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+63=157(2)x+38=121(3)x+23=114(4)x+34=112(5)x+6=77(6)x+55=74(7)x+49=84(8)x+34=70(9)x+60=100(10)x-14=83(11)x-50=19(12)x-5=29(13)x-49=29(14)x-80=15(15)x-53=30(16)x-17=11(17)x-40=13(18)x-31=64(19)x+9.5=10.3(20)x+6=15(21)x+2.7=8.3(22)x+3.4=10.9(23)x+6.5=15.7(24)x+3.8=12.7(25)x+1.1=6(26)x+6.9=8.1(27)x+6=9.9(28)x-1.4=2.8(29)x-2.9=4.2(30)x-5=2.1(31)x-4.2=4.6(32)x-2.4=5.7(33)x-8.4=1(34)x-1.8=4.6(35)x-1.9=5.6(36)x-1.3=1.7(37)40+x=78(38)89+x=113(39)87+x=122(40)19+x=85(41)81+x=156(42)7+x=55(43)58+x=142(44)8+x=22(45)73+x=149(46)82-x=77(47)99-x=79(48)84-x=35(49)42-x=26(50)81-x=29(51)44-x=40(52)53-x=29(53)89-x=78(54)63-x=39(55)0.4+x=8.7(56)3.6+x=10.2(57)0.6+x=5.5(58)6.4+x=10.3(59)4.4+x=6.7(60)2.7+x=8.2(61)2.9+x=12.6(62)4.1+x=11.7(63)3.8+x=13(64)7-x=2.2(65)7.4-x=4(66)7.4-x=6.4(67)5.8-x=2.3(68)4.2-x=2.1(69)8.7-x=7.8(70)9.6-x=2.1(71)6.5-x=5.1(72)6.8-x=4.4(73)2x=180(74)3x=21(75)8x=168(76)4x=100(77)38x=76(78)3x=42(79)2x=58(80)29x=116(81)4x=140(82)0.2x=9.8(83)1.1x=8.8(84)4.4x=13.2(85)0.4x=0.8(86)0.2x=3.6(87)0.9x=13.5(88)2x=20(89)0.9x=19.8(90)3.7x=11.1(91)2x=13(92)3x=11.1(93)2x=7.6(94)3x=19.8(95)8x=17.6(96)17x=8.5(97)2x=7.8(98)3x=17.7(99)10x=6(100)66÷x=2(101)102÷x=6(102)152÷x=38(103)192÷x=12(104)45÷x=5(105)30÷x=2(106)130÷x=10(107)108÷x=3(108)180÷x=6(109)10.2÷x=0.6(110)18.5÷x=3.7(111)7.5÷x=2.5(112)5.1÷x=1.7(113)3.8÷x=1.9(114)7.2÷x=1.2(115)16÷x=1.6(116)18.7÷x=1.7(117)10.8÷x=1.2(118)x÷6=18(119)x÷23=6(120)x÷3=6(121)x÷81=2(122)x÷34=2(123)x÷4=23(124)x÷31=4(125)x÷4=12(126)x÷3=33(127)x÷9=0.3(128)x÷25=0.5(129)x÷67=0.2(130)x÷6=2.6(131)x÷9=0.5(132)x÷46=0.2(133)x÷8=1.4(134)x÷30=0.5(135)x÷4=1.9(136)23x+39=108(137)2x+58=150(138)9x+18=171(139)4x+15=211(140)3x+41=71(141)29x+49=136(142)100x+20=220(143)5x+32=202(144)5x+51=241(145)3x-36=30(146)15x-14=31(147)17x-27=143(148)22x-26=106(149)3x-56=88(150)34x-12=124(151)2x-23=161(152)41x-20=62(153)4x-14=138(154)2x+3.3=4.5(155)5x+5=16(156)13x+2.8=17.1(157)2x+4.8=18(158)26x+1.6=9.4(159)7x+3.8=8(160)22x+1.2=18.8(161)6x+5.3=17.9(162)15x+4.3=22.3(163)0