0.4x÷8=2.1(256)0.4x÷32=0.2(257)3.6x÷12=1.2(258)0.8x÷12=0.6(259)2.1x÷49=0.3(260)0.3x÷6=2.2(261)0.3x÷18=1.1(262)9x÷39=0.3(263)31x÷62=0.3(264)5x÷7=2.5(265)12x÷8=0.3(266)18x÷99=0.2(267)14x÷7=1.2(268)6x÷3=1.4(269)8x÷4=4.4(270)15x÷12=1(271)4x+9x=143(272)4x+9x=234(273)2x+3x=290(274)6x+2x=208(275)7x+6x=169(276)8x+12x=140(277)17x+10x=189(278)5x+8x=273(279)4x+18x=242(280)9x-3x=96(281)8x-3x=105(282)11x-3x=40(283)15x-7x=72(284)7x-5x=16(285)15x-10x=65(286)13x-7x=36(287)17x-8x=81(288)12x-8x=12(289)3.6x+2.2x=121.8(290)8.7x+1.6x=41.2(291)1.4x+3.1x=58.5(292)2x+0.2x=61.6(293)2.5x+7.4x=69.3(294)2.3x+1.8x=151.7(295)5.9x+0.8x=13.4(296)3.3x+1.9x=140.4(297)2.5x+2.9x=70.2(298)0.8x-0.4x=26(299)9.3x-7.1x=6.6(300)9x-3.3x=34.2(301)3.5x-3.3x=4.4(302)3.6x-0.6x=72(303)7.4x-0.3x=42.6(304)8.6x-1.3x=65.7(305)8.7x-8.5x=2(306)4.4x-1.8x=18.2(307)13x+15x+42=238(308)8x+7x+33=183(309)8x+7x+33=198(310)17x+15x+20=84(311)5x+4x+4=355(312)6x+14x+4=44(313)6x+13x+15=243(314)10x+16x+21=151(315)10x+4x+15=169(316)2x+13x-10=50(317)11x+7x-17=235(318)18x+6x-21=27(319)15x+10x-29=96(320)9x+5x-15=27(321)3x+2x-26=159(322)10x+8x-32=184(323)5x+2x-28=161(324)4x+11x-31=44(325)5x-2x+11=107(326)6x-4x+20=34(327)16x-5x+8=52(328)15x-6x+10=73(329)15x-13x+6=16(330)14x-7x+40=96(331)9x-3x+18=96(332)8x-3x+48=128(333)18x-10x+22=94(334)9x-2x-7=42(335)17x-10x-36=20(336)8x-2x-23=115(337)15x-2x-34=44(338)5x-3x-10=34(339)18x-13x-30=20(340)13x-5x-4=52(341)11x-8x-28=26(342)18x-10x-18=14(343)0.4x+0.3x+3=4.4(344)8.8x+6.6x+4.9=112.7(345)1.3x+3.3x+0.6=101.8(346)9.7x+4.5x+1.5=115.1(347)8.6x+5.1x+3.5=154.2(348)0.9x+5.8x+0.3=107.5(349)3.4x+9.3x+1.9=78.1(350)1.5x+7.4x+4.1=84.2(351)4.4x+3.6x+1.6=65.6(352)61x+42x+3.6=24.2(353)23x+80x+4=34.9(354)14x+71x+4=114.5(355)33x+5x+0.3=61.1(356)48x+19x+2=55.6(357)46x+49x+2.9=154.9(358)61x+46x+3.7=132.1(359)7x+29x+2.5=42.1(360)6x+27x+2.7=88.5(361)5.3x+4.7x-2.7=57.3(362)0.7x+1.7x-0.5=57.1(363)0.5x+1.1x-3.5=87.7(364)3.3x+2.9x-4.1=26.9(365)4.5x+1.7x-1.3=29.7(366)9.7x+5.8x-0.9=76.6(367)6.7x+7.4x-1.5=97.2(368)4.5x+5.7x-1.5=110.7(369)3.3x+2.9x-0.6=166.8(370)74x+17x-3.9=114.4(371)19x+20x-4.3=182.9(372)27x+4x-2=29(373)74x+87x-2.1=78.4(374)75x+49x-4.5=131.9(375)39x+53x-0.7=128.1(376)43x+35x-0.6=108