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+41=124(2)x+74=153(3)x+78=106(4)x+89=188(5)x+91=167(6)x+17=31(7)x+47=57(8)x+38=121(9)x+73=155(10)x-61=30(11)x-36=22(12)x-63=17(13)x-55=27(14)x-58=24(15)x-26=57(16)x-21=19(17)x-29=50(18)x-27=67(19)x+7.4=14.6(20)x+7.5=12.7(21)x+5.9=14.8(22)x+5.1=6.2(23)x+0.2=8.5(24)x+8.1=14.2(25)x+2.7=3.5(26)x+7.3=13.9(27)x+6.1=13.5(28)x-2=3.3(29)x-3.5=4.6(30)x-1.1=1.8(31)x-4.1=4.9(32)x-4.3=4.1(33)x-4.4=3.5(34)x-2.3=4.3(35)x-0.2=4(36)x-1.9=6.9(37)54+x=83(38)24+x=54(39)63+x=122(40)38+x=63(41)10+x=64(42)96+x=157(43)38+x=61(44)56+x=126(45)17+x=68(46)93-x=79(47)93-x=76(48)66-x=54(49)28-x=18(50)61-x=40(51)48-x=19(52)92-x=87(53)95-x=11(54)73-x=68(55)9.4+x=9.6(56)7.9+x=9.7(57)6.4+x=8.7(58)6.9+x=14.4(59)6.3+x=6.6(60)6.7+x=11.6(61)8.8+x=17.1(62)3.6+x=10.3(63)7.8+x=9.9(64)6.6-x=4.1(65)5.2-x=2.7(66)2.9-x=2(67)4.8-x=1.1(68)7.3-x=5.3(69)9.4-x=8.2(70)5.9-x=3.7(71)9.1-x=8.4(72)5.4-x=4.9(73)58x=174(74)8x=64(75)2x=18(76)14x=84(77)56x=168(78)27x=54(79)49x=147(80)5x=115(81)19x=57(82)0.4x=15.2(83)0.7x=2.1(84)0.4x=4.8(85)0.4x=17.6(86)0.2x=6.8(87)0.9x=18(88)3.7x=7.4(89)0.8x=16.8(90)0.4x=6.8(91)16x=19.2(92)2x=0.8(93)7x=19.6(94)2x=1.4(95)2x=16.8(96)4x=10.8(97)10x=9(98)19x=9.5(99)2x=18.2(100)136÷x=34(101)84÷x=14(102)170÷x=17(103)30÷x=2(104)96÷x=2(105)196÷x=28(106)18÷x=9(107)36÷x=4(108)140÷x=35(109)12.5÷x=0.5(110)2÷x=0.2(111)6.6÷x=0.6(112)17÷x=1(113)2.4÷x=1.2(114)6.2÷x=0.2(115)13÷x=0.5(116)12.3÷x=4.1(117)14.8÷x=0.2(118)x÷17=10(119)x÷3=27(120)x÷5=16(121)x÷9=20(122)x÷63=3(123)x÷4=12(124)x÷6=11(125)x÷29=3(126)x÷17=8(127)x÷30=0.5(128)x÷6=1.3(129)x÷22=0.3(130)x÷9=1.9(131)x÷10=0.8(132)x÷98=0.2(133)x÷77=0.2(134)x÷59=0.2(135)x÷73=0.2(136)3x+51=189(137)5x+35=75(138)49x+34=230(139)3x+29=83(140)8x+52=92(141)6x+11=29(142)47x+27=121(143)18x+59=131(144)32x+10=106(145)13x-31=47(146)9x-19=62(147)3x-19=32(148)89x-59=119(149)56x-41=71(150)36x-32=148(151)39x-27=90(152)21x-21=84(153)2x-23=41(154)2x+3.6=13.6(155)3x+3=18.9(156)3x+4.1=15.5(157)15x+3.3=10.8(158)4x+3.4=18.2(159)7x+1.2=10.3(160)67x+1.8=15.2(161)96