五年級(jí)數(shù)學(xué)(方程)專項(xiàng)練習(xí)題及答案匯編(1)2(21x+2)=130(2)15.8÷x=0.2(3)(3.9x+3)÷2=17.1(4)9.1x+8.6x=123.9(5)x+75=99(6)86x+27x-4.3=86.1(7)80÷x=5(8)x-0.7=9(9)x-3.9=5.6(10)x÷12=0.3(11)0.2x+0.7x=60.3(12)2x+3×30=202(13)31x-14x+4.7=50.6(14)58-x=47(15)16x-14x=16(16)144÷x=2(17)4(x+7)=132(18)17x+10x=54(19)9+x=13.2(20)5.7x-3.8x=7.6(21)0.2x+0.5×4=7.8(22)14x-5x-17=64(23)x÷99=2(24)10x÷35=4(25)3(1.4x+3.8)=24(26)12x÷6=0.6(27)3x+5.7=15(28)0.7x-0.5×2=8.1(29)18x=36(30)14.8+4.1x=23(31)14x+16x=150(32)1.5÷x=0.5(33)56x-31x-3.3=11.7(34)x-1.8=8(35)17.3-0.9x=12.8(36)143+28x=255(37)10x-5×4=10(38)0.2x=13.6(39)18x-3x-14=91(40)1.9x-0.5x-0.6=58.2(41)x-6=1.9(42)2(2.5x+4.2)=38.4(43)84x+97x-3.5=68.9(44)x-5.8=1.4(45)8x=152(46)4x÷10=0.2(47)3x+1.1x-3.1=103.5(48)10(2x+5)=190(49)13x+8x-30=117(50)15x+14x=203(51)5.1x-4.3x=8(52)2(0.8x+0.6)=18.8(53)13-2.9x=1.4(54)14(0.4x-5.9)=23.8(55)19x-5x=42(56)6x+7x=156(57)(2.6x+5)÷29=0.8(58)189-7x=168(59)49+x=64(60)(17x-26)÷25=1(61)x÷5=3.9(62)4.8x+6.2x+4=147(63)6x-12×0.5=11.4(64)18.6-18x=7.8(65)2x+2×29=242(66)12x+19x-31=124(67)18x-11x-2=12(68)3.4x+8.4x-4=90.4(69)6.2x-3x-1.5=46.5(70)4x-4×0.8=1.2(71)0.7x+3=20.5(72)21x-3x+4.8=62.4(73)(3.8x+8.6)÷6=6.5(74)2.4+x=8.5(75)7.9-x=1.6(76)16.3-14x=12.1(77)39-x=20(78)2(12x-36)=72(79)10x-17=63(80)x÷40=0.4(81)3x+5x-25=31(82)30x-17x+1.7=4.3(83)0.3x-1.8=3.3(84)4.2x-3.6x=9.6(85)0.5x-1.7=2.8(86)1.2x-2.3×4=1.6(87)103+5x=213(88)17.4+3x=32.4(89)(11x-43)÷4=3(90)2.6x÷13=0.8(91)53x+1.1=17(92)2(0.3x+0.8)=24.4(93)2.7x-1.2=12.3(94)6.5x+4.2=23.7(95)9.3x-2.6x+2.7=22.8(96)90+12x=282(97)188-2x=162(98)2.6x-0.3×19=2.1(99)x÷5=2.6(100)(5x-41)÷4=11(101)4x÷8=0.3(102)1.3+x=5(103)93+x=103(104)(6x-45)÷27=3(105)29x-15×8=54(106)15x+4x-33=157(107)3x=54(108)80x-56x-3.5=6.1(109)x+76=89(110)7(2x+24)=196(111)11x+5x+0.7=16.7(112)(6.8x-7.9)÷5=9.3(113)2.1+x=8.1(114)7x+9x+41=233(115)3.8x-2.6x+4.4=28.4(116)13.3+2.7x=24.1(117)11x-3×1=3.6(118)0.3x=8.4(119)6.9-x=4.3(120)4x+17x-5=121(121)0.2x-1.2×2=1.2(122)7x-32=136(123)4(0.7x+0.6)=47.2(124)2(2.4x-8.8)=40(125)3x=18.9(126)6.3+x=6.7(127)8.9-3x=7.4(128)6(0.7