五年級數學(方程)專項練習題及答案匯編(1)0.4x=2.4(2)95x-51x+0.5=35.7(3)6x+8×16=260(4)x-1.1=7(5)74x=14.8(6)0.4x÷40=0.2(7)41x-27x-1.3=7.1(8)2.8x+7.6x=52(9)0.6x-0.2×19=2.8(10)16x+45=77(11)2(22x-38)=100(12)16x+12x-41=211(13)(17x-47)÷5=45(14)8x-2.5=12.7(15)9.5-x=2.1(16)12x+8x-49=171(17)15x+2.7=7.2(18)(16x+34)÷35=6(19)6.4x-3.7=9.1(20)176÷x=44(21)6x-4×4.2=1.8(22)4(3x+12)=120(23)5x-25×0.2=14(24)96-x=60(25)8.2-x=5.3(26)5.2-x=2.3(27)20x=80(28)7.6x+2.1x+1.6=59.8(29)17x-3x=112(30)(1.7x-6.7)÷23=0.3(31)43x+36x+2.2=41.7(32)4x-2.5=8.3(33)58+x=118(34)2x-5.6=2.4(35)0.3x+1.5x+3.7=45.1(36)92x-5.6=12.8(37)5.7-1.5x=1.2(38)197-10x=167(39)2.6x-0.3×20=1.8(40)7.2+2x=11.2(41)(12x-42)÷3=70(42)1.3x+1.2x-2.5=175(43)17.1-0.2x=16.3(44)(2.1x-3.9)÷6=4.6(45)0.4÷x=0.2(46)(6x-22)÷2=58(47)0.4x+3.8=15.4(48)16.4-4x=8.4(49)22x÷55=2(50)2(2x+45)=142(51)8+x=17.1(52)1.9+0.4x=17.1(53)8.4÷x=0.2(54)x+21=28(55)(10x+30)÷4=55(56)16x+11=59(57)62÷x=2(58)17x-5x-18=90(59)139-3x=115(60)0.3+x=2.4(61)8x-5x+26=95(62)11x-23×3=74(63)26x÷13=0.8(64)117+2x=161(65)x÷5=1.8(66)78x-4.8=10.8(67)0.4x+6.4x+4.9=52.5(68)x+7.3=8.3(69)3.9x+3.6x-4.6=47.9(70)0.7x-0.4x+3.8=22.1(71)x-15=25(72)10x+9x=133(73)7x-4x-31=47(74)5x+3x-31=81(75)x÷27=0.2(76)2x+0.6x+0.8=107.4(77)36x=108(78)14.1+3x=32.1(79)26x-44=86(80)2.5x÷30=0.5(81)11x-6x=75(82)4x+7x+4=103(83)14x-11x+42=72(84)9x=99(85)9x=180(86)4.8x-0.3×17=9.3(87)11.8-10x=2.8(88)67x+20x-4.2=39.3(89)97x+46x-0.6=142.4(90)3x+4×1.1=12.8(91)4.5x+5.4x=69.3(92)7x+4×40=300(93)46-x=25(94)2(1.6x+5.1)=45.4(95)4x+9.5x-3.9=77.1(96)7(4x-7)=91(97)8.9+x=15.9(98)15x-3x+22=70(99)x÷23=0.2(100)45-x=28(101)8.7-x=6.8(102)132÷x=44(103)0.5x+1.9×7=25.8(104)7.3x-2.3x=50(105)47x-18×0.7=6.2(106)1.3x+0.4x+0.7=56.8(107)x-5=24(108)27x=162(109)10x-8x+41=79(110)7x+2x=144(111)57x+43x-0.9=169.1(112)2x+30=40(113)10x-4.8=15.2(114)6x+25x-1.8=81.9(115)7.5-x=4.6(116)2x+26=80(117)13x+65×3=247(118)3x+3×65=288(119)194-42x=26(120)64x-58x+0.3=7.5(121)8(0.3x-8.6)=22.4(122)24x+30=222(123)8÷x=0.5(124)4x=6(125)12.3-37x=4.9(126)5(2.3x-8.6)=49(127)54+11x=164(128)9.4-6x=4(129)4(0.6x+0.6)=7.2(130)0.9x