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)28x÷98=2(2)12x+7x+1.7=70.1(3)(5.9x-8)÷2=37.3(4)x-21=78(5)5x-3x-29=31(6)8x+14×4=192(7)8x-5x+39=69(8)2x+9×1.4=13.8(9)12x-2x+7=37(10)92x-17x-3.2=56.8(11)x+6=9.6(12)1x-0.6×10=1(13)x-1.1=1.7(14)3.2x+3.8x+3.5=24.5(15)159-21x=54(16)5(9x-9)=90(17)29x-12x-1.4=13.9(18)27x+86x-4.2=97.5(19)19x+8x=135(20)x+29=38(21)x÷21=7(22)88÷x=8(23)7.8+x=16.9(24)3(x-28)=42(25)2x+3x+36=241(26)7.2x-3.8x-2.1=28.5(27)92-x=30(28)(3.8x+2.8)÷6=4.9(29)5.2x-3.3x+3.7=17(30)2(1.3x+9)=31(31)4(3x+2)=188(32)3x+9x=264(33)6x÷9=1.2(34)9x÷18=2(35)1.6+9.3x=20.2(36)4x-2×26=44(37)5x+2x=147(38)11.3-2.3x=6.7(39)15.6÷x=3.9(40)3.5+x=8.8(41)36x-5.6=12.4(42)7.6x+3.2x=108(43)165-34x=97(44)38x÷6=19(45)16-21x=11.8(46)(11x-49)÷2=58(47)8x+3x+43=109(48)(5.8x-1.8)÷2=39.7(49)10x÷12=15(50)14x+31=87(51)14x-9x-31=29(52)1.4+0.2x=18(53)2x+7x+39=138(54)40x+14×0.8=23.2(55)17x+9x-14=38(56)2x+1.7=3.9(57)11x+4.1=15.1(58)3.5x+6.3x+4.9=102.9(59)8.3x+4.5x+2.5=130.5(60)2x=104(61)5.9x+6.6x+1.4=126.4(62)0.9x=12.6(63)17x-4x-2=61.7(64)9.6x-2.6x-3.7=59.3(65)(x+4)÷3=2(66)(3.3x+5.9)÷28=0.8(67)9x-1.8=4.5(68)21x-3×0.7=6.3(69)7x-2x+33=128(70)3x+39=228(71)16x-6x+38=148(72)178-48x=34(73)6.1+0.2x=9.1(74)22x-10x-4.2=37.8(75)18x-32×0.5=3.8(76)2(0.5x+2.1)=43.2(77)13x-10x=12(78)84x-55x-0.2=23(79)11x+13x+1.1=152.3(80)3.2-3x=1.7(81)(1.2x+0.4)÷2=11.6(82)86+x=162(83)4x+3×12=124(84)3.8x-1.3x=62.5(85)20x-2x+3.6=91.8(86)22x+31x-2=24.5(87)9.3x+9.8x=133.7(88)11x+27x+3.9=72.3(89)0.9x-1×9=3.6(90)39+6x=171(91)15.4+0.2x=30.2(92)x-80=12(93)31x-3.7=5.6(94)(8x-2)÷19=10(95)x+1.5=3.2(96)x+9=47(97)17.4+7x=31.4(98)(3.5x+4.4)÷3=14.3(99)6.4x-1.3x=15.3(100)3(0.5x+3.2)=41.1(101)7x÷12=1.4(102)x÷13=10(103)10(4.4x-4.1)=47(104)9-x=8.7(105)6x+14×1=30.8(106)6.9-x=6.5(107)x÷8=1(108)0.2x-3.5=10.5(109)8.4x+3.3x-2.4=79.5(110)x-2.2=7.4(111)5(1.3x+0.9)=50(112)(9.5x+2.2)÷6=6.7(113)(17x+15)÷4=59(114)4x+94×2=288(115)7.3-4x=4.9(116)x+9=89(117)3(14x-35)=189(118)(x+4.6)÷2=10.8(119)5.1x-5.2=5(120)19.9-2.3x=13(121)19x-17x=18(122)11.4÷x=1.9(123)x+5.3=10.2(124)5.9-x=5.3(125)19.5-0.2x=