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+55=120(2)x+47=136(3)x+8=64(4)x+84=133(5)x+91=100(6)x+91=117(7)x+39=114(8)x+85=135(9)x+35=124(10)x-59=13(11)x-18=34(12)x-34=58(13)x-38=47(14)x-34=55(15)x-55=30(16)x-21=68(17)x-3=28(18)x-18=58(19)x+8=13.7(20)x+1.9=6.9(21)x+2.8=8.5(22)x+9.3=11.2(23)x+1.6=10.3(24)x+1.1=9.8(25)x+2.6=4(26)x+3.5=5.3(27)x+1.2=2.7(28)x-5.1=1.9(29)x-3.9=5.3(30)x-0.7=7.1(31)x-6.4=2.4(32)x-1.6=3.9(33)x-3.9=2.2(34)x-0.3=8.5(35)x-3.2=4.3(36)x-4.9=2.8(37)29+x=108(38)56+x=86(39)78+x=109(40)26+x=90(41)67+x=165(42)33+x=58(43)23+x=69(44)36+x=97(45)49+x=148(46)72-x=69(47)83-x=72(48)95-x=91(49)27-x=13(50)75-x=38(51)35-x=25(52)38-x=20(53)93-x=75(54)89-x=31(55)3.7+x=9(56)5.8+x=10.8(57)3.8+x=12.2(58)4.8+x=10.4(59)7.1+x=14.4(60)4.3+x=7.4(61)7.4+x=11.1(62)9.1+x=12.7(63)7.8+x=11.8(64)8.5-x=4.4(65)6.5-x=6.3(66)6.1-x=2.2(67)2.5-x=2.3(68)9.1-x=2.7(69)3.7-x=1.8(70)6.6-x=2.9(71)9.7-x=5.1(72)5.5-x=1.8(73)2x=62(74)2x=20(75)4x=24(76)3x=30(77)16x=96(78)2x=46(79)86x=172(80)3x=159(81)3x=129(82)0.2x=14.4(83)0.2x=6.4(84)9.1x=18.2(85)0.6x=9.6(86)0.6x=12.6(87)2.7x=8.1(88)0.3x=6.9(89)2.9x=14.5(90)0.2x=7.2(91)9x=6.3(92)3x=19.8(93)36x=7.2(94)31x=18.6(95)4x=3.6(96)2x=13.2(97)4x=16.4(98)5x=2(99)3x=0.9(100)105÷x=35(101)136÷x=4(102)40÷x=5(103)138÷x=3(104)196÷x=7(105)96÷x=48(106)54÷x=6(107)112÷x=7(108)77÷x=11(109)9÷x=4.5(110)14÷x=0.7(111)18.3÷x=0.3(112)3.3÷x=0.3(113)8.6÷x=4.3(114)6.4÷x=0.8(115)19.8÷x=1.1(116)4.4÷x=0.4(117)16.8÷x=1.4(118)x÷3=14(119)x÷33=5(120)x÷47=2(121)x÷32=6(122)x÷60=3(123)x÷39=3(124)x÷4=17(125)x÷11=9(126)x÷26=3(127)x÷35=0.2(128)x÷4=4.6(129)x÷12=0.3(130)x÷9=0.2(131)x÷4=4.2(132)x÷24=0.4(133)x÷5=1(134)x÷16=0.8(135)x÷3=3(136)43x+16=102(137)9x+36=54(138)96x+42=234(139)65x+52=182(140)2x+31=171(141)7x+16=212(142)7x+49=210(143)3x+40=223(144)7x+14=182(145)15x-15=165(146)4x-28=40(147)3x-47=79(148)2x-23=165(149)21x-27=99(150)16x-41=71(151)65x-20=175(152)13x-47=83(153)6x-35=145(154)16x+3=20.6(155)44x+3.8=12.6(156)11x+4.6=18.9(157)44x+1.9=15.1(158)35x+1.3=18.8(159)26x+2.2=17.8(160)11x+1.9=8.5(161)33x+1.2=14.4(162)