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)39x+91x-1.2=37.8(2)5.7x-0.9x-2.6=50.2(3)x÷2=10(4)50x=10(5)11(x-10)=198(6)90-x=53(7)(9x+40)÷37=4(8)3x÷11=0.6(9)4x=13.2(10)9.8x+3.1x=38.7(11)0.5x-1.4=15.6(12)x-66=19(13)(3.5x+2)÷5=9.5(14)7.3x+0.3x-2.9=73.1(15)71x+8x+0.2=87.1(16)4.1x+4.5x=60.2(17)2.5x+2.1x+0.6=120.2(18)5x+3x+13=317(19)0.3x+4.2x+4.1=35.6(20)18x-9x=18(21)0.6x+0.6×19=30.6(22)x÷53=3(23)x+76=125(24)2x=38(25)46x-16x-3.7=11.3(26)63x-52x-0.8=13.5(27)12x÷2=30(28)7.8x+4.3x-4.1=104.8(29)2.5x=15(30)5x-4×16=11(31)7x÷21=0.9(32)15x+13x+23=359(33)0.6x÷21=0.8(34)(9x-19)÷7=5(35)27x+36x+1.4=58.1(36)8x-10×0.6=1.2(37)5(x+14)=110(38)3.1x+3.9x-4.7=58.3(39)9.2+x=16(40)3x+2×68=325(41)x÷12=0.5(42)55x-48x+3=8.6(43)41x-22x-1.9=19(44)10x-3x-28=91(45)(5.1x-8.8)÷5=1.3(46)0.7x+0.3×10=18.4(47)14.7+24x=26.7(48)76x-25x+0.3=25.8(49)3.5x+1.9x=37.8(50)3x÷6=28(51)174-3x=18(52)4x-39=93(53)4x÷2=1.2(54)90x-57=123(55)29x+20x-1.4=150.5(56)(8.1x-4.8)÷15=1.3(57)46+2x=102(58)14x+5x=38(59)x+8.5=17.4(60)0.8x÷12=1.2(61)38÷x=19(62)6x-4×0.5=14.2(63)2(12x-21)=126(64)8.8÷x=4.4(65)17x+7x=48(66)13x-9x-16=12(67)15x-2x-22=108(68)6.5x-3.7x=8.4(69)64x+17x+2.4=75.3(70)11x-3x+16=152(71)x÷8=0.6(72)146-10x=26(73)6(1.4x-0.5)=30.6(74)42x+8×2=24.4(75)4x=180(76)0.3x+2.3=11.3(77)22x+4×13=140(78)x÷5=37(79)4(3.4x+5.7)=50(80)x-17=40(81)3(0.2x-2)=6(82)5.9x-2.8x=34.1(83)x+62=67(84)5.8x-4.5x-0.6=8.5(85)55-4x=23(86)6.6-x=2.7(87)x-3.2=6.7(88)x-2.8=1.4(89)37x-2.3=5.1(90)5.5x+2.8x=132.8(91)x+87=130(92)9.2÷x=0.4(93)9x+8x=272(94)52÷x=13(95)45x-2×2.8=12.4(96)8.4-x=6.8(97)89-x=22(98)75+x=121(99)(0.6x+4.2)÷13=0.6(100)1x+1=18(101)3x-1.2=9(102)84+31x=146(103)(3.9x-3.3)÷24=2.3(104)0.5x+1.3x-3.7=89.9(105)76+x=127(106)11(7x-37)=132(107)17x+25×0.3=21.1(108)69-x=44(109)9(0.2x+0.4)=30.6(110)(x+42)÷23=3(111)96÷x=4(112)6÷x=1(113)2x÷14=0.6(114)x-0.2=3.9(115)x-11=52(116)3.2x+0.5×6=22.2(117)5x+2.6=13.1(118)1.4x-0.4x=45(119)5x-4×4.1=2.1(120)9.6x+1.7x-4=97.7(121)25x=20(122)9.8-x=5.7(123)17.7-69x=3.9(124)11x=165(125)1.2x=16.8(126)62x-15x+4.1=46.4(127)10x-4x+5=113(128)18+3x=129(129)2