五年级数学(方程)习题及答案

五年级数学(方程)习题及答案(1)x+14=100(2)x+57=126(3)x+32=63(4)x+38=52(5)x+33=52(6)x+35=82(7)x+98=167(8)x+36=95(9)x+2=61(10)x-26=19(11)x-43=17(12)x-7=39(13)x-17=32(14)x-7=32(15)x-21=51(16)x-44=43(17)x-76=21(18)x-72=13(19)x+5.5=5.9(20)x+5.4=14.4(21)x+8.4=14.2(22)x+7.4=11.8(23)x+8.9=15.7(24)x+6.3=9.3(25)x+0.6=3.7(26)x+3.9=12.8(27)x+8.9=12.3(28)x-0.4=5.2(29)x-3.4=2.6(30)x-3.8=5.4(31)x-3.6=3.1(32)x-3.9=4.5(33)x-2=2.8(34)x-6.5=1.3(35)x-1.3=5.9(36)x-6.9=1.8(37)70+x=103(38)12+x=27(39)72+x=165(40)97+x=167(41)84+x=123(42)22+x=35(43)13+x=21(44)7+x=11(45)18+x=98(46)60-x=40(47)53-x=31(48)86-x=10(49)99-x=18(50)29-x=24(51)93-x=41(52)27-x=16(53)52-x=19(54)45-x=24(55)4.2+x=10.3(56)2.9+x=7.8(57)6+x=14.7(58)3.8+x=7.2(59)3.8+x=13.3(60)7.3+x=16.2(61)0.8+x=7.8(62)0.2+x=2.1(63)2.1+x=4.7(64)6.8-x=2.8(65)6.4-x=6.1(66)9.6-x=3.9(67)6.6-x=3.3(68)7.1-x=4.6(69)3.5-x=2.5(70)7.5-x=4.3(71)7.9-x=2.7(72)9.5-x=8.9(73)7x=112(74)2x=8(75)23x=46(76)19x=190(77)6x=198(78)3x=129(79)17x=85(80)7x=56(81)11x=66(82)0.9x=9.9(83)0.4x=9.6(84)3.9x=7.8(85)2.3x=4.6(86)0.8x=12(87)1.2x=18(88)0.9x=3.6(89)1.4x=14(90)1.3x=3.9(91)2x=3.2(92)38x=15.2(93)81x=16.2(94)38x=11.4(95)11x=18.7(96)2x=6(97)57x=11.4(98)2x=8.4(99)45x=18(100)98÷x=7(101)27÷x=3(102)24÷x=8(103)48÷x=3(104)52÷x=26(105)80÷x=16(106)60÷x=20(107)189÷x=9(108)128÷x=8(109)6÷x=0.6(110)3÷x=0.6(111)12÷x=1.2(112)10.8÷x=0.2(113)7.8÷x=3.9(114)9÷x=1.5(115)10.8÷x=0.6(116)4.2÷x=1.4(117)6÷x=0.5(118)x÷3=40(119)x÷7=13(120)x÷5=4(121)x÷9=2(122)x÷8=7(123)x÷13=5(124)x÷7=3(125)x÷25=4(126)x÷12=10(127)x÷82=0.2(128)x÷10=1.5(129)x÷19=1(130)x÷51=0.3(131)x÷95=0.2(132)x÷33=0.3(133)x÷23=0.5(134)x÷39=0.2(135)x÷5=1.2(136)15x+10=70(137)17x+50=186(138)17x+15=49(139)24x+37=157(140)4x+56=156(141)3x+58=196(142)20x+16=76(143)58x+57=231(144)2x+51=243(145)10x-42=148(146)12x-52=68(147)55x-39=71(148)30x-18=132(149)2x-51=77(150)20x-14=86(151)48x-33=159(152)2x-22=88(153)7x-17=88(154)3x+3.2=7.1(155)74x+5.6=20.4(156)51x+2.2=17.5(157)6x+3=4.2(158)3x+5.8=21.1(159)13x+5=20.6(160)11x+2.5=12.4(161)27x+2.6=8(162)15x+4.2=17.7(163)1.5x+2=21.5(