40x+2.3=14.3(163)1.6x+2.8=22(164)6.9x+4.5=18.3(165)8.7x+3.6=21(166)3.6x+2.3=16.7(167)0.2x+5.2=17(168)3.9x+2.5=18.1(169)0.3x+3.4=16.3(170)0.2x+1.6=8(171)4.6x+1.2=19.6(172)50x-3.5=6.5(173)4x-3.3=11.9(174)7x-2.3=6.8(175)13x-1.2=7.9(176)6x-2=13(177)41x-4.4=12(178)4x-3.3=10.3(179)26x-1.6=14(180)33x-3.4=16.4(181)2.6x-5.5=12.7(182)0.2x-1.4=8.6(183)1.5x-3.1=5.9(184)0.6x-1.3=3.5(185)3.3x-1.4=5.2(186)0.4x-3.6=4.4(187)1.2x-1.2=10.8(188)0.9x-4.5=2.7(189)0.5x-2.2=8.3(190)180+2x=242(191)58+6x=172(192)152+2x=266(193)174+10x=374(194)100+11x=199(195)124+3x=244(196)48+67x=182(197)184+26x=236(198)134+3x=140(199)159-29x=101(200)169-3x=55(201)109-33x=43(202)142-2x=124(203)144-9x=99(204)145-2x=97(205)154-25x=54(206)118-19x=80(207)196-4x=64(208)2.9+3.6x=17.3(209)7.4+0.2x=9.2(210)18.9+0.7x=32.2(211)7.8+7.8x=23.4(212)17.5+1.8x=21.1(213)3+4.3x=11.6(214)9.4+2.8x=26.2(215)7.6+0.2x=20.8(216)18.5+0.2x=22.3(217)10.2+18x=24.6(218)8.8+40x=20.8(219)3.5+8x=22.7(220)8.6+33x=28.4(221)4.7+47x=23.5(222)1.3+26x=11.7(223)13.5+2x=20.9(224)4.5+2x=10.9(225)13+2x=18.6(226)19.6-0.2x=4.4(227)8.8-0.4x=5.6(228)12.2-0.4x=3.4(229)12.2-4.3x=3.6(230)18.9-4.1x=10.7(231)17-0.2x=3.8(232)14.3-0.8x=1.5(233)14-1.6x=4.4(234)5.4-0.2x=4.6(235)7.6-7x=5.5(236)14.4-2x=11.8(237)18.6-8x=5.8(238)14.3-3x=3.5(239)11.2-9x=8.5(240)9.8-5x=7.8(241)17-32x=4.2(242)4.8-9x=2.1(243)16.5-41x=8.3(244)15x÷6=25(245)2x÷3=14(246)21x÷63=3(247)2x÷26=7(248)6x÷2=33(249)4x÷8=3(250)4x÷8=21(251)2x÷4=22(252)3x÷12=9(253)7.2x÷24=0.6(254)0.8x÷96=0.2(255)3.6x÷16=0.9(256)1x÷5=2.4(257)0.2x÷19=1(258)0.3x÷12=0.5(259)0.8x÷12=1.2(260)0.5x÷3=2.5(261)0.5x÷9=1(262)7x÷3=2.8(263)44x÷66=0.2(264)4x÷3=4(265)8x÷3=1.6(266)20x÷14=1(267)7x÷3=3.5(268)3x÷36=0.2(269)2x÷4=3.6(270)3x÷21=0.6(271)10x+9x=380(272)11x+17x=224(273)9x+2x=220(274)2x+3x=290(275)10x+2x=156(276)16x+7x=253(277)9x+14x=184(278)4x+3x=259(279)8x+11x=266(280)19x-14x=20(281)17x-7x=90(282)12x-5x=21(283)14x-6x=72(284)9x-5x=60(285)7x-2x=120(286)8x-2x=102(287)17x-13x=44(288)18x-8x=60(289)6.3x+9.6x=47.7(290)4.4x+2.5x=124.2(291)2.7x+2.5x=171.6(292)4.5x+7.1x=92.8(293