x+1.5=20.7(162)2x+2.6=6.2(163)3.1x+2.8=9(164)0.5x+4.4=12.9(165)1.4x+3=22.6(166)3.3x+1.6=14.8(167)1.8x+2=7.4(168)0.8x+2.3=7.9(169)7x+5.4=19.4(170)0.2x+2.9=3.5(171)1.8x+4.4=15.2(172)12x-5.2=8(173)55x-5.5=5.5(174)10x-1.6=5.4(175)5x-1.1=7.9(176)2x-2.2=17.8(177)14x-3.5=11.9(178)4x-5.2=7.6(179)2x-3.6=4.8(180)4x-1.9=15.3(181)6x-3.6=8.4(182)4.8x-2.5=16.7(183)3.7x-3.5=7.6(184)0.7x-4.4=7.5(185)0.2x-5.1=7.7(186)6.3x-2.7=9.9(187)0.3x-2.6=3.7(188)0.4x-1.6=17.2(189)6.5x-1.5=11.5(190)139+9x=238(191)77+8x=125(192)57+6x=213(193)87+2x=119(194)158+31x=313(195)42+7x=182(196)75+4x=239(197)184+12x=232(198)58+76x=210(199)107-2x=15(200)110-13x=58(201)100-6x=10(202)179-2x=97(203)159-64x=31(204)110-3x=65(205)195-15x=15(206)138-6x=30(207)162-12x=90(208)17.5+0.6x=35.5(209)9.4+0.2x=22(210)13+1.9x=16.8(211)14.6+1.4x=21.6(212)19.8+3.2x=32.6(213)8.4+1.2x=21.6(214)10.3+2.5x=17.8(215)7.1+1.7x=12.2(216)16.8+1.2x=28.8(217)1.6+73x=16.2(218)12.8+2x=18(219)9.2+14x=16.2(220)7.6+92x=26(221)9.1+3x=18.1(222)5.8+6x=20.2(223)6.9+21x=13.2(224)14.3+22x=31.9(225)9.8+18x=26(226)9.9-3.1x=3.7(227)6.8-0.3x=4.4(228)5.7-0.9x=2.1(229)13.7-1.9x=2.3(230)15.1-0.5x=14.1(231)17.6-1.9x=6.2(232)10-0.8x=8.4(233)12.1-0.3x=5.5(234)18.8-5.6x=7.6(235)16.4-9x=5.6(236)9.9-8x=8.3(237)18.7-3x=9.4(238)9.3-39x=1.5(239)19.6-10x=16.6(240)17.4-46x=3.6(241)11.5-11x=9.3(242)18.4-47x=4.3(243)18.5-7x=13.6(244)40x÷4=30(245)3x÷36=4(246)70x÷7=20(247)22x÷16=11(248)11x÷22=9(249)2x÷6=21(250)33x÷66=3(251)54x÷27=6(252)14x÷2=35(253)1.2x÷39=0.4(254)0.7x÷98=0.2(255)0.4x÷6=1.6(256)0.3x÷2=1.8(257)0.7x÷21=0.9(258)0.9x÷18=1(259)6.3x÷14=0.9(260)0.3x÷7=2.7(261)0.3x÷4=3.9(262)11x÷3=4.4(263)8x÷42=0.4(264)45x÷5=3.6(265)24x÷3=4(266)9x÷6=3(267)39x÷6=1.3(268)2x÷8=1.1(269)4x÷48=0.3(270)3x÷4=1.2(271)2x+6x=192(272)10x+13x=46(273)16x+6x=220(274)12x+3x=225(275)3x+10x=52(276)8x+7x=45(277)5x+10x=240(278)9x+13x=88(279)4x+6x=250(280)17x-13x=36(281)17x-8x=18(282)17x-2x=150(283)17x-3x=70(284)19x-7x=96(285)10x-8x=38(286)14x-8x=18(287)15x-6x=45(288)19x-3x=144(289)4.2x+7.9x=72.6(290)0.6x+1.6x=37.4(291)2.5x+2.3