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+18=90(2)x+29=61(3)x+37=75(4)x+87=152(5)x+92=138(6)x+97=115(7)x+4=58(8)x+92=105(9)x+62=90(10)x-73=11(11)x-21=26(12)x-11=15(13)x-6=54(14)x-6=77(15)x-20=61(16)x-36=11(17)x-74=23(18)x-40=54(19)x+4.7=5.4(20)x+6=9.4(21)x+9.6=11.3(22)x+1.3=9.1(23)x+3.4=11.7(24)x+5.7=9(25)x+1=5(26)x+4=6.5(27)x+0.4=9.6(28)x-0.4=4.9(29)x-6.8=1.9(30)x-5.2=3.1(31)x-3.6=5.4(32)x-2=5.4(33)x-3.2=6.7(34)x-5.9=1.4(35)x-2.2=5(36)x-4.8=3.5(37)47+x=79(38)31+x=80(39)47+x=119(40)87+x=184(41)93+x=97(42)32+x=123(43)32+x=104(44)7+x=77(45)23+x=69(46)48-x=10(47)36-x=26(48)94-x=59(49)94-x=55(50)84-x=42(51)94-x=56(52)96-x=50(53)97-x=77(54)49-x=17(55)4.7+x=10.3(56)5.5+x=9.2(57)2.4+x=7.1(58)5.3+x=12.7(59)3.3+x=7.8(60)7.7+x=8.5(61)9.9+x=19(62)6.7+x=8.4(63)3.1+x=5.8(64)8.8-x=1.4(65)9.6-x=3.6(66)3.2-x=1.1(67)9.4-x=5.6(68)5.3-x=3.6(69)6.1-x=5.6(70)4.9-x=4.7(71)9.9-x=2.1(72)7.1-x=2.1(73)18x=54(74)23x=161(75)25x=50(76)3x=198(77)3x=192(78)5x=30(79)3x=6(80)7x=168(81)2x=134(82)1x=11(83)2.7x=10.8(84)0.5x=11(85)0.7x=4.9(86)2.2x=13.2(87)2.4x=12(88)0.3x=9(89)0.5x=3.5(90)3.8x=7.6(91)4x=4(92)18x=16.2(93)3x=5.1(94)5x=10(95)27x=5.4(96)2x=19.2(97)7x=5.6(98)33x=6.6(99)20x=4(100)170÷x=2(101)153÷x=9(102)102÷x=3(103)78÷x=26(104)145÷x=29(105)120÷x=5(106)96÷x=16(107)192÷x=3(108)36÷x=3(109)16.8÷x=1.4(110)5.2÷x=0.4(111)18÷x=0.3(112)14.8÷x=0.2(113)6.4÷x=3.2(114)11.4÷x=0.6(115)7.2÷x=1.8(116)18.9÷x=0.3(117)18.3÷x=0.3(118)x÷3=37(119)x÷15=12(120)x÷2=7(121)x÷3=26(122)x÷2=24(123)x÷19=9(124)x÷2=47(125)x÷20=7(126)x÷13=4(127)x÷3=3.2(128)x÷34=0.3(129)x÷59=0.2(130)x÷8=1.4(131)x÷33=0.4(132)x÷14=1.4(133)x÷36=0.3(134)x÷3=4.6(135)x÷43=0.2(136)2x+13=181(137)2x+28=52(138)8x+29=85(139)23x+21=205(140)29x+12=70(141)10x+32=132(142)31x+27=182(143)2x+26=130(144)23x+35=219(145)40x-59=61(146)2x-37=31(147)15x-53=37(148)3x-40=110(149)25x-14=136(150)7x-14=63(151)4x-54=42(152)19x-17=40(153)4x-14=54(154)35x+3=17(155)11x+2.8=11.6(156)29x+1.9=10.6(157)8x+5.1=24.3(158)2x+5=16(159)11x+5.7=9(160)15x+2.5=5.5(161)23x+3.9=20(162)85x+4=21(163)0.3x+5.4=23.7(164