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+68=165(2)x+8=40(3)x+85=137(4)x+81=107(5)x+70=120(6)x+24=111(7)x+43=54(8)x+93=102(9)x+17=78(10)x-9=79(11)x-60=12(12)x-14=72(13)x-20=44(14)x-10=63(15)x-17=10(16)x-71=23(17)x-14=82(18)x-36=54(19)x+5.9=12(20)x+2=3.6(21)x+6.2=7.1(22)x+5.6=13.4(23)x+1.9=6.8(24)x+9.5=12.7(25)x+1.7=5.3(26)x+3.4=10.1(27)x+1.2=4.6(28)x-2.8=5.5(29)x-6.4=2.1(30)x-0.5=7.6(31)x-2.2=7.7(32)x-0.9=6.2(33)x-2=3.2(34)x-0.4=9.4(35)x-4.7=4.8(36)x-2.5=1.2(37)56+x=111(38)79+x=114(39)3+x=62(40)49+x=92(41)63+x=122(42)91+x=101(43)72+x=100(44)91+x=117(45)17+x=52(46)68-x=51(47)95-x=52(48)22-x=11(49)96-x=48(50)94-x=55(51)88-x=71(52)33-x=21(53)88-x=69(54)61-x=50(55)8.6+x=11.4(56)5.3+x=10.3(57)3.9+x=10.9(58)2.9+x=8.6(59)4+x=5.4(60)4.5+x=6.6(61)1.5+x=2.9(62)9.9+x=10.1(63)9.8+x=11.4(64)3.4-x=2.8(65)6.9-x=1.6(66)5.9-x=4.4(67)9.6-x=1.4(68)9.5-x=1.1(69)5.6-x=3.2(70)5.9-x=1.4(71)6.7-x=1.9(72)9.9-x=6.6(73)32x=96(74)3x=174(75)3x=108(76)2x=170(77)17x=34(78)32x=192(79)16x=32(80)6x=30(81)2x=152(82)1x=5(83)1.7x=3.4(84)0.2x=13(85)2.2x=8.8(86)0.2x=16.6(87)0.4x=18(88)1.4x=7(89)0.2x=11.6(90)1.1x=11(91)21x=18.9(92)8x=5.6(93)33x=16.5(94)3x=4.5(95)21x=16.8(96)21x=6.3(97)7x=4.2(98)84x=16.8(99)32x=16(100)42÷x=21(101)52÷x=2(102)78÷x=26(103)21÷x=3(104)198÷x=22(105)52÷x=13(106)144÷x=8(107)153÷x=17(108)55÷x=11(109)12.8÷x=0.4(110)13.5÷x=4.5(111)12.6÷x=2.1(112)16.5÷x=1.5(113)9÷x=0.6(114)17.7÷x=0.3(115)3.4÷x=1.7(116)12.3÷x=0.3(117)19.6÷x=1.4(118)x÷5=12(119)x÷9=9(120)x÷5=28(121)x÷36=3(122)x÷8=11(123)x÷41=3(124)x÷17=6(125)x÷7=20(126)x÷12=5(127)x÷7=1.8(128)x÷29=0.3(129)x÷22=0.8(130)x÷2=1.5(131)x÷14=0.8(132)x÷4=4.8(133)x÷20=0.6(134)x÷8=1.4(135)x÷8=1.2(136)63x+15=141(137)3x+25=40(138)2x+44=210(139)19x+16=54(140)86x+28=200(141)2x+19=155(142)4x+17=29(143)16x+19=67(144)16x+20=68(145)13x-45=98(146)11x-20=13(147)14x-32=38(148)73x-31=115(149)41x-25=57(150)28x-16=68(151)3x-15=144(152)12x-54=18(153)20x-39=121(154)59x+3.1=14.9(155)2x+4.1=11.9(156)31x+1.3=10.6(157)12x+4.4=11.6(158)9x+2.5=9.7(159)32x+5.5=24.7(160)2x+3.1=10.5(161)6x+1.7=3