五年级数学(方程)专项练习题及答案

五年级数学(方程)专项练习题及答案(1)x+18=99(2)x+62=67(3)x+65=163(4)x+52=117(5)x+84=116(6)x+5=84(7)x+31=117(8)x+84=91(9)x+83=164(10)x-74=13(11)x-63=28(12)x-6=13(13)x-3=94(14)x-55=21(15)x-20=53(16)x-71=21(17)x-37=31(18)x-15=11(19)x+5.5=13.6(20)x+5.2=13.6(21)x+2.6=8.8(22)x+7.8=13.4(23)x+1.3=3.5(24)x+0.2=9.5(25)x+2.2=2.9(26)x+7.3=9.6(27)x+3.4=7(28)x-3.7=4.6(29)x-1.4=7.1(30)x-3.6=6.2(31)x-0.3=5.4(32)x-3.1=4.4(33)x-7.1=2.4(34)x-4.6=3.1(35)x-3=4.8(36)x-1.1=4.2(37)43+x=135(38)86+x=128(39)77+x=136(40)10+x=46(41)30+x=107(42)37+x=53(43)21+x=35(44)74+x=124(45)99+x=111(46)62-x=33(47)91-x=70(48)94-x=31(49)72-x=65(50)53-x=38(51)59-x=46(52)90-x=69(53)66-x=59(54)27-x=19(55)6.9+x=7.5(56)8.9+x=10.4(57)3.2+x=12.2(58)6.9+x=13.5(59)5.2+x=5.6(60)4.6+x=14.4(61)9.8+x=19.2(62)2.6+x=3.2(63)6.4+x=8.6(64)8.3-x=3.6(65)8.2-x=1(66)7.6-x=2(67)8.4-x=7.5(68)9.5-x=6.5(69)4.9-x=4.6(70)8.7-x=3.8(71)7.4-x=1.8(72)6.5-x=1.1(73)6x=42(74)14x=56(75)5x=185(76)8x=64(77)2x=34(78)8x=96(79)8x=48(80)5x=50(81)6x=108(82)0.7x=4.9(83)1.1x=4.4(84)0.2x=5.2(85)0.2x=9.6(86)0.3x=17.1(87)0.2x=11(88)2.4x=19.2(89)6.2x=18.6(90)1.5x=7.5(91)2x=3.8(92)26x=10.4(93)2x=8(94)6x=4.2(95)22x=8.8(96)47x=9.4(97)33x=16.5(98)35x=17.5(99)2x=10.6(100)156÷x=3(101)126÷x=6(102)54÷x=27(103)158÷x=2(104)48÷x=6(105)84÷x=21(106)63÷x=9(107)72÷x=3(108)174÷x=29(109)12.6÷x=0.6(110)19.8÷x=0.9(111)15.6÷x=3.9(112)7.6÷x=0.4(113)10.2÷x=0.2(114)12÷x=1(115)8.8÷x=0.2(116)12÷x=2(117)13.8÷x=0.6(118)x÷3=46(119)x÷14=7(120)x÷11=5(121)x÷11=11(122)x÷98=2(123)x÷28=4(124)x÷19=9(125)x÷2=35(126)x÷63=2(127)x÷3=0.4(128)x÷8=0.2(129)x÷5=2.5(130)x÷71=0.2(131)x÷2=0.8(132)x÷11=1(133)x÷18=1(134)x÷4=0.2(135)x÷10=1.9(136)14x+29=169(137)4x+23=59(138)52x+24=180(139)7x+14=154(140)51x+46=199(141)37x+13=161(142)2x+58=78(143)13x+23=127(144)24x+55=175(145)12x-58=74(146)2x-57=71(147)7x-15=153(148)2x-32=118(149)14x-52=60(150)3x-29=109(151)7x-31=109(152)23x-50=134(153)4x-30=146(154)25x+4.1=16.6(155)12x+3.4=14.2(156)4x+1.8=13.8(157)18x+1.6=5.2(158)5x+3=20.5(159)23x+3.6=19.7(160)34x+5.4=19(161)26x+1.7=6.9(162)22x+5.2=14(163)2.1