五年級(jí)數(shù)學(xué)(方程)習(xí)題及答案(1)x+22=81(2)x+28=101(3)x+34=110(4)x+63=97(5)x+2=36(6)x+90=185(7)x+42=112(8)x+99=111(9)x+90=93(10)x-2=21(11)x-9=36(12)x-71=26(13)x-20=47(14)x-19=64(15)x-65=17(16)x-13=42(17)x-83=11(18)x-16=20(19)x+5.5=15.4(20)x+6.1=15.4(21)x+9.5=11.6(22)x+5.2=10.8(23)x+8=9.1(24)x+2.2=2.9(25)x+8.6=16.9(26)x+9.7=11.9(27)x+9.1=11.5(28)x-6.7=1.8(29)x-4.7=4(30)x-1.5=5.7(31)x-0.4=2.8(32)x-3.9=3.3(33)x-1.8=4.2(34)x-0.7=4.2(35)x-0.7=8.5(36)x-5.2=2.2(37)24+x=64(38)53+x=131(39)88+x=180(40)73+x=160(41)76+x=130(42)72+x=150(43)35+x=63(44)80+x=137(45)8+x=103(46)96-x=26(47)54-x=48(48)40-x=11(49)47-x=11(50)88-x=52(51)56-x=48(52)93-x=54(53)36-x=29(54)74-x=41(55)0.9+x=5.8(56)2+x=9(57)9.4+x=12.8(58)1.1+x=7.7(59)6.5+x=10(60)1.7+x=11.5(61)3.7+x=10.7(62)9.9+x=13.3(63)2.9+x=3.8(64)5.8-x=2.8(65)4.9-x=2.2(66)4.3-x=3.2(67)1.5-x=1(68)7.6-x=7.3(69)4.7-x=1.5(70)7.5-x=2.1(71)8.7-x=5.4(72)2.9-x=2.7(73)3x=33(74)53x=106(75)34x=102(76)16x=176(77)17x=170(78)42x=168(79)17x=34(80)15x=45(81)42x=84(82)3.3x=9.9(83)0.4x=16(84)0.4x=5.6(85)0.8x=20(86)0.5x=17.5(87)2.2x=6.6(88)1.6x=9.6(89)0.4x=10.4(90)2.8x=14(91)2x=6(92)13x=13(93)98x=19.6(94)4x=3.2(95)21x=18.9(96)14x=4.2(97)49x=19.6(98)5x=13.5(99)5x=3(100)120÷x=5(101)22÷x=11(102)100÷x=2(103)168÷x=24(104)46÷x=23(105)190÷x=5(106)45÷x=3(107)140÷x=14(108)64÷x=2(109)1.4÷x=0.2(110)11÷x=1(111)13.2÷x=4.4(112)10.8÷x=0.4(113)9.5÷x=1.9(114)9.6÷x=3.2(115)12.9÷x=4.3(116)9÷x=3(117)18.8÷x=0.4(118)x÷6=27(119)x÷31=4(120)x÷14=8(121)x÷57=2(122)x÷7=24(123)x÷23=5(124)x÷26=3(125)x÷65=3(126)x÷89=2(127)x÷6=1.8(128)x÷95=0.2(129)x÷30=0.4(130)x÷7=1.1(131)x÷10=1.2(132)x÷96=0.2(133)x÷3=0.2(134)x÷43=0.2(135)x÷74=0.2(136)9x+48=156(137)6x+35=65(138)7x+51=149(139)45x+48=138(140)14x+39=235(141)11x+57=244(142)28x+20=76(143)50x+39=189(144)32x+13=141(145)43x-45=84(146)16x-51=29(147)6x-53=37(148)66x-36=162(149)8x-40=64(150)2x-23=165(151)4x-50=70(152)23x-52=17(153)3x-13=110(154)7x+4.8=20.9(155)20x+2.1=18.1(156)26x+5.2=13(157)12x+3.5=5.9(158)15x+4.1=20.6(159)24x+5.8=20.2(160)6x+5.4=13.2(161)3x+3.3=8.7(162)5x+3.1=5.6(163)