)8.1x+7.7x=158(294)4.9x+6x=21.8(295)6.7x+1x=23.1(296)9.6x+6.3x=143.1(297)1.5x+2.1x=108(298)8.7x-8.1x=4.8(299)4x-3.8x=2.2(300)7.3x-0.9x=83.2(301)7.2x-3.1x=49.2(302)6.6x-4.2x=9.6(303)8.3x-4.6x=14.8(304)9.5x-7.8x=10.2(305)5.1x-3.3x=19.8(306)9x-0.2x=96.8(307)17x+14x+43=353(308)6x+7x+46=293(309)12x+8x+7=47(310)8x+5x+7=293(311)11x+4x+32=227(312)7x+15x+22=132(313)13x+5x+35=233(314)15x+6x+47=89(315)4x+9x+10=283(316)2x+8x-28=162(317)4x+3x-37=54(318)2x+12x-34=92(319)6x+2x-43=221(320)19x+11x-39=81(321)13x+3x-48=176(322)7x+2x-25=110(323)10x+9x-3=320(324)4x+10x-28=154(325)5x-2x+43=157(326)12x-3x+20=74(327)11x-6x+31=81(328)18x-7x+16=60(329)12x-2x+23=93(330)8x-4x+24=76(331)15x-13x+14=30(332)19x-15x+47=71(333)11x-3x+15=151(334)7x-4x-37=29(335)12x-2x-14=126(336)16x-9x-45=11(337)18x-6x-23=85(338)11x-2x-6=156(339)13x-2x-4=40(340)15x-5x-46=74(341)16x-4x-5=67(342)8x-4x-4=60(343)4.8x+5.7x+4.2=172.2(344)1.1x+6.8x+2.4=105.1(345)2.7x+1.9x+0.8=65.2(346)3.9x+0.8x+0.4=94.4(347)1.2x+0.8x+4.9=26.9(348)1.8x+1.5x+0.8=70.1(349)3.9x+1.4x+4.3=73.2(350)3x+4.9x+0.4=111(351)6.9x+8.5x+1.6=78.6(352)2x+61x+4.5=99(353)29x+4x+0.4=53.2(354)21x+17x+0.9=152.9(355)37x+46x+1.1=150.5(356)86x+72x+3.2=161.2(357)41x+36x+0.9=170.3(358)64x+55x+3.9=39.6(359)16x+61x+2.3=63.9(360)95x+99x+3.9=42.7(361)2.9x+4.6x-3.5=94(362)8.7x+3.5x-2.8=70.4(363)0.3x+0.8x-3.6=48.1(364)4.9x+2x-2.4=45.9(365)1.8x+7.4x-0.7=63.7(366)7.4x+8.9x-3.1=176.2(367)1.7x+7.4x-0.2=81.7(368)1.4x+8.2x-1.2=114(369)8.2x+4.7x-0.4=141.5(370)35x+50x-0.6=126.9(371)77x+92x-3.3=81.2(372)6x+62x-1.1=26.1(373)62x+25x-1.3=33.5(374)79x+28x-0.7=31.4(375)14x+30x-2.3=85.7(376)15x+80x-0.2=37.8(377)87x+44x-0.9=51.5(378)65x+15x-4.7=27.3(379)9.2x-8.8x+4.1=6.1(380)6.6x-4.3x+3.7=35.9(381)4.9x-2.1x+4.5=32.5(382)7.5x-2.8x+2.8=21.6(383)9.5x-5x+0.6=36.6(384)1.1x-0.2x+4.5=66.6(385)4.9x-0.6x+2.1=10.7(386)4.7x-2.6x+4.6=42.4(387)8x-6.1x+3.1=20.2(388)51x-5x+3.7=81.9(389)66x-8x+3.2=78.6(390)85x-52x+1.1=14.3(391)93x-67x+2.4=28.4(392)51x-22x+0.3=6.1(393)58x-48x+1.3=5.3(394)62x-55x+3.1=5.2(395)57x-42x+2.2=8.2(396)46x-31x+4.8=30.3(397