五年級數(shù)學(方程)習題及答案匯編(1)3x÷18=11(2)(7.9x+4.1)÷2=45.5(3)5.6+5x=20.6(4)89-x=80(5)6.5+x=9.6(6)2(2.2x+5.5)=24.2(7)31x-58=128(8)5.7x+1.5x=93.6(9)9x=2.7(10)11x-9×1.5=1.9(11)98-x=78(12)10x+44×0.2=21.8(13)3.8x+2.3×8=29.8(14)6.7-2x=1.1(15)11.4÷x=0.3(16)8.8x+1.4x-3.3=47.7(17)18.4-2x=13.6(18)86-x=13(19)89x-16x-3.8=54.6(20)6.4x-2.3x+4.1=12.3(21)47x+92x-2.3=95(22)89x=178(23)14(0.2x-0.9)=49(24)11(2x+2)=154(25)13x+13×0.7=22.1(26)2x+19×7=201(27)13x+1=19.2(28)x-37=11(29)7x=11.9(30)5x-2x-31=65(31)2x÷9=10(32)0.3x-0.3×9=2.7(33)(6.2x-7.4)÷4=21.4(34)99x+18x+0.5=23.9(35)162-6x=24(36)(6x+12)÷2=87(37)3(0.6x-6.8)=46.2(38)1.1x+3.7=16.9(39)27x+3×1.4=23.1(40)4x+4×45=284(41)x-32=22(42)x-5=87(43)6x+2x-32=184(44)21x-6×0.8=9.9(45)0.5x-0.2x+1=21.4(46)2x=180(47)(0.9x+5)÷35=0.4(48)195-61x=73(49)3.6+5.2x=14(50)9÷x=0.9(51)8(1.5x-5.1)=43.2(52)x+34=41(53)x÷4=4.4(54)2x=160(55)11x+17x+2.3=156.3(56)3x-2.5x=2.5(57)19x-7x+19=139(58)12(0.2x-4.9)=13.2(59)6x+5.2=15.4(60)36x÷90=0.2(61)x÷6=26(62)7.8-x=6.2(63)6(10x-32)=168(64)67+x=83(65)(4.7x+7.4)÷11=5.8(66)76÷x=19(67)8.6-x=5.4(68)1x=2(69)3x÷8=2.4(70)18-4x=5.6(71)1.3x=19.5(72)9x-4.5x+1.9=19.9(73)10x+13x-30=62(74)x-2.7=4.4(75)131-2x=15(76)0.7x+0.8×12=20.1(77)0.2x=11(78)0.8x-5.3=1.9(79)2x-26×3=10(80)89x-72x-0.4=13.2(81)11(4x-14)=154(82)67x+81x+1.4=149.4(83)77-x=15(84)x÷22=0.9(85)2.9x+3.1x-1.7=52.3(86)x+67=103(87)72÷x=6(88)96-x=21(89)4x+3x+49=315(90)10.8-0.4x=2(91)8.8x+7.6x+0.3=65.9(92)x+5.4=14.3(93)39x÷26=6(94)2.3x+4.6=20.7(95)7x-3×36=53(96)3.2+x=13.1(97)13.1+0.3x=16.4(98)4x-2×1.1=11.8(99)22x÷44=3(100)20x-17=143(101)13x+1.5=9.3(102)9.4x-5.6x=26.6(103)14x-9x+22=42(104)3.1x-4.9=4.4(105)(2.9x-4)÷11=2.8(106)5.6x-4.2x+3=25.4(107)175÷x=5(108)4x+2x-5=103(109)18x+4x-14=96(110)2x+46=228(111)14-x=11(112)2.3x+3.3=12.5(113)6.8x-2.1x+2.3=49.3(114)0.5x=2(115)5.2x-1.1=14.5(116)(8.7x-7.5)÷6=8.9(117)181+13x=298(118)12.2+14x=20.6(119)x÷2=4.2(120)4(x+8)=152(121)4(0.8x+1)=13.6(122)9x+25x-0.3=9.9(123)57x+14x-0.8=70.2(124)79x-46x+1.2=7.8(125)2.6x+0.5×29=22.3(126)1.7x+1.1×4=21.4(127)12x-4x-25=95(128)18.4÷x=4.6(129)1.2x÷66=0.