x-5.3)=35.4(129)5x+4.4=11.9(130)1.4x=12.6(131)5.6-x=1.7(132)1.3x+0.9×6=13.2(133)x÷12=3(134)9x+23=104(135)35-x=25(136)7x+5x=108(137)2x=1.2(138)5x+17x+45=177(139)0.5x+2.9=17.4(140)0.2x÷10=0.3(141)1.1+x=8.3(142)14.4-3.2x=1.6(143)47x-31x-3.9=7.3(144)x+8.9=13.1(145)x-4.8=1.1(146)x+85=139(147)x+77=116(148)16.1÷x=2.3(149)12.5-32x=6.1(150)3x÷6=1.4(151)3x+7x+28=188(152)16÷x=0.2(153)91x-50x-2.6=26.1(154)x÷9=1.4(155)40x+6x+4.3=41.1(156)24x-1.8=12.6(157)3.8x-1.2x+0.7=29.3(158)1.2x-0.2×36=10.8(159)(2.4x+4.2)÷18=2.5(160)20x+26=126(161)0.9x+2.2×8=20.3(162)57-3x=45(163)16.2-4.1x=3.9(164)62x-2.1=16.5(165)70x÷10=1.4(166)18+x=66(167)3.9x+1.7×9=27(168)7.6x+5.4x=156(169)2x÷4=38(170)9.6x+4.2=23.4(171)11x-7x=60(172)33+x=101(173)13(15x-46)=182(174)8x-21×7=53(175)89+x=104(176)40x+14x+1.9=72.1(177)6.8-0.4x=4.4(178)8x=16(179)2x=4.2(180)11x-8x=54(181)6x-3x+30=114(182)17x+3×1.4=7.6(183)12(5x+4)=168(184)64x-3.9=15.3(185)7x+20x-2.1=54.6(186)54x÷36=3(187)5x-1.5=18.5(188)8x-7×6=94(189)4x÷3=8(190)8x-27=29(191)(14x+11)÷23=9(192)8x-2x=60(193)4.4x+6.2x=95.4(194)0.8x÷40=0.2(195)0.2x÷11=1(196)17x=34(197)x+2.2=5.6(198)2x-3.5=3.7(199)x+3.3=3.9(200)6x=1.2(201)9.3x-2x-1.7=27.5(202)15x-5x+38=128(203)186-12x=54(204)x-78=21(205)x+5=11.7(206)(12x-12)÷20=6(207)4x+2x+3.8=34.4(208)(7.2x-4)÷5=13.6(209)3(0.3x-9.4)=9.6(210)5x+7x-33=87(211)0.9x+1.1x+4.8=10.8(212)132÷x=12(213)12x+6×0.3=17.4(214)37x-26x-1=6.7(215)6.9x-3.5x+1.4=11.6(216)86x=17.2(217)0.3x÷6=1.8(218)17x-16=154(219)80x+90x+2.1=172.1(220)2.4x+2.9×6=27(221)7.6x=15.2(222)0.8x-1.5×4=10(223)x÷2=3.6(224)9x+8x+4.8=71.1(225)6x+5.9x-1.4=189(226)2(x-3)=82(227)x÷21=6(228)x+20=109(229)2.5x=15(230)9x÷4=2.7(231)21x=105(232)3.3x-1.2x=18.9(233)11.5+96x=30.7(234)1.3x+1.9x-1.1=120.5(235)x+2.1=5.1(236)19x-13x=24(237)10x-2x=56(238)(5.1x-2.4)÷13=0.6(239)36x=10.8(240)(4.9x+5.4)÷13=7.2(241)10x-8x+33=47(242)62x=186(243)14x+16x-9=51(244)13x+18x=155(245)7(2x-17)=77(246)2.9x-1.3x-2.4=50.4(247)7x=1.4(248)x÷18=5(249)11x+2x=91(250)18.6+2x=34.6(251)(1.3x+2)÷7=2.7(252)61x+68x-2.1=23.7(253)11.5-34x=1.3(254)13x-9x+6=54(255