五年級數(shù)學(方程)專項練習題及答案匯編

五年級數(shù)學(方程)專項練習題及答案匯編(1)8(0.2x-4.4)=35.2(2)4(0.3x-3.1)=28.4(3)17x-5x-10=110(4)0.6x-0.4×35=5.2(5)10x+9x=304(6)6+x=9.5(7)6x-2.3=5.5(8)(9x+27)÷18=3(9)x+28=125(10)74+10x=154(11)18.4÷x=4.6(12)7x-52=95(13)x÷29=5(14)2.8x+6.5x+4.3=32.2(15)25(0.7x-6.8)=40(16)8(x+9)=136(17)4x+27×4=164(18)5.4x+5x-4.1=27.1(19)15x-5x+0.8=26.8(20)2.8x-0.3x=75(21)x+58=103(22)36x+23x-0.8=93.6(23)19.6-4x=18.4(24)145-9x=55(25)58x+46x-3.8=110.6(26)x÷14=0.5(27)1.5x+2.7=16.2(28)7.9x+2.8x-3.8=60.4(29)14x+50=78(30)10x÷5=0.4(31)9x+2x=77(32)5.2x÷4=2.6(33)28x-19×0.7=6.3(34)16.4-0.4x=12(35)2.1x-0.2x+4.6=74.9(36)5(2x-13)=75(37)15x+10x-43=32(38)2x-49=93(39)0.8x=18.4(40)0.5x+2.2×4=26.3(41)6.1x-0.4x+4.7=16.1(42)10x+5x-24=171(43)99+2x=201(44)14.3+3x=18.5(45)8x+2.8=17.2(46)61x-39x-2.6=30.4(47)(6x-19)÷11=1(48)6.5x-3.1x=34(49)8.7÷x=0.3(50)39x-3x-2.6=19(51)0.2x+1.8=20.8(52)4.8x-3.2x+2.2=19.8(53)39+x=83(54)17.1+0.2x=23.5(55)25x÷35=0.5(56)2x=13.4(57)4x+11x=180(58)14.3-2x=6.5(59)8x-53=35(60)2.8x+5.7x=119(61)x+11=52(62)2.5x-1.7=5.8(63)(4x-28)÷16=3(64)3x=24(65)19.4-0.2x=13(66)8.4x-7.8x=4.2(67)2÷x=1(68)15.2-2.9x=3.6(69)1.3x+1.4x-1.5=144.3(70)2.2x-2.5×2=1.6(71)15x-3x+9=69(72)9x=4.5(73)3(2x+28)=162(74)98x-25=171(75)10x+19x-15=188(76)4.3+x=13.3(77)3.8x-1.8x+1.5=33.5(78)(9x-24)÷48=4(79)12x÷27=0.4(80)156÷x=4(81)10x-8x=34(82)77x+54x+3.5=108.3(83)1.1x=4.4(84)18x+10×0.7=23.2(85)58x+84x-2.1=154.1(86)8.5x+8.4x-0.2=118.1(87)22x-4.2=15.6(88)10x+8x+37=289(89)14x+17x=310(90)190÷x=19(91)171-30x=21(92)8x-3x+4=119(93)144÷x=16(94)6x+2×3.8=26.2(95)17.4-32x=1.4(96)10x+4.8=13.8(97)(6x+28)÷7=10(98)1.5x+1.6x-1.5=91.5(99)19.7-20x=3.7(100)4.3x=12.9(101)36x+29=101(102)95÷x=19(103)71-8x=39(104)10.2-0.9x=8.4(105)0.2x+1.5×12=27.4(106)14+11x=21.7(107)16x=17.6(108)15.5-0.5x=11.5(109)37x-58=53(110)2+x=5.1(111)1.8x+2.8=15.4(112)13x+3x+29=253(113)23x+13×1.1=28.1(114)0.5x+3.7=7.2(115)x÷40=4(116)24x+8x+2.6=63.4(117)65-x=46(118)80+x=111(119)4x-2x=40(120)9.6+30x=21.6(121)6x-2x=68(122)3.7x=18.5(123)x÷20=0.9(124)4x=10.8(125)84-x=48(126)49x+51x+3.7=113.7(127)(12x-6)÷3=58(128)0