-0.2x-3.9=26.2(131)12.9+4.3x=25.8(132)16x-5x=77(133)0.4x+1.1x=57(134)4x+5×3.2=30(135)4x-21=55(136)17.7-21x=5.1(137)x÷15=6(138)15.2÷x=0.2(139)x+60=62(140)65x÷13=15(141)8.2x-3.5x+2.9=54.6(142)18x-37=17(143)24x+57×3=315(144)(8x+47)÷15=9(145)1.2x÷2=4.8(146)4.1+16x=16.9(147)12x=16.8(148)9(23x-48)=189(149)x÷6=2.5(150)2(x+4)=40(151)5.7+0.5x=15.7(152)8x+11=51(153)33-3x=27(154)9x+10x+40=249(155)58x+56x+0.2=68.6(156)14x=11.2(157)x-2.6=5.5(158)4.7x+0.8×25=29.4(159)3x+3.2=4.7(160)7.2x÷3=4.8(161)0.2x+0.3×47=17.3(162)14x+41x-3=90.5(163)17x+10x=54(164)2(x+3)=40(165)82+8x=210(166)73x+36x+0.7=87.9(167)5(0.3x-3.1)=8.5(168)4x-4×35=20(169)140+2x=148(170)0.4x÷74=0.2(171)2x-11×0.6=2.4(172)0.9x÷57=0.3(173)90x-71x-0.2=9.3(174)2.7x-1.4=17.5(175)1.5+x=6.8(176)3(3x-49)=195(177)3x-3.8=7(178)5x+3x+4=148(179)(9x+2)÷22=5(180)39x+22×0.3=26.1(181)8.5x+1.5x+2.2=82.2(182)x-60=24(183)7.3+x=11.4(184)17x-10x+33=54(185)119-3x=50(186)13x+3×4=18.5(187)9.5x-0.8x+0.8=87.8(188)34x-1.1=12.5(189)x÷13=9(190)4x-8×0.2=18(191)5.5x-1.7x-4.5=14.5(192)3.9-x=2.5(193)5(6.1x-8.5)=18.5(194)1.1x+0.3x+2.4=122.8(195)16x÷8=0.6(196)70-x=47(197)2(0.7x+7.8)=29.6(198)9x-7x=34(199)12x÷30=4(200)16x-13x+21=36(201)8.9x+7.9x-1=133.4(202)23x-4×0.3=14.9(203)1.1x+0.6×14=27.1(204)2x+3×9=91(205)x÷31=0.5(206)22x+6x-1.7=96.3(207)15x-5x-48=32(208)62x-53x-4.5=3.6(209)4(4x-25)=124(210)(7x+2)÷25=4(211)3(4x+37)=135(212)13.7+2x=31.5(213)12.1÷x=1.1(214)1.8x+2.9=17.3(215)9.3+8x=15.7(216)x+0.3=9.3(217)69x-27x-3=22.2(218)5x-20×2=40(219)191-11x=59(220)1.5x-0.9×2=11.7(221)15x-5x-43=77(222)9.1x-7.1x-4.2=1.8(223)19.1-4x=3.9(224)(0.7x+4.1)÷4=4(225)17x-5x+17=41(226)12x-8x+4.2=22.2(227)80÷x=20(228)2x+5x-23=257(229)2.7+0.3x=6.6(230)(4.9x+2.2)÷11=5.1(231)8.3x-6.6x=20.4(232)x-1=5.6(233)2x÷3=14(234)123÷x=41(235)x+45=143(236)2.6÷x=1.3(237)4x÷2=34(238)38x+39=153(239)6x+24x-4.1=40.9(240)x+6.3=7.3(241)39-x=18(242)(3.5x-8.2)÷8=5.1(243)x-45=46(244)2.9+2x=3.9(245)75x-3.1=11.9(246)79+x=132(247)12x+6x+42=132(248)(8x+40)÷4=66(249)12.7-0.2x=1.3(250)10x=9(251)7x-20×2=121(252)0.4x+4=16.8(253)24x÷6=16(254