五年級數(shù)學(方程)專項練習題及答案

五年級數(shù)學(方程)專項練習題及答案(1)x+14=86(2)x+49=64(3)x+35=53(4)x+41=113(5)x+50=95(6)x+63=139(7)x+86=155(8)x+99=161(9)x+71=166(10)x-45=48(11)x-21=59(12)x-28=14(13)x-18=76(14)x-19=62(15)x-32=39(16)x-52=21(17)x-6=70(18)x-11=39(19)x+5.6=15.3(20)x+7.7=8.8(21)x+6.1=10.1(22)x+1.8=9.3(23)x+7.7=11.8(24)x+1.1=3.9(25)x+4.1=9(26)x+9=11.6(27)x+4.6=5.2(28)x-1.2=5.9(29)x-1.1=3.3(30)x-3.6=4.6(31)x-5.3=1.7(32)x-1.6=4.6(33)x-2.9=6.5(34)x-2.1=3.3(35)x-5.9=1.3(36)x-2.3=4(37)92+x=177(38)88+x=114(39)19+x=100(40)41+x=69(41)55+x=114(42)15+x=42(43)75+x=130(44)42+x=59(45)79+x=100(46)70-x=52(47)85-x=62(48)46-x=11(49)46-x=17(50)68-x=40(51)73-x=41(52)84-x=66(53)49-x=40(54)71-x=31(55)1+x=7(56)1.6+x=11(57)3.4+x=9.8(58)9.3+x=13.7(59)8.8+x=9.1(60)7.2+x=13(61)6.3+x=8.2(62)1.5+x=3.8(63)2.3+x=8.6(64)7.6-x=3.4(65)7.5-x=5.8(66)7-x=6.3(67)8.1-x=3.5(68)9-x=8.2(69)9.1-x=6.5(70)9.1-x=3.2(71)9.2-x=5.1(72)8.1-x=3.9(73)18x=144(74)2x=64(75)5x=80(76)4x=68(77)54x=162(78)2x=146(79)24x=144(80)8x=56(81)10x=140(82)0.2x=17.6(83)0.4x=9.2(84)2.5x=10(85)3.7x=7.4(86)0.2x=12.4(87)1.2x=6(88)3.2x=16(89)4.3x=17.2(90)2.7x=18.9(91)3x=11.1(92)74x=14.8(93)30x=15(94)16x=11.2(95)8x=1.6(96)41x=12.3(97)15x=19.5(98)2x=2.4(99)47x=9.4(100)136÷x=4(101)26÷x=2(102)40÷x=20(103)120÷x=40(104)81÷x=3(105)147÷x=3(106)52÷x=2(107)90÷x=30(108)32÷x=16(109)6.4÷x=0.2(110)9.8÷x=0.7(111)10.5÷x=2.1(112)14.1÷x=4.7(113)15.2÷x=1.9(114)6.6÷x=0.2(115)7.5÷x=2.5(116)3÷x=0.6(117)14.5÷x=0.5(118)x÷32=6(119)x÷8=9(120)x÷2=16(121)x÷11=14(122)x÷11=3(123)x÷6=21(124)x÷6=7(125)x÷21=5(126)x÷18=8(127)x÷9=1.2(128)x÷7=2(129)x÷3=4.2(130)x÷3=3(131)x÷8=2.3(132)x÷7=2.8(133)x÷75=0.2(134)x÷11=1.6(135)x÷6=1(136)87x+55=229(137)3x+18=213(138)5x+26=221(139)17x+33=101(140)15x+31=196(141)20x+45=245(142)5x+43=128(143)77x+13=167(144)45x+26=116(145)15x-30=30(146)8x-25=47(147)8x-40=128(148)2x-29=111(149)4x-42=18(150)8x-52=84(151)2x-43=103(152)24x-39=81(153)53x-27=79(154)42x+3.1=11.5(155)2x+3.1=5.7(156)3x+2.9=6.8(157)12x+3.6=22.8(158)39x+3.5=11.3(159)2x+2.5=19.1(160)31x+1.9=8.1(161)32x+1.7=20.9(162)56x+2.4=19