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+82=102(2)x+74=104(3)x+55=111(4)x+9=86(5)x+28=58(6)x+46=114(7)x+48=115(8)x+50=103(9)x+68=163(10)x-46=37(11)x-4=92(12)x-22=47(13)x-70=21(14)x-50=41(15)x-70=22(16)x-9=44(17)x-73=11(18)x-52=37(19)x+2.6=5.5(20)x+5.3=10.7(21)x+4=11.6(22)x+2.2=7.4(23)x+0.3=6.5(24)x+2.7=8.2(25)x+3=4.1(26)x+8.3=10.7(27)x+7.9=16.3(28)x-1.7=5.9(29)x-6.3=2.2(30)x-4.1=3.6(31)x-4.1=4.1(32)x-5.1=3.3(33)x-0.6=5.5(34)x-3.7=4.8(35)x-5=3.6(36)x-2.6=4.4(37)24+x=56(38)68+x=129(39)18+x=44(40)22+x=37(41)27+x=60(42)48+x=117(43)94+x=132(44)63+x=76(45)43+x=46(46)89-x=12(47)92-x=66(48)86-x=47(49)53-x=22(50)96-x=72(51)48-x=44(52)69-x=27(53)60-x=33(54)17-x=13(55)4.4+x=11.7(56)9.4+x=14.9(57)8.3+x=14.3(58)1.4+x=3(59)5.8+x=12.1(60)6.5+x=8.4(61)4.2+x=11.7(62)1.7+x=2.4(63)2.3+x=9.1(64)9.6-x=5.1(65)9.4-x=8.9(66)8.1-x=6.9(67)6.2-x=2.9(68)8.2-x=1.9(69)9.6-x=1(70)7.6-x=4.3(71)9.6-x=6.6(72)6.2-x=1.6(73)37x=148(74)13x=26(75)2x=132(76)21x=168(77)89x=178(78)6x=156(79)47x=94(80)5x=105(81)26x=52(82)0.6x=1.8(83)1.5x=10.5(84)0.3x=6.6(85)0.2x=9.2(86)0.3x=9.6(87)0.8x=11.2(88)3.1x=12.4(89)0.2x=18.2(90)0.2x=11(91)55x=11(92)61x=18.3(93)3x=19.2(94)14x=15.4(95)3x=1.5(96)2x=4.6(97)5x=15.5(98)3x=1.2(99)84x=16.8(100)143÷x=13(101)98÷x=7(102)12÷x=6(103)38÷x=2(104)198÷x=9(105)24÷x=6(106)124÷x=2(107)72÷x=2(108)91÷x=13(109)15÷x=3(110)15.2÷x=1.9(111)2÷x=0.5(112)16.8÷x=1.4(113)19÷x=0.2(114)12.4÷x=0.4(115)11.7÷x=1.3(116)11÷x=1(117)11.4÷x=0.2(118)x÷2=29(119)x÷49=4(120)x÷59=3(121)x÷2=40(122)x÷2=10(123)x÷3=38(124)x÷12=4(125)x÷11=7(126)x÷5=37(127)x÷27=0.7(128)x÷36=0.4(129)x÷4=4.3(130)x÷9=2.1(131)x÷6=1.9(132)x÷12=0.7(133)x÷2=1.7(134)x÷2=4.3(135)x÷39=0.4(136)14x+15=99(137)17x+21=174(138)3x+45=123(139)12x+20=68(140)55x+35=145(141)2x+20=48(142)3x+31=103(143)37x+40=188(144)93x+23=209(145)3x-39=150(146)2x-45=11(147)10x-43=67(148)13x-44=47(149)70x-27=113(150)50x-37=63(151)6x-59=115(152)2x-52=30(153)5x-48=122(154)2x+3.5=5.1(155)23x+5.2=14.4(156)10x+2.2=22.2(157)11x+3.1=8.6(158)14x+1.7=11.5(159)38x+3.7=11.3(160)43x+2.3=10.9(161)8x+4.8=9.6(162