五年级数学(方程)习题及答案汇编

五年级数学(方程)习题及答案汇编(1)98x=19.6(2)6.4x-4.7x-4.4=4.1(3)0.3x÷9=1.7(4)11x-9x+44=76(5)(4.3x-2.3)÷29=1.7(6)1.2+x=10.4(7)14x+27=181(8)29-x=16(9)0.8x-0.5×15=9.3(10)2(6x+24)=180(11)7.2÷x=3.6(12)6.8-x=2.4(13)0.2x+0.7x+2.3=27.5(14)154-2x=94(15)0.9x-2.6×3=3(16)0.9x+2.4x=125.4(17)2.3x-1×5=4.2(18)116-14x=74(19)1.2+x=6.6(20)17.8÷x=0.2(21)12x+44×0.4=26(22)58x-53x-2.8=5.7(23)2x-5×7=113(24)2x÷22=7(25)2(17x+45)=192(26)66x+63x-0.6=38.1(27)6x-2x-27=57(28)x÷2=0.2(29)0.2x÷12=1.5(30)129-2x=63(31)19-0.5x=16.5(32)4.1x+7.6x=128.7(33)4x+3.3x=175.2(34)2x-3.6=12.8(35)16.8÷x=0.8(36)x-67=31(37)6x+14=200(38)x-44=27(39)1.7x+1.5×5=26.2(40)0.3x-2.2=2.9(41)15.8-2.7x=2.3(42)1x-0.7x=21(43)3x+54×3=330(44)17.8+0.2x=30.8(45)1.9x-0.9×2=2(46)79-x=73(47)18(1.4x-8.4)=25.2(48)4x+13x+4=174(49)0.3x-3.6=3.6(50)2x+4×4.7=22.6(51)11x+16x-25=83(52)10x+8x=288(53)2.8x÷7=0.8(54)(10x+14)÷4=61(55)28x+2×4.2=19.6(56)86-x=64(57)2(0.9x+2.2)=38.6(58)16.1-6x=7.1(59)5.2+4.7x=14.6(60)94+x=172(61)28+x=99(62)(1.8x+8.3)÷19=1.1(63)(12x+22)÷2=59(64)2x+5x+18=116(65)5x+53x-1.9=15.5(66)2(0.4x-6.2)=18(67)3x÷8=1.5(68)0.2x÷9=2.2(69)4.8x-5=9.4(70)198+84x=366(71)(5x-11)÷27=2(72)9.4x-6.4x+2.7=14.7(73)9.6÷x=1.6(74)3.6x-3x-0.3=8.1(75)11x=5.5(76)6x+18x+27=219(77)0.9x÷4=2.7(78)12x-5×1.8=9(79)0.7+x=1.9(80)12x-3x-28=62(81)6.9+14x=9.7(82)2x+41=139(83)1.8x-1.4x=12.8(84)48-x=20(85)4x-3.4x+3=9.6(86)(12x+18)÷27=2(87)3x÷10=18(88)10(x-2)=130(89)18x+1.4=14(90)87x-7x+3.6=75.6(91)21(0.7x-0.9)=25.2(92)81-x=15(93)(10x-6)÷4=36(94)76x+71x-0.4=87.8(95)2x+4×47=368(96)17.7-3x=7.8(97)55x-41x-4.8=14.8(98)5.7x-0.5x=57.2(99)9x+13x+11=187(100)4(0.9x-6.3)=18(101)2(x+46)=102(102)31x+19x-2=63(103)60+x=140(104)(3.5x+0.4)÷27=1.7(105)1.6x=11.2(106)0.4x+0.5×6=5.4(107)x+9.5=10.6(108)11x-7x+30=66(109)13.1-8x=3.5(110)6x=102(111)4(0.2x+9.8)=44(112)105-45x=15(113)2x+9×0.3=6.3(114)9.5+x=19.1(115)11.8-1.4x=9(116)8x-11=117(117)1x-1.2=5.8(118)7.6x-5.5=9.7(119)2(x+31)=72(120)10.8÷x=0.9(121)37x-3.6=7.5(122)8x+1.5x+3.3=107.8(123)72-2x=10(124)80x-47x+4.3=10.9(125)4x=180(126)(6.3x-9.8)÷14=2.9(127)2x=136(128)47x