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+53=97(2)x+80=124(3)x+79=173(4)x+25=63(5)x+6=93(6)x+60=100(7)x+9=23(8)x+95=155(9)x+6=64(10)x-9=23(11)x-38=35(12)x-11=22(13)x-30=68(14)x-48=21(15)x-61=16(16)x-40=23(17)x-37=24(18)x-52=43(19)x+5.8=8.2(20)x+8.5=15(21)x+1.9=7.2(22)x+8.2=11.3(23)x+2.2=3.8(24)x+3.1=11.8(25)x+5.2=14(26)x+3.1=10(27)x+0.9=9.1(28)x-1=2.4(29)x-2.2=2.8(30)x-3.9=2.3(31)x-5.2=4.1(32)x-1.1=1.9(33)x-5.8=3.3(34)x-2.6=4.2(35)x-1.1=4.7(36)x-0.7=1.8(37)74+x=143(38)8+x=78(39)87+x=169(40)86+x=92(41)37+x=113(42)84+x=173(43)38+x=61(44)71+x=88(45)73+x=136(46)62-x=31(47)93-x=45(48)80-x=71(49)53-x=28(50)45-x=17(51)56-x=42(52)37-x=29(53)97-x=85(54)65-x=51(55)5.5+x=11.3(56)5.7+x=12(57)8.4+x=11.9(58)5.4+x=7.7(59)0.8+x=6.5(60)1.9+x=7.7(61)0.7+x=8.5(62)5.2+x=10.9(63)1+x=6.2(64)8.4-x=2.3(65)9.7-x=1.4(66)8.5-x=2.9(67)7.5-x=1.7(68)4.2-x=1.8(69)3.8-x=1.2(70)2.6-x=2.1(71)7.4-x=1(72)8.2-x=4.9(73)3x=132(74)2x=134(75)3x=54(76)15x=195(77)54x=162(78)2x=68(79)11x=143(80)16x=96(81)5x=40(82)0.9x=6.3(83)0.2x=8(84)1.6x=3.2(85)0.4x=17.6(86)0.6x=12.6(87)2.2x=19.8(88)0.5x=18(89)0.6x=3.6(90)0.3x=8.1(91)23x=16.1(92)18x=19.8(93)36x=10.8(94)24x=4.8(95)3x=17.4(96)6x=12.6(97)33x=19.8(98)4x=6(99)3x=17.7(100)138÷x=6(101)140÷x=35(102)105÷x=7(103)100÷x=10(104)99÷x=33(105)158÷x=2(106)52÷x=4(107)38÷x=19(108)176÷x=4(109)5.2÷x=2.6(110)16.8÷x=1.4(111)3.5÷x=0.5(112)14.8÷x=0.4(113)4.6÷x=2.3(114)5÷x=0.2(115)8.4÷x=0.7(116)8.4÷x=2.1(117)15.5÷x=3.1(118)x÷6=14(119)x÷14=10(120)x÷4=36(121)x÷18=2(122)x÷2=48(123)x÷2=22(124)x÷25=2(125)x÷2=12(126)x÷5=20(127)x÷24=0.5(128)x÷6=3(129)x÷31=0.5(130)x÷26=0.4(131)x÷18=0.8(132)x÷40=0.4(133)x÷18=0.9(134)x÷44=0.3(135)x÷5=3.4(136)3x+29=203(137)9x+22=94(138)8x+28=228(139)11x+49=192(140)4x+58=90(141)5x+27=77(142)64x+33=225(143)2x+14=90(144)3x+34=154(145)6x-12=36(146)3x-20=10(147)8x-42=150(148)19x-31=83(149)21x-18=24(150)6x-23=85(151)10x-28=62(152)5x-30=125(153)4x-57=15(154)2x+5.2=21.2(155)13x+2.1=11.2(156)17x+3.6=18.9(157)2x+5.9=13.1(158)2x+5.1=12.1(159)12x+5=18.2(160)5x+3.7=15.7(161)4x+1=20.6(162)32x+3.4=13(163