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+41=123(2)x+57=70(3)x+50=141(4)x+25=91(5)x+82=177(6)x+11=20(7)x+60=124(8)x+53=100(9)x+69=162(10)x-28=57(11)x-2=59(12)x-42=31(13)x-18=12(14)x-62=31(15)x-3=91(16)x-31=37(17)x-71=19(18)x-52=15(19)x+7.8=11.6(20)x+5.5=11.6(21)x+0.5=5.1(22)x+8.5=12.7(23)x+1.8=4.6(24)x+0.2=8.9(25)x+6.4=9(26)x+2.5=10.5(27)x+1.2=4.4(28)x-0.4=3.3(29)x-1.4=8.3(30)x-4.5=3.4(31)x-6.2=1.9(32)x-0.5=6.3(33)x-2.3=1.3(34)x-7=2.7(35)x-0.5=4.3(36)x-5.3=3.1(37)40+x=57(38)99+x=104(39)88+x=140(40)67+x=107(41)30+x=107(42)7+x=55(43)56+x=109(44)51+x=62(45)32+x=59(46)71-x=50(47)42-x=26(48)45-x=41(49)67-x=11(50)48-x=27(51)69-x=56(52)48-x=26(53)84-x=70(54)57-x=33(55)5.9+x=13(56)5+x=9.4(57)1.5+x=1.8(58)7.8+x=12(59)6.9+x=10(60)3.6+x=4.3(61)3.6+x=12.7(62)9.9+x=12.2(63)7+x=9.9(64)8.5-x=7.5(65)5.9-x=4.2(66)7.3-x=5.3(67)9.9-x=8.3(68)7.7-x=5.3(69)9.7-x=6.9(70)8.7-x=3.9(71)6.1-x=1.7(72)7.8-x=2.6(73)6x=138(74)2x=104(75)35x=70(76)8x=80(77)2x=134(78)35x=105(79)39x=117(80)47x=94(81)6x=132(82)1.2x=6(83)0.9x=18.9(84)0.2x=7.8(85)3.3x=13.2(86)5.2x=15.6(87)0.4x=15.2(88)0.3x=6(89)0.6x=9(90)0.2x=10.8(91)31x=6.2(92)2x=17.8(93)7x=18.9(94)31x=12.4(95)11x=5.5(96)4x=17.6(97)7x=11.9(98)65x=13(99)9x=11.7(100)63÷x=21(101)12÷x=6(102)126÷x=3(103)50÷x=5(104)186÷x=2(105)168÷x=12(106)30÷x=2(107)168÷x=2(108)170÷x=5(109)8.1÷x=0.9(110)8.6÷x=4.3(111)9.6÷x=3.2(112)9.9÷x=0.3(113)9÷x=0.2(114)9÷x=0.9(115)6÷x=1(116)10.5÷x=2.1(117)13÷x=1(118)x÷30=5(119)x÷60=2(120)x÷92=2(121)x÷7=4(122)x÷23=5(123)x÷18=10(124)x÷79=2(125)x÷17=5(126)x÷44=3(127)x÷6=1.7(128)x÷5=2(129)x÷17=0.8(130)x÷23=0.5(131)x÷23=0.6(132)x÷25=0.3(133)x÷21=0.7(134)x÷29=0.2(135)x÷12=1.2(136)12x+52=88(137)10x+11=161(138)2x+54=70(139)18x+11=173(140)2x+37=129(141)4x+23=179(142)5x+52=82(143)3x+33=183(144)2x+58=208(145)37x-12=99(146)41x-54=110(147)19x-28=105(148)17x-27=58(149)30x-58=32(150)67x-28=106(151)42x-18=108(152)37x-39=146(153)13x-49=68(154)4x+3.1=17.9(155)46x+5=14.2(156)2x+4.1=9.7(157)10x+1.1=6.1(158)3x+2.7=17.4(159)2x+2.2=14.2(160)90x+2.8=20.8(161)16x+5.4=24.6(162)2x+2.7=6.1