2.3x+5.2=21.3(164)1x+5.9=16.9(165)0.2x+1.6=19(166)6.2x+1.5=20.1(167)0.6x+5.9=19.1(168)3.1x+3.6=12.9(169)3.3x+5.1=18.3(170)0.2x+5.2=8.2(171)0.4x+2.4=3.6(172)2x-1.4=2.6(173)36x-4.4=13.6(174)84x-1=15.8(175)5x-5.4=5.6(176)39x-5.6=10(177)16x-3.5=10.9(178)69x-1=12.8(179)12x-1.7=5.5(180)17x-5.1=6.8(181)7.8x-1.3=14.3(182)0.2x-5.3=14.1(183)9.2x-3=15.4(184)0.4x-5.1=10.5(185)0.6x-4.6=13.4(186)0.2x-3.1=12.3(187)1.6x-5.6=12(188)1.8x-3.6=14.4(189)0.5x-5.5=6.5(190)159+7x=201(191)154+17x=205(192)167+26x=323(193)58+95x=248(194)29+29x=116(195)106+5x=121(196)153+19x=324(197)27+24x=99(198)172+35x=347(199)59-4x=47(200)177-30x=117(201)55-9x=10(202)131-55x=21(203)47-6x=11(204)164-6x=86(205)174-61x=52(206)102-4x=90(207)172-6x=118(208)2.5+4.4x=11.3(209)15.5+0.3x=24.5(210)16.3+2.9x=27.9(211)19.4+0.8x=32.2(212)10.3+2.6x=23.3(213)16.1+0.2x=30.7(214)7.5+1x=26.5(215)5.9+5.1x=16.1(216)6.3+2.5x=16.3(217)14+23x=32.4(218)5.7+11x=10.1(219)17.8+7x=34.6(220)9.8+30x=24.8(221)14.2+4x=32.2(222)3.9+99x=23.7(223)14.3+98x=33.9(224)2.2+2x=12(225)7.1+2x=26.3(226)14.6-0.3x=13.4(227)18.1-1.3x=7.7(228)17.8-5.9x=6(229)19.8-4.5x=1.8(230)18.6-1.1x=1(231)12.6-0.4x=1.4(232)17.3-1.7x=12.2(233)13.4-0.4x=7.8(234)14.4-3.2x=4.8(235)15.3-2x=6.3(236)11-4x=8.2(237)18-12x=10.8(238)18.9-29x=1.5(239)6.8-7x=3.3(240)11.6-3x=6.5(241)13-2x=5(242)9.8-3x=1.7(243)17-37x=9.6(244)26x÷4=39(245)18x÷45=2(246)4x÷28=6(247)75x÷6=25(248)6x÷12=8(249)20x÷25=4(250)2x÷3=28(251)4x÷20=6(252)10x÷34=5(253)0.6x÷27=0.2(254)0.3x÷33=0.6(255)9x÷45=0.4(256)2.8x÷8=2.1(257)4.2x÷7=1.8(258)0.4x÷22=0.6(259)0.6x÷2=3.9(260)2.1x÷14=1.2(261)2.2x÷44=0.3(262)4x÷6=2(263)5x÷4=1(264)9x÷24=0.3(265)31x÷93=0.2(266)12x÷64=0.3(267)24x÷2=3.6(268)10x÷5=0.6(269)2x÷22=0.3(270)2x÷49=0.4(271)6x+8x=154(272)10x+8x=126(273)11x+9x=260(274)18x+13x=124(275)14x+2x=192(276)7x+6x=286(277)17x+18x=140(278)4x+9x=65(279)18x+6x=240(280)7x-2x=130(281)5x-3x=68(282)14x-11x=39(283)16x-11x=15(284)13x-11x=24(285)18x-9x=90(286)16x-10x=54(287)9x-2x=119(288)4x-2x=72(289)1.2x+9.1x=20.6(290)5.2x+3.8x=126(291)3.5x+2.8x=113.4(292)5.5x+6.8x=123(293