.2x+2.3=10.3(164)0.2x+1.5=3.1(165)3x+2.9=14.9(166)0.3x+2=6.2(167)4.5x+1.1=10.1(168)0.6x+1.2=19.8(169)1.9x+4.3=23.3(170)0.4x+3.6=22.4(171)4.1x+5=21.4(172)26x-4.9=10.7(173)2x-1=17.4(174)91x-2.3=15.9(175)10x-1=12(176)31x-5.7=12.9(177)59x-1.4=10.4(178)38x-4.4=14.6(179)5x-2.5=6(180)9x-4.8=15(181)3.2x-1.5=8.1(182)0.2x-2.3=9.7(183)0.2x-5.2=14(184)3.2x-2.5=16.7(185)0.2x-2.4=10.2(186)1.3x-3.9=13(187)3.9x-1.4=18.1(188)6.2x-3.9=8.5(189)3.6x-1.6=5.6(190)198+5x=313(191)68+30x=188(192)54+11x=76(193)46+4x=190(194)196+9x=367(195)67+2x=211(196)174+6x=372(197)32+9x=176(198)140+24x=284(199)144-2x=128(200)87-12x=51(201)70-20x=10(202)163-18x=37(203)97-3x=40(204)198-2x=76(205)146-2x=76(206)185-30x=95(207)171-15x=96(208)1.6+0.2x=2.6(209)15.7+0.5x=32.2(210)1.2+3.7x=19.7(211)19.8+0.2x=32.2(212)9+0.2x=10.4(213)17.3+1.4x=32.7(214)3.3+3.7x=10.7(215)1+0.2x=6.4(216)12.5+1.9x=22(217)1.3+5x=3.3(218)5.3+3x=20.9(219)16+98x=35.6(220)6.5+41x=18.8(221)16.8+13x=27.2(222)2.3+11x=4.5(223)12.6+3x=28.2(224)13.7+13x=21.5(225)9.9+41x=26.3(226)14.8-1.1x=11.5(227)9.7-0.8x=4.9(228)19.9-6.3x=1(229)14.2-0.4x=2.6(230)17.3-0.2x=13.9(231)19.6-1.1x=17.4(232)15.2-0.3x=1.1(233)5.5-1x=1.5(234)15.5-1.8x=11.9(235)8.9-2x=7.5(236)19.3-89x=1.5(237)15.5-2x=2.5(238)19.3-2x=14.9(239)12.1-10x=4.1(240)17.8-35x=3.8(241)10.3-11x=8.1(242)18.4-10x=9.4(243)17.4-24x=3(244)12x÷3=24(245)18x÷9=16(246)48x÷72=2(247)22x÷11=4(248)72x÷48=3(249)21x÷7=27(250)3x÷9=8(251)10x÷35=4(252)5x÷40=2(253)0.2x÷40=0.3(254)0.3x÷6=2.4(255)0.3x÷15=1.1(256)0.3x÷9=2.2(257)9.8x÷7=2.8(258)3.6x÷8=0.9(259)7x÷28=0.5(260)4.2x÷21=0.6(261)2.8x÷4=2.1(262)16x÷12=1.2(263)2x÷12=0.4(264)36x÷8=0.9(265)5x÷2=3(266)11x÷33=0.6(267)14x÷7=0.8(268)2x÷3=1.2(269)3x÷5=1.2(270)2x÷13=1.2(271)4x+5x=18(272)5x+13x=180(273)7x+12x=209(274)19x+8x=135(275)4x+2x=90(276)14x+5x=76(277)12x+18x=270(278)9x+3x=144(279)4x+2x=168(280)15x-13x=18(281)13x-2x=55(282)18x-6x=60(283)8x-2x=72(284)19x-5x=126(285)12x-2x=50(286)15x-9x=48(287)13x-11x=18(288)10x-5x=80(289)5.4x+4.4x=176.4(290)5.1x+0.4x=55(291)9.8x+9.5x=38.6(292)0.3x+3.1x=78.2(293)2.4x+5.7x=