五年級數學(方程)習題及答案匯編(1)x÷2=3.2(2)3x+43=115(3)5.4÷x=0.3(4)3.7x-2x=6.8(5)6x+19x=175(6)2.4÷x=0.4(7)47x-41=53(8)2.1x=18.9(9)3x+1.3×2=17.6(10)66x-31x+2.6=41.1(11)10x-1.7=11.3(12)92x-35=149(13)8.8x+9.4x-4=141.6(14)x+33=131(15)3(3x+14)=141(16)19x-6x=65(17)6.1x+5.4x=34.5(18)x÷13=0.9(19)12.5-1x=10.5(20)8x+4x=144(21)5.4+0.7x=8.9(22)7x-3x+2.7=39.1(23)6(x-29)=78(24)18x-14x+20=36(25)2(2x+20)=156(26)6.4x-4.8x-4.1=11.9(27)47+2x=115(28)4.7x+3.6x=116.2(29)0.3x-1.5=15.9(30)13x-9x+23=47(31)3(0.9x-2.1)=31.5(32)14x-7x-18=45(33)x-5.1=1.7(34)7x+6x=65(35)13x+17x+8=98(36)20x-10x+3.7=25.7(37)4.4x+6.8x=44.8(38)44x-17x-2.2=57.2(39)0.7x-4.7×2=1.8(40)7(8x-31)=119(41)40x+37x+1.5=93.9(42)17.6+1.2x=36.8(43)17x+34x+0.4=102.4(44)3(2.1x+3.2)=28.5(45)11x-6x=75(46)15.4-9x=7.3(47)6.3x+1.9x=65.6(48)9x-5×8=59(49)3(0.4x-0.5)=27.3(50)83-x=14(51)2x+15x-45=159(52)7x-3x+31=51(53)1.4x-1.6×3=7.8(54)5x-2x-19=77(55)5(17x-19)=160(56)12x-2x-44=56(57)1.1x=19.8(58)4x-23×0.4=9.2(59)11x+82x+0.8=19.4(60)59+36x=131(61)3x-5.9=3.4(62)2.2x-1.5x-0.4=3.1(63)6x÷5=18(64)12.5-4.6x=3.3(65)1.1x+3x=61.5(66)13.3+20x=23.3(67)28x-3.6=4.8(68)(4.2x+9.6)÷22=3.3(69)25+11x=157(70)9x+10x+10=276(71)0.4x+5.9=15.9(72)0.9x÷4=4.5(73)8x+4×49=244(74)58x÷6=29(75)4.2+0.3x=24(76)1x÷5=1.2(77)2x-3.4=11(78)x+1.6=11(79)5.2x-4.6x+2=9.2(80)1.3x+2.3x-2.4=138(81)1.4x-0.2×17=13.4(82)(17x-42)÷14=14(83)18x+10x+18=158(84)3.6x-1.3x+1.2=49.5(85)50x+30x-3=45(86)3x+4×1.1=5.9(87)6x+24=144(88)(x+37)÷2=32(89)(2x-16)÷3=14(90)42x÷6=14(91)2.8x-1.7x-4.4=19.8(92)2.8x-5.9=5.3(93)7.4-x=2.2(94)120÷x=6(95)x-33=56(96)17x+9x+24=232(97)16x+80×2=240(98)8x-3x=115(99)1.9+x=3.1(100)9.9-x=4.1(101)4x+11×1.8=37.4(102)2x+6x+2.4=12.8(103)0.8x+2.9=18.1(104)11(4x+5)=143(105)12x-7x=55(106)34x+34×0.2=13.6(107)18x+6x-25=239(108)x-4=3.3(109)(15x+15)÷3=35(110)15x-5.8=7.7(111)5x+12x=272(112)11x+6x=204(113)(1.1x-3.1)÷5=0.7(114)0.3x+0.4×23=17.9(115)3.4÷x=0.2(116)3.5x-1.7x=9(117)x-30=19(118)51x-2x+3=81.4(119)(14x-48)÷10=19(120)4.1x+2.5x+0.4=112.6(121)7.6x+5.3x+3.8=132.8(122)3x÷12=0.5(123)0.2x+0.2×22=13.2(124)(5x-10)÷10=1(125)25+x=31(