6.7(126)4x+11x+23=293(127)3x+6x+6=78(128)6.9x÷46=0.3(129)x+86=161(130)51x-34x-2.5=28.1(131)8x÷2=16(132)5.1+12x=11.1(133)9x-6x+38=77(134)1.6x÷8=2.4(135)7x-4x-10=59(136)2x+2=12.6(137)8x+7x=360(138)11x+10×0.6=13.7(139)x+7.3=16(140)96x=19.2(141)19x-3×0.7=11.2(142)162+60x=282(143)11.6-0.3x=9.2(144)11x-8x-14=40(145)99x-55x+4.4=39.6(146)0.7x÷2=2.1(147)8x=112(148)1.5x=19.5(149)(15x-42)÷2=99(150)5x÷10=1.6(151)13x-2×18=94(152)x-50=36(153)6x+2×11=160(154)x÷14=1.1(155)3(x+19)=75(156)x÷32=4(157)138+40x=298(158)x÷52=0.3(159)29x-14x+0.4=24.4(160)(1.3x-3.4)÷4=3.7(161)2x-3×1.6=3.4(162)7x+4x+10=186(163)7(2x-26)=98(164)0.4x=8(165)(8x+24)÷4=34(166)5x-9×4=109(167)0.8x-0.6x=17.8(168)x-5.9=1.1(169)59-x=35(170)33x-5×0.6=3.6(171)0.3x+4.3=5.5(172)187÷x=17(173)5.4+0.6x=9.6(174)8.2x-0.5x+0.8=23.9(175)3x-12×3=144(176)4.8x+0.6x=21.6(177)2.9x+0.8×23=27.1(178)50+17x=101(179)22x-1.5=11.7(180)4.2+8x=13.8(181)0.7x+0.5×36=31.3(182)8(1.8x-3.6)=43.2(183)1.5x-0.5x+1.7=31.7(184)0.7x+5.2x=23.6(185)x÷26=4(186)6x-15×0.9=1.5(187)3x+4x=203(188)2x=18(189)43x+8x-1.1=85.6(190)4.6x-3.7=5.5(191)21x=6.3(192)8(x+14)=152(193)15(4.8x-6.3)=49.5(194)8(0.5x-9.4)=24.8(195)7.1x-6.7x+4.5=7.3(196)74x+47x-1.7=22.5(197)2x+4.9×3=30.7(198)7-x=4.5(199)3(2x+3)=141(200)1.8x+3.5=19.7(201)10x+44×3=262(202)165÷x=15(203)13x+33=150(204)x-16=76(205)3.3x-1.4x-3.1=12.1(206)6.7x+6.4x+2.1=120(207)8.3x-1.8x+4.3=17.3(208)4(1.5x-6)=30(209)(8.9x+0.9)÷7=10.3(210)96x-84x-0.5=5.5(211)5.5x+8.9x=57.6(212)0.5x+1.5=16(213)20x÷4=45(214)4(2x+1)=36(215)63x-45=144(216)1.6x-1.7=4.7(217)4.7+x=5.1(218)89x-14x+2.8=25.3(219)(6.6x+0.8)÷35=0.4(220)(9x-17)÷10=1(221)108÷x=2(222)20x÷40=0.5(223)2x÷24=0.6(224)14x+5x=171(225)15x+3.1=7.6(226)(5x+42)÷26=2(227)10(6x-44)=160(228)0.6x=3.6(229)12.6÷x=0.9(230)1.2x÷48=0.4(231)0.7x-3.9=1.7(232)189-18x=117(233)5x+4.4=10.9(234)(7.7x-9.2)÷13=6.4(235)0.5x+0.9x+1.3=62.9(236)x÷13=15(237)0.2x=14.4(238)5.7x-4.6x+4.4=8.8(239)7x-2x+37=52(240)15x+7x-31=57(241)15.4-0.3x=11.5(242)2x+40=110(243)17.9+6x=33.5(244)5x=7(245)x÷4=0.4(246)23x+11x+3.8=99(247)3.2-x=1.9(248)75x=150(249)5