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+26=50(2)x+10=102(3)x+74=89(4)x+58=62(5)x+9=86(6)x+41=118(7)x+93=156(8)x+63=87(9)x+95=178(10)x-6=85(11)x-30=51(12)x-41=45(13)x-17=44(14)x-13=81(15)x-65=19(16)x-4=53(17)x-7=59(18)x-40=55(19)x+1.9=2.3(20)x+1.4=7.2(21)x+8.7=12.9(22)x+1.9=7.1(23)x+1.7=10(24)x+9.1=19(25)x+8.3=15.8(26)x+0.5=3.4(27)x+8.4=11.5(28)x-2.4=4.5(29)x-4=3.5(30)x-7.9=2(31)x-5.8=1.7(32)x-0.9=3.4(33)x-1.5=5.8(34)x-4.2=3(35)x-0.7=2.4(36)x-1.4=6.6(37)34+x=100(38)9+x=31(39)61+x=93(40)49+x=69(41)17+x=93(42)73+x=96(43)13+x=99(44)16+x=77(45)76+x=125(46)99-x=52(47)77-x=68(48)98-x=58(49)95-x=30(50)64-x=40(51)29-x=19(52)84-x=36(53)43-x=15(54)74-x=57(55)5.3+x=10.5(56)2.8+x=7.6(57)0.3+x=1.6(58)1.2+x=9(59)5.9+x=8(60)3.9+x=4.3(61)7.5+x=9.6(62)4.1+x=13.2(63)9.9+x=12.5(64)8.8-x=5.9(65)9.1-x=7.6(66)8.8-x=7.6(67)6.5-x=3.6(68)4.2-x=3.6(69)8.6-x=6.8(70)8.2-x=5.2(71)8.9-x=2.9(72)6.8-x=1.8(73)90x=180(74)7x=147(75)7x=154(76)3x=90(77)26x=156(78)5x=25(79)3x=39(80)4x=60(81)20x=100(82)2x=4(83)8.3x=16.6(84)0.6x=4.2(85)0.2x=10.2(86)0.6x=9.6(87)3.2x=9.6(88)0.2x=18.2(89)0.4x=15.2(90)1.9x=9.5(91)4x=6(92)14x=5.6(93)6x=2.4(94)28x=19.6(95)22x=8.8(96)8x=13.6(97)18x=5.4(98)20x=6(99)7x=6.3(100)90÷x=9(101)66÷x=33(102)187÷x=17(103)171÷x=9(104)72÷x=12(105)156÷x=3(106)91÷x=13(107)56÷x=4(108)40÷x=10(109)19.6÷x=0.4(110)15.2÷x=0.8(111)18.6÷x=0.6(112)19.5÷x=1.3(113)6.9÷x=0.3(114)13.2÷x=1.1(115)6.6÷x=3.3(116)12.3÷x=4.1(117)16.8÷x=0.8(118)x÷99=2(119)x÷2=29(120)x÷8=9(121)x÷2=28(122)x÷12=5(123)x÷2=12(124)x÷5=27(125)x÷22=2(126)x÷4=4(127)x÷12=0.5(128)x÷6=1.3(129)x÷2=2.4(130)x÷2=3.2(131)x÷18=0.8(132)x÷28=0.7(133)x÷2=1.4(134)x÷10=1.8(135)x÷21=0.8(136)2x+52=174(137)42x+59=227(138)17x+51=204(139)2x+11=157(140)6x+57=93(141)14x+38=178(142)12x+43=139(143)10x+49=139(144)46x+59=151(145)28x-18=66(146)3x-33=129(147)2x-11=145(148)16x-37=139(149)5x-28=12(150)91x-40=142(151)46x-47=45(152)5x-51=149(153)61x-31=152(154)4x+5.1=20.3(155)2x+1.7=6.1(156)8x+3.1=15.9(157)35x+1.2=15.2(158)3x+1.8=5.7(159)6x+2.7=6.9(160)7x+1.2=19.4(161)3x+5.7=19.2(162)19x+4.2=13