+61x+4.8=69.6(129)2.2x+5.1x=109.5(130)x+0.8=10.2(131)6x-3×2=1.2(132)x+94=135(133)15x-3×2=1.5(134)26x-3×13=13(135)2.3x+3.1x=140.4(136)4x+3x=112(137)32x+5.7=24.9(138)2x÷12=8(139)6.5x-0.5x=84(140)2(11x-29)=52(141)3.4x+0.9x+4.8=112.3(142)19x+12x=93(143)6.5x-3.3x-2.6=10.2(144)6x÷69=0.2(145)x÷3=10(146)43x+14x+4.3=55.6(147)x÷69=0.2(148)x-4.7=3.9(149)5.8x-1.8x+3.1=27.1(150)13x+12x=50(151)55+5x=125(152)0.6x-2.4=3(153)0.5x+3.1=13.1(154)0.7x+5=7.1(155)119-6x=29(156)16x+8x+44=116(157)55+x=64(158)4+x=19(159)20x-11×0.8=1.2(160)2x-56=38(161)0.2x=9.6(162)17x-18=33(163)x+8.3=16(164)5x-26=59(165)1.6+2x=5.8(166)x÷10=14(167)0.8x+7.7x-0.2=93.3(168)10x-4x=30(169)69x+58x+4.4=106(170)9(2x+8)=108(171)27x+62x+1.1=63.4(172)x+52=79(173)2x-9×11=23(174)x+3.8=10.6(175)9x÷63=2(176)1.2x-0.7x-3.4=32.1(177)2x=56(178)18.5-13x=12(179)0.2x+0.8x-4.1=40.9(180)18.8+2x=36.4(181)8x-2x-21=123(182)(2.6x+3.6)÷3=6.4(183)41x-35x-2.2=3.8(184)5x÷35=0.2(185)5x-2×48=104(186)7x+8x+1.8=21.3(187)x+78=168(188)(10x-26)÷4=41(189)2x-2.4=3.4(190)(13x+37)÷4=71(191)2.4x÷21=0.8(192)7.8x-2.6x=10.4(193)3.3x+0.2×49=29.6(194)7.9-x=5.6(195)12x-10x-13=15(196)2x+7x=216(197)x+0.9=8.7(198)x÷32=0.6(199)x÷99=0.2(200)(13x+33)÷21=9(201)12.2-2.1x=5.9(202)22x=13.2(203)9x+6x-9=201(204)5.6x+3x+2=88(205)146-8x=90(206)0.5x+4.3=11.3(207)2.3x+0.8x-1.1=98.1(208)4x-4×35=52(209)1.7+x=9(210)7-x=1.4(211)82x-1.8=14.6(212)4x+2×2.1=20.2(213)72+x=127(214)9.9x-9.2x+2=8.3(215)15x=3(216)0.3x+0.9×8=12.3(217)13x=19.5(218)12.5-4x=11.7(219)2x÷12=12(220)7(2x-12)=112(221)56x+66x+2=172.8(222)80x-30x+2.7=22.7(223)x-0.2=3.2(224)x-0.8=1.6(225)13.1-6x=2.9(226)4x-2x=16(227)175÷x=25(228)97x-19x-3.8=66.4(229)(4.5x+5.1)÷23=1.2(230)18-0.5x=11.5(231)119+4x=247(232)x+9.4=15.8(233)x÷21=0.4(234)(1.4x-2.3)÷3=2.5(235)15x+12x-10=44(236)4(7x-11)=40(237)8(1.2x+2.3)=47.2(238)13x+14x-33=183(239)10x-2x-13=99(240)20x+5.8=15.8(241)13x+10x-3=273(242)x+4=44(243)4.3+1x=20.3(244)11x=55(245)x-2.5=1.8(246)22x-5×1.4=1.8(247)9x+2x-2.7=86.4(248)0.7x=14.7(249)4(0.7x-0.7)=47.6(250)32x-13x-2.8=31.4(251)85+x=151(252)x+52=98(253)x-20=64