五年級(jí)數(shù)學(xué)(方程)習(xí)題及答案(1)x+89=149(2)x+85=99(3)x+3=10(4)x+5=23(5)x+63=143(6)x+16=34(7)x+38=52(8)x+9=78(9)x+93=170(10)x-6=65(11)x-12=11(12)x-42=46(13)x-27=60(14)x-10=68(15)x-44=49(16)x-11=37(17)x-2=45(18)x-22=39(19)x+4.2=10.3(20)x+8.8=14.3(21)x+6.2=7.9(22)x+2.3=7.7(23)x+7.5=15.9(24)x+8=14.4(25)x+1.5=6.7(26)x+9.3=18(27)x+0.6=7.8(28)x-5=3.9(29)x-1.6=2.9(30)x-2.1=4.6(31)x-0.7=3.8(32)x-4.6=4.9(33)x-1.7=7.3(34)x-1.9=6.4(35)x-0.7=9.2(36)x-4=2.5(37)64+x=98(38)67+x=120(39)6+x=49(40)68+x=155(41)81+x=85(42)71+x=106(43)63+x=162(44)26+x=119(45)63+x=128(46)79-x=51(47)69-x=35(48)78-x=38(49)48-x=29(50)97-x=23(51)98-x=77(52)26-x=11(53)29-x=19(54)81-x=69(55)1.5+x=2.1(56)1.9+x=5.3(57)4+x=6.7(58)4.6+x=8.8(59)2.5+x=8.4(60)1.4+x=2.6(61)7.5+x=15.7(62)5.1+x=12.6(63)7.7+x=15.6(64)9.1-x=4.2(65)9.2-x=5.4(66)9.6-x=3.7(67)9-x=3(68)9.9-x=4.3(69)9.6-x=2(70)3.5-x=2.9(71)7.6-x=1.2(72)6.2-x=5.3(73)5x=25(74)4x=44(75)3x=27(76)7x=63(77)20x=40(78)30x=180(79)35x=175(80)9x=171(81)16x=128(82)0.4x=15.2(83)4x=8(84)1.3x=5.2(85)0.7x=16.1(86)5x=20(87)0.2x=7(88)0.4x=16.4(89)1.4x=19.6(90)3.8x=19(91)34x=6.8(92)6x=6.6(93)7x=9.1(94)29x=17.4(95)8x=13.6(96)17x=15.3(97)4x=11.6(98)6x=3.6(99)19x=17.1(100)54÷x=2(101)56÷x=4(102)108÷x=18(103)72÷x=36(104)176÷x=8(105)150÷x=15(106)141÷x=3(107)90÷x=5(108)96÷x=2(109)4.8÷x=0.3(110)9.3÷x=0.3(111)9.6÷x=0.2(112)4.9÷x=0.7(113)13.2÷x=0.4(114)16.8÷x=0.7(115)13.5÷x=2.7(116)17.6÷x=0.2(117)5.6÷x=0.4(118)x÷4=18(119)x÷5=15(120)x÷7=4(121)x÷30=4(122)x÷26=5(123)x÷7=17(124)x÷3=9(125)x÷25=4(126)x÷2=16(127)x÷2=3.6(128)x÷29=0.5(129)x÷21=0.6(130)x÷8=1.7(131)x÷24=0.2(132)x÷22=0.9(133)x÷21=0.7(134)x÷7=1.6(135)x÷28=0.6(136)6x+20=212(137)2x+46=192(138)2x+13=41(139)2x+26=140(140)11x+17=94(141)58x+39=213(142)7x+55=153(143)5x+35=90(144)98x+32=228(145)88x-48=128(146)10x-57=133(147)2x-52=98(148)2x-22=176(149)21x-35=154(150)14x-32=150(151)9x-26=73(152)52x-55=49(153)46x-46=46(154)15x+4.4=14.9(155)13x+1.6=8.1(156)3x+5.6=22.4(157)64x+5.8=25(158)11x+5.4=19.7(159)2x+1.8=15(160)29x+3.5=9.3(161)16x+3.1=7.9(162)47x+5.1=19.2(163)0.