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+37=136(2)x+44=105(3)x+38=83(4)x+66=81(5)x+93=131(6)x+59=99(7)x+30=104(8)x+58=157(9)x+89=94(10)x-48=25(11)x-5=16(12)x-50=24(13)x-13=58(14)x-48=45(15)x-25=62(16)x-84=10(17)x-85=12(18)x-61=16(19)x+3.3=12(20)x+6.3=12(21)x+2.6=10.5(22)x+3.5=12.5(23)x+5.5=11.5(24)x+7.3=11.2(25)x+1.6=11.2(26)x+6.6=11(27)x+7.1=11(28)x-6.5=1.4(29)x-4.2=3.8(30)x-2.3=3(31)x-0.5=3.5(32)x-1=4.3(33)x-4.1=1.3(34)x-6.1=3.4(35)x-7.9=1.3(36)x-4.6=1.9(37)19+x=101(38)78+x=96(39)26+x=118(40)16+x=75(41)61+x=138(42)19+x=34(43)59+x=150(44)72+x=89(45)68+x=124(46)48-x=30(47)31-x=24(48)99-x=59(49)39-x=18(50)90-x=10(51)65-x=59(52)55-x=16(53)68-x=25(54)46-x=35(55)3.2+x=4.1(56)1.1+x=2.5(57)8.8+x=9.8(58)8.7+x=11(59)1.2+x=3.2(60)9+x=10.3(61)4.5+x=8.6(62)9.4+x=15.3(63)1.4+x=4.1(64)6.4-x=3(65)3.7-x=2.3(66)4-x=1(67)4.8-x=2(68)9.1-x=5.3(69)5.8-x=2.5(70)8.5-x=2.2(71)7.6-x=5.8(72)9.5-x=2.5(73)12x=24(74)12x=48(75)14x=168(76)5x=65(77)9x=90(78)2x=10(79)2x=24(80)4x=180(81)7x=70(82)1.5x=13.5(83)0.2x=18.8(84)1.5x=10.5(85)0.2x=16.2(86)1.1x=12.1(87)0.3x=19.8(88)1.7x=8.5(89)3.8x=19(90)0.2x=8.8(91)8x=5.6(92)8x=16.8(93)8x=8(94)9x=8.1(95)4x=13.2(96)8x=8.8(97)52x=10.4(98)2x=17.2(99)81x=16.2(100)144÷x=12(101)130÷x=13(102)80÷x=20(103)112÷x=7(104)123÷x=41(105)112÷x=8(106)164÷x=4(107)64÷x=2(108)112÷x=4(109)9.8÷x=0.7(110)14.8÷x=0.2(111)5.6÷x=0.4(112)19÷x=1(113)16.8÷x=0.4(114)8÷x=0.2(115)6.3÷x=2.1(116)18.9÷x=2.7(117)9÷x=0.6(118)x÷13=13(119)x÷32=2(120)x÷31=4(121)x÷11=9(122)x÷4=29(123)x÷6=18(124)x÷45=3(125)x÷59=3(126)x÷3=9(127)x÷44=0.2(128)x÷14=1.2(129)x÷8=1.3(130)x÷10=1.8(131)x÷12=1.5(132)x÷4=1.3(133)x÷21=0.9(134)x÷43=0.4(135)x÷5=0.9(136)70x+35=175(137)38x+49=163(138)16x+46=206(139)60x+45=165(140)7x+54=68(141)6x+13=61(142)15x+10=70(143)17x+44=78(144)17x+31=82(145)19x-45=145(146)75x-26=124(147)11x-11=11(148)84x-35=133(149)17x-14=122(150)47x-14=127(151)2x-34=16(152)2x-40=156(153)2x-32=118(154)69x+4.6=18.4(155)9x+2=3.8(156)2x+5.5=10.5(157)35x+3.1=20.6(158)12x+3.1=15.1(159)12x+4.7=16.7(160)2x+3.9=20.5(161)30x+3.5=9.5(162)