.2(163)0.2x+1.6=6.4(164)1.4x+5.4=22.2(165)0.2x+2.6=20.6(166)0.3x+5.3=11.6(167)0.3x+4.7=21.8(168)1.8x+5.3=16.1(169)1.6x+5=17.8(170)0.6x+1.1=7.7(171)0.5x+5.1=23.6(172)47x-3.8=15(173)11x-3.8=13.8(174)44x-2=15.6(175)35x-2.5=11.5(176)55x-2.7=8.3(177)5x-3=15(178)53x-2.2=8.4(179)5x-5.5=10(180)15x-2.5=17(181)1.7x-3.5=6.7(182)1.6x-2=7.6(183)1.7x-4.6=7.3(184)0.3x-5.8=13.7(185)0.4x-3.3=8.7(186)5.6x-4.2=12.6(187)4.6x-4.2=14.2(188)0.2x-3=3.8(189)6.4x-2.4=10.4(190)56+34x=192(191)82+13x=199(192)39+5x=144(193)111+7x=174(194)122+11x=287(195)31+19x=221(196)22+18x=202(197)129+4x=205(198)99+9x=216(199)184-18x=22(200)184-2x=16(201)157-2x=145(202)90-3x=18(203)85-4x=57(204)132-2x=26(205)83-12x=11(206)142-13x=116(207)171-16x=107(208)4.5+9.5x=23.5(209)9.7+1.4x=27.9(210)7.7+5.7x=24.8(211)5.1+0.5x=24.1(212)14.1+0.3x=20.4(213)19.4+8.3x=36(214)13.1+0.4x=25.5(215)14.6+4.1x=31(216)14+3.5x=24.5(217)8.7+13x=24.3(218)10+65x=23(219)16.2+46x=25.4(220)2.1+94x=20.9(221)17.3+24x=22.1(222)10.6+2x=26.4(223)11.8+5x=31.8(224)10+4x=21.6(225)9.8+4x=24.6(226)19-0.3x=8.5(227)19.1-0.6x=14.3(228)10.6-2x=6.6(229)13-0.3x=7.9(230)19.7-0.3x=8(231)11.1-0.6x=2.7(232)11.3-0.2x=2.7(233)10.3-0.7x=8.9(234)11.4-1x=6.4(235)18.2-26x=10.4(236)19.4-23x=10.2(237)17.2-36x=10(238)13.7-18x=1.1(239)18.9-2x=13.1(240)18.7-3x=4.9(241)16.4-8x=6(242)17.9-5x=13.4(243)18.3-10x=15.3(244)57x÷19=9(245)12x÷30=2(246)25x÷5=10(247)56x÷7=16(248)25x÷10=20(249)2x÷17=8(250)16x÷36=4(251)15x÷5=6(252)4x÷76=2(253)1.6x÷8=1.4(254)0.6x÷14=0.3(255)0.2x÷4=4.4(256)1.8x÷4=0.9(257)0.2x÷8=0.5(258)0.4x÷28=0.6(259)0.4x÷8=1.6(260)1x÷40=0.5(261)0.3x÷16=0.6(262)65x÷26=0.5(263)4x÷12=1.6(264)4x÷2=1.4(265)27x÷21=0.9(266)2x÷5=3.8(267)3x÷6=2.1(268)30x÷45=0.2(269)60x÷9=2(270)30x÷10=1.8(271)2x+5x=56(272)6x+7x=52(273)3x+10x=195(274)16x+18x=68(275)16x+9x=200(276)6x+3x=261(277)7x+8x=165(278)17x+5x=44(279)4x+2x=126(280)18x-10x=40(281)14x-11x=30(282)16x-5x=110(283)4x-2x=54(284)13x-5x=56(285)7x-2x=30(286)9x-3x=120(287)14x-8x=24(288)5x-2x=21(289)8.5x+9.2x=177(290)2.1x+2x=61.5(291)9.2x+6.5x=78.5(292)5.7x+8.5x=113.6