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+58=120(2)x+7=55(3)x+84=100(4)x+89=145(5)x+25=52(6)x+86=161(7)x+15=64(8)x+90=155(9)x+98=179(10)x-2=49(11)x-43=31(12)x-11=10(13)x-34=12(14)x-69=25(15)x-14=64(16)x-56=12(17)x-19=50(18)x-10=73(19)x+4.1=12.8(20)x+7.6=14.4(21)x+0.2=7.3(22)x+8.8=13.4(23)x+2=10.6(24)x+2.1=9.2(25)x+3.2=12.4(26)x+6=10.9(27)x+4.7=13.5(28)x-3.6=5.9(29)x-1.2=2.5(30)x-2.4=1.4(31)x-3.9=1.1(32)x-3.6=2.9(33)x-3=4(34)x-5=2.9(35)x-0.5=1.1(36)x-3.8=1.6(37)27+x=118(38)41+x=70(39)54+x=117(40)65+x=124(41)36+x=115(42)23+x=84(43)94+x=112(44)69+x=87(45)98+x=110(46)97-x=45(47)50-x=31(48)91-x=38(49)24-x=22(50)93-x=54(51)89-x=52(52)64-x=19(53)94-x=50(54)99-x=48(55)2.3+x=9(56)1.1+x=8.4(57)9.7+x=16.5(58)6.1+x=14.5(59)3.2+x=6(60)8.4+x=14(61)1+x=9.8(62)3.6+x=9.7(63)3.7+x=4.6(64)3.3-x=1.1(65)4-x=2.7(66)8.7-x=4.9(67)7.8-x=2.2(68)5.7-x=1.9(69)6.5-x=6.1(70)8.2-x=3.4(71)6.7-x=4.1(72)5.1-x=2(73)4x=112(74)21x=147(75)4x=20(76)5x=90(77)2x=60(78)3x=144(79)97x=194(80)2x=186(81)2x=180(82)0.9x=7.2(83)0.5x=12(84)0.6x=19.2(85)2.9x=17.4(86)0.5x=10.5(87)0.7x=3.5(88)0.2x=14.2(89)0.6x=1.2(90)3.8x=7.6(91)14x=16.8(92)5x=6(93)4x=9.6(94)4x=13.2(95)6x=14.4(96)42x=16.8(97)3x=4.5(98)3x=1.5(99)5x=7.5(100)161÷x=23(101)62÷x=31(102)48÷x=2(103)92÷x=4(104)15÷x=5(105)51÷x=3(106)171÷x=19(107)12÷x=2(108)176÷x=16(109)5.6÷x=0.4(110)10.2÷x=0.6(111)17.6÷x=0.8(112)14÷x=0.4(113)2.5÷x=0.5(114)15÷x=2.5(115)10.8÷x=0.3(116)15.6÷x=3.9(117)9.9÷x=1.1(118)x÷6=17(119)x÷21=5(120)x÷35=3(121)x÷49=3(122)x÷15=9(123)x÷76=2(124)x÷23=6(125)x÷6=24(126)x÷39=4(127)x÷36=0.4(128)x÷11=0.7(129)x÷10=1.8(130)x÷11=1.8(131)x÷10=1.9(132)x÷8=0.5(133)x÷49=0.2(134)x÷16=1.2(135)x÷49=0.4(136)12x+41=161(137)55x+12=122(138)11x+19=41(139)3x+23=185(140)22x+35=79(141)2x+56=152(142)3x+48=132(143)2x+40=144(144)19x+41=231(145)12x-42=90(146)35x-43=132(147)3x-11=115(148)2x-33=29(149)46x-14=78(150)8x-19=21(151)26x-34=70(152)9x-33=120(153)13x-37=158(154)32x+3.7=19.7(155)7x+1=13.6(156)7x+2.9=7.8(157)16x+2.6=17(158)2x+2.9=6.3(159)6x+3.7=12.1(160)30x+3.1=18.1(161)14x+1.8=8.8(162)7x+