2(130)18.4-21x=7.9(131)13.2+7x=32.8(132)68x+85x-2=89.8(133)x+37=104(134)63x+19=145(135)14x-2×68=32(136)5(x+4)=90(137)18x-9x+30=129(138)2.4+3x=10.2(139)8.3x-1.9x-2.7=42.1(140)51x-13x+2.3=40.3(141)x÷5=17(142)4.4x-2.8x-4.7=17.7(143)x÷7=0.5(144)2x÷4=3.1(145)39x+2.2=17.8(146)8x+6x-14=182(147)31x+4.3=22.9(148)0.4x-1.6×3=13.6(149)14x+2x=112(150)47+100x=247(151)51x-35x-4.6=17.8(152)0.3x=11.1(153)12x+8x=100(154)10x+19x=145(155)7x-1.5x=55(156)x+8.3=12.6(157)17x=119(158)2x-5.6=11.4(159)(0.2x+1)÷4=0.8(160)64x+68x-3.6=22.8(161)x+33=99(162)5x-3x=78(163)45x-20x+4.6=17.1(164)22÷x=2(165)9.5-x=4.3(166)0.3x+3.2=20.6(167)(12x-25)÷7=29(168)3(10x-32)=114(169)0.4x+3.9x-0.5=51.1(170)8.4+2.9x=17.1(171)9(2x+3)=189(172)(9x+36)÷20=9(173)2x=98(174)3.9+1.8x=11.1(175)16x+10x=156(176)(1.9x-3.3)÷4=2.5(177)(15x-43)÷4=8(178)7.8x-5.4x=16.8(179)168÷x=7(180)(10x-34)÷3=12(181)5x-1.2=16.3(182)0.3+x=2.8(183)4x+4.5=10.1(184)10x-4x+36=132(185)6.9x+5.1x+2.3=146.3(186)13x=7.8(187)x÷6=3(188)12x+57x+1.7=43.1(189)1.9x-5.3=9.9(190)x÷20=0.3(191)7.5x+1.9x-0.2=18.6(192)3x+15=93(193)10x-4x=72(194)4x+15×1.1=23.3(195)10x-3x+31=94(196)0.4x=1.6(197)153+16x=217(198)1.2x+1.5x=116.1(199)3.2x+1x-0.5=7.9(200)4.6x-0.9x=59.2(201)19.3-63x=6.7(202)9.2x+3.3x=87.5(203)x÷20=7(204)1.1x+0.4x=103.5(205)4(3.2x-2.1)=17.2(206)87x÷29=6(207)x-9=18(208)4x-2x-11=33(209)8x+2x+42=192(210)9.4x+4.4x=41.4(211)82+59x=200(212)(3x+42)÷3=26(213)82-2x=50(214)15x-7x=96(215)7.3x+6.1x=53.6(216)32x-24=136(217)69x-1.7=12.1(218)9x÷18=6(219)1x-2.3×6=3.2(220)4x=188(221)15x-10x=35(222)33x-5×1.3=13.3(223)13x-9x+38=86(224)(15x-26)÷47=2(225)6x+3x+11=47(226)3(10x-32)=174(227)2.8x+2.5=19.3(228)x÷6=14(229)23-x=17(230)19-1.5x=7(231)0.8x+0.2x-1=77(232)4x+13x=136(233)3.8x+2.6x+3.7=80.5(234)1.1x-5.6=2.1(235)x-4=2.3(236)9.6x-9.2x+4.1=5.7(237)11+x=40(238)3.6x÷20=0.9(239)9.6-x=5(240)x+8.7=17.2(241)18x-11x-5=44(242)(8x+24)÷18=8(243)0.5x+4.1=10.1(244)0.3x-2.5=4.1(245)5x-16=174(246)7x+6.3x-2=144.3(247)2.9+0.7x=5.7(248)2(0.4x+8.5)=39.4(249)7x÷14=5(250)6.3x-1.6x=47(251)124+75x=274(252)99x÷22=0.9(253)x+4.2=13.6(254