)0.6x+5.8=13.6(165)0.3x+5.6=19.4(166)1x+3.5=14.5(167)4.1x+5.6=13.8(168)0.3x+5=17.9(169)0.4x+1.3=10.9(170)0.3x+2.8=20.5(171)0.3x+3.7=8.8(172)20x-1=9(173)5x-5.7=3.8(174)3x-3.6=15.3(175)83x-4.7=11.9(176)4x-5.4=5(177)28x-1.3=4.3(178)12x-5.6=10(179)61x-1.5=10.7(180)2x-5.9=7.9(181)0.3x-2.6=7.6(182)0.3x-1=17(183)1.9x-1.7=15.4(184)1.8x-4.1=3.1(185)0.8x-3.1=6.5(186)7.9x-3=12.8(187)0.2x-3.2=5.8(188)0.4x-5.9=6.1(189)0.6x-5.8=10.4(190)103+2x=129(191)77+55x=187(192)99+2x=265(193)138+4x=242(194)196+8x=380(195)89+7x=236(196)34+8x=130(197)169+47x=310(198)38+4x=54(199)130-12x=94(200)76-4x=48(201)95-24x=47(202)172-80x=12(203)144-2x=96(204)165-3x=57(205)90-36x=18(206)100-5x=70(207)73-3x=61(208)1.5+0.6x=17.7(209)5.4+7.2x=19.8(210)9.2+1.7x=19.4(211)18.5+3.5x=32.5(212)16.3+0.2x=23.3(213)17.9+0.3x=30.2(214)10.6+1.1x=12.8(215)17.7+1.1x=27.6(216)11.7+1.7x=28.7(217)13.1+4x=31.5(218)11.1+2x=19.1(219)9.4+3x=17.2(220)15.1+2x=17.1(221)17.4+32x=30.2(222)17.4+2x=23.2(223)4.4+15x=22.4(224)18.2+3x=26.9(225)13.1+61x=31.4(226)18.3-3.4x=11.5(227)17.9-1.4x=3.9(228)17.4-0.2x=13(229)16.3-0.3x=10.3(230)18.1-1x=13.1(231)19.1-1.2x=5.9(232)15.1-0.3x=6.7(233)16.7-0.7x=2.7(234)14.7-2x=2.7(235)15.6-4x=2.4(236)15.6-4x=6.8(237)15.4-5x=8.9(238)17-5x=6(239)17.6-53x=1.7(240)8.2-8x=6.6(241)12.2-34x=2(242)7.4-11x=1.9(243)19.3-60x=1.3(244)54x÷12=9(245)6x÷8=18(246)50x÷40=5(247)5x÷30=2(248)3x÷2=45(249)12x÷16=3(250)8x÷20=2(251)2x÷12=10(252)2x÷11=8(253)0.8x÷4=4.6(254)4.2x÷24=0.7(255)1.1x÷5=3.3(256)1.6x÷6=2.4(257)3.1x÷93=0.2(258)1.5x÷45=0.3(259)0.6x÷7=2.4(260)6x÷15=1.2(261)7.2x÷18=0.8(262)5x÷6=1(263)12x÷36=0.5(264)11x÷5=3.3(265)27x÷3=3.6(266)27x÷21=0.9(267)66x÷22=0.6(268)16x÷8=1.4(269)8x÷32=0.5(270)32x÷16=0.4(271)11x+2x=195(272)3x+5x=56(273)5x+2x=217(274)8x+6x=238(275)8x+18x=260(276)12x+10x=198(277)13x+10x=161(278)14x+8x=132(279)9x+4x=39(280)9x-5x=80(281)12x-7x=45(282)16x-13x=24(283)6x-3x=45(284)6x-4x=62(285)8x-5x=54(286)15x-4x=121(287)10x-5x=60(288)18x-13x=35(289)3.6x+8.6x=122(290)6.3x+0.6x=82.8(291)2.2x+4.4x=112.2(292)1.6x+0.7x=131.1(293)1.1x+9x=20.2(294)0.