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+38=112(2)x+44=80(3)x+55=97(4)x+30=124(5)x+4=46(6)x+23=51(7)x+46=55(8)x+81=156(9)x+25=92(10)x-3=91(11)x-19=50(12)x-58=34(13)x-73=13(14)x-20=77(15)x-34=63(16)x-42=21(17)x-11=43(18)x-7=57(19)x+4.5=6.7(20)x+6.4=12.3(21)x+4.6=7.9(22)x+9.4=15.9(23)x+2.3=8.4(24)x+4=8.4(25)x+4.9=8(26)x+5=14.7(27)x+8.2=12.1(28)x-6.4=2.2(29)x-4.9=5(30)x-4.7=4.8(31)x-6.2=3.7(32)x-4.3=2.9(33)x-3.2=5.3(34)x-5=3.6(35)x-6=2.5(36)x-2.1=7.3(37)48+x=94(38)61+x=124(39)91+x=150(40)6+x=54(41)73+x=167(42)61+x=76(43)64+x=138(44)98+x=141(45)72+x=152(46)74-x=13(47)60-x=24(48)58-x=40(49)79-x=10(50)77-x=46(51)49-x=32(52)87-x=69(53)48-x=16(54)79-x=64(55)8+x=13.8(56)4.3+x=12.6(57)5.9+x=7.8(58)6.9+x=9.6(59)7.2+x=15.1(60)7.8+x=9.4(61)2.7+x=8.8(62)6.9+x=14.9(63)3.8+x=13.1(64)2-x=1.4(65)7-x=3.4(66)8.2-x=2.3(67)7-x=5.3(68)3-x=2.1(69)9-x=3.2(70)7.1-x=4(71)9-x=2.7(72)8.7-x=5.7(73)4x=152(74)27x=135(75)2x=192(76)5x=200(77)2x=116(78)32x=96(79)15x=105(80)3x=153(81)15x=180(82)1.7x=3.4(83)0.2x=9(84)0.2x=18(85)0.2x=19.4(86)0.2x=1.6(87)5.4x=10.8(88)2x=12(89)6.8x=13.6(90)0.7x=8.4(91)23x=6.9(92)10x=18(93)11x=19.8(94)86x=17.2(95)11x=14.3(96)17x=10.2(97)45x=9(98)9x=17.1(99)2x=19.2(100)39÷x=3(101)65÷x=13(102)164÷x=4(103)105÷x=3(104)150÷x=5(105)14÷x=7(106)168÷x=4(107)92÷x=46(108)196÷x=4(109)9.6÷x=0.2(110)5.6÷x=0.2(111)13.8÷x=0.3(112)15÷x=0.6(113)19.6÷x=1.4(114)4.4÷x=1.1(115)18.4÷x=0.4(116)3÷x=0.2(117)10.5÷x=3.5(118)x÷32=2(119)x÷2=2(120)x÷4=21(121)x÷39=3(122)x÷11=5(123)x÷11=8(124)x÷24=8(125)x÷17=11(126)x÷48=2(127)x÷17=0.8(128)x÷95=0.2(129)x÷6=2.7(130)x÷35=0.4(131)x÷34=0.3(132)x÷5=2.9(133)x÷3=3(134)x÷2=4.9(135)x÷17=0.7(136)13x+49=101(137)10x+19=219(138)3x+23=32(139)6x+12=132(140)50x+34=234(141)15x+34=154(142)64x+35=163(143)5x+28=158(144)18x+15=195(145)8x-54=50(146)22x-37=95(147)2x-35=47(148)6x-30=120(149)3x-53=124(150)51x-41=61(151)4x-23=121(152)4x-28=64(153)26x-18=34(154)26x+2.7=7.9(155)4x+2.5=12.1(156)82x+5.6=22(157)2x+4.4=6.2(158)9x+2.4=7.8(159)14x+3.6=23.2(160)16x+5.1=17.9(161)18x+5.3=17.9(162)90x+4.1=22.1(163