)4x-3.8x-3.7=1.3(398)8.4x-4.6x-0.6=29.8(399)9.9x-2.1x-1.8=68.4(400)3.4x-0.2x-0.9=34.3(401)6.4x-6x-1.3=3.1(402)6.5x-5.4x-4.9=11.6(403)7.2x-5.7x-4.5=10.5(404)0.5x-0.2x-4.5=15.3(405)1.6x-0.8x-2.6=26.2(406)59x-35x-4.2=22.2(407)87x-42x-1.6=29.9(408)82x-73x-1.8=9(409)98x-22x-3=57.8(410)52x-26x-3.4=12.2(411)66x-15x-2.1=13.2(412)12x-9x-0.7=18.5(413)14x-7x-1.6=11(414)60x-39x-3.4=17.6(415)5x+10×13=230(416)6x+25×8=260(417)24x+2×93=354(418)3x+12×8=177(419)5x+6×5=190(420)14x+6×27=246(421)6x+41×3=261(422)15x+9×10=285(423)13x+7×19=198(424)20x-3×36=72(425)11x-14×6=103(426)17x-25×3=61(427)9x-14×4=70(428)8x-2×62=76(429)22x-8×4=56(430)15x-48×2=24(431)3x-2×15=27(432)3x-9×12=12(433)1.7x+0.9×4=20.6(434)4.3x+1.3×7=26.3(435)0.6x+1.5×13=38.7(436)0.3x+1.3×7=18.4(437)1x+2.9×6=33.4(438)0.3x+0.3×43=23.4(439)1.1x+0.4×31=26.7(440)1.3x+2.7×2=23.6(441)2.1x+0.7×10=19.6(442)11x+2×2.3=14.5(443)20x+2×4.8=13.6(444)11x+11×0.7=13.2(445)42x+6×2.9=34.2(446)8x+5×2.3=21.1(447)3x+9×1.3=21.6(448)8x+28×0.6=28.8(449)9x+19×0.8=18.8(450)2x+25×0.4=18.4(451)1.1x-3.6×2=3.8(452)2x-0.5×26=1(453)3.9x-0.9×8=8.4(454)0.3x-0.4×20=6.4(455)0.5x-0.6×10=6(456)1x-1.2×11=1.8(457)3.8x-0.3×43=6.1(458)0.9x-0.9×2=4.5(459)1.4x-1×14=4.2(460)43x-31×0.3=3.6(461)33x-4×1.4=1(462)3x-3×0.2=10.2(463)14x-14×0.4=1.4(464)13x-5×0.8=14.2(465)7x-45×0.3=5.4(466)5x-18×0.5=5.5(467)46x-7×0.5=5.7(468)43x-2×0.9=11.1(469)3(2x+28)=186(470)8(3x+5)=88(471)8(x+10)=200(472)2(2x+36)=172(473)2(14x+2)=200(474)2(3x+4)=38(475)3(12x+32)=168(476)4(5x+2)=48(477)3(2x+2)=48(478)12(26x-42)=120(479)3(4x-29)=33(480)3(4x-41)=141(481)16(8x-20)=192(482)2(13x-33)=90(483)4(14x-11)=68(484)8(7x-44)=96(485)12(12x-46)=168(486)16(22x-34)=160(487)2(0.2x+9.5)=36.6(488)5(1.7x+0.4)=44.5(489)3(1.1x+3.2)=29.4(490)3(0.6x+1)=33.6(491)5(0.2x+6.2)=44(492)3(0.9x+7.3)=27.3(493)5(x+0.4)=27(494)7(0.3x+0.4)=30.1(495)2(0.9x+4.1)=35.2(496)4(2x-1.2)=43.2(497)2(5.3x-5.8)=20.2(498)4(0.3x-9)=10.8(499)3(1.8x-1.3)=6.9(500)28(1.8x-4.3)=30.8(501)10(3.3x-3.2)=34(502)7(2.9x-8.5)=42(503)20(0.2x-1.8)=40(504)2(4.9x-3.1)=33(505)(13x+14)÷15=20(506)(13x+35)