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+57=76(2)x+18=72(3)x+8=85(4)x+52=149(5)x+64=157(6)x+55=68(7)x+29=68(8)x+5=88(9)x+15=29(10)x-72=22(11)x-16=49(12)x-2=75(13)x-14=70(14)x-13=85(15)x-50=44(16)x-11=62(17)x-7=75(18)x-57=17(19)x+1.6=9(20)x+0.4=5(21)x+0.4=2.8(22)x+6.6=14.9(23)x+2.2=2.4(24)x+9.9=12.8(25)x+7.2=15.4(26)x+0.9=2.8(27)x+3.6=11.6(28)x-0.2=7.9(29)x-6.4=1.9(30)x-0.5=7.1(31)x-1.2=8.6(32)x-8.4=1.2(33)x-2.7=4.5(34)x-2.1=3.6(35)x-3.4=1.1(36)x-2=2.1(37)69+x=141(38)6+x=81(39)59+x=114(40)35+x=116(41)92+x=141(42)73+x=154(43)70+x=97(44)32+x=34(45)48+x=124(46)92-x=23(47)88-x=30(48)93-x=32(49)76-x=58(50)97-x=33(51)35-x=25(52)82-x=61(53)85-x=12(54)54-x=46(55)4.7+x=12.5(56)3.1+x=5.7(57)3.2+x=4.5(58)4.8+x=8.5(59)7.3+x=15.1(60)1.4+x=7.5(61)2.4+x=5.6(62)8.1+x=15.2(63)9.9+x=18.3(64)6.5-x=6(65)3.7-x=2.1(66)9.2-x=6.6(67)6.2-x=1.7(68)5.4-x=4.3(69)7.9-x=4.6(70)2-x=1.3(71)2.1-x=1.2(72)7.3-x=4.2(73)11x=121(74)18x=180(75)4x=84(76)3x=51(77)55x=165(78)17x=68(79)3x=153(80)4x=60(81)2x=40(82)0.9x=5.4(83)1x=12(84)1.5x=18(85)0.5x=2(86)0.3x=12.6(87)0.5x=14.5(88)0.5x=7(89)3.1x=6.2(90)1.8x=18(91)7x=17.5(92)6x=4.8(93)80x=16(94)2x=7.4(95)12x=9.6(96)28x=5.6(97)2x=3.6(98)3x=8.7(99)6x=1.2(100)112÷x=2(101)155÷x=31(102)132÷x=4(103)85÷x=5(104)80÷x=10(105)76÷x=4(106)155÷x=5(107)94÷x=2(108)95÷x=19(109)1.2÷x=0.4(110)16.8÷x=0.2(111)12÷x=2(112)3.6÷x=1.2(113)6.9÷x=2.3(114)16.5÷x=0.5(115)11.2÷x=0.8(116)9÷x=0.9(117)13.2÷x=1.2(118)x÷9=18(119)x÷5=35(120)x÷4=34(121)x÷7=8(122)x÷23=3(123)x÷39=3(124)x÷5=11(125)x÷86=2(126)x÷8=21(127)x÷33=0.6(128)x÷64=0.2(129)x÷6=1.9(130)x÷6=1.8(131)x÷4=4.1(132)x÷7=2.7(133)x÷18=0.4(134)x÷22=0.9(135)x÷3=4(136)5x+42=157(137)13x+37=167(138)73x+27=173(139)5x+23=173(140)16x+28=108(141)8x+48=120(142)2x+54=78(143)9x+40=76(144)2x+14=154(145)14x-16=54(146)69x-21=117(147)2x-33=99(148)3x-25=95(149)3x-54=117(150)6x-49=137(151)46x-35=149(152)2x-33=53(153)43x-24=62(154)15x+3.7=9.7(155)2x+1.4=7.6(156)8x+4.7=19.9(157)6x+2.8=14.2(158)62x+4.5=16.9(159)4x+4.4=16.8(160)33x+5.6=25.4(161)12x+3.4=13(162)93x+5.9=24.5(163)3.5x+4.9