)1.5x+2.1=5.1(164)0.4x+3.2=6.4(165)8.5x+3.1=20.1(166)3.1x+1.7=7.9(167)0.3x+3.5=18.2(168)0.4x+3.4=21.8(169)0.2x+3.1=15.9(170)1.3x+5.6=10.8(171)0.5x+3.1=18.1(172)2x-1.4=3.8(173)15x-2.6=4.9(174)17x-4.8=12.2(175)36x-5.2=5.6(176)7x-5.4=7.9(177)6x-5.2=7.4(178)2x-5.8=1.4(179)43x-4.7=12.5(180)47x-3.4=6(181)3x-5=13(182)3x-2.7=6.3(183)0.3x-4.7=10.6(184)0.8x-5=3.8(185)2.6x-2.6=10.4(186)0.4x-4.1=10.7(187)2.4x-5=14.2(188)0.7x-5.4=12.1(189)0.3x-1.8=6(190)102+8x=286(191)131+7x=236(192)120+16x=184(193)155+2x=263(194)37+11x=191(195)52+47x=240(196)152+4x=232(197)101+8x=213(198)29+25x=229(199)138-13x=112(200)165-3x=156(201)182-15x=47(202)143-2x=83(203)194-11x=106(204)173-26x=95(205)196-5x=111(206)184-14x=142(207)172-69x=34(208)2.9+1x=8.9(209)12.1+0.8x=28.1(210)10.3+0.3x=15.7(211)9.6+0.2x=20.4(212)9.5+5x=24.5(213)3.3+0.8x=16.9(214)15.3+0.3x=30(215)13+0.8x=30.6(216)15.2+0.3x=32.3(217)3.8+20x=13.8(218)8.9+3x=14.3(219)8.2+16x=24.2(220)19.5+39x=27.3(221)13.1+13x=20.9(222)8.8+5x=26.8(223)5.1+5x=11.6(224)3.9+8x=11.1(225)4+12x=10(226)1.9-0.2x=1.5(227)15.3-0.2x=6.1(228)17.5-0.8x=9.5(229)16.1-3.4x=5.9(230)7.2-0.6x=5.4(231)16.9-1.9x=7.4(232)19.3-4.2x=10.9(233)13-2.5x=5.5(234)16-3.7x=4.9(235)15.1-11x=7.4(236)18.9-21x=6.3(237)17.3-12x=14.9(238)16.3-5x=14.3(239)18.4-3x=10.9(240)19.1-7x=12.1(241)11.2-3x=4(242)19.8-66x=6.6(243)16.6-78x=1(244)30x÷10=12(245)18x÷9=4(246)6x÷24=8(247)66x÷18=11(248)5x÷55=3(249)21x÷2=42(250)3x÷16=12(251)4x÷9=20(252)45x÷12=15(253)1.8x÷14=0.9(254)0.8x÷6=2(255)0.7x÷35=0.3(256)1.1x÷8=2.2(257)0.6x÷60=0.2(258)0.7x÷4=3.5(259)0.2x÷38=0.4(260)1x÷40=0.3(261)0.3x÷18=1.1(262)6x÷3=0.4(263)68x÷34=0.4(264)16x÷24=0.6(265)14x÷26=0.7(266)76x÷4=3.8(267)9x÷30=0.6(268)21x÷56=0.3(269)22x÷11=1.6(270)3x÷6=0.4(271)8x+7x=135(272)7x+4x=209(273)11x+6x=204(274)9x+5x=168(275)10x+11x=147(276)8x+13x=126(277)2x+4x=180(278)16x+5x=42(279)2x+4x=246(280)19x-11x=72(281)19x-10x=72(282)9x-3x=126(283)8x-4x=12(284)18x-14x=40(285)15x-3x=120(286)6x-3x=69(287)16x-9x=56(288)10x-7x=42(289)9.1x+6.3x=154(290)7.6x+2.2x=107.8(291)1.4x+1.7x=49.6(292)1.2x+1.3x=172.