.6(377)29x+58x-0.3=130.2(378)35x+54x-0.2=160(379)3.4x-1x+4.7=19.1(380)6.3x-1.5x+1.3=39.7(381)3.3x-3.1x+3.2=4.8(382)3.3x-1.5x+4.5=42.3(383)6.1x-4.5x+2.3=24.7(384)3.3x-3x+4.8=6.6(385)4.1x-3.9x+2.1=4.1(386)5.6x-0.5x+0.7=61.9(387)3.7x-0.3x+2.4=46.6(388)42x-32x+4.1=23.1(389)49x-20x+0.8=26.9(390)29x-7x+3.6=43.2(391)25x-17x+2.7=26.7(392)23x-2x+4.2=77.7(393)74x-70x+3.5=8.7(394)71x-63x+0.6=3(395)88x-73x+1.4=13.4(396)20x-6x+3.3=53.7(397)5.7x-5x-0.5=7.2(398)5.9x-0.5x-0.5=15.7(399)9.4x-5.4x-4.8=27.2(400)4.7x-2.9x-2=32.2(401)4.8x-3.4x-0.6=17.6(402)8.2x-7.6x-0.6=5.4(403)3x-0.6x-1.2=25.2(404)6.3x-6x-0.4=1.1(405)0.5x-0.3x-0.4=12.8(406)68x-50x-3.4=7.4(407)85x-77x-3.8=2.6(408)27x-3x-3.3=49.5(409)93x-4x-3=41.5(410)28x-11x-4.2=40(411)87x-20x-2.8=24(412)12x-5x-0.8=57.3(413)81x-49x-1.4=14.6(414)70x-49x-3.7=6.8(415)2x+7×21=307(416)3x+15×2=72(417)14x+10×8=164(418)13x+31×5=311(419)2x+16×8=236(420)10x+36×2=102(421)4x+2×65=226(422)22x+20×6=274(423)8x+30×4=152(424)27x-5×7=46(425)20x-30×2=100(426)22x-2×5=166(427)2x-2×70=38(428)4x-3×48=24(429)20x-5×10=130(430)5x-3×34=43(431)2x-3×41=19(432)17x-3×14=60(433)1.5x+3.4×2=20.3(434)0.5x+0.8×9=22.7(435)3x+1.6×5=17(436)0.6x+1.2×9=12(437)1.6x+4.4×3=29.2(438)0.2x+4.8×4=28.2(439)2.3x+0.5×33=28(440)2.4x+0.2×6=15.6(441)3.9x+0.7×14=29.3(442)43x+6×0.2=18.4(443)6x+23×0.5=22.3(444)49x+34×0.4=28.3(445)16x+10×1.4=30(446)16x+26×0.6=30(447)3x+9×0.3=5.4(448)40x+13×1.1=30.3(449)4x+5×2.9=23.7(450)31x+8×1.7=19.8(451)4.4x-2.8×2=3.2(452)0.3x-0.2×36=5.4(453)1.3x-1×7=6(454)0.5x-0.4×31=2.1(455)3.4x-0.2×6=5.6(456)3.9x-0.2×47=6.2(457)0.4x-0.2×3=15.4(458)0.7x-1×13=5.9(459)2.9x-0.2×6=7.5(460)10x-12×0.3=8.4(461)5x-27×0.4=4.7(462)4x-3×0.8=13.2(463)12x-2×1.8=14.4(464)4x-3×1.1=12.3(465)10x-5×2.6=3(466)14x-42×0.2=1.4(467)4x-2×4.9=7.4(468)7x-19×0.6=6.1(469)6(4x+7)=114(470)6(x+4)=72(471)2(7x+49)=196(472)2(4x+14)=180(473)2(2x+13)=194(474)3(5x+5)=135(475)2(16x+11)=118(476)3(2x+11)=129(477)6(3x+4)=168(478)11(2x-15)=143(479)2(3x-42)=30(480)13(6x-19)=143(481)3(6x-46)=96(482)3(27x-24)=171(483)3(2x-16)=102(484)13(5x-7)=169(485)4(2x-45)=180(486)2(4x-41)=134(487)4(2.7x+2.6)=32(488)2(0.2x+1.9)=20.2(489)16(0.3x+1.7)=41.6(490)2(1.9x+9.2)=29.8(491)2(0.3x+2.1)=33(492)2(8.6x+4