=11.9(164)0.3x+5.7=24.6(165)0.2x+2.4=10.8(166)1.8x+3.1=17.5(167)1.1x+3.3=7.7(168)0.5x+4.4=5.9(169)0.2x+3=4.4(170)4x+2.4=14.4(171)2.4x+2.4=12(172)2x-5.8=12.8(173)2x-3.5=11.5(174)5x-5.1=3.9(175)3x-1.5=13.8(176)20x-4.1=5.9(177)3x-1.4=10.9(178)28x-2.7=11.3(179)2x-3=7(180)3x-2=11.8(181)1x-2.4=3.6(182)0.4x-5.9=8.1(183)1x-1.3=1.7(184)2.4x-2.7=14.1(185)0.7x-1.7=8.8(186)1.4x-5.4=1.6(187)2.2x-3=12.4(188)5.6x-3.7=7.5(189)0.4x-2.8=8.8(190)86+22x=240(191)44+5x=54(192)158+2x=162(193)103+16x=247(194)101+2x=131(195)170+39x=365(196)140+16x=332(197)126+2x=188(198)11+26x=141(199)172-39x=16(200)145-6x=67(201)192-5x=82(202)145-2x=17(203)147-6x=63(204)161-2x=59(205)163-17x=112(206)123-25x=23(207)186-64x=58(208)3.7+4.2x=16.3(209)1.5+0.2x=15.5(210)2.8+2.8x=14(211)10.1+0.7x=24.8(212)6.3+6.4x=19.1(213)10.9+1.1x=16.4(214)18.6+0.4x=36.2(215)18.4+0.7x=24(216)8.6+4.6x=17.8(217)3.6+93x=22.2(218)11.4+2x=15.6(219)18.7+6x=34.3(220)13.6+2x=21.2(221)17.8+6x=22(222)4.4+5x=22.9(223)5.1+40x=21.1(224)3.6+44x=12.4(225)16.2+25x=21.2(226)10.9-0.4x=3.7(227)17.4-7.8x=1.8(228)16-0.3x=12.7(229)9.5-0.3x=3.5(230)16.6-0.5x=10.1(231)19.7-1.3x=8(232)17.3-0.7x=6.8(233)15.4-0.4x=14.6(234)11.5-0.7x=8.7(235)19.4-8x=11.4(236)15.4-7x=2.8(237)10.2-16x=3.8(238)19-19x=15.2(239)6.3-2x=5.1(240)13.4-14x=2.2(241)15.2-10x=3.2(242)16.8-5x=8.8(243)17.8-5x=13.8(244)29x÷87=2(245)4x÷3=16(246)8x÷24=3(247)2x÷3=14(248)40x÷60=2(249)28x÷8=21(250)2x÷11=10(251)44x÷4=22(252)3x÷14=12(253)1.4x÷21=0.2(254)0.4x÷3=2.8(255)0.2x÷60=0.3(256)1.5x÷60=0.2(257)0.4x÷3=4(258)9x÷15=1.2(259)1.4x÷7=1.8(260)3x÷20=0.6(261)0.7x÷2=3.5(262)8x÷14=0.4(263)10x÷6=2.5(264)54x÷3=3.6(265)4x÷20=0.3(266)54x÷18=0.9(267)15x÷18=1(268)3x÷15=0.4(269)5x÷18=1(270)21x÷14=0.6(271)16x+17x=165(272)5x+3x=216(273)12x+5x=102(274)3x+7x=140(275)2x+19x=126(276)12x+5x=170(277)2x+13x=45(278)11x+7x=324(279)2x+3x=120(280)15x-11x=52(281)7x-3x=24(282)13x-7x=36(283)11x-8x=27(284)6x-4x=60(285)11x-9x=34(286)13x-10x=45(287)19x-17x=20(288)13x-11x=30(289)0.5x+2.6x=68.2(290)0.8x+2.1x=31.9(291)5.4x+4.9x=154.5(292)1.8x+1.9x=144.3(293)0.6x+2