2x+1.7=7.1(164)1.3x+3.7=6.3(165)0.3x+5.6=7.7(166)0.2x+5.7=10.7(167)0.4x+4.8=16.8(168)0.5x+4.7=24.2(169)0.5x+2=6(170)1.5x+1.2=14.7(171)0.5x+4.1=6.1(172)9x-4.8=7.8(173)59x-3=14.7(174)10x-4.4=2.6(175)2x-1.8=12.4(176)3x-4.7=7(177)64x-2=10.8(178)99x-4.6=15.2(179)58x-2.2=9.4(180)6x-3.9=1.5(181)3.6x-5=5.8(182)0.3x-5.1=8.7(183)1x-1.3=11.7(184)1x-4.1=5.9(185)1.7x-5.2=13.5(186)0.4x-4.4=4(187)1.8x-1=9.8(188)3.2x-2.3=16.9(189)0.9x-2.3=14.8(190)148+2x=338(191)89+25x=189(192)184+12x=220(193)29+11x=51(194)82+7x=278(195)56+33x=254(196)111+84x=279(197)25+18x=79(198)128+90x=308(199)165-4x=89(200)96-43x=10(201)172-12x=112(202)143-7x=80(203)194-8x=98(204)104-28x=48(205)137-3x=29(206)191-4x=11(207)52-6x=40(208)4.6+2.8x=24.2(209)13.8+0.2x=22.8(210)16.4+2.2x=31.8(211)5.7+2.2x=14.5(212)2.3+0.2x=10.1(213)3.4+0.9x=6.1(214)12.8+0.3x=32.6(215)7+3.7x=25.5(216)4.7+4x=20.7(217)10.7+6x=16.7(218)19.4+8x=33(219)18.9+5x=37.4(220)7.8+9x=23.1(221)6.7+42x=19.3(222)13.2+2x=32.6(223)5+21x=23.9(224)10.7+2x=25.3(225)17.8+4x=25.8(226)12.8-1x=6.8(227)14-0.6x=2(228)15.8-0.4x=7.4(229)7-2x=1(230)10-0.4x=3.6(231)6.2-2.6x=1(232)19.7-0.2x=12.9(233)16.4-4.3x=7.8(234)12.6-2x=4.6(235)16-20x=2(236)19.6-3x=18.7(237)14.3-50x=4.3(238)3.1-3x=2.2(239)19.2-6x=12(240)15.4-48x=5.8(241)18.4-2x=1.8(242)16-2x=14.6(243)10.6-2x=8(244)21x÷7=12(245)4x÷13=8(246)15x÷20=3(247)98x÷49=4(248)2x÷22=6(249)10x÷5=32(250)22x÷4=44(251)2x÷4=38(252)3x÷24=6(253)0.4x÷12=0.5(254)1.8x÷4=2.7(255)5.5x÷11=1.5(256)8.8x÷16=1.1(257)3.9x÷26=0.6(258)2.7x÷15=0.9(259)2x÷25=0.4(260)0.2x÷20=0.8(261)0.2x÷22=0.9(262)2x÷4=4.7(263)20x÷10=1(264)52x÷13=1.2(265)22x÷33=0.6(266)9x÷6=0.6(267)50x÷5=4(268)15x÷25=0.6(269)5x÷4=1.5(270)3x÷4=0.6(271)5x+3x=320(272)9x+8x=221(273)7x+8x=210(274)4x+5x=252(275)15x+6x=42(276)9x+2x=231(277)6x+11x=51(278)8x+7x=195(279)16x+18x=238(280)19x-9x=30(281)18x-12x=48(282)7x-3x=20(283)6x-4x=58(284)19x-10x=81(285)16x-3x=104(286)5x-2x=54(287)16x-13x=24(288)12x-2x=140(289)4.4x+2x=102.4(290)5.5x+5.1x=74.2(291)9.2x+9.3x=111(292)0.3x+9.2x=95(293)1x+4x=45(294)1.2x+9.8x=99(295)8x