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+28=50(2)x+16=48(3)x+69=111(4)x+23=99(5)x+61=126(6)x+48=127(7)x+96=184(8)x+95=107(9)x+28=93(10)x-24=20(11)x-8=38(12)x-58=23(13)x-57=24(14)x-10=40(15)x-45=43(16)x-59=40(17)x-7=82(18)x-10=23(19)x+6.2=12.9(20)x+3.3=11.6(21)x+2.5=3.1(22)x+9.8=18.6(23)x+0.6=2.4(24)x+4.4=10.1(25)x+6.3=6.7(26)x+8.6=12.6(27)x+3=5.1(28)x-1.4=3.7(29)x-0.4=4.3(30)x-1.8=6.3(31)x-1.9=1.7(32)x-2.1=5.9(33)x-0.8=8.9(34)x-7.8=1.4(35)x-0.3=1.3(36)x-0.6=3.1(37)98+x=182(38)11+x=97(39)77+x=131(40)21+x=73(41)29+x=86(42)76+x=111(43)82+x=129(44)23+x=99(45)37+x=132(46)32-x=14(47)42-x=28(48)88-x=81(49)80-x=19(50)92-x=71(51)76-x=66(52)90-x=49(53)94-x=37(54)61-x=54(55)8.5+x=11.6(56)9.2+x=14.7(57)7.5+x=11.3(58)6.1+x=7.6(59)8.6+x=13.8(60)3.9+x=6.2(61)7.8+x=13.1(62)1.4+x=7.5(63)2.5+x=11.5(64)4.7-x=4.4(65)5.9-x=2.2(66)2.4-x=1.2(67)5.9-x=1.7(68)9.6-x=4.4(69)6.3-x=2.7(70)8.4-x=2.9(71)4.8-x=1.1(72)7.4-x=3.4(73)11x=77(74)40x=160(75)7x=77(76)20x=100(77)6x=18(78)45x=180(79)4x=44(80)2x=124(81)84x=168(82)1.2x=9.6(83)0.2x=4(84)0.3x=2.1(85)0.8x=1.6(86)0.7x=16.1(87)2.1x=10.5(88)0.2x=16.4(89)0.4x=10.8(90)3.2x=16(91)2x=13.2(92)36x=14.4(93)27x=18.9(94)5x=12(95)37x=11.1(96)37x=14.8(97)3x=6(98)26x=7.8(99)2x=18(100)118÷x=2(101)189÷x=9(102)165÷x=3(103)162÷x=18(104)72÷x=18(105)168÷x=21(106)140÷x=14(107)147÷x=49(108)182÷x=13(109)11.2÷x=1.6(110)5.2÷x=1.3(111)11.2÷x=1.4(112)18÷x=1.8(113)6.3÷x=0.9(114)14÷x=3.5(115)15.3÷x=0.3(116)10.4÷x=0.8(117)16.4÷x=4.1(118)x÷45=4(119)x÷3=41(120)x÷22=7(121)x÷7=26(122)x÷5=22(123)x÷10=14(124)x÷35=2(125)x÷79=2(126)x÷9=4(127)x÷11=1.7(128)x÷14=0.5(129)x÷24=0.5(130)x÷14=0.2(131)x÷27=0.5(132)x÷9=1.7(133)x÷8=1.2(134)x÷22=0.2(135)x÷98=0.2(136)2x+54=244(137)11x+53=185(138)8x+58=146(139)5x+41=206(140)3x+54=198(141)9x+18=189(142)33x+40=139(143)4x+16=148(144)10x+50=200(145)4x-13=11(146)9x-10=125(147)2x-16=48(148)19x-14=176(149)2x-35=117(150)4x-32=56(151)8x-57=95(152)2x-36=56(153)17x-15=121(154)12x+3=12.6(155)38x+3.3=18.5(156)30x+4.4=19.4(157)3x+3.7=22(158)4x+4.8=9.6(159)17x+5=8.4(160)11x+3=22.8(161)