(254)0.8x-0.5×6=12.2(255)(6x-42)÷3=32(256)81+x=130(257)8.3x-4.4x-3.7=31.4(258)x÷6=5(259)(1.8x+7.8)÷12=3.5(260)6.3x-3.2x+1.7=29.6(261)0.9x÷27=0.4(262)16x-47=97(263)x÷34=0.4(264)5x-5.6=8.9(265)6(5x-12)=108(266)3(2.4x-6.2)=3(267)2x=19.8(268)17.4-0.5x=8.4(269)2.5x+1.8x+3.3=59.2(270)8.5x+2.2x+4.2=100.5(271)32÷x=16(272)12x+50×2=292(273)0.5x=1.5(274)6x=3.6(275)16.8÷x=0.3(276)2x+15×0.5=14.3(277)0.3x=3(278)6.3x+2.2x+1.6=86.6(279)62x+25x-3.8=135.4(280)13x-40=64(281)14x-4x=120(282)1.4x+0.4×48=33.2(283)x÷22=9(284)2x+6x=264(285)x÷4=2(286)10x+7x-21=115(287)2x+1.8x-1.2=10.2(288)12x+8x+3=43(289)4.6x-1.7x-2.4=52.7(290)4x+10x-17=193(291)77x-41x-3.1=22.1(292)16x-13x+30=60(293)5x÷60=2(294)3.7x-0.3x+1.2=86.2(295)20x-7x+1.4=33.9(296)16.2+23x=20.8(297)x-70=29(298)2.1x+3.9x=138(299)x+18=51(300)3x=6.3(301)6x-6×1.7=9(302)2x-1.2=7.4(303)(16x+8)÷14=20(304)7.2x+9x-1.3=63.5(305)17.7-1.9x=12(306)2x+4×35=186(307)0.2x+5.8=14.6(308)(9.6x+9.5)÷7=4.1(309)65x-19x-2.3=52.9(310)4.6+0.6x=20.2(311)5x-2x-38=49(312)0.3x=17.1(313)4x+5.5x=104.5(314)18x÷66=0.3(315)33x+5×4=29.9(316)(2x-6)÷30=1(317)75+x=153(318)x-25=51(319)(4x+14)÷2=37(320)2.8x=8.4(321)1.7x+5.3x-4.7=79.3(322)6÷x=0.6(323)x+71=168(324)96x-60x-2.4=26.4(325)15x-49×2=52(326)8x+5.3=16.5(327)x÷29=0.2(328)(2.1x+6.6)÷9=1.9(329)60÷x=30(330)x÷9=4(331)0.7x÷13=1.4(332)0.8x=3.2(333)0.3x-4.7=11.5(334)8.9-x=5.6(335)4.2-x=1.7(336)x-23=55(337)6x+14=116(338)2.1x-1.3×5=6.1(339)x-5.7=3.1(340)15.2-13x=12.6(341)15x+1.4=4.4(342)8.9x-4.8x=32.8(343)16.5÷x=1.5(344)(1.6x-5.8)÷6=1.7(345)0.4x+1=12.2(346)3x÷4=3.6(347)18.2-0.3x=17(348)12.3+4.2x=20.7(349)22(1.1x-9.7)=28.6(350)(5x-7.7)÷17=1.9(351)10x+5×13=245(352)12x-10x=14(353)3(8x-14)=102(354)3.4+5.3x=14(355)13.5-23x=4.3(356)x+6.1=9(357)9.8x-7.1x-0.4=18.5(358)1.7x+2.6×7=36.9(359)6.8x+3=16.6(360)18x+9x=135(361)8.2-x=1.2(362)2.8x+0.2x-3=12(363)6.1x-5.9=12.4(364)7x+15×11=200(365)x÷65=0.3(366)178+2x=252(367)0.2x+2.7×4=16.6(368)0.5+x=5.6(369)194-5x=94(370)2(0.6x+7.5)=45(371)2x+5×4=48(372)166÷x=2(373)5.8-x=5.2(374)41x-3x+2.4=51.8(375)17x-14x=18(376)2(7x-17)=106(377)