164)9.8x+2.1=21.7(165)0.6x+4.8=18(166)7.1x+4=18.2(167)0.2x+5=14.2(168)1.6x+3.7=13.3(169)5.2x+5=20.6(170)0.3x+2.7=12.3(171)6.7x+1.7=15.1(172)8x-5.3=6.7(173)2x-4.5=12.9(174)37x-3.8=3.6(175)5x-4.1=12.4(176)42x-5.4=7.2(177)18x-4.9=11.3(178)8x-1.7=11.1(179)30x-5.7=9.3(180)12x-3.6=14.4(181)0.6x-2.2=1.4(182)0.3x-2.9=7.3(183)2x-3.9=14.1(184)0.5x-4.8=2.7(185)0.5x-1.3=3.7(186)2x-1.4=12.6(187)1.9x-4.4=7(188)2.3x-5.2=1.7(189)0.4x-5.3=1.5(190)68+2x=126(191)85+20x=165(192)110+2x=138(193)100+3x=202(194)142+5x=247(195)44+23x=182(196)136+4x=196(197)90+31x=183(198)64+19x=216(199)187-4x=39(200)178-5x=128(201)154-3x=115(202)177-19x=120(203)145-62x=21(204)81-7x=67(205)75-2x=65(206)187-60x=67(207)121-19x=26(208)4.7+0.9x=21.8(209)11.3+0.4x=15.7(210)9.8+1.3x=24.1(211)14.7+0.5x=33.2(212)10.9+0.7x=27(213)15.6+0.5x=16.6(214)3.9+0.2x=17.1(215)10+0.9x=11.8(216)8.7+0.3x=16.5(217)3+25x=13(218)12.3+41x=24.6(219)10+38x=29(220)7.5+11x=15.2(221)16.7+7x=20.2(222)6.1+5x=14.1(223)1.8+11x=17.2(224)1.2+12x=14.4(225)4.5+4x=5.3(226)14.1-0.4x=11.7(227)5.1-1x=2.1(228)17-0.4x=13(229)12.6-5.7x=1.2(230)18.8-2.9x=13(231)13.8-2.4x=6.6(232)18.3-3.5x=4.3(233)15.2-0.3x=3.8(234)16.6-1.3x=7.5(235)18-4x=1.2(236)13-14x=3.2(237)13.1-2x=12.3(238)17.1-12x=12.3(239)16.3-2x=11.9(240)10.2-3x=2.1(241)13.4-2x=1(242)15.4-4x=1.4(243)18.1-31x=5.7(244)6x÷51=2(245)30x÷10=15(246)54x÷4=27(247)39x÷9=13(248)2x÷27=6(249)7x÷21=4(250)42x÷56=3(251)4x÷62=2(252)24x÷2=48(253)0.2x÷26=0.5(254)0.4x÷16=0.9(255)1.2x÷8=0.3(256)4.2x÷7=1.8(257)0.6x÷2=3.6(258)3x÷18=1(259)0.6x÷4=3(260)1.6x÷4=2(261)2.8x÷56=0.3(262)80x÷8=2(263)5x÷30=0.2(264)22x÷88=0.2(265)16x÷4=3.2(266)18x÷42=0.3(267)18x÷3=3(268)2x÷6=2.6(269)46x÷23=0.8(270)20x÷45=0.4(271)19x+3x=44(272)7x+5x=204(273)8x+4x=168(274)3x+6x=72(275)13x+12x=375(276)3x+18x=231(277)12x+16x=84(278)4x+7x=154(279)12x+7x=304(280)15x-11x=36(281)12x-9x=45(282)19x-13x=12(283)4x-2x=80(284)19x-10x=36(285)8x-3x=25(286)5x-3x=76(287)7x-2x=105(288)12x-3x=45(289)4.3x+7.7x=84(290)1.3x+8.8x=111.1(291)1.5x+2.2x=92.5(292)1.7x+3.6x=84.8(293)8.4x+1x=65.8(294)8.3x+3.