)2.8x+1.7=21.3(164)1.9x+5=10.7(165)0.5x+3=10.5(166)0.8x+5=13(167)0.3x+2.9=5(168)2.6x+5.1=18.1(169)0.2x+2.9=10.3(170)0.3x+4.8=22.2(171)0.8x+3.1=4.7(172)57x-1.6=9.8(173)29x-1.4=7.3(174)4x-3.6=12(175)39x-4.2=15.3(176)3x-2.1=9.3(177)32x-1.7=4.7(178)8x-1.8=8.6(179)2x-1=16.4(180)6x-3.8=2.8(181)3.7x-4.3=6.8(182)4.7x-1.9=7.5(183)0.9x-5.6=13.3(184)0.7x-3.7=6.1(185)4.2x-1=15.8(186)0.2x-4.5=9.1(187)2.5x-2=8(188)0.5x-3.8=12.2(189)3x-2.6=9.4(190)33+9x=78(191)114+10x=274(192)179+52x=335(193)44+11x=110(194)148+12x=328(195)133+5x=328(196)53+16x=85(197)147+48x=243(198)197+8x=309(199)171-2x=161(200)190-3x=145(201)82-16x=50(202)160-10x=40(203)136-3x=97(204)115-37x=41(205)192-16x=160(206)198-7x=79(207)160-18x=124(208)10.7+2x=26.7(209)1+1.1x=16.4(210)13.1+1.1x=25.2(211)8.6+0.2x=20.6(212)5+0.5x=21(213)12.2+2.6x=25.2(214)17.7+0.9x=24.9(215)14+1.3x=32.2(216)12.3+0.5x=25.3(217)19.9+2x=33.5(218)15.2+2x=26.8(219)8.6+27x=24.8(220)2.6+17x=16.2(221)1.8+3x=13.8(222)15.2+6x=25.4(223)8.6+4x=15.4(224)7.8+14x=20.4(225)12.5+2x=21.3(226)8.9-0.9x=5.3(227)15.6-0.7x=5.8(228)17.9-0.3x=15.2(229)13.4-0.4x=4.6(230)13.8-5.3x=3.2(231)19.3-1.8x=13.9(232)12.9-0.5x=9.9(233)9.7-0.3x=9.1(234)14.2-1.3x=9(235)11.6-24x=6.8(236)7.9-4x=1.9(237)19.4-11x=13.9(238)5.8-3x=1.6(239)15.5-17x=12.1(240)17.1-7x=12.9(241)16.9-5x=10.4(242)16-9x=4.3(243)16.7-38x=9.1(244)15x÷5=30(245)2x÷19=6(246)3x÷24=5(247)2x÷5=18(248)3x÷9=19(249)44x÷11=16(250)6x÷5=24(251)12x÷21=8(252)12x÷8=6(253)1.2x÷20=0.9(254)0.3x÷5=0.6(255)0.6x÷2=4.8(256)0.2x÷20=0.4(257)3.9x÷6=1.3(258)0.4x÷16=1.1(259)0.3x÷15=0.7(260)1.5x÷5=2.7(261)0.7x÷14=1.3(262)60x÷45=0.4(263)3x÷8=1.2(264)36x÷30=0.6(265)28x÷6=1.4(266)3x÷4=2.1(267)40x÷6=2(268)10x÷4=4.5(269)3x÷9=1.9(270)3x÷5=0.6(271)8x+17x=75(272)13x+7x=180(273)2x+19x=84(274)4x+8x=36(275)7x+8x=285(276)8x+9x=221(277)10x+5x=135(278)18x+14x=192(279)18x+17x=350(280)17x-10x=56(281)7x-2x=90(282)15x-3x=24(283)15x-5x=100(284)17x-2x=45(285)8x-5x=12(286)6x-4x=52(287)13x-8x=25(288)12x-3x=90(289)8.2x+7.9x=96.6(290)8.6x+0.3x=71.2(291)4.2x+7.8x=36(292)1.1x+6.8x=63.2(293)9.1x+8