126)31x+17x-2.4=12(127)1x+1.4=18.4(128)2.5+x=4.9(129)2x=7(130)3.4x+8.3x=140.4(131)5.1x-2.3x+2.7=47.5(132)2(x+28)=98(133)1.2x+3.7x-2.8=124.6(134)44-x=30(135)48+5x=178(136)10x-4x-22=50(137)34x+4.3=14.5(138)(x-3.8)÷4=0.3(139)1.3x-0.5x=23.2(140)x÷6=30(141)(7x+21)÷7=24(142)14x+14=112(143)x-15=66(144)14x+27=181(145)92-3x=77(146)16x-4x+32=56(147)x÷99=0.2(148)11-0.9x=6.5(149)2.4x+1.1x=98(150)2.5x=15(151)2.9+4x=14.5(152)8x=144(153)5.4x+9.2x+1.8=45.6(154)(9.4x+2.6)÷7=4.4(155)2.6+0.2x=4.6(156)2.4x-0.2×12=16.8(157)3x+1.6=12.1(158)2.4x+0.4×25=14.8(159)11.7+4x=13.3(160)63+x=78(161)10x+3x=52(162)2x÷10=1.6(163)4(2.9x+1.9)=42.4(164)13.6-11x=4.8(165)0.2x+3.9=20.3(166)15.4+1x=29.4(167)x-2=50(168)(3.5x+8.9)÷6=4.4(169)0.6x=7.8(170)x÷8=2.2(171)17x-10x-39=17(172)8.4x-2.5x+4.8=28.4(173)(1.9x+7)÷2=5.4(174)3x-2×52=67(175)2.7-x=1.9(176)6(2x+3)=42(177)7.9x-2x-3.2=44(178)45x+62x-4.7=113(179)5x-26=159(180)54x+15=123(181)3.5+x=9.2(182)(2.4x-5.4)÷3=11.8(183)x-55=12(184)15.6÷x=3.9(185)38-x=16(186)x÷10=0.5(187)2.1+14x=20.3(188)x+25=81(189)1x-2.9=5.1(190)0.8x=3.2(191)0.2x-3.3=15.1(192)2.6x+4=22.2(193)x-32=56(194)1.1x+4.7=13.5(195)10.1+15x=17.6(196)7x+6x+36=166(197)30x-3.8=14.2(198)81-x=20(199)4x-4×39=28(200)70x-32x+1.4=12.8(201)18x÷12=0.9(202)x÷66=0.2(203)20x÷16=10(204)40x+3.8=11.8(205)3(4x+13)=159(206)x+8=13.9(207)3(4x-8)=36(208)0.2x+4.9×2=11(209)49x-37x-2.3=21.7(210)13x+10x-39=99(211)x-5=21(212)90÷x=18(213)7x-4x=84(214)3x=13.8(215)0.2x-2.6×2=1.2(216)8x+2=17.2(217)x+39=129(218)5x+9x+45=311(219)30x+45x-1.3=13.7(220)20÷x=4(221)8.1-x=1.9(222)8.2x÷4=4.1(223)x+10=25(224)18.5÷x=0.5(225)3.5x-1.7x-2.1=1.5(226)7x-4x=75(227)180+4x=232(228)10.9+49x=30.5(229)0.4x-3.8×4=4.4(230)12(0.3x-6.3)=36(231)(1.4x+4.4)÷5=2(232)8.3+x=13.5(233)10x-4x-14=64(234)2x=10.8(235)(3.3x-4.7)÷2=25.7(236)11x-7x+22=62(237)8(0.3x+4.1)=47.2(238)5.7x-1.9=15.2(239)14x-23×0.7=2.1(240)8.5x+9.6x-2.4=88.1(241)9-x=5.1(242)58+81x=220(243)(9.4x+6.4)÷2=12.6(244)24+x=107(245)x-1.6=5.6(246)10x÷5=3(247)25x-3x+4.1=52.5(248)2x=0.8(249)12x-5x-1.3=25.3(250)3x+9×21=267(251)0.2x÷28=0.