(163)0.5x+5.9=9.9(164)0.3x+3.6=9.3(165)3.9x+1.5=13.2(166)0.4x+2.1=6.9(167)0.4x+2.1=18.9(168)1.2x+5=9.8(169)5.4x+2=18.2(170)0.5x+1.3=17.3(171)4x+2=10(172)4x-1.8=17.8(173)41x-5.7=6.6(174)2x-2.2=9.6(175)12x-4.5=14.7(176)43x-1.3=15.9(177)21x-2.2=2(178)19x-1.3=8.2(179)23x-1.5=3.1(180)7x-2.1=14.7(181)1.6x-4.4=5.2(182)1.1x-2.1=8.9(183)3x-2.6=3.4(184)2.4x-3=11.4(185)2.3x-1.6=5.3(186)5.6x-1.6=9.6(187)2.7x-4.4=14.5(188)0.2x-3.4=6.8(189)2x-5.3=8.7(190)172+6x=196(191)183+33x=381(192)188+38x=302(193)107+3x=194(194)91+16x=267(195)161+9x=278(196)18+21x=102(197)66+2x=162(198)136+12x=196(199)175-63x=49(200)137-38x=23(201)95-5x=85(202)196-17x=111(203)137-2x=89(204)171-18x=27(205)90-13x=12(206)101-11x=46(207)132-17x=30(208)13.6+6.6x=26.8(209)15.6+0.6x=28.8(210)16.3+0.4x=30.3(211)2.5+6x=20.5(212)8.1+0.3x=23.4(213)9.5+0.2x=28.3(214)18+2.9x=29.6(215)8.9+0.2x=16.9(216)4.8+0.5x=23.8(217)8.1+14x=27.7(218)18.6+8x=33.8(219)5.7+16x=23.3(220)7.2+3x=18(221)5.6+6x=16.4(222)8.4+9x=12(223)16.7+2x=25.1(224)8.5+70x=22.5(225)9.4+32x=28.6(226)12.3-1.8x=1.5(227)10.4-0.2x=5(228)14.9-0.2x=2.9(229)14.2-1.4x=7.2(230)8.6-0.9x=4.1(231)15.9-0.5x=14.4(232)12.6-3.2x=6.2(233)10.3-0.3x=4.9(234)9.6-1.7x=6.2(235)15.1-2x=14.5(236)16.5-20x=10.5(237)19.6-50x=9.6(238)11.1-2x=9.7(239)13.5-36x=2.7(240)19-48x=9.4(241)16.8-6x=9.6(242)14-23x=4.8(243)11.1-4x=5.5(244)33x÷11=6(245)11x÷5=22(246)4x÷5=40(247)4x÷12=12(248)40x÷16=5(249)42x÷14=6(250)24x÷18=8(251)2x÷11=6(252)11x÷22=6(253)0.7x÷28=0.4(254)0.3x÷5=2.1(255)2.8x÷4=1.4(256)1.6x÷28=0.4(257)1.6x÷8=0.8(258)1.5x÷4=4.5(259)0.5x÷2=3(260)0.3x÷6=0.9(261)4.5x÷10=0.9(262)45x÷15=0.6(263)49x÷98=0.2(264)2x÷5=2(265)3x÷15=0.6(266)40x÷10=1.6(267)5x÷2=2.5(268)3x÷4=3.9(269)3x÷8=1.2(270)16x÷4=4.4(271)4x+3x=98(272)18x+6x=168(273)2x+7x=81(274)7x+3x=210(275)2x+3x=325(276)2x+15x=102(277)10x+12x=198(278)7x+5x=24(279)9x+2x=220(280)13x-9x=12(281)18x-13x=30(282)12x-3x=135(283)18x-11x=35(284)14x-3x=88(285)15x-5x=40(286)16x-5x=22(287)8x-4x=72(288)17x-10x=63(289)6.7x+9.6x=114.1(290)1x+2.8x=98.8(291)5.3x+1.3x=99(292)6x+5.3x=135.6(293)1.4x+3.5