5(293)3.4x+0.3x=25.9(294)8.2x+1.7x=29.7(295)0.9x+5x=17.7(296)2.8x+1.6x=132(297)2.9x+2.8x=45.6(298)7.6x-3x=36.8(299)2.5x-0.3x=72.6(300)9.8x-1.7x=72.9(301)2.8x-2x=21.6(302)6.6x-5.1x=12(303)7.8x-2x=63.8(304)8.3x-0.4x=15.8(305)0.9x-0.5x=2.4(306)9.6x-3.9x=11.4(307)13x+6x+33=109(308)8x+9x+41=415(309)6x+11x+28=62(310)4x+14x+33=267(311)16x+5x+42=168(312)5x+8x+30=82(313)9x+6x+15=90(314)17x+9x+43=303(315)10x+6x+17=321(316)18x+19x-33=300(317)4x+5x-28=89(318)18x+16x-32=70(319)7x+4x-47=52(320)2x+4x-17=277(321)2x+3x-20=230(322)9x+14x-42=119(323)13x+15x-36=244(324)2x+10x-7=209(325)13x-4x+45=108(326)6x-2x+11=103(327)13x-9x+11=55(328)15x-2x+36=127(329)15x-4x+42=130(330)14x-4x+14=34(331)15x-2x+10=62(332)9x-4x+40=90(333)17x-3x+19=75(334)8x-4x-15=85(335)10x-4x-47=67(336)11x-4x-32=73(337)6x-3x-5=37(338)18x-4x-27=15(339)17x-3x-9=61(340)16x-11x-48=12(341)12x-9x-22=20(342)7x-2x-2=23(343)5x+8.5x+4.9=31.9(344)3.7x+9x+1.5=115.8(345)8.3x+4.2x+0.4=150.4(346)4.2x+2.6x+2.3=97.5(347)2.5x+8.4x+4.1=80.4(348)0.3x+5x+3.8=78(349)3.3x+2.8x+2.1=26.5(350)3.4x+0.4x+1.1=65.7(351)1.1x+1.9x+3=156(352)35x+28x+1.2=32.7(353)51x+46x+1.6=118(354)16x+14x+2.7=164.7(355)38x+28x+1.6=120.4(356)96x+82x+0.3=107.1(357)87x+33x+0.9=60.9(358)38x+52x+2.5=83.5(359)93x+57x+0.7=105.7(360)63x+34x+1.1=98.1(361)1.1x+0.5x-0.3=2.9(362)0.7x+8.1x-2.6=94.2(363)3x+2.3x-0.5=110.8(364)5.3x+6.4x-4.1=159.7(365)4.7x+3.1x-3.4=74.6(366)1.8x+8x-4.9=93.1(367)3.2x+5.8x-1.1=115.9(368)0.6x+1.6x-4.9=34.7(369)4.1x+7.8x-2.6=80.7(370)70x+49x-1.7=164.9(371)33x+22x-3.9=133.6(372)63x+41x-0.9=19.9(373)17x+68x-1.4=58.1(374)53x+18x-3.5=103(375)69x+33x-3.8=67.6(376)19x+36x-3.8=133.7(377)93x+36x-1.5=50.1(378)12x+79x-1.7=52.9(379)8.2x-1.7x+2.5=22(380)6.5x-2.7x+0.4=19.4(381)4.3x-0.5x+1.9=32.3(382)1.1x-0.7x+1.5=10.3(383)8.7x-1.4x+4.7=48.5(384)5.9x-5.6x+0.5=1.7(385)1x-0.4x+2.8=28.6(386)5.7x-2.8x+3=52.3(387)7x-0.2x+0.5=82.1(388)77x-8x+3.6=86.4(389)14x-11x+2=20.6(390)38x-25x+1.2=29.8(391)66x-46x+0.6=26.6(392)24x-3x+2.8=32.2(393)67x-15x+2.6=23.4(394)45x-25x+3.9=35.9(395)61x-57x+1.9=7.1(396)92x-85x+4.9=7(397)9