x=177.6(292)2.1x+7.1x=55.2(293)7.6x+5.3x=167.7(294)3.3x+2.9x=155(295)6.7x+4.8x=46(296)3.2x+8.1x=113(297)8.8x+7.7x=49.5(298)2.7x-1x=62.9(299)3.1x-1.3x=28.8(300)9.1x-8.7x=1.2(301)5.2x-3.2x=12(302)5.7x-1.9x=22.8(303)9.2x-5.2x=16(304)4.1x-0.2x=81.9(305)5.8x-5.2x=10.2(306)5.8x-2.6x=28.8(307)2x+15x+31=184(308)6x+4x+4=34(309)3x+4x+13=97(310)11x+3x+38=178(311)6x+8x+35=105(312)18x+9x+39=309(313)4x+13x+9=179(314)15x+11x+40=144(315)15x+17x+21=213(316)15x+8x-47=91(317)5x+3x-24=248(318)5x+15x-38=202(319)3x+4x-17=88(320)18x+19x-43=290(321)4x+15x-33=157(322)12x+15x-34=209(323)14x+6x-37=183(324)12x+17x-39=164(325)17x-2x+16=121(326)13x-11x+16=32(327)19x-15x+12=32(328)12x-4x+25=41(329)16x-11x+5=50(330)9x-3x+30=138(331)11x-5x+28=76(332)10x-6x+48=96(333)10x-5x+48=63(334)17x-8x-26=73(335)7x-2x-43=72(336)11x-2x-7=137(337)8x-3x-28=47(338)16x-6x-49=71(339)17x-7x-33=17(340)9x-3x-5=43(341)9x-4x-42=28(342)14x-4x-24=76(343)1.6x+6.9x+3.2=71.2(344)3.8x+4.5x+3.1=19.7(345)1.5x+3.6x+0.5=26(346)2.9x+0.2x+2.7=108.1(347)1.5x+1.3x+4.7=178.3(348)9.5x+4.4x+0.3=83.7(349)8.6x+4.5x+2.6=120.5(350)4.3x+8.8x+3.9=82.5(351)3.5x+2.3x+0.9=18.3(352)26x+6x+4.1=58.5(353)29x+27x+2=142(354)77x+19x+4=71.2(355)78x+92x+0.3=119.3(356)16x+3x+2.2=34.5(357)45x+29x+1.4=45.8(358)24x+26x+4.2=189.2(359)53x+23x+4.8=96(360)2x+13x+4=83.5(361)5.4x+0.6x-4=74(362)6.2x+8.1x-4=81.8(363)1.1x+0.6x-2.8=85.6(364)8.3x+2.5x-3=18.6(365)4.6x+3x-0.4=22.4(366)4.3x+3.1x-0.5=140.1(367)1.5x+5x-2.5=17(368)2.2x+8x-3.7=108.5(369)3.6x+3x-3.8=9.4(370)25x+75x-1.7=118.3(371)38x+32x-1.3=138.7(372)41x+50x-2.4=161.4(373)58x+35x-0.9=129.3(374)46x+42x-3.8=49(375)9x+63x-1.9=55.7(376)91x+69x-4=60(377)11x+21x-3.2=12.8(378)55x+69x-3.2=96(379)2.2x-0.8x+3.4=23(380)2.7x-0.8x+0.9=44.6(381)6.5x-2.7x+0.6=50(382)0.9x-0.4x+4=50.5(383)6.4x-1.1x+4.4=20.3(384)5.3x-0.6x+1.8=72.3(385)1.6x-0.4x+4.4=14(386)4.5x-4.1x+1=9.4(387)8.8x-6.2x+3.4=8.6(388)90x-50x+3.8=23.8(389)61x-12x+1.4=74.9(390)66x-22x+1.1=36.3(391)60x-40x+4.3=18.3(392)95x-66x+1.4=27.5(393)45x-38x+0.3=5.2(394)27x-9x+0.6=52.8(395)63x-43x+1.8=5.8(396)60