)3.6x+2x=11.2(294)1.3x+9.6x=76.3(295)2x+2.2x=138.6(296)0.6x+5.8x=102.4(297)3x+4.1x=92.3(298)3.6x-2.9x=7.7(299)6.8x-2.4x=39.6(300)3x-0.6x=12(301)7.8x-6.4x=14(302)1.2x-0.9x=9(303)1.6x-0.3x=72.8(304)8.1x-3.4x=51.7(305)9.7x-5.1x=27.6(306)8.6x-2x=66(307)14x+18x+12=268(308)15x+9x+2=122(309)17x+5x+35=167(310)9x+4x+25=116(311)14x+11x+33=358(312)5x+14x+21=97(313)6x+14x+5=225(314)15x+10x+2=152(315)17x+8x+45=95(316)18x+6x-35=205(317)8x+5x-8=304(318)15x+5x-27=233(319)6x+9x-22=53(320)5x+4x-44=28(321)7x+5x-17=163(322)2x+6x-38=74(323)14x+7x-49=14(324)19x+13x-28=196(325)5x-3x+30=68(326)10x-4x+33=147(327)16x-13x+31=43(328)4x-2x+42=118(329)17x-13x+24=60(330)7x-5x+33=53(331)19x-6x+46=150(332)6x-2x+18=146(333)12x-8x+2=18(334)10x-3x-2=61(335)12x-3x-8=55(336)18x-12x-38=28(337)13x-4x-32=103(338)5x-2x-10=47(339)7x-4x-18=21(340)12x-4x-18=54(341)13x-3x-30=60(342)16x-3x-17=61(343)7.9x+5.1x+1.5=144.5(344)4.3x+0.7x+3.1=18.1(345)2.1x+1x+3.2=117.9(346)0.8x+3.9x+1=29.2(347)1.5x+0.4x+1.2=113.3(348)3.4x+6.4x+1.1=79.5(349)6.4x+0.6x+4=32(350)9.8x+2.1x+2=25.8(351)2.5x+0.3x+4.6=55(352)24x+93x+2.7=37.8(353)45x+50x+4.2=23.2(354)16x+26x+3.7=58.3(355)28x+49x+2.8=102.9(356)35x+84x+1.2=84.5(357)7x+28x+0.9=63.9(358)20x+79x+3.9=93(359)29x+68x+2.4=109.1(360)13x+78x+3.1=103.2(361)1x+5.4x-4=98.4(362)2x+0.7x-1.7=41.5(363)0.7x+1.1x-4.4=51.4(364)2.9x+6.4x-4.1=23.8(365)7.7x+9.6x-4.6=116.5(366)4.6x+5.1x-2.5=162.4(367)0.5x+1.5x-2.7=121.3(368)3.1x+2.1x-1.3=118.3(369)0.6x+8.2x-3.6=31.6(370)29x+43x-2=163.6(371)30x+10x-3.2=88.8(372)66x+31x-2.5=16.9(373)49x+25x-3.8=11(374)37x+19x-4.1=79.9(375)68x+63x-4.6=139.5(376)53x+28x-2.6=21.7(377)13x+7x-4.9=69.1(378)30x+80x-4.9=17.1(379)1.7x-1.5x+3.2=14.4(380)6.2x-4.9x+2.9=8.1(381)8.6x-2x+2.9=62.3(382)3.4x-2.5x+3.5=11.6(383)6.1x-4.7x+3.1=18.5(384)6.8x-1.4x+4.4=42.2(385)6.6x-2.4x+3.6=28.8(386)0.8x-0.5x+0.8=9.2(387)1.3x-0.5x+4.8=10.4(388)65x-44x+2.9=15.5(389)14x-10x+1.5=19.9(390)59x-29x+1.6=37.6(391)65x-31x+4.6=55.6(392)53x-3x+2.5=22.5(393)19x-14x+1.9=10.9(394)47x-39x+4.7=18.3(395)87x-53x+0.3=13.9(396)98x-34x+4.4=17.2(397