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+76=164(2)x+29=64(3)x+62=83(4)x+5=68(5)x+50=144(6)x+53=146(7)x+91=142(8)x+82=108(9)x+77=115(10)x-41=24(11)x-34=35(12)x-24=43(13)x-57=18(14)x-29=70(15)x-47=26(16)x-63=36(17)x-6=83(18)x-7=79(19)x+5=13.8(20)x+4.6=11.8(21)x+0.4=4.3(22)x+6.7=12.4(23)x+2.6=8(24)x+2.1=6.5(25)x+7=7.5(26)x+7=11.3(27)x+5.5=8.4(28)x-2.1=1.9(29)x-0.3=8.5(30)x-4.1=4(31)x-4.5=1.6(32)x-5.2=1.8(33)x-4=5.1(34)x-5.6=1.2(35)x-6=3.1(36)x-1=2.4(37)34+x=97(38)87+x=171(39)11+x=27(40)16+x=48(41)73+x=119(42)54+x=81(43)41+x=74(44)53+x=123(45)67+x=91(46)82-x=43(47)81-x=67(48)89-x=64(49)84-x=58(50)96-x=43(51)97-x=87(52)90-x=38(53)67-x=59(54)62-x=31(55)2.1+x=6.4(56)8.5+x=8.9(57)5.8+x=13.1(58)1.6+x=8.3(59)5.8+x=12.2(60)6.8+x=14(61)4+x=12.7(62)8.2+x=10.6(63)1.5+x=10.5(64)7.9-x=1.7(65)8.7-x=2(66)4.3-x=1.8(67)7.2-x=4.7(68)8.1-x=7.5(69)6.5-x=5.3(70)9-x=5.7(71)7.3-x=2.1(72)3.8-x=2.9(73)31x=93(74)2x=162(75)11x=33(76)3x=186(77)4x=12(78)4x=168(79)18x=36(80)27x=189(81)54x=108(82)0.6x=4.2(83)2.3x=16.1(84)0.7x=1.4(85)0.3x=9(86)1.6x=14.4(87)2.6x=15.6(88)1.8x=16.2(89)0.2x=4.8(90)1.7x=17(91)3x=9(92)4x=6.4(93)4x=17.2(94)5x=13(95)20x=16(96)2x=17.6(97)11x=18.7(98)6x=10.2(99)20x=8(100)128÷x=32(101)100÷x=5(102)140÷x=10(103)112÷x=14(104)140÷x=7(105)104÷x=8(106)76÷x=4(107)99÷x=11(108)78÷x=6(109)16.8÷x=2.4(110)13.2÷x=0.4(111)4.5÷x=0.3(112)9.6÷x=0.6(113)14.8÷x=0.2(114)6.8÷x=3.4(115)4.6÷x=2.3(116)14.8÷x=0.4(117)15.6÷x=0.3(118)x÷10=16(119)x÷11=13(120)x÷10=11(121)x÷3=5(122)x÷9=2(123)x÷28=2(124)x÷5=15(125)x÷2=5(126)x÷8=21(127)x÷4=3.6(128)x÷27=0.7(129)x÷23=0.7(130)x÷8=1.3(131)x÷64=0.2(132)x÷3=1.1(133)x÷73=0.2(134)x÷10=0.2(135)x÷6=0.2(136)24x+56=200(137)13x+52=208(138)12x+18=42(139)18x+39=219(140)20x+11=111(141)2x+46=76(142)31x+45=138(143)26x+54=132(144)10x+32=172(145)7x-24=130(146)2x-36=40(147)5x-26=19(148)2x-40=122(149)19x-26=88(150)3x-13=161(151)5x-56=44(152)11x-36=19(153)84x-24=144(154)3x+2.2=6.4(155)11x+5.3=20.7(156)7x+5=14.8(157)2x+1.8=8.8(158)14x+5.6=9.8(159)20x+1.2=19.2(160)3x+3.6=5.1(161)44x+2.7=20.3(162)8x+2=10.8(163