15x+3.6=12.6(163)0.2x+2=6(164)1x+2.7=12.7(165)0.7x+4.2=21.7(166)0.5x+3.1=7.1(167)0.5x+4.5=15.5(168)0.5x+1.2=2.2(169)0.2x+2.1=15.3(170)5.2x+3.2=18.8(171)2.3x+1.7=15.5(172)35x-1.9=15.6(173)2x-2=8.6(174)24x-3.9=10.5(175)9x-3.8=9.7(176)38x-2.8=8.6(177)6x-3.5=12.1(178)62x-1.6=10.8(179)7x-3.9=1.7(180)52x-2.3=8.1(181)0.3x-3.7=9.2(182)0.4x-4.9=1.5(183)0.4x-1.6=8.8(184)0.4x-4.5=4.3(185)0.8x-5.8=6.2(186)1.3x-2.9=10.1(187)1.1x-5.1=4.8(188)1.7x-2.7=12.6(189)1.1x-4.9=1.7(190)194+32x=258(191)58+2x=216(192)43+3x=127(193)49+5x=234(194)101+18x=245(195)187+5x=312(196)138+7x=334(197)147+7x=252(198)30+8x=214(199)53-5x=28(200)110-4x=70(201)190-7x=92(202)120-4x=96(203)179-6x=113(204)179-10x=29(205)21-2x=13(206)99-10x=29(207)156-13x=65(208)3+0.4x=14.2(209)17.7+1.8x=37.5(210)16.4+1.5x=35.9(211)3.6+0.6x=5.4(212)14.3+0.2x=20.7(213)19.9+0.3x=34.6(214)12.9+2x=20.9(215)10.7+0.3x=22.4(216)7.1+5x=22.1(217)18.5+23x=32.3(218)8.4+3x=12.3(219)4.5+5x=24.5(220)4.7+5x=20.2(221)5.3+15x=11.3(222)13+22x=28.4(223)11.1+2x=28.5(224)6.5+2x=18.1(225)18.2+12x=31.4(226)9.8-0.5x=1.3(227)18.5-0.6x=2.9(228)16.8-2.5x=6.8(229)11.4-2.7x=3.3(230)16.5-0.2x=3.7(231)12.4-1.5x=9.4(232)4.7-1.7x=1.3(233)10.3-2x=4.3(234)18.5-1.1x=14.1(235)14.9-42x=2.3(236)16.9-12x=6.1(237)19-36x=4.6(238)11.5-6x=6.1(239)14.4-5x=10.4(240)9.7-2x=6.9(241)13.8-4x=9(242)6.4-7x=1.5(243)12.5-5x=8.5(244)2x÷10=15(245)16x÷12=4(246)29x÷58=3(247)4x÷6=28(248)6x÷8=3(249)3x÷5=6(250)5x÷40=3(251)12x÷2=48(252)22x÷11=4(253)2.5x÷20=0.5(254)0.6x÷4=2.7(255)8.5x÷10=1.7(256)9.2x÷4=4.6(257)0.2x÷41=0.4(258)2.7x÷9=2.1(259)0.3x÷4=4.8(260)1.3x÷4=3.9(261)0.9x÷18=1(262)42x÷12=0.7(263)4x÷12=0.9(264)14x÷12=0.7(265)6x÷64=0.3(266)6x÷10=1.2(267)4x÷7=2.8(268)7x÷14=0.5(269)5x÷3=3(270)4x÷2=1.8(271)17x+10x=216(272)5x+2x=91(273)12x+3x=30(274)12x+6x=234(275)3x+7x=190(276)11x+12x=322(277)4x+14x=198(278)6x+2x=240(279)5x+12x=68(280)10x-5x=90(281)8x-2x=126(282)7x-3x=104(283)17x-3x=112(284)17x-4x=26(285)9x-3x=66(286)12x-4x=64(287)13x-6x=56(288)13x-9x=28(289)0.3x+1.6x=96.9(290)1.1x+6.8x=39.5(291)6.8x+8x=148(292)2.1x+3x=147