4=22.2(163)0.6x+2.5=13.3(164)2.3x+2.5=9.4(165)0.8x+3.7=18.1(166)0.9x+5.9=16.7(167)0.3x+2.7=16.2(168)0.2x+3.3=11.3(169)0.5x+5.6=12.6(170)0.5x+3.6=10.6(171)1.3x+2=11.1(172)12x-3.1=4.1(173)5x-4.5=5.5(174)7x-1.3=16.2(175)29x-1.1=10.5(176)100x-5.9=14.1(177)8x-3.4=7.8(178)13x-4.5=9.8(179)45x-3.3=14.7(180)50x-4.5=15.5(181)3.9x-1=10.7(182)0.2x-5=10(183)2.5x-3.8=16.2(184)0.2x-1.3=6.5(185)2.2x-5.4=5.6(186)5.4x-5.6=5.2(187)2x-2.4=17.6(188)0.5x-1.8=14.2(189)0.4x-2.4=2.4(190)33+3x=42(191)190+53x=349(192)93+2x=141(193)26+11x=48(194)30+2x=202(195)65+76x=217(196)84+60x=204(197)100+58x=216(198)50+2x=108(199)193-15x=13(200)74-2x=50(201)178-12x=130(202)186-15x=51(203)157-2x=85(204)133-24x=85(205)196-31x=10(206)143-13x=117(207)132-4x=48(208)5.3+6.3x=24.2(209)2.8+2.9x=14.4(210)16.4+1.6x=21.2(211)14+3.6x=28.4(212)17.6+1.9x=21.4(213)8.7+2.5x=23.7(214)11.9+0.9x=13.7(215)16.4+3.1x=25.7(216)18.3+0.7x=20.4(217)18.2+30x=33.2(218)3.8+4x=11.8(219)1+7x=10.1(220)5+36x=19.4(221)9.6+5x=24.6(222)11.3+59x=29(223)17.2+2x=27.2(224)11.4+23x=18.3(225)1.7+4x=4.9(226)18-1.4x=8.2(227)15.6-3.4x=5.4(228)6.8-0.3x=4.7(229)11-1x=7(230)17.2-7x=3.2(231)10.4-0.5x=8.9(232)16.9-1.7x=6.7(233)18.8-2x=14.8(234)13.6-0.2x=11.2(235)19-2x=17.2(236)17.5-22x=13.1(237)15-54x=4.2(238)18.3-17x=9.8(239)19.1-27x=11(240)10.6-2x=2.6(241)19.6-2x=5.8(242)14.5-2x=2.7(243)8.1-4x=4.9(244)81x÷54=3(245)3x÷12=8(246)28x÷14=12(247)3x÷2=42(248)84x÷6=28(249)14x÷56=3(250)12x÷4=30(251)54x÷12=9(252)12x÷18=6(253)1.8x÷4=4.5(254)6x÷4=4.5(255)4.1x÷82=0.2(256)3x÷20=0.6(257)0.4x÷10=1.6(258)1x÷6=1.5(259)0.4x÷3=2(260)1x÷75=0.2(261)0.6x÷5=1.2(262)36x÷8=1.8(263)2x÷6=2.1(264)20x÷15=0.4(265)8x÷12=1.2(266)52x÷12=1.3(267)6x÷16=0.9(268)28x÷14=1(269)18x÷60=0.3(270)3x÷9=1.8(271)7x+3x=40(272)15x+8x=92(273)4x+3x=294(274)19x+14x=165(275)16x+15x=217(276)11x+7x=180(277)2x+10x=108(278)7x+12x=152(279)4x+11x=270(280)8x-5x=60(281)18x-15x=21(282)14x-2x=132(283)10x-2x=56(284)14x-5x=117(285)10x-2x=144(286)16x-2x=154(287)17x-10x=35(288)15x-10x=55(289)3.5x+3.7x=151.2(290)2x+0.9x=72.5(291)2.2x+4.3x=58.5(292)5x+6