.3x-6.6x-2.1=8.7(398)6x-0.2x-0.7=74.7(399)8x-2.1x-4.5=54.5(400)8.2x-1.4x-4.7=8.9(401)8x-3.4x-3.6=42.4(402)3.2x-2.4x-2.2=9.8(403)6.9x-5x-4.5=8.8(404)2.9x-2.2x-3.8=2.5(405)3.7x-2.8x-3.6=5.4(406)46x-3x-4.7=85.6(407)9x-7x-3.4=13(408)55x-10x-4=77(409)41x-20x-0.2=39.7(410)35x-20x-3.6=21.9(411)79x-56x-2.5=13.6(412)52x-31x-2.5=5.9(413)46x-32x-3.9=8.7(414)16x-2x-3=46(415)26x+80×2=238(416)7x+3×36=290(417)20x+5×39=295(418)5x+53×3=294(419)10x+3×36=298(420)2x+5×20=106(421)27x+9×14=315(422)2x+3×48=288(423)13x+3×29=165(424)2x-4×37=50(425)7x-7×11=63(426)11x-5×24=56(427)3x-6×3=99(428)8x-4×47=12(429)3x-28×2=28(430)5x-36×4=51(431)6x-14×11=32(432)14x-2×27=16(433)0.4x+0.5×40=33.2(434)0.2x+0.4×15=9(435)0.9x+0.7×20=30.2(436)0.3x+3.2×5=23.2(437)0.8x+0.3×35=30.5(438)0.4x+0.8×25=31.6(439)2.8x+1.2×9=22(440)0.8x+4.8×2=27.2(441)1.8x+0.7×4=13.6(442)9x+42×0.3=18.9(443)46x+5×0.6=21.4(444)23x+48×0.2=18.8(445)9x+2×4.6=11.9(446)2x+4×2.1=10.8(447)3x+9×0.5=9.3(448)5x+35×0.4=30(449)2x+10×0.8=13.2(450)29x+4×0.5=16.5(451)0.3x-2.6×4=3.7(452)0.4x-0.3×21=4.9(453)4.2x-0.2×34=1.6(454)3.5x-3.9×2=6.2(455)1.8x-0.3×38=8.4(456)1.8x-0.6×2=11.4(457)0.3x-0.5×7=4.3(458)0.2x-1.6×3=1.8(459)3.1x-3.2×3=9(460)11x-3×0.6=3.7(461)29x-32×0.2=5.2(462)10x-2×1.4=8.2(463)5x-5×0.2=7.5(464)18x-21×0.4=9.6(465)5x-10×0.7=12(466)11x-3×1=13.5(467)6x-12×0.7=4.8(468)6x-33×0.3=5.1(469)3(7x+9)=90(470)3(2x+7)=63(471)2(2x+34)=116(472)3(2x+40)=198(473)2(3x+23)=112(474)2(3x+4)=44(475)2(3x+11)=160(476)2(11x+20)=106(477)2(5x+35)=160(478)4(3x-19)=116(479)6(23x-46)=138(480)2(27x-49)=64(481)2(x-21)=22(482)5(19x-46)=150(483)17(3x-41)=170(484)5(x-13)=55(485)10(2x-7)=150(486)3(x-16)=45(487)3(0.7x+2.3)=17.4(488)2(0.9x+9.6)=28.2(489)2(x+4.8)=35.6(490)11(0.6x+0.3)=36.3(491)3(0.4x+4.3)=34.5(492)7(0.2x+0.3)=49.7(493)10(0.2x+1.9)=37(494)2(0.5x+1.3)=4.6(495)4(0.4x+0.7)=49.2(496)5(2.3x-9.4)=45(497)3(2.4x-4.4)=37.2(498)8(0.4x-9.2)=16(499)3(0.5x-8.7)=39.9(500)7(1.1x-7.6)=31.5(501)2(1.2x-3.3)=43.8(502)7(1.2x-9.6)=33.6(503)6(0.6x-4.9)=35.4(504)2(9.7x-9)=40.2(505)(12x+20)÷26=10(506)(9x+20)÷4=50(507)(2x+17)÷