.5(162)22x+5.3=20.7(163)1.7x+2.6=14.5(164)0.2x+4.4=19.6(165)7.8x+1.6=17.2(166)0.5x+1.5=7(167)1.3x+3.3=16.3(168)5.7x+1.3=18.4(169)0.2x+2.6=12.4(170)0.2x+1.6=7.6(171)0.3x+4.2=21.3(172)3x-1.4=8.5(173)51x-2.6=12.7(174)24x-4.2=7.8(175)7x-5.2=5.3(176)8x-3.7=14.7(177)26x-5.4=5(178)17x-1.1=2.3(179)12x-1.4=7(180)40x-3.7=12.3(181)1.2x-1.4=13(182)4.8x-5.2=9.2(183)0.8x-3.7=14.7(184)9.8x-3=16.6(185)2.5x-1.1=16.4(186)1.1x-1.3=11.9(187)0.4x-3.8=14.6(188)0.9x-3.9=9.6(189)0.6x-3.1=16.1(190)67+5x=97(191)103+3x=292(192)46+40x=126(193)97+5x=152(194)83+36x=191(195)35+5x=230(196)127+39x=205(197)184+62x=370(198)168+11x=366(199)159-9x=78(200)95-6x=41(201)96-3x=27(202)82-5x=12(203)195-8x=83(204)191-8x=159(205)154-4x=70(206)123-5x=78(207)197-5x=77(208)2.3+1.2x=20.3(209)9.1+0.2x=25.7(210)19.9+6.7x=33.3(211)9.2+0.2x=22(212)9.6+0.2x=14.4(213)13.4+1.2x=26.6(214)14.5+3.4x=28.1(215)8.9+1.6x=12.1(216)12.8+3.8x=31.8(217)19+45x=37(218)12.6+62x=25(219)6.7+57x=18.1(220)6.6+4x=13.8(221)10.1+32x=26.1(222)5.2+3x=25(223)13.8+7x=22.9(224)15.1+74x=29.9(225)15.6+13x=27.3(226)16.5-0.3x=1.8(227)7-1.1x=3.7(228)13-4.1x=4.8(229)17.3-4.6x=3.5(230)7.4-0.3x=3.2(231)14.6-0.4x=10.2(232)14.3-0.4x=1.1(233)7.7-0.3x=5.9(234)19.9-0.9x=2.8(235)18.5-3x=13.4(236)15.1-2x=7.7(237)18.4-15x=13.9(238)14.3-16x=11.1(239)4.9-5x=3.4(240)16.7-15x=10.7(241)16-34x=5.8(242)10.2-6x=1.2(243)16.2-8x=12.2(244)63x÷7=27(245)36x÷24=3(246)5x÷95=2(247)29x÷87=2(248)14x÷7=4(249)9x÷12=15(250)77x÷7=22(251)2x÷30=5(252)50x÷5=40(253)0.7x÷70=0.2(254)0.3x÷12=1.5(255)1.5x÷25=0.3(256)0.8x÷2=1.2(257)0.5x÷10=0.4(258)0.7x÷4=2.1(259)9.5x÷19=1(260)1.2x÷30=0.4(261)8.1x÷6=2.7(262)11x÷22=0.6(263)14x÷4=4.2(264)2x÷6=1.2(265)45x÷15=0.9(266)5x÷25=0.3(267)9x÷18=0.6(268)5x÷10=1.2(269)7x÷14=0.8(270)9x÷45=0.4(271)9x+7x=80(272)13x+7x=280(273)3x+7x=50(274)2x+10x=108(275)12x+10x=308(276)19x+3x=154(277)14x+9x=46(278)5x+14x=57(279)8x+16x=240(280)12x-5x=91(281)12x-6x=30(282)13x-10x=45(283)7x-4x=51(284)11x-3x=16(285)17x-7x=40(286)6x-4x=34(287)9x-7x=26(288)15x-6x=36(289)9.3x+2.9x=85.4(290)0.4x+1.7x=79.8(291)4.1x+3.6x