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+31=80(2)x+47=60(3)x+11=48(4)x+59=103(5)x+7=10(6)x+92=132(7)x+2=90(8)x+45=76(9)x+12=65(10)x-9=32(11)x-16=48(12)x-24=68(13)x-49=33(14)x-11=46(15)x-51=28(16)x-44=44(17)x-76=15(18)x-47=25(19)x+0.3=8.8(20)x+1.1=3.3(21)x+2=11.9(22)x+1.3=4.6(23)x+1.8=4.2(24)x+2.3=10.6(25)x+6.2=15.5(26)x+9.7=17.5(27)x+0.8=9.5(28)x-8=1.7(29)x-4.9=1.4(30)x-7.2=2(31)x-1.3=1.4(32)x-3.9=2.2(33)x-2.7=3.2(34)x-3.3=6.6(35)x-1=1.6(36)x-6.3=1.2(37)50+x=79(38)39+x=137(39)49+x=73(40)5+x=15(41)58+x=94(42)48+x=132(43)37+x=102(44)43+x=61(45)42+x=74(46)96-x=74(47)88-x=31(48)59-x=20(49)90-x=62(50)75-x=40(51)45-x=12(52)98-x=88(53)85-x=44(54)59-x=11(55)0.7+x=6.4(56)4.2+x=4.7(57)7.7+x=16.3(58)7.1+x=16.9(59)1.8+x=5.7(60)3+x=12.4(61)3.7+x=12.7(62)8.9+x=15.5(63)0.3+x=7.4(64)5.6-x=4.3(65)4.6-x=3.2(66)7.3-x=7(67)8.9-x=3.4(68)9.2-x=7.4(69)8-x=6.9(70)3.6-x=3(71)6.8-x=4.2(72)7.2-x=6.6(73)13x=52(74)2x=50(75)39x=195(76)15x=195(77)40x=80(78)15x=150(79)7x=119(80)11x=99(81)7x=112(82)0.3x=7.5(83)0.3x=3.3(84)2.4x=7.2(85)0.3x=15(86)0.3x=13.2(87)1.6x=6.4(88)0.5x=5.5(89)1.1x=12.1(90)5.6x=16.8(91)15x=9(92)19x=5.7(93)4x=16.4(94)8x=4.8(95)4x=2(96)15x=10.5(97)3x=15.3(98)18x=18(99)6x=19.2(100)195÷x=15(101)138÷x=3(102)136÷x=8(103)116÷x=29(104)115÷x=23(105)154÷x=2(106)168÷x=42(107)120÷x=20(108)22÷x=11(109)6.6÷x=0.3(110)2.4÷x=0.3(111)16.5÷x=0.5(112)14÷x=0.5(113)9.9÷x=3.3(114)19.2÷x=1.2(115)2.7÷x=0.9(116)8.8÷x=0.8(117)13.6÷x=3.4(118)x÷13=9(119)x÷12=3(120)x÷63=3(121)x÷36=3(122)x÷10=15(123)x÷16=8(124)x÷9=17(125)x÷4=36(126)x÷5=36(127)x÷11=1.5(128)x÷12=1.1(129)x÷12=0.3(130)x÷2=3.2(131)x÷14=0.6(132)x÷3=4.9(133)x÷40=0.2(134)x÷10=0.6(135)x÷16=1(136)6x+56=98(137)2x+15=171(138)14x+49=189(139)2x+52=96(140)11x+33=187(141)4x+58=154(142)2x+54=244(143)24x+18=90(144)15x+30=210(145)2x-30=166(146)45x-12=123(147)4x-11=41(148)2x-22=40(149)42x-23=61(150)25x-27=48(151)43x-14=115(152)28x-20=120(153)2x-33=153(154)8x+2.7=20.3(155)13x+5.4=19.7(156)99x+1.9=21.7(157)13x+1.2=10.3(158)5x+3.6=14.6(159)63x+5.4=18(160)38x+1.1=16.3(161)3x+1.8=13.5(162