)41x+7x+0.6=24.6(255)1.8x-0.3x=39(256)11x-6x-8=27(257)x+6.3=11.3(258)94+x=193(259)14x-3×1.3=12.9(260)15+x=98(261)52x+97x+1.2=120.4(262)71+20x=231(263)7.9x-7.6x+4.4=7.4(264)18x+9×0.6=19.8(265)3.7x+0.6×24=25.5(266)9x÷36=0.5(267)11x+11=44(268)8x=136(269)2x÷36=0.3(270)26x-12x-1.4=23.8(271)3x-35=115(272)194-9x=149(273)(4.3x-5.5)÷3=3.9(274)(7x-8)÷6=29(275)2.9+2x=15.1(276)7x-3x-22=74(277)11.6+5.7x=23(278)41x+40x-3=167.1(279)24x=72(280)0.5x+3.7x+3.5=95.9(281)4x+9x=182(282)1.3x+3.5×3=14.4(283)x+39=81(284)0.4x+2.2×9=29(285)0.6x+0.4×47=35(286)x-39=60(287)23x-11=58(288)3.7x+0.6x+4.5=21.7(289)8x-6.7x=15.6(290)11.2+12x=30.4(291)30x÷10=0.9(292)x-57=28(293)x-15=45(294)x+44=67(295)19x+10x=87(296)0.2x+3.3=22.9(297)4(3x+21)=144(298)0.2x=8.6(299)7x-3x=88(300)14x+93×2=354(301)4x+3×28=264(302)x+4.7=13.7(303)5.6x-1.4=15.4(304)44x-4x+0.3=20.3(305)2x+15x+45=130(306)20x-3×2.9=3.3(307)(7x+41)÷24=9(308)17x+18x=70(309)18-2x=13.6(310)2(2.2x+9.4)=40.8(311)(10x-20)÷40=4(312)86-11x=31(313)73x+85x+4.6=99.4(314)69x+27x-3.5=63.7(315)117+4x=233(316)10.4÷x=1.3(317)9x+10x+44=272(318)43x+41x-2.4=190.8(319)3.6x+8x-2.7=124.9(320)5.7x-1.9x-3=61.6(321)x+15=26(322)2(14x-41)=86(323)2(3.6x+3.7)=29(324)2.1x+3.1x+0.7=68.3(325)0.5x+1.3x=127.8(326)4.4x-3.9x=4(327)108÷x=36(328)49x-39x-2.7=2.3(329)1.6x-0.3x-3.6=39.3(330)9.6x÷4=4.8(331)(12x-32)÷26=2(332)x-3.9=2.6(333)19x-8x=44(334)79x+87x+3.3=119.5(335)6x+3.6=16.2(336)9÷x=0.5(337)0.6x=19.8(338)95x-16x+4.3=51.7(339)10x-22×2=66(340)6.4÷x=3.2(341)18-29x=3.5(342)x+5.2=7.6(343)2(2.6x+7.2)=40.4(344)19x-12x=42(345)3x-4.8=6.6(346)39+x=89(347)0.9x÷6=3(348)2x÷10=0.8(349)(9x-48)÷23=3(350)14x-11x-1.2=4.2(351)3.3x+3.9x=165.6(352)8.9-x=4.4(353)9.8+x=10.1(354)2x÷12=1(355)11-24x=1.4(356)0.2x+5.9=14.1(357)18x=12.6(358)8x-5x=51(359)5x-2x-14=97(360)2x+5x+9=233(361)18x-9x=27(362)5x+5.8=20.8(363)x-3.5=1(364)7x-2x+31=166(365)9x-5x+46=102(366)8x+5x-22=251(367)8(1.7x+2)=43.2(368)x+19=111(369)3x+9x+24=204(370)6.4x-2.5x-1.2=49.5(371)5x+12×0.7=22.4(372)9.7-x=7.3(373)3.5x÷5=2.1(374)1.4+x=9.2(375)2.6x-0.2×4=12.2(376)24x÷48=0.3(377)x