+0.5x=102(296)1x+3.2x=121.8(297)8.3x+6.2x=145(298)0.5x-0.2x=22.5(299)5.2x-3.6x=17.6(300)6.4x-4.5x=13.3(301)6.9x-3.8x=43.4(302)9.9x-3.7x=24.8(303)6.1x-4.1x=14(304)4.3x-1.9x=52.8(305)7.8x-2.5x=10.6(306)4x-2.7x=10.4(307)3x+9x+10=262(308)2x+11x+43=251(309)3x+2x+37=202(310)4x+2x+27=99(311)16x+17x+35=299(312)8x+5x+7=306(313)8x+6x+16=114(314)12x+3x+40=115(315)18x+4x+17=83(316)6x+5x-28=324(317)13x+6x-26=183(318)5x+19x-4=212(319)4x+5x-22=104(320)2x+9x-5=204(321)11x+14x-5=245(322)13x+9x-31=277(323)17x+16x-23=43(324)19x+13x-48=16(325)13x-11x+8=28(326)15x-11x+23=43(327)16x-4x+45=141(328)6x-3x+3=102(329)10x-5x+47=112(330)5x-2x+18=30(331)12x-3x+7=106(332)11x-6x+33=98(333)7x-5x+19=55(334)12x-3x-20=70(335)7x-4x-13=17(336)16x-2x-32=122(337)11x-6x-7=33(338)15x-6x-14=13(339)19x-14x-13=12(340)19x-3x-19=125(341)15x-2x-47=18(342)16x-2x-9=61(343)7.7x+4.1x+1.2=95.6(344)1.1x+0.9x+3.4=37.4(345)8.9x+1.3x+3=64.2(346)8.7x+4.3x+4.9=121.9(347)3.8x+1.6x+1.4=50(348)4.1x+1.1x+2.7=117.1(349)9.5x+4.4x+4.3=129.4(350)7.8x+1.2x+1.8=19.8(351)3.9x+2.3x+0.3=43.7(352)57x+25x+3.7=52.9(353)38x+7x+1.9=10.9(354)94x+44x+1.1=83.9(355)86x+73x+4.4=68(356)67x+52x+0.7=72.1(357)16x+29x+3.7=30.7(358)94x+93x+0.7=75.5(359)11x+70x+2.5=26.8(360)15x+2x+3=9.8(361)1x+1.9x-4.8=131.5(362)9.1x+1x-3.3=87.6(363)4.7x+8.3x-2.7=23.3(364)0.4x+0.2x-2.4=46.2(365)9x+8.6x-3.3=67.1(366)5.7x+4x-2.5=46(367)1.4x+1.5x-2=148.8(368)1.8x+0.4x-4.2=108(369)0.7x+0.5x-2.1=62.7(370)7x+71x-2.4=21(371)12x+11x-1.6=21.4(372)79x+7x-4=99.2(373)3x+20x-2.3=36.8(374)86x+39x-4.4=133.1(375)79x+34x-4.8=17.8(376)16x+7x-1.1=93.2(377)7x+18x-0.9=24.1(378)39x+50x-4.7=75.4(379)8.3x-3.6x+3.1=17.2(380)3.1x-0.3x+3.4=23(381)8.8x-7.5x+4.8=15.2(382)0.5x-0.2x+1.1=17.9(383)9.9x-3.7x+1.5=44.9(384)7.3x-4.8x+3.9=36.4(385)3.4x-2.7x+4.2=10.5(386)5.3x-0.4x+3.9=38.2(387)3.1x-2.9x+2=4.4(388)75x-17x+3.6=73.2(389)65x-43x+0.5=33.5(390)66x-41x+0.7=28.2(391)94x-40x+3.8=57.8(392)36x-30x+1.4=7.4(393)63x-24x+0.4=23.8(394)33x-22x+3.4=14.4(395)33x-6x+1.6=31.3(396)27x-16x+4.8=26.8(397)2.3x-0.8x-0.9=29.1(398)8.6x-5.2x-2.