x=63.7(294)1.4x+5.6x=63(295)8.2x+6.4x=29.2(296)9.7x+6.3x=96(297)7.3x+1.1x=33.6(298)3.6x-3x=1.8(299)3.9x-1x=58(300)6.4x-2.4x=52(301)9.1x-2.3x=40.8(302)4.5x-2.4x=31.5(303)7.6x-0.4x=50.4(304)1.3x-0.2x=71.5(305)7.1x-6x=4.4(306)5.2x-2.8x=33.6(307)7x+5x+11=263(308)10x+18x+19=75(309)11x+12x+26=164(310)8x+11x+42=137(311)5x+11x+13=237(312)9x+7x+19=83(313)5x+15x+35=215(314)11x+18x+13=274(315)13x+19x+44=268(316)7x+13x-27=153(317)13x+18x-43=50(318)5x+17x-33=209(319)19x+11x-5=55(320)5x+8x-3=244(321)7x+8x-23=127(322)4x+5x-20=88(323)8x+7x-31=344(324)3x+13x-44=36(325)14x-4x+14=94(326)12x-7x+31=86(327)12x-9x+18=51(328)14x-2x+46=118(329)17x-7x+41=61(330)8x-6x+13=47(331)19x-2x+39=141(332)17x-13x+41=53(333)16x-2x+25=165(334)13x-2x-17=71(335)19x-14x-4=26(336)17x-9x-46=10(337)13x-9x-18=42(338)19x-13x-15=15(339)14x-3x-9=123(340)9x-2x-9=131(341)10x-3x-38=53(342)10x-2x-38=114(343)4.5x+9.5x+3.3=101.3(344)0.8x+8.7x+1=67.5(345)8.6x+4.9x+1.4=28.4(346)3.2x+5.1x+4.4=112.3(347)8.4x+1.2x+1.1=68.3(348)3.5x+2.1x+3.9=82.3(349)1.6x+1.3x+1.7=85.8(350)0.4x+1.7x+0.2=109.4(351)1.9x+2.5x+0.2=97(352)93x+25x+1.9=72.7(353)7x+11x+1.4=57.2(354)18x+52x+2.8=100.8(355)5x+99x+1.6=32.8(356)69x+61x+3.4=68.4(357)42x+29x+1.4=115(358)25x+17x+3.1=28.3(359)58x+63x+4.8=162.1(360)60x+46x+4.8=57.8(361)1.4x+0.2x-2.2=79.4(362)5.9x+2.6x-1.1=126.4(363)1.1x+3.2x-4=125(364)5.5x+7.9x-4.7=142.7(365)0.7x+3.1x-2.8=50.4(366)0.2x+0.6x-4.7=8.1(367)0.4x+4.7x-2.6=68.8(368)1.1x+0.9x-4=146(369)0.7x+1x-1.6=88.5(370)75x+81x-4=136.4(371)4x+16x-4.9=37.1(372)46x+3x-2.3=100.6(373)89x+85x-0.3=69.3(374)17x+28x-1.4=39.1(375)19x+46x-3=101(376)67x+27x-2=92(377)18x+23x-0.4=65.2(378)66x+46x-4.6=107.4(379)9.7x-0.2x+3.8=89.3(380)7.5x-4.9x+0.7=29.3(381)1.1x-0.3x+0.7=46.3(382)5x-3.1x+2.6=40.6(383)0.7x-0.4x+4=7(384)3.3x-3.1x+0.4=2.2(385)6.4x-3.6x+1.5=40.7(386)3.4x-1.9x+2.3=15.8(387)3.7x-0.9x+3.9=15.1(388)86x-49x+4.5=26.7(389)93x-60x+3.9=33.6(390)90x-30x+4.3=52.3(391)65x-2x+2.8=84.7(392)28x-15x+3.5=34.7(393)77x-73x+0.7=2.3(394)81x-12x+0.4=76.3(395)54x-11x+4.5=43.2(396)87x-59x+2.6=16.6(397)3x-1.7x-1