.7x=178(294)1.2x+5.3x=52(295)6.1x+6x=108.9(296)7.6x+4.9x=125(297)2.2x+0.4x=15.6(298)2.6x-1.3x=31.2(299)1.4x-0.2x=26.4(300)2.5x-1x=60(301)7.3x-3.4x=7.8(302)8.2x-2.3x=35.4(303)5.5x-3.3x=19.8(304)5.1x-1.5x=57.6(305)1.1x-0.9x=14.4(306)8.9x-7.5x=14(307)11x+16x+13=94(308)13x+9x+20=350(309)9x+2x+43=98(310)15x+6x+27=111(311)14x+7x+8=281(312)2x+13x+6=171(313)11x+4x+37=187(314)5x+3x+30=166(315)18x+2x+46=166(316)5x+7x-14=142(317)5x+15x-22=38(318)17x+15x-19=237(319)5x+3x-14=18(320)18x+14x-34=62(321)4x+9x-24=15(322)5x+14x-24=90(323)11x+15x-46=266(324)18x+15x-37=29(325)16x-12x+3=31(326)17x-13x+18=62(327)8x-2x+43=181(328)13x-2x+13=46(329)16x-8x+36=60(330)15x-8x+8=50(331)6x-2x+20=68(332)10x-5x+29=129(333)10x-7x+29=68(334)8x-3x-18=92(335)18x-7x-34=65(336)9x-6x-17=40(337)13x-5x-4=44(338)16x-2x-12=156(339)11x-4x-3=67(340)15x-3x-20=76(341)18x-8x-34=76(342)7x-2x-11=14(343)3.4x+6.8x+1.4=32(344)2.8x+8.5x+3.4=116.4(345)2x+6.1x+1.6=115(346)2.1x+2x+1.1=115.9(347)6.1x+2.7x+1.3=71.7(348)1.3x+0.9x+1.1=93.5(349)7.4x+7.1x+4.9=178.9(350)1.9x+5.5x+1.9=31.5(351)3.6x+4.2x+1.6=181(352)32x+27x+0.9=59.9(353)89x+80x+3.7=71.3(354)22x+30x+2.2=95.8(355)71x+47x+3.8=39.2(356)36x+85x+1.4=110.3(357)67x+5x+2.7=45.9(358)26x+59x+3.8=80.3(359)8x+15x+3=88.1(360)12x+2x+4.8=34.2(361)4.8x+6.7x-0.8=102.7(362)7.3x+0.9x-4.9=36.1(363)0.8x+0.6x-2.5=130.5(364)2.7x+5.8x-1.4=24.1(365)4.9x+1.5x-2.7=48.5(366)3.5x+8.2x-3.8=66.4(367)6.5x+0.2x-4.4=82.7(368)2.3x+2.1x-1.5=178.9(369)4.1x+2.1x-3.5=95.7(370)9x+52x-4=26.5(371)22x+10x-1=98.2(372)80x+91x-1.5=32.7(373)18x+88x-1.2=62.4(374)70x+94x-2.4=112.4(375)55x+49x-1.7=102.3(376)98x+17x-3.5=88.5(377)10x+4x-1.5=19.5(378)33x+85x-0.3=105.9(379)2.9x-0.2x+3.9=84.9(380)8.7x-1.6x+0.4=50.1(381)4.4x-0.3x+4.3=37.1(382)8.7x-1.7x+3=45(383)3.8x-3.2x+2.2=8.8(384)5.2x-1.5x+2.6=13.7(385)3.5x-1.8x+2.3=10.8(386)4.6x-3.5x+3.8=26.9(387)7.3x-6.4x+0.9=3.6(388)88x-70x+3.5=23.3(389)33x-23x+1=22(390)99x-65x+3.1=16.7(391)73x-70x+3.1=5.8(392)77x-47x+1.8=31.8(393)73x-13x+4.9=64.9(394)67x-16x+0.7=10.9(395)47x-25x+3.8=10.4(396)49x-28x+3=13.5(397)8.5x