.4)=43.2(493)2(1.4x+6.8)=27.6(494)2(0.9x+3.3)=22.8(495)7(0.2x+0.3)=9.1(496)8(0.5x-8.3)=29.6(497)4(1.3x-8.5)=12.8(498)7(4x-6.2)=12.6(499)7(0.5x-9)=31.5(500)8(0.3x-3.5)=41.6(501)6(1.7x-6.5)=42.6(502)7(1.8x-5.4)=12.6(503)5(0.5x-4.9)=48(504)8(2.8x-1.8)=30.4(505)(x+39)÷5=12(506)(5x+20)÷10=8(507)(2x+6)÷22=2(508)(x+36)÷2=28(509)(18x+30)÷26=6(510)(12x+30)÷22=9(511)(6x+10)÷8=23(512)(10x+40)÷30=5(513)(6x+12)÷21=8(514)(4x-32)÷9=8(515)(8x-18)÷6=33(516)(3x-4)÷37=2(517)(7x-18)÷8=17(518)(10x-14)÷22=3(519)(13x-20)÷27=6(520)(14x-44)÷26=1(521)(17x-49)÷2=52(522)(14x-36)÷8=6(523)(1.8x+4.2)÷3=11.6(524)(2.8x+3.9)÷3=15.3(525)(2.4x+1.2)÷2=7.8(526)(3.1x+7.8)÷10=4.5(527)(7.6x+1.8)÷10=5.5(528)(1.8x+9)÷22=1.8(529)(2.7x+7.6)÷37=1.3(530)(4.9x+9.1)÷6=10.5(531)(4.7x+9.7)÷2=40.1(532)(3.5x-2.5)÷15=1.7(533)(3.2x-8.3)÷11=3.9(534)(6.4x-7.6)÷4=17.3(535)(3.6x-1.2)÷10=4.2(536)(5.8x-3.2)÷2=15.8(537)(8.1x-3.8)÷8=5.6(538)(4.8x-2.8)÷4=2.9(539)(3.1x-7.6)÷13=1.8(540)(8.5x-1.5)÷23=4参考答案(1)x=99(2)x=24(3)x=32(4)x=55(5)x=22(6)x=41(7)x=81(8)x=65(9)x=67(10)x=76(11)x=76(12)x=95(13)x=90(14)x=96(15)x=70(16)x=56(17)x=94(18)x=94(19)x=2.2(20)x=5.8(21)x=7.8(22)x=8.8(23)x=4.6(24)x=1.4(25)x=9.6(26)x=8.5(27)x=2.5(28)x=5(29)x=9.1(30)x=7.2(31)x=6.1(32)x=9.1(33)x=5.4(34)x=6.4(35)x=3.1(36)x=3.3(37)x=64(38)x=15(39)x=32(40)x=56(41)x=87(42)x=25(43)x=75(44)x=33(45)x=11(46)x=26(47)x=45(48)x=26(49)x=21(50)x=5(51)x=25(52)x=6(53)x=43(54)x=83(55)x=3.9(56)x=6.3(57)x=1.2(58)x=1.9(59)x=5.4(60)x=9.7(61)x=1.6(62)x=5.1(63)x=5(64)x=7.4(65)x=0.3(66)x=2.4(67)x=0.3(68)x=6.2(69)x=1(70)x=2(71)x=1.2(72)x=2.4(73)x=19(74)x=11(75)x=13(76)x=11(77)x=25(78)x=24(79)x=6(80)x=48(81)x=11(82)x=13(83)x=9(84)x=3(85)x=3(86)x=99(87)x=16(88)x=46(89)x=14(90)x=64(91)x=1.3(92)x=0.2(93)x=0.4(94)x=1.6(95)x=0.2(96)x=5.4(97)x=4.1(98)x=0.6(99)x=6(100)x=17(101)x=9(102)x=4(103)x=7(104)x=3(105)x=6(106)x=92(107)x=3(108)x=9(109)x=11(110)x=19(111)x=20(112)x=5(113)x=19(114)x=10(115)x=2(116)x=2(117)x=4(118)x=160(119)x=72(120)x=135(121)x=102(122)x=144(123)x=100(124)x=124(125)x=96(126)x=45(127)x=12(128)x=10.8(129)x=9(130)x=8.4(131)x=8.6(132)x=12.2(133)x=1.2(134)x=18(135)x=14(136)x=13(137)x=44(138)x=17(139)x=4(140)x=44(141)x=3(142)x=7(143)x=2(144)x=8(145)x=3(146