.4x=63(294)2.4x+3.9x=69.3(295)3x+9.5x=25(296)1x+0.3x=91(297)1.6x+1.3x=55.1(298)6.2x-3.4x=30.8(299)9.1x-3.9x=36.4(300)8.9x-3.4x=60.5(301)4.4x-0.8x=50.4(302)6.1x-1.2x=73.5(303)9x-7.4x=4.8(304)9.7x-6.8x=29(305)1.3x-0.3x=65(306)1.6x-1.4x=5.4(307)14x+2x+36=116(308)9x+7x+27=331(309)16x+13x+22=138(310)19x+2x+17=122(311)18x+11x+2=147(312)10x+6x+12=332(313)9x+6x+45=105(314)8x+17x+18=118(315)9x+11x+31=331(316)4x+7x-15=106(317)10x+15x-21=154(318)15x+5x-16=64(319)14x+3x-42=43(320)16x+17x-32=199(321)9x+2x-29=81(322)13x+6x-32=177(323)6x+12x-3=51(324)13x+18x-36=274(325)15x-2x+31=187(326)16x-2x+26=124(327)13x-4x+14=113(328)19x-11x+30=46(329)16x-5x+4=125(330)15x-9x+16=64(331)17x-2x+5=110(332)11x-6x+17=62(333)9x-2x+16=156(334)10x-5x-10=65(335)17x-8x-18=36(336)16x-10x-23=25(337)9x-4x-36=74(338)16x-5x-22=99(339)16x-7x-39=33(340)9x-3x-9=69(341)13x-4x-34=74(342)17x-6x-8=113(343)7.4x+1.1x+1=18(344)0.4x+1.1x+2.1=116.1(345)9.3x+6.9x+2.5=148.3(346)3.8x+3.3x+4.4=32.8(347)9.9x+1x+0.2=98.3(348)3x+5.6x+1.8=44.8(349)9.5x+1.2x+1.6=33.7(350)4.6x+3.4x+2.1=34.1(351)3x+2.1x+4.5=91.2(352)24x+77x+3.1=104.1(353)12x+7x+4.3=125.9(354)40x+61x+3.9=135.2(355)10x+23x+1.7=14.9(356)14x+26x+0.4=84.4(357)18x+30x+0.7=53.5(358)40x+2x+3.3=15.9(359)57x+31x+1.3=80.5(360)41x+20x+4.8=71.9(361)6.5x+7.1x-2.3=160.9(362)5.9x+5.1x-3.9=161.1(363)0.8x+1x-1.4=101.2(364)5.8x+3.4x-3.1=88.9(365)3.7x+7.4x-1.1=65.5(366)7.6x+0.9x-3.1=64.9(367)0.5x+5.9x-2.6=10.2(368)5.8x+5.3x-0.7=110.3(369)2.2x+3.7x-1.5=28(370)40x+10x-2.5=7.5(371)4x+36x-1=7(372)5x+52x-3.1=93.8(373)21x+59x-0.9=95.1(374)9x+98x-3.9=60.3(375)20x+4x-4.1=17.5(376)71x+56x-2.3=23.1(377)27x+22x-0.7=33.6(378)15x+45x-1.9=46.1(379)1.2x-0.2x+1.1=24.1(380)2.5x-1.6x+0.9=28.8(381)1.2x-0.6x+2.2=41.2(382)7.3x-6.7x+2.2=10(383)1.8x-1.1x+1.1=36.1(384)3.9x-0.9x+4.9=64.9(385)4.2x-2.9x+4.6=18.9(386)6.1x-1x+2.7=38.4(387)6.3x-0.4x+4.8=69.7(388)68x-54x+2.9=5.7(389)68x-6x+3.4=65.4(390)91x-64x+0.3=21.9(391)96x-24x+3.5=75.5(392)27x-20x+2=6.2(393)56x-24x+3.2=28.8(394)19x-13x+0.9=21.9(395)57x-46x+3.3=18.7(396)52x-5x+0.4=19.2(397)7.3x-4.