)11x+2=14.1(163)0.3x+3.5=8.3(164)2.2x+5.4=18.6(165)1.1x+1.7=8.3(166)0.3x+4.7=11.3(167)8.6x+5.3=22.5(168)2.3x+2.9=14.4(169)7x+4.9=18.9(170)2x+2=22(171)0.6x+5.1=8.1(172)10x-4=2(173)6x-5=4(174)4x-1.1=18.1(175)92x-5.4=13(176)15x-2.5=15.5(177)35x-4.1=13.4(178)20x-4.5=11.5(179)12x-5.8=6.2(180)9x-2.8=11.6(181)4.7x-2.9=15.9(182)2.2x-1.2=18.6(183)1.3x-5.7=8.6(184)4.3x-5.5=7.4(185)1.6x-2.6=7(186)0.2x-4.7=2.1(187)2.4x-4.3=5.3(188)0.5x-1.5=1(189)0.3x-2.9=14.5(190)46+42x=130(191)68+10x=188(192)157+48x=349(193)35+3x=74(194)37+8x=237(195)91+19x=129(196)126+5x=256(197)181+9x=307(198)135+13x=239(199)135-2x=63(200)187-10x=67(201)174-2x=160(202)174-27x=66(203)94-2x=86(204)95-16x=15(205)127-2x=11(206)124-2x=112(207)145-3x=10(208)2+0.9x=20.9(209)6.1+0.9x=25(210)14.3+1.8x=25.1(211)2.9+0.3x=5.6(212)13+0.7x=15.8(213)6.5+2.1x=10.7(214)7.6+0.7x=20.2(215)12.8+0.6x=18.8(216)2.6+0.4x=9.4(217)4.1+65x=17.1(218)19.7+8x=38.9(219)12.9+3x=26.1(220)13.2+24x=18(221)17.4+56x=34.2(222)11.3+18x=20.3(223)4.6+26x=15(224)11.7+9x=24.3(225)3.6+35x=21.1(226)16.3-3.4x=9.5(227)13.1-1.2x=1.1(228)9.9-1.2x=7.5(229)17.9-0.9x=5.3(230)3.2-0.2x=2(231)14.8-4.2x=6.4(232)15.7-5.7x=4.3(233)18.8-3x=6.8(234)17-1.9x=3.7(235)19.7-16x=2.1(236)19.5-2x=9.3(237)16.5-16x=10.1(238)19.9-5x=17.9(239)10.3-2x=6.7(240)18.5-2x=12.7(241)7.1-2x=1.3(242)10.3-5x=3.3(243)14.1-23x=7.2(244)12x÷6=14(245)78x÷39=4(246)25x÷5=20(247)2x÷4=40(248)6x÷4=15(249)54x÷3=36(250)15x÷5=6(251)3x÷6=2(252)6x÷7=12(253)0.3x÷18=0.2(254)0.2x÷4=4.4(255)0.5x÷75=0.2(256)6.8x÷17=0.8(257)0.6x÷2=3.3(258)0.4x÷56=0.2(259)0.2x÷4=0.7(260)9x÷15=1.2(261)0.3x÷6=2.2(262)27x÷12=0.9(263)9x÷5=2.7(264)14x÷49=0.2(265)22x÷6=3.3(266)4x÷16=0.2(267)52x÷78=0.2(268)32x÷48=0.2(269)93x÷62=0.3(270)6x÷4=2.1(271)8x+15x=299(272)5x+7x=132(273)10x+8x=342(274)6x+9x=300(275)2x+3x=280(276)2x+4x=42(277)15x+11x=182(278)2x+4x=30(279)2x+7x=36(280)11x-9x=36(281)6x-2x=96(282)9x-2x=21(283)14x-8x=60(284)12x-10x=16(285)13x-3x=80(286)13x-5x=56(287)14x-12x=14(288)13x-5x=88(289)1.3x+1.6x=31.9(290)3.4x+6.7x=70.7(291)9.5x+0.5x=40(292)2.4x+0.6x=114(293