.9(293)5.6x+1.3x=13.8(294)2.3x+1x=66(295)1.3x+1.1x=64.8(296)6.3x+4.3x=21.2(297)7.4x+1.5x=106.8(298)7.1x-4.3x=14(299)7.7x-5.6x=21(300)8.1x-1.6x=45.5(301)1.8x-0.5x=16.9(302)0.8x-0.3x=27.5(303)1.4x-0.4x=70(304)6.8x-2.6x=21(305)8.3x-0.4x=79(306)2.6x-0.2x=64.8(307)11x+9x+17=357(308)7x+6x+23=296(309)11x+3x+26=124(310)15x+12x+14=95(311)18x+3x+31=220(312)5x+12x+47=166(313)7x+10x+14=99(314)6x+2x+28=268(315)4x+5x+5=104(316)18x+4x-45=87(317)16x+14x-29=91(318)4x+8x-3=141(319)4x+8x-3=33(320)15x+11x-18=320(321)9x+19x-36=188(322)7x+10x-32=19(323)2x+7x-46=170(324)3x+5x-40=248(325)18x-14x+49=61(326)12x-5x+14=119(327)5x-3x+26=100(328)12x-4x+10=138(329)14x-6x+2=66(330)11x-4x+14=119(331)19x-13x+24=72(332)14x-9x+10=75(333)8x-2x+36=138(334)8x-2x-10=104(335)13x-6x-30=68(336)5x-2x-38=58(337)17x-4x-14=103(338)9x-5x-13=67(339)5x-2x-3=51(340)5x-2x-8=34(341)15x-7x-33=39(342)8x-2x-45=75(343)1.3x+2.3x+1.7=77.3(344)4.2x+6.3x+3.8=87.8(345)2.4x+7.1x+0.5=124(346)2.8x+0.6x+3.2=78(347)0.4x+1.1x+1.9=12.4(348)5.6x+0.5x+1.5=86.9(349)4.1x+7.3x+0.6=23.4(350)9.6x+2.8x+1.2=125.2(351)2.5x+3x+1.7=51.2(352)36x+52x+4=92(353)7x+26x+1.7=97.4(354)62x+55x+4.9=51.7(355)35x+16x+2.3=78.8(356)33x+17x+3.6=13.6(357)29x+4x+3.7=79.6(358)11x+75x+4.5=47.5(359)50x+29x+1.6=135.9(360)11x+19x+2.8=8.8(361)6.4x+7.9x-1.3=41.6(362)2.8x+8.8x-2.9=101.5(363)5.6x+8x-3.6=132.4(364)2.9x+5.3x-0.5=106.1(365)4.1x+5.1x-3.9=42.1(366)0.3x+1.7x-3.4=82.6(367)0.8x+4x-4.5=86.7(368)2.8x+2.4x-3.9=178.1(369)4.3x+2x-4=33.8(370)59x+53x-1.8=155(371)88x+33x-2.6=45.8(372)31x+16x-3.3=39(373)28x+42x-4.1=23.9(374)9x+81x-3=105(375)14x+8x-3.4=38.4(376)5x+31x-4.8=49.2(377)22x+32x-1.8=9(378)68x+57x-3.1=21.9(379)1.5x-0.3x+3.8=59(380)2x-1x+1.6=28.6(381)6.1x-4.6x+4.6=18.1(382)4.9x-3.7x+1.5=19.5(383)6.2x-2.6x+1.2=40.8(384)4.7x-4.5x+1.4=2.4(385)4.2x-2.5x+0.3=12.2(386)4.6x-3x+0.4=24.4(387)9.3x-7.5x+4.8=15.6(388)50x-20x+3.7=18.7(389)15x-7x+4.5=44.5(390)46x-3x+2.3=66.8(391)14x-10x+4.4=28.8(392)82x-4x+0.4=78.4(393)74x-61x+1.6=12(394)71x-5x+4.7=97.1(395)83x-45x+3.6=18.8(396)64x-16x+3.8=75.8(397)3.4x-1.6x-