(0.7x-3.1)=44(250)2x+6×24=172(251)86x÷4=4.3(252)7(0.8x+1.6)=44.8(253)4.9x+4.1×3=27(254)5-x=2.1(255)147+6x=267(256)21+x=78(257)0.2x+1.3=20.1(258)71-x=10(259)3.6+29x=18.1(260)2.2x+0.4×16=13(261)0.9x+0.4×20=26(262)18x+24=114(263)(2.4x-4)÷16=0.8(264)7x-1.8=5.9(265)7x+13x-35=45(266)3x÷2=2.4(267)69-x=22(268)4(13x-9)=172(269)17x-9x=56(270)2x+3x-36=254(271)1.3x+1.7x+4.7=58.7(272)3.2x-0.3×9=6.9(273)2.8x-1.3x-2.6=15.4(274)0.3x+5.3=23.6(275)x+1.7=10.4(276)2(4.6x+7.9)=43.4(277)9.8x+7x-3.6=80.4(278)184-5x=79(279)0.7x-3.6×4=2.4(280)49-x=15(281)x÷54=0.2(282)6.8+x=7.8(283)x÷17=9(284)158+30x=218(285)(8x-48)÷8=12(286)4.2x-1.4x-4.6=54.2(287)5.9+x=12.1(288)0.2x+2.3×8=26.6(289)10.2÷x=1.7(290)52x-23=81(291)7.9x-3.9x=16(292)x÷4=11(293)29x=87(294)152-11x=64(295)144-16x=32(296)8.1x-5.9x+2.3=17.7(297)126÷x=9(298)1.7x-2.9×5=4.2(299)(16x-8)÷6=20(300)16.3-26x=8.5(301)(3.1x-0.7)÷29=1.9(302)x+2.1=6.1(303)45-x=25(304)x-75=22(305)6(x+9)=144(306)18x+59=167(307)x+68=97(308)71x-54x+2=19(309)22x=4.4(310)11x-46×3=49(311)8.4-3x=1.5(312)10.2+0.6x=23.4(313)20x+4×14=96(314)16x-2x=56(315)51x+57x-2.1=73.5(316)0.3x=7.5(317)2x+2.6x-0.3=133.1(318)13x+12x-4=271(319)29x-31=27(320)7x-5x+19=59(321)0.5x÷45=0.2(322)33x+94x+3.2=79.4(323)6.2x+8.3x-4=112(324)x+56=70(325)45x+55x+3.1=113.1(326)0.5x+5.9x-4.9=52.7(327)0.2x-0.4×17=1.4(328)1.5x-4.5=12(329)4x+4.2=23.4(330)43+x=108(331)0.2x+1.5=11.1(332)15x+52=157(333)3.2x-0.4x=25.2(334)5x+6x-3.6=139.4(335)14x+11x-45=180(336)19.8-5.5x=8.8(337)9x+58=166(338)3x+8.6x=116(339)4x÷12=0.5(340)31x-25x+1.2=9(341)13.7+3.5x=31.2(342)x+55=151(343)1.2+x=7.4(344)56+x=78(345)4x+10x-36=48(346)2x÷20=6(347)2x+51x+4.5=84(348)8.3x+1.1x-4.2=24(349)9.6-x=2(350)15x-18×8=21(351)2x=4(352)68-x=60(353)197+70x=337(354)6x+3×55=255(355)93x-41=145(356)(9x-12)÷4=15(357)8x-6×16=32(358)4(0.9x-9.4)=38(359)x-3.1=4.7(360)15x-5×24=60(361)165-2x=39(362)15x+18x-8=355(363)7.9x-6.1x-0.4=12.2(364)4x+2×4.5=25.8(365)5x=15(366)10(2x+6)=120(367)6.9x-5.6x+2.9=5.5(368)41x=123(369)2.5x÷5=1.5(370)5+x=8.5(371)x-0.8=2.5(372)4.9x-0.7×26=1.4(373)3.3x÷11=1.8(374)23x+4×