5x=23.6(295)2.8x+4.1x=89.7(296)0.8x+0.4x=8.4(297)2.5x+1.4x=74.1(298)9.6x-1.1x=25.5(299)1.8x-0.9x=34.2(300)8.3x-1x=87.6(301)8.6x-5.6x=33(302)7.5x-5.2x=13.8(303)3.1x-1.3x=5.4(304)6.5x-5.2x=2.6(305)3.9x-2.6x=5.2(306)5.8x-1.1x=65.8(307)18x+17x+15=295(308)14x+17x+30=216(309)4x+6x+22=152(310)10x+7x+35=188(311)11x+5x+20=228(312)9x+8x+48=422(313)6x+5x+17=116(314)15x+19x+37=275(315)8x+4x+44=212(316)6x+3x-28=125(317)4x+5x-28=134(318)8x+5x-32=254(319)3x+5x-33=247(320)8x+19x-27=54(321)2x+3x-28=62(322)19x+16x-9=131(323)9x+3x-39=153(324)11x+13x-17=343(325)13x-6x+45=94(326)15x-9x+49=85(327)11x-7x+35=75(328)6x-2x+14=42(329)7x-2x+40=150(330)18x-9x+9=99(331)10x-7x+19=55(332)19x-12x+24=87(333)9x-2x+3=73(334)18x-3x-7=158(335)16x-5x-24=42(336)12x-8x-19=41(337)11x-6x-19=56(338)8x-5x-26=43(339)19x-3x-10=22(340)6x-3x-41=22(341)10x-6x-45=11(342)16x-8x-19=37(343)7.2x+7.4x+1.1=147.1(344)2.3x+2.4x+1.1=156.2(345)3.4x+3.1x+3.3=172.3(346)0.5x+1.2x+4.3=62.1(347)0.8x+9.8x+1.7=33.5(348)7.1x+6.2x+1.2=187.4(349)1.3x+2.2x+0.9=56.9(350)4.9x+2.8x+2.7=18.1(351)3.6x+0.6x+3.7=24.7(352)59x+81x+3.4=143.4(353)60x+97x+1.2=142.5(354)53x+83x+0.2=149.8(355)72x+18x+4.4=22.4(356)11x+99x+1.8=78.8(357)22x+10x+1.7=78.5(358)39x+35x+4.2=152.2(359)80x+18x+4.3=23.9(360)94x+69x+0.5=82(361)1.3x+1.5x-4.8=51.2(362)2.1x+2.7x-1=71(363)8.6x+1.5x-3.2=47.3(364)4.4x+5.5x-1.5=107.4(365)1.6x+4.5x-1.2=53.7(366)0.7x+1x-2.7=119.7(367)7.7x+9x-1.6=98.6(368)2.1x+3.4x-3.5=145(369)9.5x+8.3x-1.5=87.5(370)40x+23x-4.3=146.9(371)55x+84x-0.4=55.2(372)48x+81x-1.2=153.6(373)64x+63x-0.5=164.6(374)73x+79x-1.4=59.4(375)22x+3x-3=77(376)25x+53x-0.6=38.4(377)46x+10x-1.2=10(378)70x+52x-3.1=167.7(379)6.1x-2.7x+4.2=31.4(380)4.2x-3.3x+4.8=24.6(381)1.4x-0.7x+0.4=3.2(382)7.8x-2x+1.6=42.2(383)9.9x-9.3x+0.5=3.5(384)7.7x-6.4x+0.2=5.4(385)2.8x-0.5x+2.3=80.5(386)3.4x-3.2x+3.8=8.2(387)5.9x-4.7x+4.1=17.3(388)47x-11x+4.5=62.1(389)85x-25x+3.7=51.7(390)78x-38x+4.6=40.6(391)21x-14x+2.2=10.6(392)97x-56x+3.5=28.1(393)42x-33x+0.5=5(394)33x-22x+1.9=8.5(395)20x-11x+2=41.6(396)24x-18x+1.8=26.4(397)4.4x-3.2x-3