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+59=77(2)x+92=131(3)x+9=27(4)x+42=127(5)x+5=95(6)x+49=146(7)x+56=94(8)x+29=82(9)x+65=88(10)x-5=67(11)x-28=33(12)x-35=45(13)x-37=35(14)x-15=22(15)x-16=44(16)x-41=48(17)x-42=38(18)x-29=20(19)x+4.1=6.8(20)x+9.8=15.3(21)x+4=13.2(22)x+8.7=12.7(23)x+9.9=16.9(24)x+3.1=9.4(25)x+1=9.6(26)x+9.5=15.2(27)x+1.6=4.8(28)x-5.6=2.7(29)x-2.8=6.1(30)x-2.6=5.6(31)x-2.3=6.6(32)x-3.6=3.5(33)x-0.2=5.8(34)x-4=4.9(35)x-2.4=7.3(36)x-3.5=2(37)69+x=76(38)49+x=130(39)62+x=65(40)16+x=77(41)4+x=23(42)6+x=100(43)4+x=101(44)28+x=90(45)41+x=111(46)21-x=13(47)93-x=64(48)53-x=17(49)44-x=33(50)89-x=71(51)66-x=63(52)71-x=12(53)78-x=67(54)84-x=14(55)7+x=12.6(56)4+x=13.2(57)0.7+x=6.8(58)9.9+x=12.7(59)3.3+x=8.6(60)2.9+x=8.7(61)6.1+x=9.1(62)3.7+x=6.5(63)5.1+x=10.1(64)9.5-x=1.4(65)6.5-x=1.3(66)4.3-x=2.3(67)5.3-x=1.2(68)5.8-x=1.8(69)8.9-x=4.9(70)9.4-x=5.2(71)9.8-x=2.8(72)5.6-x=1.8(73)2x=198(74)5x=30(75)7x=14(76)2x=42(77)22x=44(78)8x=184(79)3x=87(80)35x=70(81)7x=112(82)0.3x=6.3(83)0.4x=8(84)0.3x=8.7(85)0.6x=1.8(86)0.6x=16.8(87)2.1x=4.2(88)4.4x=17.6(89)1.3x=14.3(90)7.8x=15.6(91)2x=8(92)5x=14.5(93)4x=2.8(94)5x=16.5(95)7x=19.6(96)30x=9(97)3x=12(98)12x=3.6(99)6x=10.2(100)91÷x=13(101)102÷x=6(102)63÷x=21(103)80÷x=2(104)189÷x=9(105)180÷x=3(106)156÷x=6(107)120÷x=10(108)48÷x=24(109)15.6÷x=2.6(110)19.6÷x=2.8(111)7.2÷x=0.8(112)16.2÷x=2.7(113)4.2÷x=0.2(114)15÷x=2.5(115)2.4÷x=0.2(116)19.5÷x=0.5(117)2.8÷x=0.2(118)x÷6=22(119)x÷2=41(120)x÷23=5(121)x÷3=2(122)x÷6=14(123)x÷2=26(124)x÷81=2(125)x÷9=6(126)x÷30=2(127)x÷4=3.3(128)x÷6=0.2(129)x÷22=0.5(130)x÷47=0.4(131)x÷16=0.3(132)x÷34=0.3(133)x÷2=1.8(134)x÷4=0.2(135)x÷35=0.3(136)4x+38=138(137)12x+10=130(138)5x+52=152(139)21x+46=88(140)57x+23=137(141)10x+39=169(142)12x+27=159(143)49x+39=235(144)13x+15=67(145)3x-50=43(146)37x-37=111(147)7x-25=150(148)19x-52=81(149)30x-27=93(150)98x-52=144(151)54x-37=71(152)23x-21=71(153)8x-14=138(154)36x+3=17.4(155)12x+4.4=15.2(156)41x+4.9=21.3(157)14x+4.1=13.9(158)2x+3.9=21.7(159)6x+4.5=18.3(160)8x+2.6=9.8(161)3x+4.2=14.4(162)51x+1