)6.1x-2.3x-0.9=18.1(398)5.2x-0.7x-3.4=46.1(399)9.8x-4.9x-4.9=24.5(400)8.1x-5.4x-2.8=24.2(401)5.1x-3.6x-3.8=15.7(402)4.5x-3.9x-1.4=10(403)0.8x-0.4x-2.1=29.9(404)8.7x-3.5x-1=25(405)3x-2.2x-3.9=1.7(406)22x-10x-4.2=6.6(407)59x-15x-0.5=61.1(408)35x-29x-1.8=5.4(409)52x-20x-0.7=31.3(410)17x-13x-3.2=8.8(411)58x-51x-0.6=10.6(412)95x-3x-0.4=18(413)45x-42x-1.2=3.9(414)60x-3x-3.3=59.4(415)8x+5×40=320(416)5x+35×2=225(417)24x+25×2=98(418)6x+30×5=318(419)16x+5×36=340(420)2x+4×28=228(421)12x+10×11=230(422)2x+25×4=106(423)4x+2×45=170(424)2x-12×5=48(425)13x-7×11=105(426)29x-2×44=86(427)3x-12×11=21(428)7x-22×6=22(429)8x-4×21=108(430)6x-5×16=82(431)12x-9×13=15(432)18x-2×38=68(433)0.3x+0.3×5=6.9(434)1.7x+2.1×9=29.1(435)0.5x+0.3×4=5.7(436)2.5x+0.8×14=28.7(437)0.4x+1.2×8=12(438)0.6x+1.3×7=10.3(439)2.4x+0.4×26=27.2(440)2.5x+1×8=20.5(441)2.7x+0.6×14=21.9(442)2x+3×1.3=11.3(443)7x+15×0.5=10.3(444)40x+9×0.8=15.2(445)7x+3×0.7=4.2(446)2x+5×3.4=26.2(447)11x+20×0.3=14.8(448)6x+8×1.6=27.8(449)17x+29×0.5=29.8(450)5x+3×0.5=15.5(451)3.7x-2.8×2=9.2(452)1.3x-0.2×44=1.6(453)1x-0.8×4=14.8(454)3.3x-1.4×6=1.5(455)0.7x-0.4×35=2.8(456)3.2x-0.2×17=15.8(457)4.5x-0.2×17=5.6(458)3.5x-0.7×15=3.5(459)0.5x-1.2×9=5.2(460)28x-45×0.3=6.1(461)6x-13×1.2=1.8(462)25x-30×0.2=11.5(463)15x-10×1.1=1(464)19x-2×3=1.6(465)7x-27×0.3=10.8(466)7x-6×0.7=8.4(467)32x-25×0.4=6(468)18x-2×3.2=2.6(469)2(4x+10)=172(470)2(2x+27)=62(471)2(2x+2)=120(472)2(3x+29)=178(473)4(x+14)=124(474)5(2x+19)=195(475)3(x+34)=150(476)3(2x+28)=180(477)6(3x+23)=174(478)3(17x-2)=96(479)3(2x-24)=96(480)14(4x-2)=140(481)3(3x-36)=135(482)4(4x-22)=168(483)2(6x-45)=54(484)3(2x-4)=192(485)8(2x-43)=152(486)7(2x-8)=154(487)6(1.4x+2.6)=40.8(488)11(0.2x+0.6)=22(489)2(0.7x+9.7)=34.8(490)4(0.5x+8.2)=36.8(491)4(x+3.6)=30.4(492)3(1.1x+8.6)=39(493)4(3.1x+1)=28.8(494)3(0.7x+8)=38.7(495)2(4.6x+4.8)=46.4(496)4(2.2x-7.9)=21.2(497)10(1.4x-6.8)=30(498)3(2.6x-1.7)=26.1(499)8(1.7x-4.3)=33.6(500)4(0.2x-6.8)=7.2(501)12(2x-1.4)=31.2(502)7(0.8x-1.5)=39.9(503)5(0.4x-3.9)=10.5(504)5(0.2x-0.2)=25(505)(16x+30)÷3=58(506)(5x+44)÷31