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+76=88(2)x+74=95(3)x+67=118(4)x+98=193(5)x+76=166(6)x+15=74(7)x+14=111(8)x+66=147(9)x+9=33(10)x-34=64(11)x-51=48(12)x-49=47(13)x-10=61(14)x-67=20(15)x-8=91(16)x-19=72(17)x-13=66(18)x-14=63(19)x+1.7=4.4(20)x+8.8=9.5(21)x+5=5.9(22)x+0.9=4.3(23)x+9.9=17.3(24)x+2.8=8.1(25)x+0.8=3(26)x+1.7=3.1(27)x+6.3=10.2(28)x-6.2=2.1(29)x-2=6.2(30)x-1=7.2(31)x-6.9=2.1(32)x-1.2=4.6(33)x-0.5=5.3(34)x-6.2=3(35)x-3.3=2(36)x-2.3=4(37)85+x=116(38)80+x=154(39)94+x=134(40)73+x=140(41)70+x=119(42)83+x=102(43)48+x=129(44)66+x=105(45)20+x=64(46)79-x=63(47)80-x=25(48)67-x=17(49)93-x=32(50)60-x=14(51)58-x=51(52)75-x=38(53)89-x=17(54)65-x=16(55)5.5+x=14(56)9.8+x=18.3(57)4.5+x=5.6(58)9.5+x=18.4(59)9.1+x=12.6(60)0.2+x=5.5(61)7.7+x=16.3(62)3.4+x=11.6(63)1+x=3.2(64)4.5-x=2.1(65)4.6-x=1(66)8.7-x=2.6(67)8.2-x=5.4(68)4.4-x=2(69)8.8-x=2.2(70)4.6-x=2.2(71)4.3-x=1.5(72)8-x=2.4(73)4x=40(74)21x=147(75)2x=68(76)26x=182(77)5x=140(78)6x=12(79)5x=190(80)16x=64(81)5x=80(82)6.4x=19.2(83)0.2x=19.2(84)1.6x=11.2(85)1.1x=15.4(86)4.8x=14.4(87)2.4x=16.8(88)0.5x=8(89)0.6x=16.8(90)0.4x=8(91)95x=19(92)2x=17.6(93)2x=12.8(94)99x=19.8(95)9x=7.2(96)10x=4(97)28x=19.6(98)4x=4(99)5x=13(100)98÷x=7(101)46÷x=23(102)84÷x=14(103)136÷x=2(104)110÷x=5(105)180÷x=30(106)174÷x=29(107)90÷x=3(108)55÷x=5(109)18.6÷x=0.2(110)8.7÷x=2.9(111)11.2÷x=0.8(112)19.2÷x=1.6(113)10.8÷x=0.4(114)13.8÷x=0.2(115)19.2÷x=2.4(116)14.4÷x=0.2(117)8.7÷x=0.3(118)x÷3=39(119)x÷56=3(120)x÷2=11(121)x÷9=5(122)x÷21=5(123)x÷4=16(124)x÷14=10(125)x÷6=13(126)x÷16=6(127)x÷29=0.6(128)x÷4=3.5(129)x÷33=0.2(130)x÷8=0.8(131)x÷7=2.6(132)x÷22=0.2(133)x÷16=1(134)x÷3=0.8(135)x÷2=0.2(136)37x+15=126(137)74x+40=188(138)4x+40=88(139)13x+35=61(140)4x+36=220(141)4x+39=143(142)2x+58=148(143)7x+13=97(144)15x+11=86(145)2x-21=99(146)15x-15=90(147)4x-13=55(148)3x-10=113(149)22x-33=121(150)9x-37=80(151)6x-19=167(152)3x-28=116(153)2x-31=163(154)4x+5.6=14.8(155)36x+4.5=11.7(156)6x+3.8=21.8(157)6x+3=12.6(158)18x+1.4=10.4(159)40x+1.2=21.2(160)59x+3.4=21.1(161)2x+3.2=22.6(162)41x+5.4=21.