5x+0.7x=110.4(295)2.7x+0.2x=40.6(296)4.1x+5.2x=139.5(297)3.8x+1.6x=43.2(298)2.5x-1.2x=39(299)6.2x-2.7x=56(300)4.1x-2x=50.4(301)3.4x-1.5x=41.8(302)6.6x-1.1x=33(303)4x-0.9x=43.4(304)9.5x-2.4x=28.4(305)9.9x-3.4x=26(306)2.2x-1.8x=8(307)3x+16x+36=74(308)15x+6x+34=139(309)10x+13x+22=275(310)5x+18x+47=277(311)14x+2x+20=148(312)11x+15x+32=240(313)12x+9x+25=88(314)16x+12x+41=349(315)16x+10x+3=315(316)2x+5x-17=25(317)9x+10x-37=58(318)7x+12x-2=169(319)7x+9x-43=133(320)14x+15x-43=334(321)5x+3x-42=158(322)5x+3x-16=296(323)5x+6x-32=221(324)4x+6x-43=167(325)19x-3x+35=179(326)8x-3x+33=113(327)13x-8x+12=87(328)12x-4x+26=82(329)17x-7x+38=128(330)6x-2x+29=61(331)16x-13x+21=39(332)17x-11x+17=77(333)7x-5x+6=48(334)11x-8x-15=39(335)8x-3x-29=16(336)19x-11x-26=14(337)11x-4x-44=12(338)14x-3x-38=61(339)4x-2x-19=53(340)5x-3x-19=49(341)17x-12x-2=33(342)10x-7x-4=14(343)7.6x+6.9x+4.7=77.2(344)1.9x+9.4x+0.8=102.5(345)0.9x+1.1x+1.9=75.9(346)5.9x+1.1x+1.1=92.1(347)4x+1.1x+2.7=125.1(348)1.8x+0.6x+3.1=96.7(349)5.1x+8.6x+1.7=42.8(350)1.7x+8.4x+4.3=34.6(351)0.3x+8.8x+3.5=94.5(352)19x+59x+2=95.6(353)66x+5x+3.1=109.6(354)36x+44x+1.3=73.3(355)46x+73x+0.8=60.3(356)62x+71x+3.9=83.7(357)42x+70x+0.5=56.5(358)10x+26x+4.5=126.9(359)6x+48x+0.8=108.8(360)16x+35x+2.4=68.7(361)8.7x+7.1x-2.3=108.3(362)4.3x+4.1x-2.7=47.7(363)9.9x+7.4x-0.4=86.1(364)4.1x+1.9x-4.1=139.9(365)5.3x+1.3x-0.2=72.4(366)3.8x+4.7x-2.2=99.8(367)1.8x+2.9x-0.5=32.4(368)1.2x+0.5x-4.2=116.5(369)7.5x+2.6x-1.6=99.4(370)14x+49x-3=110.4(371)83x+79x-4.8=76.2(372)16x+17x-2.2=4.4(373)54x+85x-3.7=121.4(374)59x+84x-4.4=138.6(375)78x+72x-2.1=147.9(376)90x+50x-3.4=94.6(377)30x+41x-1.3=41.3(378)74x+5x-4.1=67(379)7.9x-6.3x+1.9=14.7(380)5.6x-5.4x+2.6=4.4(381)4.7x-2.3x+2.3=14.3(382)7.8x-4.4x+4.2=11(383)8.6x-6.4x+1.3=7.9(384)4.9x-0.8x+2.1=14.4(385)6.4x-5.9x+1.1=2.6(386)6x-5.7x+3.5=8.3(387)6.1x-0.7x+2=61.4(388)85x-40x+2.2=33.7(389)43x-33x+4.7=6.7(390)39x-22x+1.7=15.3(391)77x-68x+4.8=12(392)96x-78x+1.9=5.5(393)47x-45x+3.4=5.8(394)39x-12x+4.4=17.9(395)78x-30x+1.9=45.1(396)83x-17x+3.3=69.3(397)0.8x-0.3x