)7x+3.5=9.8(163)1.2x+4.6=19(164)0.9x+4=14.8(165)0.2x+3.8=15.6(166)5.2x+5.8=21.4(167)0.2x+2.4=14(168)0.2x+4=7.2(169)6.9x+1.1=14.9(170)0.4x+5.8=14.2(171)3.2x+4.4=23.6(172)5x-2.5=14(173)7x-5.9=13(174)19x-4.2=14.8(175)9x-1.1=2.5(176)8x-5.4=6.6(177)5x-3.2=15.3(178)45x-1.4=16.6(179)30x-5=10(180)17x-1.8=8.4(181)0.8x-5.8=5.4(182)0.5x-3.4=10.6(183)0.8x-4.4=13.2(184)0.2x-4.9=5.7(185)1.4x-5.5=12.7(186)0.2x-5.5=7.3(187)2.1x-5.1=9.6(188)1.9x-1.1=10.3(189)0.5x-1.6=8.9(190)171+53x=330(191)32+21x=221(192)171+59x=348(193)135+17x=288(194)121+3x=133(195)40+3x=46(196)56+22x=144(197)116+3x=182(198)50+2x=250(199)108-49x=10(200)154-4x=98(201)198-2x=134(202)62-8x=22(203)166-8x=70(204)144-7x=74(205)187-10x=47(206)180-21x=96(207)109-42x=25(208)1.8+2.8x=18.6(209)6.7+9.8x=26.3(210)4.7+4.7x=23.5(211)1.5+0.2x=5.9(212)19.6+8.7x=37(213)2.5+6.4x=15.3(214)4.5+2.1x=23.4(215)16+2.6x=29(216)17.5+0.3x=19.3(217)11.3+2x=13.7(218)16.1+12x=18.5(219)13.8+3x=21.9(220)18.6+7x=21.4(221)1.7+8x=4.9(222)17.3+6x=30.5(223)7.2+29x=21.7(224)16.1+46x=29.9(225)19.1+43x=27.7(226)13.4-0.2x=4(227)17.8-0.2x=11.6(228)13-0.2x=6.6(229)16.3-0.7x=7.9(230)18.3-0.8x=10.3(231)19.7-0.3x=6.2(232)16.5-0.4x=2.9(233)13.4-3.1x=1(234)19.8-1.3x=8.1(235)16.2-3x=12(236)18.2-7x=7(237)19.4-6x=8(238)18.2-11x=5(239)11.3-4x=4.1(240)14.7-2x=14.1(241)8.2-2x=2.4(242)12.1-8x=1.7(243)16.7-4x=4.3(244)2x÷11=16(245)3x÷39=4(246)3x÷4=18(247)4x÷78=2(248)4x÷2=18(249)39x÷6=13(250)12x÷4=21(251)24x÷36=4(252)52x÷4=26(253)0.7x÷3=2.1(254)0.8x÷52=0.2(255)0.6x÷12=0.7(256)1.6x÷64=0.2(257)0.2x÷14=0.7(258)9.6x÷24=0.8(259)0.7x÷6=2.1(260)1.6x÷40=0.4(261)0.4x÷36=0.2(262)22x÷11=0.8(263)8x÷24=0.4(264)7x÷5=3.5(265)7x÷3=3.5(266)2x÷26=0.6(267)72x÷3=4.8(268)4x÷6=0.8(269)34x÷68=0.2(270)3x÷6=2.6(271)16x+15x=341(272)8x+15x=276(273)4x+2x=192(274)12x+13x=200(275)9x+8x=34(276)6x+5x=110(277)17x+2x=114(278)11x+2x=52(279)12x+13x=100(280)7x-3x=68(281)6x-3x=12(282)13x-3x=120(283)17x-10x=77(284)7x-2x=90(285)18x-6x=60(286)9x-4x=15(287)8x-3x=90(288)4x-2x=12(289)5.7x+7.3x=52(290)3.8x+4.6x=16.8(291)5.4x+1.5x=34.5(292)5x+0.2x=52