=69.3(292)1x+0.2x=54(293)4.8x+7.3x=121(294)1.5x+0.8x=126.5(295)5.1x+7.9x=91(296)5x+7.1x=145.2(297)0.5x+1.4x=20.9(298)1.4x-0.2x=18(299)8.3x-7.2x=9.9(300)7.5x-2.7x=24(301)8.1x-0.2x=23.7(302)1.8x-1.6x=1(303)9.2x-7.2x=10(304)6.2x-4.2x=4(305)3.8x-2.6x=12(306)5x-3.9x=7.7(307)8x+17x+15=65(308)14x+13x+43=151(309)7x+4x+4=59(310)8x+10x+48=120(311)8x+11x+31=354(312)5x+9x+37=79(313)6x+7x+37=193(314)6x+9x+25=145(315)16x+13x+16=190(316)4x+12x-27=133(317)3x+5x-41=239(318)6x+3x-14=31(319)12x+3x-8=232(320)12x+6x-28=242(321)2x+6x-41=71(322)5x+17x-37=117(323)2x+5x-47=58(324)8x+16x-43=197(325)6x-4x+12=74(326)6x-3x+33=75(327)6x-3x+42=84(328)15x-13x+22=32(329)13x-11x+28=58(330)11x-3x+3=43(331)15x-8x+43=106(332)16x-4x+21=81(333)8x-6x+32=66(334)5x-2x-6=18(335)19x-2x-25=26(336)17x-2x-36=69(337)18x-13x-23=27(338)15x-12x-7=32(339)10x-2x-34=38(340)7x-4x-21=63(341)13x-10x-20=22(342)10x-6x-18=58(343)6.4x+2.3x+0.8=113.9(344)1.4x+1.2x+3.9=29.9(345)6.2x+2.8x+4.1=40.1(346)9.3x+9x+2.7=75.9(347)1.1x+7.9x+3.4=75.4(348)2.6x+0.5x+1=25.8(349)5.6x+2.4x+2.9=138.9(350)3x+5.9x+4.7=67(351)1.3x+3.8x+3.4=59.5(352)20x+7x+0.4=43.6(353)52x+35x+1.7=140.9(354)27x+74x+4.6=45(355)97x+2x+2.7=101.7(356)33x+45x+4=58.6(357)49x+53x+3.2=135.8(358)49x+71x+2.3=122.3(359)22x+31x+3.1=29.6(360)33x+9x+4.9=122.5(361)1.8x+3.9x-2.9=76.9(362)0.8x+2.3x-0.3=33.8(363)4.9x+1.3x-4.7=44.9(364)1.6x+0.2x-2.7=92.7(365)1.2x+3.7x-3.7=74.7(366)9.5x+2.7x-0.6=23.8(367)0.3x+5.5x-0.4=22.8(368)2.8x+0.4x-4.2=21.4(369)1.6x+9.5x-3=30.3(370)16x+84x-1.7=38.3(371)55x+46x-2.6=128.7(372)3x+26x-2=99.5(373)5x+28x-4.5=71.4(374)34x+75x-4.3=17.5(375)12x+3x-1.3=73.7(376)36x+91x-0.2=126.8(377)13x+79x-1.1=100.1(378)11x+6x-4.3=140.2(379)1.6x-1.2x+1.7=20.1(380)5.4x-0.7x+2.7=49.7(381)9.1x-6.7x+0.3=24.3(382)2.6x-2.1x+2.3=8.8(383)6.9x-5.4x+3.6=18.6(384)7.3x-3.1x+1.3=26.5(385)4.7x-0.3x+3.4=29.8(386)9.1x-2.3x+4.6=25(387)6.9x-5.3x+2=16.4(388)49x-20x+4.8=59.9(389)72x-22x+4.6=24.6(390)79x-53x+3=18.6(391)88x-18x+1.9=15.9(392)42x-16x+2.8=18.4(393)63x-55x+2.5=10.5(394)23x-13x+2.2=44.2(395)59x-15x+4.5=35.3(396)44x-