x=22(293)1.1x+0.4x=87(294)3x+3.5x=104(295)2.3x+8.2x=42(296)5.6x+4.1x=87.3(297)1.6x+2x=165.6(298)1.7x-1.3x=15.6(299)3.6x-0.7x=46.4(300)8.5x-7.2x=7.8(301)4.9x-0.5x=74.8(302)4.6x-0.5x=61.5(303)9.9x-1.6x=41.5(304)7.5x-3.8x=44.4(305)1.8x-0.8x=40(306)2.2x-0.5x=59.5(307)10x+6x+28=220(308)4x+5x+2=173(309)13x+12x+32=157(310)9x+4x+4=147(311)8x+3x+48=213(312)15x+5x+34=254(313)7x+4x+11=99(314)7x+2x+43=223(315)10x+15x+38=188(316)9x+8x-9=212(317)6x+3x-21=78(318)18x+19x-47=27(319)3x+6x-12=231(320)8x+13x-32=157(321)2x+5x-12=121(322)10x+16x-44=242(323)10x+2x-21=63(324)15x+4x-36=173(325)16x-8x+29=101(326)4x-2x+26=60(327)17x-12x+48=98(328)12x-10x+26=52(329)17x-9x+4=60(330)12x-5x+39=116(331)17x-5x+46=130(332)17x-3x+38=164(333)6x-2x+36=96(334)17x-13x-14=14(335)14x-3x-37=84(336)19x-10x-18=36(337)14x-2x-9=39(338)5x-3x-6=12(339)9x-3x-16=74(340)5x-2x-25=74(341)18x-11x-12=51(342)12x-3x-43=92(343)9.6x+8.9x+1.5=149.5(344)3.3x+8.5x+3.3=50.5(345)1x+0.6x+4.9=163.3(346)2.6x+0.3x+1=44.5(347)7.8x+8.2x+2.3=34.3(348)7x+5x+2.9=158.9(349)9.6x+6.1x+3.2=81.7(350)4.4x+7.6x+4.1=52.1(351)3.9x+1.1x+2.4=42.4(352)3x+2x+0.7=12.2(353)25x+49x+3.1=114.1(354)8x+44x+4.8=56.8(355)25x+78x+1.6=125.2(356)4x+76x+3.4=27.4(357)65x+17x+3.7=36.5(358)55x+45x+1.5=131.5(359)48x+14x+4.2=53.8(360)3x+12x+2.4=63.9(361)2.8x+4.3x-2.7=47(362)1.7x+2.6x-3.6=82.4(363)1.1x+6.2x-4.8=104.7(364)9.5x+0.5x-1.1=88.9(365)0.9x+0.2x-4.6=3.1(366)2.1x+1x-2.6=47(367)2.9x+6.9x-2.4=56.4(368)3.1x+1.4x-0.8=48.7(369)4.2x+1.3x-2.7=79.8(370)18x+23x-0.9=15.5(371)65x+29x-4.5=136.5(372)45x+72x-2.6=32.5(373)40x+38x-0.6=85.2(374)55x+83x-0.6=82.2(375)29x+37x-4.8=34.8(376)5x+14x-4=58.7(377)22x+3x-2=63(378)23x+12x-1.8=113.7(379)4.1x-1.2x+1.3=18.7(380)0.8x-0.6x+2.5=21.9(381)7.6x-5.8x+2.1=18.3(382)4.1x-1.5x+2.9=15.9(383)3.3x-3x+3.5=7.7(384)7.9x-4.8x+0.5=31.5(385)9.6x-6.2x+0.9=7.7(386)3.7x-2.4x+1=6.2(387)9x-2.2x+1.1=69.1(388)58x-12x+4.9=14.1(389)73x-5x+3.3=84.9(390)65x-51x+2.8=11.2(391)30x-4x+0.6=76(392)38x-19x+1.7=41.6(393)95x-79x+2.7=9.1(394)70x-57x+0.8=3.4(395)31x-22x+0.2=2(396)90x-5x+3.1=37.1(397