÷12=17(507)(2x+22)÷10=6(508)(16x+16)÷16=8(509)(5x+21)÷2=23(510)(4x+42)÷15=6(511)(3x+6)÷15=5(512)(12x+21)÷21=5(513)(15x+25)÷5=29(514)(7x-9)÷5=29(515)(19x-32)÷44=1(516)(14x-24)÷2=9(517)(12x-6)÷9=18(518)(13x-23)÷17=4(519)(4x-12)÷42=2(520)(14x-6)÷6=20(521)(9x-39)÷3=26(522)(14x-8)÷2=94(523)(4.8x+9)÷6=9.5(524)(2.5x+9.5)÷15=2.3(525)(0.9x+2.6)÷7=1.4(526)(0.5x+8)÷30=0.4(527)(0.3x+6.5)÷2=5.5(528)(4x+1.5)÷33=1.5(529)(5x+0.2)÷3=13.4(530)(7.2x+0.6)÷30=1.7(531)(1.3x+3.9)÷5=1.3(532)(5.7x-3.3)÷4=17.7(533)(0.8x-1.5)÷3=4.3(534)(6.1x-1.5)÷14=1.2(535)(3.4x-2.2)÷18=2.9(536)(2.2x-1.6)÷14=1.3(537)(1.2x-8.5)÷7=0.5(538)(3.2x-4.6)÷31=1.4(539)(8.4x-9.9)÷17=0.9(540)(4x-8.8)÷37=1.6参考答案(1)x=65(2)x=89(3)x=56(4)x=49(5)x=9(6)x=26(7)x=75(8)x=50(9)x=89(10)x=72(11)x=52(12)x=92(13)x=85(14)x=89(15)x=85(16)x=89(17)x=31(18)x=76(19)x=5.7(20)x=5(21)x=5.7(22)x=1.9(23)x=8.7(24)x=8.7(25)x=1.4(26)x=1.8(27)x=1.5(28)x=7(29)x=9.2(30)x=7.8(31)x=8.8(32)x=5.5(33)x=6.1(34)x=8.8(35)x=7.5(36)x=7.7(37)x=79(38)x=30(39)x=31(40)x=64(41)x=98(42)x=25(43)x=46(44)x=61(45)x=99(46)x=3(47)x=11(48)x=4(49)x=14(50)x=37(51)x=10(52)x=18(53)x=18(54)x=58(55)x=5.3(56)x=5(57)x=8.4(58)x=5.6(59)x=7.3(60)x=3.1(61)x=3.7(62)x=3.6(63)x=4(64)x=4.1(65)x=0.2(66)x=3.9(67)x=0.2(68)x=6.4(69)x=1.9(70)x=3.7(71)x=4.6(72)x=3.7(73)x=31(74)x=10(75)x=6(76)x=10(77)x=6(78)x=23(79)x=2(80)x=53(81)x=43(82)x=72(83)x=32(84)x=2(85)x=16(86)x=21(87)x=3(88)x=23(89)x=5(90)x=36(91)x=0.7(92)x=6.6(93)x=0.2(94)x=0.6(95)x=0.9(96)x=6.6(97)x=4.1(98)x=0.4(99)x=0.3(100)x=3(101)x=34(102)x=8(103)x=46(104)x=28(105)x=2(106)x=9(107)x=16(108)x=7(109)x=2(110)x=20(111)x=61(112)x=11(113)x=2(114)x=8(115)x=18(116)x=11(117)x=12(118)x=42(119)x=165(120)x=94(121)x=192(122)x=180(123)x=117(124)x=68(125)x=99(126)x=78(127)x=7(128)x=18.4(129)x=3.6(130)x=1.8(131)x=16.8(132)x=9.6(133)x=5(134)x=12.8(135)x=9(136)x=2(137)x=2(138)x=2(139)x=2(140)x=70(141)x=28(142)x=23(143)x=61(144)x=24(145)x=12(146)x=17(147)x=42(148)x=94(149)x=6(150)x=7(151)x=3(152)x=10(153)x=30(154)x=1.1(155)x=0.2(156)x=1.3(157)x=0.3(158)x=0.5(159)x=0.6(160)x=0.6(161)x=0.4(162)x