2x-0.4=24.4(398)4.1x-1.6x-3.5=34(399)7.8x-4.9x-0.5=28.5(400)9.8x-1.3x-1.2=75.3(401)3.6x-0.6x-4.4=1.6(402)2.2x-0.6x-4.9=35.1(403)2.3x-1x-3.2=12.4(404)3.8x-0.4x-0.2=78(405)6.9x-2.2x-3.4=29.5(406)93x-70x-1.9=5(407)78x-62x-1.8=14.2(408)29x-5x-1.4=8.2(409)47x-32x-1.4=21.1(410)36x-15x-3.8=23.5(411)14x-5x-1.1=36.7(412)86x-73x-4.6=9.7(413)26x-3x-2.5=36.6(414)29x-20x-0.8=28(415)3x+6×9=69(416)11x+19×4=241(417)13x+20×2=105(418)19x+15×10=302(419)19x+9×11=213(420)2x+4×5=198(421)4x+4×13=188(422)3x+86×2=253(423)6x+8×24=330(424)2x-9×13=49(425)22x-3×40=78(426)8x-8×10=56(427)2x-6×9=38(428)24x-2×47=74(429)18x-22×3=24(430)5x-9×5=145(431)8x-31×4=60(432)22x-10×4=114(433)1.6x+4.3×2=27.8(434)0.4x+1×5=18.2(435)0.7x+0.3×37=18.8(436)0.4x+0.2×18=23.2(437)0.4x+0.4×2=8.4(438)1.7x+0.8×21=33.8(439)0.4x+3.3×6=22.6(440)2.5x+0.5×8=24(441)1.9x+1.3×15=27.1(442)18x+37×0.3=21.9(443)14x+6×2.5=30.4(444)7x+14×0.4=21(445)32x+4×2.1=27.6(446)26x+22×0.6=23.6(447)6x+6×3.1=25.8(448)7x+42×0.4=28.7(449)6x+39×0.3=14.7(450)34x+9×0.8=17.4(451)4.2x-1.1×4=8.2(452)1.5x-0.6×2=1.8(453)2.3x-1.9×6=2.4(454)0.5x-3.6×3=4.2(455)0.3x-1.5×5=7.2(456)2.3x-1.8×4=2(457)3.1x-0.5×11=3.8(458)2.2x-3.3×3=7.7(459)4.6x-2.1×3=7.5(460)4x-15×0.6=1(461)4x-7×1=12.2(462)3x-7×0.4=1.4(463)5x-47×0.3=4.9(464)5x-2×4.3=11.4(465)4x-24×0.5=6.8(466)11x-2×1.5=3.6(467)10x-12×1.1=3.8(468)10x-4×0.3=14.8(469)6(x+18)=120(470)3(10x+25)=165(471)13(x+10)=156(472)4(13x+14)=160(473)5(4x+13)=165(474)7(x+14)=161(475)4(12x+2)=200(476)2(19x+27)=130(477)24(x+4)=168(478)2(22x-28)=76(479)7(x-8)=112(480)5(7x-23)=95(481)4(7x-34)=144(482)12(x-32)=144(483)4(2x-24)=120(484)11(11x-48)=198(485)6(x-26)=84(486)6(x-4)=78(487)2(1.7x+4.6)=50(488)4(0.9x+5.9)=48.8(489)2(4.3x+3.9)=42.2(490)3(1.9x+6)=35.1(491)4(0.3x+0.6)=32.4(492)3(3.2x+6.3)=38.1(493)3(2.1x+5.3)=34.8(494)2(0.4x+1.8)=29.2(495)3(0.6x+7.7)=32.1(496)2(5.3x-4.9)=11.4(497)2(3.9x-2.7)=41.4(498)2(1.1x-7)=21.2(499)9(4.6x-4.3)=44.1(500)12(0.7x-9.8)=25.2(501)13(1.4x-7.4)=31.2(502)4(0.3x-1.2)=46.8(503)9(1.3x-3.6)=14.4(504)12(1.5x-5)=12(505)(12x+30)÷3=62(506)(9x+11)÷4=14(