)x+7.4=9.9(255)2.8x+4.3×3=29.7(256)x÷11=1.3(257)2.6x-2.3×4=9(258)2(x+36)=92(259)33x=9.9(260)x+49=89(261)8.6x+7.6x=129.6(262)2x+37=109(263)11.1-2x=3.7(264)x÷10=8(265)(7.8x-2)÷11=6.2(266)0.3x-4=1.4(267)49x=147(268)3.9x-2.2x-1.7=30.6(269)199+81x=361(270)4x÷2=3(271)12x+7x+7=216(272)6x÷60=0.3(273)6.3x+5.7x-0.2=71.8(274)13x-9x-2=14(275)4.3x-0.3x+0.7=36.7(276)1.4x+0.4x-2.5=64.1(277)10x+8x-29=223(278)176÷x=16(279)56+x=67(280)12(0.6x+0.4)=26.4(281)14.3-5x=7.8(282)12x-8x=52(283)(10x+5)÷7=15(284)74+x=93(285)x+3=8.7(286)92-x=82(287)1.1x=14.3(288)6x-3x+3.5=26.9(289)0.7x=1.4(290)x-2.7=3.7(291)94x=188(292)x-37=43(293)21x÷3=4.9(294)14x+12x=156(295)(0.7x+8.9)÷4=3.1(296)2.7x+2.6×3=26.7(297)35x-9×1.7=2.2(298)10x-7x+3.3=26.4(299)(7.6x-8)÷4=15.1(300)15x+2x-6=113(301)140+7x=287(302)18.5÷x=0.5(303)3(0.7x+4.9)=27.3(304)0.9x=9.9(305)47-x=12(306)0.3x-0.8×3=5.7(307)7x-49=28(308)x+3.7=8(309)3x=5.7(310)6.9x-4.3x=28.6(311)x÷3=37(312)4x÷84=2(313)2x+1.7=2.7(314)18x-13x+30=55(315)0.3x+2.2=11.2(316)(9.1x+7.8)÷13=4.8(317)3.2x-1.6x=44.8(318)9.3x=18.6(319)10x-4x-37=53(320)17x-8x-1.8=44.1(321)4.6+5.3x=15.2(322)49x-25x+1.3=49.3(323)10x+13x=92(324)4(0.5x-3.5)=6(325)136+18x=208(326)(4x+20)÷4=10(327)16.6-1.5x=10.6(328)2(5.1x-2.6)=45.8(329)3x-18×2=75(330)(19x-21)÷8=14(331)2.3x-1.1x+2.9=13.7(332)x-25=21(333)97+x=124(334)92x-54x+2.8=37(335)x-0.7=4.5(336)7.7x+7.2x-4.4=85(337)2.3x+6.3x=43(338)3(1.3x+0.6)=25.2(339)2x-3×2.2=3(340)(1.4x+8.8)÷25=0.8(341)x+6=104(342)1x+3.2=7.2(343)17.5-1.6x=14.3(344)24x+5×32=256(345)3x-23=175(346)5x+14×0.5=12(347)14x-7x+35=91(348)77x-33x+3.1=33.9(349)70-x=41(350)1.4x-0.2×14=7(351)17.1-6.7x=3.7(352)189+31x=375(353)168-2x=12(354)0.2x+4.6=7.2(355)84x+70x+4.7=174.1(356)9(2.4x-4.2)=27(357)x+8=92(358)105-13x=14(359)26x-38×3=16(360)(5x+10)÷3=30(361)9x-3x=42(362)36x+23x+2.5=155.9(363)98x-5x-4=89(364)1.3x÷26=0.2(365)4.3x-3.4=13.8(366)3.9+2x=9.1(367)6.7-x=6(368)3x+15x-26=190(369)2x+21×9=275(370)(8.1x+1.5)÷7=14.1(371)x+5.8=12(372)5.6x-5.4x+4.4=7(373)8.7x-6.5x=19.8(374)(2.7x+4.7)÷22=2.3(375)6x-12×2=108(376)35x-18x-4.6=5.