)8.1x+0.3x=58.8(294)2.1x+4.5x=79.2(295)2.1x+3.4x=132(296)2.5x+9.2x=117(297)9.4x+6.7x=112.7(298)5x-4.8x=2.8(299)6.7x-2.9x=26.6(300)5.5x-2.6x=8.7(301)8.8x-3.1x=28.5(302)6.6x-0.5x=61(303)6.4x-3.7x=8.1(304)3x-0.2x=30.8(305)1.9x-1.7x=7.4(306)7.9x-0.4x=82.5(307)3x+2x+39=89(308)4x+3x+37=184(309)8x+16x+32=296(310)8x+11x+43=366(311)19x+5x+40=136(312)17x+18x+45=325(313)8x+14x+23=243(314)6x+8x+41=321(315)4x+5x+32=221(316)19x+14x-2=97(317)7x+4x-27=259(318)8x+7x-40=20(319)8x+6x-5=233(320)8x+12x-19=181(321)12x+19x-3=214(322)12x+16x-4=136(323)10x+19x-40=192(324)5x+19x-41=55(325)11x-7x+22=74(326)14x-7x+24=87(327)14x-2x+38=146(328)18x-10x+9=33(329)9x-7x+20=44(330)19x-2x+18=171(331)11x-2x+23=131(332)8x-4x+30=78(333)6x-2x+43=147(334)14x-4x-21=59(335)14x-8x-21=39(336)6x-2x-36=84(337)4x-2x-7=31(338)4x-2x-11=87(339)11x-9x-10=16(340)13x-2x-37=73(341)10x-2x-3=29(342)17x-4x-26=13(343)4.6x+5.1x+1.6=21(344)3.9x+8.2x+1=25.2(345)0.4x+0.5x+0.3=27.3(346)5.1x+1.5x+4.4=96.8(347)2.4x+2.8x+1.3=152.1(348)0.3x+0.5x+1.5=23.9(349)3.3x+5.5x+0.8=124(350)6.4x+5.6x+3.7=27.7(351)8.3x+7.1x+2.1=63.7(352)8x+4x+4.2=106.2(353)25x+43x+4.2=24.6(354)25x+22x+1.3=62.4(355)51x+13x+2.5=79.3(356)34x+51x+2.4=61.9(357)89x+10x+2.4=32.1(358)67x+49x+4=143.2(359)64x+67x+4.1=43.4(360)70x+79x+0.5=179.3(361)0.9x+1.2x-1.1=137.5(362)2.4x+7.1x-4.8=33.2(363)0.4x+4x-4=106(364)3.4x+0.4x-1.1=90.1(365)6.6x+0.2x-1.9=79.7(366)6.2x+7.1x-3.4=63.1(367)3.3x+8x-4.1=63.7(368)8.6x+9.2x-2=176(369)3.8x+9.3x-3.8=101(370)83x+54x-1=26.4(371)10x+2x-2.9=102.7(372)64x+57x-2.5=179(373)26x+7x-3.1=43.1(374)11x+27x-4.2=136.4(375)59x+22x-2.1=127.5(376)90x+69x-2=61.6(377)7x+19x-0.2=114.2(378)30x+41x-3.7=102.8(379)2.8x-0.4x+2=62(380)2.7x-0.5x+4.5=39.7(381)0.6x-0.4x+0.5=19.9(382)9.3x-7.7x+4.1=12.1(383)6.7x-5x+0.9=23(384)2x-1.8x+1.5=8.5(385)3.4x-0.8x+1=6.2(386)2.4x-1.3x+0.7=35.9(387)7.8x-6x+1.9=14.5(388)49x-30x+4.8=37.1(389)99x-97x+4.6=6.6(390)83x-36x+2.4=58.8(391)62x-7x+0.5=50(392)52x-12x+3.8=39.8(393)99x-74x+4.4=29.4(394)95x-14x+2.6=75.5(395)86x-67x+4=9.7(396)43x-35x+4=6.4(397)5.5x-1.7x-0.7=48.7