507)(18x+16)÷14=5(508)(12x+24)÷42=6(509)(13x+8)÷2=69(510)(7x+2)÷29=2(511)(3x+4)÷8=5(512)(10x+28)÷2=94(513)(4x+24)÷48=1(514)(3x-36)÷5=3(515)(9x-24)÷6=26(516)(6x-24)÷3=18(517)(9x-6)÷3=52(518)(14x-38)÷4=36(519)(13x-14)÷12=1(520)(5x-7)÷43=1(521)(7x-21)÷14=6(522)(18x-49)÷41=1(523)(0.9x+5.1)÷3=5.9(524)(3.7x+6.5)÷6=9.1(525)(7.2x+9.6)÷6=16(526)(2x+6.3)÷7=2.9(527)(4.4x+7.2)÷2=43.2(528)(7.5x+1)÷4=11.5(529)(1.1x+6.3)÷20=0.7(530)(7.9x+1.4)÷5=14.5(531)(1.9x+2)÷15=1.4(532)(7.9x-4.7)÷19=1(533)(1.8x-3)÷4=4.2(534)(3.3x-7.7)÷5=4.4(535)(0.8x-1.2)÷7=2(536)(5.8x-1.7)÷15=5.3(537)(0.9x-8.1)÷3=1.5(538)(4.6x-7.7)÷25=1.9(539)(3.7x-6.1)÷8=7.1(540)(0.6x-1.8)÷6=1参考答案(1)x=19(2)x=54(3)x=77(4)x=97(5)x=93(6)x=13(7)x=39(8)x=83(9)x=14(10)x=94(11)x=65(12)x=77(13)x=84(14)x=98(15)x=94(16)x=73(17)x=82(18)x=74(19)x=7.4(20)x=4.6(21)x=2.4(22)x=8.3(23)x=0.2(24)x=2.9(25)x=8.2(26)x=1.9(27)x=8(28)x=8.1(29)x=8.3(30)x=7.6(31)x=9.8(32)x=9.6(33)x=7.2(34)x=5.7(35)x=4.5(36)x=4.1(37)x=72(38)x=75(39)x=55(40)x=81(41)x=49(42)x=81(43)x=27(44)x=2(45)x=76(46)x=69(47)x=58(48)x=61(49)x=18(50)x=64(51)x=10(52)x=21(53)x=73(54)x=8(55)x=7.8(56)x=2.6(57)x=1.3(58)x=3.7(59)x=7.8(60)x=6.1(61)x=3.2(62)x=7.1(63)x=8.4(64)x=0.5(65)x=1.6(66)x=2.6(67)x=4.5(68)x=1.1(69)x=3.3(70)x=0.7(71)x=0.9(72)x=3.1(73)x=11(74)x=10(75)x=21(76)x=17(77)x=3(78)x=4(79)x=51(80)x=15(81)x=20(82)x=6(83)x=12(84)x=12(85)x=4(86)x=42(87)x=29(88)x=14(89)x=2(90)x=10(91)x=2.5(92)x=0.8(93)x=0.2(94)x=3.7(95)x=0.8(96)x=0.2(97)x=1.8(98)x=2.9(99)x=0.2(100)x=56(101)x=5(102)x=33(103)x=17(104)x=8(105)x=19(106)x=31(107)x=47(108)x=5(109)x=3(110)x=84(111)x=6(112)x=3(113)x=3(114)x=33(115)x=14(116)x=10(117)x=11(118)x=162(119)x=175(120)x=136(121)x=56(122)x=69(123)x=117(124)x=55(125)x=172(126)x=168(127)x=19.8(128)x=12.8(129)x=11.4(130)x=10.8(131)x=16.4(132)x=18.9(133)x=7.2(134)x=19.8(135)x=12(136)x=23(137)x=10(138)x=2(139)x=30(140)x=5(141)x=9(142)x=12(143)x=4(144)x=70(145)x=5(146)x=2(147)x=66(148)x=40(149)x=57(150)x=31(151)x=4(152)x=43(153)x=2(154)x=0.4(155)x=3.1(156)x=1.9(157)x=1.9(158)x=0.2(159)x=3.1(160)x=0.6(161)x=0.