.6=36.1(398)8.8x-7.7x-3.3=6.6(399)9.9x-4.8x-0.7=29.9(400)3.2x-0.4x-1.5=51.7(401)2.7x-1.3x-4.3=2.7(402)2.7x-0.2x-0.2=72.3(403)4.4x-4x-1.4=4.2(404)5.1x-2.2x-2.3=29.6(405)6.8x-0.8x-0.4=65.6(406)18x-9x-1.2=17.7(407)12x-5x-1.2=48.5(408)12x-4x-0.6=12.2(409)25x-9x-3.5=30.1(410)59x-11x-0.4=14(411)57x-29x-4=10(412)47x-16x-3.8=8.6(413)93x-77x-0.9=10.3(414)61x-17x-4.7=4.1(415)5x+10×17=205(416)3x+4×43=211(417)4x+68×2=204(418)29x+18×6=253(419)2x+36×5=206(420)9x+16×12=309(421)27x+87×2=228(422)9x+8×14=292(423)8x+4×29=212(424)2x-27×2=80(425)28x-3×34=94(426)5x-14×5=130(427)6x-9×7=93(428)6x-2×23=50(429)6x-35×5=11(430)25x-30×2=40(431)6x-7×8=28(432)20x-12×10=20(433)0.9x+0.3×11=22.2(434)0.4x+2.6×6=21.6(435)0.9x+2.1×2=13.2(436)4.9x+1.6×2=13(437)1x+0.3×8=18.4(438)0.2x+0.8×22=18.4(439)4.7x+1.5×5=26.3(440)1.2x+2.1×4=10.8(441)1x+0.6×2=7.2(442)4x+22×0.5=13.8(443)3x+20×0.5=17.2(444)2x+31×0.4=13.2(445)3x+16×0.4=13.3(446)47x+32×0.2=25.2(447)3x+47×0.2=11.2(448)29x+27×0.7=36.3(449)10x+40×0.3=20(450)16x+37×0.2=12.2(451)3.8x-1.1×12=2(452)3.2x-1.1×12=2.8(453)1.3x-0.8×10=5(454)2.2x-0.2×25=1.6(455)2.2x-0.3×38=1.8(456)0.4x-0.2×15=5(457)0.6x-1.1×4=5.8(458)1.3x-0.2×29=2(459)1.3x-1.6×4=9.2(460)44x-3×2.3=6.3(461)33x-2×2.7=4.5(462)8x-23×0.3=4.3(463)5x-3×1.5=2.5(464)3x-21×0.2=10.2(465)25x-12×1.1=6.8(466)36x-20×0.6=6(467)4x-16×0.4=1.6(468)17x-22×0.8=1.1(469)4(17x+5)=156(470)5(2x+28)=190(471)7(x+4)=105(472)2(13x+21)=172(473)3(4x+3)=105(474)3(x+32)=138(475)4(7x+34)=192(476)2(14x+24)=160(477)3(3x+42)=171(478)5(4x-17)=155(479)10(3x-30)=180(480)5(2x-41)=135(481)4(5x-7)=152(482)15(2x-32)=180(483)2(3x-30)=60(484)2(28x-42)=196(485)3(23x-3)=198(486)7(5x-35)=105(487)4(0.2x+0.4)=36.8(488)6(1.3x+5.2)=46.8(489)2(7.8x+0.2)=31.6(490)5(1.3x+4.6)=36(491)4(0.4x+3.8)=36(492)3(0.4x+5.8)=45(493)16(0.2x+0.5)=43.2(494)2(0.3x+2.1)=27.6(495)7(0.4x+5.1)=46.9(496)3(3.4x-1.8)=25.2(497)14(3.8x-5.9)=23.8(498)6(3.8x-4.1)=21(499)3(5x-7)=9(500)13(0.2x-0.8)=20.8(501)12(1.3x-1.2)=48(502)9(1.6x-8.6)=37.8(503)5(1.2x-3.1)=26.5(504)5(4.2x-9.2)=17(505)(16x+6)÷14=5(506)(13x+44)÷2=100(507)