5(252)(13x+38)÷2=84(253)95÷x=19(254)84-3x=72(255)18.6-0.3x=8.7(256)77x-59=95(257)2(3x-37)=94(258)5.8x-5.3x=8(259)45x-13x-3.2=3.2(260)x÷14=0.7(261)x+4.1=10.7(262)69-x=51(263)0.4x+8.5x-2.8=15(264)x÷19=0.9(265)15.9-6x=3.9(266)2.9x-0.3×7=3.7(267)9.3x+4.7=23.3(268)16x=16(269)(16x+36)÷49=4(270)(14x+46)÷11=22(271)x+61=73(272)54+x=134(273)14.5-6x=4.9(274)2x+15=187(275)3.5-x=1.8(276)44+2x=116(277)16.9-23x=7.7(278)12x+14x-45=163(279)67x=13.4(280)95+x=178(281)19.9-3.5x=2.4(282)112÷x=7(283)13x-3×0.9=11.6(284)(3x+21)÷34=3(285)x÷29=6(286)5(0.4x+3)=21(287)2x+24×5=244(288)5.7÷x=0.3(289)13x+54x-4.1=29.4(290)133-46x=41(291)7x=140(292)2x÷10=16(293)x÷58=3(294)2.1+x=10.1(295)8.5x+8.6x+2.2=53.5(296)2(4.6x-6.3)=5.8(297)(6x-24)÷4=6(298)100-2x=86(299)19.7+27x=33.2(300)9(3x-29)=117(301)2.8x-1.5×8=2(302)68x+74x-4.4=151.8(303)(8.9x-6.4)÷2=41.3(304)2(0.2x-5)=9.2(305)8÷x=0.4(306)8.2-x=6.6(307)14.8-7x=5.7(308)12x+17x-49=212(309)58x-38x+2.9=32.9(310)3x-27×3=102(311)14x+5.8=17(312)4.9x-2.1x=5.6(313)8.8x-3.6=14(314)34+27x=196(315)17x+4x=105(316)11(x+2)=66(317)1.7x+3.9x-2.9=19.5(318)3x÷12=1.2(319)8x+25×8=336(320)17x+38x+1.1=56.1(321)2x+19×2=202(322)12x-2×4.6=2.8(323)19+3x=33.1(324)3.4x-3.7=13.3(325)3x-38=52(326)98+x=113(327)1.5x+0.2x-0.7=101.3(328)16x+10x-39=169(329)7x+8x+8=338(330)x÷13=6(331)5x-5×1.3=9(332)5x-44×0.3=4.8(333)12(1.8x-5.7)=18(334)96-x=61(335)(6.3x+5.8)÷2=28.1(336)13.6÷x=0.8(337)7x-3x+47=127(338)31x-10×0.8=10.6(339)2x-33=55(340)19x+24x-0.8=46.5(341)2.4x+2.2×4=18.4(342)3x=6(343)2(1.6x+3)=25.2(344)16x+52=148(345)11.2+1.4x=16.8(346)2(5.5x+8.5)=50(347)1.4x÷7=0.4(348)6.7x-1.3x=27(349)x÷63=2(350)12.6÷x=0.3(351)6x-4x-4.5=4.1(352)5x+8x=312(353)x-5.9=3(354)8.9x+1.3x+0.2=30.8(355)18x-14x-2.4=6.4(356)3x+7×2.2=23.5(357)189÷x=21(358)5x+8x+38=168(359)6.9x+3.4x+3.8=106.8(360)19x+27x-1.9=57.9(361)20x=160(362)5(1.1x-1.4)=42.5(363)2(6x-21)=114(364)15x÷6=2.5(365)1.2x-0.4x+1=16.2(366)6x+4.1=19.1(367)7.3x-5.5x-0.8=20.8(368)185÷x=37(369)44x=132(370)2(0.8x+6.4)=25.6(371)55x-20x-1.8=43.7(372)2x+41×4=198(373)47x=18.8(374)(2.8x+5.4)÷3=4.6(