x+5.3=13.7(164)5.7x+5.5=22.6(165)0.9x+4.7=8.3(166)0.2x+4.3=11.9(167)5.5x+4.3=15.3(168)3x+1.6=13.6(169)0.2x+2.6=17.8(170)1.6x+3.7=10.1(171)0.7x+5.4=13.8(172)10x-1.9=18.1(173)8x-3.4=6.2(174)8x-2=2(175)15x-3.5=1(176)2x-2.4=12.8(177)8x-4.4=14.8(178)39x-1.4=10.3(179)28x-3.5=13.3(180)77x-2.4=13(181)0.2x-3.8=11.8(182)0.5x-3=9(183)0.4x-3.7=4.3(184)3.8x-2.3=12.9(185)0.2x-1.2=5.6(186)0.2x-1.8=11.2(187)4x-4.7=3.3(188)2.2x-1.3=5.3(189)2.2x-4.5=4.3(190)78+3x=144(191)95+16x=287(192)43+5x=243(193)163+63x=352(194)50+7x=127(195)126+12x=270(196)136+39x=292(197)24+4x=144(198)68+8x=124(199)125-26x=21(200)187-10x=87(201)65-6x=23(202)42-16x=10(203)101-7x=80(204)184-4x=168(205)162-2x=72(206)173-15x=98(207)152-5x=52(208)2.2+1.6x=11.8(209)1.4+0.7x=6.3(210)12.7+0.2x=18.3(211)10.3+3.5x=27.8(212)4.9+1.8x=17.5(213)2.3+0.2x=14.7(214)9.4+0.5x=26.4(215)5.7+7.6x=20.9(216)14.9+0.3x=25.1(217)3.8+2x=13.2(218)13.9+7x=27.2(219)18+64x=37.2(220)12.7+22x=19.3(221)17+10x=22(222)13.9+44x=27.1(223)15.8+17x=26(224)12.5+3x=29.3(225)3.2+14x=21.4(226)6.8-0.2x=1.4(227)13.3-5.6x=2.1(228)15.3-2.6x=2.3(229)14.8-3x=2.8(230)14.7-1.5x=1.2(231)17.2-0.6x=12.4(232)16.1-0.2x=14.5(233)14.4-2.4x=9.6(234)9.6-0.4x=4(235)19.3-2x=8.7(236)17-29x=11.2(237)12.9-15x=2.4(238)7.2-7x=2.3(239)15.6-11x=2.4(240)19.9-3x=5.5(241)13.8-5x=3.8(242)10.6-16x=5.8(243)15.8-2x=5(244)4x÷36=5(245)26x÷13=14(246)30x÷2=45(247)3x÷8=24(248)5x÷10=8(249)49x÷28=7(250)5x÷15=11(251)2x÷6=14(252)9x÷21=6(253)1.6x÷22=0.8(254)1.5x÷75=0.2(255)9.9x÷66=0.3(256)0.2x÷4=4(257)0.2x÷6=3.3(258)1.5x÷3=3(259)1.8x÷2=2.7(260)2.4x÷6=0.8(261)1.5x÷5=0.9(262)6x÷5=3(263)13x÷6=2.6(264)57x÷38=0.3(265)74x÷37=0.4(266)25x÷5=1.5(267)20x÷18=1(268)90x÷45=0.4(269)30x÷10=1.5(270)3x÷21=0.7(271)10x+11x=63(272)13x+12x=125(273)9x+13x=66(274)3x+2x=175(275)10x+9x=133(276)16x+3x=152(277)8x+19x=108(278)16x+12x=84(279)2x+7x=117(280)12x-8x=28(281)4x-2x=34(282)5x-2x=18(283)19x-6x=91(284)13x-10x=27(285)14x-6x=64(286)10x-3x=14(287)12x-6x=42(288)13x-3x=150(289)3.9x+1.2x=91.8(290)0.8x+8.9x=38.8(291)0.7x+1.1x=39.6(292)9.8x+2.8x=126(293)5.9x+2.7