x-13x+1.7=76.9(397)5.5x-3.5x-2=6(398)0.8x-0.5x-3.7=16.7(399)3.9x-2.8x-3.1=20(400)6.2x-4.6x-1.8=14.2(401)1.9x-0.6x-2.9=60.8(402)6.6x-4x-1=17.2(403)3.4x-2.5x-0.3=24(404)7.9x-5x-3.8=28.1(405)5.2x-3.6x-2.5=16.7(406)87x-66x-3.4=13.4(407)86x-62x-2.9=16.3(408)97x-4x-1.7=72.7(409)65x-8x-4.4=46.9(410)60x-46x-4.1=2.9(411)67x-45x-0.3=15.1(412)33x-29x-0.7=4.1(413)23x-5x-3.3=14.7(414)85x-28x-1.5=61.2(415)4x+2×36=236(416)24x+8×22=296(417)2x+3×51=259(418)3x+2×98=304(419)15x+2×46=122(420)4x+6×30=368(421)2x+50×4=374(422)12x+3×66=234(423)6x+10×6=198(424)17x-28×2=131(425)9x-6×5=141(426)17x-10×12=16(427)15x-5×21=60(428)4x-4×32=28(429)9x-2×6=15(430)4x-77×2=38(431)4x-4×19=28(432)4x-72×2=28(433)0.9x+0.3×24=9.9(434)0.7x+4×5=37.5(435)0.2x+1.2×8=14.2(436)1x+0.3×48=25.4(437)2.7x+1.1×14=23.5(438)1.5x+4×2=12.5(439)1x+0.5×19=16.5(440)0.9x+1×7=10.6(441)1.2x+2×2=22(442)35x+25×0.8=30.5(443)13x+48×0.3=18.3(444)15x+38×0.2=27.1(445)2x+3×1.3=12.3(446)17x+25×0.5=22.7(447)4x+8×1.3=20(448)5x+17×1.1=36.2(449)2x+18×1.1=26.8(450)17x+5×1.9=19.7(451)1.7x-0.3×45=3.5(452)4.8x-1.2×7=6(453)1.6x-0.5×22=5(454)2.1x-0.6×18=3.9(455)3.6x-1.2×5=4.8(456)3.6x-0.2×5=17(457)0.5x-1.5×7=8(458)4.3x-0.4×15=2.6(459)0.5x-0.5×23=4(460)6x-3×4.1=5.7(461)37x-6×0.4=16.1(462)5x-10×0.3=8(463)17x-18×0.6=7.9(464)4x-3×0.6=11.4(465)12x-2×3.7=11.8(466)2x-2×0.7=4.2(467)19x-7×0.8=11.5(468)13x-6×1.3=1.3(469)5(x+27)=175(470)2(19x+38)=190(471)2(2x+14)=52(472)3(10x+9)=117(473)2(6x+6)=96(474)3(4x+6)=174(475)2(3x+18)=150(476)2(17x+10)=88(477)7(x+10)=133(478)2(8x-41)=190(479)5(11x-28)=190(480)2(3x-27)=186(481)3(7x-9)=120(482)3(18x-42)=198(483)4(2x-2)=80(484)2(26x-18)=172(485)3(4x-21)=57(486)3(3x-8)=183(487)2(1.4x+4)=47.2(488)2(3.8x+4.4)=39.2(489)2(4.1x+2.3)=45.6(490)4(0.5x+8)=42(491)6(0.5x+2.7)=25.2(492)2(5.2x+5)=41.2(493)6(0.2x+2.5)=24.6(494)2(7.1x+2.7)=33.8(495)2(2.7x+6.5)=40(496)2(3.7x-9.3)=18.4(497)10(3.3x-7.7)=22(498)20(5.7x-9.1)=46(499)6(3.1x-7)=13.8(500)2(9.5x-4.8)=47.4(501)2(6.9x-8.4)=24.6(502)9(0.4x-9.9)=18.9(503)6(x-4.1)=47.4(504)4(0.3x-5.7)=16.8(505)(12x+46)÷22=13(506)(