)0.2x+1.5=9.7(164)3.7x+4.8=23.3(165)0.4x+3.6=21.6(166)2.4x+5.6=22.4(167)1x+4.2=17.2(168)1.9x+2.3=11.8(169)0.4x+1.5=11.9(170)5.7x+1.7=18.8(171)0.5x+2.2=4.7(172)6x-3.9=9.9(173)16x-5.6=4(174)17x-5.2=11.8(175)17x-4.8=3.7(176)2x-3.5=13.9(177)6x-5.2=9.8(178)4x-2=16.8(179)73x-3.4=11.2(180)37x-4.9=2.5(181)3x-4.1=10.9(182)0.3x-2.8=10.1(183)1.4x-1.8=15(184)0.4x-4.6=13.8(185)1.3x-2.8=5(186)1.8x-2.1=6.9(187)1x-4.4=15.6(188)1.1x-1=6.7(189)0.7x-1.6=15.9(190)76+3x=112(191)191+19x=362(192)171+15x=261(193)138+4x=234(194)96+93x=282(195)129+18x=201(196)93+4x=145(197)37+9x=100(198)103+45x=238(199)40-2x=26(200)156-14x=58(201)195-2x=173(202)137-13x=33(203)91-2x=21(204)126-23x=80(205)77-3x=62(206)155-39x=38(207)182-6x=122(208)15.8+3.1x=22(209)5.5+0.2x=23.3(210)14.6+0.2x=24.4(211)4+0.6x=8.2(212)8+5.5x=19(213)3.1+1x=20.1(214)15.2+5.7x=26.6(215)17.8+1x=23.8(216)15.4+0.2x=16.8(217)14.4+24x=24(218)7.8+6x=24.6(219)5.9+86x=23.1(220)10.4+3x=17(221)13.8+5x=33.8(222)5.9+3x=19.4(223)11.6+2x=26(224)11.8+2x=20.4(225)14.8+12x=20.8(226)16.3-0.2x=13.1(227)9.5-0.5x=3.5(228)17.2-0.8x=13.2(229)17.2-0.2x=9(230)19.8-0.3x=5.7(231)4.3-0.5x=2.3(232)8.2-1.3x=5.6(233)18.3-0.4x=9.5(234)15-0.4x=14.2(235)15.3-2x=4.5(236)18-14x=4(237)12.7-2x=2.7(238)12.8-13x=1.1(239)17.6-5x=12.1(240)11.7-25x=6.7(241)17.5-3x=1.9(242)10.1-2x=2.5(243)15.8-29x=1.3(244)30x÷6=10(245)18x÷72=2(246)46x÷6=23(247)20x÷50=2(248)2x÷3=34(249)5x÷3=15(250)5x÷35=2(251)4x÷14=14(252)2x÷6=19(253)0.7x÷14=0.6(254)1x÷6=3(255)1x÷8=0.5(256)6x÷45=0.4(257)0.7x÷4=3.5(258)0.4x÷3=4.4(259)0.8x÷40=0.3(260)2.8x÷7=2(261)6.4x÷16=0.8(262)2x÷6=0.5(263)4x÷56=0.2(264)4x÷2=4.8(265)3x÷7=2.1(266)74x÷4=3.7(267)18x÷6=2.7(268)45x÷30=0.6(269)2x÷18=0.8(270)30x÷45=0.4(271)14x+17x=279(272)18x+19x=370(273)12x+11x=207(274)4x+13x=102(275)17x+19x=288(276)5x+17x=132(277)2x+18x=200(278)10x+11x=84(279)13x+2x=45(280)6x-2x=128(281)9x-7x=34(282)16x-11x=45(283)4x-2x=88(284)16x-14x=24(285)4x-2x=32(286)16x-8x=72(287)19x-16x=27(288)11x-3x=64(289)4.3x+3.2x=45(290)4.2x+7.8x=60(291)8.1x+3.5x=46.4(292)5.9x+2.2x=48.6(293)2.3x+6.8x=27.3(