x+33=157(130)x÷34=2(131)1.6x-3.6=4.4(132)15x-2x-29=23(133)17x-6x-23=98(134)4.8x+7.5x+3.2=77(135)0.7x+9.9x=42.4(136)5x=11.5(137)142-4x=114(138)8.9-x=5.4(139)122-41x=40(140)10x+11x+46=109(141)0.5x÷60=0.3(142)x+56=148(143)3x÷20=0.6(144)3x÷6=14(145)9+x=13.5(146)8x+0.9x+1=72.2(147)0.3x+4.8=23.7(148)7x+38×0.4=32.7(149)14.8-0.4x=6.4(150)6.7-x=6.4(151)7.5x+6.9x+1.1=116.3(152)2.9x+8.6x+4.1=130.6(153)5x+12×5=180(154)x÷6=2.8(155)x÷17=5(156)1x-0.6x-3.8=15.8(157)3x+2.4x=37.8(158)3x-4×38=25(159)13x+2x=120(160)3.1x+3.5x=125.4(161)5(2.2x+1)=38(162)x+11=102(163)x÷5=5(164)54+18x=162(165)12x÷4=45(166)0.2x-2.8=17(167)2(0.3x-2)=16.4(168)10x+19x-45=187(169)3.6x÷90=0.2(170)9.9+2.1x=20.4(171)6.8+0.4x=18(172)0.2x+0.2×11=3.8(173)(4x+28)÷32=4(174)36x+4.2=18.6(175)17+0.6x=22.4(176)x-27=58(177)5+x=86(178)14+0.7x=15.4(179)0.6x+1.7x-4.8=119.4(180)80-x=25(181)0.3x÷21=0.7(182)27x÷81=0.2(183)4x=156(184)6x-3x=15(185)0.5x+0.7x-0.4=60.8(186)8x-3×49=45(187)3(1.3x-9.4)=3(188)21x+55=244(189)6x+2×4.2=21(190)8x÷4=48(191)6.6-x=3(192)8(0.2x+3.3)=31.2(193)3(0.2x+3.7)=27.3(194)5.6+x=13.3(195)6.2x+3.3=15.7(196)4x+6×27=242(197)4.2x-0.8x=74.8(198)2x-2×14=128(199)92+8x=132(200)93x-19=167(201)15.6÷x=1.3(202)24x÷96=2(203)17.3-0.3x=13.7(204)0.8x+5.2=22.8(205)23x+5×1.9=25.6(206)1.7x-1.4x+1.4=7.1(207)78+4x=186(208)2(2x-14)=88(209)8x-6x+39=85(210)97x-49=145(211)39x+58x+1.3=59.5(212)x÷2=1(213)6.1x-5.1=13.2(214)17x+9×0.4=7(215)19.5-7x=9.7(216)(10x-24)÷4=44(217)(4x+8)÷22=4(218)1.9+x=8.7(219)6.4+x=11.6(220)33x+53x-3.6=22.2(221)5.7-x=1.8(222)x+6.6=7.5(223)16x+10x=156(224)26+x=53(225)(3.2x+3.4)÷30=1.5(226)10.9-4x=8.1(227)(8x-23)÷3=43(228)3.5+x=9.8(229)1.2x-2.9=3.1(230)5x+1=7.5(231)(12x-38)÷7=10(232)27x+70x-3.7=132.1(233)7.6-x=3.5(234)4.7x-3.6x+1.8=16.1(235)x-7=31(236)x-0.6=8.8(237)3x-55=20(238)9x-0.3x=17.4(239)1.2÷x=0.4(240)0.4x+1.7x-0.4=39.5(241)2(2.9x-6.9)=32.6(242)3(8.1x-7.6)=25.8(243)6.3÷x=0.3(244)3.8x+8x+3=109.2(245)8x-1.5x+0.2=13.2(246)15.7+7x=19.2(247)6.8+x=8.6(248)32÷x=8(249)4(2.9x+0.7)=49.2(250)37x-52=59(251)16x-2x-29=13(252)42÷x=3(253)1x-1.2=5.8(254)49