÷4=33(378)38x-3.9=15.1(379)4(x+15)=112(380)17÷x=1.7(381)49x+24=122(382)14x-10×4=114(383)9.6x-9.4x+1.2=2.2(384)7x-2.3=7.5(385)x-5.8=2.1(386)1.1x=2.2(387)(3.2x-4.8)÷4=0.4(388)9.2x+3.3x=50(389)3x=14.1(390)7x+33=47(391)4.4x+1.7x+4.7=120.6(392)22x+65x-0.9=42.6(393)10x-29=91(394)3x=2.4(395)x÷8=0.3(396)37x-12x+3.7=8.7(397)(2.6x-8.4)÷20=1.4(398)6.5-0.2x=5.3(399)(19x-39)÷25=3(400)6x÷3=14(401)(1.4x+3.5)÷7=1.9(402)x+1.1=7.4(403)12x+3=18.6(404)x÷17=4(405)66+84x=234(406)7(0.6x-8.9)=46.9(407)22x+60×3=334(408)1.1x-1.3×4=14.6(409)77x-52x-4=6(410)3(0.4x+0.6)=6.6(411)8.5x-0.5x-2.8=53.2(412)2.6+x=9.2(413)3(11x+32)=195(414)47x-31x-1.7=22.3(415)x÷56=0.3(416)x+81=143(417)x-7.7=1.9(418)44x=13.2(419)136-3x=52(420)3.1x-0.7×14=2.6(421)11x+4×0.9=13.5(422)4x+22×0.9=38.2(423)2x+3x+2=77(424)x-0.9=6.1(425)5(x+22)=140(426)12.1-0.4x=11.3(427)15.4-3x=1(428)0.3x+0.7×21=20.1(429)4x+35×0.2=25.8(430)4+x=6.3(431)13.4-0.7x=12(432)31x-25=130(433)8.3+0.2x=28.3(434)41x-30×0.3=3.3(435)7.6x-4.3x-4.1=35.5(436)0.4x÷2=3.8(437)x-6.8=1.2(438)15-1.4x=2.4(439)8.4x+9.9x+3.2=94.7(440)10x+5x=60(441)2x+75×2=262(442)162÷x=3(443)3x+11×14=202(444)7x-5.2x+2.7=20.7(445)2(3x-37)=70(446)19.2-1.3x=12.7(447)148+9x=229(448)5x+3x-33=95(449)(18x+2)÷38=1(450)19x-8x+3=43.7(451)x÷87=2(452)167-7x=48(453)0.8x-4.6=2.6(454)4x-23×5=69(455)x-12=17(456)7(3x-4)=161(457)8.6x-6.9x-2.9=15.8(458)x-2.7=5.9(459)6(0.8x-4.8)=28.8(460)8.6+x=17.6(461)x÷8=2.3(462)34+x=105(463)84-x=80(464)9x-2x+5=131(465)(3.3x-3.5)÷10=4.6(466)9.2-x=3.5(467)31x-10×0.2=13.5(468)20x+25=65(469)98x=19.6(470)0.9x-0.2×18=9(471)(6.5x+9)÷10=8.7(472)2(4x-23)=74(473)11x-2×28=32(474)3x+6x-27=189(475)2(0.2x+3.5)=22.6(476)x÷42=0.3(477)4.5÷x=0.9(478)11.3-0.2x=9.1(479)1.9x-0.4×10=1.7(480)15.7-0.8x=7.7(481)6x+84×2=234(482)(2.5x+9.4)÷2=9.7(483)4.6x+1.1x+4.6=84.4(484)x-22=44(485)80÷x=5(486)12x+14x-18=320(487)(8.1x+5.1)÷7=12.3(488)8x-28×0.2=14.4(489)86+x=113(490)15+2x=18.2(491)x÷98=2(492)4x-1.2=6.8(493)30x-2=16(494)18x-14x-32=12(495)36x+19=199(496)4.9x-1x-2.1=13.5(497)18.6+2x=23.6(498)9.9÷x=0.3(499)17x-15x-3.6=7.8(500)6x-12=60