.7(163)0.5x+4.9=20.4(164)0.9x+4.1=10.4(165)1.1x+1.1=9.9(166)0.4x+2.9=20.5(167)0.3x+4.4=15.8(168)0.4x+5.2=22.4(169)0.2x+1.3=6.5(170)0.2x+1.5=16.7(171)6.4x+3.3=22.5(172)5x-2=15(173)82x-1.3=15.1(174)5x-3.7=4.3(175)8x-5.8=11.8(176)22x-4.7=8.5(177)18x-2.1=10.5(178)15x-4.3=1.7(179)52x-4.2=11.4(180)2x-5=2.4(181)2x-1.6=12.4(182)0.3x-2.3=5.8(183)2.1x-3.7=2.6(184)6x-4.8=13.2(185)6.4x-4.7=14.5(186)6.3x-4.6=14.3(187)0.2x-3.1=4.5(188)0.2x-1=7.2(189)0.2x-1.7=15.7(190)152+3x=173(191)146+18x=236(192)129+2x=141(193)62+89x=240(194)58+2x=238(195)78+3x=189(196)81+5x=126(197)72+7x=191(198)184+3x=190(199)92-10x=52(200)57-6x=15(201)139-7x=125(202)118-2x=70(203)174-10x=154(204)146-7x=55(205)185-4x=49(206)69-7x=27(207)141-15x=66(208)11.3+0.4x=15.7(209)12.3+0.2x=17.1(210)7.9+0.3x=12.4(211)7+0.5x=26.5(212)12.5+1.3x=20.3(213)6.8+1.2x=24.8(214)19.8+0.7x=30.3(215)14.5+0.3x=28.9(216)17.8+1.4x=20.6(217)1.7+3x=8.9(218)18+2x=23.2(219)15.2+6x=33.2(220)1+16x=20.2(221)7.8+39x=15.6(222)15.1+74x=29.9(223)13.9+7x=20.2(224)5.7+13x=13.5(225)1.7+23x=17.8(226)12.6-1.4x=5.6(227)18.6-1.6x=4.2(228)14-1.7x=10.6(229)19.9-0.3x=2.8(230)8-1.1x=3.6(231)6.4-0.2x=5.8(232)12.2-0.6x=8(233)16-1.7x=12.6(234)13.3-0.2x=3.1(235)11.1-2x=4.9(236)16.2-28x=2.2(237)8.8-3x=2.5(238)17.3-2x=8.3(239)16.6-3x=10.3(240)17.8-7x=10.1(241)17.4-2x=9.8(242)8.3-16x=3.5(243)18.4-35x=7.9(244)30x÷10=12(245)9x÷18=4(246)2x÷11=18(247)4x÷66=2(248)36x÷45=4(249)50x÷20=10(250)2x÷9=22(251)5x÷9=10(252)19x÷57=3(253)0.6x÷45=0.2(254)9x÷4=4.5(255)0.2x÷26=0.4(256)9.6x÷48=0.4(257)1.2x÷8=0.3(258)1.4x÷56=0.2(259)1.4x÷12=0.7(260)1.5x÷9=1(261)0.8x÷24=0.5(262)20x÷28=0.5(263)2x÷28=0.3(264)2x÷6=2.4(265)6x÷21=0.2(266)10x÷12=1.5(267)2x÷30=0.3(268)3x÷4=1.8(269)8x÷20=0.4(270)10x÷15=0.6(271)2x+6x=112(272)3x+6x=72(273)13x+14x=162(274)6x+7x=312(275)5x+2x=21(276)15x+9x=288(277)7x+2x=45(278)5x+2x=175(279)15x+17x=288(280)6x-2x=16(281)13x-3x=150(282)12x-9x=30(283)15x-12x=24(284)14x-2x=60(285)15x-7x=104(286)11x-6x=25(287)13x-8x=75(288)19x-8x=33(289)3.5x+0.5x=44(290)4.7x+0.6x=111.3(291)8.9x+9.1x=162(292)1.2x+3.1x=34.4(