.7=17.9(398)8x-0.6x-1.8=13(399)7.3x-0.8x-4.2=15.3(400)8x-6.3x-1.9=3.2(401)3.5x-2x-1.3=27.2(402)0.9x-0.7x-0.8=1.6(403)2.2x-0.6x-3.5=25.3(404)7x-4.8x-2.3=15.3(405)1.6x-1.1x-0.5=23.5(406)50x-11x-1.1=65.2(407)48x-15x-1.3=21.8(408)78x-18x-4.2=43.8(409)11x-3x-4.9=7.1(410)93x-51x-1.3=11.3(411)12x-2x-4=49(412)8x-5x-1.6=1.1(413)88x-84x-2.2=1.4(414)52x-14x-4=45.4(415)19x+96×2=306(416)14x+22×6=300(417)19x+59×2=156(418)6x+77×2=256(419)4x+4×25=156(420)3x+42×2=258(421)9x+81×2=288(422)14x+23×7=189(423)7x+11×15=186(424)28x-12×5=24(425)25x-3×15=55(426)13x-41×3=72(427)8x-20×2=48(428)4x-33×2=74(429)6x-30×3=24(430)3x-76×2=43(431)6x-2×4=70(432)3x-5×24=33(433)1.7x+1×18=31.6(434)1.7x+1.6×6=23.2(435)1x+0.5×11=18.5(436)2.5x+0.3×25=20(437)1.8x+2.9×2=16.6(438)4.3x+0.6×27=24.8(439)3.9x+0.4×33=28.8(440)1.7x+1.6×2=6.6(441)0.5x+1.3×9=18.7(442)12x+20×0.5=18.4(443)5x+18×0.2=6.6(444)11x+21×0.4=26(445)9x+4×0.9=9.9(446)10x+15×0.5=15.5(447)40x+2×0.4=20.8(448)40x+4×3.3=21.2(449)5x+6×1.9=29.9(450)20x+10×1.6=24(451)0.9x-0.2×36=1.8(452)3.2x-3.5×2=12.2(453)0.3x-0.3×27=5.4(454)0.4x-0.7×6=5.4(455)3x-0.4×16=8.6(456)2.7x-0.3×8=13.8(457)0.8x-2.7×4=6(458)0.5x-0.7×2=9.6(459)1.9x-2.3×3=8.3(460)46x-23×0.3=2.3(461)5x-20×0.5=9.5(462)47x-4×0.8=10.9(463)43x-12×0.2=6.2(464)3x-4×1.8=2.4(465)20x-22×0.2=5.6(466)24x-12×1=7.2(467)12x-3×0.4=12(468)3x-6×0.2=2.1(469)3(2x+20)=126(470)3(x+34)=135(471)2(13x+13)=78(472)4(2x+5)=108(473)2(2x+15)=158(474)2(19x+28)=170(475)11(x+4)=66(476)2(7x+38)=104(477)3(x+10)=78(478)6(3x-19)=138(479)5(x-24)=80(480)4(3x-46)=200(481)2(15x-43)=94(482)3(5x-49)=33(483)2(6x-6)=24(484)3(28x-37)=141(485)6(x-9)=162(486)17(x-32)=187(487)3(3.8x+6.7)=42.9(488)2(6.4x+4.3)=47(489)7(0.4x+1.9)=32.9(490)3(0.6x+3.8)=38.4(491)7(0.2x+0.4)=37.8(492)3(1.2x+4.2)=30.6(493)3(1.1x+4.9)=31.2(494)12(0.2x+1.4)=26.4(495)5(0.7x+1.8)=33.5(496)13(0.3x-9)=27.3(497)11(x-4.9)=34.1(498)2(3.2x-6)=26.4(499)20(2.4x-5.5)=34(500)4(2.3x-5.8)=13.6(501)16(0.7x-7.4)=49.6(502)6(0.6x-2.1)=27(503)8(0.3x-5)=17.6(504)5(0.3x-1.8)=45(505)(15x+5)÷7=5(506)(11x+49)÷41=2(507)(x+26)÷35=1