五年級數(shù)學(方程)習題及答案匯編

五年級數(shù)學(方程)習題及答案匯編(1)2.3-x=1.6(2)7x-2×17=120(3)7x+11x+31=301(4)5x-47×2=46(5)19.7+0.6x=25.1(6)(5x-49)÷13=7(7)9.8x+7.8x-2=103.6(8)118+9x=190(9)3(7x-44)=120(10)(9x-3)÷20=3(11)0.2x+3.2=21.6(12)71+15x=251(13)133+10x=333(14)7(0.9x-8)=25.9(15)4.4-x=1.8(16)10x-4x-6=30(17)x÷23=0.5(18)(3.4x-1.2)÷4=11.6(19)3x-3×5=156(20)8x+49=89(21)68x-60x-2.4=2.4(22)14.7+5x=21.2(23)2.9+4x=12.1(24)12x+2×41=202(25)138÷x=23(26)3x+16x+34=262(27)0.3x-4.3=8(28)13x÷39=0.4(29)7.1x-6x-4.6=7.5(30)x+9.5=9.9(31)6.1x-1.7x-2.7=41.3(32)9.1+x=14.7(33)17x=170(34)7(0.5x-7.7)=19.6(35)10x+35=95(36)3x+4.1x=127.8(37)1x-2.4×2=3.2(38)3x+57=84(39)84x-77x+2.2=4.3(40)x+1.5=4.8(41)9.7x-0.6x=45.5(42)16.1+51x=26.3(43)53x-19x-3.2=17.2(44)50-x=39(45)170+2x=284(46)71x-11x+1.8=85.8(47)10x+15x+6=81(48)x-14=85(49)16x-11x-10=20(50)0.3x÷15=0.7(51)12(0.6x+1.4)=31.2(52)(11x-24)÷6=29(53)7.4x+5x+4.2=91(54)1.2x+5.6=23.6(55)7x=168(56)4x-2×24=112(57)6x-19=71(58)15x=3(59)132+13x=275(60)14x-3x-11=55(61)84-x=20(62)31x=18.6(63)2.7x+2.2x=88.2(64)169-3x=19(65)92+6x=272(66)3.1x+0.8×22=23.8(67)198+34x=334(68)1.5x-0.4x=69.3(69)17x+30x+2.5=134.1(70)x-6=47(71)3x-11=139(72)0.3x=10.8(73)4.7x+3.9×5=38.3(74)2x-48=86(75)(8.1x-9.8)÷19=4.6(76)0.3x÷10=0.9(77)2x÷20=4(78)4x=104(79)x-13=63(80)55x-18x+2.6=21.1(81)x-46=25(82)9.2x-4.9x-2.9=35.8(83)15.6-1x=5.6(84)x÷17=0.5(85)3x+5.1=18.6(86)x-0.7=1.7(87)8x-4x-16=64(88)8(3x+4)=152(89)(6.4x-5.6)÷6=7.6(90)(4.1x-2.1)÷32=1.6(91)(6x-39)÷3=25(92)3(2x-38)=126(93)10.5÷x=0.5(94)5.5x-4.7x+1=5.8(95)0.5x-0.7×17=1.6(96)71+x=128(97)5.8x-5.2x+2.4=7.2(98)4(0.3x-3.3)=37.2(99)7÷x=1.4(100)0.8x÷3=2.4(101)15x÷6=1(102)x+3.1=4(103)19.8÷x=1.1(104)x÷21=8(105)4x+13x=170(106)5.7-x=2.7(107)7x+4.7=17.3(108)8x-2x+25=79(109)x÷3=4(110)(3x+42)÷2=60(111)123-46x=31(112)2(9x+18)=108(113)3x-6×22=63(114)0.7x+0.6×23=25.7(115)58x+76x-2.1=145.3(116)5(4.4x-6.3)=12.5(117)1.5x+2.9=8.9(118)15x-3x-26=130(119)61x+6x-1.6=25.2(120)24+x=54(121)17.4-2x=2.2(122)15x+8×2.5=30.5(123)2.4+x=4.2(124)121-31x=59(125)6.9x+1.2x+0.3=105.6(126)5.5x+4.8x+4.1=179.2(127)19.8+1.6x=37.4(128)