31x+1.1=28.4(397)0.8x-0.2x-0.9=51.9(398)6.4x-1.4x-4=61(399)8.4x-6.4x-1.8=12.2(400)3.4x-0.9x-3.7=28.8(401)9.8x-8.9x-4.7=1.6(402)1.1x-0.8x-1.2=12.3(403)8x-5.3x-3.6=12.6(404)1.3x-1.1x-2.5=4.5(405)9.3x-6.2x-4=14.6(406)39x-13x-4.8=5.6(407)75x-47x-3.7=7.5(408)98x-14x-2.6=39.4(409)26x-6x-4.4=33.6(410)21x-5x-1.9=28.5(411)73x-42x-2.2=10.2(412)35x-24x-0.3=7.4(413)33x-3x-2.8=57.2(414)42x-3x-4.8=84.9(415)20x+5×22=250(416)2x+5×21=195(417)3x+2×14=103(418)14x+18×3=236(419)5x+17×10=210(420)5x+3×56=318(421)5x+3×16=148(422)5x+9×22=368(423)2x+39×4=166(424)7x-4×29=17(425)2x-2×31=66(426)6x-52×2=88(427)7x-2×11=34(428)2x-9×11=99(429)16x-2×6=164(430)7x-6×9=100(431)5x-7×6=43(432)3x-5×6=75(433)0.3x+3.1×4=16.9(434)2.8x+0.4×44=28.8(435)1.3x+4.6×4=32.7(436)0.5x+0.4×35=25.5(437)0.5x+0.7×10=20.5(438)0.3x+0.4×34=28(439)2x+4.1×2=28.2(440)0.3x+4.5×4=21.6(441)0.3x+0.5×4=4.4(442)11x+25×0.2=12.7(443)7x+26×0.3=17.6(444)6x+34×0.4=33.4(445)31x+10×1.9=28.3(446)47x+3×2.8=27.2(447)32x+9×2.1=31.7(448)29x+6×3.3=31.4(449)21x+3×2.2=17.1(450)4x+3×3.8=12.6(451)0.2x-0.5×2=8.4(452)0.3x-0.2×3=1.8(453)3.2x-1.6×5=8(454)3.3x-0.3×34=3(455)0.7x-2×4=5.3(456)0.8x-1.5×3=7.5(457)3.2x-0.8×9=12(458)2.2x-0.9×5=4.3(459)0.5x-0.2×9=13.2(460)27x-3×0.2=4.8(461)12x-5×2=3.2(462)3x-4×1.8=6(463)7x-13×1.1=4.6(464)6x-15×0.6=10.8(465)5x-3×4.4=6.3(466)8x-25×0.2=2.2(467)10x-15×0.2=4(468)48x-2×3.6=7.2(469)2(10x+41)=142(470)2(x+2)=70(471)3(x+27)=99(472)2(5x+7)=154(473)3(4x+10)=126(474)3(2x+4)=132(475)6(x+4)=120(476)5(x+5)=195(477)5(x+6)=105(478)11(6x-36)=198(479)5(29x-37)=105(480)6(4x-2)=180(481)7(2x-38)=168(482)5(25x-23)=135(483)12(9x-13)=168(484)6(9x-44)=60(485)9(2x-3)=99(486)16(5x-23)=192(487)3(0.7x+9.3)=34.2(488)9(x+0.5)=49.5(489)2(2.5x+4.2)=23.4(490)2(1.4x+7)=22.4(491)2(0.7x+2.5)=33(492)3(0.7x+2.4)=45(493)7(1.1x+4.6)=47.6(494)2(0.2x+4.7)=26.2(495)5(1.2x+3.3)=46.5(496)6(0.6x-1.4)=31.2(497)2(0.7x-9.4)=5(498)3(1.3x-4.3)=37.8(499)10(0.3x-8.1)=33(500)3(0.5x-8.6)=40.2(501)4(3.1x-9.9)=10(502)3(3.6x-5.4)=5.4(503)8(2.4x-2.1)=40.8(504)12(0.8x-8.2)=36(505)(4x+24)÷22=2(506)(13x+37)÷7=22