.9x+0.9×18=27.9(129)(1.6x+7.5)÷19=0.9(130)19x-14x=50(131)44x÷12=1.1(132)13x-10×12=62(133)2(9.7x-9)=20.8(134)37+x=42(135)13x-3x-4.2=63.8(136)x÷6=0.3(137)0.9x+0.5x-4.6=80.8(138)48+x=63(139)17x-35×2=32(140)x÷61=0.2(141)(11x-46)÷3=58(142)58x-30x+3.8=15(143)10x+16×6=176(144)2x+3x+7=272(145)1.4x+5.2=15(146)9.6x-1.1x-3.8=81.2(147)8x-3x-35=90(148)(7x+6.5)÷5=9.7(149)3.3x-2x-3.5=32.9(150)2.3x+2.9x=88.4(151)2x-14×2=98(152)x-43=25(153)3.2x+3.1x=12.6(154)24x+5×2.4=21.6(155)2x=8(156)18x-7x-43=23(157)x+2=52(158)(5.6x+0.6)÷2=5.9(159)(3.5x-3.6)÷8=4.8(160)13x-2x=99(161)6x-2x-43=21(162)60x÷30=0.4(163)28x-3x+4.7=87.2(164)15x-13x+33=51(165)8x-13×0.5=9.5(166)11.5+2x=17.3(167)3(1.3x+2.2)=22.2(168)8x-6×0.4=16.8(169)2.3x+4.7x+1.3=50.3(170)75x-35x+0.5=36.5(171)x-2.1=6.1(172)11x-2x+47=101(173)(9.3x-8.2)÷14=3.4(174)8x+6x+3.5=107.1(175)9x+92×2=310(176)16(0.4x-3.3)=49.6(177)7x-50=48(178)3x+66×3=216(179)8.6-x=7.5(180)2x-49×3=31(181)7.5x-3.7x+1.9=24.7(182)12x÷10=6(183)6x+9x-13=317(184)8x-8×1.4=1.6(185)112-44x=24(186)9.6x-2.6x+1.3=71.3(187)6.1-x=2.5(188)3x-46×0.2=4.3(189)1.2x-3.3=2.7(190)x+8.8=9.1(191)0.7x-3.9=15.7(192)x-5=22(193)17x+4x=105(194)3x+4x+34=97(195)8x-3x+14=84(196)29x-9x+2.2=42.2(197)9x-5×8=59(198)8.4x=16.8(199)120÷x=20(200)54+x=75(201)4(14x+7)=196(202)38x+41=155(203)9.6x-2.9x-4.7=42.2(204)x-3.3=2(205)x+78=149(206)4x=36(207)(6.2x-5.4)÷2=28.3(208)49x+11×0.6=26.2(209)0.2+x=4.9(210)5.2x+1.1x+4.8=30(211)(8x+16)÷16=2(212)(4.7x-2.9)÷14=5.5(213)7.5x+4.4x=107.1(214)57x+65x-3.7=130.5(215)5x÷8=20(216)2x+7×0.6=6.6(217)5.1-1.4x=2.3(218)6x÷60=2(219)7.6x-3.5x=36.9(220)6x+27=159(221)39x+40x+2.2=18(222)83-x=37(223)12-0.3x=5.4(224)12.6-1.6x=9.4(225)25x-21×7=53(226)x+7=13.2(227)5x-0.4x-2.5=20.5(228)4x-3×3.1=7.9(229)3.6x÷12=1.5(230)16x-5x-12=120(231)0.4+x=6.3(232)0.9x+4.2=7.8(233)2x+3.1x=107.1(234)16.8÷x=2.8(235)18.3-2x=15.5(236)0.6x+1.1x+4.4=38.4(237)18.9÷x=2.1(238)1.5x+6x=75(239)16.3-2x=1.3(240)x+7=11.5(241)x-26=25(242)17x-4x-44=99(243)63x÷3=42(244)(8.4x+6)÷3=24.4(245)16x+7x+3.8=36(246)3(0.2x+1.4)=28.8(247)65x-13x+3.3=39.7(248)16x-7x=72(249)17.