(293)3.1x+2.1x=140.4(294)0.2x+1x=112.8(295)3.1x+8.3x=136.8(296)0.5x+5.5x=48(297)2.3x+3.5x=98.6(298)1.4x-0.3x=74.8(299)4.3x-1.6x=56.7(300)2.1x-0.3x=46.8(301)1x-0.4x=38.4(302)8.1x-4.3x=45.6(303)9.6x-4.9x=32.9(304)2.8x-2.4x=2.4(305)2x-0.8x=13.2(306)2.7x-0.7x=22(307)4x+8x+43=259(308)17x+14x+23=271(309)2x+13x+13=88(310)16x+17x+2=365(311)5x+9x+10=248(312)18x+10x+12=180(313)3x+17x+19=159(314)8x+7x+11=356(315)16x+18x+17=187(316)5x+6x-28=214(317)2x+14x-5=187(318)2x+9x-19=36(319)6x+8x-37=313(320)12x+6x-28=242(321)17x+19x-13=275(322)4x+5x-30=33(323)13x+10x-40=121(324)5x+9x-26=184(325)11x-5x+20=68(326)19x-11x+3=35(327)17x-3x+13=41(328)8x-5x+9=78(329)9x-2x+37=114(330)6x-2x+25=61(331)9x-4x+47=132(332)8x-2x+2=44(333)15x-2x+40=131(334)6x-2x-26=94(335)9x-5x-2=26(336)11x-4x-12=23(337)8x-2x-20=94(338)11x-4x-25=94(339)16x-4x-5=91(340)18x-10x-3=53(341)16x-2x-46=10(342)12x-5x-29=13(343)2.5x+1.6x+1.7=71.4(344)4.7x+8.3x+0.2=130.2(345)7.3x+4.9x+3.3=76.5(346)1.1x+8.2x+4.3=41.5(347)2.4x+9.3x+1.4=106.7(348)6.9x+5.9x+1.7=155.3(349)0.2x+1.2x+3.5=91.7(350)4.9x+1.4x+3.3=60(351)5.2x+1.8x+2.7=65.7(352)27x+2x+2.1=74.6(353)71x+44x+2.9=163.9(354)85x+37x+4.6=53.4(355)8x+3x+4.9=102.8(356)66x+96x+1.9=50.5(357)53x+25x+3.8=35(358)6x+5x+2.1=70.3(359)15x+7x+0.8=86.6(360)58x+12x+3.8=122.8(361)9.1x+3.4x-4.4=33.1(362)2.5x+1x-1.4=93.1(363)5.6x+2.9x-0.5=16.5(364)3x+0.9x-2.2=118.7(365)5.8x+9.2x-3.3=41.7(366)6.9x+9.6x-4.2=45.3(367)3.2x+2x-4.9=52.3(368)4x+2.7x-4.3=123(369)8.8x+2.7x-0.8=68.2(370)98x+7x-0.7=93.8(371)24x+37x-2.9=27.6(372)34x+45x-2.7=171.1(373)60x+12x-2.7=62.1(374)49x+45x-1.9=101.5(375)80x+2x-4.2=94.2(376)27x+23x-3.5=21.5(377)95x+17x-4.7=96.1(378)73x+53x-3.1=59.9(379)5.4x-4.6x+1.9=3.5(380)3.6x-2.1x+0.9=6.9(381)5.3x-0.9x+4.2=57(382)9.6x-7x+2=28(383)1.6x-0.3x+3=47.2(384)4.3x-2.3x+4.2=46.2(385)6.1x-1x+3.2=59.3(386)4.1x-3.3x+4.1=20.9(387)3.8x-1.4x+2=33.2(388)64x-52x+3.2=6.8(389)28x-8x+0.7=70.7(390)33x-7x+1.4=50.8(391)45x-31x+0.3=10.1(392)49x-31x+3.6=12.6(393)10x-4x+2.5=33.1(394)81x-72x+2.4=11.4(395)73x-26x+3=35.9(396)51x-9x+1.5=47.7(397)4x-3.