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)0.6+x=10.3(2)17.9-0.5x=15.9(3)5.7x+2.8x+3.6=80.1(4)20x÷60=2(5)0.4x-3.3×2=11.4(6)3+16x=20.6(7)2(1.4x+3.5)=49(8)8x+2.8=16.4(9)93-x=31(10)6x-4.1x-3.5=13.6(11)x-0.4=5.1(12)52x-40x-1.3=19.1(13)158+23x=250(14)2(3.3x+1.1)=35.2(15)0.5x+2.8x=6.6(16)16x+4x+30=190(17)36x-3.8=10.6(18)0.3x÷42=0.2(19)3.9x+8.1x-0.2=23.8(20)1.6x÷8=0.4(21)10x-2×9=152(22)54x-19x+4.6=60.6(23)3(3x+3)=99(24)73x-37x-3.1=4.1(25)8.2-x=2.1(26)(3x-10)÷8=4(27)5x+15x=220(28)2x-18×7=24(29)2(2x+37)=118(30)40x÷30=0.4(31)(12x+42)÷2=39(32)18x-11x=70(33)0.6x+0.4×32=15.2(34)(17x+35)÷11=14(35)29x+20x-2.8=129.5(36)x+82=144(37)10x-3x-12=37(38)13x-4x+40=85(39)x-54=36(40)6(1.8x-6.8)=34.8(41)x÷2=36(42)2.4÷x=0.8(43)11.1+1.7x=19.6(44)x+44=119(45)97+x=135(46)14x-11x=21(47)4.2x-3.5x+2.2=9.9(48)(4x+2)÷2=59(49)(19x+10)÷25=8(50)0.8x+0.6×24=28.8(51)76x-12x+2.9=34.9(52)12.3+14x=17.9(53)1.4x-0.5x+4.1=23.9(54)4x+2×4.1=20.2(55)14.2-2x=8(56)3x+17=59(57)78x+37x+2.8=83.3(58)82-x=50(59)7x+7×1.8=25.9(60)6x-4x-49=15(61)(8.3x+2.9)÷3=6.5(62)66-x=11(63)130+63x=319(64)4x-1.2=8.8(65)x+0.7=4.3(66)(4.8x-3.6)÷22=1.8(67)x÷11=7(68)x÷6=2.5(69)1.6+0.3x=4.9(70)49x÷7=2.8(71)12x-15×1.1=1.5(72)11.5+2x=26.5(73)x+4.3=5.4(74)4x+14=70(75)34+x=46(76)6.2x+1.9x=81(77)6.4+x=8(78)5x-2.2x-3.2=30.4(79)3x+2x+45=200(80)93-4x=65(81)6.6x-2.8x=15.2(82)2x+3x-39=176(83)195-2x=77(84)138-35x=68(85)3.6-x=2.4(86)3.2-x=1.1(87)6x+11×3=213(88)4x-21×0.5=6.7(89)81+x=138(90)3+x=11.6(91)14x-9x+49=59(92)10x+6x=80(93)(8.6x-6.9)÷3=23.5(94)64x÷96=2(95)4.8x+7.1x=71.4(96)15.7-4.8x=1.3(97)(4x-8.1)÷3=1.3(98)9x-4x=105(99)7(0.3x+0.2)=7.7(100)9.4+0.5x=19.9(101)26x-2x+3.8=51.8(102)(9.4x+9.5)÷3=15.7(103)3.9x-0.8x+0.3=65.4(104)59x-22x+1.6=16.4(105)7.6x-5.2x+0.4=10(106)x+2.4=11.4(107)3(6x+16)=192(108)16.5÷x=1.1(109)2.2x+1.7x-3=55.5(110)45x-4.4=9.1(111)x÷4=0.7(112)5.5x=11(113)1.5x-4.9=13.1(114)12x-1=18.2(115)20x+22x-1.8=23.4(116)x-26=41(117)6x+5.9=24.5(118)0.9x+1x+3.2=33.6(119)90-x=15(120)133÷x=7(121)x÷55=3(122)3(0.2x+6.1)=26.7(123)7x-4x=57(124)0.8x+0.2×5=19.4(125)8.3x-1.7x-0.3=32