(11x+35)÷32=9(508)(12x+12)÷6=8(509)(11x+43)÷4=19(510)(14x+42)÷2=112(511)(9x+15)÷3=35(512)(16x+18)÷27=6(513)(2x+47)÷19=5(514)(10x-6)÷3=78(515)(13x-30)÷22=1(516)(19x-48)÷4=26(517)(15x-46)÷4=56(518)(14x-14)÷15=14(519)(7x-28)÷12=7(520)(10x-42)÷6=23(521)(8x-7)÷41=1(522)(15x-42)÷33=1(523)(6.2x+5.6)÷28=3.3(524)(7.7x+4.8)÷2=17.8(525)(4.2x+2.7)÷17=0.9(526)(2.3x+6.7)÷2=11.4(527)(2.2x+9.2)÷5=3.6(528)(3x+5)÷5=10(529)(4.7x+2.9)÷2=27.3(530)(1.4x+7.8)÷11=1.6(531)(5.9x+3.8)÷28=1.4(532)(7x-5.6)÷4=16.1(533)(6.8x-2.2)÷13=1.4(534)(0.9x-1.3)÷19=0.5(535)(4.6x-6.6)÷3=11.6(536)(3.2x-9.5)÷11=0.3(537)(5.6x-8.3)÷31=1.9(538)(8.3x-9.8)÷17=0.4(539)(7.3x-3.2)÷3=11.1(540)(1.2x-8.3)÷37=0.1参考答案(1)x=82(2)x=13(3)x=91(4)x=66(5)x=95(6)x=9(7)x=64(8)x=47(9)x=93(10)x=85(11)x=61(12)x=73(13)x=30(14)x=93(15)x=94(16)x=68(17)x=90(18)x=67(19)x=3.8(20)x=6.1(21)x=4.6(22)x=4.2(23)x=2.8(24)x=8.7(25)x=2.6(26)x=8(27)x=3.2(28)x=3.7(29)x=9.7(30)x=7.9(31)x=8.1(32)x=6.8(33)x=3.6(34)x=9.7(35)x=4.8(36)x=8.4(37)x=17(38)x=5(39)x=52(40)x=40(41)x=77(42)x=48(43)x=53(44)x=11(45)x=27(46)x=21(47)x=16(48)x=4(49)x=56(50)x=21(51)x=13(52)x=22(53)x=14(54)x=24(55)x=7.1(56)x=4.4(57)x=0.3(58)x=4.2(59)x=3.1(60)x=0.7(61)x=9.1(62)x=2.3(63)x=2.9(64)x=1(65)x=1.7(66)x=2(67)x=1.6(68)x=2.4(69)x=2.8(70)x=4.8(71)x=4.4(72)x=5.2(73)x=23(74)x=52(75)x=2(76)x=10(77)x=67(78)x=3(79)x=3(80)x=2(81)x=22(82)x=5(83)x=21(84)x=39(85)x=4(86)x=3(87)x=38(88)x=20(89)x=15(90)x=54(91)x=0.2(92)x=8.9(93)x=2.7(94)x=0.4(95)x=0.5(96)x=4.4(97)x=1.7(98)x=0.2(99)x=1.3(100)x=3(101)x=2(102)x=42(103)x=10(104)x=93(105)x=14(106)x=15(107)x=84(108)x=34(109)x=9(110)x=2(111)x=3(112)x=33(113)x=45(114)x=10(115)x=6(116)x=5(117)x=13(118)x=150(119)x=120(120)x=184(121)x=28(122)x=115(123)x=180(124)x=158(125)x=85(126)x=132(127)x=10.2(128)x=10(129)x=13.6(130)x=11.5(131)x=13.8(132)x=7.5(133)x=14.7(134)x=5.8(135)x=14.4(136)x=3(137)x=15(138)x=8(139)x=9(140)x=46(141)x=39(142)x=6(143)x=50(144)x=75(145)x=3(146)x=4(147)x=7(148)x=5(149)x=3(150)x=2(151)x=3(152)x=5(153)x=9(154)x=3.7(155)x=0.2(156)x=2.8(157)x=0.5(158)x=4.9(159)x=6(160)x=0.2(161