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+43=68(2)x+94=121(3)x+25=32(4)x+92=107(5)x+36=114(6)x+24=109(7)x+65=112(8)x+53=66(9)x+45=117(10)x-49=20(11)x-22=10(12)x-50=46(13)x-44=14(14)x-64=11(15)x-8=74(16)x-25=16(17)x-55=40(18)x-22=61(19)x+2.9=7.4(20)x+0.2=8.8(21)x+9.8=12.5(22)x+0.8=3.6(23)x+7.2=10(24)x+4.4=9.9(25)x+1.6=4.6(26)x+3.4=6.1(27)x+4.5=5.3(28)x-1.9=2.4(29)x-2.5=2.5(30)x-4.1=5.7(31)x-4.2=3.2(32)x-7.1=1.1(33)x-5=3.6(34)x-5.9=1.8(35)x-5.3=1.8(36)x-5.3=3(37)57+x=103(38)83+x=120(39)75+x=108(40)50+x=131(41)38+x=85(42)73+x=143(43)52+x=123(44)27+x=70(45)56+x=100(46)85-x=17(47)81-x=59(48)48-x=19(49)86-x=19(50)91-x=84(51)91-x=16(52)66-x=24(53)61-x=34(54)99-x=63(55)1.1+x=7.3(56)6.8+x=12.6(57)7+x=11.8(58)1.4+x=6.6(59)3.4+x=3.9(60)4+x=10.5(61)4.6+x=10.8(62)7.1+x=12.3(63)3.1+x=8.7(64)8-x=7.8(65)9.1-x=3.1(66)4.1-x=3.1(67)6.4-x=2.5(68)6.6-x=5.7(69)6.6-x=3.9(70)8.9-x=4.9(71)9.7-x=3.8(72)9.8-x=5.1(73)6x=168(74)9x=189(75)8x=168(76)2x=38(77)12x=168(78)25x=150(79)90x=180(80)8x=80(81)16x=80(82)0.7x=10.5(83)0.3x=19.8(84)0.7x=4.2(85)3.2x=12.8(86)0.9x=1.8(87)0.3x=7.8(88)4.2x=12.6(89)0.4x=16(90)1.1x=6.6(91)9x=14.4(92)5x=9(93)2x=8.2(94)13x=18.2(95)4x=20(96)11x=15.4(97)21x=4.2(98)5x=6.5(99)20x=6(100)147÷x=7(101)100÷x=2(102)192÷x=12(103)42÷x=3(104)12÷x=6(105)64÷x=16(106)66÷x=2(107)124÷x=4(108)30÷x=15(109)12.8÷x=1.6(110)11÷x=0.2(111)11.2÷x=0.7(112)9÷x=0.3(113)17.6÷x=0.4(114)2.8÷x=0.7(115)5.6÷x=0.8(116)9.6÷x=0.3(117)8÷x=1.6(118)x÷32=6(119)x÷4=41(120)x÷13=4(121)x÷5=36(122)x÷5=18(123)x÷8=8(124)x÷5=27(125)x÷4=12(126)x÷16=5(127)x÷3=3.7(128)x÷29=0.5(129)x÷2=1.8(130)x÷2=2.8(131)x÷4=1.3(132)x÷90=0.2(133)x÷16=0.5(134)x÷37=0.5(135)x÷8=1.9(136)6x+51=201(137)11x+42=64(138)3x+55=91(139)3x+28=175(140)3x+48=117(141)21x+11=200(142)18x+54=252(143)2x+34=204(144)8x+36=108(145)25x-39=36(146)9x-23=121(147)35x-58=82(148)5x-26=34(149)26x-27=129(150)26x-10=94(151)4x-51=53(152)2x-18=56(153)22x-27=17(154)3x+4.1=13.1(155)17x+4.8=16.7(156)13x+4.5=17.5(157)8x+5.6=21.6(158)9x+4=17.5(159)7x+4.3=23.2(160)37x+3.8=14.9(161)9x+5=18.5(162)17x+3.2=10(163)1.7x+2=17.3(164)6.6x+5.9=19.1(165)0.7x+3.8=9.4(166)1.7x+5.4=22.4(167)2.4x+2.5=12.1(168)5x+1.1=21.1(169)2.1x+2.5=8.8(170)2x+5.5=9.5(171)0.2x+3.7=10.9(172)3x-3.8=1.3(173)14x-5.5=