=4(507)(12x+12)÷6=24(508)(x+23)÷47=1(509)(10x+26)÷4=29(510)(9x+14)÷10=23(511)(6x+36)÷3=42(512)(12x+30)÷45=2(513)(9x+5)÷14=19(514)(9x-30)÷17=12(515)(19x-12)÷8=8(516)(4x-41)÷9=7(517)(6x-48)÷20=3(518)(9x-12)÷41=3(519)(10x-42)÷2=49(520)(15x-18)÷37=6(521)(6x-26)÷23=2(522)(17x-20)÷2=41(523)(6.2x+7.6)÷3=10.8(524)(4.4x+2.9)÷5=17.3(525)(6.1x+7.9)÷27=2.1(526)(8.4x+1)÷2=46.7(527)(9.1x+5.2)÷13=1.8(528)(2x+6.8)÷23=1.6(529)(6.1x+1.1)÷31=2.2(530)(3.7x+8.1)÷7=11.2(531)(5x+3.9)÷9=7.1(532)(2.4x-3.3)÷19=2.1(533)(3.9x-9.9)÷22=1.5(534)(0.4x-0.9)÷3=2.1(535)(3.5x-5.1)÷23=1.3(536)(2x-7.1)÷3=10.3(537)(0.6x-4.6)÷4=0.8(538)(7.7x-1.4)÷4=18.9(539)(1.5x-7.5)÷3=1.5(540)(3x-1.5)÷5=9.9參考答案(1)x=59(2)x=73(3)x=76(4)x=34(5)x=34(6)x=95(7)x=70(8)x=12(9)x=3(10)x=23(11)x=45(12)x=97(13)x=67(14)x=83(15)x=82(16)x=55(17)x=94(18)x=36(19)x=9.9(20)x=9.3(21)x=2.1(22)x=5.6(23)x=1.1(24)x=0.7(25)x=8.3(26)x=2.2(27)x=2.4(28)x=8.5(29)x=8.7(30)x=7.2(31)x=3.2(32)x=7.2(33)x=6(34)x=4.9(35)x=9.2(36)x=7.4(37)x=40(38)x=78(39)x=92(40)x=87(41)x=54(42)x=78(43)x=28(44)x=57(45)x=95(46)x=70(47)x=6(48)x=29(49)x=36(50)x=36(51)x=8(52)x=39(53)x=7(54)x=33(55)x=4.9(56)x=7(57)x=3.4(58)x=6.6(59)x=3.5(60)x=9.8(61)x=7(62)x=3.4(63)x=0.9(64)x=3(65)x=2.7(66)x=1.1(67)x=0.5(68)x=0.3(69)x=3.2(70)x=5.4(71)x=3.3(72)x=0.2(73)x=11(74)x=2(75)x=3(76)x=11(77)x=10(78)x=4(79)x=2(80)x=3(81)x=2(82)x=3(83)x=40(84)x=14(85)x=25(86)x=35(87)x=3(88)x=6(89)x=26(90)x=5(91)x=3(92)x=1(93)x=0.2(94)x=0.8(95)x=0.9(96)x=0.3(97)x=0.4(98)x=2.7(99)x=0.6(100)x=24(101)x=2(102)x=50(103)x=7(104)x=2(105)x=38(106)x=15(107)x=10(108)x=32(109)x=7(110)x=11(111)x=3(112)x=27(113)x=5(114)x=3(115)x=3(116)x=3(117)x=47(118)x=162(119)x=124(120)x=112(121)x=114(122)x=168(123)x=115(124)x=78(125)x=195(126)x=178(127)x=10.8(128)x=19(129)x=12(130)x=7.7(131)x=12(132)x=19.2(133)x=0.6(134)x=8.6(135)x=14.8(136)x=12(137)x=5(138)x=14(139)x=2(140)x=14(141)x=17(142)x=2(143)x=3(144)x=4(145)x=3(146)x=5(147)x=15(148)x=3(149)x=13(150)x=94(151)x=30(152)x=3(153)x=41(154)x=2.3(155)x=0.8(156)x=0.3(157)x=0.2(158)x=1.1(159)x=0.6(160)x=1.3(161)x=1.8(162