.7(126)14.3+1.4x=19.9(127)2.5x-1.9×4=12.4(128)(18x-30)÷3=62(129)(7.4x+4.2)÷12=2.2(130)x-8=62(131)9x+65×2=292(132)28x+38x+4.1=76.7(133)58x+3.5=20.9(134)7.2+0.9x=24.3(135)5x-3×12=154(136)11+61x=194(137)18x-7×0.4=13.4(138)2x+32=76(139)16x-19=45(140)22x=198(141)3x÷75=0.2(142)99x+59x+0.4=47.8(143)10x-6x=28(144)0.5x+5.7x-4.1=39.3(145)20x+7x+2.8=24.4(146)3(0.3x+5.4)=28.8(147)13x÷26=6(148)x÷15=3(149)17x-11x-28=20(150)126÷x=7(151)18+17x=36.7(152)2x-2.5=12.9(153)(12x-30)÷33=2(154)30x+50=110(155)4.1x-4.8=7.5(156)(1.4x+9.8)÷4=5.6(157)10x=12(158)x-2.7=5.4(159)x÷15=0.8(160)38x-27x+0.4=8.1(161)3.8x=11.4(162)3(24x-35)=111(163)59x+49x-2.8=94.4(164)6x+16x-32=56(165)5(11x-37)=145(166)0.6x+4.1=23.3(167)159+7x=278(168)134-6x=50(169)(12x+40)÷14=14(170)78+22x=144(171)12x÷39=0.4(172)53x-49x-2.1=4.3(173)4x+20×0.7=19.6(174)(2x-16)÷14=2(175)46-x=16(176)8x-5.6=8(177)11x+33×4=165(178)0.2x+1.8=6.4(179)16x-4.2=15(180)7(1.3x-2.2)=39.2(181)149+12x=341(182)5.6÷x=1.4(183)x÷5=1.9(184)12x÷27=0.4(185)19x+59x-4.1=73.9(186)10x-6x+5=41(187)4x+1.7=14.5(188)4x÷9=0.8(189)4.2x÷6=2.8(190)5.8x+2.4x-1.8=63.8(191)4x+3×0.9=21.5(192)28x+3.3=22.9(193)2x=98(194)1.2x-0.3×9=9.3(195)91x-36x-4=51(196)(7.3x+8.5)÷14=5.3(197)0.2x+0.9×14=17.6(198)14x+6x-4=136(199)16.3-4x=12.3(200)3.5x-2.1x+3=22.6(201)1.4x-0.4x+2.3=14.3(202)(11x-37)÷9=13(203)2(2x-15)=34(204)8x+3x-41=14(205)8x÷4=4(206)18x-2×0.4=17.2(207)2x÷15=1(208)x÷60=0.3(209)1.8-x=1(210)8.1x-7.3x=4(211)x÷23=0.5(212)6x+8x-24=186(213)0.3x=7.2(214)2.5+x=7(215)6.1x-3.9x-4.1=11.3(216)3.1x+0.4×48=31.6(217)19x-15x=28(218)2x+25×0.2=7.2(219)10x+14x+4=268(220)3(0.4x+3.1)=18.9(221)13x=39(222)19.8÷x=0.3(223)4(29x-45)=52(224)5(4x+9)=85(225)x-2.5=5.3(226)5(5x-26)=120(227)0.2x÷11=1.4(228)1.5x+0.5×21=27(229)1.8x-1.8×3=12.6(230)2x-2×77=34(231)7x-2×1.4=7(232)2(8x-20)=120(233)x+56=76(234)2x-22×3=28(235)10x-4x+37=121(236)x÷2=1.6(237)10x+43=63(238)98÷x=2(239)13.4÷x=0.2(240)16.1-3x=3.2(241)2x=17.2(242)(1.1x+5.4)÷17=0.9(243)0.7x-5.7=8.3(244)(9x+36)÷27=7(245)(4.9x-8.1)÷30=1.2(246)51x+15=168(247)69-x=33(248)14x=140(249)2.1+x=11.1(250