-1.7x-3.2=10.4(398)6.6x-0.3x-2=67.3(399)4.7x-2.1x-1.2=27.4(400)9.3x-7.2x-3.2=9.4(401)7.5x-1.8x-0.9=56.1(402)5.2x-1.6x-4.1=6.7(403)1x-0.6x-1=17.4(404)2.7x-0.3x-0.9=8.7(405)1.6x-0.3x-2.7=37.6(406)87x-5x-4.8=85.4(407)43x-38x-0.3=10.2(408)10x-4x-1=56.6(409)68x-35x-4.8=31.5(410)31x-7x-3.8=49(411)54x-17x-0.9=25(412)84x-74x-3.3=2.7(413)43x-7x-1.7=63.1(414)99x-68x-3=9.4(415)2x+49×2=236(416)7x+22×9=331(417)2x+24×8=378(418)3x+3×60=294(419)4x+5×39=335(420)6x+40×3=150(421)8x+9×8=120(422)6x+2×31=182(423)2x+16×12=212(424)7x-22×2=19(425)10x-4×14=64(426)10x-7×18=34(427)2x-19×3=117(428)17x-4×9=151(429)4x-12×4=148(430)2x-11×4=22(431)3x-4×3=21(432)7x-33×3=34(433)0.4x+0.6×18=12(434)0.2x+0.5×9=12.9(435)0.3x+0.3×33=18.3(436)0.5x+0.5×37=28.5(437)1x+0.2×4=6.8(438)0.6x+0.5×13=12.5(439)0.5x+0.8×14=29.7(440)0.5x+0.2×44=28.3(441)0.8x+0.4×13=10.8(442)4x+2×1.7=7.4(443)31x+3×0.6=17.3(444)19x+2×4.4=14.5(445)5x+2×3=25.5(446)27x+19×0.4=18.4(447)20x+25×0.2=13(448)16x+12×0.7=26(449)11x+32×0.6=24.7(450)8x+5×3.7=34.5(451)4.6x-0.2×12=11.4(452)0.4x-0.7×5=12.1(453)0.3x-2×3=7.8(454)0.3x-0.3×31=1.5(455)0.6x-0.6×4=11.4(456)1.5x-4.7×3=3.9(457)0.9x-0.2×41=4.4(458)1.5x-0.6×20=6(459)2.6x-0.2×6=14.4(460)15x-26×0.4=1.6(461)5x-4×3.5=5(462)14x-19×0.2=1.8(463)11x-3×1.4=11.2(464)21x-2×2.9=13.1(465)4x-20×0.3=6(466)34x-7×1=6.6(467)3x-4×0.8=3.4(468)31x-5×3.1=3.1(469)4(x+4)=124(470)3(12x+11)=141(471)3(5x+40)=165(472)5(3x+9)=90(473)2(5x+39)=168(474)2(6x+13)=62(475)2(18x+32)=136(476)14(x+5)=98(477)3(x+4)=48(478)3(6x-46)=186(479)6(3x-15)=108(480)2(3x-34)=196(481)3(19x-16)=180(482)6(13x-3)=138(483)2(6x-45)=186(484)7(x-22)=168(485)3(6x-14)=84(486)8(29x-48)=80(487)2(1.9x+0.5)=39(488)2(1.9x+4.1)=19.6(489)3(0.2x+8.4)=36.6(490)2(0.5x+7)=25(491)2(0.4x+5.3)=38.6(492)2(0.5x+7.6)=32.2(493)2(0.2x+3.4)=19.2(494)2(2.1x+1.6)=15.8(495)20(0.4x+0.8)=32(496)2(2.9x-5.7)=40.8(497)26(5.4x-9.2)=41.6(498)2(8x-9.9)=12.2(499)8(0.6x-9.5)=39.2(500)2(0.6x-4)=19.6(501)3(0.6x-4.2)=18(502)10(x-8)=10(503)10(0.6x-8.9)=31(504)2(7.1x-0.8)=26.8(505)(14x+32)÷17=6(506)(14x+25)÷3=69(507)(13x+13)÷