17x+2x=133(129)2.7+x=8.6(130)19.5÷x=1.5(131)7x+10×1.5=22(132)x÷5=3.6(133)9x-2x=28(134)(0.9x+2.1)÷22=0.3(135)16x-7×0.9=8.1(136)x-1.3=7.1(137)2x-3×22=132(138)16x-8x=88(139)2x=152(140)40x=120(141)3(9x-7)=168(142)1.4x-0.9x+1.8=13.3(143)(4.3x+2)÷4=17.7(144)14-2.8x=8.4(145)4x+26x-3.4=92.6(146)4.3x+1.1x-1.4=63.4(147)(7.8x+0.8)÷22=1.1(148)13.2÷x=0.4(149)x+1.1=2.3(150)7.1+x=16.9(151)88x+15x+2.1=43.3(152)2(x+25)=106(153)35+x=43(154)8x÷20=4(155)17x-2x=105(156)1.8x-0.6x-4.9=50.3(157)12x÷2=48(158)4x-16×0.9=4.4(159)2(0.8x+9.2)=45.6(160)6.2x+8.6x=148(161)38x+47x-2.1=40.4(162)7.1+2x=19.7(163)x÷4=19(164)32÷x=16(165)148÷x=2(166)13.3+4x=20.1(167)(6x-42)÷6=13(168)4x=8.4(169)2.6x+1.8x-3.6=102(170)0.5x÷15=0.2(171)x+43=58(172)9.2-x=4.1(173)19-0.2x=17.8(174)13x+8x-28=98(175)11x+10x+1.9=161.5(176)9x+6×5=210(177)5x+6x+15=37(178)8x-24=64(179)9x÷12=1.5(180)15.8-0.7x=7.4(181)8.1x-5.9x=24.2(182)60x+54x+4.7=175.7(183)52+x=137(184)4.4x-5.3=3.5(185)18x-14x+14=54(186)96x-17x-0.6=78.4(187)13+x=96(188)6x÷63=2(189)0.2x+1.5=1.9(190)(3x-38)÷2=11(191)26x-8x-3=2.4(192)8x+9x+44=129(193)18x+7x+4.7=139.7(194)x÷6=6(195)x-6.1=1.2(196)x-50=17(197)28x+61x-1.3=96.6(198)11(2x-42)=176(199)1.9x-1×12=7(200)72x-2.2=12.2(201)3(0.6x+3.8)=49.2(202)0.5x-1.4=18.1(203)(6.9x-9.3)÷3=22.2(204)(15x-15)÷30=4(205)9x-4x=60(206)1.6x-1.1x+0.6=6.6(207)2.7x+4x=53.6(208)x+21=89(209)3x+3.7=7.9(210)4.1x=16.4(211)9.8x-0.8x+0.5=81.5(212)2x÷4=4(213)2.5x+3.1x+1=85(214)10.9-21x=6.7(215)x÷2=0.4(216)8.4x-8.1x=3.3(217)2.4x-0.5x+1.5=18.6(218)3(6x+2)=132(219)2x+28=36(220)1.4x+3.5x+0.4=132.7(221)2x+39=193(222)11.4+0.8x=23.4(223)0.5x+3.2×2=12.9(224)176+4x=292(225)1.1x=9.9(226)4(0.7x-6.2)=36.8(227)x÷2=0.8(228)1.5x+4.1=16.1(229)x+96=105(230)x÷76=0.2(231)0.3+x=3.7(232)x÷2=1(233)5x+31x+4.3=29.5(234)6x÷3=30(235)47x+3×2.7=17.5(236)10x+2=7(237)5.9-2x=1.9(238)130÷x=13(239)15x+5x=80(240)6.9-x=6.3(241)4x+5=11.4(242)168-5x=83(243)(15x+36)÷12=13(244)2x÷8=2.1(245)16x÷4=2.8(246)14.3+21x=33.2(247)x÷3=1.5(248)49x-2.2=12.5(249)0.3x+1×4=16.3(250)93x-65x+3.8=15(251)5(2x+4)=50(252)3x+7×2=18.8(253)17x-3.1