3x-5×4=145(378)0.9x+2.6=11.6(379)3x+29=71(380)5x-2x=54(381)1.2+0.4x=3.2(382)13x+4.7=9.9(383)109+22x=263(384)11x-10=12(385)(3.4x+8.6)÷22=0.7(386)22x+81x+3.4=106.4(387)4(0.6x-1.2)=36(388)(4x-4.8)÷3=18.4(389)5x-2.9x-4.4=37.6(390)75x+28x+0.9=124.5(391)4.5x=18(392)x-78=21(393)0.5x+1.6x+4.8=69.9(394)(2.6x+1.7)÷3=4.9(395)1x-0.3×40=1(396)3x+5x-49=119(397)19x-12x+2.9=23.9(398)15x+7x-4.1=108.1(399)9(0.4x+1.4)=30.6(400)8.1+x=17.6(401)2(11x-24)=194(402)16x-13x+42=78(403)87x-57=117(404)0.4x÷3=3.6(405)3x=135(406)17.9-15x=1.4(407)74-x=28(408)4.3+x=11.8(409)75+2x=165(410)7x÷3=1.4(411)x+0.7=0.9(412)18x+2=18.2(413)7x+4.7x-2.1=21.3(414)4.7x+4.5x=156.4(415)144÷x=36(416)11(0.4x+0.5)=18.7(417)3.9x+2.7x+4=96.4(418)2(2x-46)=64(419)13x+9x=330(420)6x+34=184(421)22x-3.7=9.5(422)7.3x-3.3x+2.6=30.6(423)46x=184(424)2x÷5=3.2(425)1.1x+4.1=10.7(426)8.5x-4.9x=25.2(427)55x-37=128(428)2x+5.5=17.5(429)4+6x=20.8(430)5(0.3x+1.2)=10.5(431)4x-3.8x=2(432)(4x-5)÷23=1(433)6x+16×1=23.8(434)19-0.2x=1.4(435)5(2x+22)=180(436)16x-3x+9=87(437)96÷x=8(438)32x÷16=6(439)13x-29×3=108(440)(4x-45)÷17=3(441)30x-17x+4.9=11.4(442)14.6+2x=15.6(443)16.5+1.4x=31.9(444)6.9x-4.3x+3.1=10.9(445)x+5=12.1(446)11x-3x-16=32(447)2(2x+19)=154(448)77x+66x-2.8=54.4(449)3x÷33=0.5(450)(2x-2.7)÷3=7.1(451)x-2.4=7.3(452)6x+5.7=21.9(453)6x+5x+14=124(454)3.6x-0.3×31=1.5(455)x-15=59(456)(5.3x-4.5)÷6=1.9(457)12x-9x+10=40(458)6.3+x=11.1(459)44+30x=134(460)8x=24(461)18x-2x=176(462)0.2x+0.5×23=14.3(463)6.1-x=4.2(464)8x-1.3x+4.9=18.3(465)(15x-18)÷12=6(466)14x+4x-27=135(467)55x-2.9=8.1(468)33÷x=11(469)13x+23=127(470)19x-17x+31=41(471)14x-12×0.5=10.8(472)x÷11=3(473)12x+4x+27=139(474)6x-0.8x-1.1=30.1(475)22x+46=156(476)14.3÷x=1.3(477)90x+73x+3.8=52.7(478)23x-18×0.3=6.1(479)x-7=86(480)x÷16=7(481)3x+7×1.5=23.7(482)3x-2=9.4(483)7.9x+6x-0.4=41.3(484)19+16x=131(485)64-x=31(486)x÷2=33(487)86-x=17(488)10x-8x-10=30(489)7.9+7x=16.3(490)4x-2x=82(491)4.8x-2.6=7(492)17x-7x+15=105(493)6x÷36=0.4(494)4(3x+25)=124(495)5x+80×2=175(496)x+88=167(497)2(1.6x-8.2)=6(498)4x-6×3=118(499)82-x=39(500)37x-10×1.6=2