(501)12.7+2x=25.7(502)32x+27=187(503)21+x=53(504)3x+5×12=222(505)5x-2.2=8.8(506)71x-51x+1.7=21.7(507)(19x+16)÷3=56(508)126÷x=6(509)7.8-x=7.3(510)(6.1x-2.4)÷20=1.1(511)x+9.6=18.9(512)2.6x-0.5×13=1.3(513)2(2.6x-9.7)=11.8(514)126-2x=84(515)8.9x+1.2x-2.1=78.7(516)36+x=81(517)81x+45x+1.7=77.3(518)16+0.3x=23.2(519)19x+8x+28=217(520)3(13x+25)=153(521)(x+33)÷20=3(522)5x+1.4=11.4(523)3.5+0.3x=13.4(524)4x=16.8(525)11x-3×19=130(526)14(1.4x-5.8)=36.4(527)0.6x-2.8=2.6(528)9(16x-19)=117(529)73x-71x+1.3=3.1(530)8.1+x=14.2(531)1x÷16=0.5(532)(9x+48)÷3=91(533)12x-6x-22=62(534)15x=60(535)88-x=27(536)(6.4x+5)÷15=4.6(537)31x÷93=0.2(538)64x÷6=32(539)3x-3×34=96(540)6.1-x=2.7參考答案(1)x=66(2)x=11(3)x=3(4)x=9(5)x=3.1(6)x=3(7)x=6(8)x=13(9)x=0.3(10)x=1.4(11)x=20(12)x=1.3(13)x=3(14)x=2.8(15)x=38(16)x=5(17)x=2.4(18)x=73(19)x=0.8(20)x=2(21)x=0.7(22)x=2(23)x=22(24)x=6(25)x=1(26)x=34(27)x=1.4(28)x=48(29)x=1.7(30)x=32(31)x=45(32)x=18(33)x=15(34)x=0.2(35)x=23(36)x=27(37)x=37(38)x=12(39)x=0.7(40)x=26(41)x=54(42)x=92(43)x=27(44)x=0.7(45)x=68(46)x=90(47)x=10(48)x=2(49)x=2(50)x=10(51)x=7(52)x=7(53)x=17.6(54)x=80(55)x=5.5(56)x=5(57)x=10(58)x=30(59)x=1.7(60)x=0.5(61)x=156(62)x=1.6(63)x=6(64)x=16(65)x=12(66)x=4(67)x=3.2(68)x=2(69)x=6.4(70)x=3.1(71)x=15(72)x=4(73)x=4(74)x=7.1(75)x=58(76)x=15(77)x=55(78)x=9(79)x=44(80)x=0.8(81)x=7(82)x=1(83)x=62(84)x=19.8(85)x=9(86)x=36(87)x=12(88)x=75(89)x=38(90)x=22(91)x=4(92)x=8.9(93)x=4(94)x=7(95)x=23(96)x=9.9(97)x=11(98)x=3.5(99)x=6(100)x=8(101)x=0.6(102)x=7(103)x=4(104)x=3(105)x=12(106)x=16(107)x=35(108)x=18(109)x=5(110)x=91(111)x=3(112)x=4(113)x=10(114)x=4(115)x=3(116)x=7(117)x=9(118)x=0.6(119)x=8.4(120)x=30(121)x=3(122)x=0.3(123)x=1(124)x=0.2(125)x=3(126)x=10(127)x=15(128)x=4(129)x=11(130)x=0.5(131)x=2.8(132)x=0.6(133)x=67(134)x=2(135)x=12(136)x=14(137)x=11(138)x=2.6(139)x=7(140)x=1(141)x=85(142)x=14(143)x=3.5(144)x=6.2(145)x=0.4(146)x=14(147)x=0.6(148)x=46(149)x=7(150)x=2(151)x=1.4(152)x=37(153)x=5(154)x=5(155)x=10(156)x=4.3(157)x=7(158)x=8.5(159)x=11(160)x=0.2(161)x=66(162)x=39(163)x=0.5(164)x=11(165)