=12.2(254)28-x=26(255)14x-2=2.2(256)1x-4.9=3.1(257)50x÷25=0.4(258)15.5-0.9x=9.2(259)62-x=12(260)8.1-26x=2.9(261)2x-3×1=6.8(262)3x+10x=156(263)0.4x÷24=0.8(264)6x-1.9=9.5(265)3.4x-2x=15.4(266)6x=19.8(267)7÷x=0.5(268)1.5x+1.7x-3=99.4(269)88x-2x-3.1=91.5(270)24x-31=113(271)40x+3.9=11.9(272)2(2x+27)=122(273)12x÷90=0.2(274)8.5+x=13.9(275)x÷11=5(276)14x+6x=260(277)43x=129(278)1.3x+1.4x-1.4=74.2(279)72x+14x-1.8=49.8(280)(5.9x-7.4)÷3=23.1(281)54+x=69(282)3x+18x-30=201(283)2x+9x-33=187(284)(6.3x-0.3)÷6=13.6(285)x+71=101(286)29x+7x-0.4=89.6(287)0.4x-1.5×3=7.9(288)25x+52x+2.5=87.2(289)2x+13x+12=57(290)8x-1.8=16.6(291)177-12x=21(292)199-3x=124(293)40x-35x+0.2=2.2(294)12x+16x-2=166(295)5x-4.3=15.7(296)(8x+9.2)÷2=32.6(297)37x+23×0.3=14.3(298)2(6.2x+4.9)=47(299)x-18=45(300)147÷x=21(301)19x-15x=16(302)2(6x-25)=106(303)5x+3x-47=201(304)12.3+0.2x=18.5(305)1.8x+5.9x-0.8=107(306)1x+0.9x+3.9=165.4(307)0.3x-1.3×2=6.7(308)3x=14.4(309)4.1x+4.4×2=25.2(310)0.7x-1.8×3=7.9(311)5x-2×0.9=16.7(312)12(3.1x-4.6)=19.2(313)16x+7x=69(314)8x+18x=234(315)13x-9x=28(316)98-x=83(317)2(0.4x+2.7)=31(318)9x+83×2=238(319)(4x+46)÷2=37(320)2.4x÷8=1.5(321)1.5x=7.5(322)3(14x-16)=36(323)19.4-18x=14(324)5(0.6x+6.5)=44.5(325)8.4+0.8x=28.4(326)8x=11.2(327)8x+1=13.8(328)0.5x+4=23(329)8.6+x=13.5(330)4.2x+1.2x=10.8(331)35÷x=7(332)39x-37x+3.1=7.9(333)16(x+4)=112(334)9.3+1.1x=14.8(335)2(0.3x+8.3)=41.8(336)62x-34x-4.7=9.3(337)2x-2×36=84(338)0.6x÷18=0.5(339)1.1x+5.4=25.2(340)11.1÷x=3.7(341)x+9.4=10.1(342)0.7x+1.4x+2.8=133(343)73+x=168(344)(7x+44)÷3=59(345)19x-4x=150(346)20x-25×2=110(347)108÷x=9(348)4x-16×0.5=4.8(349)0.9x-4×2=1(350)0.5x-2.3×2=10.9(351)2x+11x=221(352)8.3+x=8.9(353)14.7-13x=6.9(354)2x-4.2=15.4(355)29x-3x-0.3=49.1(356)1.9x=17.1(357)x÷3=22(358)1.9x=15.2(359)0.3x=12(360)(7.5x+4)÷2=9.5(361)2x+3×1.5=8.1(362)17.4-2x=5.6(363)5x+2x-22=237(364)7x-4x-27=12(365)4x-2x=52(366)24x÷36=0.4(367)x+5.7=8.6(368)7x+20×4=241(369)36x=72(370)17x=187(371)9.2-x=8.2(372)2x+5.2=10.8(373)3x+3×31=285(374)(7.5x+9.3)÷18=2.6(375)6.2x-1.2=11.2(376)3x+26×6=303(377)(16x+32)÷8=20(378