121.5(294)3.6x+7.7x=101.7(295)4.3x+1.5x=69.6(296)2.4x+1.4x=7.6(297)0.6x+3.4x=36(298)4.3x-1.5x=47.6(299)8.4x-4.6x=41.8(300)5.5x-2.3x=38.4(301)1.1x-0.9x=4.6(302)6.6x-3.7x=23.2(303)1.6x-0.5x=18.7(304)0.6x-0.4x=12.2(305)9.4x-8.4x=7(306)4x-1.2x=5.6(307)16x+10x+34=164(308)5x+13x+29=101(309)12x+7x+11=277(310)15x+14x+29=174(311)4x+17x+39=228(312)15x+14x+36=326(313)10x+5x+44=284(314)6x+2x+12=84(315)9x+6x+36=156(316)12x+8x-6=274(317)3x+2x-11=44(318)8x+9x-21=268(319)8x+16x-43=221(320)18x+11x-31=85(321)8x+9x-35=203(322)5x+12x-13=242(323)8x+6x-13=43(324)12x+10x-2=284(325)14x-11x+3=18(326)9x-6x+46=82(327)16x-14x+43=55(328)7x-5x+21=59(329)6x-3x+11=71(330)6x-4x+29=57(331)6x-3x+4=43(332)16x-7x+34=142(333)9x-3x+12=102(334)11x-2x-48=24(335)8x-5x-8=46(336)12x-4x-13=75(337)12x-8x-44=12(338)15x-9x-6=72(339)9x-4x-18=52(340)10x-5x-12=43(341)13x-4x-33=39(342)15x-9x-33=33(343)5.1x+5.9x+2.7=35.7(344)2.6x+7.4x+2.9=62.9(345)2.8x+2.7x+0.6=121.6(346)1.3x+3.4x+4.5=140.8(347)6.9x+1.7x+4.3=107.5(348)2.2x+0.9x+3=40.2(349)4.9x+6.8x+4.8=133.5(350)6.3x+6.8x+2.1=67.6(351)5.5x+4.5x+3.4=133.4(352)62x+66x+1.7=142.5(353)71x+6x+2.4=56.3(354)22x+4x+3.1=83.7(355)18x+12x+4.2=115.2(356)25x+5x+2.5=89.5(357)6x+7x+2.4=111.6(358)58x+9x+4.4=111.6(359)98x+52x+4.3=139.3(360)34x+51x+4.3=89.3(361)2.2x+0.3x-3.5=41.5(362)9x+7.3x-0.3=146.4(363)9.4x+3.9x-2=51.2(364)5.7x+2.7x-1.8=40.2(365)1.6x+7.5x-3.1=51.5(366)1x+1.3x-2.8=162.8(367)5.3x+7.7x-0.6=142.4(368)6.6x+1.9x-3.8=98.2(369)3.3x+7.1x-4.5=99.5(370)13x+2x-2.5=63.5(371)53x+5x-0.5=63.3(372)65x+99x-0.2=131(373)98x+3x-0.5=70.2(374)30x+18x-1.3=51.5(375)60x+50x-1.7=119.3(376)99x+60x-3.7=28.1(377)20x+21x-0.6=118.3(378)38x+44x-1.9=30.9(379)4x-2.1x+4.2=28.9(380)6.2x-4.9x+1.8=7(381)5.1x-4.3x+3.7=5.3(382)7.9x-0.6x+3.7=18.3(383)5.5x-3.3x+1.7=21.5(384)8.2x-5.6x+3=26.4(385)1.8x-1.1x+1.7=23.4(386)2.6x-0.4x+2.4=53(387)8x-5.7x+2.5=27.8(388)66x-43x+4.5=20.6(389)17x-6x+3.7=5.9(390)68x-51x+1=16.3(391)61x-10x+4.2=39.9(392)66x-28x+2.2=13.6(393)7x-5x+4.5=18.5(394)95x-38x+1.7=13.1(395)67x-3x+2.6=66.6(396)79x-34x+1.8=33.3(397)2.9x-2.2x