1x-4.6=9.8(398)6.8x-0.2x-0.8=19(399)9.2x-4x-3=17.8(400)6.8x-0.9x-4.7=54.3(401)8.9x-3.1x-0.7=57.3(402)1.2x-0.7x-2=17.5(403)8x-7.4x-3.1=2.9(404)1.8x-1.6x-4.9=3.9(405)1.2x-0.4x-2.4=16.8(406)73x-67x-2.8=5(407)14x-7x-3=11.7(408)72x-16x-2.6=36.6(409)80x-76x-2=2(410)63x-19x-0.3=17.3(411)49x-27x-4.3=28.7(412)96x-58x-4.5=10.7(413)97x-78x-2.3=9.1(414)95x-25x-1.5=26.5(415)11x+5×3=180(416)21x+83×2=208(417)9x+4×39=201(418)7x+6×18=248(419)8x+2×24=232(420)2x+44×4=214(421)17x+8×6=150(422)21x+86×2=298(423)5x+14×6=114(424)20x-27×3=59(425)2x-3×16=68(426)19x-90×2=10(427)18x-2×15=78(428)3x-9×4=102(429)28x-10×5=118(430)5x-23×7=14(431)3x-6×18=15(432)12x-2×62=32(433)3.1x+3.7×2=13.6(434)2.8x+0.3×43=32.5(435)0.6x+0.3×41=30.9(436)0.2x+2.6×4=13.8(437)0.4x+4.8×3=27.2(438)0.2x+1.9×5=17.7(439)1.1x+1.5×10=17.2(440)0.4x+0.2×25=13(441)3x+2.5×2=14(442)15x+10×1.6=20.5(443)3x+10×0.4=13.9(444)2x+4×3.6=18.6(445)10x+10×1.2=32(446)29x+8×1.3=24.9(447)3x+4×1.3=17.2(448)7x+10×0.7=22.4(449)2x+3×4.1=20.3(450)4x+6×3.2=31.6(451)2.1x-0.3×4=13.5(452)1x-0.4×10=2(453)3.1x-0.8×2=4.6(454)0.7x-0.4×12=8.5(455)0.2x-0.2×29=2.4(456)0.7x-0.2×18=11.8(457)1x-0.2×35=1(458)0.8x-1.6×2=16(459)1.6x-2.2×6=6(460)5x-2×2=6(461)38x-2×2=3.6(462)6x-20×0.2=6.2(463)18x-3×4.6=6(464)25x-2×1.4=7.2(465)13x-4×0.9=12(466)14x-3×2.5=5.1(467)7x-19×0.6=1.2(468)21x-4×1.6=4.1(469)4(x+23)=164(470)2(9x+47)=166(471)13(x+7)=169(472)2(7x+26)=150(473)2(9x+34)=176(474)5(x+6)=170(475)2(9x+19)=200(476)4(x+5)=52(477)3(x+30)=111(478)3(9x-40)=69(479)3(2x-27)=105(480)4(4x-15)=100(481)2(7x-9)=38(482)3(28x-48)=108(483)3(2x-38)=144(484)10(4x-23)=170(485)3(2x-23)=147(486)7(16x-23)=175(487)2(0.8x+4.3)=13.4(488)2(6.1x+6.5)=37.4(489)3(0.8x+8.2)=29.4(490)2(1.9x+4.5)=47(491)2(0.4x+4.5)=13.8(492)5(1.1x+6.4)=43(493)3(0.3x+7.6)=31.8(494)4(1.7x+3)=39.2(495)6(0.3x+0.6)=16.2(496)8(1.5x-3.8)=41.6(497)10(5.2x-7.7)=27(498)23(2.7x-9)=41.4(499)17(0.7x-8.3)=25.5(500)2(3.2x-3.2)=44.8(501)21(2.3x-7.8)=29.4(502)7(4.2x-6)=46.2(503)5(0.7x-8.3)=14.5(504)4(0.3x-1.8)=44.4(505)(2x+4)÷9=4(506)(5x+47)÷2=41(507)(11x+9)÷4=16(508)(2x+