12x+4.8=22.8(162)12x+2.9=18.5(163)9.5x+3.7=22.7(164)0.4x+2.4=4.8(165)2.5x+2.7=22.7(166)3.1x+3.2=15.6(167)0.2x+1.4=5.8(168)1.1x+4.8=8.1(169)0.3x+2.9=4.7(170)0.3x+3.4=13.9(171)0.2x+2.8=13.6(172)5x-3.3=5.2(173)11x-4.2=12.3(174)16x-2.7=10.1(175)4x-1.7=10.3(176)63x-2.9=16(177)3x-5.4=12.3(178)56x-3.9=7.3(179)31x-3.7=14.9(180)9x-5.9=5.8(181)2.2x-3.5=7.5(182)1.7x-1.3=3.8(183)0.8x-3.6=6(184)0.3x-4.3=6.8(185)5.5x-3.4=7.6(186)4.1x-1.5=10.8(187)6.3x-3.7=8.9(188)0.4x-3.4=4.2(189)0.8x-2.9=13.1(190)148+2x=290(191)52+6x=208(192)33+7x=75(193)41+3x=53(194)153+18x=225(195)54+3x=60(196)80+29x=225(197)197+2x=347(198)48+2x=80(199)151-18x=97(200)159-4x=123(201)138-7x=61(202)178-13x=22(203)161-43x=32(204)124-3x=109(205)132-17x=81(206)176-8x=104(207)173-74x=25(208)17.9+0.4x=22.7(209)18+0.2x=29.2(210)14.4+0.7x=19.3(211)12.3+0.5x=29.8(212)13.7+1.2x=22.1(213)7.9+0.3x=25.3(214)3.1+2.9x=11.8(215)16.4+1.8x=21.8(216)6.5+0.6x=19.7(217)12.3+6x=18.3(218)9.3+6x=27.3(219)6+3x=16.8(220)13+4x=27.4(221)18.5+99x=38.3(222)9.6+9x=14.1(223)10+2x=24.2(224)12+2x=32(225)2.5+21x=21.4(226)18.2-0.8x=16.6(227)14.3-4.3x=5.7(228)13.8-0.2x=4(229)7.2-0.3x=1.8(230)9.9-2.4x=2.7(231)13.8-2.2x=7.2(232)11.9-1.4x=3.5(233)16.8-1x=3.8(234)16.9-3.9x=1.3(235)15-2x=6.6(236)19.2-4x=12.8(237)19.1-10x=7.1(238)18.8-3x=8.3(239)13.3-4x=2.5(240)13.7-45x=4.7(241)10.8-23x=3.9(242)19.4-2x=7.8(243)19.1-25x=9.1(244)5x÷4=15(245)21x÷14=12(246)36x÷12=12(247)2x÷25=6(248)48x÷12=12(249)60x÷6=30(250)4x÷17=8(251)16x÷4=40(252)16x÷5=32(253)0.6x÷18=0.5(254)3.2x÷24=0.8(255)0.4x÷6=0.6(256)1.5x÷20=0.3(257)2.2x÷3=4.4(258)2.1x÷7=1.5(259)4x÷16=1(260)5.4x÷81=0.2(261)1.5x÷6=1(262)10x÷95=0.2(263)4x÷10=0.8(264)2x÷9=1.2(265)50x÷25=0.8(266)84x÷28=0.6(267)6x÷3=2.8(268)6x÷18=0.7(269)15x÷5=1.8(270)4x÷3=2.4(271)3x+6x=252(272)17x+3x=100(273)15x+17x=64(274)6x+12x=162(275)15x+14x=174(276)19x+9x=140(277)9x+6x=30(278)8x+9x=289(279)5x+15x=220(280)19x-15x=40(281)14x-8x=36(282)6x-4x=30(283)8x-3x=55(284)12x-10x=28(285)8x-5x=69(286)17x-14x=15(287)13x-10x=21(288)19x-2x=51(289)6.5x+2.4x=26.7(290)0.2x+4.3x=45(291)3x+6