)(1.9x-4.2)÷2=5.5(251)(19x+10)÷5=21(252)1.7x-0.5×14=4.9(253)78x+81x+3.2=50.9(254)14x+16x=90(255)4.9x=9.8(256)1.2x+1.9=18.7(257)15.3-3x=5.4(258)5x+13x+15=51(259)184÷x=23(260)11.1-0.2x=9.1(261)17.8-3x=10(262)1.9x+9.6x=115(263)5x-4×19=24(264)x+18=66(265)31x-14=141(266)5x+3x=48(267)48+x=132(268)6.1x-5x-0.9=5.7(269)x+54=75(270)6.1x+0.9x+3.2=52.2(271)28(0.6x-2.6)=44.8(272)12x-9x+26=47(273)4.8x÷16=1.2(274)16.4-2x=13.2(275)16.7-0.2x=3.3(276)x-20=78(277)(8.4x+4.2)÷7=11.4(278)4x+4×4.4=32(279)x+3.3=8.4(280)x÷26=2(281)7.4+x=11.4(282)8.8x=17.6(283)58+x=154(284)11.3-0.9x=7.7(285)1x+1.5=8.5(286)4(x+10)=124(287)11x÷22=3(288)2.8x+4.8x=106.4(289)4.5x+0.7x+2.9=18.5(290)10x-22=168(291)x+45=69(292)5(4x+15)=155(293)195÷x=39(294)4.9x+3.2x=40.5(295)4(14x-32)=96(296)23x+9x+4.7=30.3(297)x÷5=38(298)13x+1.3=11.7(299)x+5.6=7(300)56-x=31(301)5x+6x=165(302)15.1-0.3x=7.9(303)21x+8×14=301(304)8.4x+5.9x+4.7=90.5(305)x-0.6=1.2(306)6x+54=72(307)3.1x-1.6x-2=43(308)4(0.9x-9.5)=19.6(309)7x+18x-2=48(310)0.4x+0.2×25=13(311)x+2.6=5(312)0.2x+3.7=18.7(313)111+9x=246(314)6.3x-0.2x=61(315)x÷2=43(316)0.4x=4.8(317)9x-24=174(318)13x+19x-24=232(319)1.1x=5.5(320)7x-4x=24(321)2(3x+25)=152(322)1.3x-1x-0.8=5.2(323)28x+74x+4.6=55.6(324)69x-23x-1.5=53.7(325)x-2.1=1.4(326)x-0.3=4.9(327)7.9+x=10.1(328)13.3-2x=3.5(329)63x+36x-3=66.3(330)7.7x-3x=37.6(331)119÷x=7(332)7x=98(333)81+x=120(334)9.3-x=5.2(335)4x-3×18=114(336)2x+7x+18=243(337)3(0.2x+7.2)=40.8(338)18x-9x-29=43(339)(18x-18)÷45=4(340)0.4x÷46=0.2(341)0.2x+2.7=4.7(342)5x+88×2=296(343)8.9x+6.7x=31.2(344)83x-81x+0.6=2.8(345)58x-34x+3.3=36.9(346)18x-2x-13=67(347)7.2÷x=3.6(348)52x÷12=13(349)180÷x=3(350)12x-22=98(351)60÷x=10(352)3x+2×3.8=9.7(353)0.7x-3.2=7.3(354)0.3x+5.6=22.1(355)10x-7x+48=60(356)5.7+3x=24.9(357)x÷90=0.2(358)1.9x+2.4=21.4(359)0.4x=10(360)17.2-0.2x=11(361)6.5x-2.4x+0.2=41.2(362)7.2÷x=0.4(363)5x+4×22=243(364)2x-2×3.2=1.6(365)3(3x-10)=150(366)38x=190(367)19x-55=59(368)13x-11x-1.8=12(369)x-51=47(370)7x+15x+47=135(371)1.4x-1.1×2=6.2(372)2x-2×2.9=2.6(373)69-2x=65(374)27x=162(375)7.9x+3.5x+4.2=106.