-1=46.5(398)9.2x-2.7x-0.8=57.7(399)2.7x-1x-1.2=12.4(400)8.5x-0.9x-2.6=20.2(401)4.1x-0.5x-3.2=18.4(402)7.7x-2.8x-0.4=14.3(403)7.3x-1x-1.4=80.5(404)6.4x-3x-1.1=49.9(405)4.8x-0.5x-0.5=68.3(406)39x-27x-4.7=4.9(407)74x-53x-2.2=12.5(408)54x-50x-1.6=4.8(409)83x-4x-3.9=59.3(410)70x-50x-2.6=25.4(411)88x-81x-0.3=7.4(412)90x-64x-3.5=6.9(413)28x-20x-4.7=12.9(414)86x-21x-4.5=34.5(415)4x+2×43=130(416)16x+2×58=148(417)2x+5×21=207(418)2x+3×38=264(419)8x+28×3=132(420)4x+47×2=222(421)5x+3×28=99(422)23x+5×14=254(423)28x+6×16=292(424)8x-5×20=20(425)2x-12×6=126(426)2x-7×4=30(427)26x-25×5=57(428)3x-2×89=20(429)13x-6×9=141(430)20x-43×4=28(431)17x-3×47=29(432)6x-6×23=24(433)3.3x+0.8×4=13.1(434)1.8x+0.6×22=16.8(435)0.5x+0.3×20=13.5(436)0.2x+0.5×21=11.9(437)0.3x+0.4×5=15.8(438)0.9x+0.3×5=5.1(439)2.5x+0.3×15=19.5(440)1.3x+2×3=21.6(441)0.5x+4×4=17.5(442)6x+2×1.7=13(443)12x+6×1.8=22.8(444)3x+29×0.5=22.9(445)4x+34×0.2=13.6(446)15x+5×2.3=31(447)30x+8×2.4=25.2(448)4x+42×0.2=21.2(449)2x+25×0.4=12.2(450)12x+5×3.6=22.8(451)1.6x-0.3×35=8.7(452)0.6x-0.3×4=3.6(453)3.1x-0.3×41=3.2(454)4x-2.5×3=4.5(455)1.9x-4.9×2=7.3(456)0.3x-0.5×13=7(457)0.4x-1.2×7=9.2(458)0.4x-1.2×9=3.6(459)0.2x-0.6×2=6.2(460)8x-3×0.6=18.2(461)16x-2×3.2=12.8(462)27x-5×1.1=5.3(463)4x-46×0.3=3(464)46x-15×0.2=6.2(465)4x-12×0.7=8.4(466)19x-47×0.3=4.9(467)13x-11×1=3.3(468)46x-9×0.5=13.9(469)2(7x+34)=180(470)2(6x+4)=68(471)3(2x+13)=147(472)2(4x+5)=186(473)2(6x+11)=130(474)2(10x+13)=146(475)2(13x+33)=196(476)3(2x+31)=135(477)2(2x+6)=176(478)4(17x-30)=84(479)4(27x-44)=40(480)3(4x-23)=39(481)3(4x-19)=75(482)3(4x-25)=81(483)3(9x-45)=162(484)4(2x-5)=132(485)7(3x-37)=98(486)2(10x-4)=32(487)5(0.2x+1.3)=35.5(488)19(0.2x+1.4)=38(489)3(1.9x+1.8)=28.2(490)2(0.5x+3.4)=48.8(491)2(0.4x+4.3)=20.6(492)5(0.5x+2.5)=25(493)3(0.2x+1.3)=21.9(494)2(7.3x+5.6)=40.4(495)7(1.6x+2.7)=41.3(496)3(2.4x-4)=38.4(497)3(3.5x-4.6)=28.2(498)3(1.2x-0.8)=44.4(499)9(0.6x-8.5)=20.7(500)22(5.9x-9.7)=46.2(501)18(0.8x-3.9)=45(502)11(0.6x-3.2)=44(503)22(0.2x-7)=26.4(504)2(0.5x-5)=30(505)(x+40)÷12=5(506)(5x+4)÷23=3(507)(10