.8=12(163)0.4x+4.8=10(164)0.7x+4.9=24.5(165)0.3x+2.9=5(166)0.4x+1.1=3.9(167)1x+1.9=11.9(168)0.4x+4.9=24.1(169)0.3x+3.2=8.3(170)0.4x+4.2=12.2(171)0.2x+5.6=9.2(172)16x-5.9=3.7(173)8x-1.7=9.5(174)2x-5.9=13.9(175)3x-2.4=13.2(176)26x-3.3=7.1(177)3x-3.9=10.8(178)15x-4.3=10.7(179)7x-1=17.9(180)14x-3.5=2.1(181)4.1x-3.3=9(182)1.8x-3.8=14.2(183)0.5x-1.4=4.6(184)9.8x-2.6=17(185)0.7x-5.7=13.2(186)3.2x-1.2=5.2(187)4.4x-2.8=10.4(188)1.7x-4.7=10.6(189)0.2x-4.5=13.9(190)120+10x=250(191)175+17x=328(192)44+6x=170(193)77+23x=261(194)89+31x=213(195)129+6x=303(196)37+2x=63(197)140+13x=205(198)88+84x=256(199)184-6x=136(200)184-34x=48(201)168-20x=48(202)78-5x=68(203)125-10x=95(204)169-6x=145(205)75-7x=33(206)63-5x=38(207)163-19x=30(208)16.9+7x=30.9(209)13.2+2.4x=27.6(210)8.7+0.3x=28.2(211)16.9+1.5x=30.4(212)8.2+0.8x=20.2(213)7.9+1.8x=24.1(214)19.8+0.5x=29.8(215)19.9+2.1x=32.5(216)13.3+0.2x=18.9(217)10.5+3x=29.4(218)15.8+20x=21.8(219)1.4+6x=2.6(220)9.7+70x=23.7(221)3.3+7x=20.8(222)4.1+66x=17.3(223)7.4+36x=25.4(224)14.2+3x=31.6(225)12.6+62x=25(226)16.4-0.4x=5.6(227)16.1-0.9x=2.6(228)17.2-3.2x=10.8(229)14.7-0.7x=11.9(230)19.8-0.3x=12.3(231)13.9-1.9x=4.4(232)13.4-0.9x=8(233)18.1-3.5x=4.1(234)19.6-0.5x=1.1(235)12.9-13x=10.3(236)8.7-2x=5.1(237)12.1-5x=2.1(238)15.1-3x=7(239)11.2-3x=3.7(240)12.4-8x=6(241)7.9-3x=5.2(242)17.1-7x=5.2(243)12.3-4x=9.9(244)32x÷48=4(245)26x÷2=39(246)16x÷8=8(247)18x÷27=6(248)58x÷6=29(249)6x÷27=4(250)81x÷6=27(251)18x÷36=4(252)9x÷2=45(253)0.8x÷16=1(254)0.4x÷11=0.8(255)5.6x÷84=0.2(256)0.8x÷36=0.2(257)0.6x÷12=0.5(258)0.2x÷26=0.7(259)0.2x÷11=1.2(260)5.2x÷12=1.3(261)0.6x÷54=0.2(262)10x÷14=0.5(263)22x÷33=0.2(264)18x÷10=0.9(265)2x÷14=0.7(266)6x÷30=0.4(267)6x÷34=0.3(268)10x÷24=0.5(269)20x÷50=0.4(270)21x÷7=1.5(271)3x+4x=231(272)4x+2x=144(273)4x+3x=252(274)3x+17x=160(275)5x+18x=46(276)17x+14x=155(277)17x+2x=133(278)10x+12x=308(279)6x+2x=192(280)9x-5x=12(281)8x-3x=65(282)15x-4x=77(283)12x-9x=21(284)18x-5x=78(285)12x-4x=40(286)17x-3x=112(287)11x-7x=24(288)7x-3x=52(289)7.9x+7x=178.8(290)5.7x+8.1x=124.2(291)2x+7x=90(292