293)9.6x+2.5x=60.5(294)0.2x+1.1x=22.1(295)4.3x+2.1x=57.6(296)2.1x+1.2x=148.5(297)8.9x+6.1x=135(298)9.7x-8.8x=3.6(299)2.5x-0.4x=73.5(300)7.6x-2.8x=14.4(301)7.6x-1.4x=55.8(302)3.9x-2.7x=28.8(303)1x-0.8x=17.4(304)6x-1.8x=29.4(305)2.9x-0.7x=70.4(306)4.8x-3.9x=6.3(307)2x+3x+14=234(308)15x+3x+49=193(309)7x+6x+43=147(310)11x+5x+21=181(311)14x+6x+35=255(312)10x+8x+40=292(313)8x+11x+10=143(314)8x+5x+12=142(315)7x+8x+14=224(316)13x+6x-10=218(317)16x+7x-10=82(318)5x+3x-15=49(319)16x+14x-31=89(320)16x+12x-17=179(321)2x+3x-22=138(322)2x+16x-40=158(323)7x+3x-49=101(324)4x+3x-40=212(325)6x-2x+9=45(326)9x-6x+31=73(327)11x-3x+9=41(328)17x-11x+40=58(329)15x-4x+12=144(330)14x-10x+35=67(331)17x-5x+33=165(332)6x-2x+46=94(333)15x-10x+48=93(334)16x-10x-28=20(335)11x-5x-47=31(336)13x-9x-12=28(337)18x-2x-44=132(338)18x-4x-35=35(339)11x-4x-45=67(340)18x-4x-37=89(341)5x-3x-30=18(342)13x-3x-47=53(343)0.8x+5.7x+1.2=105.2(344)3.5x+0.5x+1.1=113.1(345)8.2x+7.7x+3.5=67.1(346)3.7x+9.4x+2.5=68(347)3.3x+4.6x+1=135.3(348)3.8x+0.5x+1.9=27.7(349)4.8x+6.1x+4.9=168.4(350)2x+2.4x+3.5=117.9(351)2x+0.2x+2.7=48.9(352)5x+86x+3.5=39.9(353)71x+33x+4.2=87.4(354)65x+56x+4.9=41.2(355)97x+66x+4.1=69.3(356)37x+71x+4.9=80.5(357)72x+66x+0.8=125(358)96x+90x+1.6=38.8(359)47x+27x+1=15.8(360)34x+85x+1.9=61.4(361)2.5x+9.2x-1=80.9(362)4.8x+3.5x-0.3=32.9(363)5.1x+6.9x-1.5=70.5(364)1.5x+1.6x-3.1=130.2(365)2.9x+7.3x-3.7=47.3(366)1.3x+1.1x-0.4=4.4(367)3.7x+3.4x-3.3=74.8(368)6.9x+8.2x-0.5=180.7(369)8.4x+2.9x-4.7=119.6(370)75x+59x-3.9=36.3(371)31x+9x-4.9=95.1(372)7x+56x-4.5=83.7(373)65x+31x-3.9=140.1(374)18x+58x-0.4=83.2(375)15x+41x-3.7=35.5(376)5x+38x-2=10.9(377)9x+21x-4.1=43.9(378)18x+5x-3.8=118.1(379)4.4x-2x+1.1=25.1(380)9x-6.7x+4.2=13.4(381)8.4x-7.9x+0.7=1.7(382)3.7x-2.1x+0.6=21.4(383)4.8x-2x+0.5=53.7(384)6.8x-4.6x+4=15(385)3.4x-1.8x+2.9=6.1(386)6.2x-3.2x+1.8=34.8(387)7.4x-0.9x+2.3=86.8(388)80x-58x+4.3=15.3(389)90x-87x+0.9=3.3(390)65x-57x+4.4=14(391)20x-11x+2.7=25.2(392)15x-5x+1.3=19.3(393)9x-7x+4.2=8.6(394)56x-32x+4.3=40.3(395)43x-31x+0.8=23.6(396)98x-19x+4.5=28.2