6=34.8(399)3.6x-2.9x-2.4=1.1(400)0.8x-0.4x-4.7=4.1(401)6x-2.4x-3.7=14.3(402)3.6x-0.5x-4.9=4.4(403)5.4x-1.1x-2.9=22.9(404)2.3x-0.9x-0.8=7.6(405)9.2x-3.1x-4.5=26(406)8x-3x-1.5=19.5(407)16x-14x-3=5(408)19x-15x-3=14.2(409)58x-5x-2.9=44.8(410)53x-6x-2.6=82(411)67x-51x-4.1=18.3(412)83x-58x-2.4=25.1(413)4x-2x-3.3=8.9(414)65x-61x-2.5=1.9(415)18x+8×18=252(416)4x+2×47=262(417)23x+8×4=193(418)8x+24×8=272(419)12x+2×61=206(420)15x+88×2=236(421)9x+27×2=198(422)3x+2×19=200(423)4x+13×3=107(424)5x-4×2=182(425)17x-21×3=22(426)16x-14×4=88(427)22x-20×2=26(428)29x-3×32=20(429)7x-5×2=11(430)7x-50×3=39(431)8x-21×4=76(432)6x-6×7=42(433)0.4x+0.5×19=12.3(434)0.4x+1.5×7=25.7(435)1.8x+0.7×16=23.8(436)0.3x+1.2×13=24.9(437)0.4x+1×16=26(438)0.5x+0.4×23=10.2(439)1.8x+0.6×3=5.4(440)0.2x+0.4×32=19(441)2.3x+1.7×5=26.9(442)11x+30×0.2=12.6(443)9x+5×0.9=6.3(444)5x+8×0.9=18.2(445)10x+6×2.2=22.2(446)7x+7×0.6=6.3(447)8x+2×1.8=10.8(448)33x+10×1.6=35.8(449)11x+14×0.3=21.8(450)11x+4×1.1=14.3(451)3.2x-0.2×29=7(452)0.6x-3.9×2=7.8(453)0.2x-0.3×24=2.6(454)0.5x-1.9×2=9.7(455)3.9x-2.6×3=3.9(456)3.9x-2.1×2=7.5(457)1.9x-0.4×21=3(458)0.5x-0.4×17=3.7(459)2x-1.7×7=2.1(460)5x-8×0.9=10.3(461)5x-14×0.6=7.1(462)10x-2×1.5=10(463)11x-3×1.3=11.5(464)12x-14×0.5=2.6(465)28x-2×3.5=4.2(466)3x-6×0.5=9(467)10x-14×0.9=3.4(468)5x-8×1.3=7.6(469)2(x+34)=108(470)5(x+18)=160(471)3(x+9)=87(472)3(x+38)=156(473)4(3x+12)=180(474)2(11x+22)=176(475)4(2x+7)=60(476)3(x+30)=162(477)3(17x+11)=135(478)3(5x-44)=198(479)9(19x-35)=198(480)4(2x-35)=68(481)6(6x-21)=90(482)5(8x-39)=165(483)5(16x-24)=120(484)12(2x-6)=168(485)13(16x-34)=182(486)5(21x-24)=195(487)2(0.2x+6.6)=19.6(488)4(0.2x+3.5)=40.4(489)4(1.1x+4.2)=25.6(490)5(0.5x+4.1)=35.5(491)7(0.7x+2.5)=42(492)4(0.9x+3.8)=22.4(493)2(8.8x+6.2)=47.6(494)4(0.9x+1.1)=22.4(495)2(0.4x+8.4)=24(496)9(x-1.2)=16.2(497)2(7.6x-6.1)=33.4(498)19(0.4x-3.3)=28.5(499)11(1.5x-4.2)=19.8(500)3(3.6x-0.2)=42.6(501)29(2.2x-7.6)=34.8(502)5(0.9x-4.4)=9.5(503)2(0.4x-3.7)=21.4(504)6(0.2x-6.9)=12.6(505)(6x+48)÷12=5(506)(4x+28)÷28=4(507)(19x+24)÷7=17(508)(