294)2.8x+2.4x=78(295)3.5x+7.8x=101.7(296)7.4x+3.5x=130.8(297)4.9x+0.4x=79.5(298)6.3x-5.1x=6(299)5.4x-2x=57.8(300)2.3x-1.5x=20(301)2.3x-1.5x=17.6(302)8.3x-1x=43.8(303)7.1x-3.6x=24.5(304)1.5x-0.5x=35(305)7.6x-5.8x=10.8(306)5.3x-2.5x=36.4(307)2x+6x+43=307(308)11x+4x+23=128(309)2x+4x+29=101(310)18x+15x+22=187(311)4x+2x+46=322(312)5x+3x+26=234(313)4x+7x+24=244(314)19x+15x+32=100(315)5x+10x+26=71(316)11x+9x-15=325(317)9x+3x-23=145(318)18x+16x-15=87(319)6x+3x-12=177(320)12x+9x-42=126(321)9x+6x-9=21(322)4x+8x-19=65(323)4x+13x-8=77(324)17x+5x-10=188(325)17x-15x+20=42(326)6x-3x+13=70(327)5x-2x+48=141(328)6x-2x+37=141(329)6x-3x+49=79(330)4x-2x+26=96(331)8x-5x+46=100(332)17x-6x+20=64(333)18x-14x+47=71(334)16x-9x-8=41(335)9x-7x-11=25(336)7x-4x-48=18(337)18x-9x-32=13(338)10x-6x-36=16(339)7x-4x-41=40(340)16x-4x-16=80(341)17x-10x-15=62(342)12x-5x-10=60(343)0.3x+0.9x+3.2=90.8(344)1.9x+6.3x+3.1=109.7(345)1.9x+5.4x+0.2=124.3(346)3.9x+4.7x+1.9=156.7(347)1.1x+1.7x+3.1=22.7(348)0.8x+4.3x+4=90.7(349)5.5x+2.9x+4.9=80.5(350)9.5x+2.1x+3.6=108(351)3.1x+2.9x+3.7=57.7(352)15x+26x+0.9=9.1(353)23x+42x+0.4=130.4(354)23x+49x+4.4=134(355)99x+9x+1.1=55.1(356)52x+59x+0.6=100.5(357)97x+99x+0.5=176.9(358)15x+4x+3.6=83.4(359)25x+64x+4.9=67.2(360)4x+6x+1.5=87.5(361)6.8x+7.8x-1.9=173.3(362)6.8x+1.8x-4.2=21.6(363)0.4x+1.4x-2=19.6(364)2.1x+2x-4.1=188.6(365)1.3x+4.6x-3.6=49.5(366)2.9x+5.5x-2.3=140.5(367)2.3x+5.2x-3.2=26.8(368)5.8x+0.8x-2.5=10.7(369)5.2x+7.5x-3.1=47.7(370)70x+71x-1.4=181.9(371)64x+85x-0.6=118.6(372)25x+42x-4.2=136.5(373)44x+19x-2.5=136.1(374)51x+54x-0.7=135.8(375)3x+8x-0.4=78.8(376)95x+37x-3.4=115.4(377)84x+29x-2=88.4(378)37x+20x-1.8=15.3(379)5.6x-2.2x+2=22.4(380)2.1x-0.4x+0.7=29.6(381)7.5x-6.6x+2=6.5(382)9.3x-4.4x+3.1=52.1(383)3.4x-1.5x+4.2=59.3(384)2.3x-1.4x+1.6=38.5(385)9.4x-7.7x+0.7=5.8(386)6.3x-5.9x+3.9=5.9(387)7.4x-3.8x+2.3=31.1(388)59x-31x+3.7=45.7(389)16x-9x+1.9=15.9(390)91x-86x+3.9=8.4(391)79x-36x+3.7=38.1(392)91x-9x+3.6=69.2(393)93x-73x+3.3=11.3(394)28x-22x+1.9=13.3(395)34x-28x+1.8=19.2(396)79x-73x+1.3=6.1(397)2x-0.8x-1.