3x+3)÷15=6(507)(14x+35)÷49=3(508)(12x+23)÷11=13(509)(7x+5)÷10=4(510)(x+43)÷8=6(511)(3x+3)÷5=9(512)(15x+40)÷5=53(513)(4x+20)÷26=2(514)(6x-24)÷4=36(515)(7x-3)÷2=51(516)(9x-15)÷8=6(517)(16x-38)÷5=50(518)(3x-18)÷22=3(519)(12x-48)÷4=21(520)(7x-45)÷16=2(521)(9x-3)÷5=12(522)(16x-45)÷33=3(523)(8.2x+9.6)÷4=18.8(524)(3.5x+3.7)÷22=1.6(525)(4.4x+6.2)÷3=18.2(526)(7.8x+8.8)÷8=5(527)(6.7x+2.7)÷3=7.6(528)(4.5x+8.2)÷8=8.9(529)(5.8x+1.7)÷3=31.5(530)(5.9x+7.2)÷14=2.2(531)(7x+7.6)÷4=19.4(532)(2.9x-0.8)÷9=1.2(533)(7.7x-6)÷3=5.7(534)(4.9x-2.6)÷3=7.3(535)(0.8x-1.6)÷8=0.4(536)(2.1x-0.6)÷6=2(537)(5.5x-4.9)÷7=4.8(538)(x-5.9)÷3=1.7(539)(5.7x-6.3)÷36=0.3(540)(9x-1.2)÷37=2.4参考答案(1)x=83(2)x=79(3)x=28(4)x=99(5)x=76(6)x=14(7)x=10(8)x=83(9)x=82(10)x=91(11)x=58(12)x=80(13)x=82(14)x=82(15)x=83(16)x=40(17)x=79(18)x=94(19)x=7.2(20)x=5.2(21)x=8.9(22)x=1.1(23)x=8.3(24)x=6.1(25)x=0.8(26)x=6.6(27)x=7.4(28)x=5.3(29)x=8.1(30)x=2.9(31)x=9(32)x=8.4(33)x=7.9(34)x=6.6(35)x=4.2(36)x=8.8(37)x=29(38)x=30(39)x=59(40)x=25(41)x=54(42)x=61(43)x=23(44)x=70(45)x=51(46)x=14(47)x=17(48)x=12(49)x=10(50)x=21(51)x=29(52)x=5(53)x=84(54)x=5(55)x=0.2(56)x=1.8(57)x=2.3(58)x=7.5(59)x=0.3(60)x=4.9(61)x=8.3(62)x=6.7(63)x=2.1(64)x=2.5(65)x=2.5(66)x=0.9(67)x=3.7(68)x=2(69)x=1.2(70)x=2.2(71)x=0.7(72)x=0.5(73)x=3(74)x=8(75)x=9(76)x=6(77)x=3(78)x=2(79)x=3(80)x=23(81)x=3(82)x=38(83)x=3(84)x=12(85)x=44(86)x=34(87)x=20(88)x=2(89)x=21(90)x=17(91)x=1.2(92)x=0.4(93)x=2.8(94)x=0.7(95)x=8.4(96)x=2.7(97)x=0.9(98)x=0.5(99)x=9.1(100)x=4(101)x=6(102)x=10(103)x=15(104)x=48(105)x=7(106)x=2(107)x=9(108)x=4(109)x=25(110)x=10(111)x=11(112)x=17(113)x=2(114)x=31(115)x=26(116)x=3(117)x=74(118)x=170(119)x=81(120)x=80(121)x=180(122)x=189(123)x=48(124)x=66(125)x=87(126)x=136(127)x=15(128)x=7.8(129)x=6.6(130)x=17.1(131)x=8(132)x=19.6(133)x=15.4(134)x=11.8(135)x=14.6(136)x=46(137)x=8(138)x=4(139)x=18(140)x=5(141)x=3(142)x=2(143)x=4(144)x=3(145)x=6(146)x=9(147)x=17(148)x=2(149)x=2(150)x=5(151)x=3(152)x=5(153)x=32(154)x=5(155)x=5.3(156)x=3.8(157)x=0.5(158)x=3.7(159)x=1.3(160)x=0.2(161)x=0.2(162