8(163)1.4x+3.6=17.6(164)0.3x+3.9=21.6(165)0.3x+5.2=22(166)1.6x+5.5=19.9(167)0.4x+4.9=21.3(168)4x+2.2=18.2(169)9.9x+4=23.8(170)0.9x+2.6=8.9(171)0.3x+4.2=21(172)3x-5.5=6.5(173)22x-2.6=4(174)2x-4.2=14.6(175)10x-3.5=6.5(176)45x-3.6=5.4(177)7x-4.1=14.8(178)17x-1.4=10.5(179)4x-2.4=7.2(180)2x-1.1=9.1(181)4.1x-1.3=11(182)4.3x-2.7=10.2(183)1.1x-2.8=1.6(184)1.7x-1.1=15.9(185)5.8x-3.7=7.9(186)2x-4.5=7.5(187)0.4x-1.2=13.2(188)1.1x-2.1=8.9(189)0.3x-4=3.2(190)197+43x=283(191)10+7x=115(192)49+4x=65(193)95+4x=223(194)185+37x=333(195)193+5x=298(196)97+2x=261(197)26+12x=110(198)144+2x=226(199)157-4x=113(200)141-17x=39(201)168-3x=93(202)120-2x=68(203)109-6x=25(204)145-2x=31(205)156-2x=66(206)158-8x=134(207)144-4x=64(208)9.3+0.6x=18.9(209)12.1+1x=16.1(210)3.3+0.2x=15.1(211)6+3.3x=12.6(212)17.9+0.2x=26.1(213)12.9+2.9x=21.6(214)12.7+9.8x=32.3(215)4.6+0.4x=6.2(216)11.8+2.6x=17(217)5.9+32x=21.9(218)4.7+10x=9.7(219)7.9+4x=25.1(220)6.9+2x=13.5(221)1.4+28x=18.2(222)4.9+57x=16.3(223)2.4+9x=10.5(224)17.8+6x=27.4(225)7.9+10x=18.9(226)13.1-0.2x=2.3(227)19.6-2.7x=3.4(228)7.9-0.9x=6.1(229)16.9-0.9x=8.8(230)12-0.3x=3.6(231)19.8-1.2x=13.8(232)5.8-0.3x=4(233)13.6-0.9x=10(234)10.6-0.3x=5.5(235)17.3-12x=12.5(236)18.1-4x=12.9(237)18.8-3x=10.7(238)5.7-2x=4.7(239)5-5x=3(240)8.3-4x=5.1(241)18.4-2x=2.6(242)19.9-3x=18.1(243)19.6-3x=4(244)40x÷32=5(245)44x÷8=22(246)17x÷4=34(247)7x÷91=2(248)12x÷3=36(249)20x÷10=18(250)2x÷28=7(251)7x÷11=14(252)9x÷30=6(253)2.7x÷3=4.5(254)0.8x÷11=1.6(255)0.8x÷4=3.6(256)1.8x÷2=2.7(257)1.2x÷45=0.4(258)2.4x÷96=0.2(259)4.8x÷16=1.2(260)0.4x÷3=2(261)0.2x÷4=1.6(262)14x÷24=0.7(263)22x÷44=0.4(264)3x÷6=1.6(265)24x÷96=0.2(266)4x÷8=2.5(267)22x÷3=4.4(268)72x÷12=1.2(269)3x÷12=1.5(270)42x÷28=0.6(271)3x+5x=120(272)3x+6x=252(273)19x+7x=78(274)5x+12x=272(275)14x+2x=80(276)9x+17x=286(277)9x+11x=100(278)7x+19x=156(279)2x+14x=64(280)15x-7x=40(281)12x-3x=45(282)6x-4x=24(283)19x-11x=48(284)15x-6x=27(285)17x-8x=54(286)9x-3x=78(287)8x-3x=125(288)6x-2x=92(289)1.3x+4.9x=74.4(290)3.7x+1.9x=78.4(291)4.3x+8.8x=144.1(292)5.6x+7.1x=152.4(293)4.9x+0