x=103.2(294)3.4x+2.2x=134.4(295)1.1x+3.4x=85.5(296)2.9x+1.7x=18.4(297)3x+1.5x=22.5(298)8.4x-5.2x=12.8(299)2.8x-2.6x=6.8(300)1.3x-0.9x=13.2(301)3.8x-3x=3.2(302)1.2x-0.6x=16.2(303)7.3x-5.5x=5.4(304)7.1x-6.1x=7(305)7x-2.9x=12.3(306)9.4x-7.3x=10.5(307)13x+8x+17=164(308)7x+2x+28=181(309)8x+9x+36=376(310)10x+5x+8=113(311)9x+13x+22=66(312)17x+15x+16=176(313)15x+16x+36=284(314)5x+16x+27=279(315)2x+6x+27=291(316)9x+10x-38=266(317)4x+6x-25=165(318)2x+3x-33=67(319)15x+4x-25=184(320)12x+19x-44=18(321)19x+2x-33=177(322)15x+16x-11=51(323)9x+13x-10=78(324)15x+6x-9=96(325)13x-6x+36=85(326)8x-3x+43=153(327)10x-4x+49=97(328)15x-12x+18=33(329)8x-3x+21=116(330)15x-5x+29=69(331)6x-2x+47=115(332)14x-3x+14=102(333)14x-6x+31=103(334)12x-4x-3=53(335)18x-3x-10=110(336)18x-9x-18=18(337)6x-4x-20=44(338)19x-7x-40=20(339)7x-3x-46=58(340)8x-4x-10=14(341)6x-3x-42=51(342)16x-6x-9=21(343)5.9x+5.4x+4.2=117.2(344)3.7x+4.9x+2.5=88.5(345)1.7x+2.5x+0.3=130.5(346)0.3x+1x+4.5=14.9(347)3.5x+1.5x+0.7=45.7(348)0.7x+0.2x+0.2=38.9(349)2.3x+9.9x+1.5=99.1(350)0.4x+4.6x+2=47(351)9.5x+0.7x+4.3=96.1(352)66x+43x+2.1=143.8(353)18x+33x+1=21.4(354)73x+78x+4.6=34.8(355)11x+10x+2.2=130.3(356)36x+70x+2.1=76.3(357)9x+18x+2.2=10.3(358)41x+82x+2.7=88.8(359)75x+41x+2.6=118.6(360)44x+41x+2.3=27.8(361)4.4x+5.1x-4.4=166.6(362)0.3x+0.2x-3.5=42.5(363)2.4x+7.3x-3.5=25.6(364)9.9x+2.5x-3.5=33.7(365)1x+4.9x-0.4=46.8(366)1.4x+7.1x-1.6=83.4(367)4x+3.4x-1.1=13.7(368)1.6x+3.4x-4.4=65.6(369)5.6x+3.4x-0.8=71.2(370)5x+42x-2=54.4(371)19x+35x-1.6=128(372)64x+35x-4.7=143.8(373)97x+6x-0.2=82.2(374)35x+26x-0.6=115.3(375)19x+7x-3.1=85.3(376)42x+45x-1.7=102.7(377)11x+80x-0.4=54.2(378)37x+39x-0.9=67.5(379)7.3x-6.8x+3.9=6.9(380)5.3x-1.5x+1.2=20.2(381)3.8x-2.2x+2.8=39.6(382)3.9x-3.5x+4.3=11.9(383)7.9x-4.5x+2.4=36.4(384)6.3x-5.3x+1.1=9.1(385)6.3x-1.6x+1.1=43.4(386)7.4x-1x+3.3=54.5(387)8x-7.3x+1.2=2.6(388)40x-29x+0.8=28.3(389)81x-45x+1.4=37.4(390)13x-4x+0.6=54.6(391)5x-2x+4.8=11.1(392)94x-60x+1.4=8.2(393)19x-2x+2.8=65.7(394)59x-14x+2.2=20.2(395)91x-40x+1.2=11.4(396)61x-56x+3=8.5(397)1.4x-0