÷x=7(255)16x-10x+26=50(256)3x÷78=0.2(257)3(x+3)=129(258)18.2+3.3x=31.4(259)46x-33x+1.1=20.6(260)12x=120(261)91x-27x-0.5=25.1(262)83+x=100(263)78x÷12=1.3(264)x+3.9=13.7(265)11.9÷x=1.7(266)30x÷2=45(267)6.4x-2.1x+0.2=30.3(268)10x+3x+19=253(269)2x=13(270)0.5x+1.4=4.4(271)7x-4×1.2=4.3(272)4x÷21=8(273)(6x+20)÷19=8(274)3(6x+9)=117(275)9.1x-8.1x=3(276)18x-12x+43=61(277)(10x+48)÷16=8(278)40x-4=4(279)17x+10x-38=70(280)9.5x-6.4x+0.2=21.9(281)17.1-19x=3.8(282)x+55=134(283)38x-29×0.3=6.5(284)0.4x+2.4=5.2(285)10x-5x-11=64(286)(4.8x-8.9)÷23=1.7(287)0.2x=14.8(288)88x-7x-1.3=87.8(289)51x-16x+1.3=22.3(290)9.4x=18.8(291)(2x+20)÷7=10(292)x÷2=0.5(293)82x-23x-4.2=13.5(294)6.9x-1.1x-2=9.6(295)18-20x=12(296)16x-11x=30(297)4(19x+6)=176(298)3.4x-0.8x+0.7=65.7(299)64x+82x-3.7=98.5(300)5x+7x-24=144(301)3x-5.8=8.3(302)x÷15=4(303)0.6x=11.4(304)8(10x-38)=176(305)38x-4.9=2.7(306)(6.6x+4.2)÷9=10(307)14+7.8x=29.6(308)x-72=18(309)1.5x+0.8×10=11(310)2.6+4x=3.8(311)18x+29×2=238(312)x-6.9=1.1(313)40x-3×1.8=14.6(314)7(0.2x+0.5)=25.9(315)7x-2x+15=60(316)62x-50x+2.7=18.3(317)3.1x-2.9×2=9.7(318)x-49=45(319)7(0.2x+0.8)=29.4(320)4x+62x+4.5=110.1(321)5(2x+6)=150(322)7(2x+3)=119(323)x+0.9=3.6(324)3(5.2x+1)=49.8(325)1.2x÷78=0.2(326)2(7x+17)=104(327)(7x-33)÷10=10(328)0.4x-0.5×12=11.6(329)9.6x-4.6x=40(330)7x+34=69(331)6x+10×0.4=23.8(332)4.4+7x=20.5(333)4x+3x+22=281(334)10(2x-14)=200(335)29x=87(336)16.3+34x=33.3(337)15x+14x=319(338)4.9+x=9.2(339)8.2-3x=2.2(340)19-4.5x=1(341)6.2x-5.7x=1.5(342)0.2x=12.2(343)70x+63x+4.2=84(344)2x-2.4=9.2(345)5x+9x-23=271(346)10x+5x=60(347)2x-2×2.4=3.8(348)19x-15x=28(349)0.2x-2.2=1(350)23+x=40(351)x-26=49(352)9x+5x+4=200(353)(5.8x-3.4)÷21=2.6(354)17.6-14x=14.8(355)11.8+1.1x=26.1(356)0.9x+3.3×4=33(357)34x-1.4=12.2(358)16x-23×0.2=8.2(359)7.9x+5.3=21.1(360)35x-3.2=14.3(361)23x-14×9=35(362)6x-3x-47=37(363)4x+2.7=12.3(364)9x+93×2=339(365)2.1x-5.9=13(366)144÷x=48(367)1.2x-0.6×11=4.2(368)3x+27=204(369)4x-42×3=34(370)x÷3=48(371)7+6.3x=19.6(372)(1.1x+0.3)÷3=3.4(373)18x-16x+43=53(374)76-x=31(375)x-6.4=3.2(376)11x+8x+5=43(377)(19x+