2=26(508)(x+29)÷45=1(509)(9x+36)÷9=14(510)(10x+20)÷2=145(511)(4x+34)÷3=34(512)(11x+4)÷4=45(513)(5x+21)÷33=2(514)(10x-38)÷3=74(515)(5x-32)÷39=2(516)(11x-19)÷8=10(517)(15x-42)÷3=16(518)(19x-28)÷4=31(519)(18x-12)÷10=15(520)(15x-21)÷2=72(521)(12x-48)÷6=16(522)(2x-22)÷5=4(523)(5.7x+9.5)÷5=13.3(524)(2.8x+2.6)÷9=3.4(525)(0.8x+9.6)÷8=1.4(526)(4x+0.8)÷6=8.8(527)(0.2x+4.8)÷11=0.6(528)(4.8x+8)÷8=5.8(529)(7.4x+3.6)÷2=49.9(530)(0.7x+3.7)÷2=6.4(531)(1.8x+3.6)÷18=0.5(532)(7.5x-8.7)÷4=7.2(533)(4.9x-6.4)÷29=1.3(534)(1.9x-2.2)÷21=0.8(535)(6.4x-0.8)÷18=2.8(536)(3.9x-3.8)÷5=8.6(537)(8.9x-2)÷5=8.5(538)(7x-8.5)÷13=1.5(539)(5.1x-4.8)÷2=7.8(540)(5.4x-0.6)÷16=3参考答案(1)x=74(2)x=36(3)x=42(4)x=94(5)x=42(6)x=28(7)x=9(8)x=75(9)x=67(10)x=94(11)x=69(12)x=92(13)x=86(14)x=97(15)x=97(16)x=63(17)x=54(18)x=64(19)x=2.2(20)x=5.9(21)x=3.3(22)x=6.5(23)x=6.1(24)x=4.4(25)x=3.1(26)x=9.7(27)x=3.9(28)x=8.6(29)x=9.9(30)x=9.5(31)x=9.9(32)x=7.2(33)x=8.5(34)x=8.6(35)x=8.5(36)x=9.4(37)x=46(38)x=63(39)x=59(40)x=48(41)x=94(42)x=15(43)x=74(44)x=43(45)x=80(46)x=61(47)x=36(48)x=18(49)x=69(50)x=31(51)x=17(52)x=18(53)x=32(54)x=15(55)x=5.8(56)x=8.3(57)x=1.9(58)x=2.7(59)x=7.9(60)x=1.6(61)x=6.1(62)x=8(63)x=9.3(64)x=0.6(65)x=3.6(66)x=5.9(67)x=1.7(68)x=0.9(69)x=5.8(70)x=3.1(71)x=6.3(72)x=3(73)x=38(74)x=5(75)x=96(76)x=40(77)x=58(78)x=3(79)x=7(80)x=51(81)x=12(82)x=2(83)x=45(84)x=90(85)x=97(86)x=8(87)x=2(88)x=6(89)x=2(90)x=12(91)x=0.3(92)x=1.8(93)x=1.8(94)x=0.2(95)x=1.3(96)x=0.6(97)x=0.2(98)x=1.9(99)x=9.6(100)x=13(101)x=5(102)x=41(103)x=35(104)x=30(105)x=2(106)x=42(107)x=2(108)x=49(109)x=48(110)x=28(111)x=46(112)x=25(113)x=14(114)x=4(115)x=46(116)x=15(117)x=3(118)x=64(119)x=4(120)x=84(121)x=117(122)x=55(123)x=88(124)x=192(125)x=187(126)x=96(127)x=13.6(128)x=19(129)x=16.2(130)x=14(131)x=10.2(132)x=14.5(133)x=9(134)x=9.8(135)x=11.9(136)x=4(137)x=20(138)x=3(139)x=20(140)x=4(141)x=8(142)x=2(143)x=26(144)x=10(145)x=13(146)x=6(147)x=41(148)x=25(149)x=59(150)x=2(151)x=36(152)x=23(153)x=2(154)x=0.2(155)x=2.4(156)x=0.2(157)x=0.9(158)x=0.6(159)x=1.4(160)x=0.8(161)x=0.7(162)x