)2x-4×22=76(256)4x÷78=2(257)(9.9x+0.9)÷7=7.2(258)(1.1x-6.6)÷33=0.2(259)22x+59=103(260)7+x=61(261)8.1x-7.8x=2.1(262)92÷x=23(263)18x÷6=6(264)5.2x-0.5x+4.5=56.2(265)x-71=16(266)2x+35×0.4=20.6(267)33x=13.2(268)191+3x=341(269)0.3x=6.9(270)42x+4.7=17.3(271)7x+18×7=147(272)21(1.2x-8.9)=39.9(273)5x+5=25(274)70x+55x+2.6=165.1(275)184-12x=40(276)9x+7×2.6=35.3(277)9(3.1x-3.5)=24.3(278)0.2x÷20=0.6(279)4x-30×0.5=1.8(280)164+2x=218(281)5.1+x=8.3(282)0.5x-2.6=15.9(283)8x+62x+0.4=77.4(284)3(0.7x+7.8)=48.6(285)2(1.1x-4.5)=46(286)14.1÷x=4.7(287)4x-15×0.3=10.7(288)8.2+52x=23.8(289)(8.1x-7.5)÷3=16.4(290)8.8-x=7.6(291)11x+3×40=208(292)12x-12×4=24(293)50x+46x-1.2=94.8(294)2(2x-28)=80(295)(6x+39)÷13=15(296)4x÷8=14(297)47x+98x-0.7=144.3(298)0.3x-0.4×25=1.4(299)184+6x=304(300)0.8x+3.2=11.2(301)98+33x=197(302)9-x=5.5(303)2x+4x+11=185(304)2x+35=47(305)2.6x-0.9x=39.1(306)9.2-19x=3.5(307)4.7x-2.9x-1.2=15(308)21x+50=239(309)x÷12=6(310)4x-42=66(311)32x-6x-4.8=57.6(312)43x=86(313)68x-22x+0.9=33.1(314)x÷8=5(315)19x-8x-31=35(316)x-2.7=6.5(317)1.9x+4.8x+0.7=114.6(318)3.1x+5.8=21.3(319)8.5+5.5x=25(320)11x-39×0.2=1(321)8.2-x=1.9(322)105÷x=35(323)12.5-2.5x=5(324)44-x=38(325)48-x=19(326)4.9x-0.8x=41(327)31+x=56(328)3.1x+1.8×6=17(329)(2x+25)÷37=1(330)(4.9x-8.5)÷18=4.7(331)98-x=38(332)3(2x-33)=99(333)29+x=79(334)19x+8x+38=119(335)5.1x-4.4x=1.4(336)72-x=48(337)3.6x+2.7=20.7(338)25x÷15=5(339)71x+20x-2.4=97.7(340)(12x-48)÷4=24(341)15x-11x+1.9=21.5(342)43x-9x-0.9=19.5(343)4.5x-1.6×8=5.2(344)110÷x=11(345)1.5x-3.6=12.9(346)4.3+x=6.3(347)17.1+0.7x=21.3(348)31x-10x-3=11.7(349)(3x+30)÷6=8(350)6.5x+3.5x+0.7=30.7(351)x+5.8=12.9(352)96÷x=12(353)9x+8x+20=360(354)23x+4×11=182(355)2.3+0.4x=5.9(356)25(2.1x-8.7)=45(357)13x-4×2.5=3(358)2x+10×4=198(359)2(2x+6)=20(360)47x+34×0.5=31.1(361)x÷24=7(362)7.3-x=1.3(363)15x-2x-43=48(364)4-x=3.3(365)(2x-21)÷5=7(366)x÷8=14(367)11x-17×0.7=4.6(368)1.1x-0.9x-1.2=9(369)4.9x-1=13.7(370)2(x+11)=66(371)13x-3×15=33(372)3x+18x+24=234(373)23x-5×0.7=1.1(374)5.6÷x=0.8(375)11x-32=67(376)6.6x-6.1x+3.2=4.7(377)12x-6x-33=63(378)(3.1