375)x-0.6=4.4(376)x+17=91(377)5x+39=174(378)1.3x-5.4=11.5(379)x+3=7(380)36x÷16=9(381)12.3-0.4x=10.7(382)0.8x=7.2(383)1.7x-5.2=1.6(384)4x+0.7×5=15.5(385)8x+9.3x+1.9=88.4(386)3x÷17=9(387)1.7x-1.2x=21(388)12x=84(389)9.2-24x=2(390)196-20x=116(391)x-2.5=5.5(392)0.2x+1.1=11.1(393)16.5-3x=6.6(394)13x-8x=50(395)8x+31=95(396)3x+1.8=15.3(397)6x-2x+29=89(398)7x+13x-22=98(399)x+93=117(400)(9x-31)÷7=11(401)x-0.2=2.5(402)86+x=133(403)6.9+x=8.5(404)17.5-1.9x=11.8(405)(1.1x-5.6)÷3=1.8(406)7(2.3x+1.1)=39.9(407)18.7+0.3x=19.3(408)5.8x+8.9x-1.5=160.2(409)19x-9x=100(410)6x-2x=72(411)6x=192(412)(16x+42)÷10=9(413)73-x=15(414)0.6x+1.3x=57(415)5x+4x-6=93(416)8.7x-7x-2.6=2.5(417)14(8x-5)=154(418)79x=15.8(419)5x=95(420)62x-29x-0.9=45.3(421)0.3x+1.3=5.8(422)4x-2.9x-2.1=13.3(423)x÷28=3(424)12x+5x+3.1=60.9(425)5x÷6=25(426)5(3x+14)=145(427)68x+31x+2.8=32.5(428)11-0.5x=2(429)11x+41x-3.1=116.5(430)4x÷6=3(431)x-3.6=5.4(432)5.7-0.2x=2.5(433)x+20=114(434)28x-45×2=50(435)67-2x=47(436)x+4.1=13.5(437)46x-27x+0.5=40.4(438)8x+7x+14=314(439)7x+9×0.4=16.2(440)x-1.6=4.9(441)2x=28(442)1.3x÷3=2.6(443)(5.1x-2.3)÷4=5.8(444)9x-4.4=14.5(445)82+29x=169(446)75+x=161(447)8x-3x-43=47(448)65x-28x-4.8=13.7(449)(12x-4)÷5=4(450)6+x=15.7(451)5x-3x+32=110(452)149-3x=86(453)2x=26(454)8(3x-11)=80(455)(2.8x-0.9)÷5=1.5(456)15x+5.5=23.5(457)5x+36×0.5=32.5(458)1.5x+4.3x+3.2=67(459)187-74x=39(460)x-7=87(461)76x-28x+1.2=58.8(462)23x-4×8=14(463)8.9x-1.8x-3.8=74.3(464)1.9x-0.5×15=9.6(465)16.4-33x=3.2(466)5.3-x=4.6(467)36x-21=51(468)4(x+7)=128(469)11.7+9x=16.2(470)9.7-x=4.8(471)0.3x=1.2(472)9.6x-3.8x+4.5=50.9(473)5.4x+5.5x+2.9=122.8(474)0.2x+3.1×6=27.2(475)(7x-35)÷7=22(476)13x-2x-27=17(477)1.6x÷88=0.2(478)3x÷15=5(479)3(7.8x-5.6)=30(480)40x÷20=0.4(481)63x-44=145(482)124-17x=73(483)(18x-34)÷2=100(484)8x-3×27=71(485)2.1x÷14=0.3(486)x÷42=3(487)x+51=83(488)x÷3=38(489)16x+2×4.4=13.6(490)3x÷10=0.9(491)33-x=29(492)30-x=16(493)(1.4x-2.3)÷3=2.5(494)9x-2x-7=119(495)x-15=28(496)30x÷75=0.2(497)7.2+x=8.9(498)x+5.6=10.3(499)3x+3×35=213(500)32x-1.3=8.3(501)x+6.3=6.8(502)2(1.5x+7