.2x=91.8(294)0.7x+3x=14.8(295)4.2x+1.6x=23.2(296)0.7x+0.5x=24(297)3.9x+6.6x=21(298)6.9x-5.3x=3.2(299)2.4x-1.4x=34(300)7.3x-4.3x=6(301)1.8x-0.5x=58.5(302)5.1x-2.4x=45.9(303)4x-2.9x=13.2(304)7.9x-4.6x=19.8(305)2.5x-2.1x=5.6(306)2.3x-1.9x=14.8(307)13x+7x+4=44(308)18x+7x+20=170(309)11x+18x+25=83(310)3x+6x+37=154(311)3x+6x+47=308(312)2x+8x+46=106(313)4x+8x+30=66(314)2x+3x+38=73(315)8x+4x+3=219(316)8x+4x-36=252(317)8x+9x-42=77(318)4x+2x-36=192(319)7x+5x-10=278(320)5x+19x-18=126(321)13x+6x-29=161(322)9x+3x-47=133(323)3x+2x-7=78(324)18x+14x-46=82(325)11x-2x+44=125(326)18x-10x+41=81(327)15x-7x+29=109(328)17x-4x+40=118(329)18x-12x+16=52(330)12x-2x+19=169(331)16x-4x+46=190(332)10x-3x+6=48(333)17x-7x+24=114(334)8x-6x-6=16(335)14x-6x-34=54(336)11x-3x-4=140(337)13x-4x-3=123(338)9x-4x-35=55(339)8x-2x-21=117(340)6x-3x-31=56(341)9x-3x-23=67(342)14x-3x-25=30(343)5.2x+7.7x+2=156.8(344)2.6x+1.6x+4=25(345)0.4x+7.6x+0.8=56.8(346)8.3x+6.6x+4=63.6(347)1.4x+0.2x+3.4=83.4(348)9x+5.7x+1.2=30.6(349)5.4x+5.9x+4=173.5(350)4.1x+8x+1.8=147(351)7.6x+0.6x+4.9=70.5(352)27x+50x+2.8=95.2(353)23x+3x+4=113.2(354)7x+26x+1.3=60.7(355)35x+63x+3.6=72.2(356)85x+87x+3.6=175.6(357)99x+32x+1.3=27.5(358)14x+58x+3.6=68.4(359)26x+97x+1.1=74.9(360)44x+5x+2.9=56.8(361)6.9x+8.9x-3.3=107.3(362)5.9x+2x-0.5=46.9(363)8.3x+1.3x-4.7=100.9(364)5.2x+8.5x-3.3=92.6(365)1.9x+3.3x-3.1=152.9(366)4.5x+5.5x-2.6=77.4(367)6.1x+2.9x-1.6=97.4(368)4.4x+6.2x-3.1=124.1(369)4x+5.7x-3.2=122.9(370)26x+82x-3.5=61.3(371)38x+39x-4.5=172.6(372)27x+40x-3.8=157(373)26x+45x-1.7=62.2(374)30x+70x-1.8=18.2(375)17x+84x-0.6=39.8(376)13x+65x-0.8=69.4(377)14x+7x-4.5=39.6(378)32x+46x-3.7=66.5(379)6.4x-5.9x+2.8=5.8(380)4.4x-2.3x+0.4=17.2(381)2.5x-1.8x+2=27.9(382)1.4x-0.5x+4.1=53.6(383)3.4x-3.2x+2.1=7.5(384)6.6x-0.4x+3.5=46.9(385)9.2x-1.7x+1.4=76.4(386)3.7x-1.9x+1.5=37.5(387)7.3x-5.4x+4.7=21.8(388)55x-10x+0.6=63.6(389)21x-3x+3.7=50.5(390)97x-27x+0.6=70.6(391)51x-40x+0.5=2.7(392)65x-6x+1.4=66.3(393)76x-57x+0.8=10.3(394)81x-29x+3.7=24.5(395)86x-83x+0.8=2.3(396)62x-41x+1.4=35(397)4x-3.1x-0.7=1.1(398