(293)3.3x+3.1x=147.2(294)7.1x+0.4x=15(295)2.9x+8x=76.3(296)1.9x+1x=52.2(297)9x+4.4x=147.4(298)1.3x-0.7x=31.2(299)4.5x-2.9x=17.6(300)1.9x-0.3x=9.6(301)2.7x-1.6x=8.8(302)8.7x-3.3x=27(303)7.8x-1.3x=26(304)5.1x-2.7x=7.2(305)1.1x-0.6x=38(306)4x-3.5x=12.5(307)8x+4x+3=183(308)11x+16x+39=255(309)9x+8x+18=52(310)3x+11x+4=214(311)9x+8x+32=338(312)8x+13x+34=139(313)5x+3x+29=221(314)7x+17x+25=73(315)4x+11x+15=240(316)14x+19x-36=294(317)15x+16x-3=338(318)13x+8x-20=169(319)9x+11x-31=329(320)10x+4x-43=41(321)6x+7x-23=224(322)6x+5x-28=247(323)8x+4x-35=49(324)7x+9x-20=332(325)7x-5x+33=67(326)18x-3x+41=131(327)17x-11x+25=55(328)9x-3x+22=130(329)10x-6x+32=88(330)10x-3x+14=91(331)19x-16x+8=26(332)16x-11x+33=78(333)10x-4x+8=86(334)14x-4x-21=29(335)15x-7x-42=30(336)17x-5x-36=12(337)10x-3x-10=102(338)19x-8x-34=76(339)17x-11x-4=50(340)9x-4x-10=75(341)9x-4x-39=66(342)18x-5x-36=81(343)0.5x+8x+3=71(344)5.1x+1.9x+1.4=43.4(345)2.8x+3x+2.3=153.1(346)6.9x+7.6x+4.7=149.7(347)5.8x+0.2x+1.6=103.6(348)9.2x+4.7x+3.7=87.1(349)1.2x+6.9x+4.9=94(350)5.4x+7.5x+1.5=143.4(351)1.9x+2.7x+2.8=81(352)91x+55x+3=32.2(353)3x+40x+3.4=24.9(354)22x+76x+1.4=99.4(355)15x+23x+2.3=97.3(356)27x+2x+4.3=73.9(357)18x+67x+3.7=105.7(358)80x+31x+3.4=114.4(359)72x+38x+1=100(360)63x+55x+3.4=50.6(361)2.9x+1.5x-3=41(362)0.3x+1.6x-0.9=25.7(363)4.1x+3.1x-3.3=140.7(364)7.5x+1.4x-4.3=58(365)7.3x+3.1x-1.9=18.9(366)0.6x+1.2x-3.3=12.9(367)4.4x+0.4x-1.2=61.2(368)4x+3.6x-3.3=133.5(369)4.7x+9.3x-0.7=139.3(370)24x+8x-0.6=12.2(371)18x+14x-2.5=135.1(372)25x+37x-3.8=58.2(373)30x+64x-1.1=83.5(374)12x+20x-0.8=44(375)12x+25x-3.4=37.3(376)8x+20x-0.8=58(377)78x+67x-4=68.5(378)28x+33x-4.5=56.5(379)2.8x-2x+3.4=13.8(380)1.4x-0.9x+2.8=4.3(381)6.3x-5.7x+1.7=7.7(382)9.6x-5.2x+3.3=20.9(383)9.9x-7.3x+3=26.4(384)6.9x-5.1x+2.2=5.8(385)6.1x-1.1x+3.9=23.9(386)9.4x-5.6x+2.9=37.1(387)7.7x-5.3x+1.4=15.8(388)83x-4x+2.9=74(389)16x-3x+2.3=53(390)44x-8x+0.6=33(391)94x-71x+2.4=23.1(392)75x-47x+0.3=11.5(393)53x-27x+0.6=47.4(394)14x-2x+3.3=60.9(395)93x-4x+3.2=65.5(396)12x-2x+2.3=48.3(397)9.7x-2.7x-0.4=62