)0.6x+0.7x=61.1(293)3.7x+3.8x=97.5(294)7x+1.2x=24.6(295)3.2x+3.7x=138(296)1.7x+3x=56.4(297)2.5x+0.2x=10.8(298)3.6x-2.4x=13.2(299)7.1x-2.3x=14.4(300)4.6x-1.5x=49.6(301)7.7x-6.5x=9.6(302)7.6x-6.9x=3.5(303)8.7x-7.3x=5.6(304)3.4x-2.6x=19.2(305)7.5x-1.9x=22.4(306)3.5x-1.9x=22.4(307)6x+13x+15=72(308)12x+11x+21=90(309)5x+11x+10=154(310)16x+2x+46=226(311)5x+6x+48=312(312)3x+6x+16=286(313)10x+2x+49=97(314)8x+16x+12=252(315)2x+13x+31=106(316)19x+6x-34=91(317)17x+12x-24=295(318)13x+11x-19=101(319)5x+7x-7=317(320)5x+18x-47=137(321)18x+8x-18=138(322)17x+9x-6=72(323)16x+15x-26=253(324)14x+5x-23=186(325)7x-4x+30=93(326)8x-6x+14=56(327)12x-3x+31=76(328)6x-2x+8=52(329)8x-6x+19=67(330)19x-14x+5=45(331)12x-2x+28=58(332)12x-2x+17=107(333)17x-10x+42=98(334)8x-5x-11=28(335)14x-6x-34=30(336)5x-2x-10=23(337)10x-2x-31=65(338)16x-10x-12=36(339)9x-3x-24=66(340)16x-5x-10=56(341)4x-2x-4=64(342)9x-3x-24=60(343)2.6x+5.7x+1=117.2(344)1.9x+7.5x+1.7=76.9(345)2.2x+4.1x+1.5=39.3(346)0.4x+0.8x+2.2=4.6(347)5.2x+2.6x+3.1=42.1(348)1.4x+1.1x+2.1=94.6(349)5.1x+5.9x+0.8=99.8(350)4.4x+7.2x+3.8=119.8(351)3.7x+4.4x+3.8=20(352)2x+60x+2.6=27.4(353)5x+31x+1.6=37.6(354)83x+65x+4.4=108(355)2x+8x+3.8=61.8(356)80x+73x+1.6=154.6(357)86x+16x+3.5=85.1(358)23x+25x+3.7=104.5(359)54x+71x+3.4=153.4(360)71x+20x+4.2=131.6(361)5.1x+9.4x-3=113(362)4.3x+8.9x-2.8=36.8(363)9.6x+8.1x-0.8=52.3(364)2.6x+0.4x-2.2=102.8(365)3.6x+3.1x-4.8=42.1(366)0.5x+6.6x-3.6=60.3(367)5.1x+1.1x-4.1=95.1(368)1.9x+2.1x-2.3=21.7(369)6.8x+0.9x-4.6=18.5(370)3x+21x-1.7=41.5(371)9x+14x-4.6=105.8(372)77x+21x-3.9=113.7(373)70x+56x-3.6=147.6(374)78x+42x-0.8=23.2(375)98x+93x-0.4=190.6(376)54x+25x-4.2=106.4(377)27x+80x-4.2=38.6(378)47x+62x-0.6=130.2(379)1.8x-0.9x+1.3=36.4(380)8.1x-0.7x+3=69.6(381)2.2x-1.8x+3.1=16.7(382)3.7x-1.8x+3.3=20.4(383)7.6x-2x+3.6=65.2(384)8.8x-8.2x+4.6=9.4(385)8.6x-1x+2.8=86.4(386)5.2x-2x+0.2=22.6(387)3x-2.2x+2.7=11.5(388)11x-3x+4.9=6.5(389)18x-11x+2.7=16(390)39x-10x+2.7=52(391)85x-81x+2.8=6(392)18x-16x+2.5=8.9(393)69x-23x+3.8=45.2(394)78x-37x+1.1=42.1(395)56x-37x+3.2=20.