)x=1.2(162)x=1.7(163)x=8(164)x=19(165)x=3(166)x=12(167)x=42(168)x=4(169)x=3(170)x=32(171)x=2(172)x=4.9(173)x=0.3(174)x=5.9(175)x=1.6(176)x=0.4(177)x=0.2(178)x=0.5(179)x=0.2(180)x=2.4(181)x=6(182)x=10(183)x=2(184)x=6(185)x=3(186)x=2(187)x=7(188)x=51(189)x=7(190)x=4(191)x=6(192)x=3(193)x=29(194)x=11(195)x=13(196)x=4(197)x=48(198)x=5(199)x=2(200)x=3(201)x=2(202)x=5(203)x=24(204)x=8(205)x=6(206)x=5(207)x=6(208)x=2(209)x=22(210)x=35(211)x=3(212)x=51(213)x=94(214)x=4(215)x=40(216)x=38(217)x=1.4(218)x=1.9(219)x=1.1(220)x=3.6(221)x=1.8(222)x=0.4(223)x=4.2(224)x=0.2(225)x=0.6(226)x=6(227)x=27(228)x=60(229)x=5(230)x=5(231)x=3(232)x=2(233)x=18(234)x=2(235)x=0.3(236)x=0.3(237)x=0.2(238)x=0.7(239)x=0.3(240)x=0.2(241)x=1.2(242)x=0.4(243)x=1.4(244)x=2(245)x=10(246)x=50(247)x=36(248)x=2(249)x=2(250)x=6(251)x=33(252)x=12(253)x=16(254)x=35(255)x=2(256)x=7(257)x=4(258)x=12(259)x=12(260)x=18(261)x=2(262)x=0.2(263)x=0.4(264)x=5(265)x=3(266)x=0.4(267)x=1(268)x=5.2(269)x=3.2(270)x=1.1(271)x=14(272)x=7(273)x=9(274)x=21(275)x=65(276)x=6(277)x=9(278)x=2(279)x=20(280)x=3(281)x=6(282)x=15(283)x=5(284)x=8(285)x=4(286)x=2(287)x=18(288)x=9(289)x=7(290)x=26(291)x=15(292)x=12(293)x=13(294)x=9(295)x=2(296)x=6(297)x=4(298)x=3(299)x=20(300)x=13(301)x=6(302)x=15(303)x=7(304)x=65(305)x=4(306)x=14(307)x=21(308)x=2(309)x=6(310)x=5(311)x=14(312)x=4(313)x=9(314)x=9(315)x=7(316)x=9(317)x=3(318)x=11(319)x=2(320)x=19(321)x=10(322)x=12(323)x=25(324)x=5(325)x=8(326)x=11(327)x=11(328)x=6(329)x=2(330)x=17(331)x=6(332)x=3(333)x=10(334)x=8(335)x=6(336)x=7(337)x=15(338)x=5(339)x=12(340)x=20(341)x=13(342)x=19(343)x=7(344)x=7(345)x=2(346)x=13(347)x=7(348)x=14(349)x=29(350)x=52(351)x=22(352)x=0.6(353)x=3.1(354)x=1.4(355)x=0.3(356)x=0.5(357)x=1.6(358)x=0.6(359)x=1.3(360)x=0.5(361)x=51(362)x=15(363)x=30(364)x=11(365)x=14(366)x=16(367)x=14(368)x=75(369)x=53(370)x=0.9(371)x=2.1(372)x=2.1(373)x=0.4(374)x=0.9(375)x=1.6(376)x=1(377)x=1.6(378)x=1(379)x=9(380)x=11(381)x=57(382)x=20(383)x=10(384)x=9(385)x=14(386)x=9(387)x=4(388)x=0.6(389)x=0.9(390)x=0.8(391)x=1.3(3