1.1=7.9(398)7.8x-4.5x-2.4=33.9(399)8.7x-2.2x-3.5=35.5(400)7x-0.8x-4.9=13.7(401)6.1x-3.1x-0.7=38.3(402)9.6x-5.1x-3.5=10(403)8.2x-1.3x-3.2=65.8(404)3.9x-2.8x-1.2=12(405)4.2x-3.2x-1.1=10.9(406)96x-29x-1.2=39(407)85x-17x-1.6=39.2(408)24x-16x-4.7=11.3(409)57x-41x-4.4=10(410)38x-35x-4.6=2.6(411)96x-47x-1.1=33.2(412)47x-28x-3.9=18.9(413)64x-44x-2.1=21.9(414)24x-21x-3=6(415)4x+14×11=242(416)5x+4×19=166(417)2x+3×62=228(418)12x+5×4=116(419)5x+14×11=204(420)2x+31×6=328(421)12x+28×3=276(422)19x+4×10=173(423)27x+5×37=374(424)2x-7×5=91(425)20x-2×28=64(426)19x-8×5=55(427)21x-2×54=39(428)28x-8×17=60(429)11x-11×8=110(430)16x-16×4=16(431)2x-4×6=158(432)4x-3×20=36(433)1.6x+2×7=22(434)2.2x+2.4×6=25.4(435)0.2x+0.2×28=10.6(436)0.4x+2.3×3=25.7(437)1.1x+1.8×7=30.2(438)1.5x+0.5×22=27.5(439)1x+0.6×21=23.6(440)0.7x+1.6×2=18.6(441)1.6x+1.8×5=18.6(442)4x+2×3.1=13.8(443)23x+38×0.5=30.5(444)18x+11×0.5=23.5(445)3x+4×2.9=23.9(446)7x+17×0.3=17(447)3x+35×0.4=16.7(448)3x+7×2.1=28.8(449)7x+13×1.5=23(450)2x+27×0.6=19.4(451)1.3x-0.3×15=9.8(452)2x-0.2×23=15.4(453)3.2x-0.4×8=3.2(454)0.6x-0.3×19=13.5(455)0.5x-1.6×4=8.6(456)3.5x-0.2×28=1.4(457)0.4x-1.7×6=1.8(458)0.4x-2.2×2=14.8(459)1.1x-1.4×2=3.8(460)32x-10×0.3=13(461)4x-2×2.1=9.4(462)11x-13×0.9=2.6(463)31x-35×0.4=1.5(464)11x-2×2.2=3.3(465)4x-5×1=9.4(466)23x-5×1.8=4.8(467)5x-5×1.9=3(468)7x-6×2.5=2.5(469)3(x+13)=75(470)2(x+15)=86(471)3(4x+11)=141(472)6(5x+14)=174(473)2(8x+35)=102(474)23(x+3)=184(475)3(x+21)=120(476)4(x+12)=176(477)3(4x+17)=171(478)6(4x-11)=198(479)3(2x-11)=99(480)7(9x-3)=168(481)9(x-25)=99(482)2(x-14)=56(483)3(18x-8)=192(484)11(2x-20)=154(485)2(28x-40)=88(486)2(9x-6)=78(487)3(0.2x+2.8)=14.4(488)2(0.5x+1.6)=12.2(489)5(0.3x+0.7)=45.5(490)2(0.7x+9.9)=35.2(491)17(0.2x+1.5)=32.3(492)2(0.8x+3)=28.4(493)3(1.7x+0.3)=36.6(494)2(1.3x+5.8)=37.6(495)8(0.3x+1.1)=47.2(496)27(0.4x-8.5)=40.5(497)13(2.2x-7)=23.4(498)20(0.2x-6.8)=40(499)9(3.2x-5)=41.4(500)8(6x-5.8)=49.6(501)2(5.8x-5.7)=46.6(502)2(2x-8.7)=42.6(503)5(0.8x-4.2)=7(504)3(1.9x-5.7)=17.1(505)(14x+12)÷6=37(506)(7x+6)÷2=31(507)(6x+42