-1.8=1.7(398)1.6x-0.5x-4.6=9.7(399)8.4x-3.9x-3.3=41.7(400)7.1x-2.3x-1.9=17.3(401)7x-0.9x-3.6=26.9(402)1.6x-0.9x-0.2=7.5(403)8.7x-2.7x-2.7=21.3(404)5x-2.8x-3.2=32(405)0.8x-0.6x-4.1=15.1(406)70x-52x-3.9=19.5(407)82x-39x-0.2=38.5(408)55x-12x-3.4=5.2(409)76x-37x-1.5=49.2(410)36x-3x-0.7=32.3(411)39x-8x-3=37.3(412)64x-12x-2=50(413)88x-18x-1=41(414)27x-22x-0.2=6.3(415)6x+43×4=304(416)2x+15×13=223(417)20x+5×22=150(418)14x+2×36=128(419)3x+26×5=208(420)5x+8×9=112(421)29x+3×41=210(422)18x+3×38=150(423)3x+7×17=290(424)9x-70×2=58(425)16x-12×5=116(426)29x-3×24=102(427)20x-23×3=51(428)14x-18×3=86(429)26x-9×14=56(430)7x-7×13=63(431)17x-6×14=103(432)12x-4×3=144(433)0.9x+0.8×11=26.8(434)0.3x+1.8×8=18.6(435)2.5x+2.4×8=31.7(436)4.6x+0.5×20=23.8(437)0.9x+4.8×2=22.2(438)2.6x+3.9×5=29.9(439)1.1x+0.5×8=20.5(440)1.6x+1.7×8=20(441)2.4x+0.3×44=30(442)3x+24×0.7=24.3(443)5x+11×1.8=31.8(444)5x+26×0.5=19.5(445)26x+5×2=28.2(446)6x+5×1.7=24.1(447)5x+39×0.2=12.3(448)8x+25×0.4=30(449)3x+4×3.7=18.4(450)6x+36×0.3=26.4(451)2.1x-3.6×2=11.7(452)1.5x-3.5×2=12.5(453)3x-0.2×24=10.2(454)1.3x-0.6×2=4(455)2.4x-0.2×11=2.6(456)0.5x-0.3×10=3.5(457)2.3x-0.5×24=1.8(458)0.4x-1.4×2=16(459)0.3x-0.4×2=3.4(460)31x-3×2=12.6(461)34x-15×0.7=6.5(462)3x-9×1.1=3.9(463)3x-9×0.2=3.9(464)40x-12×1=4(465)2x-12×0.3=1.2(466)3x-10×0.3=1.5(467)3x-3×2.8=1.5(468)9x-12×0.2=1.2(469)4(x+5)=152(470)2(2x+16)=160(471)4(x+16)=80(472)2(3x+7)=116(473)6(x+13)=192(474)25(x+3)=175(475)3(x+15)=99(476)5(2x+20)=180(477)2(12x+5)=106(478)3(x-5)=57(479)12(x-13)=144(480)3(7x-40)=153(481)7(4x-40)=168(482)4(26x-32)=184(483)5(20x-30)=50(484)2(4x-12)=96(485)10(16x-15)=170(486)2(6x-49)=142(487)2(0.5x+2.9)=27.8(488)2(0.4x+0.9)=9.8(489)3(2.6x+7.4)=37.8(490)2(0.9x+5.6)=43.6(491)7(0.3x+0.3)=8.4(492)3(0.6x+6.3)=36.9(493)2(1.2x+2.5)=33.8(494)5(0.6x+4.5)=49.5(495)2(1.6x+0.6)=36.4(496)4(7.1x-9.9)=45.6(497)4(2.9x-2.8)=23.6(498)4(3.2x-5)=44(499)29(x-9.4)=46.4(500)4(0.2x-2.7)=23.6(501)25(2x-8.3)=42.5(502)4(1.4x-6)=15.2(503)3(0.7x-7.1)=3.9(504)4(0.7x-0.3)=29.6(505)(12x+8)÷8=10(506)(4x+16)÷2=44(507)(9x+14)÷2=106