x+33)÷21=13(508)(3x+46)÷2=41(509)(12x+12)÷26=6(510)(6x+22)÷4=31(511)(8x+14)÷31=2(512)(14x+42)÷2=35(513)(17x+36)÷14=5(514)(3x-8)÷8=5(515)(15x-10)÷8=25(516)(11x-4)÷2=119(517)(6x-18)÷24=5(518)(19x-43)÷3=68(519)(17x-14)÷4=22(520)(17x-43)÷12=12(521)(11x-12)÷13=5(522)(6x-45)÷39=1(523)(3.9x+4.5)÷9=4.4(524)(9.9x+3.5)÷28=2.6(525)(4.9x+7.1)÷11=5.1(526)(7x+8)÷26=3(527)(3.4x+9.8)÷6=3.9(528)(6.8x+0.7)÷3=9.3(529)(5x+6)÷2=30.5(530)(1.5x+3.3)÷13=2.1(531)(8.2x+9.4)÷32=2.6(532)(5.4x-6)÷19=4.8(533)(3.3x-7.5)÷6=2.6(534)(2.1x-0.9)÷6=1.6(535)(6.3x-2.1)÷15=4.9(536)(9.7x-5)÷20=4.6(537)(1.7x-4.3)÷10=2.8(538)(6.2x-9.8)÷13=6.4(539)(7.6x-1.8)÷6=7.3(540)(4x-1.6)÷8=5.3参考答案(1)x=72(2)x=32(3)x=38(4)x=65(5)x=46(6)x=18(7)x=54(8)x=13(9)x=28(10)x=84(11)x=47(12)x=26(13)x=60(14)x=83(15)x=81(16)x=47(17)x=97(18)x=94(19)x=0.7(20)x=3.4(21)x=1.7(22)x=7.8(23)x=8.3(24)x=3.3(25)x=4(26)x=2.5(27)x=9.2(28)x=5.3(29)x=8.7(30)x=8.3(31)x=9(32)x=7.4(33)x=9.9(34)x=7.3(35)x=7.2(36)x=8.3(37)x=32(38)x=49(39)x=72(40)x=97(41)x=4(42)x=91(43)x=72(44)x=70(45)x=46(46)x=38(47)x=10(48)x=35(49)x=39(50)x=42(51)x=38(52)x=46(53)x=20(54)x=32(55)x=5.6(56)x=3.7(57)x=4.7(58)x=7.4(59)x=4.5(60)x=0.8(61)x=9.1(62)x=1.7(63)x=2.7(64)x=7.4(65)x=6(66)x=2.1(67)x=3.8(68)x=1.7(69)x=0.5(70)x=0.2(71)x=7.8(72)x=5(73)x=3(74)x=7(75)x=2(76)x=66(77)x=64(78)x=6(79)x=2(80)x=24(81)x=67(82)x=11(83)x=4(84)x=22(85)x=7(86)x=6(87)x=5(88)x=30(89)x=7(90)x=2(91)x=1(92)x=0.9(93)x=1.7(94)x=2(95)x=0.2(96)x=9.6(97)x=0.8(98)x=0.2(99)x=0.2(100)x=85(101)x=17(102)x=34(103)x=3(104)x=5(105)x=24(106)x=6(107)x=64(108)x=12(109)x=12(110)x=13(111)x=60(112)x=74(113)x=2(114)x=19(115)x=4(116)x=63(117)x=61(118)x=111(119)x=180(120)x=14(121)x=78(122)x=48(123)x=171(124)x=94(125)x=140(126)x=52(127)x=9.6(128)x=10.2(129)x=11.8(130)x=11.2(131)x=13.2(132)x=19.6(133)x=10.8(134)x=13.8(135)x=8.6(136)x=84(137)x=12(138)x=7(139)x=8(140)x=2(141)x=10(142)x=5(143)x=52(144)x=8(145)x=3(146)x=34(147)x=6(148)x=50(149)x=6(150)x=11(151)x=24(152)x=3(153)x=17(154)x=0.4(155)x=0.8(156)x=0.3(157)x=2.4(158)x=5.5(159)x=0.3(160)x=0.2(161)x=0.7(162)x=0