1=2.5(398)2.3x-0.2x-4.2=37.8(399)2.5x-0.8x-1.3=2.1(400)0.5x-0.3x-0.8=9.8(401)5.1x-2.2x-2.4=32.4(402)3.7x-2x-0.2=38.9(403)3.4x-1.5x-0.2=30.2(404)3.6x-1.8x-4.6=17(405)6.7x-4.5x-1.7=13.7(406)20x-15x-3.7=5.3(407)57x-17x-4.5=59.5(408)51x-45x-2.5=5.9(409)31x-24x-4.1=5(410)11x-9x-1.3=7.5(411)65x-50x-3.8=6.7(412)74x-58x-3=16.2(413)71x-55x-2.6=11.8(414)25x-13x-4.9=43.1(415)4x+5×24=260(416)4x+2×64=156(417)7x+10×13=284(418)3x+9×3=72(419)22x+21×2=240(420)12x+3×29=111(421)10x+17×9=293(422)4x+3×48=152(423)3x+15×2=165(424)2x-21×2=96(425)3x-16×3=48(426)7x-4×15=136(427)22x-6×12=82(428)26x-3×4=92(429)5x-12×9=27(430)2x-17×8=52(431)2x-5×10=70(432)14x-2×32=76(433)2.4x+4.5×3=25.5(434)1.2x+2.4×3=25.2(435)1.6x+0.6×24=32(436)3.1x+0.3×30=21.4(437)1.5x+0.5×17=28(438)1x+0.9×8=21.2(439)1.4x+2.1×6=26.6(440)0.7x+0.8×14=14(441)3.6x+0.7×27=29.7(442)12x+30×0.2=19.2(443)2x+16×1=19.4(444)5x+19×0.4=17.1(445)9x+20×1=35.3(446)17x+22×0.8=36.3(447)16x+16×0.8=28.8(448)13x+14×0.4=17.3(449)13x+24×0.3=26.7(450)5x+18×0.2=11.6(451)0.4x-2×3=9.2(452)1.3x-0.8×10=1.1(453)4.9x-1.5×12=1.6(454)1.3x-2.8×5=1.6(455)0.4x-2.8×3=5.2(456)1.7x-0.2×28=9.7(457)3.5x-2.5×6=2.5(458)1.8x-3.9×3=4.5(459)0.5x-3.6×3=1.2(460)32x-2×3.4=6(461)8x-10×1.5=5(462)4x-2×1.6=6.8(463)14x-4×1.2=9.2(464)4x-7×1.3=4.1(465)5x-2×3.5=8(466)14x-2×1=2.2(467)4x-24×0.4=7.6(468)33x-20×0.3=7.2(469)8(2x+18)=192(470)2(17x+29)=126(471)3(2x+10)=72(472)3(2x+21)=111(473)2(8x+6)=172(474)2(x+24)=116(475)2(16x+34)=132(476)2(2x+18)=164(477)2(x+43)=170(478)2(6x-30)=144(479)2(10x-46)=128(480)3(7x-16)=57(481)2(5x-13)=94(482)3(27x-17)=192(483)2(x-8)=72(484)2(20x-47)=146(485)13(x-13)=195(486)8(2x-44)=160(487)2(1.2x+5.7)=37.8(488)4(2.9x+3.9)=38.8(489)15(0.2x+0.2)=33(490)2(2.7x+1.5)=35.4(491)2(0.5x+6.1)=35.2(492)3(1.8x+3.2)=20.4(493)2(0.3x+8.9)=45.4(494)2(0.9x+6.4)=21.8(495)9(0.2x+0.2)=39.6(496)2(x-1.7)=28.6(497)2(1.9x-0.9)=32.4(498)3(4x-3.8)=24.6(499)4(0.3x-2.1)=4.8(500)7(1.6x-6.7)=31.5(501)3(7.1x-4.6)=28.8(502)12(0.5x-3.7)=15.6(503)15(0.6x-0.2)=24(504)2(3.4x-0.8)=25.6(505)(19x+10)÷2=119(506)(10x+32)÷4=58(507)(19