.3)=32.6(503)3x+0.7×14=15.8(504)4x-7×14=58(505)3x-10×3=117(506)(9x+0.6)÷4=15.9(507)(7x+11)÷23=9(508)39x-3×4.6=1.8(509)38x-5.9=1.7(510)3.5+2.2x=12.3(511)54x+97x+1=91.6(512)3(3.7x-9.8)=48.3(513)4x+5x-3=159(514)2.2x-0.8x+3=59(515)x+6.2=14.2(516)7x-2.5x=18(517)6x+29×0.6=32.4(518)6.7x-2.4x+2.2=62.4(519)4.6x-0.3x+3.4=42.1(520)88x+67x+0.5=124.5(521)1.7x=5.1(522)11x+11×6=121(523)3x-44=16(524)126÷x=6(525)9x+10x=266(526)24x+3.9=13.5(527)10.3+1.7x=15.4(528)x÷13=1.4(529)14+x=23(530)x÷59=3(531)10x-2×0.8=10.4(532)0.5+x=9.6(533)180÷x=18(534)6x-2x+14=94(535)0.2x=13.2(536)2.8x-1.5x=5.2(537)2.5x+3.2x-4.6=18.2(538)6.1x+7.3x=160.8(539)11x+2×1=5.3(540)x+6.8=7.4參考答案(1)x=6.4(2)x=24(3)x=18(4)x=4(5)x=7(6)x=6(7)x=2(8)x=9(9)x=5(10)x=1.1(11)x=1.3(12)x=2(13)x=8(14)x=98(15)x=11(16)x=5(17)x=3(18)x=11.7(19)x=2(20)x=12(21)x=5(22)x=9.1(23)x=42(24)x=4(25)x=29(26)x=10(27)x=34(28)x=14(29)x=58(30)x=6(31)x=14(32)x=9(33)x=6.8(34)x=5(35)x=3(36)x=2.2(37)x=4(38)x=2.2(39)x=16(40)x=6(41)x=1.2(42)x=16(43)x=2(44)x=3(45)x=15(46)x=0.9(47)x=8(48)x=11(49)x=24(50)x=69(51)x=12(52)x=5(53)x=9(54)x=32(55)x=3(56)x=10(57)x=18(58)x=4.6(59)x=0.2(60)x=2(61)x=3.1(62)x=5(63)x=15(64)x=2(65)x=15(66)x=0.5(67)x=0.3(68)x=15(69)x=12(70)x=14(71)x=25(72)x=20(73)x=6(74)x=3(75)x=66(76)x=6(77)x=7.2(78)x=9.4(79)x=12(80)x=39(81)x=12(82)x=14(83)x=5(84)x=21(85)x=0.6(86)x=0.5(87)x=20(88)x=27(89)x=29(90)x=2(91)x=22(92)x=4(93)x=5.2(94)x=20(95)x=89(96)x=8(97)x=5(98)x=23(99)x=1.2(100)x=5.8(101)x=4.4(102)x=1.3(103)x=19(104)x=2(105)x=11(106)x=0.2(107)x=11(108)x=7.3(109)x=6(110)x=0.9(111)x=16(112)x=12(113)x=6(114)x=29(115)x=17(116)x=5(117)x=49(118)x=1.6(119)x=17(120)x=17(121)x=10(122)x=2(123)x=44(124)x=4(125)x=6(126)x=0.3(127)x=17(128)x=2.4(129)x=3.5(130)x=12(131)x=16(132)x=21(133)x=26(134)x=14(135)x=26(136)x=12(137)x=0.3(138)x=5(139)x=29(140)x=180(141)x=21(142)x=7(143)x=81(144)x=11(145)x=5(146)x=2(147)x=19.8(148)x=5(149)x=28(150)x=6(151)x=2.9(152)x=18(153)x=3(154)x=3(155)x=10(156)x=8(157)x=3.5(158)x=2(159)x=0.4(160)x=15(161)x=4(162)x=8(163)x=3(164)x=0.8(165)x=82(166)x=14(167)x