.2(163)x=61(164)x=13(165)x=46(166)x=11(167)x=2(168)x=43(169)x=24(170)x=59(171)x=17(172)x=0.5(173)x=1.9(174)x=6.3(175)x=0.2(176)x=2.6(177)x=0.2(178)x=1.3(179)x=0.2(180)x=6.9(181)x=34(182)x=60(183)x=9(184)x=4(185)x=12(186)x=2(187)x=45(188)x=30(189)x=27(190)x=13(191)x=2(192)x=83(193)x=26(194)x=23(195)x=21(196)x=12(197)x=3(198)x=4(199)x=3(200)x=7(201)x=2(202)x=2(203)x=24(204)x=36(205)x=2(206)x=6(207)x=4(208)x=27(209)x=2(210)x=6(211)x=4(212)x=35(213)x=41(214)x=2(215)x=9(216)x=10(217)x=4.6(218)x=4(219)x=2.6(220)x=1(221)x=0.4(222)x=2.9(223)x=1.2(224)x=2.9(225)x=0.3(226)x=2(227)x=10(228)x=22(229)x=20(230)x=5(231)x=11(232)x=28(233)x=20(234)x=6(235)x=3.3(236)x=2.2(237)x=1.3(238)x=2.2(239)x=0.3(240)x=0.2(241)x=0.3(242)x=0.5(243)x=0.3(244)x=2(245)x=24(246)x=4(247)x=12(248)x=30(249)x=4(250)x=5(251)x=60(252)x=44(253)x=23(254)x=4(255)x=15(256)x=9(257)x=6(258)x=9(259)x=28(260)x=3(261)x=2(262)x=1.2(263)x=1.5(264)x=1.5(265)x=0.4(266)x=0.7(267)x=0.2(268)x=0.7(269)x=2(270)x=0.2(271)x=15(272)x=7(273)x=31(274)x=17(275)x=10(276)x=9(277)x=7(278)x=6(279)x=3(280)x=20(281)x=9(282)x=8(283)x=15(284)x=31(285)x=18(286)x=11(287)x=12(288)x=7(289)x=10(290)x=12(291)x=17(292)x=57(293)x=2(294)x=92(295)x=14(296)x=15(297)x=8(298)x=30(299)x=16(300)x=24(301)x=22(302)x=6(303)x=14(304)x=4(305)x=4(306)x=20(307)x=2(308)x=5(309)x=11(310)x=10(311)x=8(312)x=8(313)x=3(314)x=11(315)x=12(316)x=6(317)x=5(318)x=9(319)x=11(320)x=13(321)x=25(322)x=39(323)x=23(324)x=21(325)x=9(326)x=16(327)x=15(328)x=7(329)x=9(330)x=8(331)x=6(332)x=10(333)x=21(334)x=18(335)x=9(336)x=5(337)x=8(338)x=9(339)x=36(340)x=34(341)x=7(342)x=6(343)x=5(344)x=9(345)x=37(346)x=13(347)x=24(348)x=39(349)x=3(350)x=3(351)x=10(352)x=1.2(353)x=1.5(354)x=0.9(355)x=0.5(356)x=0.6(357)x=0.5(358)x=3.4(359)x=2(360)x=1.3(361)x=7(362)x=6(363)x=5(364)x=24(365)x=11(366)x=12(367)x=7(368)x=71(369)x=10(370)x=1.8(371)x=0.5(372)x=0.2(373)x=0.9(374)x=1(375)x=1(376)x=0.7(377)x=0.6(378)x=0.9(379)x=8(380)x=9(381)x=5(382)x=2(383)x=3(384)x=3(385)x=3(386)x=16(387)x=11(388)x=0.7(389)x=0.2(390)x=0.8(391)x=0.8(392)