.4x=37.6(292)4.5x+7.1x=92.8(293)4.7x+5.2x=19.8(294)1.8x+5.4x=64.8(295)5.9x+2.5x=92.4(296)0.9x+0.3x=55.2(297)1.2x+0.9x=39.9(298)4.7x-3x=27.2(299)7x-3.5x=28(300)8.4x-0.7x=23.1(301)6.7x-1.7x=30(302)7.3x-2.3x=25(303)8.3x-2.6x=62.7(304)3.8x-0.9x=17.4(305)4.8x-2.7x=6.3(306)3.7x-1.8x=32.3(307)11x+6x+15=83(308)19x+8x+42=312(309)13x+8x+38=122(310)8x+2x+25=245(311)6x+7x+9=217(312)16x+11x+18=126(313)11x+17x+33=285(314)15x+9x+21=93(315)14x+2x+18=146(316)2x+3x-17=83(317)9x+10x-13=101(318)9x+10x-8=68(319)9x+4x-45=176(320)16x+9x-9=191(321)2x+14x-13=131(322)3x+4x-30=306(323)6x+3x-31=230(324)2x+3x-36=194(325)17x-12x+16=61(326)17x-5x+26=98(327)11x-7x+31=83(328)12x-6x+13=67(329)10x-2x+10=114(330)15x-6x+32=140(331)8x-2x+33=63(332)15x-9x+9=21(333)7x-2x+28=68(334)15x-6x-15=84(335)7x-2x-16=54(336)9x-3x-20=22(337)15x-5x-12=28(338)9x-2x-46=80(339)9x-3x-2=130(340)15x-6x-7=101(341)17x-8x-18=72(342)5x-3x-43=11(343)0.5x+7.4x+1.2=80.2(344)3.7x+3.9x+1.4=107.8(345)7.5x+8.8x+4.1=69.3(346)4.6x+5.9x+1=158.5(347)8.9x+2.7x+4.7=39.5(348)9x+6.6x+3.1=65.5(349)0.9x+0.2x+3.6=37.7(350)7.6x+2.6x+1.6=22(351)6.6x+5.1x+2.6=107.9(352)13x+98x+2.3=91.1(353)68x+99x+4.5=171.5(354)51x+50x+2=193.9(355)35x+5x+4.4=76.4(356)73x+67x+1.3=127.3(357)35x+25x+1.6=67.6(358)93x+63x+0.6=94.2(359)53x+54x+0.5=96.8(360)42x+23x+2.3=34.8(361)3.4x+9.7x-2.3=128.7(362)2.4x+8.8x-0.7=100.1(363)6.4x+1.7x-1.4=95.8(364)6.7x+7.1x-1.9=149.9(365)1.3x+5.2x-3=49(366)2.4x+3.7x-0.8=60.2(367)6.6x+5.3x-0.5=82.8(368)7.2x+6.6x-0.7=151.1(369)2.7x+8.7x-0.5=90.7(370)2x+15x-2.4=57.1(371)3x+56x-2.3=27.2(372)47x+8x-3.4=7.6(373)97x+47x-1.5=41.7(374)73x+41x-2.9=65.5(375)52x+18x-4.3=79.7(376)16x+28x-1.8=11.4(377)57x+67x-2.2=47.4(378)48x+89x-4.3=64.2(379)4.1x-3.4x+2.5=19.3(380)5.3x-4.9x+4.7=8.7(381)1.6x-0.6x+2.1=30.1(382)4.7x-3x+2.2=31.1(383)8.7x-6.3x+0.8=17.6(384)8.4x-4.9x+3.8=10.8(385)4.5x-4x+4.7=12.2(386)1.4x-0.2x+0.5=52.1(387)7.7x-5.4x+1.8=17.9(388)48x-18x+3.6=15.6(389)35x-33x+3.8=5.8(390)73x-43x+1.8=7.8(391)35x-29x+2.3=11.9(392)65x-51x+4=9.6(393)86x-25x+3.7=58.6(394)69x-60x+1.4=7.7(395)78x-44x+