.6(398)0.9x-0.5x-0.4=29.2(399)4.7x-0.7x-4.6=35.4(400)4.6x-3.7x-3.1=13.1(401)7.1x-1.4x-3.2=19.6(402)3.4x-0.5x-1.6=15.8(403)2.7x-2.1x-1.5=4.5(404)9x-0.2x-2.1=68.3(405)8.6x-3.3x-2.7=29.1(406)60x-20x-4=60(407)25x-17x-4.4=25.2(408)75x-30x-0.8=30.7(409)57x-21x-1.2=60(410)46x-20x-2.9=38.7(411)88x-8x-4.3=51.7(412)97x-35x-4.3=45.3(413)48x-33x-4.6=17.9(414)11x-8x-3.1=22.1(415)20x+9×18=302(416)11x+2×16=65(417)4x+4×19=128(418)2x+2×58=224(419)3x+17×9=336(420)2x+5×7=133(421)10x+4×16=184(422)9x+2×61=275(423)18x+13×12=192(424)7x-16×5=95(425)2x-36×3=68(426)6x-8×10=82(427)4x-2×57=58(428)12x-19×3=27(429)2x-6×15=38(430)20x-3×38=26(431)8x-20×3=84(432)12x-22×6=48(433)1.3x+1×19=37.2(434)0.8x+0.6×30=37.2(435)1.5x+0.7×20=26(436)1x+0.2×19=15.8(437)0.5x+1.2×8=20.6(438)0.5x+1×13=31(439)0.5x+0.2×35=12(440)0.5x+0.8×19=29.7(441)1.3x+1.1×14=34.9(442)12x+7×1.8=21(443)32x+4×0.7=12.4(444)30x+15×0.6=15(445)13x+3×4.3=28.5(446)20x+44×0.4=35.6(447)7x+24×0.6=34(448)2x+2×2.9=14.2(449)25x+2×2.1=11.7(450)3x+26×0.3=9.6(451)2.3x-0.7×8=3.6(452)3.5x-0.4×32=1.2(453)2.8x-1.5×5=12.1(454)1.8x-2×2=10.4(455)0.6x-1.3×8=2.8(456)3.7x-0.2×24=13.7(457)2x-3.6×4=3.6(458)0.3x-0.2×22=5.5(459)0.3x-0.6×3=11.4(460)39x-4×1.6=13.1(461)32x-4×3.6=4.8(462)45x-21×0.3=2.7(463)26x-37×0.3=1.9(464)7x-39×0.3=7.9(465)3x-17×0.4=6.4(466)12x-33×0.2=6.6(467)30x-6×2.5=3(468)22x-3×3.1=1.7(469)5(2x+28)=170(470)2(5x+13)=196(471)7(4x+7)=133(472)2(x+29)=90(473)3(2x+14)=72(474)7(8x+7)=161(475)2(2x+20)=184(476)3(22x+17)=183(477)3(2x+13)=153(478)4(16x-8)=160(479)4(5x-32)=92(480)4(12x-6)=168(481)10(3x-34)=140(482)2(3x-22)=94(483)3(9x-4)=42(484)5(7x-45)=55(485)5(5x-30)=150(486)3(3x-31)=51(487)4(2.1x+1.6)=48.4(488)6(0.3x+2.3)=49.8(489)3(8x+0.2)=48.6(490)4(0.2x+1.2)=40.8(491)3(0.3x+0.2)=19.5(492)2(1.4x+1.4)=14(493)4(0.8x+3.7)=40.4(494)10(0.4x+0.2)=50(495)4(1.9x+0.8)=41.2(496)3(2.2x-6)=8.4(497)3(4.1x-8.4)=24(498)2(3.4x-6.6)=14(499)4(1.9x-7.5)=38.4(500)5(0.3x-5.1)=10.5(501)3(0.4x-9.4)=11.4(502)14(0.4x-9.4)=36.4(503)2(0.7x-1.1)=6.2(504)22(1.8x-5.8)=30.8(505)(3x+6)÷36=2(506)(15x+27)÷3=69(507)(16