)x=0.5(163)x=7(164)x=11(165)x=87(166)x=3(167)x=22(168)x=3(169)x=4(170)x=15(171)x=3(172)x=2(173)x=0.5(174)x=0.2(175)x=2.2(176)x=0.4(177)x=0.9(178)x=0.2(179)x=0.6(180)x=0.7(181)x=2(182)x=97(183)x=2(184)x=39(185)x=30(186)x=77(187)x=11(188)x=10(189)x=24(190)x=6(191)x=3(192)x=6(193)x=2(194)x=3(195)x=3(196)x=9(197)x=3(198)x=5(199)x=3(200)x=2(201)x=5(202)x=2(203)x=6(204)x=13(205)x=2(206)x=3(207)x=9(208)x=2(209)x=30(210)x=4(211)x=16(212)x=5(213)x=73(214)x=19(215)x=2(216)x=4(217)x=0.8(218)x=0.4(219)x=2.4(220)x=0.5(221)x=4.5(222)x=0.2(223)x=0.2(224)x=4.9(225)x=9.6(226)x=4(227)x=8(228)x=2(229)x=4(230)x=16(231)x=28(232)x=3(233)x=14(234)x=3(235)x=4.5(236)x=0.7(237)x=0.6(238)x=0.6(239)x=0.5(240)x=1.7(241)x=4(242)x=2.7(243)x=0.2(244)x=6(245)x=5(246)x=42(247)x=2(248)x=16(249)x=5(250)x=42(251)x=30(252)x=17(253)x=9(254)x=66(255)x=2(256)x=6(257)x=3(258)x=33(259)x=13(260)x=8(261)x=6(262)x=3(263)x=0.8(264)x=0.8(265)x=0.6(266)x=1.6(267)x=0.3(268)x=0.3(269)x=3.3(270)x=9.8(271)x=11(272)x=7(273)x=13(274)x=4(275)x=12(276)x=22(277)x=4(278)x=5(279)x=10(280)x=26(281)x=34(282)x=13(283)x=3(284)x=12(285)x=10(286)x=9(287)x=17(288)x=36(289)x=2(290)x=14(291)x=18(292)x=10(293)x=2(294)x=7(295)x=33(296)x=16(297)x=13(298)x=11(299)x=9(300)x=5(301)x=10(302)x=30(303)x=56(304)x=11(305)x=6(306)x=10(307)x=8(308)x=5(309)x=6(310)x=7(311)x=13(312)x=4(313)x=11(314)x=6(315)x=2(316)x=10(317)x=24(318)x=13(319)x=5(320)x=8(321)x=15(322)x=14(323)x=3(324)x=7(325)x=19(326)x=19(327)x=4(328)x=38(329)x=9(330)x=10(331)x=8(332)x=32(333)x=4(334)x=9(335)x=7(336)x=11(337)x=15(338)x=19(339)x=13(340)x=9(341)x=9(342)x=6(343)x=11(344)x=3(345)x=37(346)x=6(347)x=59(348)x=8(349)x=4(350)x=2(351)x=18(352)x=0.3(353)x=0.2(354)x=1.3(355)x=1.3(356)x=0.7(357)x=1.8(358)x=0.9(359)x=1.1(360)x=1.1(361)x=16(362)x=16(363)x=31(364)x=3(365)x=7(366)x=17(367)x=62(368)x=23(369)x=4(370)x=2.3(371)x=2.3(372)x=0.2(373)x=0.2(374)x=1.5(375)x=1.1(376)x=0.3(377)x=3.7(378)x=0.2(379)x=56(380)x=4(381)x=9(382)x=9(383)x=11(384)x=7(385)x=6(386)x=28(387)x=7(388)x=0.6(389)x=4.6(390)x=1.2(391)x=1.5(392)x=0.