.5x-4.7=36.7(398)9.8x-5.8x-3.4=24.6(399)9.4x-0.5x-4.3=84.7(400)8.9x-8.7x-0.3=1.7(401)9.9x-5.2x-0.4=18.4(402)8.4x-7.6x-4.5=4.3(403)4.5x-3.7x-1=5.4(404)1x-0.7x-3.9=15.3(405)4.3x-3.3x-1.6=3.4(406)48x-27x-1.8=4.5(407)64x-47x-1.3=22.5(408)8x-4x-0.3=20.9(409)58x-19x-1.3=45.5(410)6x-2x-1.5=1.7(411)20x-11x-3.9=12.3(412)57x-31x-1.1=14.5(413)61x-15x-3.3=19.7(414)34x-28x-4.5=4.5(415)17x+18×10=350(416)8x+2×33=266(417)2x+16×11=242(418)8x+29×6=198(419)6x+45×4=252(420)2x+66×3=212(421)2x+4×5=106(422)4x+16×11=300(423)5x+44×2=253(424)21x-12×7=105(425)6x-43×2=28(426)7x-2×23=24(427)2x-24×3=110(428)12x-7×8=136(429)27x-2×46=70(430)4x-9×2=162(431)3x-7×22=20(432)2x-4×3=38(433)0.3x+2.1×8=21(434)0.4x+2.8×6=23.6(435)3.1x+0.3×30=21.4(436)1x+0.4×26=12.4(437)1.9x+0.2×19=17.1(438)0.8x+0.9×21=37.3(439)0.3x+2.3×3=12.9(440)0.2x+0.5×12=12(441)0.5x+0.9×12=25.3(442)4x+33×0.5=35.3(443)19x+7×2.2=26.8(444)4x+22×0.8=36(445)9x+3×1=14.7(446)16x+18×0.4=12(447)5x+3×4.6=25.8(448)21x+11×1.4=25.9(449)3x+26×0.2=7.3(450)20x+9×0.4=9.6(451)0.4x-0.8×11=8(452)1x-0.2×19=4.2(453)2.1x-0.6×22=5.7(454)2.6x-0.4×6=13.2(455)2.3x-4.6×3=4.6(456)3.5x-0.7×6=13.3(457)0.4x-0.2×30=2.4(458)2.5x-0.5×2=9(459)2.3x-0.4×12=13.6(460)20x-3×2.6=6.2(461)2x-2×1.1=3.2(462)4x-4×1.6=13.2(463)20x-7×1.5=5.5(464)29x-6×1.4=6.1(465)11x-6×0.5=2.5(466)5x-18×0.4=10.3(467)30x-8×0.5=8(468)10x-5×2.6=7(469)2(8x+9)=146(470)2(8x+11)=54(471)2(21x+34)=152(472)7(x+17)=133(473)2(2x+2)=136(474)2(11x+26)=184(475)5(x+20)=145(476)5(x+27)=185(477)2(4x+27)=134(478)5(18x-5)=155(479)4(2x-29)=92(480)5(10x-33)=85(481)2(2x-16)=68(482)5(4x-11)=105(483)9(3x-22)=153(484)2(7x-40)=200(485)16(10x-8)=192(486)14(x-6)=154(487)3(6.3x+0.4)=39(488)5(2.3x+1.6)=42.5(489)3(0.3x+8.4)=41.4(490)3(0.2x+4.2)=23.4(491)6(2.2x+1.2)=33.6(492)4(2.4x+4.8)=38.4(493)14(0.9x+0.7)=47.6(494)3(0.2x+8.7)=27.9(495)4(1.5x+8.7)=46.8(496)13(0.5x-9.1)=24.7(497)23(2.5x-6.3)=27.6(498)16(0.7x-4.7)=25.6(499)10(3.5x-5)=20(500)12(0.5x-2.6)=28.8(501)3(0.6x-5.8)=18.6(502)23(2.8x-3.8)=41.4(503)13(5.3x-9.6)=13(504)2(3.3x-2.2)=28.6(505)(3x+9)÷2=18(506)(11x+38