x+6.8)÷35=1.7(379)2x-1.1=12.5(380)3.8x-1.9x-3.7=7.7(381)19.7-0.2x=6.5(382)24÷x=8(383)5.1x+4x-0.3=36.1(384)8.4x+5.2x+3.9=71.9(385)(7x+19)÷3=46(386)18x=72(387)174÷x=6(388)4(x+20)=164(389)0.7x+3.7=17(390)7(0.5x+0.6)=49.7(391)0.7x-2×3=12.2(392)72x-57x-4.3=7.7(393)3x÷4=3(394)12x-7x-14=36(395)4x-3.9=12.9(396)x-22=15(397)15x-11x+13=29(398)9x+2x-39=192(399)14x+48=202(400)1.1x+4×4=19.3(401)19.8-15x=15.3(402)x-63=32(403)18+3x=33.9(404)6x÷14=0.3(405)2(11x-12)=152(406)(9x-5.6)÷31=0.4(407)1.4x+2.8×3=19.6(408)8.8x-1.5x+2=75(409)3.3x+1.1x-0.7=104.9(410)7+x=15(411)77x+38x-3.6=88.4(412)1.4x+0.7×3=4.9(413)8.1x+1.6x=106.7(414)9+2x=24.2(415)0.8x÷16=0.3(416)18x-11x-29=34(417)6.8x+6.7x=135(418)8x-2.1=11.5(419)7.2+3.6x=21.6(420)71x-51=91(421)1.4x-5.5=12.7(422)12x+6x+45=207(423)(19x+11)÷13=14(424)149-17x=13(425)13-x=11(426)13x-10x=18(427)43x-28x+3.3=36.3(428)12.8÷x=0.4(429)13x-2×3=98(430)13x+2x-3=147(431)97-4x=33(432)28x+14×0.5=15.4(433)x+8.9=13.2(434)13+0.7x=27.7(435)2(1.2x+2.5)=21.8(436)8x-4x+42=78(437)(6x-5.5)÷25=1.7(438)5x+45=205(439)0.8x-0.2x-3.2=56.2(440)5x+3x=32(441)3.1x+3.2x=50.4(442)4.8x+4.7x-3.7=24.8(443)7.9+1.5x=25.9(444)77x+73x+2.1=167.1(445)x+6=39(446)4x-6×4=84(447)x÷98=0.2(448)19.7+10x=35.7(449)0.6x-4.4=5.2(450)0.2x÷6=1.7(451)2.2+4x=21.4(452)2.2x+6.1x=24.9(453)x÷39=0.2(454)(7.5x-2.8)÷4=6.8(455)69x÷23=0.6(456)x-69=18(457)10(7x-18)=100(458)1.8x+2.2x+1.6=105.6(459)24x+79x-2.6=121(460)26x+12×9=212(461)x+8.8=13.4(462)8.7x+4.7x=120.6(463)73x-11x+2.3=39.5(464)3x+5.1=20.4(465)(8x+16)÷2=76(466)31x-5.3=10.2(467)(14x+20)÷10=16(468)14-0.4x=9.6(469)x+8.2=13.5(470)9.8x+2.9x-3.5=34.6(471)7x-22=55(472)4.1x+4.9=13.1(473)6x-2x=60(474)92+93x=278(475)9x+7x+44=268(476)15x=6(477)(6x-18)÷3=46(478)0.8x-2.2=9(479)19x+45×0.4=23.7(480)0.4x÷6=0.2(481)16x-12x+14=54(482)9x+39×0.3=28.8(483)10x-6x+7=67(484)7x+2.8x+2=60.8(485)12-4.3x=3.4(486)68-x=32(487)x÷66=2(488)x-1.4=4.1(489)9x+37=109(490)(9x+8)÷2=112(491)3x-53=64(492)x+97=181(493)(11x-12)÷13=16(494)2x+73×2=210(495)95x-78x+4.4=16.3(496)x÷99=0.2(497)34x+5.8=12.6(498)72+4x=124(499)2.3+1.1x