6(377)x+85=139(378)2(1.7x-7.2)=6(379)6x+3x=108(380)10.1+4x=30.1(381)14x-3.2=13.6(382)3(1.4x+0.6)=48(383)11x+13x+24=144(384)11x-2×3.3=4.4(385)3x+44=173(386)x÷13=13(387)4.7x+4.9x=28.8(388)13x+9x=88(389)(9.1x+7.8)÷13=7.6(390)9x-4x-24=26(391)5x+53×3=284(392)1x-1=1(393)18.1-5.3x=2.2(394)x-40=24(395)7.5+x=14.1(396)0.4x-1.9×2=1.4(397)x÷44=3(398)3.2-x=2.3(399)2x÷44=0.3(400)76x=152(401)35x+3.3=17.3(402)x-18=81(403)x-4.8=3.2(404)2x+1.7=9.9(405)17.8-4.5x=8.8(406)6.3x÷27=0.7(407)162÷x=2(408)4.6x-4.3x=4.2(409)0.7x-0.3×33=7.6(410)x+3.9=4.6(411)x-30=54(412)4.3+5x=20.3(413)120÷x=15(414)18x÷6=3(415)71+x=100(416)0.2x+1.8×8=16.4(417)(10x-40)÷10=20(418)37x+54x+1.2=28.5(419)0.2x+5=10.4(420)3.1x-2.6x=15(421)3(5x+6)=153(422)0.2x=4.2(423)(6x-19)÷7=5(424)10x-5x-40=55(425)x+68=130(426)2x÷6=2.7(427)5.9x-5.6x-1.6=2.9(428)15x+6x=273(429)41x-31=133(430)57x-2x-3.6=51.4(431)43x+12×1.3=24.2(432)3.1x-0.5x+2.4=54.4(433)0.4x+2×5=20.4(434)87+x=153(435)2(2x+36)=120(436)x+1.9=5.1(437)2.5+0.5x=21.5(438)1.5x+0.9x-3=102.6(439)3x+16x=209(440)x÷11=13(441)(3.2x-3.1)÷5=7.7(442)2(2x+40)=136(443)18.5÷x=3.7(444)21x-7x+2.3=41.5(445)0.9x+2.5x=61.2(446)5.7+x=15.3(447)26x-42=10(448)(4.5x-3)÷10=6.9(449)92+x=170(450)18x+2x+7=227(451)139-48x=43(452)7.2x-0.4x-4.7=36.1(453)16.6-0.5x=5.1(454)13(4x-2)=182(455)45+x=50(456)70x+3.3=17.3(457)6.1x-1.5=16.8(458)2.5x-1.9x-0.8=20.2(459)(6.6x+5.6)÷2=25.9(460)20x-2×24=32(461)7.5x=15(462)66-x=28(463)3x+8.2x-0.7=133.7(464)1x=3(465)40x+44x+4.7=155.9(466)8(x-2.6)=43.2(467)62x+40x-1.5=151.5(468)0.2x+1.3=7.7(469)9(4x-38)=198(470)0.6x+4.6=22(471)4x+42×0.4=36.4(472)(0.4x-1)÷5=0.6(473)12x-2x=40(474)x÷9=9(475)90+27x=252(476)16(12x-48)=192(477)12.4+0.9x=18.7(478)7.6x-3.9=11.3(479)(5.8x-1.4)÷28=1.4(480)17x-2x-3.3=61.2(481)2.3x+0.2x+4.6=99.6(482)x-4.7=2.2(483)8x-2x=36(484)8.4x+4.8x=26.4(485)17.6+2x=36(486)2x-3×12=48(487)5x+18x-9=152(488)20x=60(489)3x=9(490)8.1+x=13.7(491)15x+8x-38=77(492)8.1x-2.3x-0.7=63.1(493)x-1.6=3.6(494)9.2x-8.2x-0.2=2.8(495)x÷49=0.4(496)18÷x=3(497)12x+15x+0.3=165(498)x-6=3.5(499)2x=16(500)0.5x+0.5×10=20