)÷4=48(507)(3x+45)÷22=6(508)(19x+34)÷3=81(509)(11x+42)÷20=12(510)(3x+48)÷3=42(511)(8x+26)÷5=18(512)(13x+26)÷8=13(513)(12x+12)÷30=8(514)(13x-8)÷10=20(515)(10x-10)÷25=2(516)(14x-20)÷18=2(517)(9x-25)÷2=64(518)(9x-33)÷11=6(519)(16x-28)÷5=20(520)(10x-34)÷24=4(521)(16x-12)÷14=14(522)(2x-17)÷17=1(523)(2.9x+2)÷22=2.2(524)(5.1x+0.8)÷8=10.3(525)(8.9x+6.8)÷6=13(526)(4.3x+5.5)÷25=2.8(527)(7.3x+8.1)÷2=36.9(528)(1.1x+4.6)÷3=3(529)(0.5x+2.5)÷10=0.4(530)(8.7x+5.6)÷2=20.2(531)(7.3x+2.9)÷25=0.7(532)(2.7x-4.2)÷11=3.3(533)(5.7x-7.5)÷2=4.8(534)(2.1x-3.2)÷38=0.8(535)(2.8x-0.6)÷38=0.5(536)(9.2x-9.5)÷13=2.1(537)(5.9x-0.5)÷17=2.4(538)(3.6x-5.6)÷2=2.6(539)(4.5x-3.9)÷32=0.3(540)(4.1x-3)÷2=14.9参考答案(1)x=81(2)x=5(3)x=98(4)x=65(5)x=32(6)x=79(7)x=86(8)x=7(9)x=81(10)x=87(11)x=91(12)x=19(13)x=97(14)x=76(15)x=73(16)x=92(17)x=68(18)x=26(19)x=8.1(20)x=8.4(21)x=6.2(22)x=5.6(23)x=2.2(24)x=9.3(25)x=0.7(26)x=2.3(27)x=3.6(28)x=8.3(29)x=8.5(30)x=9.8(31)x=5.7(32)x=7.5(33)x=9.5(34)x=7.7(35)x=7.8(36)x=5.3(37)x=92(38)x=42(39)x=59(40)x=36(41)x=77(42)x=16(43)x=14(44)x=50(45)x=12(46)x=29(47)x=21(48)x=63(49)x=7(50)x=15(51)x=13(52)x=21(53)x=7(54)x=8(55)x=0.6(56)x=1.5(57)x=9(58)x=6.6(59)x=0.4(60)x=9.8(61)x=9.4(62)x=0.6(63)x=2.2(64)x=4.7(65)x=7.2(66)x=5.6(67)x=0.9(68)x=3(69)x=0.3(70)x=4.9(71)x=5.6(72)x=5.4(73)x=7(74)x=4(75)x=37(76)x=8(77)x=17(78)x=12(79)x=6(80)x=10(81)x=18(82)x=7(83)x=4(84)x=26(85)x=48(86)x=57(87)x=55(88)x=8(89)x=3(90)x=5(91)x=1.9(92)x=0.4(93)x=4(94)x=0.7(95)x=0.4(96)x=0.2(97)x=0.5(98)x=0.5(99)x=5.3(100)x=52(101)x=21(102)x=2(103)x=79(104)x=8(105)x=4(106)x=7(107)x=24(108)x=6(109)x=21(110)x=22(111)x=4(112)x=19(113)x=51(114)x=12(115)x=44(116)x=6(117)x=23(118)x=138(119)x=98(120)x=55(121)x=121(122)x=196(123)x=112(124)x=171(125)x=70(126)x=126(127)x=1.2(128)x=1.6(129)x=12.5(130)x=14.2(131)x=1.6(132)x=11(133)x=18(134)x=0.8(135)x=19(136)x=10(137)x=9(138)x=3(139)x=20(140)x=3(141)x=4(142)x=10(143)x=8(144)x=5(145)x=11(146)x=64(147)x=24(148)x=75(149)x=8(150)x=46(151)x=20(152)x=8(153)x=44(154)x=0.5(155)x=0.9(156)x=3(157)x=0.2(158)x=3.5(159)x=0.7(160)x