=12.2(500)0.2x=6.4(501)4(0.3x-2.9)=20.8(502)x-3.5=2.6(503)3(8x-29)=105(504)12x-5x-17=74(505)0.3x=1.2(506)94-3x=31(507)3.3x-3x-3.6=4.5(508)6.9-x=3.3(509)13x-9x+42=62(510)x+7=88(511)10.8÷x=2.7(512)18.2-11x=1.7(513)(3x+1)÷5=5.6(514)x-12=50(515)7x-1.6x=37.8(516)16x=32(517)3x+12=33(518)17x+15x=352(519)63+x=123(520)10x+5.4=8.4(521)x-33=65(522)3(0.2x+7.9)=31.5(523)30x+2.2=14.2(524)x-46=25(525)12x-8x+4.4=28.8(526)4.7x+2.4x+1=79.1(527)4x+26×0.6=29.6(528)1.6x-0.2x+3.7=89.1(529)3.2x-2.2x+2.9=31.9(530)2(x+26)=94(531)8.7x+1.6x-0.6=112.7(532)1x+1.1x+4.1=88.1(533)x-37=18(534)10.9+77x=26.3(535)x+82=97(536)15.4÷x=0.2(537)44x÷11=8(538)12.6-4x=11(539)190-2x=172(540)7x+17×7=182參考答案(1)x=3(2)x=79(3)x=8(4)x=7(5)x=24(6)x=0.8(7)x=16(8)x=9.7(9)x=9.5(10)x=3.6(11)x=67(12)x=56(13)x=2.7(14)x=11(15)x=8(16)x=72(17)x=26(18)x=2(19)x=4.2(20)x=4(21)x=29(22)x=9(23)x=198(24)x=14(25)x=3(26)x=0.3(27)x=3.1(28)x=13(29)x=2(30)x=2(31)x=5(32)x=3(33)x=0.6(34)x=9.8(35)x=5(36)x=4(37)x=3(38)x=68(39)x=7(40)x=42(41)x=7.9(42)x=6(43)x=0.4(44)x=7.2(45)x=19(46)x=0.5(47)x=26(48)x=7(49)x=7(50)x=7(51)x=10(52)x=11(53)x=4(54)x=19(55)x=3(56)x=12(57)x=7(58)x=3(59)x=15(60)x=3(61)x=19.5(62)x=13(63)x=2.9(64)x=0.6(65)x=92(66)x=5(67)x=2(68)x=8(69)x=15(70)x=1.1(71)x=25(72)x=3.2(73)x=8(74)x=6.1(75)x=6.3(76)x=0.3(77)x=19(78)x=6(79)x=8(80)x=16(81)x=7(82)x=0.2(83)x=17(84)x=16(85)x=9(86)x=9(87)x=22(88)x=5(89)x=5(90)x=4(91)x=0.3(92)x=38(93)x=5(94)x=3(95)x=3(96)x=16(97)x=13(98)x=3(99)x=13(100)x=17(101)x=0.6(102)x=3.7(103)x=10(104)x=21(105)x=6(106)x=10(107)x=18(108)x=0.4(109)x=13(110)x=2(111)x=1(112)x=8(113)x=6(114)x=12(115)x=20(116)x=4(117)x=0.6(118)x=28(119)x=2.6(120)x=6(121)x=18(122)x=24(123)x=16(124)x=12(125)x=6.3(126)x=0.4(127)x=0.5(128)x=16(129)x=1.5(130)x=9(131)x=3.9(132)x=6(133)x=36(134)x=9(135)x=10(136)x=9(137)x=0.6(138)x=6(139)x=29(140)x=15(141)x=7.2(142)x=4(143)x=0.7(144)x=4.2(145)x=5.9(146)x=54(147)x=39(148)x=7(149)x=0.2(150)x=2.8(151)x=16(152)x=80(153)x=0.7(154)x=12.6(155)x=0.8(156)x=0.6(157)x=11(158)x=15(159)x=17(160)x=5(161)x=3(162)x=4(163)x=3(164)x=0.3(165