)5.5x-1.5x-2.7=53.3(399)6.1x-2x-1.7=10.6(400)4.6x-2.4x-2.7=6.1(401)2.7x-1.9x-2.1=1.1(402)5.4x-0.9x-4.3=13.7(403)1.1x-0.8x-0.4=23.3(404)9.1x-5.4x-0.6=10.5(405)6.1x-3.1x-1.9=16.1(406)68x-20x-4.9=47.9(407)91x-58x-2.1=27.6(408)69x-6x-2.5=73.1(409)25x-21x-4.4=3.6(410)70x-10x-0.5=83.5(411)37x-29x-1.1=16.5(412)60x-49x-0.5=6.1(413)44x-16x-1.4=9.8(414)64x-54x-3.4=1.6(415)11x+2×71=318(416)6x+59×2=310(417)4x+18×10=208(418)11x+3×43=261(419)2x+9×17=243(420)2x+7×11=271(421)21x+2×94=272(422)5x+31×3=138(423)8x+2×76=224(424)15x-17×5=35(425)11x-46×2=40(426)2x-2×36=98(427)7x-8×16=12(428)16x-37×2=86(429)2x-47×2=62(430)22x-13×5=111(431)8x-24×6=40(432)4x-3×20=92(433)2.1x+4.1×4=35.3(434)1.2x+1.1×12=32.4(435)0.7x+4×5=28.4(436)0.3x+0.2×12=13.5(437)0.4x+1.9×7=29.7(438)1.3x+2×9=29.7(439)0.9x+0.8×21=33.9(440)1.6x+0.8×4=16(441)0.2x+0.2×28=12.8(442)24x+5×4=36.8(443)12x+5×1=21.8(444)4x+2×3.1=8.6(445)25x+3×1.5=14.5(446)3x+9×1.4=21(447)9x+3×1.8=23.4(448)16x+21×0.4=11.6(449)5x+6×2.6=34.6(450)9x+2×4.2=21.9(451)0.5x-0.9×17=2.2(452)1x-0.5×25=3.5(453)0.6x-1.6×4=11(454)1.3x-0.9×3=16.8(455)0.7x-0.3×16=6.4(456)2.8x-3.9×3=7.9(457)0.3x-1.6×4=4.4(458)1.3x-2.2×4=2.9(459)3.1x-1.7×3=7.3(460)12x-5×2.2=1(461)14x-6×0.2=5.8(462)33x-4×1.6=13.4(463)28x-2×2.9=11(464)36x-7×0.8=5.2(465)4x-41×0.4=2.4(466)37x-2×4.3=6.2(467)8x-12×0.9=6(468)3x-2×0.8=1.1(469)7(x+14)=154(470)3(2x+35)=183(471)3(2x+42)=198(472)7(2x+8)=168(473)3(8x+42)=198(474)2(4x+16)=128(475)2(2x+17)=46(476)3(21x+22)=192(477)4(6x+2)=80(478)10(x-6)=110(479)11(2x-35)=121(480)3(3x-39)=153(481)4(4x-31)=180(482)5(5x-25)=50(483)2(8x-37)=198(484)2(4x-8)=128(485)5(2x-23)=145(486)4(2x-44)=200(487)2(0.2x+7.4)=33.2(488)5(1.2x+3.8)=37(489)3(0.6x+0.2)=25.8(490)5(1.9x+2.3)=30.5(491)7(0.4x+2.7)=38.5(492)3(5.5x+5.3)=48.9(493)4(0.9x+4.1)=38(494)2(0.2x+5.6)=22(495)4(0.3x+8)=35.6(496)10(3.6x-6.7)=41(497)3(1.5x-6.4)=48.3(498)25(1.7x-5.3)=37.5(499)6(5.2x-9.1)=39(500)5(0.9x-7.9)=32.5(501)20(1.6x-9.5)=34(502)3(3.8x-2.8)=25.8(503)8(2.4x-5.9)=10.4(504)14(1.9x-9.7)=23.8(505)(4x+26)÷9=10(506)(8x+35)÷13=7(507)(9x+10)÷7=22