x+9)÷11=25(508)(11x+13)÷3=19(509)(3x+21)÷3=10(510)(13x+10)÷10=27(511)(10x+26)÷4=64(512)(15x+40)÷10=22(513)(19x+19)÷38=2(514)(15x-15)÷33=5(515)(7x-33)÷34=5(516)(14x-11)÷17=1(517)(5x-26)÷9=6(518)(15x-30)÷3=20(519)(2x-12)÷17=2(520)(15x-46)÷19=11(521)(3x-47)÷5=5(522)(9x-42)÷6=23(523)(3.2x+5.7)÷5=3.7(524)(6.5x+7.1)÷22=1.8(525)(1.8x+3)÷22=0.3(526)(3.4x+2.4)÷27=1.6(527)(3.3x+6)÷2=32.7(528)(6.4x+7.4)÷7=10.2(529)(4.5x+7.8)÷3=25.1(530)(0.2x+5.9)÷19=0.5(531)(6.5x+1.1)÷3=11.2(532)(9.4x-1)÷18=3.6(533)(6.5x-8.6)÷4=14.1(534)(3.1x-7.4)÷8=1.4(535)(6.2x-2.9)÷13=5.5(536)(9.7x-4)÷22=0.7(537)(8.6x-5.5)÷7=11.5(538)(0.9x-2.7)÷18=0.3(539)(5.8x-2.6)÷14=5.2(540)(0.7x-3.4)÷23=0.4参考答案(1)x=88(2)x=35(3)x=21(4)x=63(5)x=94(6)x=93(7)x=51(8)x=26(9)x=38(10)x=65(11)x=69(12)x=67(13)x=75(14)x=99(15)x=73(16)x=99(17)x=89(18)x=86(19)x=8.8(20)x=7.2(21)x=3.9(22)x=5.7(23)x=5.4(24)x=4.4(25)x=0.5(26)x=4.3(27)x=2.9(28)x=4(29)x=8.8(30)x=8.1(31)x=6.1(32)x=7(33)x=9.1(34)x=6.8(35)x=9.1(36)x=3.4(37)x=63(38)x=84(39)x=16(40)x=32(41)x=46(42)x=27(43)x=33(44)x=70(45)x=24(46)x=39(47)x=14(48)x=25(49)x=26(50)x=53(51)x=10(52)x=52(53)x=8(54)x=31(55)x=4.3(56)x=0.4(57)x=7.3(58)x=6.7(59)x=6.4(60)x=7.2(61)x=8.7(62)x=2.4(63)x=9(64)x=6.2(65)x=6.7(66)x=2.5(67)x=2.5(68)x=0.6(69)x=1.2(70)x=3.3(71)x=5.2(72)x=0.9(73)x=3(74)x=81(75)x=3(76)x=62(77)x=3(78)x=42(79)x=2(80)x=7(81)x=2(82)x=7(83)x=7(84)x=2(85)x=30(86)x=9(87)x=6(88)x=9(89)x=24(90)x=10(91)x=3(92)x=1.6(93)x=4.3(94)x=2.6(95)x=0.8(96)x=8.8(97)x=1.7(98)x=1.7(99)x=0.4(100)x=4(101)x=20(102)x=14(103)x=8(104)x=20(105)x=13(106)x=19(107)x=9(108)x=13(109)x=7(110)x=33(111)x=15(112)x=16(113)x=74(114)x=2(115)x=2(116)x=37(117)x=52(118)x=160(119)x=143(120)x=110(121)x=15(122)x=18(123)x=56(124)x=75(125)x=10(126)x=168(127)x=14.4(128)x=18.9(129)x=16.1(130)x=10.4(131)x=12.8(132)x=3.3(133)x=14.6(134)x=2(135)x=1.2(136)x=6(137)x=12(138)x=2(139)x=10(140)x=5(141)x=15(142)x=3(143)x=3(144)x=14(145)x=22(146)x=38(147)x=9(148)x=81(149)x=6(150)x=58(151)x=20(152)x=5(153)x=2(154)x=1.4(155)x=1.4(156)x=1.4(157)x=3.5(158)x=0.3(159)x=0.9(160)x=0.5(161)x=