x=5.2(166)x=58(167)x=19(168)x=7(169)x=12(170)x=3(171)x=9(172)x=16(173)x=49(174)x=4(175)x=6(176)x=7(177)x=5(178)x=7(179)x=24(180)x=7(181)x=3.5(182)x=2.5(183)x=1.4(184)x=16(185)x=12(186)x=0.6(187)x=18(188)x=0.6(189)x=8(190)x=6(191)x=2(192)x=26(193)x=12(194)x=1.7(195)x=9(196)x=4(197)x=4(198)x=43(199)x=2(200)x=16(201)x=0.2(202)x=7(203)x=140(204)x=69(205)x=2(206)x=2(207)x=27(208)x=22(209)x=15(210)x=3(211)x=2(212)x=12(213)x=16(214)x=12(215)x=4(216)x=5(217)x=0.2(218)x=12(219)x=17(220)x=47(221)x=7(222)x=0.6(223)x=12(224)x=8(225)x=4(226)x=9(227)x=6(228)x=84(229)x=6(230)x=8(231)x=78(232)x=8(233)x=12(234)x=7(235)x=6.3(236)x=4(237)x=29(238)x=5(239)x=4.6(240)x=8.5(241)x=7(242)x=15(243)x=12(244)x=22(245)x=38(246)x=11(247)x=4(248)x=28(249)x=10(250)x=10(251)x=2(252)x=0.2(253)x=9.4(254)x=0.5(255)x=26(256)x=7(257)x=5(258)x=99(259)x=1.2(260)x=83(261)x=0.8(262)x=8(263)x=10(264)x=0.8(265)x=3(266)x=2(267)x=3(268)x=17(269)x=5.4(270)x=1.8(271)x=50(272)x=5(273)x=4(274)x=26(275)x=6.1(276)x=24(277)x=2(278)x=2.1(279)x=3(280)x=22(281)x=14(282)x=3(283)x=42(284)x=23(285)x=27(286)x=99(287)x=3(288)x=4(289)x=12(290)x=1.6(291)x=0.3(292)x=85(293)x=60(294)x=23(295)x=3(296)x=98(297)x=5(298)x=43(299)x=22(300)x=12(301)x=45(302)x=9(303)x=3(304)x=0.5(305)x=5(306)x=0.6(307)x=25(308)x=2(309)x=2.2(310)x=5(311)x=18(312)x=5(313)x=0.6(314)x=0.7(315)x=29(316)x=8(317)x=12(318)x=2.3(319)x=11(320)x=17(321)x=11(322)x=6(323)x=3(324)x=13(325)x=71(326)x=8(327)x=3(328)x=0.5(329)x=33(330)x=2(331)x=7(332)x=6.5(333)x=4(334)x=0.7(335)x=2.1(336)x=18(337)x=33(338)x=0.6(339)x=11(340)x=2(341)x=0.5(342)x=2.4(343)x=5(344)x=6(345)x=3.8(346)x=50(347)x=20(348)x=4(349)x=13(350)x=1.8(351)x=23(352)x=4.5(353)x=0.3(354)x=6(355)x=0.4(356)x=41(357)x=0.7(358)x=17(359)x=37(360)x=32(361)x=3(362)x=3(363)x=4.5(364)x=27(365)x=14(366)x=21(367)x=2(368)x=92(369)x=15(370)x=13(371)x=2.8(372)x=2.4(373)x=3(374)x=7.8(375)x=5(376)x=0.6(377)x=132(378)x=0.5(379)x=13(380)x=10(381)x=2(382)x=11(383)x=5(384)x=1.4(385)x=7.9(386)x=2(387)x=2(388)x=4(389)x=4.7(390)x=2(391)x=19(392)x=0.5(393)x=12(394)