2+3x=24.1(250)2(2.4x-4.1)=35(251)x-44=10(252)5.2x-3.3x+0.9=35.1(253)1.3x=3.9(254)163-2x=121(255)8x-5x-2=37(256)6x-3x+28=91(257)4x+14x-41=85(258)12x+16x=308(259)14x-10x=28(260)x-1.8=7.7(261)42x÷14=9(262)(7x+22)÷10=12(263)15.6÷x=2.6(264)12÷x=3(265)1.1x-4.6=11.9(266)x+1=6.6(267)68+x=110(268)2x+4.7=15.3(269)32x÷16=1.2(270)x+3.5=11.1(271)0.2x=12.8(272)162-2x=114(273)54x+5x-4.9=101.3(274)15x+10x-34=116(275)x÷2=2.8(276)128+30x=188(277)146+51x=299(278)13x+9x=220(279)22x+11x+4.8=146.7(280)0.3x-2.9=10.3(281)x+45=109(282)4(3x-27)=96(283)3x-42=60(284)2x+12=58(285)3x+3.5=6.8(286)13x+31=96(287)46x-18x-2=31.6(288)14x-7x-0.8=38.4(289)x÷39=0.4(290)59-x=20(291)0.4x+3.3=13.7(292)(7x+21)÷6=35(293)x÷3=0.7(294)x-5.3=1.9(295)4x+3.2=5.6(296)2.5x+1.6×6=17.1(297)9.3-x=7.3(298)x-18=54(299)106-3x=28(300)5x-3x-28=26(301)4x-2×3=10.4(302)93x+88x-3.3=69.1(303)x÷15=5(304)(5.5x-9.2)÷2=39.4(305)1.8x-1.4x=6(306)13x+22×0.7=19.3(307)12+x=109(308)3x+23×8=223(309)x÷33=6(310)45x=180(311)34x=136(312)33x-17x-2.8=30.8(313)(3x+24)÷35=3(314)13x+28=197(315)2(x+16)=120(316)7x=182(317)28x÷4=2.1(318)6(20x-31)=174(319)3x-4×2.8=1.4(320)3(3.6x+6)=39.6(321)12+0.3x=15.9(322)4x+4×2.7=19.2(323)6.5-x=5(324)8(3x-9)=192(325)6.4+7x=12.7(326)2(14x+24)=132(327)0.4x-2.7×4=4.4(328)6x-2x-3=36.6(329)6x+7x+10=36(330)89x+22x+1.5=68.1(331)3.8x-1.7x=33.6(332)17.1+1.8x=31.5(333)2x-3.9=10.9(334)35x+22×0.7=22.4(335)9.3+x=17.2(336)11.8÷x=0.2(337)(8.7x+3)÷34=0.6(338)x+82=180(339)2(20x+4)=128(340)x+9.1=19(341)1.3x+2.5x+2.8=40.8(342)3(1.3x+4.3)=36.3(343)x+94=183(344)7x+6x-5=190(345)4.9x-1.9x+4.6=10.6(346)47+50x=197(347)2.3x+9.2x=69(348)4x+63×2=150(349)1.6x=8(350)17x-9x+2=90(351)21x-4×12=141(352)77x-40x+2.5=24.7(353)11x+6×11=253(354)3x=14.7(355)0.8x÷4=4(356)(1.7x-3.1)÷7=1.5(357)58-x=47(358)x-2.4=4.6(359)x-18=28(360)0.9x-1×2=3.4(361)1.1+11x=9.9(362)2(1.2x-5.4)=3.6(363)6x-2.7=14.1(364)(6x-3)÷3=53(365)85+16x=261(366)2x+7x+2=137(367)74-x=10(368)10.7+4x=26.7(369)188÷x=4(370)0.7x+2.6x-3=46.5(371)1.4x+0.9x+2.7=115.4(372)2.9x-0.2×3=5.2(373)2(0.7x+2.2)=26.8(374)16x-57=55(375)13x=39(376)4.2x-3.