)x=51(147)x=16(148)x=25(149)x=82(150)x=10(151)x=3(152)x=22(153)x=7(154)x=2.9(155)x=0.5(156)x=0.3(157)x=2.7(158)x=0.4(159)x=0.4(160)x=6.2(161)x=0.2(162)x=0.3(163)x=27(164)x=17(165)x=49(166)x=4(167)x=9(168)x=22(169)x=15(170)x=15(171)x=19(172)x=0.6(173)x=0.4(174)x=6.3(175)x=2.5(176)x=4.6(177)x=2.7(178)x=1.4(179)x=0.3(180)x=1.2(181)x=53(182)x=2(183)x=3(184)x=9(185)x=88(186)x=26(187)x=3(188)x=8(189)x=11(190)x=2(191)x=8(192)x=3(193)x=14(194)x=34(195)x=17(196)x=45(197)x=8(198)x=66(199)x=5(200)x=5(201)x=2(202)x=6(203)x=36(204)x=11(205)x=2(206)x=3(207)x=4(208)x=11(209)x=4(210)x=15(211)x=2(212)x=2(213)x=13(214)x=3(215)x=5(216)x=19(217)x=8(218)x=1(219)x=0.5(220)x=0.8(221)x=7.6(222)x=6.1(223)x=2.5(224)x=0.3(225)x=5.3(226)x=27(227)x=4(228)x=2(229)x=15(230)x=6(231)x=3(232)x=14(233)x=36(234)x=4(235)x=1.1(236)x=6.6(237)x=2(238)x=2(239)x=1.6(240)x=7.7(241)x=0.7(242)x=2.1(243)x=0.5(244)x=9(245)x=3(246)x=4(247)x=6(248)x=8(249)x=25(250)x=2(251)x=4(252)x=13(253)x=3(254)x=3(255)x=42(256)x=16(257)x=4(258)x=9(259)x=7(260)x=44(261)x=66(262)x=1.3(263)x=0.6(264)x=3.5(265)x=0.2(266)x=1.1(267)x=0.6(268)x=0.7(269)x=2.2(270)x=0.8(271)x=11(272)x=18(273)x=58(274)x=26(275)x=13(276)x=7(277)x=7(278)x=21(279)x=11(280)x=16(281)x=21(282)x=5(283)x=9(284)x=8(285)x=13(286)x=6(287)x=9(288)x=3(289)x=21(290)x=4(291)x=13(292)x=28(293)x=7(294)x=37(295)x=2(296)x=27(297)x=13(298)x=65(299)x=3(300)x=6(301)x=22(302)x=24(303)x=6(304)x=9(305)x=10(306)x=7(307)x=7(308)x=10(309)x=11(310)x=2(311)x=39(312)x=2(313)x=12(314)x=5(315)x=11(316)x=4(317)x=14(318)x=2(319)x=5(320)x=3(321)x=37(322)x=12(323)x=27(324)x=5(325)x=32(326)x=7(327)x=4(328)x=7(329)x=5(330)x=8(331)x=13(332)x=16(333)x=9(334)x=7(335)x=8(336)x=23(337)x=6(338)x=22(339)x=10(340)x=7(341)x=18(342)x=4(343)x=2(344)x=7(345)x=22(346)x=8(347)x=11(348)x=16(349)x=6(350)x=9(351)x=8(352)x=0.2(353)x=0.3(354)x=1.3(355)x=1.6(356)x=0.8(357)x=1.6(358)x=1.2(359)x=1.1(360)x=2.6(361)x=6(362)x=24(363)x=57(364)x=5(365)x=5(366)x=5(367)x=7(368)x=11(369)x=27(370)x=1.3(371)x=4.8(372)x=1(373)x=0.5(374)x=1.1(375)x=1.4(376)x=1.4(377)x=1.5(378)x=1.8(379)x=6(380)x=8(381)x=8(382)x=21(383)x=14(384)x=6(385)x=10(386)x=12(387)x=13(388)x=1.9(389)x=0.9(390)x=1.8(391)x=3(392)x