2.2=13.4(375)1.2x+0.2×12=21.6(376)x+17=91(377)8x-44×0.2=8.8(378)138÷x=46(379)(14x-18)÷44=5(380)(14x+10)÷11=6(381)11÷x=1(382)x÷5=1.7(383)6.2x-3x=25.6(384)20x+44x-2.2=138.6(385)76-x=24(386)32+x=87(387)3.7x+5.2x=142.4(388)10x+7x=68(389)0.6x÷24=0.3(390)0.8x-2.6×3=11.4(391)x+9.1=10.9(392)37x+17x+4=90.4(393)x+2.6=9.9(394)27+24x=219(395)64x-48x+1.9=17.9(396)3(12x+13)=147(397)19x-6x=26(398)8.3-5x=1.8(399)(4.3x-8.5)÷9=6.7(400)57÷x=3(401)18x+4.8=8.4(402)x+9.5=14.4(403)42x÷18=7(404)2x=56(405)2.4+x=4.1(406)x-28=46(407)9x-5x=16(408)0.7x+1.1x=5.4(409)2(5.9x-2.5)=42.2(410)(3.8x-8)÷12=4.4(411)(9x+27)÷9=24(412)18x-56=52(413)x-4.9=2.8(414)16(x-34)=176(415)3x+5x=216(416)64+x=78(417)6.3x-2.3x-2.2=57.8(418)95x-55x+4.9=44.9(419)(5x-31)÷9=6(420)3(5x+34)=162(421)21x-3×3.3=6.9(422)x÷4=3.1(423)3.5÷x=0.5(424)2.1+2x=9.9(425)6.4x-1.5x=68.6(426)0.3x=17.4(427)4(1.8x+4.7)=47.6(428)6.1+3x=21.1(429)12x+42x-2.6=40.6(430)12x+14x-41=193(431)82x-39x-3.9=47.7(432)28x-5.3=8.7(433)(9.3x-2.7)÷15=5.4(434)0.5x+0.8x-3=29.5(435)18-2x=11(436)4.3-x=3.7(437)9x-3.4=8.3(438)3x-3×1.4=5.4(439)113+23x=205(440)5.7x+3.2=20.3(441)17x+5x=154(442)3x+8×6=72(443)3x+18x+33=264(444)(6.3x+4.1)÷5=17.2(445)10.4-2x=8.8(446)x-11=27(447)95x-72x-1.2=8(448)36÷x=2(449)16.6+1.8x=27.4(450)2x-25=93(451)0.2x+5=22.6(452)5.1x+6.5x+4=62(453)x-40=17(454)3x+13=37(455)19.6+52x=30(456)11(2x+5)=187(457)x-11=50(458)4.7x-2.2x+4.9=44.9(459)33x-37=161(460)15x+2x+31=82(461)0.7x-3.8=5.3(462)13.8÷x=0.6(463)7x=12.6(464)95x-5.7=13.3(465)12x-9x-3=27(466)144÷x=4(467)11.9-0.4x=3.5(468)4.6x+0.4×44=26.8(469)11x-4x+35=98(470)17÷x=1.7(471)0.5x-3.1=14.4(472)(4x+6)÷2=47(473)1.6x+0.3x-2.1=60.6(474)(11x+4)÷37=1(475)6x=114(476)87x-1.1=16.3(477)6.1-x=5.1(478)7.6x-3.1x-3.2=19.3(479)21x-28×2=133(480)x-2.6=6.2(481)1.2x-2.5=16.7(482)x÷8=0.6(483)8.5x+6.1x=160.6(484)44+x=86(485)12x-3x=99(486)7.4+28x=21.4(487)(13x+26)÷39=4(488)16x=32(489)2(16x-43)=106(490)9x-28=161(491)x÷10=9(492)88-x=49(493)12x+14×0.3=12.6(494)27x÷54=3(495)2(0.3x+8.9)=46.6(496)2.7+x=11.1(497)x+69=106(498)8.6x-2x=26.4(499)14x-12x=14(500)0.4x÷10=