(508)(6x+30)÷28=6(509)(16x+14)÷21=6(510)(6x+42)÷4=39(511)(16x+8)÷12=10(512)(6x+23)÷5=7(513)(4x+32)÷32=3(514)(8x-48)÷21=8(515)(8x-14)÷18=5(516)(8x-8)÷26=4(517)(10x-26)÷38=3(518)(6x-12)÷6=20(519)(7x-39)÷8=10(520)(13x-9)÷3=49(521)(6x-38)÷2=56(522)(17x-26)÷7=6(523)(4.2x+3.2)÷8=8.8(524)(0.4x+6.4)÷12=0.9(525)(0.9x+1.8)÷3=5.1(526)(6x+1.6)÷4=3.4(527)(5.1x+1.8)÷20=0.6(528)(0.8x+0.4)÷4=1.7(529)(6.2x+0.8)÷20=1.9(530)(3.1x+2.9)÷5=7.4(531)(4.7x+6.1)÷4=7.4(532)(9.4x-5.8)÷21=4.2(533)(8x-0.7)÷17=0.9(534)(8.7x-3.6)÷2=41.7(535)(1.7x-7.9)÷2=12.2(536)(2.9x-5.7)÷20=1.6(537)(4.3x-1.7)÷3=10.9(538)(0.4x-1.4)÷21=0.2(539)(8.2x-4.6)÷2=34.6(540)(1.3x-2.9)÷20=0.7参考答案(1)x=12(2)x=21(3)x=51(4)x=95(5)x=90(6)x=59(7)x=97(8)x=81(9)x=24(10)x=98(11)x=99(12)x=96(13)x=71(14)x=87(15)x=99(16)x=91(17)x=79(18)x=77(19)x=2.7(20)x=0.7(21)x=0.9(22)x=3.4(23)x=7.4(24)x=5.3(25)x=2.2(26)x=1.4(27)x=3.9(28)x=8.3(29)x=8.2(30)x=8.2(31)x=9(32)x=5.8(33)x=5.8(34)x=9.2(35)x=5.3(36)x=6.3(37)x=31(38)x=74(39)x=40(40)x=67(41)x=49(42)x=19(43)x=81(44)x=39(45)x=44(46)x=16(47)x=55(48)x=50(49)x=61(50)x=46(51)x=7(52)x=37(53)x=72(54)x=49(55)x=8.5(56)x=8.5(57)x=1.1(58)x=8.9(59)x=3.5(60)x=5.3(61)x=8.6(62)x=8.2(63)x=2.2(64)x=2.4(65)x=3.6(66)x=6.1(67)x=2.8(68)x=2.4(69)x=6.6(70)x=2.4(71)x=2.8(72)x=5.6(73)x=10(74)x=7(75)x=34(76)x=7(77)x=28(78)x=2(79)x=38(80)x=4(81)x=16(82)x=3(83)x=96(84)x=7(85)x=14(86)x=3(87)x=7(88)x=16(89)x=28(90)x=20(91)x=0.2(92)x=8.8(93)x=6.4(94)x=0.2(95)x=0.8(96)x=0.4(97)x=0.7(98)x=1(99)x=2.6(100)x=14(101)x=2(102)x=6(103)x=68(104)x=22(105)x=6(106)x=6(107)x=30(108)x=11(109)x=93(110)x=3(111)x=14(112)x=12(113)x=27(114)x=69(115)x=8(116)x=72(117)x=29(118)x=117(119)x=168(120)x=22(121)x=45(122)x=105(123)x=64(124)x=140(125)x=78(126)x=96(127)x=17.4(128)x=14(129)x=6.6(130)x=6.4(131)x=18.2(132)x=4.4(133)x=16(134)x=2.4(135)x=0.4(136)x=3(137)x=2(138)x=12(139)x=2(140)x=46(141)x=26(142)x=45(143)x=12(144)x=5(145)x=60(146)x=7(147)x=17(148)x=41(149)x=7(150)x=13(151)x=31(152)x=48(153)x=97(154)x=2.3(155)x=0.2(156)x=3(157)x=1.6(158)x=0.5(159)x=0.5(160)x=0.3(161)x=9.7(162)x=0