(508)(19x+8)÷2=137(509)(16x+4)÷6=6(510)(x+42)÷20=3(511)(2x+49)÷7=9(512)(3x+14)÷5=13(513)(13x+21)÷2=121(514)(9x-36)÷9=14(515)(7x-14)÷49=3(516)(15x-9)÷12=3(517)(11x-45)÷3=29(518)(9x-21)÷17=12(519)(16x-24)÷2=36(520)(11x-12)÷5=24(521)(2x-35)÷15=1(522)(12x-16)÷2=88(523)(4.6x+3.6)÷28=2.1(524)(1.1x+4.7)÷3=4.5(525)(2.1x+3.6)÷6=6.2(526)(3.7x+6.1)÷27=0.5(527)(3.2x+6.4)÷34=1.6(528)(7.2x+1.8)÷2=11.7(529)(1.8x+3)÷2=9.6(530)(0.6x+3.3)÷15=0.3(531)(2.8x+8)÷22=2.4(532)(6.7x-0.3)÷31=2.8(533)(2.4x-9.8)÷2=16.7(534)(1.1x-8.5)÷3=1.2(535)(0.8x-6.6)÷11=0.2(536)(2.8x-5.4)÷2=8.5(537)(6.6x-4.2)÷4=13.8(538)(1.9x-8.3)÷2=12(539)(1.4x-1.6)÷18=1(540)(0.5x-6.1)÷12=0.2参考答案(1)x=94(2)x=83(3)x=91(4)x=78(5)x=71(6)x=19(7)x=35(8)x=36(9)x=40(10)x=97(11)x=69(12)x=34(13)x=78(14)x=95(15)x=83(16)x=28(17)x=53(18)x=95(19)x=0.8(20)x=9(21)x=5.6(22)x=7.5(23)x=9.2(24)x=8.9(25)x=4.9(26)x=1.2(27)x=3.9(28)x=4.2(29)x=7.1(30)x=7.1(31)x=8.8(32)x=8.1(33)x=9.4(34)x=6.4(35)x=7.5(36)x=3(37)x=38(38)x=24(39)x=35(40)x=66(41)x=75(42)x=48(43)x=84(44)x=14(45)x=76(46)x=5(47)x=20(48)x=49(49)x=16(50)x=52(51)x=4(52)x=24(53)x=11(54)x=24(55)x=8.3(56)x=6.6(57)x=4.9(58)x=3.9(59)x=2.3(60)x=5.5(61)x=9.7(62)x=7.6(63)x=9.2(64)x=4.8(65)x=3.4(66)x=1(67)x=3.5(68)x=2.1(69)x=0.9(70)x=7.5(71)x=1.4(72)x=2.4(73)x=90(74)x=7(75)x=21(76)x=25(77)x=2(78)x=14(79)x=29(80)x=4(81)x=35(82)x=49(83)x=8(84)x=3(85)x=2(86)x=18(87)x=15(88)x=10(89)x=22(90)x=3(91)x=6.5(92)x=3.7(93)x=3.8(94)x=6.6(95)x=2.2(96)x=0.5(97)x=3.9(98)x=5.9(99)x=0.6(100)x=33(101)x=17(102)x=4(103)x=16(104)x=9(105)x=15(106)x=13(107)x=36(108)x=30(109)x=17(110)x=5(111)x=3(112)x=3(113)x=2(114)x=6(115)x=10(116)x=11(117)x=9(118)x=108(119)x=138(120)x=18(121)x=162(122)x=68(123)x=92(124)x=124(125)x=48(126)x=99(127)x=2.7(128)x=12.5(129)x=13.4(130)x=15.6(131)x=4.5(132)x=9.2(133)x=11.2(134)x=15(135)x=7.6(136)x=3(137)x=46(138)x=17(139)x=49(140)x=10(141)x=3(142)x=2(143)x=34(144)x=38(145)x=22(146)x=3(147)x=10(148)x=6(149)x=48(150)x=4(151)x=92(152)x=2(153)x=38(154)x=0.6(155)x=2.2(156)x=1.1(157)x=6.6(158)x=0.3(159)x=0.6(160)x=0.8(161)x=2.1(162)x=1.2(