9)÷9=20(378)1.2x+0.2x+1.5=35.1(379)2x=14(380)(4.1x-1.9)÷4=2.6(381)4(27x-31)=92(382)6.7x-4.3x+1.4=23(383)17(0.3x-1.4)=17(384)38x+49x-2.2=110.9(385)17x+5x-46=108(386)4x+10x+38=262(387)26x-12x+2.6=50.2(388)2.7x+1.4x-4.6=143(389)15.6+28x=29.6(390)7x=16.1(391)(3.5x-9.1)÷7=7.2(392)2.1x-0.2×18=15.3(393)0.5x-0.5×23=2(394)0.4x-1×5=6.6(395)x+31=126(396)1x+0.2×15=17(397)6x+24×3=192(398)(10x-22)÷2=59(399)7(0.7x-8.3)=25.2(400)9x-36=117(401)7x-4x-32=16(402)36x-26x-1=26(403)92-x=63(404)48x+4.9=14.5(405)3x+30=147(406)2.9x+6.9x+4.7=53.7(407)0.5x+0.2×15=14(408)50+24x=146(409)16.9-0.8x=3.3(410)2.2+0.7x=6.4(411)5x+4×4=31(412)137-13x=33(413)8x-4×25=76(414)x+58=87(415)6.5÷x=0.5(416)7x-4.8x+0.7=29.3(417)0.4x+1.3×2=8.6(418)0.6x÷8=2.1(419)83x+11=177(420)x+14=92(421)0.7x=14.7(422)13x-3x=120(423)10x=100(424)(13x+24)÷15=12(425)1.5x÷75=0.2(426)3x+13x-17=111(427)1.9x+1.5=20.5(428)195-9x=123(429)5(3x-35)=170(430)13x-9x=60(431)154÷x=14(432)(6.8x-5.6)÷2=27.8(433)94-x=61(434)(4x-8)÷2=50(435)x÷38=0.5(436)1.1x-0.5×26=4.6(437)13x=39(438)7x÷14=9(439)5.6x-1.9x-3.5=40.9(440)32+x=89(441)1.1+3x=13.7(442)(3.1x-7.3)÷25=0.7(443)3(1.2x-3)=5.4(444)14x+4x-0.7=103.7(445)9x-1.6=1.1(446)2x=184(447)17x+5.8=12.6(448)19x-2×31=33(449)176÷x=2(450)x-1.4=1.3(451)x+3.1=3.3(452)10.8÷x=0.6(453)19x-6x-4.2=51.7(454)14x+17x=93(455)7x+14x=63(456)2.8x-1.9x-0.8=1(457)2x-28=148(458)45x-14x-4.5=29.6(459)x÷44=0.3(460)19x+58=229(461)67-x=13(462)41+3x=131(463)4.3x+3x=36.5(464)12x+5=8.6(465)66x=13.2(466)3.4x-0.3x-1.9=66.3(467)3(8x+22)=114(468)2x+7×4=40(469)3(x+21)=141(470)3.1x=12.4(471)73x+48x-1.8=58.7(472)(13x-18)÷41=4(473)x÷29=3(474)142-12x=82(475)6x+56=194(476)x÷35=0.2(477)3(11x-34)=63(478)x+2=5(479)4x+33×0.5=32.1(480)8.9x-2.2=15.6(481)9x+15x+22=214(482)6.8+29x=15.5(483)70x+12x-1.5=39.5(484)69-x=39(485)5.9x-4.3x-1.6=3.2(486)46+5x=81(487)54x+1.9=18.1(488)163-10x=133(489)5x+10x-3=42(490)2x=3.4(491)9.8+x=17(492)(4.2x+9)÷24=1.6(493)1.8x÷3=3.6(494)18.6-0.2x=1.8(495)0.9x-0.3×34=1.5(496)18x-9x+46=100(497)41x-19=145(498)28x-18x+4.9=20.9(499)10x+21x+0.5=43.9(500)77+x=83(501)15.5