)1.3x-0.8x-2.8=13.7(398)2.4x-1x-1.2=54.8(399)9.1x-6.5x-0.5=9.9(400)1.2x-0.2x-1.3=24.7(401)9.8x-6x-2.8=8.6(402)3.7x-1.2x-1.1=53.9(403)1.6x-0.8x-3.1=38.5(404)8x-1.5x-2.8=42.7(405)2.4x-0.3x-3.8=25.6(406)18x-16x-0.3=7.9(407)17x-13x-3.8=11.8(408)83x-16x-2.2=44.7(409)91x-18x-2.2=70.8(410)86x-25x-4.4=38.3(411)34x-15x-1=18(412)92x-25x-1.6=65.4(413)44x-25x-4.4=20.3(414)65x-45x-2.1=25.9(415)2x+3×64=380(416)21x+8×20=349(417)3x+86×2=232(418)27x+5×36=369(419)14x+2×85=240(420)7x+6×32=332(421)3x+2×95=253(422)22x+79×2=356(423)2x+7×19=265(424)14x-28×2=42(425)16x-10×7=26(426)3x-6×9=15(427)2x-2×21=126(428)13x-4×3=40(429)10x-6×4=66(430)3x-39×3=18(431)9x-5×14=29(432)7x-5×17=20(433)0.9x+2.4×7=29.4(434)0.5x+0.9×15=17.5(435)0.2x+2.3×5=18.1(436)0.6x+0.8×18=27(437)3.4x+0.2×19=14(438)0.3x+3.4×2=8.3(439)1.1x+1×15=33.7(440)0.2x+0.4×33=16.2(441)0.2x+0.3×46=23.4(442)10x+12×1.3=30.6(443)4x+9×1.2=19.6(444)3x+15×0.8=23.1(445)31x+3×2.8=17.7(446)6x+6×1.2=14.4(447)9x+8×1.2=14.1(448)12x+40×0.5=22.4(449)8x+4×3.3=23.6(450)13x+3×1.5=16.2(451)4.8x-0.4×8=16(452)2.5x-0.6×4=10.1(453)0.2x-0.4×14=2.2(454)2.3x-0.2×12=11.4(455)2.2x-0.2×34=4.2(456)2.6x-2.5×4=8.2(457)0.5x-1.7×2=10.1(458)0.2x-0.9×2=7(459)0.2x-0.7×2=7(460)35x-9×0.6=8.6(461)6x-4×1.5=11.4(462)31x-2×3.8=1.7(463)5x-2×0.4=17.2(464)6x-13×0.2=9.4(465)8x-3×2.7=5.5(466)27x-33×0.2=1.5(467)31x-2×2.7=10.1(468)4x-3×2=2(469)5(4x+18)=170(470)8(2x+8)=128(471)2(21x+10)=146(472)2(22x+4)=184(473)2(24x+10)=116(474)8(x+4)=64(475)3(x+3)=51(476)2(2x+10)=148(477)3(x+22)=174(478)8(16x-37)=88(479)2(18x-38)=32(480)4(24x-43)=116(481)9(x-8)=153(482)4(27x-40)=56(483)3(4x-40)=132(484)9(13x-22)=153(485)14(2x-22)=168(486)11(x-37)=132(487)2(4.3x+8.7)=43.2(488)3(x+6.1)=48.3(489)2(0.8x+1.5)=6.2(490)2(4.7x+3.7)=35.6(491)2(x+4.8)=35.6(492)2(0.5x+6.2)=27.4(493)25(0.2x+1)=35(494)2(0.3x+5.7)=38.4(495)2(3.2x+3)=25.2(496)2(1.5x-8)=29(497)6(0.3x-5)=25.8(498)4(0.7x-5.3)=20.8(499)3(0.6x-6.4)=11.4(500)14(0.3x-3.2)=14(501)4(1.4x-0.5)=37.2(502)3(2.4x-5.5)=33.9(503)3(0.4x-9)=16.2(504)10(0.4x-4.9)=11(505)(x+48)÷15=5(506)(15x+48)÷4=27