=0.3(163)x=12(164)x=2(165)x=2(166)x=4(167)x=59(168)x=4(169)x=43(170)x=32(171)x=4(172)x=0.2(173)x=3.8(174)x=1.3(175)x=0.7(176)x=2.5(177)x=0.4(178)x=3.4(179)x=0.6(180)x=0.6(181)x=7(182)x=50(183)x=6(184)x=8(185)x=2(186)x=20(187)x=10(188)x=8(189)x=21(190)x=31(191)x=19(192)x=57(193)x=20(194)x=9(195)x=40(196)x=2(197)x=2(198)x=2(199)x=2(200)x=38(201)x=2(202)x=9(203)x=5(204)x=24(205)x=4(206)x=2(207)x=33(208)x=4(209)x=9(210)x=19(211)x=2(212)x=2(213)x=2(214)x=6(215)x=66(216)x=19(217)x=0.8(218)x=0.3(219)x=2.4(220)x=0.6(221)x=0.4(222)x=0.4(223)x=3.7(224)x=3.2(225)x=2.8(226)x=76(227)x=8(228)x=22(229)x=2(230)x=2(231)x=66(232)x=16(233)x=6(234)x=4(235)x=0.3(236)x=1.3(237)x=1.6(238)x=3.6(239)x=0.3(240)x=0.4(241)x=0.4(242)x=0.3(243)x=0.2(244)x=10(245)x=21(246)x=9(247)x=91(248)x=11(249)x=6(250)x=42(251)x=44(252)x=36(253)x=2(254)x=24(255)x=4(256)x=12(257)x=95(258)x=20(259)x=18(260)x=15(261)x=18(262)x=1.2(263)x=0.3(264)x=3(265)x=0.6(266)x=0.7(267)x=1.5(268)x=2.4(269)x=7.2(270)x=4.2(271)x=20(272)x=8(273)x=20(274)x=58(275)x=13(276)x=11(277)x=8(278)x=37(279)x=14(280)x=4(281)x=9(282)x=3(283)x=9(284)x=15(285)x=24(286)x=17(287)x=11(288)x=6(289)x=3(290)x=18(291)x=33(292)x=8(293)x=10(294)x=2(295)x=3(296)x=9(297)x=30(298)x=8(299)x=11(300)x=13(301)x=12(302)x=4(303)x=4(304)x=6(305)x=11(306)x=11(307)x=10(308)x=19(309)x=2(310)x=22(311)x=13(312)x=5(313)x=11(314)x=2(315)x=21(316)x=19(317)x=13(318)x=9(319)x=33(320)x=4(321)x=14(322)x=15(323)x=17(324)x=13(325)x=38(326)x=6(327)x=10(328)x=4(329)x=7(330)x=13(331)x=8(332)x=6(333)x=17(334)x=22(335)x=14(336)x=8(337)x=9(338)x=18(339)x=4(340)x=12(341)x=6(342)x=16(343)x=16(344)x=13(345)x=14(346)x=20(347)x=11(348)x=21(349)x=13(350)x=14(351)x=5(352)x=1.5(353)x=1.6(354)x=4(355)x=1.8(356)x=1(357)x=2.2(358)x=0.3(359)x=0.8(360)x=0.2(361)x=13(362)x=6(363)x=47(364)x=7(365)x=7(366)x=11(367)x=9(368)x=12(369)x=11(370)x=1.5(371)x=0.5(372)x=0.4(373)x=0.4(374)x=0.3(375)x=2(376)x=0.4(377)x=0.4(378)x=0.4(379)x=5(380)x=14(381)x=10(382)x=4(383)x=8(384)x=69(385)x=2(386)x=18(387)x=9(388)x=1.7(389)x=1.3(390)x=0.4(391)x=1(392