)0.6x+3.3×5=22.5(379)x+20=80(380)13x-5.1=14.4(381)12.4-1.5x=9.4(382)8x+4x+46=262(383)18x÷66=3(384)174-22x=108(385)x-7.1=2.5(386)153÷x=3(387)4x+46=58(388)3x-32=43(389)22x+8×2.1=36.6(390)95x+31x-4.3=96.5(391)1.9x+4×4=31.2(392)91-x=28(393)12.3+0.2x=18.7(394)x+15=27(395)(3x+46)÷2=53(396)4.4-x=3.4(397)(12x+40)÷10=28(398)3.1x-1.4x+1.9=41(399)x-7=25(400)x+7.6=12.6(401)80+x=104(402)10x=30(403)15x-30×0.3=4.5(404)4.3x+6.4x=21.4(405)x+2.7=11(406)13x+8x=252(407)x+56=102(408)9x=7.2(409)6x+7×0.9=11.1(410)9x-18×0.2=16.2(411)0.7x-1.9=8.6(412)9x+7x+32=272(413)5(2x-33)=85(414)1.1x+1.9=11.8(415)1.2x-0.3x-0.9=16.2(416)7.1+48x=26.3(417)8.6x-7.7x+1.6=3.4(418)9.9-x=1.7(419)14x-11x+33=54(420)55x-26x-3.8=28.1(421)4x-24=88(422)x+1.3=3.8(423)6(0.3x+4.8)=48.6(424)(7x+49)÷3=49(425)50-x=30(426)16.6-6x=11.8(427)15.8+2x=23.8(428)x-0.4=4.8(429)4.1+0.9x=14.9(430)0.9x=17.1(431)2.5x-5.2=7.3(432)(5x-5)÷3=45(433)1.6x÷32=0.5(434)x-49=44(435)4(x+20)=104(436)x-3.1=4(437)9x-2x-13=71(438)5x+1x=78(439)24x-17x+4.2=31.5(440)4x-28×0.5=5.6(441)13(5.2x-8.9)=19.5(442)2+0.2x=20.2(443)(9x+36)÷45=3(444)x÷47=4(445)4(2.8x-7.6)=14.4(446)2.6x+0.4x+2.1=92.1(447)6.4+x=7.5(448)5x+43=108(449)156÷x=12(450)6.1x+8x+2=114.8(451)4.2-x=2.9(452)(4.3x-9.7)÷2=14.5(453)x-1.1=3.6(454)x-3.6=2.9(455)2x-0.6x+3.4=62.2(456)196+5x=346(457)94x-58x-1.8=5.4(458)52x=10.4(459)3.5x-3.3x=5.4(460)5x+9x-5=233(461)32x+49x+0.7=89.8(462)14.5-3x=11.2(463)4x-47=81(464)90-19x=33(465)7.3x-3.9x=34(466)6x+8x-20=120(467)7(8x-44)=140(468)5x-54=26(469)18x-2x+2=162(470)16x+4x-39=161(471)0.2x+5=10(472)2x=12.8(473)x-64=16(474)(3.3x+6.6)÷21=2.2(475)28x÷16=7(476)4.2x+5.5x=29.1(477)x+25=59(478)3x+26=149(479)2(x+32)=154(480)13x-2x+28=72(481)1.8x+2.8x-1.1=155.3(482)6x-4x-4=36(483)3x+7×4=148(484)6x-4x-34=20(485)7.8-0.7x=5(486)(9.8x+8.1)÷5=7.5(487)5.5x-2.2x-1=58.4(488)3x-2×48=42(489)2.3x-1.7x-3.5=14.5(490)0.6x÷81=0.2(491)9.2+12x=11.6(492)5(22x-43)=115(493)70-x=16(494)8x+42x+0.4=105.4(495)x÷30=4(496)(13x-46)÷3=67(497)9.8x-0.2x=48(498)74x+4.3=19.1(499)5x+53=98(500)1x+3.8x-4.2=67.8(501)7.7x+8x=141.3(502)64x÷48