(507)(19x+32)÷2=73(508)(16x+39)÷3=93(509)(11x+19)÷9=7(510)(15x+9)÷33=3(511)(2x+3)÷39=1(512)(7x+14)÷42=4(513)(7x+39)÷6=17(514)(13x-11)÷7=17(515)(5x-29)÷18=2(516)(13x-32)÷22=8(517)(6x-34)÷14=1(518)(11x-18)÷5=25(519)(5x-11)÷42=2(520)(12x-44)÷4=19(521)(11x-6)÷25=9(522)(7x-29)÷3=37(523)(5.4x+3.6)÷2=7.2(524)(0.4x+1.1)÷39=0.1(525)(2.1x+8.3)÷2=11.5(526)(0.2x+5)÷2=3.6(527)(4x+9)÷5=6.6(528)(4.5x+8.4)÷2=40.2(529)(2.3x+9.4)÷13=3.2(530)(0.8x+8)÷10=1.6(531)(5x+8.2)÷29=0.8(532)(2.5x-0.7)÷11=3.8(533)(4.2x-2.7)÷9=3.9(534)(8.4x-4.4)÷10=4.6(535)(4.4x-1.2)÷8=4.8(536)(9x-8.4)÷3=30.2(537)(8.5x-7)÷5=8.8(538)(9x-2.7)÷3=14.1(539)(3.9x-8.7)÷2=17.1(540)(1.4x-1.8)÷11=0.6参考答案(1)x=97(2)x=32(3)x=52(4)x=26(5)x=50(6)x=87(7)x=11(8)x=9(9)x=61(10)x=88(11)x=72(12)x=86(13)x=64(14)x=73(15)x=27(16)x=94(17)x=96(18)x=90(19)x=6.1(20)x=1.6(21)x=0.9(22)x=7.8(23)x=4.9(24)x=3.2(25)x=3.6(26)x=6.7(27)x=3.4(28)x=8.3(29)x=8.5(30)x=8.1(31)x=9.9(32)x=7.1(33)x=5.2(34)x=9.8(35)x=9.5(36)x=3.7(37)x=55(38)x=35(39)x=59(40)x=43(41)x=59(42)x=10(43)x=28(44)x=26(45)x=35(46)x=17(47)x=43(48)x=11(49)x=48(50)x=39(51)x=17(52)x=12(53)x=19(54)x=11(55)x=2.8(56)x=5(57)x=7(58)x=5.7(59)x=1.4(60)x=2.1(61)x=1.4(62)x=0.2(63)x=1.6(64)x=0.6(65)x=5.3(66)x=1.5(67)x=8.2(68)x=8.4(69)x=2.4(70)x=4.5(71)x=4.8(72)x=3.3(73)x=3(74)x=58(75)x=36(76)x=85(77)x=2(78)x=6(79)x=2(80)x=5(81)x=76(82)x=5(83)x=2(84)x=65(85)x=4(86)x=83(87)x=45(88)x=5(89)x=58(90)x=10(91)x=0.9(92)x=0.7(93)x=0.5(94)x=1.5(95)x=0.8(96)x=0.3(97)x=0.6(98)x=0.2(99)x=0.5(100)x=2(101)x=26(102)x=3(103)x=7(104)x=9(105)x=4(106)x=18(107)x=9(108)x=5(109)x=32(110)x=3(111)x=6(112)x=11(113)x=15(114)x=59(115)x=2(116)x=41(117)x=14(118)x=60(119)x=81(120)x=140(121)x=108(122)x=88(123)x=123(124)x=102(125)x=140(126)x=60(127)x=12.6(128)x=8.7(129)x=17.6(130)x=3(131)x=11.2(132)x=19.2(133)x=12(134)x=11.2(135)x=9.6(136)x=2(137)x=5(138)x=83(139)x=2(140)x=2(141)x=68(142)x=3(143)x=3(144)x=3(145)x=11(146)x=3(147)x=5(148)x=2(149)x=2(150)x=3(151)x=53(152)x=6(153)x=8(154)x=0.2(155)x=3.9(156)x=0.3(157)x=0.6(158)x=0.8(159)x=0.6(160)x=3.7(161)x=0.3(162)x=