=0.4(161)x=0.2(162)x=0.4(163)x=4(164)x=3(165)x=4(166)x=38(167)x=2(168)x=4(169)x=76(170)x=4(171)x=12(172)x=2(173)x=1.2(174)x=0.5(175)x=0.3(176)x=7.6(177)x=2.4(178)x=0.3(179)x=0.6(180)x=0.2(181)x=78(182)x=24(183)x=20(184)x=4(185)x=34(186)x=65(187)x=2(188)x=3(189)x=4(190)x=22(191)x=12(192)x=40(193)x=3(194)x=11(195)x=12(196)x=4(197)x=30(198)x=7(199)x=4(200)x=10(201)x=7(202)x=2(203)x=3(204)x=4(205)x=45(206)x=5(207)x=20(208)x=6(209)x=7(210)x=28(211)x=5(212)x=7(213)x=62(214)x=34(215)x=2(216)x=34(217)x=4.7(218)x=1.9(219)x=0.3(220)x=0.3(221)x=0.5(222)x=0.3(223)x=0.6(224)x=5.6(225)x=1.3(226)x=27(227)x=2(228)x=5(229)x=4(230)x=9(231)x=8(232)x=8(233)x=2(234)x=14(235)x=5.3(236)x=0.2(237)x=0.7(238)x=0.7(239)x=1.2(240)x=4.8(241)x=2(242)x=0.3(243)x=5.4(244)x=45(245)x=7(246)x=3(247)x=64(248)x=16(249)x=4(250)x=33(251)x=42(252)x=14(253)x=11(254)x=10(255)x=2(256)x=80(257)x=99(258)x=6(259)x=3(260)x=2(261)x=3(262)x=2.5(263)x=1.2(264)x=0.2(265)x=0.2(266)x=0.3(267)x=0.9(268)x=0.2(269)x=0.5(270)x=4.9(271)x=3(272)x=5(273)x=3(274)x=35(275)x=7(276)x=8(277)x=4(278)x=3(279)x=13(280)x=7(281)x=17(282)x=6(283)x=7(284)x=9(285)x=8(286)x=2(287)x=7(288)x=15(289)x=18(290)x=4(291)x=22(292)x=10(293)x=12(294)x=24(295)x=19(296)x=4(297)x=5(298)x=4(299)x=34(300)x=33(301)x=4(302)x=27(303)x=3(304)x=7(305)x=3(306)x=5(307)x=7(308)x=17(309)x=20(310)x=7(311)x=2(312)x=5(313)x=8(314)x=12(315)x=33(316)x=16(317)x=19(318)x=20(319)x=11(320)x=2(321)x=10(322)x=2(323)x=4(324)x=5(325)x=7(326)x=22(327)x=8(328)x=5(329)x=19(330)x=4(331)x=17(332)x=8(333)x=9(334)x=7(335)x=8(336)x=4(337)x=32(338)x=5(339)x=26(340)x=6(341)x=31(342)x=3(343)x=10(344)x=10(345)x=31(346)x=8(347)x=9(348)x=43(349)x=8(350)x=9(351)x=9(352)x=1.3(353)x=0.4(354)x=0.2(355)x=6.1(356)x=0.7(357)x=0.3(358)x=0.7(359)x=1(360)x=0.3(361)x=18(362)x=92(363)x=3(364)x=3(365)x=8(366)x=10(367)x=2(368)x=14(369)x=8(370)x=1.2(371)x=2.4(372)x=1.5(373)x=0.8(374)x=1.9(375)x=3.4(376)x=1.2(377)x=0.6(378)x=0.9(379)x=6(380)x=5(381)x=23(382)x=19(383)x=10(384)x=8(385)x=9(386)x=8(387)x=2(388)x=2.5(389)x=1(390)x=6(391)x=2.1(3