163)x=40(164)x=8(165)x=4(166)x=14(167)x=2(168)x=31(169)x=10(170)x=47(171)x=4(172)x=0.6(173)x=9.2(174)x=0.2(175)x=1.3(176)x=0.6(177)x=0.2(178)x=0.5(179)x=1.7(180)x=2.2(181)x=3(182)x=60(183)x=96(184)x=6(185)x=63(186)x=13(187)x=5(188)x=2(189)x=2(190)x=23(191)x=4(192)x=2(193)x=36(194)x=19(195)x=72(196)x=33(197)x=16(198)x=6(199)x=8(200)x=3(201)x=3(202)x=7(203)x=19(204)x=61(205)x=35(206)x=3(207)x=5(208)x=5(209)x=33(210)x=5(211)x=62(212)x=7(213)x=11(214)x=2(215)x=27(216)x=5(217)x=0.4(218)x=5.2(219)x=0.2(220)x=0.3(221)x=0.8(222)x=0.2(223)x=5.2(224)x=0.6(225)x=0.4(226)x=3(227)x=6(228)x=3(229)x=29(230)x=17(231)x=2(232)x=47(233)x=4(234)x=2(235)x=0.7(236)x=0.2(237)x=6.5(238)x=2.2(239)x=0.8(240)x=0.4(241)x=0.2(242)x=0.9(243)x=0.6(244)x=6(245)x=8(246)x=3(247)x=2(248)x=2(249)x=9(250)x=24(251)x=14(252)x=16(253)x=60(254)x=48(255)x=55(256)x=66(257)x=2(258)x=2(259)x=2(260)x=3(261)x=3(262)x=0.9(263)x=2.4(264)x=0.2(265)x=1.2(266)x=1.8(267)x=0.4(268)x=1.8(269)x=2(270)x=7.8(271)x=2(272)x=10(273)x=11(274)x=5(275)x=15(276)x=4(277)x=9(278)x=12(279)x=28(280)x=9(281)x=5(282)x=5(283)x=12(284)x=9(285)x=5(286)x=8(287)x=9(288)x=16(289)x=18(290)x=10(291)x=2(292)x=23(293)x=15(294)x=9(295)x=12(296)x=2(297)x=9(298)x=17(299)x=11(300)x=12(301)x=23(302)x=8(303)x=17(304)x=61(305)x=7(306)x=2(307)x=5(308)x=4(309)x=14(310)x=5(311)x=9(312)x=10(313)x=16(314)x=9(315)x=8(316)x=14(317)x=11(318)x=17(319)x=11(320)x=4(321)x=14(322)x=15(323)x=4(324)x=13(325)x=5(326)x=12(327)x=6(328)x=19(329)x=20(330)x=14(331)x=13(332)x=12(333)x=15(334)x=8(335)x=18(336)x=11(337)x=14(338)x=13(339)x=14(340)x=11(341)x=8(342)x=11(343)x=3(344)x=6(345)x=22(346)x=29(347)x=12(348)x=12(349)x=11(350)x=5(351)x=13(352)x=1.1(353)x=0.7(354)x=3.1(355)x=3.7(356)x=2.9(357)x=8.4(358)x=1.6(359)x=0.9(360)x=1(361)x=18(362)x=9(363)x=4(364)x=5(365)x=6(366)x=72(367)x=11(368)x=12(369)x=10(370)x=4.4(371)x=1.1(372)x=0.8(373)x=0.7(374)x=1.1(375)x=1.1(376)x=0.2(377)x=2.9(378)x=0.4(379)x=13(380)x=4(381)x=2(382)x=2(383)x=9(384)x=9(385)x=31(386)x=23(387)x=11(388)x=0.7(389)x=0.2(390)x=0.9(391)x=0.7(392)x