8x+4)÷20=7(509)(14x+22)÷9=18(510)(5x+29)÷2=42(511)(6x+38)÷2=67(512)(8x+4)÷3=36(513)(7x+9)÷4=39(514)(9x-19)÷2=13(515)(4x-49)÷19=1(516)(16x-44)÷3=44(517)(12x-46)÷26=7(518)(18x-34)÷2=28(519)(19x-24)÷4=32(520)(13x-47)÷23=7(521)(13x-17)÷10=10(522)(18x-22)÷2=16(523)(9.1x+6.3)÷7=12.6(524)(2.7x+4.9)÷2=25.4(525)(3.3x+7.3)÷16=1.9(526)(2x+5)÷15=2.2(527)(0.3x+5.8)÷11=0.8(528)(8.2x+2.6)÷2=38.2(529)(3x+9.9)÷3=16.3(530)(7.3x+4.9)÷2=42.6(531)(4.5x+8.1)÷3=22.2(532)(2.8x-8.8)÷4=0.6(533)(7.9x-5.8)÷10=1(534)(4.3x-6.4)÷5=14.2(535)(5.8x-9)÷7=12.8(536)(3.2x-3.6)÷10=5.4(537)(9.9x-3.1)÷38=0.7(538)(7.7x-3.8)÷5=13.1(539)(9.4x-8)÷2=5.4(540)(8.9x-5.5)÷6=6.5參考答案(1)x=60(2)x=14(3)x=7(4)x=18(5)x=80(6)x=18(7)x=14(8)x=69(9)x=77(10)x=71(11)x=23(12)x=88(13)x=87(14)x=78(15)x=93(16)x=48(17)x=47(18)x=61(19)x=6.1(20)x=5.5(21)x=1.7(22)x=5.4(23)x=8.4(24)x=6.4(25)x=5.2(26)x=8.7(27)x=7.2(28)x=8.9(29)x=4.5(30)x=6.7(31)x=4.5(32)x=9.5(33)x=9(34)x=8.3(35)x=9.9(36)x=6.5(37)x=34(38)x=53(39)x=43(40)x=87(41)x=4(42)x=35(43)x=99(44)x=93(45)x=65(46)x=28(47)x=34(48)x=40(49)x=19(50)x=74(51)x=21(52)x=15(53)x=10(54)x=12(55)x=0.6(56)x=3.4(57)x=2.7(58)x=4.2(59)x=5.9(60)x=1.2(61)x=8.2(62)x=7.5(63)x=7.9(64)x=4.9(65)x=3.8(66)x=5.9(67)x=6(68)x=5.6(69)x=7.6(70)x=0.6(71)x=6.4(72)x=0.9(73)x=5(74)x=11(75)x=9(76)x=9(77)x=2(78)x=6(79)x=5(80)x=19(81)x=8(82)x=38(83)x=2(84)x=4(85)x=23(86)x=4(87)x=35(88)x=41(89)x=14(90)x=5(91)x=0.2(92)x=1.1(93)x=1.3(94)x=0.6(95)x=1.7(96)x=0.9(97)x=2.9(98)x=0.6(99)x=0.9(100)x=27(101)x=14(102)x=6(103)x=2(104)x=22(105)x=10(106)x=47(107)x=18(108)x=48(109)x=16(110)x=31(111)x=48(112)x=7(113)x=33(114)x=24(115)x=5(116)x=88(117)x=14(118)x=72(119)x=75(120)x=28(121)x=120(122)x=130(123)x=119(124)x=27(125)x=100(126)x=32(127)x=7.2(128)x=14.5(129)x=12.6(130)x=13.6(131)x=4.8(132)x=19.8(133)x=14.7(134)x=11.2(135)x=16.8(136)x=32(137)x=73(138)x=14(139)x=57(140)x=7(141)x=3(142)x=14(143)x=11(144)x=2(145)x=2(146)x=19(147)x=75(148)x=99(149)x=9(150)x=13(151)x=11(152)x=2(153)x=2(154)x=0.7(155)x=0.5(156)x=5.6(157)x=0.3(158)x=1.3(159)x=6.6(160)x=0.2(161)x=0.