)÷12=7(508)(16x+6)÷26=7(509)(5x+11)÷19=4(510)(2x+34)÷8=8(511)(x+41)÷16=3(512)(5x+47)÷2=96(513)(13x+20)÷2=101(514)(12x-28)÷28=5(515)(8x-12)÷4=19(516)(10x-33)÷3=39(517)(15x-33)÷49=3(518)(10x-37)÷29=7(519)(15x-21)÷6=4(520)(2x-7)÷3=17(521)(13x-21)÷3=58(522)(12x-21)÷15=9(523)(4.3x+7.1)÷23=3.3(524)(x+7.8)÷3=6.6(525)(7.1x+3.1)÷11=4.8(526)(2.4x+6)÷4=9.3(527)(4.4x+8.2)÷2=8.5(528)(4.2x+3.4)÷37=1(529)(4.3x+4.7)÷17=2.3(530)(8.6x+5)÷8=10.3(531)(7.9x+2)÷19=2.6(532)(5.7x-4.4)÷29=2.6(533)(9.8x-5.6)÷14=3.1(534)(9.2x-5.6)÷4=10.1(535)(6.2x-5.6)÷18=2.1(536)(7.2x-7.8)÷15=3.8(537)(1.6x-1.8)÷3=9(538)(5.8x-1.2)÷2=5.2(539)(7.2x-6.4)÷23=1.6(540)(4.5x-9.9)÷23=2.7参考答案(1)x=99(2)x=61(3)x=45(4)x=15(5)x=38(6)x=40(7)x=74(8)x=99(9)x=5(10)x=73(11)x=21(12)x=74(13)x=71(14)x=93(15)x=87(16)x=94(17)x=97(18)x=77(19)x=8.7(20)x=5.7(21)x=7.9(22)x=9(23)x=6(24)x=3.9(25)x=9.6(26)x=4.4(27)x=3.9(28)x=7.9(29)x=8(30)x=5.3(31)x=4(32)x=5.3(33)x=5.4(34)x=9.5(35)x=9.2(36)x=6.5(37)x=82(38)x=18(39)x=92(40)x=59(41)x=77(42)x=15(43)x=91(44)x=17(45)x=56(46)x=18(47)x=7(48)x=40(49)x=21(50)x=80(51)x=6(52)x=39(53)x=43(54)x=11(55)x=0.9(56)x=1.4(57)x=1(58)x=2.3(59)x=2(60)x=1.3(61)x=4.1(62)x=5.9(63)x=2.7(64)x=3.4(65)x=1.4(66)x=3(67)x=2.8(68)x=3.8(69)x=3.3(70)x=6.3(71)x=1.8(72)x=7(73)x=2(74)x=4(75)x=12(76)x=13(77)x=10(78)x=5(79)x=12(80)x=45(81)x=10(82)x=9(83)x=94(84)x=7(85)x=81(86)x=11(87)x=66(88)x=5(89)x=5(90)x=44(91)x=0.7(92)x=2.1(93)x=1(94)x=0.9(95)x=3.3(96)x=1.1(97)x=0.2(98)x=8.6(99)x=0.2(100)x=12(101)x=10(102)x=4(103)x=16(104)x=3(105)x=14(106)x=41(107)x=32(108)x=28(109)x=14(110)x=74(111)x=14(112)x=19(113)x=42(114)x=40(115)x=3(116)x=7(117)x=15(118)x=169(119)x=64(120)x=124(121)x=99(122)x=116(123)x=108(124)x=135(125)x=177(126)x=27(127)x=8.8(128)x=16.8(129)x=10.4(130)x=18(131)x=18(132)x=5.2(133)x=18.9(134)x=17.2(135)x=4.5(136)x=2(137)x=3(138)x=10(139)x=2(140)x=2(141)x=8(142)x=4(143)x=2(144)x=3(145)x=10(146)x=2(147)x=2(148)x=2(149)x=8(150)x=3(151)x=25(152)x=98(153)x=75(154)x=0.2(155)x=0.2(156)x=2.5(157)x=0.5(158)x=1(159)x=1(160)x=8.3(161)x=0.2(162)x=0.6(163)x=20(164