(508)(2x+6)÷3=20(509)(12x+18)÷10=21(510)(9x+33)÷15=7(511)(10x+32)÷38=4(512)(9x+23)÷2=52(513)(2x+8)÷24=2(514)(15x-21)÷29=6(515)(13x-29)÷2=31(516)(2x-16)÷10=2(517)(8x-14)÷10=21(518)(5x-20)÷10=4(519)(10x-5)÷25=7(520)(11x-41)÷28=6(521)(14x-26)÷32=4(522)(5x-19)÷7=18(523)(5.1x+1.2)÷3=27.6(524)(5.2x+2.8)÷8=10.1(525)(5.7x+1.5)÷7=10.8(526)(2.7x+4.1)÷14=2.8(527)(6.5x+5.5)÷8=8(528)(2.2x+0.6)÷10=0.5(529)(0.5x+1.7)÷3=1.9(530)(3.4x+8.9)÷5=14.7(531)(1.9x+3.5)÷2=10.3(532)(4.3x-8.2)÷8=2.2(533)(9.4x-3.3)÷3=27.1(534)(4.6x-7.8)÷2=37.5(535)(2.7x-5.3)÷17=0.8(536)(7.4x-7.8)÷9=9(537)(5.3x-5)÷15=3.2(538)(4.1x-7.2)÷14=3(539)(7.7x-8.2)÷2=19(540)(1.1x-8.4)÷19=0.6参考答案(1)x=86(2)x=69(3)x=31(4)x=14(5)x=19(6)x=47(7)x=69(8)x=59(9)x=59(10)x=45(11)x=60(12)x=46(13)x=49(14)x=39(15)x=72(16)x=87(17)x=97(18)x=85(19)x=0.4(20)x=9(21)x=5.8(22)x=4.4(23)x=6.8(24)x=3(25)x=3.1(26)x=8.9(27)x=3.4(28)x=5.6(29)x=6(30)x=9.2(31)x=6.7(32)x=8.4(33)x=4.8(34)x=7.8(35)x=7.2(36)x=8.7(37)x=33(38)x=15(39)x=93(40)x=70(41)x=39(42)x=13(43)x=8(44)x=4(45)x=80(46)x=20(47)x=22(48)x=76(49)x=81(50)x=5(51)x=52(52)x=11(53)x=33(54)x=21(55)x=6.1(56)x=4.9(57)x=8.7(58)x=3.4(59)x=9.5(60)x=8.9(61)x=7(62)x=1.9(63)x=2.6(64)x=4(65)x=0.3(66)x=5.7(67)x=3.3(68)x=2.5(69)x=1(70)x=3.2(71)x=5.2(72)x=0.6(73)x=16(74)x=4(75)x=2(76)x=10(77)x=33(78)x=43(79)x=5(80)x=8(81)x=6(82)x=11(83)x=24(84)x=2(85)x=2(86)x=15(87)x=15(88)x=4(89)x=10(90)x=3(91)x=1.6(92)x=0.4(93)x=0.2(94)x=0.3(95)x=1.7(96)x=3(97)x=0.2(98)x=4.2(99)x=0.4(100)x=14(101)x=9(102)x=3(103)x=16(104)x=2(105)x=5(106)x=3(107)x=21(108)x=16(109)x=10(110)x=5(111)x=10(112)x=54(113)x=2(114)x=6(115)x=18(116)x=3(117)x=12(118)x=120(119)x=91(120)x=20(121)x=18(122)x=56(123)x=65(124)x=21(125)x=100(126)x=120(127)x=16.4(128)x=15(129)x=19(130)x=15.3(131)x=19(132)x=9.9(133)x=11.5(134)x=7.8(135)x=6(136)x=4(137)x=8(138)x=2(139)x=5(140)x=25(141)x=46(142)x=3(143)x=3(144)x=96(145)x=19(146)x=10(147)x=2(148)x=5(149)x=64(150)x=5(151)x=4(152)x=55(153)x=15(154)x=1.3(155)x=0.2(156)x=0.3(157)x=0.2(158)x=5.1(159)x=1.2(160)x=0.9(161)x=0.2(162)x=0.9(163)x=13(164)x