(398)9.7x-4x-1=16.1(399)9.4x-3.4x-4.9=13.1(400)4.7x-1.3x-4.3=29.7(401)1.3x-0.5x-2.3=14.5(402)5.2x-3.3x-2.3=3.4(403)3x-2.3x-1.4=11.2(404)8.6x-1.2x-2.8=41.6(405)6x-5.4x-0.3=2.1(406)74x-53x-3.5=21.7(407)75x-62x-1.1=14.5(408)41x-36x-2.3=6.2(409)97x-17x-1.1=54.9(410)32x-18x-2.2=24.4(411)77x-65x-3.7=8.3(412)64x-30x-2.1=28.5(413)64x-45x-1.6=11.7(414)81x-53x-3.8=27(415)21x+31×6=312(416)21x+10×20=242(417)3x+9×7=108(418)15x+13×7=271(419)16x+17×10=330(420)18x+27×7=333(421)2x+15×5=97(422)3x+44×2=208(423)16x+3×11=145(424)2x-3×21=125(425)3x-63×2=39(426)25x-2×17=66(427)3x-2×9=72(428)6x-4×19=104(429)13x-16×4=27(430)5x-2×23=54(431)10x-8×2=144(432)2x-11×6=96(433)0.9x+1.1×8=19.6(434)1.1x+0.6×18=15.2(435)0.2x+0.8×5=10.4(436)3.9x+1.1×5=25(437)0.7x+0.8×17=30.4(438)3.8x+0.2×21=11.8(439)3.5x+0.9×21=36.4(440)0.3x+0.2×25=8(441)0.9x+2.6×4=17.6(442)19x+4×2.9=15.4(443)45x+31×0.2=19.7(444)8x+7×1.5=14.5(445)9x+11×1.8=21.6(446)2x+8×0.5=12.8(447)3x+43×0.4=23.5(448)10x+8×2.5=29(449)7x+14×1=16.8(450)16x+32×0.5=20.8(451)0.5x-0.5×3=2.5(452)1.9x-1×7=2.5(453)1.5x-1.4×5=11(454)0.5x-0.5×28=3(455)0.5x-0.7×5=6.5(456)0.3x-1.1×6=2.7(457)0.4x-1.9×3=4.7(458)1.8x-1.8×2=9(459)0.9x-0.9×3=16.2(460)33x-4×0.5=4.6(461)4x-3×3.1=5.9(462)25x-34×0.4=3.9(463)15x-6×2.8=2.7(464)17x-2×1=11.6(465)47x-4×1.6=3(466)3x-28×0.3=2.7(467)21x-10×1.4=4.9(468)10x-5×2.1=6.5(469)2(12x+10)=188(470)9(x+4)=63(471)4(6x+5)=92(472)11(2x+2)=154(473)2(15x+6)=162(474)2(5x+8)=66(475)2(4x+37)=194(476)3(x+39)=186(477)2(x+36)=164(478)7(7x-6)=105(479)7(x-17)=126(480)2(6x-35)=182(481)5(x-9)=50(482)5(3x-24)=195(483)2(2x-41)=26(484)2(10x-2)=136(485)2(5x-20)=40(486)2(2x-2)=24(487)6(1.9x+3)=40.8(488)13(0.4x+0.7)=24.7(489)2(0.7x+7.7)=33.6(490)3(0.4x+2.1)=8.7(491)2(0.5x+5.8)=40.6(492)3(0.8x+5.5)=26.1(493)4(0.4x+1.5)=49.2(494)4(1.9x+0.4)=32(495)2(0.3x+5.7)=19.8(496)27(3.2x-4.6)=48.6(497)24(2.1x-7.1)=31.2(498)6(2.8x-8.6)=15.6(499)3(2x-9.5)=19.5(500)8(0.5x-9.2)=38.4(501)17(0.4x-8.6)=37.4(502)17(2.6x-2.6)=44.2(503)6(5.5x-9)=12(504)10(0.2x-2.2)=16(505)(7x+5)÷4=52(506)(12x+45)÷7=39(507)(19x+34)÷12=25(508