3(396)63x-48x+1=17.5(397)8.9x-5.8x-2.3=31.8(398)1.1x-0.4x-1.2=35.2(399)1.2x-0.2x-4=20(400)2x-0.2x-4.6=83.6(401)3.4x-2.8x-0.6=6.6(402)8.3x-4.6x-2.6=41.8(403)2.8x-0.3x-0.7=41.8(404)5.1x-4.4x-0.6=9.2(405)2.5x-0.5x-0.9=43.1(406)81x-3x-1.7=76.3(407)61x-55x-4.3=3.5(408)43x-5x-4.2=22.4(409)63x-9x-3.9=23.1(410)72x-48x-2.8=23.6(411)24x-16x-3.5=2.1(412)93x-41x-1.2=9.2(413)12x-3x-4.6=62(414)60x-25x-1.4=47.6(415)4x+3×40=280(416)3x+77×2=160(417)4x+20×10=336(418)6x+16×12=270(419)2x+2×76=258(420)20x+4×16=224(421)13x+5×14=252(422)2x+16×11=206(423)16x+16×8=240(424)6x-12×2=42(425)8x-2×78=28(426)2x-2×46=20(427)2x-4×33=38(428)20x-77×2=46(429)19x-2×62=28(430)4x-18×4=20(431)5x-11×5=65(432)11x-2×18=41(433)1.3x+0.7×6=8.1(434)0.3x+0.2×27=9(435)2.4x+1.4×10=23.6(436)0.2x+0.3×29=18.3(437)1.9x+1.7×4=22(438)0.4x+0.4×19=14.8(439)0.4x+0.3×45=25.5(440)0.3x+1.1×8=9.4(441)1x+1×4=17(442)30x+6×2.3=25.8(443)24x+22×0.4=16(444)8x+17×0.4=23.6(445)15x+13×0.4=12.7(446)18x+25×0.7=28.3(447)17x+4×2.6=24(448)29x+6×2.4=26(449)22x+3×3=22.2(450)3x+29×0.2=11.5(451)3.8x-3.1×2=9(452)1.1x-0.2×15=12.4(453)1.1x-1.9×2=13.8(454)1.6x-0.4×7=2(455)0.6x-0.8×13=9.4(456)2.1x-0.3×14=6.3(457)1.6x-1.6×4=8(458)1.5x-2×3=12(459)4.1x-1.4×5=1.2(460)19x-31×0.4=2.8(461)15x-7×0.4=9.2(462)10x-3×2.6=7.2(463)20x-5×0.6=15(464)10x-2×2.5=15(465)49x-15×0.9=6.1(466)18x-20×0.2=8.6(467)4x-6×1.2=1.6(468)29x-32×0.3=2(469)4(x+15)=164(470)2(2x+44)=192(471)2(2x+20)=180(472)5(2x+3)=135(473)2(17x+6)=148(474)3(2x+19)=69(475)3(3x+8)=114(476)2(3x+25)=98(477)8(2x+5)=136(478)6(4x-27)=102(479)2(5x-27)=76(480)2(14x-36)=124(481)2(3x-45)=168(482)4(6x-16)=128(483)10(2x-32)=100(484)12(x-9)=132(485)8(9x-49)=112(486)11(x-2)=154(487)3(0.3x+0.8)=15.9(488)2(1.1x+1.6)=42.8(489)2(0.2x+7.6)=24(490)13(0.2x+0.7)=19.5(491)3(0.5x+5.2)=23.1(492)2(0.2x+5.5)=26.2(493)2(6.5x+7.5)=41(494)3(1.1x+7)=37.5(495)3(1.8x+2.1)=38.7(496)4(0.8x-3.1)=22.8(497)2(7x-1.2)=39.6(498)5(9.7x-9.5)=49.5(499)8(3.2x-4.7)=39.2(500)9(2.8x-1.3)=38.7(501)8(2.7x-2.8)=42.4(502)12(0.5x-6.6)=40.8(503)2(4.3x-8.2)=18(504)16(0.2x-2.6)=44.8(505)(9x+15