5x-1.5=9.7(377)33+7x=124(378)4x÷11=0.8(379)12x=19.2(380)3.9x-2.8×3=7.2(381)3.5x=7(382)18+2x=26(383)x-2.3=1.8(384)4x-2.1=16.3(385)(18x+14)÷2=97(386)2(8x+39)=190(387)1.3x-4.6=13.6(388)4x-2x-39=27(389)0.4x÷17=0.8(390)(5.1x+1)÷20=2.6(391)9x+21×8=312(392)x+76=127(393)(1.6x-3.2)÷28=0.8(394)3x+6x-11=178(395)18.4-5x=7.4(396)5.4x+1.1x-0.2=97.3(397)x÷3=46(398)13x=18.2(399)6x+3.7=20.5(400)4.3+2.3x=22.7(401)(7x+43)÷4=30(402)15x+77×2=334(403)4-x=2.4(404)190-15x=70(405)5.7+x=11.5(406)92+20x=252(407)0.2x+1.5×11=20.7(408)90+x=183(409)2(6x+14)=148(410)3x=9(411)126÷x=21(412)3.3x-2.3=10.9(413)3x+2x+32=307(414)2.8x-1.2×2=6(415)1.1x-0.7x=28.8(416)1.4x-0.2×9=13.6(417)x+2.4=11.7(418)4.6-x=2.4(419)x+0.7=7.9(420)13x+18x+46=201(421)2.5-x=2.2(422)11.4-3x=6.6(423)14x+16x=60(424)9.8-x=7.8(425)6.3x-2.9x-4.7=42.9(426)0.8x-0.4×31=2.8(427)x-20=41(428)(10x-32)÷38=6(429)19(0.2x+1)=26.6(430)0.6x÷12=1.5(431)(5x+9.9)÷13=7.3(432)0.3x+3.1×3=20.1(433)2.2x+3.2=16.4(434)0.4x-3.9=12.1(435)4x÷5=2.4(436)8.9x-0.7x-1.9=63.7(437)32x+5.4=11.8(438)13.8+24x=21(439)(7x-39)÷2=33(440)8.4x-4x+2.9=38.1(441)x÷7=14(442)2(2x+12)=64(443)3.4+x=9.8(444)x÷23=7(445)20x÷10=16(446)x÷20=4(447)79x+10x-4.6=102.2(448)4x÷36=3(449)11x+14x-48=202(450)0.4x+0.3×24=26.8(451)3(3x-6)=117(452)5x+1.1=21.1(453)35x+85x+3.8=99.8(454)8x-3x+44=89(455)16x-10x=66(456)0.4x÷92=0.2(457)x-2.2=4.3(458)11(12x-14)=110(459)10x-3x+22=127(460)84-x=61(461)x-8=55(462)6.3x+0.3x=39.6(463)0.8÷x=0.4(464)2(23x-46)=46(465)12x+6x+34=304(466)6.5x+0.9x+4.6=93.4(467)67-x=39(468)x-2.8=6.5(469)4x-21=95(470)4.4x-0.8x-0.5=53.5(471)49x-45x-3.6=2(472)18x÷21=6(473)74-x=22(474)22x+10x-1.8=20.6(475)8.2-x=1.1(476)(4.1x-6.3)÷15=4.5(477)2.1x+1.4x+3.4=111.9(478)79x+85x-2.6=30.2(479)196÷x=2(480)15x+18x=363(481)12x-9×5=111(482)(19x-29)÷5=36(483)8x-64×2=16(484)11x=8.8(485)1+2.5x=18.5(486)36x÷90=2(487)54x+5.3=21.5(488)0.3x+3×3=20.7(489)4.5+5x=14.5(490)16.7-3x=11.3(491)x+4.6=4.8(492)2.4x+0.5x-3.9=57(493)40x-34x+2=13.4(494)5(1.1x+0.3)=40(495)131-7x=89(496)5x-2x=111(497)56x÷21=0.8(498)(9.5x+7.2)÷32=2.6(499)23x-4.9=11.2(500)72+x=78(501