.5(501)9.8x-2.7x=56.8(502)15x÷40=0.3(503)6.8+x=15(504)x÷12=1(505)x+12=103(506)(8x-44)÷13=4(507)7x+6x+3=133(508)13(4x-12)=156(509)6x+4×4=30.4(510)2x+6x-3.2=12.8(511)40x÷16=10(512)3x÷6=6(513)2(2.1x+3.1)=27.2(514)189÷x=3(515)5.3x+5.4x=139.1(516)5.5x+7.1x+3=53.4(517)4(1.6x+4.5)=30.8(518)(11x-18)÷38=3(519)7x-5x=12(520)x÷15=12(521)40x+29×0.2=17.8(522)14.9+0.6x=26.3(523)9x+5x+44=310(524)2x+3.8=17.6(525)5.9x-5.2x+1.9=10.3(526)7x-41=85(527)4.6-x=2.1(528)8.1x-0.5x+3.1=94.3(529)0.9x÷3=4.8(530)x÷46=0.4(531)17x+25x+1.1=131.3(532)8.2x-6x=4.4(533)22x+5.9=16.9(534)10.1-4x=1.3(535)24x+3.5=20.3(536)(14x-9)÷9=13(537)14x-12x-6=20(538)17x-3.1=5.4(539)3.1x=9.3(540)43x-38=134參考答案(1)x=6(2)x=0.8(3)x=22(4)x=8.1(5)x=0.2(6)x=20(7)x=0.6(8)x=5(9)x=11(10)x=2(11)x=4(12)x=9(13)x=16(14)x=1.9(15)x=7.4(16)x=11(17)x=0.3(18)x=11(19)x=2(20)x=4(21)x=3.1(22)x=6(23)x=3.8(24)x=36(25)x=2.9(26)x=2.9(27)x=4(28)x=6(29)x=8(30)x=8(31)x=0.5(32)x=2.7(33)x=60(34)x=4(35)x=23(36)x=0.2(37)x=3(38)x=3(39)x=3(40)x=2(41)x=21(42)x=71(43)x=4(44)x=15(45)x=2(46)x=23(47)x=29(48)x=2(49)x=5(50)x=13(51)x=9.1(52)x=38(53)x=42(54)x=7(55)x=19(56)x=3(57)x=31(58)x=9(59)x=8(60)x=2.1(61)x=23(62)x=13(63)x=0.4(64)x=22(65)x=9(66)x=0.2(67)x=7(68)x=1(69)x=7(70)x=61(71)x=40(72)x=7(73)x=26(74)x=14(75)x=5.4(76)x=41(77)x=3(78)x=6(79)x=5(80)x=6(81)x=15(82)x=9(83)x=10(84)x=11(85)x=20(86)x=3(87)x=0.9(88)x=0.5(89)x=1(90)x=2.8(91)x=7(92)x=20(93)x=21(94)x=11(95)x=6(96)x=5(97)x=7(98)x=4(99)x=4.6(100)x=17(101)x=1.9(102)x=3(103)x=25(104)x=10(105)x=0.4(106)x=33(107)x=29(108)x=6(109)x=19(110)x=16(111)x=1.7(112)x=5(113)x=2(114)x=2.7(115)x=2.9(116)x=27(117)x=4(118)x=31(119)x=4(120)x=1.2(121)x=38(122)x=8(123)x=16(124)x=1.5(125)x=0.2(126)x=8(127)x=10(128)x=0.9(129)x=2(130)x=43(131)x=3(132)x=7(133)x=38(134)x=3.5(135)x=19(136)x=0.6(137)x=90(138)x=76(139)x=2(140)x=3(141)x=11(142)x=3(143)x=6(144)x=11(145)x=8(146)x=0.8(147)x=1.4(148)x=3(149)x=15(150)x=16(151)x=20(152)x=5(153)x=2(154)x=11(155)x=0.6(156)x=0.8(157)x=8.1(158)x=2(159)x=0.5(160)x=2(161)x=16(162)x=1.7(163)x=2(164)x=17(165)x=16(166)x=0