=4(503)5(2.2x-3.7)=25.5(504)(1.2x-6)÷2=7.8(505)2.5x-1.6x-3.1=25.7(506)48-x=11(507)9x-7x=10(508)x÷4=10(509)5x+0.7x-3.8=24.7(510)1.9x-2.7×2=6(511)34x-8x+0.6=29.2(512)9x+86x-4.3=14.7(513)x+2=30(514)14x+7×0.3=18.9(515)10.5-19x=4.8(516)5x÷20=0.3(517)4.7x+2.4×3=26(518)5.4x-0.5x-2.3=76.1(519)(0.2x+2.6)÷5=0.6(520)21x+2×85=212(521)2.8x-3.3=2.3(522)4x+19×4=244(523)2.8x-0.6x=55(524)156-45x=66(525)x-4.8=4(526)7.2÷x=3.6(527)x÷10=1.2(528)9x-6x+45=81(529)14x-10x+3.5=10.7(530)8x+15x+9=101(531)10x-4x+3=69(532)11.4÷x=1.9(533)15.1-2.4x=10.3(534)64+x=159(535)6.5x=13(536)5x-3x+5=83(537)3.9x-5.1=10.5(538)17x-8x+9=54(539)2x-7×0.3=5.3(540)3(4x+11)=57參考答案(1)x=0.7(2)x=22(3)x=15(4)x=28(5)x=9(6)x=28(7)x=6(8)x=8(9)x=12(10)x=7(11)x=92(12)x=12(13)x=20(14)x=13(15)x=2.6(16)x=6(17)x=11.5(18)x=14(19)x=57(20)x=5(21)x=0.6(22)x=1.3(23)x=2.3(24)x=10(25)x=6(26)x=12(27)x=41(28)x=1.2(29)x=11(30)x=0.4(31)x=10(32)x=5.6(33)x=10(34)x=21(35)x=6(36)x=18(37)x=8(38)x=9(39)x=0.3(40)x=3.3(41)x=5(42)x=0.2(43)x=0.6(44)x=11(45)x=57(46)x=1.4(47)x=3(48)x=99(49)x=6(50)x=35(51)x=2(52)x=18(53)x=7(54)x=15(55)x=24(56)x=40(57)x=15(58)x=0.2(59)x=11(60)x=6(61)x=64(62)x=0.6(63)x=18(64)x=50(65)x=30(66)x=2(67)x=4(68)x=63(69)x=2.8(70)x=53(71)x=50(72)x=36(73)x=4(74)x=67(75)x=12(76)x=30(77)x=40(78)x=26(79)x=76(80)x=0.5(81)x=71(82)x=9(83)x=10(84)x=8.5(85)x=4.5(86)x=2.4(87)x=20(88)x=5(89)x=8(90)x=13(91)x=19(92)x=40(93)x=21(94)x=6(95)x=27(96)x=57(97)x=8(98)x=42(99)x=5(100)x=9(101)x=0.4(102)x=0.9(103)x=18(104)x=168(105)x=10(106)x=3(107)x=1.8(108)x=9(109)x=12(110)x=26(111)x=2(112)x=4(113)x=65(114)x=17(115)x=1.1(116)x=2(117)x=4(118)x=13(119)x=0.4(120)x=30(121)x=7.6(122)x=0.7(123)x=1.8(124)x=2(125)x=13(126)x=17(127)x=11(128)x=7(129)x=5.9(130)x=13(131)x=1(132)x=18(133)x=4(134)x=5(135)x=0.9(136)x=8.4(137)x=99(138)x=11(139)x=76(140)x=3(141)x=7(142)x=23(143)x=16(144)x=2(145)x=3.2(146)x=12(147)x=3(148)x=33(149)x=1.2(150)x=9.8(151)x=0.4(152)x=28(153)x=8(154)x=10(155)x=7(156)x=46(157)x=8(158)x=4.7(159)x=17(160)x=10(161)x=0.5(162)x=6.3(163)x=76(164)x=2(165)x=74(166)x=1.7(167)x=20(168)x