0.4(162)x=1.1(163)x=41(164)x=5(165)x=45(166)x=7(167)x=13(168)x=5(169)x=26(170)x=3(171)x=5(172)x=2.3(173)x=0.6(174)x=1(175)x=0.5(176)x=8.7(177)x=2.5(178)x=4.7(179)x=0.2(180)x=0.2(181)x=5(182)x=43(183)x=12(184)x=46(185)x=6(186)x=5(187)x=20(188)x=7(189)x=25(190)x=12(191)x=9(192)x=6(193)x=24(194)x=2(195)x=4(196)x=13(197)x=7(198)x=3(199)x=7(200)x=7(201)x=11(202)x=8(203)x=35(204)x=2(205)x=5(206)x=3(207)x=10(208)x=2(209)x=89(210)x=49(211)x=7(212)x=2(213)x=17(214)x=2(215)x=6(216)x=7(217)x=0.4(218)x=2.8(219)x=0.2(220)x=2.2(221)x=4(222)x=4.5(223)x=7.2(224)x=4.3(225)x=0.5(226)x=16(227)x=12(228)x=5(229)x=41(230)x=47(231)x=4(232)x=2(233)x=22(234)x=2(235)x=5.4(236)x=1(237)x=5(238)x=0.9(239)x=1.1(240)x=0.2(241)x=5.2(242)x=3.8(243)x=0.5(244)x=2(245)x=8(246)x=3(247)x=5(248)x=51(249)x=9(250)x=14(251)x=49(252)x=57(253)x=12(254)x=18(255)x=4(256)x=3(257)x=20(258)x=33(259)x=15(260)x=5(261)x=2(262)x=1.5(263)x=2.8(264)x=2.4(265)x=4.9(266)x=0.2(267)x=0.9(268)x=0.4(269)x=7.2(270)x=0.6(271)x=9(272)x=10(273)x=9(274)x=6(275)x=8(276)x=6(277)x=10(278)x=4(279)x=3(280)x=32(281)x=17(282)x=9(283)x=44(284)x=12(285)x=16(286)x=9(287)x=9(288)x=8(289)x=6(290)x=5(291)x=4(292)x=6(293)x=3(294)x=15(295)x=9(296)x=12(297)x=15(298)x=5(299)x=17(300)x=25(301)x=22(302)x=6(303)x=7(304)x=35(305)x=6(306)x=13(307)x=33(308)x=7(309)x=12(310)x=5(311)x=46(312)x=26(313)x=20(314)x=2(315)x=3(316)x=17(317)x=14(318)x=3(319)x=21(320)x=8(321)x=2(322)x=7(323)x=5(324)x=9(325)x=11(326)x=19(327)x=31(328)x=26(329)x=10(330)x=35(331)x=18(332)x=4(333)x=6(334)x=7(335)x=18(336)x=22(337)x=5(338)x=13(339)x=27(340)x=8(341)x=11(342)x=10(343)x=73(344)x=13(345)x=17(346)x=18(347)x=7(348)x=17(349)x=9(350)x=9(351)x=9(352)x=0.2(353)x=2(354)x=1.8(355)x=0.5(356)x=0.9(357)x=0.9(358)x=4.2(359)x=0.7(360)x=8.6(361)x=12(362)x=3(363)x=12(364)x=47(365)x=9(366)x=17(367)x=4(368)x=2(369)x=4(370)x=1.3(371)x=0.8(372)x=2.1(373)x=2.2(374)x=1.3(375)x=7.2(376)x=0.9(377)x=0.8(378)x=0.3(379)x=6(380)x=17(381)x=5(382)x=10(383)x=29(384)x=41(385)x=3(386)x=5(387)x=8(388)x=1.5(389)x=2(390)x=0.9(391)x=0.8(392)x=