31=1(508)(16x+12)÷2=46(509)(11x+35)÷2=78(510)(19x+11)÷2=110(511)(8x+48)÷15=16(512)(2x+24)÷2=20(513)(18x+34)÷4=67(514)(8x-6)÷14=7(515)(3x-38)÷46=1(516)(8x-20)÷2=82(517)(16x-30)÷2=41(518)(15x-22)÷2=19(519)(8x-6)÷2=97(520)(8x-40)÷3=64(521)(7x-45)÷4=22(522)(16x-28)÷14=14(523)(0.6x+8.8)÷4=2.5(524)(0.5x+2)÷10=0.8(525)(2.7x+2.4)÷20=1.2(526)(6.8x+7.4)÷5=4.2(527)(7.7x+2.8)÷7=2.6(528)(7.5x+8.7)÷3=27.9(529)(4.3x+8.2)÷2=38.5(530)(9.1x+5.7)÷3=20.1(531)(9.9x+3.6)÷2=41.4(532)(3.9x-9.3)÷19=3(533)(5.4x-7.8)÷12=0.7(534)(8.8x-2.8)÷4=10.3(535)(4.8x-6)÷12=2.7(536)(2.9x-2.3)÷33=1.6(537)(7.9x-6.2)÷2=28.5(538)(4.4x-2)÷3=18.4(539)(4.9x-9.3)÷10=7.4(540)(4.9x-7.3)÷2=23.3参考答案(1)x=44(2)x=44(3)x=94(4)x=38(5)x=87(6)x=40(7)x=14(8)x=60(9)x=58(10)x=32(11)x=73(12)x=33(13)x=98(14)x=69(15)x=77(16)x=63(17)x=61(18)x=95(19)x=2.4(20)x=6.5(21)x=5.3(22)x=3.1(23)x=1.6(24)x=8.7(25)x=8.8(26)x=6.9(27)x=8.2(28)x=3.4(29)x=5(30)x=6.2(31)x=9.3(32)x=3(33)x=9.1(34)x=6.8(35)x=5.8(36)x=2.5(37)x=69(38)x=70(39)x=82(40)x=6(41)x=76(42)x=89(43)x=23(44)x=17(45)x=63(46)x=31(47)x=48(48)x=9(49)x=25(50)x=28(51)x=14(52)x=8(53)x=12(54)x=14(55)x=5.8(56)x=6.3(57)x=3.5(58)x=2.3(59)x=5.7(60)x=5.8(61)x=7.8(62)x=5.7(63)x=5.2(64)x=6.1(65)x=8.3(66)x=5.6(67)x=5.8(68)x=2.4(69)x=2.6(70)x=0.5(71)x=6.4(72)x=3.3(73)x=44(74)x=67(75)x=18(76)x=13(77)x=3(78)x=34(79)x=13(80)x=6(81)x=8(82)x=7(83)x=40(84)x=2(85)x=44(86)x=21(87)x=9(88)x=36(89)x=6(90)x=27(91)x=0.7(92)x=1.1(93)x=0.3(94)x=0.2(95)x=5.8(96)x=2.1(97)x=0.6(98)x=1.5(99)x=5.9(100)x=23(101)x=4(102)x=15(103)x=10(104)x=3(105)x=79(106)x=13(107)x=2(108)x=44(109)x=2(110)x=12(111)x=7(112)x=37(113)x=2(114)x=25(115)x=12(116)x=4(117)x=5(118)x=84(119)x=140(120)x=144(121)x=36(122)x=96(123)x=44(124)x=50(125)x=24(126)x=100(127)x=12(128)x=18(129)x=15.5(130)x=10.4(131)x=14.4(132)x=16(133)x=16.2(134)x=13.2(135)x=17(136)x=58(137)x=8(138)x=25(139)x=13(140)x=8(141)x=10(142)x=3(143)x=38(144)x=40(145)x=8(146)x=10(147)x=24(148)x=6(149)x=2(150)x=18(151)x=9(152)x=31(153)x=18(154)x=8(155)x=0.7(156)x=0.9(157)x=3.6(158)x=3.5(159)x=1.1(160)x=2.4(161)x=4.9(162)x=0.