29)÷3=19(509)(3x+32)÷14=7(510)(17x+26)÷10=6(511)(11x+9)÷2=32(512)(13x+31)÷4=24(513)(x+9)÷4=9(514)(9x-33)÷2=105(515)(3x-22)÷47=1(516)(3x-6)÷6=11(517)(15x-25)÷31=5(518)(13x-40)÷2=32(519)(8x-35)÷15=3(520)(16x-37)÷7=29(521)(7x-22)÷24=2(522)(6x-25)÷13=5(523)(2.9x+2.2)÷18=2.7(524)(5.5x+0.2)÷18=4.9(525)(0.4x+9.8)÷10=1.3(526)(0.9x+4.3)÷10=1.6(527)(2.4x+6.4)÷8=5.9(528)(9.8x+5.4)÷3=31.2(529)(1.2x+4.4)÷8=2.2(530)(3.6x+4.2)÷15=3.4(531)(1.7x+2.1)÷2=12.1(532)(2.8x-7.7)÷7=2.5(533)(4.7x-5.1)÷6=1.5(534)(7.4x-0.2)÷2=44.3(535)(8.8x-1.1)÷3=23.1(536)(2.9x-2.4)÷17=0.2(537)(0.6x-5.6)÷29=0.2(538)(4.9x-1.8)÷4=11.8(539)(0.6x-6.9)÷33=0.1(540)(4.4x-2.8)÷34=1.6參考答案(1)x=49(2)x=13(3)x=37(4)x=44(5)x=3(6)x=40(7)x=88(8)x=31(9)x=53(10)x=41(11)x=64(12)x=92(13)x=82(14)x=57(15)x=79(16)x=88(17)x=91(18)x=72(19)x=8.5(20)x=2.2(21)x=9.9(22)x=3.3(23)x=2.4(24)x=8.3(25)x=9.3(26)x=7.8(27)x=8.7(28)x=9.7(29)x=6.3(30)x=9.2(31)x=2.7(32)x=6.1(33)x=5.9(34)x=9.9(35)x=2.6(36)x=7.5(37)x=29(38)x=98(39)x=24(40)x=10(41)x=36(42)x=84(43)x=65(44)x=18(45)x=32(46)x=22(47)x=57(48)x=39(49)x=28(50)x=35(51)x=33(52)x=10(53)x=41(54)x=48(55)x=5.7(56)x=0.5(57)x=8.6(58)x=9.8(59)x=3.9(60)x=9.4(61)x=9(62)x=6.6(63)x=7.1(64)x=1.3(65)x=1.4(66)x=0.3(67)x=5.5(68)x=1.8(69)x=1.1(70)x=0.6(71)x=2.6(72)x=0.6(73)x=4(74)x=25(75)x=5(76)x=13(77)x=2(78)x=10(79)x=17(80)x=9(81)x=16(82)x=25(83)x=11(84)x=3(85)x=50(86)x=44(87)x=4(88)x=11(89)x=11(90)x=3(91)x=0.6(92)x=0.3(93)x=4.1(94)x=0.6(95)x=0.5(96)x=0.7(97)x=5.1(98)x=1(99)x=3.2(100)x=13(101)x=46(102)x=17(103)x=4(104)x=5(105)x=77(106)x=4(107)x=6(108)x=2(109)x=22(110)x=8(111)x=33(112)x=28(113)x=3(114)x=16(115)x=3(116)x=11(117)x=4(118)x=117(119)x=36(120)x=189(121)x=108(122)x=150(123)x=128(124)x=153(125)x=144(126)x=180(127)x=16.5(128)x=13.2(129)x=3.6(130)x=6.4(131)x=8.4(132)x=14.7(133)x=8(134)x=6(135)x=16(136)x=7(137)x=78(138)x=10(139)x=22(140)x=14(141)x=24(142)x=95(143)x=3(144)x=12(145)x=98(146)x=3(147)x=13(148)x=31(149)x=2(150)x=3(151)x=3(152)x=5(153)x=93(154)x=2.2(155)x=1.1(156)x=0.2(157)x=0.7(158)x=2.2(159)x=0.2(160)x=0.4(161)x=3.9(162)x=0.9(