.8(167)x=16(168)x=40(169)x=4(170)x=37(171)x=4.5(172)x=19(173)x=0.5(174)x=7(175)x=5.3(176)x=38(177)x=3.6(178)x=18(179)x=12(180)x=0.5(181)x=8(182)x=84(183)x=4.1(184)x=3(185)x=23(186)x=0.5(187)x=10(188)x=0.4(189)x=117(190)x=4.9(191)x=5(192)x=1.4(193)x=2(194)x=86(195)x=0.3(196)x=23(197)x=10(198)x=17(199)x=10(200)x=5(201)x=8(202)x=0.7(203)x=17(204)x=32(205)x=15.5(206)x=3.5(207)x=8(208)x=0.9(209)x=14(210)x=14(211)x=2(212)x=8.9(213)x=11(214)x=8(215)x=0.8(216)x=9(217)x=0.6(218)x=16(219)x=12(220)x=9(221)x=12(222)x=3(223)x=3.8(224)x=17(225)x=2(226)x=4.5(227)x=4(228)x=40(229)x=13(230)x=11(231)x=12(232)x=6.6(233)x=21(234)x=3(235)x=98(236)x=2(237)x=17(238)x=3(239)x=1.5(240)x=1(241)x=21(242)x=14(243)x=91(244)x=0.5(245)x=0.2(246)x=53(247)x=5(248)x=28(249)x=57(250)x=0.9(251)x=23(252)x=32(253)x=4(254)x=2.5(255)x=6(256)x=14.3(257)x=7(258)x=10(259)x=0.3(260)x=40(261)x=8(262)x=36(263)x=3.7(264)x=80(265)x=9(266)x=18(267)x=3(268)x=19(269)x=2(270)x=1.5(271)x=11(272)x=3(273)x=6(274)x=4(275)x=9(276)x=37(277)x=14(278)x=11(279)x=11(280)x=3(281)x=1.3(282)x=13(283)x=10(284)x=19(285)x=5.7(286)x=10(287)x=13(288)x=7.8(289)x=2(290)x=6.4(291)x=2(292)x=80(293)x=0.7(294)x=6(295)x=5(296)x=7(297)x=0.5(298)x=7.7(299)x=9(300)x=7(301)x=21(302)x=37(303)x=6(304)x=11(305)x=35(306)x=27(307)x=11(308)x=4.3(309)x=1.9(310)x=11(311)x=111(312)x=42(313)x=0.5(314)x=5(315)x=30(316)x=6(317)x=28(318)x=2(319)x=15(320)x=5.1(321)x=2(322)x=2(323)x=4(324)x=10(325)x=4(326)x=5(327)x=4(328)x=5(329)x=37(330)x=7(331)x=9(332)x=46(333)x=27(334)x=0.9(335)x=5.2(336)x=6(337)x=5(338)x=6(339)x=4.8(340)x=8(341)x=98(342)x=4(343)x=2(344)x=4(345)x=66(346)x=1(347)x=8(348)x=0.7(349)x=29(350)x=7(351)x=2(352)x=6(353)x=78(354)x=13(355)x=1.1(356)x=3(357)x=84(358)x=7(359)x=5(360)x=16(361)x=7(362)x=2.6(363)x=1(364)x=4(365)x=4(366)x=2.6(367)x=0.7(368)x=12(369)x=43(370)x=12(371)x=6.2(372)x=13(373)x=9(374)x=17(375)x=22(376)x=0.6(377)x=54(378)x=6(379)x=12(380)x=5(381)x=1.2(382)x=11(383)x=5(384)x=1(385)x=43(386)x=169(387)x=3(388)x=4(389)x=10(390)x=10(391)x=25(392)x=2(393)x=3(394)x=