(507)(5x+15)÷5=15(508)(14x+35)÷3=35(509)(x+42)÷30=2(510)(4x+8)÷3=20(511)(9x+12)÷2=69(512)(x+28)÷4=9(513)(17x+10)÷2=141(514)(2x-6)÷6=5(515)(5x-5)÷6=20(516)(3x-29)÷2=8(517)(10x-17)÷11=3(518)(19x-45)÷17=13(519)(16x-48)÷5=32(520)(16x-43)÷3=39(521)(10x-5)÷5=31(522)(13x-41)÷2=77(523)(5.2x+2.4)÷25=2.8(524)(0.5x+4.6)÷7=1.3(525)(6.2x+8.7)÷17=2.7(526)(8.2x+4)÷12=5.8(527)(1.4x+3.5)÷7=3.9(528)(9.4x+3.6)÷4=5.6(529)(x+7.8)÷26=0.8(530)(8x+9.4)÷14=4.1(531)(2.4x+2.8)÷4=7.9(532)(1.2x-0.7)÷23=0.7(533)(4.5x-3.6)÷4=8.1(534)(4.2x-9.3)÷15=0.5(535)(4.8x-2.9)÷5=7.1(536)(8x-3.4)÷18=0.7(537)(8.5x-5.6)÷7=7.7(538)(1.2x-3)÷2=6.3(539)(1.9x-6)÷3=7.5(540)(5.2x-2.4)÷12=1.1参考答案(1)x=62(2)x=48(3)x=16(4)x=56(5)x=27(6)x=75(7)x=49(8)x=65(9)x=81(10)x=51(11)x=74(12)x=21(13)x=46(14)x=94(15)x=78(16)x=68(17)x=69(18)x=83(19)x=8.7(20)x=6.8(21)x=7.1(22)x=4.6(23)x=8.6(24)x=7.1(25)x=9.2(26)x=4.9(27)x=8.8(28)x=9.5(29)x=3.7(30)x=3.8(31)x=5(32)x=6.5(33)x=7(34)x=7.9(35)x=1.6(36)x=5.4(37)x=91(38)x=29(39)x=63(40)x=59(41)x=79(42)x=61(43)x=18(44)x=18(45)x=12(46)x=52(47)x=19(48)x=53(49)x=2(50)x=39(51)x=37(52)x=45(53)x=44(54)x=51(55)x=6.7(56)x=7.3(57)x=6.8(58)x=8.4(59)x=2.8(60)x=5.6(61)x=8.8(62)x=6.1(63)x=0.9(64)x=2.2(65)x=1.3(66)x=3.8(67)x=5.6(68)x=3.8(69)x=0.4(70)x=4.8(71)x=2.6(72)x=3.1(73)x=28(74)x=7(75)x=5(76)x=18(77)x=30(78)x=48(79)x=2(80)x=93(81)x=90(82)x=8(83)x=24(84)x=32(85)x=6(86)x=21(87)x=5(88)x=71(89)x=2(90)x=2(91)x=1.2(92)x=1.2(93)x=2.4(94)x=3.3(95)x=2.4(96)x=0.4(97)x=1.5(98)x=0.5(99)x=1.5(100)x=7(101)x=2(102)x=24(103)x=23(104)x=3(105)x=17(106)x=9(107)x=6(108)x=11(109)x=14(110)x=17(111)x=22(112)x=35(113)x=5(114)x=6(115)x=36(116)x=4(117)x=9(118)x=102(119)x=105(120)x=105(121)x=147(122)x=135(123)x=152(124)x=138(125)x=144(126)x=156(127)x=14.4(128)x=7.7(129)x=18(130)x=19.8(131)x=19(132)x=4(133)x=9.8(134)x=19.2(135)x=19.6(136)x=10(137)x=2(138)x=2(139)x=54(140)x=2(141)x=48(142)x=28(143)x=52(144)x=10(145)x=11(146)x=5(147)x=42(148)x=31(149)x=2(150)x=5(151)x=4(152)x=17(153)x=15(154)x=0.5(155)x=1.8(156)x=0.7(157)x=0.9(158)x=1.7(159)x=1.4(160)x=0.5(161)x=0.