0.7(163)x=7(164)x=76(165)x=2(166)x=11(167)x=10(168)x=3(169)x=49(170)x=30(171)x=57(172)x=3.3(173)x=0.3(174)x=0.5(175)x=1.5(176)x=2.3(177)x=0.4(178)x=0.2(179)x=0.7(180)x=0.4(181)x=12(182)x=3(183)x=23(184)x=2(185)x=7(186)x=12(187)x=46(188)x=15(189)x=32(190)x=6(191)x=63(192)x=2(193)x=11(194)x=3(195)x=39(196)x=2(197)x=3(198)x=18(199)x=9(200)x=9(201)x=23(202)x=14(203)x=14(204)x=4(205)x=21(206)x=9(207)x=24(208)x=15(209)x=83(210)x=2(211)x=64(212)x=24(213)x=11(214)x=4(215)x=2(216)x=5(217)x=0.4(218)x=0.2(219)x=0.2(220)x=1.8(221)x=0.5(222)x=6.6(223)x=1.3(224)x=0.2(225)x=0.9(226)x=49(227)x=3(228)x=2(229)x=3(230)x=14(231)x=11(232)x=33(233)x=6(234)x=19(235)x=1.7(236)x=3.7(237)x=0.3(238)x=0.2(239)x=0.3(240)x=0.4(241)x=0.3(242)x=1.5(243)x=0.5(244)x=3(245)x=2(246)x=38(247)x=6(248)x=2(249)x=20(250)x=2(251)x=75(252)x=4(253)x=20(254)x=60(255)x=5(256)x=3(257)x=8(258)x=12(259)x=2(260)x=10(261)x=2(262)x=1.2(263)x=1.2(264)x=3.6(265)x=0.3(266)x=1.5(267)x=1.2(268)x=2.4(269)x=1.6(270)x=2(271)x=5(272)x=14(273)x=5(274)x=9(275)x=14(276)x=7(277)x=2(278)x=3(279)x=10(280)x=13(281)x=5(282)x=15(283)x=17(284)x=2(285)x=4(286)x=17(287)x=13(288)x=4(289)x=7(290)x=38(291)x=9(292)x=45(293)x=10(294)x=55(295)x=7(296)x=12(297)x=11(298)x=15(299)x=9(300)x=5(301)x=3(302)x=5(303)x=5(304)x=2(305)x=10(306)x=7(307)x=2(308)x=4(309)x=5(310)x=4(311)x=17(312)x=3(313)x=12(314)x=8(315)x=6(316)x=10(317)x=35(318)x=5(319)x=16(320)x=15(321)x=14(322)x=7(323)x=15(324)x=10(325)x=31(326)x=14(327)x=14(328)x=5(329)x=15(330)x=5(331)x=9(332)x=5(333)x=17(334)x=8(335)x=3(336)x=7(337)x=10(338)x=13(339)x=9(340)x=28(341)x=14(342)x=19(343)x=13(344)x=10(345)x=4(346)x=4(347)x=8(348)x=8(349)x=17(350)x=7(351)x=11(352)x=1.6(353)x=1.6(354)x=0.4(355)x=1(356)x=0.7(357)x=1.3(358)x=1(359)x=0.5(360)x=2.8(361)x=14(362)x=11(363)x=8(364)x=53(365)x=16(366)x=2(367)x=4(368)x=8(369)x=3(370)x=0.4(371)x=1.3(372)x=3.5(373)x=2.3(374)x=0.2(375)x=5(376)x=1(377)x=1.1(378)x=8.5(379)x=46(380)x=10(381)x=10(382)x=13(383)x=10(384)x=6(385)x=6(386)x=3(387)x=9(388)x=1.9(389)x=0.4(390)x=0.6(391)x=0.2(392)x=0