1.4(501)2(1.2x-4.8)=7.2(502)1.8x+0.2x+2.5=44.5(503)x÷3=15(504)x÷7=2.2(505)66+x=163(506)10x-2x-23=41(507)x-2.7=6.7(508)14x-3x=121(509)10x-7x+42=96(510)2.8x=11.2(511)0.9x-0.2×19=10.6(512)69x÷46=0.3(513)7x+11x+45=225(514)14.3-6x=4.7(515)x-1.3=3.5(516)73x+49x-1.4=35.2(517)12x-2x-13=27(518)10x+31x-3.4=54(519)4.5x-3.7x=3.2(520)4x=12.4(521)16x+2.8=15.6(522)21+x=83(523)39x+38×0.3=23.1(524)5.6x-3.9x-4.3=16.1(525)133-2x=33(526)4x-2x-27=55(527)8x+1.2=8.4(528)15.8+2x=23(529)13x+25x+0.7=42.5(530)16.1-0.2x=3.1(531)6x=162(532)0.8÷x=0.2(533)5x+14×0.8=29.7(534)1.5x+1.4=7.4(535)18.7-1.5x=8.2(536)26x=10.4(537)13x-20=110(538)16x-11x-24=21(539)95x-33x+2=20.6(540)3(17x-26)=126參考答案(1)x=7(2)x=3.6(3)x=14(4)x=99(5)x=30(6)x=17(7)x=10(8)x=0.6(9)x=3(10)x=0.8(11)x=3.6(12)x=7(13)x=2.8(14)x=3(15)x=5(16)x=3(17)x=0.9(18)x=0.9(19)x=5(20)x=9(21)x=147(22)x=11(23)x=9.1(24)x=42(25)x=41(26)x=9(27)x=62(28)x=7(29)x=7(30)x=5(31)x=15(32)x=22(33)x=1.8(34)x=4(35)x=2(36)x=24(37)x=21(38)x=2(39)x=4(40)x=5.3(41)x=0.5(42)x=10(43)x=2(44)x=3(45)x=0.2(46)x=15(47)x=6(48)x=14(49)x=18(50)x=4(51)x=12(52)x=83(53)x=11(54)x=0.3(55)x=2(56)x=1.1(57)x=1(58)x=10(59)x=10(60)x=52(61)x=10(62)x=14(63)x=4.9(64)x=9(65)x=2(66)x=5(67)x=0.7(68)x=0.4(69)x=19(70)x=63(71)x=11(72)x=3(73)x=15(74)x=3.5(75)x=1.1(76)x=39(77)x=4(78)x=0.8(79)x=6.3(80)x=0.5(81)x=19(82)x=76(83)x=22(84)x=25(85)x=4.9(86)x=0.5(87)x=7(88)x=1.8(89)x=14(90)x=22(91)x=74(92)x=92(93)x=0.3(94)x=24(95)x=1.7(96)x=38(97)x=2(98)x=11(99)x=3(100)x=21(101)x=2.4(102)x=130(103)x=2(104)x=0.3(105)x=2.8(106)x=0.4(107)x=8(108)x=70(109)x=7(110)x=9.6(111)x=7(112)x=4(113)x=13(114)x=25(115)x=0.6(116)x=80(117)x=7(118)x=17(119)x=2(120)x=3(121)x=9(122)x=6(123)x=4.9(124)x=0.6(125)x=64(126)x=18(127)x=8(128)x=2(129)x=75(130)x=1.8(131)x=4(132)x=0.5(133)x=13(134)x=12(135)x=23(136)x=5.3(137)x=24(138)x=0.7(139)x=8.7(140)x=0.2(141)x=0.7(142)x=2(143)x=8(144)x=18(145)x=0.8(146)x=6(147)x=14(148)x=13(149)x=16(150)x=3.2(151)x=10(152)x=86(153)x=23(154)x=15.4(155)x=6(156)x=128(157)x=4(158)x=15.6(159)x=1.6(160)x=14(161)x=4.1(162)x=16(163)x=20(164)