)x=0.2(166)x=48(167)x=3(168)x=12(169)x=76(170)x=2(171)x=15(172)x=68(173)x=4(174)x=25(175)x=15(176)x=1.3(177)x=6(178)x=2(179)x=2.1(180)x=18(181)x=28(182)x=0.2(183)x=2(184)x=0.3(185)x=2.1(186)x=2(187)x=4(188)x=17(189)x=6(190)x=7(191)x=14(192)x=10(193)x=9(194)x=10(195)x=55(196)x=2(197)x=3.4(198)x=3.6(199)x=0.6(200)x=0.2(201)x=4(202)x=9(203)x=11(204)x=99(205)x=6.7(206)x=11(207)x=5.1(208)x=10(209)x=42(210)x=10(211)x=3(212)x=11(213)x=1.3(214)x=0.7(215)x=3(216)x=0.2(217)x=36(218)x=10(219)x=1(220)x=4(221)x=2(222)x=20(223)x=7.2(224)x=3.9(225)x=16(226)x=44(227)x=126(228)x=89(229)x=6(230)x=1.2(231)x=5(232)x=9(233)x=0.2(234)x=38(235)x=3(236)x=4(237)x=7(238)x=2(239)x=0.3(240)x=18(241)x=7(242)x=3(243)x=2(244)x=5(245)x=14(246)x=33(247)x=0.2(248)x=90(249)x=7(250)x=8(251)x=13(252)x=0.2(253)x=0.3(254)x=12(255)x=82(256)x=39(257)x=5(258)x=12(259)x=2(260)x=54(261)x=7(262)x=4(263)x=2(264)x=11(265)x=87(266)x=3.3(267)x=0.4(268)x=50(269)x=23(270)x=0.3(271)x=3(272)x=9(273)x=4(274)x=1.3(275)x=12(276)x=1.9(277)x=2(278)x=60(279)x=4.2(280)x=27(281)x=3.2(282)x=37(283)x=1.1(284)x=12(285)x=25(286)x=3(287)x=3.8(288)x=0.3(289)x=7(290)x=1.2(291)x=8(292)x=6(293)x=1(294)x=34(295)x=26(296)x=28(297)x=1(298)x=38(299)x=20(300)x=10(301)x=3(302)x=3.5(303)x=29(304)x=6(305)x=23(306)x=0.3(307)x=9(308)x=9(309)x=72(310)x=27(311)x=2.4(312)x=2(313)x=0.7(314)x=40(315)x=6(316)x=9.2(317)x=17(318)x=5(319)x=3(320)x=0.8(321)x=6.3(322)x=3(323)x=3(324)x=6(325)x=29(326)x=10(327)x=25(328)x=2(329)x=6(330)x=19(331)x=60(332)x=33(333)x=50(334)x=3(335)x=2(336)x=24(337)x=5(338)x=3(339)x=1.1(340)x=12(341)x=4.9(342)x=0.6(343)x=4(344)x=10(345)x=11(346)x=2(347)x=6(348)x=0.7(349)x=6(350)x=3(351)x=7.1(352)x=8(353)x=20(354)x=6(355)x=9(356)x=5(357)x=1(358)x=79(359)x=2(360)x=0.3(361)x=168(362)x=6(363)x=7(364)x=0.7(365)x=28(366)x=112(367)x=1.5(368)x=51(369)x=3(370)x=22(371)x=6(372)x=10(373)x=0.2(374)x=7(375)x=9(376)x=3(377)x=16(378)x=17(379)x=6.8(380)x=6(381)x=66(382)x=3(383)x=4(384)x=5(385)x=17(386)x=4(387)x=29(388)x=21(389)x=19(390)x=13(391)x=26(392)x=0.8(393)x=4(394)x=1