-0.3x=12.2(502)82+x=95(503)26x-23x+2.5=13.6(504)12x+11=155(505)x-2.8=4.2(506)2x+9×17=215(507)9x-25×3=78(508)8.5-x=3.5(509)(5.1x+1.5)÷24=0.7(510)51x+68x+3.9=51.5(511)34x+79x+1.3=46.5(512)15.8-7.3x=1.2(513)4.9x-0.7x-3.9=54.9(514)(12x-24)÷4=33(515)0.5x-0.5×7=16(516)x-1.5=3.9(517)x÷2=2.1(518)7.3-1.2x=3.7(519)12x+14x-23=107(520)45x+5.7=23.7(521)15.2-4x=8(522)(2.6x+6.2)÷6=4.5(523)x-16=75(524)(9.9x+9.3)÷3=9.7(525)8.3x-1.2x=56.8(526)9x-5x=40(527)6.5+7x=12.8(528)x+7.7=7.9(529)0.6x=7.2(530)10x-4x=78(531)18x-16x+18=38(532)13.3-5x=7.8(533)11.9-0.3x=9.8(534)3.9x-3.4x+3.6=14.1(535)24x÷64=0.3(536)0.6x+6.7x=73(537)x+8.2=10.9(538)12x+7x-13=272(539)x+1=1.5(540)7x-2x=110參考答案(1)x=0.3(2)x=11(3)x=20(4)x=0.2(5)x=28(6)x=37(7)x=12(8)x=2.2(9)x=3.3(10)x=3(11)x=34(12)x=85(13)x=13(14)x=10(15)x=1.1(16)x=7(17)x=26(18)x=38(19)x=7(20)x=2(21)x=32(22)x=159(23)x=49(24)x=19(25)x=0.5(26)x=1.3(27)x=5(28)x=9(29)x=6(30)x=15(31)x=2.7(32)x=12(33)x=28(34)x=6(35)x=0.9(36)x=0.9(37)x=8(38)x=9(39)x=6.8(40)x=63(41)x=6(42)x=0.8(43)x=1.1(44)x=17(45)x=3(46)x=22(47)x=0.5(48)x=0.5(49)x=7(50)x=56(51)x=52(52)x=33(53)x=0.6(54)x=2(55)x=3.1(56)x=3(57)x=28(58)x=2(59)x=8.9(60)x=18(61)x=2(62)x=2.7(63)x=7(64)x=2(65)x=2(66)x=7(67)x=10(68)x=3(69)x=0.9(70)x=17(71)x=4.8(72)x=12(73)x=4(74)x=0.2(75)x=45(76)x=30(77)x=4(78)x=185(79)x=2(80)x=57(81)x=20(82)x=11(83)x=5(84)x=7(85)x=8(86)x=3.9(87)x=9.9(88)x=4.2(89)x=0.2(90)x=16(91)x=43(92)x=23(93)x=16(94)x=4(95)x=0.4(96)x=1.6(97)x=67(98)x=46(99)x=6(100)x=17(101)x=3.4(102)x=2(103)x=15(104)x=52(105)x=51(106)x=7(107)x=0.8(108)x=25(109)x=15(110)x=27(111)x=24(112)x=6(113)x=4.2(114)x=4.1(115)x=63(116)x=6(117)x=2.1(118)x=45(119)x=3.7(120)x=9(121)x=0.8(122)x=4.1(123)x=0.2(124)x=15(125)x=14(126)x=0.9(127)x=18(128)x=37(129)x=62(130)x=68(131)x=5(132)x=4(133)x=11(134)x=6(135)x=4(136)x=2.3(137)x=7(138)x=3.5(139)x=2(140)x=3(141)x=36(142)x=92(143)x=4(144)x=28(145)x=4.5(146)x=8(147)x=63(148)x=2.5(149)x=21(150)x=0.3(151)x=8(152)x=11(153)x=24(154)x=16.8(155)x=85(156)x=49(157)x=7(158)x=59(159)x=8(160)x=19(161)x=3(162)x=91(163)x=25(164)x=6(165)x