=0.2(163)x=7(164)x=3(165)x=15(166)x=10(167)x=7(168)x=5(169)x=37(170)x=58(171)x=2(172)x=0.2(173)x=0.3(174)x=3.9(175)x=0.5(176)x=3.8(177)x=0.2(178)x=1.3(179)x=8.7(180)x=1.1(181)x=3(182)x=2(183)x=21(184)x=14(185)x=4(186)x=68(187)x=4(188)x=32(189)x=4(190)x=5(191)x=16(192)x=3(193)x=6(194)x=15(195)x=39(196)x=2(197)x=2(198)x=14(199)x=5(200)x=15(201)x=2(202)x=12(203)x=13(204)x=2(205)x=2(206)x=17(207)x=2(208)x=8(209)x=14(210)x=11(211)x=60(212)x=32(213)x=5(214)x=8(215)x=14(216)x=26(217)x=6.8(218)x=5.8(219)x=0.6(220)x=0.8(221)x=4(222)x=1.7(223)x=1.7(224)x=0.9(225)x=4.4(226)x=4(227)x=14(228)x=9(229)x=22(230)x=2(231)x=3(232)x=6(233)x=2(234)x=4(235)x=0.2(236)x=1.5(237)x=0.5(238)x=1.4(239)x=0.2(240)x=0.6(241)x=1.3(242)x=1.3(243)x=0.2(244)x=10(245)x=57(246)x=40(247)x=45(248)x=57(249)x=4(250)x=20(251)x=14(252)x=4(253)x=15(254)x=10(255)x=16(256)x=40(257)x=2(258)x=44(259)x=35(260)x=9(261)x=26(262)x=0.3(263)x=3.2(264)x=0.5(265)x=0.3(266)x=2.8(267)x=0.3(268)x=1.8(269)x=5.7(270)x=1(271)x=3(272)x=9(273)x=4(274)x=3(275)x=19(276)x=13(277)x=9(278)x=6(279)x=10(280)x=8(281)x=18(282)x=2(283)x=10(284)x=3(285)x=4(286)x=26(287)x=5(288)x=10(289)x=6(290)x=8(291)x=3(292)x=8(293)x=10(294)x=8(295)x=9(296)x=10(297)x=6(298)x=24(299)x=22(300)x=40(301)x=2(302)x=6(303)x=9(304)x=16(305)x=72(306)x=10(307)x=3(308)x=15(309)x=5(310)x=4(311)x=13(312)x=11(313)x=10(314)x=17(315)x=6(316)x=13(317)x=3(318)x=8(319)x=4(320)x=3(321)x=3(322)x=6(323)x=12(324)x=2(325)x=7(326)x=11(327)x=23(328)x=3(329)x=3(330)x=6(331)x=12(332)x=20(333)x=13(334)x=22(335)x=9(336)x=19(337)x=6(338)x=12(339)x=10(340)x=8(341)x=11(342)x=5(343)x=3(344)x=10(345)x=14(346)x=28(347)x=8(348)x=42(349)x=12(350)x=4(351)x=23(352)x=1(353)x=0.4(354)x=1.8(355)x=0.3(356)x=0.9(357)x=0.6(358)x=0.9(359)x=3.7(360)x=2.1(361)x=9(362)x=5(363)x=95(364)x=3(365)x=8(366)x=6(367)x=13(368)x=41(369)x=16(370)x=0.5(371)x=3.1(372)x=0.2(373)x=0.6(374)x=0.7(375)x=1(376)x=0.8(377)x=1.5(378)x=0.9(379)x=30(380)x=7(381)x=8(382)x=6(383)x=11(384)x=3(385)x=5(386)x=21(387)x=3(388)x=1.1(389)x=2.1(390)x=0.4(391)x=0.9(392)x=