(397)7.4x-4.9x-1.6=20.9(398)3.7x-1.9x-4.7=16.9(399)3.8x-3.6x-1=2(400)7.7x-4.7x-4=5(401)2.4x-1.6x-4.8=8.8(402)4.1x-2.8x-1.3=6.5(403)7.3x-3.3x-3=29(404)8.4x-7.1x-2.5=7.9(405)1.6x-0.4x-0.5=51.1(406)60x-2x-2.8=43.6(407)84x-42x-3.2=9.4(408)91x-25x-3.2=29.8(409)74x-46x-2=26(410)99x-6x-0.7=17.9(411)82x-30x-2.3=23.7(412)91x-24x-0.2=19.9(413)77x-7x-1.4=68.6(414)85x-25x-0.9=11.1(415)9x+22×8=374(416)2x+2×44=236(417)17x+15×2=81(418)4x+5×11=67(419)4x+5×35=347(420)13x+2×73=276(421)4x+2×62=196(422)6x+10×19=298(423)18x+9×3=63(424)22x-15×7=49(425)8x-4×31=76(426)2x-20×2=158(427)25x-6×19=61(428)7x-6×13=27(429)2x-40×2=72(430)2x-6×7=58(431)3x-66×2=48(432)28x-3×22=18(433)1.1x+0.5×31=19.9(434)1.5x+0.2×27=14.4(435)0.3x+4.3×4=23.2(436)3.3x+0.8×2=14.8(437)3.7x+3.4×4=32.1(438)0.3x+2.5×5=22.1(439)0.2x+0.7×24=18.6(440)1.9x+0.7×3=9.7(441)3x+1.5×9=31.5(442)26x+2×2.3=17.6(443)7x+23×0.5=15.7(444)2x+7×2.4=26.2(445)31x+17×0.2=9.6(446)2x+11×1.3=18.7(447)13x+4×2.5=17.8(448)47x+9×2.2=38.6(449)22x+26×0.3=16.6(450)13x+17×0.9=29.6(451)1.5x-0.2×11=14.3(452)0.5x-0.7×8=4.9(453)0.5x-4.8×2=5.9(454)1.9x-1.1×3=8.1(455)0.7x-3×4=1.3(456)1.8x-0.2×47=8.6(457)0.7x-0.6×5=6.1(458)0.3x-1.3×7=5(459)0.4x-1.1×6=4.2(460)31x-8×1.3=5.1(461)10x-4×3.3=2.8(462)5x-7×0.3=6.4(463)19x-6×0.5=6.5(464)8x-33×0.3=6.9(465)15x-4×3.1=7.1(466)4x-18×0.7=1.4(467)9x-33×0.2=7.8(468)15x-2×0.4=11.2(469)5(x+22)=195(470)2(2x+39)=158(471)7(2x+2)=140(472)2(5x+23)=126(473)4(x+12)=176(474)2(11x+33)=110(475)2(2x+12)=172(476)4(6x+18)=168(477)5(x+26)=155(478)10(18x-26)=100(479)5(3x-7)=70(480)2(3x-47)=20(481)10(3x-12)=120(482)2(7x-8)=26(483)5(7x-16)=200(484)4(x-6)=100(485)14(20x-29)=154(486)2(3x-15)=102(487)2(1.5x+4.9)=21.8(488)10(0.3x+1.4)=41(489)4(1.8x+3.6)=28.8(490)4(3.2x+2.2)=34.4(491)6(0.5x+0.3)=31.8(492)16(0.7x+0.5)=30.4(493)5(1.6x+0.5)=42.5(494)2(5.3x+3.4)=49.2(495)3(0.2x+1.3)=29.7(496)12(0.3x-9.2)=15.6(497)10(0.9x-9.3)=33(498)14(0.2x-0.4)=30.8(499)11(0.3x-9.8)=30.8(500)2(2x-4.7)=2.6(501)3(0.7x-6.5)=39.3(502)2(0.3x-5.4)=4.2(503)20(0.6x-9.2)=20(504)15(0.4x-1.4)=39(505)(17x+24)÷40=4(506)(6x