8(162)x=0.2(163)x=2(164)x=63(165)x=42(166)x=8(167)x=4(168)x=3(169)x=7(170)x=3(171)x=4(172)x=9.3(173)x=7.5(174)x=1.8(175)x=5.1(176)x=0.5(177)x=4.1(178)x=0.5(179)x=5(180)x=4.6(181)x=6(182)x=35(183)x=3(184)x=7(185)x=15(186)x=5(187)x=7(188)x=2(189)x=29(190)x=7(191)x=2(192)x=2(193)x=9(194)x=15(195)x=5(196)x=12(197)x=31(198)x=5(199)x=4(200)x=13(201)x=22(202)x=64(203)x=14(204)x=51(205)x=3(206)x=4(207)x=2(208)x=3(209)x=70(210)x=4(211)x=21(212)x=2(213)x=5(214)x=44(215)x=8(216)x=2(217)x=0.2(218)x=2.1(219)x=2.6(220)x=3.8(221)x=0.7(222)x=3.7(223)x=0.4(224)x=0.2(225)x=0.2(226)x=18(227)x=2(228)x=11(229)x=20(230)x=13(231)x=9(232)x=15(233)x=2(234)x=4(235)x=1(236)x=1.8(237)x=0.4(238)x=0.2(239)x=0.6(240)x=0.8(241)x=1.2(242)x=1.6(243)x=0.8(244)x=6(245)x=12(246)x=9(247)x=21(248)x=3(249)x=6(250)x=55(251)x=2(252)x=56(253)x=3(254)x=21(255)x=90(256)x=8(257)x=30(258)x=2(259)x=9(260)x=4(261)x=10(262)x=0.7(263)x=1.5(264)x=0.2(265)x=1.5(266)x=0.3(267)x=1.2(268)x=2(269)x=3.6(270)x=0.4(271)x=5(272)x=27(273)x=6(274)x=14(275)x=6(276)x=10(277)x=3(278)x=18(279)x=24(280)x=13(281)x=6(282)x=6(283)x=9(284)x=30(285)x=17(286)x=15(287)x=10(288)x=15(289)x=22(290)x=11(291)x=15(292)x=39(293)x=21(294)x=11(295)x=2(296)x=70(297)x=19(298)x=11(299)x=7(300)x=11(301)x=14(302)x=15(303)x=3(304)x=10(305)x=65(306)x=27(307)x=5(308)x=19(309)x=4(310)x=5(311)x=5(312)x=20(313)x=4(314)x=4(315)x=15(316)x=11(317)x=7(318)x=4(319)x=5(320)x=7(321)x=10(322)x=11(323)x=3(324)x=10(325)x=12(326)x=7(327)x=11(328)x=2(329)x=11(330)x=8(331)x=7(332)x=9(333)x=20(334)x=15(335)x=6(336)x=8(337)x=22(338)x=11(339)x=8(340)x=13(341)x=12(342)x=11(343)x=2(344)x=76(345)x=9(346)x=4(347)x=9(348)x=5(349)x=3(350)x=4(351)x=17(352)x=1(353)x=6.4(354)x=1.3(355)x=0.4(356)x=2.1(357)x=1.1(358)x=0.3(359)x=0.9(360)x=1.1(361)x=12(362)x=15(363)x=57(364)x=10(365)x=6(366)x=8(367)x=2(368)x=10(369)x=5(370)x=0.2(371)x=0.2(372)x=1.7(373)x=1.2(374)x=0.6(375)x=0.9(376)x=0.2(377)x=0.7(378)x=0.8(379)x=23(380)x=31(381)x=65(382)x=13(383)x=50(384)x=20(385)x=11(386)x=7(387)x=11(388)x=0.2(389)x=1(390)x=0.8(391)x=1(39