x+42)÷14=11(508)(8x+20)÷6=30(509)(x+48)÷9=8(510)(4x+20)÷6=20(511)(3x+45)÷6=21(512)(11x+6)÷4=7(513)(19x+49)÷8=18(514)(4x-7)÷9=5(515)(16x-22)÷2=117(516)(7x-8)÷32=5(517)(10x-45)÷7=15(518)(12x-48)÷12=6(519)(11x-5)÷10=5(520)(8x-44)÷6=30(521)(7x-22)÷45=2(522)(16x-40)÷40=1(523)(7.5x+1)÷4=11.5(524)(2.5x+8)÷5=9.1(525)(1.6x+2.1)÷3=8.7(526)(3.1x+4)÷19=0.7(527)(4.5x+2.2)÷28=0.4(528)(6.5x+4.8)÷7=4.4(529)(3.2x+1.6)÷20=0.4(530)(1.4x+5)÷2=6.7(531)(3.5x+7.5)÷2=12.5(532)(4.9x-9.7)÷23=3.2(533)(5.7x-1.4)÷35=1.1(534)(2.7x-7.3)÷11=4(535)(7.1x-1.8)÷38=0.7(536)(6.3x-5.9)÷5=15.2(537)(2.9x-8.5)÷5=7(538)(7.9x-9.3)÷23=2(539)(5.5x-8.8)÷4=19.8(540)(7.6x-3.2)÷3=4參考答案(1)x=72(2)x=15(3)x=18(4)x=72(5)x=45(6)x=76(7)x=69(8)x=62(9)x=95(10)x=93(11)x=80(12)x=42(13)x=94(14)x=81(15)x=71(16)x=73(17)x=76(18)x=50(19)x=9.7(20)x=1.1(21)x=4(22)x=7.5(23)x=4.1(24)x=2.8(25)x=4.9(26)x=2.6(27)x=0.6(28)x=7.1(29)x=4.4(30)x=8.2(31)x=7(32)x=6.2(33)x=9.4(34)x=5.4(35)x=7.2(36)x=6.3(37)x=85(38)x=26(39)x=81(40)x=28(41)x=59(42)x=27(43)x=55(44)x=17(45)x=21(46)x=18(47)x=23(48)x=35(49)x=29(50)x=28(51)x=32(52)x=18(53)x=9(54)x=40(55)x=6(56)x=9.4(57)x=6.4(58)x=4.4(59)x=0.3(60)x=5.8(61)x=1.9(62)x=2.3(63)x=6.3(64)x=4.2(65)x=1.7(66)x=0.7(67)x=4.6(68)x=0.8(69)x=2.6(70)x=5.9(71)x=4.1(72)x=4.2(73)x=8(74)x=32(75)x=16(76)x=17(77)x=3(78)x=73(79)x=6(80)x=7(81)x=14(82)x=88(83)x=23(84)x=4(85)x=2(86)x=62(87)x=5(88)x=5(89)x=4(90)x=7(91)x=3.7(92)x=0.2(93)x=0.5(94)x=0.7(95)x=0.2(96)x=0.3(97)x=1.3(98)x=1.2(99)x=0.2(100)x=34(101)x=13(102)x=2(103)x=3(104)x=27(105)x=49(106)x=26(107)x=3(108)x=2(109)x=32(110)x=14(111)x=5(112)x=3(113)x=8(114)x=33(115)x=3(116)x=5(117)x=29(118)x=192(119)x=72(120)x=32(121)x=154(122)x=33(123)x=126(124)x=42(125)x=105(126)x=144(127)x=10.8(128)x=14(129)x=12.6(130)x=9(131)x=18.4(132)x=19.6(133)x=15(134)x=17.6(135)x=6(136)x=2(137)x=65(138)x=39(139)x=4(140)x=11(141)x=10(142)x=17(143)x=2(144)x=2(145)x=4(146)x=9(147)x=21(148)x=70(149)x=15(150)x=17(151)x=73(152)x=5(153)x=2(154)x=0.2(155)x=1.3(156)x=1.3(157)x=1.6(158)x=0.2(159)x=8.3(160)x=0.2(161)x=0.6(162)x=0.3(163)