.4(163)x=10(164)x=59(165)x=56(166)x=9(167)x=41(168)x=4(169)x=2(170)x=7(171)x=56(172)x=4(173)x=0.3(174)x=9.4(175)x=1(176)x=0.2(177)x=2.7(178)x=0.7(179)x=2.4(180)x=5.1(181)x=3(182)x=3(183)x=4(184)x=10(185)x=2(186)x=6(187)x=36(188)x=10(189)x=24(190)x=2(191)x=15(192)x=4(193)x=32(194)x=4(195)x=21(196)x=82(197)x=7(198)x=41(199)x=11(200)x=6(201)x=25(202)x=26(203)x=14(204)x=57(205)x=45(206)x=3(207)x=20(208)x=16(209)x=4(210)x=59(211)x=2(212)x=41(213)x=3(214)x=2(215)x=4(216)x=2(217)x=0.5(218)x=0.5(219)x=4.3(220)x=3.3(221)x=0.6(222)x=0.2(223)x=0.9(224)x=1.6(225)x=1.1(226)x=54(227)x=6(228)x=2(229)x=9(230)x=28(231)x=5(232)x=6(233)x=4(234)x=17(235)x=0.4(236)x=1.3(237)x=2.7(238)x=0.5(239)x=0.4(240)x=0.8(241)x=7.9(242)x=0.6(243)x=5.2(244)x=4(245)x=4(246)x=8(247)x=26(248)x=9(249)x=9(250)x=98(251)x=22(252)x=20(253)x=5(254)x=22(255)x=18(256)x=3(257)x=15(258)x=8(259)x=4(260)x=15(261)x=32(262)x=1.2(263)x=0.8(264)x=3.2(265)x=0.8(266)x=5(267)x=0.6(268)x=0.2(269)x=6(270)x=0.4(271)x=15(272)x=28(273)x=3(274)x=16(275)x=5(276)x=11(277)x=5(278)x=6(279)x=4(280)x=5(281)x=5(282)x=12(283)x=6(284)x=3(285)x=6(286)x=13(287)x=25(288)x=23(289)x=12(290)x=14(291)x=11(292)x=12(293)x=18(294)x=4(295)x=4(296)x=20(297)x=2(298)x=2(299)x=34(300)x=2(301)x=45(302)x=17(303)x=12(304)x=6(305)x=14(306)x=37(307)x=2(308)x=6(309)x=2(310)x=13(311)x=29(312)x=6(313)x=3(314)x=7(315)x=18(316)x=24(317)x=7(318)x=38(319)x=24(320)x=6(321)x=10(322)x=15(323)x=17(324)x=4(325)x=9(326)x=5(327)x=10(328)x=6(329)x=6(330)x=15(331)x=12(332)x=6(333)x=9(334)x=11(335)x=11(336)x=18(337)x=14(338)x=18(339)x=23(340)x=29(341)x=15(342)x=5(343)x=12(344)x=5(345)x=7(346)x=4(347)x=50(348)x=2(349)x=15(350)x=12(351)x=8(352)x=1.2(353)x=4.2(354)x=1.8(355)x=0.7(356)x=1(357)x=0.2(358)x=0.9(359)x=0.6(360)x=1.1(361)x=7(362)x=6(363)x=11(364)x=7(365)x=30(366)x=8(367)x=11(368)x=12(369)x=13(370)x=0.6(371)x=2.3(372)x=2.4(373)x=0.9(374)x=0.2(375)x=0.4(376)x=0.9(377)x=2.1(378)x=0.9(379)x=6(380)x=8(381)x=37(382)x=55(383)x=27(384)x=7(385)x=10(386)x=20(387)x=9(388)x=1.4(389)x=2.6(390)x=1(391)x=0.2(392)x=