)÷12=8(506)(14x+14)÷2=119(507)(8x+19)÷47=5(508)(6x+12)÷6=21(509)(8x+48)÷2=132(510)(4x+48)÷5=24(511)(6x+2)÷2=46(512)(4x+16)÷2=36(513)(12x+15)÷3=81(514)(4x-44)÷2=8(515)(5x-3)÷16=7(516)(14x-47)÷13=19(517)(17x-35)÷27=5(518)(4x-7)÷13=5(519)(6x-18)÷6=9(520)(12x-14)÷10=1(521)(8x-37)÷17=3(522)(8x-46)÷6=23(523)(2.6x+2)÷2=12.7(524)(5.5x+1.7)÷23=3.9(525)(3.8x+8.4)÷2=28.9(526)(4.5x+6)÷3=26(527)(8.3x+8.6)÷25=3(528)(4.5x+5.3)÷28=2.6(529)(1.7x+3.7)÷24=1.5(530)(2.9x+4)÷39=0.4(531)(0.4x+3)÷9=1(532)(9.8x-5.7)÷9=5.9(533)(3.1x-7.8)÷9=4.3(534)(4.2x-8.6)÷10=4.6(535)(3.5x-8.8)÷26=0.2(536)(1.7x-6.2)÷6=3.5(537)(2.2x-2.8)÷2=7.4(538)(8x-4.8)÷14=4.8(539)(4.2x-9)÷6=8.3(540)(8.2x-6.9)÷9=4.7参考答案(1)x=18(2)x=39(3)x=18(4)x=85(5)x=90(6)x=97(7)x=38(8)x=53(9)x=23(10)x=72(11)x=61(12)x=80(13)x=72(14)x=37(15)x=60(16)x=89(17)x=80(18)x=49(19)x=2.7(20)x=5.5(21)x=9.2(22)x=4(23)x=7(24)x=6.3(25)x=8.6(26)x=5.7(27)x=3.2(28)x=8.3(29)x=8.9(30)x=8.2(31)x=8.9(32)x=7.1(33)x=6(34)x=8.9(35)x=9.7(36)x=5.5(37)x=7(38)x=81(39)x=3(40)x=61(41)x=19(42)x=94(43)x=97(44)x=62(45)x=70(46)x=8(47)x=29(48)x=36(49)x=11(50)x=18(51)x=3(52)x=59(53)x=11(54)x=70(55)x=5.6(56)x=9.2(57)x=6.1(58)x=2.8(59)x=5.3(60)x=5.8(61)x=3(62)x=2.8(63)x=5(64)x=8.1(65)x=5.2(66)x=2(67)x=4.1(68)x=4(69)x=4(70)x=4.2(71)x=7(72)x=3.8(73)x=99(74)x=6(75)x=2(76)x=21(77)x=2(78)x=23(79)x=29(80)x=2(81)x=16(82)x=21(83)x=20(84)x=29(85)x=3(86)x=28(87)x=2(88)x=4(89)x=11(90)x=2(91)x=4(92)x=2.9(93)x=0.7(94)x=3.3(95)x=2.8(96)x=0.3(97)x=4(98)x=0.3(99)x=1.7(100)x=7(101)x=17(102)x=3(103)x=40(104)x=21(105)x=60(106)x=26(107)x=12(108)x=2(109)x=6(110)x=7(111)x=9(112)x=6(113)x=21(114)x=6(115)x=12(116)x=39(117)x=14(118)x=132(119)x=82(120)x=115(121)x=6(122)x=84(123)x=52(124)x=162(125)x=54(126)x=60(127)x=13.2(128)x=1.2(129)x=11(130)x=18.8(131)x=4.8(132)x=10.2(133)x=3.6(134)x=0.8(135)x=10.5(136)x=25(137)x=10(138)x=20(139)x=2(140)x=2(141)x=13(142)x=11(143)x=4(144)x=4(145)x=31(146)x=4(147)x=25(148)x=7(149)x=4(150)x=2(151)x=2(152)x=4(153)x=19(154)x=0.4(155)x=0.9(156)x=0.4(157)x=0.7(158)x=8.9(159)x=2.3(160)x=0.9(161)x=3.4(162