=2(165)x=22(166)x=2(167)x=46(168)x=6(169)x=3(170)x=32(171)x=2(172)x=1.5(173)x=8.7(174)x=0.2(175)x=3.3(176)x=0.3(177)x=0.9(178)x=1.6(179)x=0.5(180)x=1.5(181)x=6(182)x=34(183)x=9(184)x=15(185)x=10(186)x=7(187)x=6(188)x=3(189)x=17(190)x=29(191)x=4(192)x=14(193)x=34(194)x=21(195)x=6(196)x=15(197)x=3(198)x=8(199)x=37(200)x=10(201)x=13(202)x=3(203)x=2(204)x=2(205)x=5(206)x=2(207)x=5(208)x=19(209)x=11(210)x=11(211)x=37(212)x=23(213)x=2(214)x=66(215)x=2(216)x=26(217)x=0.4(218)x=0.3(219)x=0.5(220)x=0.7(221)x=0.5(222)x=1.6(223)x=1.4(224)x=1.1(225)x=0.2(226)x=6(227)x=3(228)x=10(229)x=2(230)x=2(231)x=3(232)x=4(233)x=38(234)x=7(235)x=4.2(236)x=0.7(237)x=0.4(238)x=0.4(239)x=2.2(240)x=2.7(241)x=6.2(242)x=3.5(243)x=0.4(244)x=17(245)x=5(246)x=2(247)x=3(248)x=81(249)x=12(250)x=4(251)x=31(252)x=4(253)x=65(254)x=36(255)x=2(256)x=3(257)x=12(258)x=6(259)x=20(260)x=5(261)x=6(262)x=0.2(263)x=1.2(264)x=0.8(265)x=0.8(266)x=0.7(267)x=0.5(268)x=7.8(269)x=0.4(270)x=0.9(271)x=2(272)x=17(273)x=14(274)x=8(275)x=15(276)x=11(277)x=3(278)x=14(279)x=16(280)x=9(281)x=15(282)x=2(283)x=40(284)x=4(285)x=5(286)x=38(287)x=21(288)x=5(289)x=7(290)x=11(291)x=25(292)x=16(293)x=7(294)x=2(295)x=13(296)x=7(297)x=19(298)x=3(299)x=38(300)x=12(301)x=11(302)x=6(303)x=3(304)x=2(305)x=4(306)x=14(307)x=8(308)x=6(309)x=13(310)x=9(311)x=13(312)x=22(313)x=9(314)x=7(315)x=14(316)x=17(317)x=18(318)x=22(319)x=35(320)x=3(321)x=18(322)x=4(323)x=16(324)x=15(325)x=7(326)x=6(327)x=10(328)x=7(329)x=22(330)x=10(331)x=12(332)x=9(333)x=10(334)x=11(335)x=6(336)x=15(337)x=15(338)x=23(339)x=2(340)x=21(341)x=14(342)x=7(343)x=10(344)x=33(345)x=26(346)x=34(347)x=3(348)x=14(349)x=16(350)x=2(351)x=5(352)x=1(353)x=0.9(354)x=1.1(355)x=0.2(356)x=0.7(357)x=2.4(358)x=2(359)x=0.2(360)x=0.5(361)x=20(362)x=15(363)x=5(364)x=11(365)x=9(366)x=72(367)x=6(368)x=27(369)x=5(370)x=2.4(371)x=0.4(372)x=1.2(373)x=1.3(374)x=0.4(375)x=3.2(376)x=0.5(377)x=0.2(378)x=1.4(379)x=8(380)x=22(381)x=4(382)x=7(383)x=5(384)x=4(385)x=34(386)x=22(387)x=11(388)x=1.6(389)x=0.8(390)x=0.9(391)x=1.2(392)x=0.6(39