)(x+46)÷3=20(509)(5x+34)÷11=9(510)(7x+25)÷43=4(511)(11x+2)÷2=100(512)(19x+33)÷2=83(513)(7x+16)÷18=4(514)(18x-24)÷5=42(515)(6x-40)÷26=4(516)(14x-25)÷37=5(517)(6x-12)÷15=8(518)(7x-13)÷2=74(519)(6x-14)÷4=7(520)(13x-23)÷40=3(521)(18x-36)÷18=13(522)(16x-38)÷5=50(523)(2.4x+3.6)÷27=1.2(524)(7.2x+3.8)÷2=23.5(525)(2.6x+2.5)÷11=3.3(526)(3.6x+1.5)÷5=11.1(527)(2.4x+5.4)÷33=0.6(528)(5.5x+7)÷17=3(529)(6.9x+4.1)÷35=1.3(530)(4.8x+4)÷4=3.4(531)(4.2x+8.4)÷2=29.4(532)(3.2x-0.4)÷34=1.4(533)(1.6x-4.5)÷21=0.7(534)(8.9x-0.5)÷2=13.1(535)(1.2x-2)÷11=0.8(536)(6.2x-5.6)÷34=0.2(537)(2.1x-4.2)÷3=7(538)(1.4x-8)÷24=0.6(539)(4.2x-3.6)÷18=1.9(540)(0.4x-0.2)÷18=0.1参考答案(1)x=20(2)x=30(3)x=56(4)x=77(5)x=30(6)x=68(7)x=67(8)x=53(9)x=95(10)x=83(11)x=96(12)x=69(13)x=91(14)x=91(15)x=92(16)x=53(17)x=84(18)x=89(19)x=2.9(20)x=5.4(21)x=7.6(22)x=5.2(23)x=6.2(24)x=5.5(25)x=1.1(26)x=2.4(27)x=8.4(28)x=7.6(29)x=8.5(30)x=7.7(31)x=8.2(32)x=8.4(33)x=6.1(34)x=8.5(35)x=8.6(36)x=7(37)x=32(38)x=61(39)x=26(40)x=15(41)x=33(42)x=69(43)x=38(44)x=13(45)x=3(46)x=77(47)x=26(48)x=39(49)x=31(50)x=24(51)x=4(52)x=42(53)x=27(54)x=4(55)x=7.3(56)x=5.5(57)x=6(58)x=1.6(59)x=6.3(60)x=1.9(61)x=7.5(62)x=0.7(63)x=6.8(64)x=4.5(65)x=0.5(66)x=1.2(67)x=3.3(68)x=6.3(69)x=8.6(70)x=3.3(71)x=3(72)x=4.6(73)x=4(74)x=2(75)x=66(76)x=8(77)x=2(78)x=26(79)x=2(80)x=21(81)x=2(82)x=3(83)x=7(84)x=22(85)x=46(86)x=32(87)x=14(88)x=4(89)x=91(90)x=55(91)x=0.2(92)x=0.3(93)x=6.4(94)x=1.1(95)x=0.5(96)x=2.3(97)x=3.1(98)x=0.4(99)x=0.2(100)x=11(101)x=14(102)x=2(103)x=19(104)x=22(105)x=4(106)x=62(107)x=36(108)x=7(109)x=5(110)x=8(111)x=4(112)x=12(113)x=95(114)x=31(115)x=9(116)x=11(117)x=57(118)x=58(119)x=196(120)x=177(121)x=80(122)x=20(123)x=114(124)x=48(125)x=77(126)x=185(127)x=18.9(128)x=14.4(129)x=17.2(130)x=18.9(131)x=11.4(132)x=8.4(133)x=3.4(134)x=8.6(135)x=15.6(136)x=6(137)x=9(138)x=26(139)x=4(140)x=2(141)x=14(142)x=24(143)x=4(144)x=2(145)x=63(146)x=28(147)x=11(148)x=7(149)x=2(150)x=2(151)x=29(152)x=41(153)x=34(154)x=0.8(155)x=0.4(156)x=2(157)x=0.5(158)x=0.7(159)x=0.2(160)x=0.2(161)x=0.6(162)x=1.1(163