.5(501)46x-21x-3.1=36.9(502)(18x-18)÷9=18(503)2.6x+1.9×7=21.1(504)6x+8x=280(505)2x÷56=3(506)6.4-x=2.7(507)x+36=98(508)7.2+3x=25.2(509)4x-2x-17=55(510)32+23x=147(511)12x+11×10=230(512)2(x+0.8)=7.6(513)x-1.6=2(514)6(0.2x+2)=25.2(515)98÷x=14(516)183-4x=95(517)1.3x+2.4x=22.2(518)7x-1.6x=48.6(519)8.7+20x=26.7(520)12x-8x=40(521)29x-26x+0.5=7.4(522)x-1.1=4(523)x-0.4=2.3(524)3x+3.3=22.8(525)42÷x=21(526)(5x+30)÷45=1(527)5x-3x+33=77(528)(10x+30)÷9=10(529)(18x-18)÷18=9(530)48x-44x+0.4=6(531)1.6x-0.5×10=9.4(532)7x÷49=2(533)47x+49=190(534)31x+25x-2=160.4(535)5x=180(536)9x+19x+5=61(537)8.1+49x=17.9(538)7(x+4)=49(539)x÷17=8(540)12x=13.2参考答案(1)x=0.2(2)x=5(3)x=51(4)x=16(5)x=12(6)x=9.2(7)x=11(8)x=13(9)x=21(10)x=11(11)x=2(12)x=4.4(13)x=28(14)x=30(15)x=12(16)x=38(17)x=4(18)x=3(19)x=5.4(20)x=89(21)x=0.7(22)x=1.7(23)x=74(24)x=77(25)x=3(26)x=0.3(27)x=21(28)x=0.4(29)x=90(30)x=33(31)x=5(32)x=11(33)x=24(34)x=8.2(35)x=21(36)x=98(37)x=31(38)x=71(39)x=11(40)x=17(41)x=5(42)x=70(43)x=56(44)x=65(45)x=2(46)x=6(47)x=7(48)x=10(49)x=24(50)x=1.9(51)x=4(52)x=16(53)x=2(54)x=23(55)x=0.4(56)x=22(57)x=19(58)x=1.5(59)x=2(60)x=78(61)x=71(62)x=7(63)x=8(64)x=14(65)x=0.3(66)x=38(67)x=4(68)x=99(69)x=3(70)x=2(71)x=13(72)x=4(73)x=6(74)x=14(75)x=0.5(76)x=8(77)x=12(78)x=1.5(79)x=1.2(80)x=10(81)x=0.2(82)x=49(83)x=32(84)x=28(85)x=11(86)x=3(87)x=60(88)x=15(89)x=0.7(90)x=0.9(91)x=3(92)x=66(93)x=15(94)x=0.6(95)x=90(96)x=3.3(97)x=1.4(98)x=11(99)x=8(100)x=12(101)x=5(102)x=1.3(103)x=80(104)x=13(105)x=7(106)x=6(107)x=1.1(108)x=9(109)x=1.2(110)x=17(111)x=6(112)x=2(113)x=1.8(114)x=9.6(115)x=2(116)x=16(117)x=7(118)x=2(119)x=5(120)x=12(121)x=0.3(122)x=11(123)x=31(124)x=0.2(125)x=45(126)x=8(127)x=68(128)x=0.6(129)x=15(130)x=9.4(131)x=1.2(132)x=41(133)x=0.5(134)x=2(135)x=26(136)x=16(137)x=0.6(138)x=48(139)x=14(140)x=5(141)x=25(142)x=3(143)x=4(144)x=2.3(145)x=30(146)x=0.9(147)x=13.8(148)x=8.6(149)x=6(150)x=2(151)x=14(152)x=9(153)x=20(154)x=3(155)x=15(156)x=3(157)x=9(158)x=15(159)x=0.5(160)x=47(161)x=48(162)x=3(163)x=7.7(164)x=17(165)x=2.1(166)x=140(167)x=11(168)x=5