)0.7x÷3=2.8(502)12(x-21)=156(503)4.2x-3x-3.6=18(504)17x-2.8=7.4(505)x-3.7=2.1(506)12.2-4x=4.2(507)(2.8x-9.7)÷15=0.1(508)0.3x+0.4×26=16.7(509)2x+28=34(510)10.4÷x=0.4(511)x÷47=0.2(512)8.4x-2.2x=18.6(513)5.2x+3.4x+3.3=54.9(514)7.5x÷50=0.3(515)9+x=9.4(516)(13x+10)÷6=45(517)2(0.5x+6)=20(518)13x+58=214(519)2x-7×0.8=1.2(520)13(1.1x-4.2)=16.9(521)2(0.4x+5.7)=13(522)0.3x-1.7=15.7(523)17(4x-33)=187(524)6.4+1.3x=12.9(525)3(3.3x-4)=27.6(526)3x=57(527)0.9x+5.4=7.2(528)x÷34=5(529)2x=12.6(530)4.2x+7.6x=70.8(531)161+6x=281(532)(1.9x+3.2)÷36=0.3(533)5x-1.9x=9.3(534)6x-2.7=9.9(535)72x-3.1=11.3(536)x-8=26(537)x÷85=0.2(538)38x-23x-2.7=30.3(539)59x-2x+2.7=31.2(540)7.6+4.8x=17.2參考答案(1)x=44(2)x=34(3)x=10(4)x=32(5)x=16(6)x=3.5(7)x=1.3(8)x=3(9)x=97(10)x=8(11)x=4(12)x=21(13)x=145(14)x=3(15)x=12(16)x=8(17)x=14(18)x=3(19)x=2.6(20)x=30(21)x=45(22)x=1.6(23)x=0.3(24)x=10(25)x=1.1(26)x=7(27)x=9(28)x=6(29)x=2(30)x=0.2(31)x=7(32)x=2(33)x=0.7(34)x=11(35)x=37(36)x=14(37)x=3(38)x=71(39)x=23(40)x=35(41)x=2(42)x=13(43)x=51(44)x=1.4(45)x=1.8(46)x=1.5(47)x=5(48)x=10(49)x=29(50)x=0.6(51)x=95(52)x=11(53)x=44(54)x=32(55)x=0.7(56)x=6.7(57)x=12(58)x=3.9(59)x=11(60)x=14(61)x=41(62)x=3(63)x=19(64)x=8(65)x=32(66)x=7(67)x=2(68)x=4(69)x=54(70)x=3(71)x=5(72)x=0.5(73)x=13(74)x=2(75)x=7(76)x=9(77)x=16(78)x=24(79)x=0.9(80)x=39(81)x=17(82)x=0.8(83)x=4(84)x=0.9(85)x=1.1(86)x=7(87)x=0.9(88)x=14(89)x=10(90)x=10(91)x=5(92)x=23(93)x=9(94)x=3.1(95)x=0.5(96)x=0.9(97)x=7(98)x=30(99)x=0.8(100)x=3(101)x=2(102)x=5(103)x=4(104)x=2(105)x=47(106)x=0.7(107)x=1.1(108)x=8(109)x=3(110)x=3.1(111)x=7(112)x=14(113)x=0.6(114)x=7(115)x=160(116)x=1.9(117)x=19(118)x=31(119)x=20(120)x=0.4(121)x=17(122)x=5(123)x=18(124)x=2.7(125)x=36(126)x=1.1(127)x=15(128)x=13(129)x=6(130)x=10(131)x=0.3(132)x=14(133)x=2(134)x=5(135)x=6.8(136)x=1.8(137)x=61(138)x=15(139)x=6(140)x=12.2(141)x=20(142)x=0.4(143)x=8(144)x=53(145)x=7(146)x=10(147)x=25(148)x=6(149)x=28(150)x=17(151)x=63(152)x=68(153)x=2(154)x=0.4(155)x=4(156)x=6(157)x=50(158)x=2(159)x=12(160)x=9(161)x=16(162)x=0.2(163)x=3.3(164)x=9(165)x=2(166)