=2.1(169)x=24(170)x=6(171)x=15(172)x=5.1(173)x=6(174)x=6(175)x=7.6(176)x=20(177)x=2(178)x=11(179)x=2(180)x=12(181)x=11(182)x=1.5(183)x=85(184)x=2(185)x=10(186)x=1(187)x=83(188)x=21(189)x=2(190)x=20(191)x=0.3(192)x=5(193)x=5.4(194)x=36(195)x=7.3(196)x=67(197)x=1.1(198)x=29(199)x=10(200)x=0.2(201)x=21(202)x=39(203)x=11(204)x=9(205)x=12(206)x=12(207)x=8(208)x=68(209)x=1.4(210)x=4(211)x=9(212)x=8(213)x=15(214)x=0.2(215)x=0.8(216)x=11(217)x=9(218)x=7(219)x=4(220)x=27(221)x=77(222)x=15(223)x=13(224)x=29(225)x=9(226)x=22(227)x=1.6(228)x=8(229)x=9(230)x=15.2(231)x=3.4(232)x=2(233)x=0.7(234)x=15(235)x=0.2(236)x=0.5(237)x=2(238)x=10(239)x=4(240)x=0.6(241)x=1.6(242)x=17(243)x=8(244)x=8.4(245)x=0.7(246)x=0.9(247)x=4.5(248)x=0.3(249)x=41(250)x=0.4(251)x=3(252)x=1.6(253)x=0.9(254)x=2(255)x=0.3(256)x=8(257)x=0.2(258)x=7(259)x=50(260)x=0.2(261)x=4.9(262)x=12(263)x=48(264)x=1.9(265)x=11(266)x=3.3(267)x=14(268)x=32(269)x=1.1(270)x=6(271)x=0.2(272)x=17(273)x=1.5(274)x=5.4(275)x=55(276)x=13(277)x=3(278)x=28(279)x=0.6(280)x=13(281)x=15(282)x=11(283)x=20(284)x=13(285)x=30(286)x=2.5(287)x=31(288)x=1.1(289)x=3(290)x=2.3(291)x=13(292)x=25(293)x=0.4(294)x=6(295)x=4(296)x=7(297)x=0.2(298)x=3(299)x=63(300)x=7(301)x=4(302)x=13(303)x=31(304)x=31(305)x=14(306)x=85(307)x=31(308)x=4.8(309)x=4(310)x=19(311)x=3.7(312)x=2(313)x=3(314)x=9(315)x=7(316)x=15(317)x=32(318)x=8(319)x=7(320)x=5(321)x=5(322)x=2(323)x=0.3(324)x=4(325)x=25(326)x=1.4(327)x=1.6(328)x=38(329)x=4.9(330)x=2(331)x=5(332)x=2.4(333)x=3(334)x=5(335)x=42(336)x=0.5(337)x=78(338)x=15(339)x=18(340)x=3(341)x=0.7(342)x=62(343)x=95(344)x=19(345)x=10(346)x=8(347)x=12(348)x=3.2(349)x=10(350)x=31(351)x=17(352)x=0.6(353)x=0.6(354)x=9.8(355)x=1.9(356)x=9(357)x=66(358)x=8(359)x=40(360)x=2(361)x=1.8(362)x=5.9(363)x=37(364)x=13(365)x=26(366)x=0.6(367)x=2.9(368)x=23(369)x=2(370)x=11(371)x=1(372)x=2.8(373)x=64(374)x=5(375)x=2(376)x=49(377)x=8(378)x=10(379)x=60(380)x=1.5(381)x=2(382)x=18(383)x=11(384)x=3(385)x=9.6(386)x=51(387)x=3(388)x=25(389)x=0.9(390)x=0.8(391)x=8(392)x=63(393)x=32(394)