=52(168)x=5(169)x=13(170)x=17.6(171)x=8(172)x=4(173)x=2(174)x=57(175)x=0.8(176)x=2(177)x=8(178)x=1.1(179)x=37(180)x=2(181)x=5.7(182)x=17(183)x=67(184)x=4(185)x=22(186)x=5(187)x=1.3(188)x=56(189)x=8(190)x=4(191)x=92(192)x=7(193)x=88(194)x=8(195)x=0.5(196)x=10(197)x=0.6(198)x=61(199)x=46(200)x=0.3(201)x=0.6(202)x=13.2(203)x=8(204)x=0.2(205)x=10(206)x=5.9(207)x=5(208)x=6(209)x=2(210)x=6(211)x=26(212)x=5(213)x=28(214)x=4.6(215)x=32(216)x=1.9(217)x=90(218)x=19(219)x=0.2(220)x=5(221)x=6.2(222)x=2(223)x=15(224)x=37(225)x=2(226)x=25(227)x=13(228)x=0.4(229)x=49(230)x=31(231)x=4(232)x=5.2(233)x=13(234)x=5.4(235)x=17(236)x=10(237)x=6(238)x=3(239)x=1.3(240)x=5(241)x=3.9(242)x=2(243)x=2(244)x=83(245)x=7.2(246)x=1.5(247)x=2.2(248)x=0.4(249)x=3.8(250)x=26(251)x=70(252)x=10(253)x=5(254)x=4(255)x=33(256)x=2(257)x=28(258)x=16(259)x=0.2(260)x=9.8(261)x=6.6(262)x=18(263)x=2(264)x=17.1(265)x=2(266)x=2(267)x=2(268)x=1(269)x=10(270)x=14(271)x=12(272)x=80(273)x=1.6(274)x=86(275)x=1.7(276)x=36(277)x=0.4(278)x=8(279)x=0.2(280)x=83(281)x=5(282)x=16(283)x=1.1(284)x=27(285)x=174(286)x=3(287)x=62(288)x=19(289)x=0.5(290)x=2(291)x=20(292)x=80(293)x=174(294)x=8(295)x=3(296)x=2(297)x=8(298)x=7(299)x=0.5(300)x=14(301)x=5(302)x=1.1(303)x=10(304)x=48(305)x=20(306)x=1.6(307)x=1.3(308)x=9(309)x=1.5(310)x=61(311)x=0.8(312)x=2(313)x=2(314)x=6(315)x=5(316)x=4(317)x=4(318)x=4.8(319)x=17(320)x=1(321)x=82(322)x=1(323)x=4.7(324)x=5(325)x=30(326)x=15(327)x=60(328)x=8(329)x=22(330)x=78(331)x=3.1(332)x=3.6(333)x=4(334)x=35(335)x=8(336)x=17(337)x=20(338)x=0.6(339)x=44(340)x=1.1(341)x=4(342)x=2(343)x=6(344)x=6(345)x=4(346)x=3(347)x=2(348)x=5(349)x=126(350)x=42(351)x=4.3(352)x=24(353)x=8.9(354)x=3(355)x=2.2(356)x=2.7(357)x=9(358)x=10(359)x=10(360)x=1.3(361)x=8(362)x=9(363)x=13(364)x=1(365)x=19(366)x=2.5(367)x=12(368)x=5(369)x=3(370)x=8(371)x=1.3(372)x=17(373)x=0.4(374)x=3(375)x=5(376)x=74(377)x=27(378)x=13(379)x=4(380)x=4(381)x=4(382)x=9(383)x=4(384)x=3(385)x=5(386)x=51(387)x=42(388)x=7(389)x=0.3(390)x=4(391)x=8(392)x=50(393)x=3.3(394)x=10(395)