3.7=44.5(396)26x-10x+2=32.4(397)9.9x-8.3x-4.6=9.8(398)6.9x-1.3x-0.5=21.9(399)3.4x-2.8x-0.7=12.5(400)7.9x-6x-0.9=4.8(401)2.9x-0.5x-3.5=15.7(402)1.3x-1x-0.9=7.2(403)9.1x-1.6x-1.2=73.8(404)3.3x-0.8x-1.9=33.1(405)9.3x-8x-0.2=8.9(406)33x-2x-2.1=32(407)57x-25x-2.8=6.8(408)43x-12x-3.4=40(409)73x-40x-1.9=4.7(410)17x-5x-3.5=49.3(411)21x-5x-2.8=42(412)25x-17x-1.2=9.2(413)46x-10x-2.5=44.3(414)48x-21x-3=18.6(415)28x+30×3=174(416)4x+45×4=212(417)2x+20×3=178(418)4x+4×28=240(419)13x+2×70=257(420)16x+7×25=367(421)12x+25×7=259(422)3x+8×9=186(423)5x+9×17=238(424)16x-71×2=18(425)7x-34×4=39(426)13x-14×10=16(427)3x-2×55=10(428)10x-7×18=14(429)2x-16×3=84(430)2x-22×5=40(431)3x-2×5=149(432)7x-10×11=44(433)1.8x+2.9×2=18.4(434)1.2x+1.1×17=28.3(435)0.3x+3.6×5=22.5(436)4.1x+0.6×23=26.1(437)3.1x+2.4×4=22(438)4.5x+0.3×2=18.6(439)2.1x+4.8×4=27.6(440)0.5x+0.2×24=13.8(441)0.3x+1.6×8=18.2(442)27x+3×2.4=12.6(443)6x+6×0.7=7.2(444)3x+35×0.3=13.2(445)28x+29×0.4=31.2(446)8x+2×3.3=21.8(447)3x+2×2.8=9.5(448)3x+2×2.2=5.9(449)4x+11×1.6=22(450)10x+7×0.8=13.6(451)0.8x-1.7×3=2.1(452)2.4x-2×3=6(453)3x-0.3×21=5.7(454)0.4x-0.2×20=13.6(455)0.3x-4×2=4(456)1x-0.5×10=9(457)0.3x-0.5×2=4.7(458)0.8x-1.7×8=4.8(459)0.3x-4.6×2=4(460)6x-4×3.7=4.4(461)10x-3×4.6=2.2(462)4x-6×1.4=3.6(463)5x-4×0.6=12.1(464)21x-13×0.7=5.6(465)17x-2×3.9=9.2(466)33x-10×0.5=1.6(467)3x-5×0.7=6.1(468)6x-7×1.2=6.6(469)2(2x+30)=96(470)3(x+7)=117(471)3(11x+15)=111(472)3(5x+17)=171(473)2(x+17)=104(474)2(2x+18)=80(475)2(9x+11)=184(476)4(4x+3)=44(477)2(x+36)=114(478)4(17x-45)=92(479)9(2x-2)=144(480)6(3x-23)=186(481)2(5x-37)=36(482)2(6x-36)=168(483)5(26x-17)=175(484)4(29x-30)=112(485)4(4x-15)=100(486)2(x-11)=52(487)2(1.3x+4.3)=39.8(488)4(0.8x+8.1)=45.2(489)3(3.2x+1.1)=41.7(490)2(2x+2.4)=20.8(491)2(3.9x+2.7)=21(492)7(0.6x+3.9)=35.7(493)2(x+8.3)=20.6(494)6(0.6x+2.3)=21(495)3(1.5x+4.1)=34.8(496)6(0.9x-2)=42(497)5(1.1x-8.4)=29.5(498)17(2.4x-7)=44.2(499)4(6.6x-2.9)=41.2(500)13(0.7x-6)=49.4(501)5(5.3x-4.7)=29.5(502)28(0.6x-5.3)=36.4(503)3(1.2x-9.7)=14.1(504)11(0.5x-3.2)=30.8(505)(3x+29)÷7=5(506)(4x+26