)x=0.2(163)x=13(164)x=28(165)x=7(166)x=7(167)x=10(168)x=48(169)x=17(170)x=20(171)x=18(172)x=0.6(173)x=1.4(174)x=9.9(175)x=5.2(176)x=0.4(177)x=4.9(178)x=1(179)x=2.7(180)x=0.4(181)x=3(182)x=10(183)x=12(184)x=2(185)x=27(186)x=2(187)x=3(188)x=9(189)x=92(190)x=13(191)x=9(192)x=21(193)x=8(194)x=4(195)x=29(196)x=13(197)x=5(198)x=2(199)x=8(200)x=4(201)x=6(202)x=2(203)x=3(204)x=4(205)x=6(206)x=5(207)x=7(208)x=2(209)x=6(210)x=65(211)x=9(212)x=15(213)x=9(214)x=20(215)x=6(216)x=28(217)x=6.3(218)x=0.3(219)x=0.2(220)x=0.2(221)x=2.5(222)x=0.2(223)x=0.5(224)x=5.8(225)x=0.2(226)x=27(227)x=15(228)x=2(229)x=4(230)x=25(231)x=5(232)x=6(233)x=4(234)x=37(235)x=0.2(236)x=1.8(237)x=2(238)x=2.7(239)x=2.5(240)x=0.8(241)x=0.9(242)x=1.7(243)x=0.6(244)x=6(245)x=3(246)x=4(247)x=9(248)x=3(249)x=18(250)x=2(251)x=8(252)x=10(253)x=20(254)x=22(255)x=3(256)x=9(257)x=10(258)x=91(259)x=66(260)x=3(261)x=18(262)x=0.7(263)x=0.3(264)x=0.5(265)x=4.9(266)x=2(267)x=1.7(268)x=1.2(269)x=1(270)x=0.5(271)x=33(272)x=24(273)x=36(274)x=8(275)x=2(276)x=5(277)x=7(278)x=14(279)x=24(280)x=3(281)x=13(282)x=7(283)x=7(284)x=6(285)x=5(286)x=8(287)x=6(288)x=13(289)x=12(290)x=9(291)x=10(292)x=47(293)x=13(294)x=3(295)x=20(296)x=12(297)x=4(298)x=11(299)x=3(300)x=16(301)x=8(302)x=5(303)x=4(304)x=24(305)x=4(306)x=14(307)x=3(308)x=3(309)x=9(310)x=10(311)x=24(312)x=30(313)x=4(314)x=10(315)x=5(316)x=5(317)x=11(318)x=5(319)x=27(320)x=8(321)x=6(322)x=3(323)x=9(324)x=11(325)x=21(326)x=21(327)x=5(328)x=11(329)x=24(330)x=8(331)x=3(332)x=9(333)x=8(334)x=13(335)x=8(336)x=11(337)x=12(338)x=8(339)x=15(340)x=6(341)x=34(342)x=14(343)x=14(344)x=8(345)x=6(346)x=2(347)x=5(348)x=37(349)x=9(350)x=10(351)x=2(352)x=0.4(353)x=1(354)x=0.7(355)x=5.8(356)x=1(357)x=0.8(358)x=2.1(359)x=1.2(360)x=1.4(361)x=8(362)x=3(363)x=3(364)x=35(365)x=7(366)x=9(367)x=16(368)x=6(369)x=3(370)x=1.8(371)x=4.8(372)x=1.2(373)x=1.2(374)x=0.2(375)x=1(376)x=1.4(377)x=0.4(378)x=1.2(379)x=39(380)x=9(381)x=34(382)x=9(383)x=11(384)x=8(385)x=11(386)x=7(387)x=11(388)x=0.2(389)x=1.9(390)x=1.7(391)x=0.8(392)x=3.2(393)x=