+42)÷3=42(507)(17x+27)÷3=94(508)(x+40)÷2=27(509)(7x+44)÷3=52(510)(12x+40)÷2=44(511)(4x+26)÷6=15(512)(8x+26)÷5=18(513)(4x+43)÷23=5(514)(9x-7)÷32=4(515)(2x-12)÷28=1(516)(13x-11)÷2=27(517)(4x-27)÷3=7(518)(17x-44)÷8=3(519)(7x-8)÷2=59(520)(8x-13)÷5=7(521)(10x-30)÷16=10(522)(6x-3)÷7=15(523)(7.4x+7)÷16=4.6(524)(7.9x+8.5)÷11=5.8(525)(1.9x+5.2)÷4=5.1(526)(1.6x+1.9)÷3=8.1(527)(0.3x+5.4)÷11=0.9(528)(1.3x+0.2)÷14=0.2(529)(3.8x+7.2)÷18=4.2(530)(8.1x+7.2)÷9=8.9(531)(0.2x+4.4)÷3=2.2(532)(9.2x-6.6)÷2=10.5(533)(4.8x-3.6)÷6=8.2(534)(2.6x-5.2)÷26=1.4(535)(8.8x-9.3)÷9=1.9(536)(2.6x-3.1)÷7=5.5(537)(8.5x-6)÷20=3.1(538)(2.1x-2.8)÷5=7(539)(0.8x-4)÷16=0.5(540)(9.2x-1.7)÷39=0.9参考答案(1)x=24(2)x=92(3)x=15(4)x=4(5)x=77(6)x=77(7)x=63(8)x=24(9)x=83(10)x=91(11)x=81(12)x=86(13)x=61(14)x=94(15)x=84(16)x=57(17)x=66(18)x=95(19)x=0.4(20)x=5.8(21)x=4.2(22)x=5.2(23)x=8.3(24)x=9.9(25)x=7.5(26)x=2.9(27)x=3.1(28)x=6.9(29)x=7.5(30)x=9.9(31)x=7.5(32)x=4.3(33)x=7.3(34)x=7.2(35)x=3.1(36)x=8(37)x=66(38)x=22(39)x=32(40)x=20(41)x=76(42)x=23(43)x=86(44)x=61(45)x=49(46)x=47(47)x=9(48)x=40(49)x=65(50)x=24(51)x=10(52)x=48(53)x=28(54)x=17(55)x=5.2(56)x=4.8(57)x=1.3(58)x=7.8(59)x=2.1(60)x=0.4(61)x=2.1(62)x=9.1(63)x=2.6(64)x=2.9(65)x=1.5(66)x=1.2(67)x=2.9(68)x=0.6(69)x=1.8(70)x=3(71)x=6(72)x=5(73)x=2(74)x=21(75)x=22(76)x=30(77)x=6(78)x=5(79)x=13(80)x=15(81)x=5(82)x=2(83)x=2(84)x=7(85)x=51(86)x=16(87)x=3(88)x=91(89)x=38(90)x=5(91)x=1.5(92)x=0.4(93)x=0.4(94)x=0.7(95)x=0.4(96)x=1.7(97)x=0.3(98)x=0.3(99)x=0.9(100)x=10(101)x=2(102)x=11(103)x=19(104)x=6(105)x=52(106)x=7(107)x=14(108)x=4(109)x=49(110)x=19(111)x=31(112)x=15(113)x=23(114)x=12(115)x=2(116)x=3(117)x=21(118)x=198(119)x=58(120)x=72(121)x=56(122)x=60(123)x=24(124)x=135(125)x=44(126)x=16(127)x=6(128)x=7.8(129)x=4.8(130)x=6.4(131)x=14.4(132)x=19.6(133)x=2.8(134)x=18(135)x=16.8(136)x=61(137)x=4(138)x=9(139)x=73(140)x=6(141)x=10(142)x=8(143)x=9(144)x=2(145)x=3(146)x=54(147)x=78(148)x=11(149)x=8(150)x=2(151)x=2(152)x=40(153)x=3(154)x=3.8(155)x=2.2(156)x=1.6(157)x=0.4(158)x=1.3(159)x=0.7(160)x=2.6(161)x=4.5(162)x