)x=10(165)x=25(166)x=8(167)x=22(168)x=2(169)x=66(170)x=3(171)x=6(172)x=0.5(173)x=5.3(174)x=0.6(175)x=1.5(176)x=0.3(177)x=2.6(178)x=0.2(179)x=0.8(180)x=0.2(181)x=43(182)x=16(183)x=26(184)x=22(185)x=15(186)x=10(187)x=9(188)x=9(189)x=6(190)x=2(191)x=79(192)x=28(193)x=37(194)x=8(195)x=25(196)x=28(197)x=15(198)x=23(199)x=5(200)x=10(201)x=14(202)x=6(203)x=11(204)x=15(205)x=4(206)x=7(207)x=7(208)x=28(209)x=11(210)x=13(211)x=3(212)x=32(213)x=49(214)x=4(215)x=39(216)x=3(217)x=0.6(218)x=1.3(219)x=4(220)x=3.1(221)x=0.4(222)x=0.7(223)x=8.7(224)x=5.8(225)x=1.1(226)x=17(227)x=26(228)x=4(229)x=3(230)x=64(231)x=2(232)x=2(233)x=3(234)x=4(235)x=0.3(236)x=0.9(237)x=0.4(238)x=0.9(239)x=0.8(240)x=1.4(241)x=1.2(242)x=0.7(243)x=0.8(244)x=75(245)x=3(246)x=6(247)x=42(248)x=4(249)x=10(250)x=24(251)x=8(252)x=2(253)x=4(254)x=18(255)x=2(256)x=2(257)x=82(258)x=7(259)x=64(260)x=12(261)x=20(262)x=0.2(263)x=2.7(264)x=0.6(265)x=3.2(266)x=2(267)x=4.9(268)x=1(269)x=1.8(270)x=0.9(271)x=8(272)x=13(273)x=2(274)x=13(275)x=19(276)x=14(277)x=11(278)x=30(279)x=4(280)x=18(281)x=21(282)x=26(283)x=8(284)x=2(285)x=11(286)x=8(287)x=8(288)x=7(289)x=51(290)x=5(291)x=10(292)x=29(293)x=2(294)x=20(295)x=27(296)x=2(297)x=12(298)x=5(299)x=10(300)x=7(301)x=13(302)x=55(303)x=70(304)x=5(305)x=10(306)x=27(307)x=17(308)x=21(309)x=7(310)x=3(311)x=9(312)x=7(313)x=5(314)x=30(315)x=11(316)x=6(317)x=4(318)x=12(319)x=3(320)x=13(321)x=8(322)x=3(323)x=24(324)x=36(325)x=3(326)x=15(327)x=37(328)x=16(329)x=8(330)x=15(331)x=8(332)x=13(333)x=17(334)x=19(335)x=14(336)x=32(337)x=9(338)x=20(339)x=18(340)x=14(341)x=9(342)x=20(343)x=21(344)x=8(345)x=13(346)x=22(347)x=7(348)x=14(349)x=2(350)x=10(351)x=9(352)x=1(353)x=2.9(354)x=0.4(355)x=1.5(356)x=0.2(357)x=2.3(358)x=0.5(359)x=1.7(360)x=0.2(361)x=3(362)x=9(363)x=10(364)x=13(365)x=5(366)x=43(367)x=19(368)x=35(369)x=6(370)x=1.4(371)x=0.4(372)x=0.9(373)x=0.4(374)x=1.2(375)x=1.9(376)x=1.5(377)x=0.2(378)x=0.2(379)x=46(380)x=27(381)x=9(382)x=15(383)x=11(384)x=5(385)x=7(386)x=15(387)x=6(388)x=0.5(389)x=5(390)x=1.5(391)x=6.1(392)x=1