)÷6=13(507)(x+33)÷49=1(508)(5x+28)÷2=44(509)(17x+47)÷33=4(510)(12x+30)÷23=6(511)(2x+37)÷23=3(512)(18x+24)÷3=62(513)(17x+3)÷39=4(514)(11x-21)÷24=6(515)(14x-32)÷12=2(516)(3x-10)÷5=7(517)(10x-40)÷16=5(518)(6x-34)÷14=4(519)(3x-25)÷5=7(520)(16x-32)÷4=56(521)(6x-32)÷5=20(522)(11x-3)÷3=76(523)(6.2x+8.7)÷3=27.7(524)(9.2x+1.9)÷7=12.1(525)(4.4x+7)÷2=18.9(526)(1.8x+2.4)÷20=0.3(527)(9.6x+6.9)÷13=5.7(528)(6.1x+6.7)÷10=2.5(529)(2.6x+6.4)÷11=4.6(530)(3.2x+0.3)÷3=16.1(531)(3.1x+9.2)÷2=32.5(532)(5.2x-7.2)÷24=3.6(533)(6.1x-4.7)÷11=2.9(534)(5.2x-1.2)÷8=9.6(535)(8.7x-6.4)÷7=5.3(536)(6.6x-8.7)÷15=2.5(537)(7.1x-5.3)÷6=14.5(538)(x-7.6)÷37=0.2(539)(1.3x-5.5)÷2=1.8(540)(1.3x-6.4)÷2=8.5参考答案(1)x=22(2)x=32(3)x=42(4)x=76(5)x=65(6)x=79(7)x=88(8)x=12(9)x=65(10)x=44(11)x=46(12)x=81(13)x=81(14)x=50(15)x=88(16)x=99(17)x=89(18)x=33(19)x=6.7(20)x=8.3(21)x=0.6(22)x=8.8(23)x=1.8(24)x=5.7(25)x=0.4(26)x=4(27)x=2.1(28)x=5.1(29)x=4.7(30)x=8.1(31)x=3.6(32)x=8(33)x=9.7(34)x=9.2(35)x=1.6(36)x=3.7(37)x=84(38)x=86(39)x=54(40)x=52(41)x=57(42)x=35(43)x=47(44)x=76(45)x=95(46)x=18(47)x=14(48)x=7(49)x=61(50)x=21(51)x=10(52)x=41(53)x=57(54)x=7(55)x=3.1(56)x=5.5(57)x=3.8(58)x=1.5(59)x=5.2(60)x=2.3(61)x=5.3(62)x=6.1(63)x=9(64)x=0.3(65)x=3.7(66)x=1.2(67)x=4.2(68)x=5.2(69)x=3.6(70)x=5.5(71)x=3.7(72)x=4(73)x=7(74)x=4(75)x=11(76)x=5(77)x=3(78)x=4(79)x=11(80)x=62(81)x=2(82)x=8(83)x=20(84)x=7(85)x=2(86)x=23(87)x=5(88)x=82(89)x=27(90)x=5(91)x=6.6(92)x=0.4(93)x=0.7(94)x=2.4(95)x=0.3(96)x=0.4(97)x=2(98)x=0.3(99)x=9(100)x=59(101)x=21(102)x=55(103)x=9(104)x=4(105)x=8(106)x=10(107)x=3(108)x=14(109)x=7(110)x=4(111)x=8(112)x=10(113)x=7(114)x=4(115)x=51(116)x=13(117)x=4(118)x=180(119)x=123(120)x=154(121)x=182(122)x=110(123)x=140(124)x=70(125)x=158(126)x=36(127)x=18.7(128)x=7(129)x=12(130)x=2.8(131)x=13.5(132)x=15.3(133)x=9.6(134)x=4.4(135)x=19.6(136)x=95(137)x=12(138)x=11(139)x=33(140)x=48(141)x=19(142)x=3(143)x=33(144)x=15(145)x=6(146)x=15(147)x=32(148)x=10(149)x=76(150)x=22(151)x=19(152)x=46(153)x=8(154)x=0.8(155)x=0.4(156)x=0.5(157)x=6.1(158)x=1.2(159)x=0.2(160)x=1.8