(169)x=0.8(170)x=2(171)x=0.7(172)x=27(173)x=61(174)x=6.8(175)x=14(176)x=71(177)x=28(178)x=0.5(179)x=45(180)x=8.8(181)x=24(182)x=6(183)x=1(184)x=1.4(185)x=40(186)x=1.3(187)x=90(188)x=19(189)x=2.9(190)x=19(191)x=7(192)x=2(193)x=6(194)x=2.3(195)x=14(196)x=24(197)x=7.8(198)x=19.2(199)x=19.8(200)x=12(201)x=3(202)x=0.6(203)x=14(204)x=10(205)x=7(206)x=14(207)x=32(208)x=48(209)x=7.3(210)x=5.6(211)x=0.2(212)x=4(213)x=55(214)x=9(215)x=0.2(216)x=17(217)x=1.5(218)x=0.2(219)x=72(220)x=14(221)x=1.4(222)x=0.4(223)x=3.4(224)x=2.4(225)x=1.7(226)x=8(227)x=7(228)x=0.9(229)x=5(230)x=13(231)x=32(232)x=6.4(233)x=8.4(234)x=7(235)x=2(236)x=3(237)x=3(238)x=8(239)x=14(240)x=0.5(241)x=12(242)x=40(243)x=16(244)x=5(245)x=4.3(246)x=0.4(247)x=8.1(248)x=21(249)x=18(250)x=1.8(251)x=66(252)x=46(253)x=84(254)x=19(255)x=23(256)x=49(257)x=9(258)x=30(259)x=19(260)x=9(261)x=12(262)x=9(263)x=13.6(264)x=2.9(265)x=6(266)x=3(267)x=9.9(268)x=18(269)x=13(270)x=9(271)x=2(272)x=16(273)x=3(274)x=0.6(275)x=56(276)x=3.4(277)x=10(278)x=10(279)x=1.6(280)x=8(281)x=12(282)x=10(283)x=198(284)x=33(285)x=8(286)x=8(287)x=3(288)x=2(289)x=19(290)x=15(291)x=0.7(292)x=10(293)x=24(294)x=25(295)x=2.5(296)x=0.2(297)x=99(298)x=23(299)x=33(300)x=2.1(301)x=3.2(302)x=4.3(303)x=17(304)x=4(305)x=3(306)x=23(307)x=44(308)x=2(309)x=1.2(310)x=26(311)x=29(312)x=57(313)x=11(314)x=1.1(315)x=0.3(316)x=18(317)x=78(318)x=76(319)x=15(320)x=3(321)x=12(322)x=10(323)x=97(324)x=0.8(325)x=10(326)x=1.4(327)x=5.8(328)x=5(329)x=2(330)x=36(331)x=26(332)x=4(333)x=54(334)x=3.3(335)x=2.5(336)x=78(337)x=17(338)x=6(339)x=8.8(340)x=0.2(341)x=0.2(342)x=8(343)x=11(344)x=10(345)x=28(346)x=4.8(347)x=4(348)x=2(349)x=10(350)x=8(351)x=18(352)x=7(353)x=6(354)x=2(355)x=0.4(356)x=2.9(357)x=7(358)x=11(359)x=2(360)x=5(361)x=7(362)x=5(363)x=3(364)x=5(365)x=19.5(366)x=37(367)x=29(368)x=5.1(369)x=20(370)x=25(371)x=14(372)x=83(373)x=0.6(374)x=1.3(375)x=6(376)x=10(377)x=55(378)x=10(379)x=14(380)x=18(381)x=5(382)x=0.4(383)x=7(384)x=2(385)x=2(386)x=1(387)x=17(388)x=15(389)x=20(390)x=1.2(391)x=4(392)x=99(393)x=31