8(376)7x=9.1(377)2.5÷x=0.5(378)11x-4x=84(379)x+97=127(380)2x+2×59=166(381)3x-1.9=6.2(382)5x+94×2=338(383)(5.3x-4.5)÷2=16.3(384)1.7x+2.8x+1.4=59.9(385)86+x=135(386)x-29=40(387)16x+4x=60(388)3.5x+2.3x-1.8=143.2(389)7.5-x=2.2(390)7÷x=1(391)171÷x=19(392)x-8.2=1.6(393)6x+3x=144(394)2(8x+37)=106(395)3.3x+3.6x=110.4(396)6x÷9=0.2(397)65x÷26=5(398)4x-2.8x+1.4=3.8(399)(8x+6.4)÷2=15.2(400)19x-7×2.4=2.2(401)2x=12.8(402)14+x=73(403)36x-33x+0.5=7.1(404)4x=8.8(405)142-15x=67(406)0.9x-2.5=5.6(407)2x=8.6(408)6x÷45=0.4(409)10x+3.2=13.2(410)0.9x-0.2x=7(411)19.6+4x=22(412)18.6-0.8x=3.4(413)9.9x-7.5x=9.6(414)18x+87x-2.7=81.3(415)5(0.7x-2.5)=29.5(416)0.2x-2.4=12.2(417)0.5x-0.6×10=8(418)34x-5.9=7.7(419)2x+1.5=18.7(420)10(4x+5)=130(421)4x=84(422)(12x-12)÷14=12(423)5x+10x=60(424)(4x+2)÷23=2(425)13.4-0.3x=2.3(426)87-x=29(427)17+17x=102(428)81x÷9=18(429)1.9x-2.6=5(430)17+0.2x=28.4(431)13x-7x-7=11(432)1.3x+7.2x-4.2=63.8(433)1x-4.3×3=4.1(434)67x-37x-1=11(435)5x-4.7x+1.7=6.8(436)4x=7.2(437)4x-18=62(438)9x-31=68(439)8.5x+7.5x+1.1=81.1(440)6x+5x-22=341(441)(0.6x-3.6)÷3=2.4(442)2.2x÷77=0.2(443)132-2x=34(444)182-16x=150(445)14x+16x-8=82(446)3.2x+5.6x=114.4(447)18.6+4x=30.2(448)8.3+3.9x=20(449)3(0.8x+2.5)=36.3(450)24(0.4x-8.9)=36(451)x+97=177(452)5.9+x=7.4(453)x÷2=46(454)17x-13x+15=51(455)17x+55=140(456)0.7x+1.5=6.4(457)x+31=72(458)7.1+5x=10.6(459)80x-46x-4.5=29.5(460)39x+2=17.6(461)7.2x+4.8x-1.8=58.2(462)9.4+x=14.6(463)15x-9x-9=69(464)9x+7x+13=317(465)4.8x-3.2=16(466)17x-7x-21=89(467)(7x-7)÷25=7(468)4x-2×20=52(469)13(0.4x-3.3)=45.5(470)7.3-x=2.3(471)2.2x-0.5x=5.1(472)6.3x-1.4x=53.9(473)(7.1x-6)÷6=13.2(474)6x-3x+24=93(475)30x÷45=0.4(476)9.9+25x=19.9(477)4x+7.3x+4.8=151.7(478)5(3x-33)=180(479)x÷27=5(480)54x-18x+0.6=36.6(481)14x+5×2.4=16.2(482)6.8-8x=2(483)19x+3x+25=135(484)3.7x+5.8x-0.5=56.5(485)90-x=42(486)9.1x-3.8x-0.5=52.5(487)99x-87x-3.7=2.3(488)22x÷88=2(489)x-12=67(490)6.4x+1.4x-0.2=70(491)3x-2×1.7=9.2(492)x-6.4=3.2(493)7x-5x=52(494)11x÷44=0.4(495)9.4x-8.1x=11.7(496)(16x+40)÷12=6(497)5x+19=144(498)8.9-x=6.5(499)14x+18x=224(500)56x