5(162)x=2.6(163)x=18(164)x=3(165)x=18(166)x=12(167)x=45(168)x=40(169)x=14(170)x=14(171)x=7(172)x=0.6(173)x=2(174)x=2.5(175)x=0.4(176)x=0.2(177)x=1.4(178)x=1.1(179)x=0.4(180)x=0.4(181)x=3(182)x=75(183)x=8(184)x=39(185)x=5(186)x=2(187)x=10(188)x=32(189)x=12(190)x=3(191)x=3(192)x=24(193)x=2(194)x=86(195)x=2(196)x=2(197)x=2(198)x=29(199)x=12(200)x=12(201)x=4(202)x=9(203)x=36(204)x=2(205)x=6(206)x=2(207)x=21(208)x=3(209)x=4(210)x=3(211)x=4(212)x=2(213)x=6(214)x=2(215)x=3(216)x=3(217)x=0.5(218)x=2(219)x=1.3(220)x=0.4(221)x=3(222)x=0.3(223)x=5(224)x=0.3(225)x=0.8(226)x=7(227)x=3(228)x=7(229)x=4(230)x=2(231)x=3(232)x=6(233)x=2(234)x=12(235)x=0.9(236)x=0.2(237)x=0.2(238)x=0.5(239)x=0.3(240)x=4(241)x=6.9(242)x=5.9(243)x=0.8(244)x=2(245)x=32(246)x=6(247)x=28(248)x=2(249)x=12(250)x=10(251)x=2(252)x=9(253)x=10(254)x=3(255)x=4(256)x=4(257)x=40(258)x=9(259)x=15(260)x=15(261)x=10(262)x=0.4(263)x=6.3(264)x=0.3(265)x=1.8(266)x=0.3(267)x=2.4(268)x=0.5(269)x=1(270)x=5.4(271)x=4(272)x=4(273)x=42(274)x=5(275)x=7(276)x=10(277)x=9(278)x=8(279)x=18(280)x=20(281)x=7(282)x=11(283)x=7(284)x=13(285)x=18(286)x=11(287)x=5(288)x=11(289)x=21(290)x=25(291)x=9(292)x=2(293)x=58(294)x=16(295)x=4(296)x=9(297)x=46(298)x=39(299)x=16(300)x=6(301)x=17(302)x=15(303)x=5(304)x=12(305)x=40(306)x=35(307)x=12(308)x=19(309)x=5(310)x=11(311)x=15(312)x=11(313)x=8(314)x=20(315)x=6(316)x=13(317)x=11(318)x=2(319)x=27(320)x=9(321)x=19(322)x=11(323)x=7(324)x=11(325)x=9(326)x=17(327)x=10(328)x=13(329)x=7(330)x=11(331)x=7(332)x=9(333)x=15(334)x=7(335)x=11(336)x=6(337)x=4(338)x=9(339)x=15(340)x=33(341)x=9(342)x=15(343)x=8(344)x=4(345)x=99(346)x=15(347)x=2(348)x=13(349)x=5(350)x=4(351)x=8(352)x=2.3(353)x=1.5(354)x=1(355)x=1.2(356)x=0.3(357)x=0.4(358)x=1.3(359)x=0.8(360)x=4.1(361)x=7(362)x=20(363)x=15(364)x=9(365)x=7(366)x=16(367)x=6(368)x=11(369)x=15(370)x=0.4(371)x=1.5(372)x=0.3(373)x=1.1(374)x=0.6(375)x=0.6(376)x=3.3(377)x=2.6(378)x=3.3(379)x=6(380)x=97(381)x=9(382)x=5(383)x=14(384)x=10(385)x=2(386)x=4(387)x=10(388)x=0.2(389)x=1.2(390)x=0.6(391)x=2.9(392)