)x=1.8(163)x=2(164)x=17(165)x=14(166)x=4(167)x=3(168)x=7(169)x=2(170)x=3(171)x=6(172)x=1.1(173)x=0.2(174)x=0.7(175)x=1.8(176)x=10(177)x=1.1(178)x=3.2(179)x=4.2(180)x=4.3(181)x=2(182)x=4(183)x=3(184)x=17(185)x=64(186)x=2(187)x=21(188)x=47(189)x=2(190)x=11(191)x=6(192)x=26(193)x=16(194)x=5(195)x=20(196)x=41(197)x=4(198)x=2(199)x=46(200)x=4(201)x=15(202)x=41(203)x=2(204)x=15(205)x=12(206)x=18(207)x=6(208)x=30(209)x=63(210)x=2(211)x=5(212)x=4(213)x=11(214)x=3(215)x=3(216)x=10(217)x=0.2(218)x=2.6(219)x=0.5(220)x=0.2(221)x=3(222)x=2.4(223)x=0.3(224)x=0.8(225)x=0.9(226)x=2(227)x=8(228)x=4(229)x=6(230)x=2(231)x=6(232)x=2(233)x=22(234)x=2(235)x=1.2(236)x=0.2(237)x=3.1(238)x=0.2(239)x=0.3(240)x=0.3(241)x=0.2(242)x=0.3(243)x=0.7(244)x=3(245)x=48(246)x=2(247)x=8(248)x=18(249)x=63(250)x=6(251)x=3(252)x=5(253)x=13(254)x=28(255)x=24(256)x=12(257)x=27(258)x=20(259)x=2(260)x=63(261)x=52(262)x=1.2(263)x=2.1(264)x=0.4(265)x=0.5(266)x=2(267)x=0.2(268)x=4.4(269)x=3.6(270)x=1.6(271)x=24(272)x=2(273)x=10(274)x=15(275)x=4(276)x=3(277)x=16(278)x=4(279)x=25(280)x=9(281)x=2(282)x=10(283)x=5(284)x=8(285)x=19(286)x=3(287)x=5(288)x=9(289)x=6(290)x=17(291)x=37(292)x=6(293)x=13(294)x=25(295)x=4(296)x=10(297)x=3(298)x=37(299)x=16(300)x=3(301)x=6(302)x=6(303)x=4(304)x=21(305)x=17(306)x=9(307)x=9(308)x=3(309)x=12(310)x=10(311)x=5(312)x=10(313)x=10(314)x=4(315)x=6(316)x=6(317)x=34(318)x=12(319)x=15(320)x=9(321)x=10(322)x=9(323)x=11(324)x=7(325)x=7(326)x=8(327)x=5(328)x=2(329)x=9(330)x=18(331)x=8(332)x=12(333)x=3(334)x=11(335)x=23(336)x=16(337)x=15(338)x=12(339)x=5(340)x=8(341)x=14(342)x=10(343)x=8(344)x=2(345)x=5(346)x=34(347)x=62(348)x=6(349)x=9(350)x=6(351)x=3(352)x=1.7(353)x=2.5(354)x=0.7(355)x=0.7(356)x=1.7(357)x=0.6(358)x=3.7(359)x=1.2(360)x=5.3(361)x=13(362)x=6(363)x=52(364)x=2(365)x=3(366)x=19(367)x=3(368)x=11(369)x=2(370)x=1.2(371)x=2(372)x=1.8(373)x=1.4(374)x=0.6(375)x=0.8(376)x=0.4(377)x=0.5(378)x=0.8(379)x=14(380)x=23(381)x=13(382)x=93(383)x=3(384)x=15(385)x=8(386)x=21(387)x=2(388)x=0.5(389)x=1.5(390)x=0.8(391)x=0.7(392