x=20(165)x=14(166)x=29(167)x=89(168)x=7(169)x=24(170)x=0.2(171)x=4(172)x=11(173)x=7(174)x=3(175)x=60(176)x=4(177)x=3(178)x=3(179)x=0.6(180)x=1.2(181)x=19(182)x=5(183)x=30(184)x=4(185)x=104(186)x=2.5(187)x=29(188)x=9(189)x=1.7(190)x=2(191)x=0.3(192)x=5(193)x=2(194)x=25(195)x=7(196)x=0.2(197)x=8(198)x=2.5(199)x=22(200)x=9(201)x=13(202)x=11(203)x=9(204)x=92(205)x=8(206)x=9(207)x=2(208)x=9(209)x=8(210)x=0.5(211)x=4(212)x=29(213)x=9(214)x=4(215)x=3(216)x=4(217)x=0.4(218)x=0.3(219)x=2(220)x=3(221)x=54(222)x=1(223)x=7.2(224)x=9(225)x=0.3(226)x=2(227)x=10(228)x=6(229)x=14(230)x=16(231)x=8(232)x=4(233)x=1.3(234)x=12(235)x=44(236)x=195(237)x=72(238)x=4(239)x=3(240)x=4(241)x=13(242)x=35(243)x=2.6(244)x=1.4(245)x=1.6(246)x=2.8(247)x=1.3(248)x=2(249)x=17(250)x=14(251)x=0.2(252)x=6(253)x=3(254)x=2.9(255)x=20(256)x=57(257)x=94(258)x=61(259)x=0.5(260)x=3(261)x=20(262)x=5(263)x=7(264)x=1.1(265)x=4(266)x=1.6(267)x=47(268)x=4(269)x=7(270)x=58(271)x=18(272)x=3(273)x=12(274)x=61(275)x=8.7(276)x=3(277)x=5(278)x=21(279)x=24(280)x=34(281)x=10.8(282)x=1(283)x=153(284)x=2(285)x=18(286)x=21(287)x=6.2(288)x=41(289)x=6(290)x=2(291)x=4(292)x=44(293)x=3(294)x=8(295)x=7(296)x=7(297)x=14(298)x=11(299)x=8(300)x=0.3(301)x=18(302)x=4(303)x=20(304)x=97(305)x=15(306)x=6(307)x=29(308)x=1(309)x=0.2(310)x=17(311)x=2.3(312)x=22(313)x=2(314)x=4(315)x=0.7(316)x=25(317)x=29(318)x=11(319)x=2(320)x=20(321)x=18(322)x=0.6(323)x=8(324)x=14(325)x=1.1(326)x=9(327)x=41(328)x=11(329)x=4.8(330)x=65(331)x=48(332)x=7(333)x=9(334)x=13(335)x=9(336)x=2(337)x=12(338)x=10(339)x=1.5(340)x=1.3(341)x=5(342)x=96(343)x=6.2(344)x=22(345)x=6(346)x=60(347)x=1.5(348)x=3(349)x=7.6(350)x=11(351)x=2(352)x=8(353)x=2(354)x=15(355)x=2(356)x=8(357)x=16(358)x=21(359)x=7.8(360)x=12(361)x=63(362)x=11(363)x=7(364)x=4.2(365)x=3(366)x=3(367)x=2(368)x=3(369)x=3(370)x=3.5(371)x=3.3(372)x=4(373)x=6(374)x=0.2(375)x=16(376)x=74(377)x=2.2(378)x=3(379)x=17(380)x=4(381)x=11(382)x=8.5(383)x=8(384)x=2.2(385)x=52(386)x=55(387)x=16(388)x=4(389)x=12(390)x=24(391)x=1.8(392)x=1.6(393)x=7.3(394)x=8(