(161)x=1.5(162)x=1.3(163)x=2(164)x=6(165)x=8(166)x=4(167)x=22(168)x=3(169)x=6(170)x=35(171)x=54(172)x=1.7(173)x=1.5(174)x=0.8(175)x=3(176)x=0.3(177)x=5.9(178)x=0.2(179)x=0.6(180)x=1.3(181)x=5(182)x=3(183)x=12(184)x=37(185)x=2(186)x=3(187)x=2(188)x=19(189)x=20(190)x=71(191)x=26(192)x=6(193)x=4(194)x=4(195)x=2(196)x=5(197)x=75(198)x=16(199)x=3(200)x=9(201)x=11(202)x=12(203)x=3(204)x=5(205)x=3(206)x=9(207)x=2(208)x=12(209)x=56(210)x=7(211)x=35(212)x=7(213)x=58(214)x=3(215)x=3(216)x=22(217)x=1(218)x=3(219)x=3.6(220)x=3.6(221)x=0.2(222)x=0.5(223)x=7.1(224)x=10(225)x=0.9(226)x=2(227)x=2(228)x=49(229)x=18(230)x=3(231)x=3(232)x=6(233)x=13(234)x=4(235)x=4.2(236)x=1.6(237)x=1.2(238)x=3.5(239)x=2.7(240)x=0.2(241)x=0.3(242)x=5.8(243)x=0.4(244)x=12(245)x=8(246)x=4(247)x=75(248)x=3(249)x=3(250)x=34(251)x=10(252)x=10(253)x=15(254)x=6(255)x=9(256)x=4(257)x=6(258)x=5(259)x=4(260)x=3(261)x=4(262)x=1.9(263)x=2(264)x=5.4(265)x=0.4(266)x=0.2(267)x=1.4(268)x=2.1(269)x=0.6(270)x=1.8(271)x=28(272)x=5(273)x=2(274)x=9(275)x=6(276)x=5(277)x=2(278)x=17(279)x=11(280)x=10(281)x=6(282)x=15(283)x=11(284)x=14(285)x=23(286)x=5(287)x=7(288)x=3(289)x=3(290)x=10(291)x=4(292)x=8(293)x=2(294)x=9(295)x=11(296)x=46(297)x=19(298)x=16(299)x=8(300)x=3(301)x=6(302)x=5(303)x=11(304)x=6(305)x=3(306)x=17(307)x=4(308)x=10(309)x=4(310)x=22(311)x=16(312)x=4(313)x=9(314)x=3(315)x=8(316)x=20(317)x=6(318)x=4(319)x=17(320)x=8(321)x=9(322)x=48(323)x=29(324)x=46(325)x=9(326)x=6(327)x=13(328)x=9(329)x=13(330)x=12(331)x=5(332)x=2(333)x=8(334)x=11(335)x=14(336)x=7(337)x=4(338)x=18(339)x=22(340)x=12(341)x=10(342)x=27(343)x=10(344)x=14(345)x=4(346)x=15(347)x=3(348)x=4(349)x=31(350)x=2(351)x=9(352)x=0.8(353)x=1(354)x=1.9(355)x=1.8(356)x=0.9(357)x=1.1(358)x=0.6(359)x=0.9(360)x=0.5(361)x=10(362)x=9(363)x=12(364)x=11(365)x=8(366)x=10(367)x=7(368)x=11(369)x=8(370)x=3.5(371)x=0.5(372)x=0.2(373)x=0.3(374)x=0.6(375)x=1.2(376)x=0.3(377)x=0.4(378)x=0.5(379)x=24(380)x=10(381)x=28(382)x=17(383)x=7(384)x=2(385)x=15(386)x=43(387)x=7(388)x=0.4(389)x=1(390)x=0.2(391)x=1.6(392)x=