)x=16(164)x=6(165)x=6(166)x=22(167)x=2(168)x=5(169)x=2(170)x=10(171)x=5(172)x=0.6(173)x=1.5(174)x=4.8(175)x=0.2(176)x=1.2(177)x=0.5(178)x=0.8(179)x=1(180)x=1.6(181)x=4(182)x=9(183)x=11(184)x=3(185)x=6(186)x=34(187)x=4(188)x=5(189)x=58(190)x=2(191)x=12(192)x=4(193)x=13(194)x=25(195)x=2(196)x=26(197)x=14(198)x=8(199)x=36(200)x=12(201)x=7(202)x=4(203)x=4(204)x=5(205)x=58(206)x=6(207)x=45(208)x=21(209)x=21(210)x=6(211)x=9(212)x=4(213)x=2(214)x=18(215)x=10(216)x=17(217)x=0.2(218)x=2.4(219)x=4.4(220)x=0.2(221)x=0.3(222)x=0.5(223)x=0.4(224)x=1.4(225)x=0.5(226)x=2(227)x=10(228)x=2(229)x=14(230)x=6(231)x=2(232)x=2(233)x=4(234)x=7(235)x=1.1(236)x=5.1(237)x=0.4(238)x=0.4(239)x=1.8(240)x=2.9(241)x=2.9(242)x=1.4(243)x=0.3(244)x=7(245)x=2(246)x=4(247)x=80(248)x=10(249)x=2(250)x=2(251)x=4(252)x=14(253)x=12(254)x=88(255)x=30(256)x=2(257)x=11(258)x=28(259)x=14(260)x=2(261)x=44(262)x=0.4(263)x=1.5(264)x=0.7(265)x=0.9(266)x=0.8(267)x=0.3(268)x=0.3(269)x=0.2(270)x=1.4(271)x=13(272)x=11(273)x=19(274)x=20(275)x=56(276)x=7(277)x=7(278)x=5(279)x=4(280)x=18(281)x=24(282)x=3(283)x=10(284)x=8(285)x=8(286)x=7(287)x=7(288)x=11(289)x=11(290)x=7(291)x=4(292)x=38(293)x=7(294)x=12(295)x=24(296)x=10(297)x=7(298)x=14(299)x=7(300)x=3(301)x=5(302)x=10(303)x=3(304)x=11(305)x=37(306)x=11(307)x=10(308)x=21(309)x=11(310)x=17(311)x=4(312)x=8(313)x=10(314)x=20(315)x=21(316)x=3(317)x=26(318)x=4(319)x=17(320)x=10(321)x=7(322)x=5(323)x=8(324)x=4(325)x=13(326)x=9(327)x=9(328)x=3(329)x=12(330)x=9(331)x=12(332)x=12(333)x=26(334)x=8(335)x=10(336)x=30(337)x=19(338)x=49(339)x=13(340)x=10(341)x=4(342)x=3(343)x=2(344)x=2(345)x=30(346)x=14(347)x=29(348)x=28(349)x=14(350)x=2(351)x=4(352)x=8.5(353)x=0.3(354)x=1.3(355)x=1.2(356)x=0.7(357)x=0.3(358)x=1.2(359)x=0.3(360)x=1.2(361)x=66(362)x=4(363)x=25(364)x=24(365)x=12(366)x=5(367)x=6(368)x=10(369)x=8(370)x=0.2(371)x=8.8(372)x=1.5(373)x=1.4(374)x=3.7(375)x=1.6(376)x=0.4(377)x=4.4(378)x=1.5(379)x=25(380)x=16(381)x=97(382)x=5(383)x=13(384)x=35(385)x=2(386)x=32(387)x=7(388)x=1.7(389)x=1(390)x=1.2(391)x=0.9(392)x=