3(162)x=0.3(163)x=27(164)x=2(165)x=7(166)x=25(167)x=30(168)x=39(169)x=8(170)x=9(171)x=4(172)x=1.4(173)x=0.3(174)x=0.7(175)x=7.1(176)x=3.9(177)x=0.2(178)x=0.2(179)x=0.2(180)x=0.9(181)x=3(182)x=46(183)x=13(184)x=10(185)x=11(186)x=21(187)x=6(188)x=6(189)x=19(190)x=95(191)x=4(192)x=3(193)x=2(194)x=28(195)x=6(196)x=2(197)x=3(198)x=2(199)x=19(200)x=2(201)x=5(202)x=9(203)x=12(204)x=2(205)x=36(206)x=45(207)x=2(208)x=7(209)x=45(210)x=7(211)x=4(212)x=39(213)x=3(214)x=66(215)x=5(216)x=4(217)x=1(218)x=1.7(219)x=3.7(220)x=1.7(221)x=0.3(222)x=9.7(223)x=0.9(224)x=7.3(225)x=2(226)x=6(227)x=20(228)x=21(229)x=3(230)x=16(231)x=2(232)x=34(233)x=2(234)x=4(235)x=0.7(236)x=0.3(237)x=0.2(238)x=0.3(239)x=1.2(240)x=0.2(241)x=8.3(242)x=0.7(243)x=1.3(244)x=4(245)x=26(246)x=4(247)x=2(248)x=66(249)x=16(250)x=8(251)x=76(252)x=48(253)x=15(254)x=6(255)x=3(256)x=2(257)x=4(258)x=5(259)x=5(260)x=80(261)x=99(262)x=9.4(263)x=0.5(264)x=0.3(265)x=0.9(266)x=0.4(267)x=0.4(268)x=1(269)x=1.2(270)x=0.8(271)x=40(272)x=13(273)x=14(274)x=28(275)x=2(276)x=21(277)x=3(278)x=13(279)x=7(280)x=3(281)x=8(282)x=5(283)x=29(284)x=9(285)x=8(286)x=18(287)x=8(288)x=14(289)x=16(290)x=7(291)x=6(292)x=10(293)x=9(294)x=9(295)x=12(296)x=29(297)x=10(298)x=75(299)x=11(300)x=7(301)x=14(302)x=4(303)x=7(304)x=22(305)x=2(306)x=8(307)x=21(308)x=16(309)x=33(310)x=12(311)x=8(312)x=23(313)x=7(314)x=5(315)x=3(316)x=32(317)x=11(318)x=9(319)x=14(320)x=19(321)x=10(322)x=14(323)x=2(324)x=2(325)x=10(326)x=5(327)x=8(328)x=33(329)x=13(330)x=4(331)x=11(332)x=13(333)x=18(334)x=10(335)x=10(336)x=11(337)x=8(338)x=3(339)x=5(340)x=9(341)x=5(342)x=5(343)x=8(344)x=17(345)x=6(346)x=9(347)x=9(348)x=22(349)x=9(350)x=2(351)x=7(352)x=0.6(353)x=0.2(354)x=0.6(355)x=0.4(356)x=0.6(357)x=0.6(358)x=0.4(359)x=0.3(360)x=0.4(361)x=47(362)x=9(363)x=2(364)x=81(365)x=4(366)x=5(367)x=52(368)x=51(369)x=54(370)x=0.3(371)x=1(372)x=1.2(373)x=1.7(374)x=1.1(375)x=0.2(376)x=4.1(377)x=1(378)x=0.9(379)x=3(380)x=7(381)x=8(382)x=56(383)x=7(384)x=13(385)x=9(386)x=7(387)x=12(388)x=1.2(389)x=1.5(390)x=1.1(391)x