3(163)x=2(164)x=8(165)x=2(166)x=2(167)x=49(168)x=46(169)x=64(170)x=4(171)x=30(172)x=2.6(173)x=0.5(174)x=1(175)x=0.3(176)x=1.9(177)x=2.1(178)x=3.6(179)x=0.4(180)x=0.2(181)x=6(182)x=3(183)x=51(184)x=11(185)x=5(186)x=37(187)x=8(188)x=25(189)x=26(190)x=23(191)x=15(192)x=4(193)x=54(194)x=14(195)x=4(196)x=20(197)x=14(198)x=8(199)x=2(200)x=3(201)x=9(202)x=30(203)x=8(204)x=3(205)x=17(206)x=3(207)x=2(208)x=6(209)x=20(210)x=18(211)x=54(212)x=3(213)x=17(214)x=49(215)x=22(216)x=57(217)x=0.5(218)x=1.8(219)x=1(220)x=0.2(221)x=0.6(222)x=3.6(223)x=1.3(224)x=0.9(225)x=0.5(226)x=2(227)x=46(228)x=10(229)x=3(230)x=3(231)x=5(232)x=2(233)x=3(234)x=3(235)x=0.7(236)x=0.6(237)x=0.2(238)x=0.4(239)x=2.5(240)x=1(241)x=2.4(242)x=0.2(243)x=0.2(244)x=4(245)x=2(246)x=32(247)x=3(248)x=33(249)x=4(250)x=64(251)x=45(252)x=4(253)x=7(254)x=15(255)x=15(256)x=16(257)x=20(258)x=20(259)x=76(260)x=12(261)x=66(262)x=0.2(263)x=0.2(264)x=0.9(265)x=1.3(266)x=0.2(267)x=2(268)x=0.8(269)x=0.8(270)x=0.8(271)x=9(272)x=19(273)x=12(274)x=12(275)x=7(276)x=6(277)x=30(278)x=2(279)x=41(280)x=9(281)x=8(282)x=21(283)x=3(284)x=10(285)x=10(286)x=23(287)x=8(288)x=14(289)x=10(290)x=11(291)x=16(292)x=69(293)x=7(294)x=3(295)x=3(296)x=30(297)x=8(298)x=8(299)x=33(300)x=9(301)x=27(302)x=8(303)x=11(304)x=2(305)x=6(306)x=2(307)x=4(308)x=22(309)x=2(310)x=13(311)x=6(312)x=4(313)x=5(314)x=10(315)x=19(316)x=9(317)x=13(318)x=3(319)x=9(320)x=49(321)x=50(322)x=7(323)x=10(324)x=18(325)x=7(326)x=23(327)x=11(328)x=7(329)x=8(330)x=2(331)x=4(332)x=10(333)x=4(334)x=25(335)x=19(336)x=15(337)x=14(338)x=3(339)x=5(340)x=12(341)x=14(342)x=5(343)x=2(344)x=9(345)x=12(346)x=14(347)x=7(348)x=14(349)x=4(350)x=17(351)x=51(352)x=0.5(353)x=1.2(354)x=5.4(355)x=1.8(356)x=0.6(357)x=0.5(358)x=0.9(359)x=0.7(360)x=1(361)x=2(362)x=11(363)x=21(364)x=14(365)x=10(366)x=10(367)x=13(368)x=18(369)x=7(370)x=1.4(371)x=2.5(372)x=0.2(373)x=0.7(374)x=1.5(375)x=0.7(376)x=2.5(377)x=0.4(378)x=0.6(379)x=3(380)x=5(381)x=8(382)x=22(383)x=6(384)x=4(385)x=43(386)x=17(387)x=12(388)x=1.2(389)x=6.2(390)x=2.2(391)x=1.3(392)x=1.4(3