+22x-3.3=20.1(501)5x+54×2=298(502)6x-3x+16=106(503)40x+57x-3.3=54.9(504)9.2-x=8.9(505)198-3x=138(506)4x-5×3=157(507)3.8x+0.8×5=15.4(508)12(4.3x-9.5)=40.8(509)(5.6x-2.5)÷13=1.1(510)(5x+5.2)÷4=23.8(511)92+4x=188(512)4.9x-2.9x-3=33(513)x+4.9=6.1(514)(8x-24)÷24=4(515)x+3.9=11.6(516)0.5x-1.9×2=2.2(517)x-0.5=8.2(518)1.8x=12.6(519)51+x=80(520)x-23=22(521)4x+2×4.3=22.2(522)1+2x=15(523)0.4x+4.3×2=18.6(524)28x+5x+0.3=53.1(525)55x+10x-2.7=101.3(526)10x-27=143(527)15x+11x+41=197(528)1.1x-2.4=2(529)13x=2.6(530)17x-6x-9=90(531)x÷3=0.5(532)42x+16x+4.9=57.1(533)7.9-2x=2.1(534)3(0.8x+4.7)=28.5(535)x+7.4=13.8(536)4.1+1.1x=12.9(537)x-8=65(538)51x=15.3(539)4x=72(540)11(0.4x-6.3)=14.3參考答案(1)x=9.7(2)x=4(3)x=9(4)x=6(5)x=45(6)x=1.1(7)x=15(8)x=1.7(9)x=62(10)x=9(11)x=5.5(12)x=1.7(13)x=4(14)x=5(15)x=2(16)x=8(17)x=0.4(18)x=28(19)x=2(20)x=2(21)x=17(22)x=1.6(23)x=10(24)x=0.2(25)x=6.1(26)x=14(27)x=11(28)x=75(29)x=11(30)x=0.3(31)x=3(32)x=10(33)x=4(34)x=7(35)x=2.7(36)x=62(37)x=7(38)x=5(39)x=90(40)x=7(41)x=72(42)x=3(43)x=5(44)x=75(45)x=38(46)x=7(47)x=11(48)x=29(49)x=10(50)x=18(51)x=0.5(52)x=0.4(53)x=22(54)x=3(55)x=3.1(56)x=14(57)x=0.7(58)x=32(59)x=1.9(60)x=32(61)x=2(62)x=55(63)x=3(64)x=2.5(65)x=3.6(66)x=9(67)x=77(68)x=15(69)x=11(70)x=0.4(71)x=1.5(72)x=7.5(73)x=1.1(74)x=14(75)x=12(76)x=10(77)x=1.6(78)x=12(79)x=31(80)x=7(81)x=4(82)x=43(83)x=59(84)x=2(85)x=1.2(86)x=2.1(87)x=30(88)x=4.3(89)x=57(90)x=8.6(91)x=2(92)x=5(93)x=9(94)x=3(95)x=6(96)x=3(97)x=3(98)x=21(99)x=3(100)x=21(101)x=2(102)x=4(103)x=21(104)x=0.4(105)x=4(106)x=9(107)x=8(108)x=15(109)x=15(110)x=0.3(111)x=2.8(112)x=2(113)x=12(114)x=1.6(115)x=0.6(116)x=67(117)x=3.1(118)x=16(119)x=75(120)x=19(121)x=165(122)x=14(123)x=19(124)x=23(125)x=5(126)x=4(127)x=8(128)x=12(129)x=3(130)x=70(131)x=18(132)x=1.1(133)x=0.3(134)x=19(135)x=38(136)x=3(137)x=0.9(138)x=22(139)x=4(140)x=9(141)x=5(142)x=0.3(143)x=7(144)x=7(145)x=0.8(146)x=14(147)x=12(148)x=45(149)x=8(150)x=18(151)x=1.1(152)x=7.7(153)x=8(154)x=2(155)x=3(156)x=9(157)x=1.2(158)x=8.1(159)x=12(160)x=0.7(161)x=3(162)x=3(163)x=0.9(164)x=4(165