=0.5(163)x=31(164)x=7(165)x=8(166)x=44(167)x=38(168)x=43(169)x=26(170)x=76(171)x=3(172)x=3.4(173)x=0.2(174)x=1.6(175)x=2.2(176)x=0.6(177)x=0.7(178)x=0.4(179)x=0.3(180)x=3.7(181)x=7(182)x=27(183)x=3(184)x=3(185)x=3(186)x=3(187)x=38(188)x=41(189)x=87(190)x=7(191)x=5(192)x=6(193)x=2(194)x=90(195)x=37(196)x=9(197)x=17(198)x=2(199)x=4(200)x=7(201)x=2(202)x=24(203)x=2(204)x=13(205)x=34(206)x=6(207)x=5(208)x=11(209)x=24(210)x=15(211)x=39(212)x=6(213)x=15(214)x=15(215)x=48(216)x=2(217)x=2.4(218)x=2.6(219)x=3(220)x=1.2(221)x=0.2(222)x=0.2(223)x=0.9(224)x=0.6(225)x=0.7(226)x=5(227)x=9(228)x=2(229)x=57(230)x=4(231)x=3(232)x=7(233)x=2(234)x=51(235)x=3.1(236)x=0.5(237)x=2.1(238)x=4.5(239)x=2.1(240)x=1.1(241)x=3.8(242)x=0.3(243)x=0.3(244)x=4(245)x=8(246)x=99(247)x=33(248)x=5(249)x=4(250)x=99(251)x=18(252)x=9(253)x=15(254)x=2(255)x=52(256)x=2(257)x=2(258)x=8(259)x=6(260)x=6(261)x=15(262)x=0.7(263)x=4.2(264)x=7.2(265)x=0.7(266)x=1.8(267)x=4.5(268)x=2.4(269)x=1(270)x=0.9(271)x=14(272)x=8(273)x=6(274)x=24(275)x=3(276)x=12(277)x=5(278)x=25(279)x=9(280)x=4(281)x=15(282)x=10(283)x=8(284)x=5(285)x=13(286)x=5(287)x=15(288)x=3(289)x=11(290)x=21(291)x=9(292)x=8(293)x=5(294)x=17(295)x=9(296)x=45(297)x=9(298)x=4(299)x=35(300)x=3(301)x=9(302)x=24(303)x=87(304)x=7(305)x=32(306)x=7(307)x=44(308)x=8(309)x=8(310)x=10(311)x=11(312)x=14(313)x=7(314)x=10(315)x=14(316)x=12(317)x=4(318)x=8(319)x=4(320)x=7(321)x=32(322)x=11(323)x=15(324)x=36(325)x=9(326)x=14(327)x=4(328)x=3(329)x=12(330)x=8(331)x=11(332)x=12(333)x=9(334)x=8(335)x=13(336)x=10(337)x=11(338)x=5(339)x=16(340)x=9(341)x=24(342)x=10(343)x=16(344)x=28(345)x=4(346)x=5(347)x=17(348)x=6(349)x=15(350)x=26(351)x=21(352)x=0.4(353)x=0.8(354)x=0.3(355)x=0.4(356)x=0.7(357)x=0.9(358)x=0.2(359)x=0.2(360)x=0.5(361)x=7(362)x=4(363)x=6(364)x=43(365)x=5(366)x=2(367)x=11(368)x=12(369)x=11(370)x=0.3(371)x=2.5(372)x=1.4(373)x=1.5(374)x=1.1(375)x=0.7(376)x=0.3(377)x=1.6(378)x=5.3(379)x=10(380)x=4(381)x=2(382)x=13(383)x=19(384)x=5(385)x=2(386)x=11(387)x=13(388)x=0.5(389)x=0.8(390)x=1.2(391)x=2.5(392)x