163)x=12(164)x=12(165)x=59(166)x=3(167)x=58(168)x=16(169)x=2(170)x=21(171)x=6(172)x=3.3(173)x=2.7(174)x=1(175)x=0.4(176)x=1.5(177)x=3.7(178)x=0.4(179)x=0.5(180)x=0.6(181)x=14(182)x=28(183)x=22(184)x=53(185)x=13(186)x=64(187)x=7(188)x=6(189)x=21(190)x=3(191)x=9(192)x=3(193)x=9(194)x=4(195)x=2(196)x=4(197)x=22(198)x=100(199)x=2(200)x=14(201)x=32(202)x=5(203)x=12(204)x=10(205)x=14(206)x=4(207)x=2(208)x=6(209)x=2(210)x=4(211)x=22(212)x=2(213)x=2(214)x=9(215)x=5(216)x=6(217)x=1.2(218)x=0.2(219)x=2.7(220)x=0.4(221)x=0.4(222)x=2.2(223)x=0.5(224)x=0.3(225)x=0.2(226)x=47(227)x=31(228)x=32(229)x=12(230)x=10(231)x=45(232)x=34(233)x=4(234)x=9(235)x=1.4(236)x=1.6(237)x=1.9(238)x=1.2(239)x=1.8(240)x=0.3(241)x=2.9(242)x=1.3(243)x=3.1(244)x=88(245)x=52(246)x=24(247)x=39(248)x=9(249)x=2(250)x=7(251)x=6(252)x=2(253)x=9(254)x=13(255)x=14(256)x=8(257)x=49(258)x=2(259)x=18(260)x=10(261)x=18(262)x=0.4(263)x=1.2(264)x=2.5(265)x=1.5(266)x=7.8(267)x=0.2(268)x=1.2(269)x=0.4(270)x=5.2(271)x=11(272)x=12(273)x=32(274)x=8(275)x=2(276)x=10(277)x=6(278)x=4(279)x=4(280)x=17(281)x=4(282)x=12(283)x=11(284)x=18(285)x=5(286)x=3(287)x=18(288)x=6(289)x=4(290)x=2(291)x=5(292)x=10(293)x=27(294)x=94(295)x=12(296)x=8(297)x=17(298)x=68(299)x=21(300)x=26(301)x=64(302)x=12(303)x=7(304)x=6(305)x=11(306)x=11(307)x=18(308)x=8(309)x=5(310)x=11(311)x=17(312)x=6(313)x=7(314)x=23(315)x=5(316)x=22(317)x=12(318)x=5(319)x=25(320)x=15(321)x=8(322)x=7(323)x=7(324)x=15(325)x=8(326)x=4(327)x=2(328)x=23(329)x=11(330)x=9(331)x=17(332)x=7(333)x=7(334)x=30(335)x=7(336)x=5(337)x=19(338)x=17(339)x=8(340)x=7(341)x=4(342)x=6(343)x=17(344)x=10(345)x=6(346)x=4(347)x=9(348)x=12(349)x=63(350)x=9(351)x=9(352)x=2.5(353)x=1.4(354)x=0.4(355)x=8.9(356)x=0.3(357)x=0.4(358)x=6.2(359)x=3.9(360)x=1.7(361)x=3(362)x=27(363)x=2(364)x=31(365)x=3(366)x=3(367)x=11(368)x=19(369)x=6(370)x=0.9(371)x=0.5(372)x=2.2(373)x=0.9(374)x=1.1(375)x=1.2(376)x=0.5(377)x=0.9(378)x=0.5(379)x=2(380)x=4(381)x=12(382)x=10(383)x=34(384)x=21(385)x=11(386)x=21(387)x=13(388)x=0.3(389)x=3.5(390)x=1.9(391)x=0.7