)x=6(166)x=32(167)x=17(168)x=14(169)x=13(170)x=3(171)x=1.3(172)x=1.6(173)x=1.4(174)x=22(175)x=30(176)x=1.7(177)x=3(178)x=23(179)x=1.2(180)x=6(181)x=16(182)x=4(183)x=9.5(184)x=0.9(185)x=1(186)x=9(187)x=3.2(188)x=1.8(189)x=4(190)x=8(191)x=4.7(192)x=0.7(193)x=49(194)x=10(195)x=1(196)x=9(197)x=25(198)x=7(199)x=1(200)x=14(201)x=12(202)x=14(203)x=16(204)x=5(205)x=2(206)x=1(207)x=7.5(208)x=18(209)x=0.8(210)x=5(211)x=11.5(212)x=15(213)x=24(214)x=4.5(215)x=7(216)x=4(217)x=7(218)x=1.1(219)x=11(220)x=8(221)x=3(222)x=66(223)x=2(224)x=2(225)x=7.8(226)x=10(227)x=77(228)x=11(229)x=10(230)x=94(231)x=1.4(232)x=10(233)x=20(234)x=47(235)x=14(236)x=3.2(237)x=2(238)x=49(239)x=67(240)x=4.3(241)x=8.6(242)x=9(243)x=20(244)x=17(245)x=9(246)x=3(247)x=36(248)x=10(249)x=9(250)x=8(251)x=5(252)x=7(253)x=0.3(254)x=3(255)x=2(256)x=14(257)x=3.3(258)x=2(259)x=8(260)x=10(261)x=2.6(262)x=10(263)x=20(264)x=48(265)x=5(266)x=6(267)x=84(268)x=6(269)x=21(270)x=7(271)x=7(272)x=7(273)x=4(274)x=1.6(275)x=67(276)x=98(277)x=9(278)x=3.6(279)x=5.1(280)x=52(281)x=4(282)x=2(283)x=96(284)x=4(285)x=7(286)x=21(287)x=6(288)x=14(289)x=3(290)x=19(291)x=24(292)x=4(293)x=5(294)x=5(295)x=4(296)x=0.8(297)x=190(298)x=0.8(299)x=1.4(300)x=25(301)x=15(302)x=24(303)x=9(304)x=6(305)x=1.8(306)x=3(307)x=30(308)x=16(309)x=2(310)x=20(311)x=2.4(312)x=75(313)x=15(314)x=10(315)x=86(316)x=12(317)x=22(318)x=8(319)x=5(320)x=8(321)x=17(322)x=20(323)x=0.5(324)x=1.2(325)x=3.5(326)x=5.2(327)x=2.2(328)x=4.9(329)x=0.7(330)x=8(331)x=17(332)x=14(333)x=39(334)x=4.1(335)x=42(336)x=25(337)x=32(338)x=8(339)x=11(340)x=23(341)x=10(342)x=24(343)x=2(344)x=1.1(345)x=1.4(346)x=5(347)x=2(348)x=3(349)x=60(350)x=10(351)x=6(352)x=0.7(353)x=15(354)x=55(355)x=4(356)x=6.4(357)x=18(358)x=10(359)x=25(360)x=31(361)x=10(362)x=18(363)x=31(364)x=4(365)x=20(366)x=5(367)x=6(368)x=6.9(369)x=98(370)x=4(371)x=6(372)x=4.2(373)x=2(374)x=6(375)x=9(376)x=1.3(377)x=5(378)x=12(379)x=30(380)x=24(381)x=2.7(382)x=30(383)x=7(384)x=13(385)x=49(386)x=69(387)x=3(388)x=25(389)x=5.3(390)x=7(391)x=9(392)x=9.8(393)x=16(394)x