x=24(164)x=12(165)x=90(166)x=21(167)x=57(168)x=6(169)x=8(170)x=11(171)x=37(172)x=0.4(173)x=1.6(174)x=0.4(175)x=0.4(176)x=0.2(177)x=3.6(178)x=0.2(179)x=3.1(180)x=1.3(181)x=6(182)x=6(183)x=7(184)x=65(185)x=30(186)x=3(187)x=4(188)x=34(189)x=2(190)x=4(191)x=9(192)x=21(193)x=9(194)x=15(195)x=10(196)x=10(197)x=19(198)x=13(199)x=9(200)x=84(201)x=6(202)x=24(203)x=7(204)x=53(205)x=6(206)x=2(207)x=4(208)x=2(209)x=13(210)x=3(211)x=38(212)x=21(213)x=2(214)x=31(215)x=4(216)x=3(217)x=1.2(218)x=0.2(219)x=0.2(220)x=0.2(221)x=0.2(222)x=7.9(223)x=4(224)x=2.9(225)x=3.7(226)x=35(227)x=8(228)x=2(229)x=17(230)x=39(231)x=14(232)x=43(233)x=2(234)x=5(235)x=0.3(236)x=0.4(237)x=0.2(238)x=0.7(239)x=2.9(240)x=4.6(241)x=1.3(242)x=0.9(243)x=0.3(244)x=3(245)x=5(246)x=2(247)x=2(248)x=8(249)x=68(250)x=9(251)x=2(252)x=38(253)x=7(254)x=7(255)x=88(256)x=2(257)x=20(258)x=42(259)x=32(260)x=20(261)x=32(262)x=0.2(263)x=4.8(264)x=0.7(265)x=0.7(266)x=9.5(267)x=4.2(268)x=0.3(269)x=0.3(270)x=0.6(271)x=8(272)x=4(273)x=15(274)x=2(275)x=8(276)x=29(277)x=11(278)x=2(279)x=21(280)x=5(281)x=10(282)x=10(283)x=27(284)x=7(285)x=6(286)x=20(287)x=4(288)x=7(289)x=10(290)x=15(291)x=5(292)x=8(293)x=23(294)x=2(295)x=7(296)x=18(297)x=11(298)x=52(299)x=11(300)x=6(301)x=8(302)x=5(303)x=4(304)x=3(305)x=76(306)x=25(307)x=15(308)x=8(309)x=2(310)x=15(311)x=18(312)x=5(313)x=24(314)x=2(315)x=15(316)x=10(317)x=11(318)x=9(319)x=18(320)x=6(321)x=19(322)x=25(323)x=7(324)x=22(325)x=17(326)x=6(327)x=5(328)x=18(329)x=14(330)x=11(331)x=6(332)x=9(333)x=13(334)x=5(335)x=9(336)x=4(337)x=16(338)x=10(339)x=9(340)x=17(341)x=21(342)x=9(343)x=8(344)x=6(345)x=26(346)x=10(347)x=17(348)x=6(349)x=11(350)x=11(351)x=17(352)x=0.2(353)x=0.5(354)x=1(355)x=2.5(356)x=2.4(357)x=1.2(358)x=1(359)x=0.9(360)x=0.4(361)x=10(362)x=14(363)x=20(364)x=7(365)x=2(366)x=9(367)x=13(368)x=18(369)x=10(370)x=0.4(371)x=4.3(372)x=1(373)x=0.9(374)x=1.4(375)x=1.1(376)x=2.1(377)x=0.5(378)x=1(379)x=13(380)x=3(381)x=10(382)x=4(383)x=9(384)x=2(385)x=4(386)x=9(387)x=6(388)x=0.9(389)x=3.9(390)x=0.9(391)x=0.9(392)x=0.4(39