x=2.9(167)x=4(168)x=2.4(169)x=7(170)x=0.9(171)x=8.2(172)x=6(173)x=6(174)x=7.4(175)x=14(176)x=16(177)x=14(178)x=6(179)x=1.1(180)x=89(181)x=6(182)x=5(183)x=22(184)x=1.6(185)x=2(186)x=10(187)x=3.6(188)x=4.5(189)x=5(190)x=0.3(191)x=28(192)x=27(193)x=5(194)x=9(195)x=14(196)x=2(197)x=11(198)x=2(199)x=6(200)x=21(201)x=3(202)x=3(203)x=7(204)x=5.3(205)x=71(206)x=9(207)x=10(208)x=0.4(209)x=4.7(210)x=4(211)x=2(212)x=17(213)x=9(214)x=1.1(215)x=32(216)x=1.2(217)x=2(218)x=20(219)x=9(220)x=22(221)x=0.2(222)x=46(223)x=22(224)x=2(225)x=8(226)x=6.2(227)x=5(228)x=4.3(229)x=5(230)x=12(231)x=5.9(232)x=4(233)x=21(234)x=6(235)x=1.4(236)x=20(237)x=9(238)x=10(239)x=7.5(240)x=4.5(241)x=51(242)x=11(243)x=2(244)x=8(245)x=1.4(246)x=41(247)x=0.7(248)x=8(249)x=2.3(250)x=9(251)x=54(252)x=18(253)x=3(254)x=21(255)x=13(256)x=21(257)x=7(258)x=11(259)x=7(260)x=9.5(261)x=3(262)x=14(263)x=6(264)x=4(265)x=15(266)x=5.6(267)x=42(268)x=5.3(269)x=0.6(270)x=7.6(271)x=64(272)x=24(273)x=1.8(274)x=6(275)x=5.6(276)x=2(277)x=3(278)x=10(279)x=4.3(280)x=44(281)x=64(282)x=17(283)x=34(284)x=23(285)x=1.1(286)x=5(287)x=1.2(288)x=5.6(289)x=15.6(290)x=39(291)x=26(292)x=27(293)x=2.1(294)x=7.2(295)x=0.6(296)x=3(297)x=2(298)x=72(299)x=26(300)x=27(301)x=4.1(302)x=0.4(303)x=75(304)x=16(305)x=15(306)x=0.3(307)x=97(308)x=13(309)x=198(310)x=4(311)x=4(312)x=2.1(313)x=27(314)x=13(315)x=44(316)x=26(317)x=0.3(318)x=3(319)x=4.2(320)x=2(321)x=13(322)x=2.1(323)x=1.5(324)x=11(325)x=0.9(326)x=3(327)x=38(328)x=9.9(329)x=2(330)x=0.6(331)x=16(332)x=8(333)x=7.4(334)x=0.2(335)x=7.9(336)x=59(337)x=2(338)x=98(339)x=3(340)x=9.9(341)x=10(342)x=6(343)x=89(344)x=15(345)x=2(346)x=3(347)x=6(348)x=6(349)x=5(350)x=11(351)x=9(352)x=0.6(353)x=17(354)x=4.9(355)x=20(356)x=8(357)x=11(358)x=7(359)x=46(360)x=6(361)x=0.8(362)x=6(363)x=2.8(364)x=27(365)x=11(366)x=15(367)x=64(368)x=4(369)x=47(370)x=15(371)x=49(372)x=2(373)x=16(374)x=7(375)x=3(376)x=16(377)x=13(378)x=2.2(379)x=1.6(380)x=4(381)x=2(382)x=4(383)x=4.1(384)x=4.6(385)x=10(386)x=7(387)x=14(388)x=33(389)x=34(390)x=10(391)x=16(392)x=51(393)x=16(394