=15(166)x=99(167)x=34(168)x=8(169)x=5(170)x=5(171)x=28(172)x=8(173)x=25(174)x=0.4(175)x=9(176)x=85(177)x=81(178)x=2(179)x=54(180)x=55(181)x=49(182)x=0.6(183)x=39(184)x=5(185)x=51(186)x=24(187)x=8(188)x=9(189)x=2.1(190)x=24(191)x=3.6(192)x=3(193)x=27(194)x=7.7(195)x=2(196)x=20(197)x=22(198)x=78(199)x=5(200)x=2(201)x=12(202)x=8(203)x=12(204)x=22(205)x=0.7(206)x=19(207)x=27(208)x=29(209)x=23(210)x=2(211)x=0.6(212)x=2(213)x=3(214)x=0.2(215)x=1.4(216)x=20(217)x=20(218)x=6.8(219)x=5.2(220)x=0.3(221)x=3.9(222)x=0.9(223)x=6(224)x=27(225)x=13(226)x=0.7(227)x=19(228)x=6.3(229)x=5(230)x=1.3(231)x=9(232)x=1.4(233)x=4.1(234)x=13(235)x=38(236)x=9.4(237)x=25(238)x=2(239)x=3(240)x=19(241)x=8(242)x=2(243)x=21(244)x=9(245)x=2(246)x=0.5(247)x=1.8(248)x=4(249)x=4(250)x=3(251)x=3(252)x=14(253)x=7(254)x=7(255)x=4(256)x=5.2(257)x=40(258)x=4(259)x=1.5(260)x=10(261)x=0.4(262)x=17(263)x=0.2(264)x=9.8(265)x=7(266)x=3(267)x=7(268)x=18(269)x=6.5(270)x=6(271)x=1.3(272)x=42(273)x=22(274)x=5(275)x=3(276)x=3(277)x=8(278)x=0.2(279)x=4(280)x=7(281)x=0.7(282)x=79(283)x=0.4(284)x=7(285)x=15(286)x=10(287)x=74(288)x=1.1(289)x=0.6(290)x=2(291)x=25(292)x=1(293)x=0.3(294)x=2(295)x=0.3(296)x=6(297)x=2(298)x=25(299)x=0.7(300)x=14(301)x=4.7(302)x=60(303)x=19(304)x=6(305)x=0.2(306)x=13(307)x=2(308)x=90(309)x=2(310)x=0.3(311)x=10(312)x=8(313)x=0.5(314)x=16(315)x=9(316)x=1.3(317)x=5(318)x=94(319)x=17(320)x=1.6(321)x=12(322)x=7(323)x=2.7(324)x=3(325)x=13(326)x=5(327)x=19(328)x=44(329)x=8(330)x=5(331)x=3.3(332)x=2.3(333)x=37(334)x=17(335)x=3(336)x=0.5(337)x=11(338)x=4.3(339)x=2(340)x=4(341)x=3(342)x=61(343)x=0.6(344)x=5.8(345)x=21(346)x=4(347)x=4.3(348)x=7(349)x=16(350)x=17(351)x=75(352)x=14(353)x=10(354)x=0.2(355)x=13(356)x=22(357)x=0.4(358)x=0.8(359)x=2(360)x=0.5(361)x=7(362)x=28(363)x=2.4(364)x=17(365)x=9(366)x=3(367)x=9(368)x=59(369)x=40(370)x=144(371)x=2(372)x=9(373)x=5(374)x=45(375)x=9.6(376)x=2(377)x=9(378)x=24(379)x=7(380)x=3(381)x=2(382)x=9(383)x=8(384)x=1.3(385)x=7(386)x=16(387)x=3.4(388)x=36(389)x=0.5(390)x=2.3(391)x=17(392)x=9(393)x=27(39