7.1(174)2x-3.8=11(175)7x-2=12(176)7x-2.1=16.1(177)10x-2.5=2.5(178)4x-5.2=2(179)39x-5.9=5.8(180)12x-1.5=9.3(181)1.4x-5=10.4(182)0.6x-2=11.8(183)0.8x-1=1.4(184)1.1x-2=14.5(185)1.4x-5.9=10.9(186)1.1x-5.4=5.6(187)0.8x-3.7=5.1(188)6.3x-5.8=13.1(189)2.3x-4.4=14(190)15+2x=181(191)47+2x=233(192)56+2x=76(193)78+71x=220(194)87+16x=167(195)86+24x=254(196)41+7x=62(197)198+10x=278(198)134+33x=299(199)195-17x=161(200)131-7x=68(201)158-4x=102(202)185-5x=150(203)155-55x=45(204)58-9x=13(205)184-6x=28(206)153-9x=126(207)77-2x=23(208)13.1+0.2x=13.5(209)8.9+1.6x=21.7(210)16.8+0.4x=23.2(211)9+1.5x=16.5(212)13.3+1.5x=17.8(213)19.5+0.5x=30.5(214)8.2+0.2x=19.8(215)1.1+1.6x=17.1(216)3.8+8.8x=21.4(217)5.5+4x=24.3(218)9.8+28x=26.6(219)13.6+5x=33.6(220)2.7+85x=19.7(221)10.4+22x=23.6(222)9+2x=24.6(223)5.6+4x=10.8(224)17.1+7x=18.5(225)1.6+28x=15.6(226)14.7-0.2x=12.9(227)14.2-0.2x=3.2(228)9.6-0.4x=4(229)12.7-2x=6.7(230)13-0.3x=10.6(231)8.8-1.8x=3.4(232)16.3-0.3x=10.9(233)17.2-0.2x=1.2(234)14.7-1.5x=2.7(235)15.9-55x=4.9(236)6.7-10x=1.7(237)8.6-7x=5.1(238)18.2-4x=11.4(239)6.7-4x=3.1(240)15.9-2x=15.1(241)14.8-2x=5.2(242)13.3-43x=4.7(243)17.9-6x=5.3(244)2x÷8=7(245)9x÷3=18(246)2x÷15=10(247)2x÷58=3(248)7x÷28=6(249)18x÷63=2(250)2x÷14=12(251)5x÷13=15(252)9x÷6=18(253)0.2x÷7=1.8(254)1.4x÷63=0.2(255)1.4x÷12=0.7(256)1.1x÷22=0.8(257)3.2x÷96=0.2(258)2.7x÷54=0.3(259)0.4x÷6=1.2(260)2.9x÷58=0.2(261)0.2x÷36=0.5(262)6x÷2=0.9(263)5x÷19=1(264)2x÷16=0.7(265)3x÷39=0.5(266)12x÷40=0.3(267)84x÷8=2.1(268)3x÷10=1.8(269)3x÷6=0.8(270)54x÷12=0.9(271)9x+19x=84(272)2x+3x=250(273)5x+3x=288(274)16x+15x=279(275)8x+13x=315(276)4x+9x=104(277)8x+4x=156(278)15x+10x=100(279)5x+8x=143(280)18x-13x=55(281)18x-13x=25(282)11x-6x=90(283)9x-4x=30(284)12x-10x=12(285)9x-5x=68(286)12x-10x=32(287)10x-3x=91(288)4x-2x=88(289)2.2x+6.1x=41.5(290)1.4x+1.2x=179.4(291)1.7x+3x=32.9(292)8.2x+3.6x=82.6(293)9.4x+8.8x=182(294)1.7x+2.1x=129.2(295)1.1x+4.1x=119.6(296)0.2x+0.9x=11(297)3.5x+2.9x=153.6(298)9.7x-6.5x=22.4(299)6.7x-2x=14.1(300)2.1x-0.5x=75.2(301)6.5x-3.7x=11.2(302)5.4x-4.5x=7.2(303)8.8x-6.4x=9.6(304)1.9x-1x=45(305)5.7x-5.2x=5(306)9.3x-1x=49.8(307)13x+12x+2=252(308)15x+10x+4=79(309)5x+10x+10=175(310)2x+4x+24=204(311)5x+10x+37=277(312)8x+10x+41=383(313)6x+4x+19=269(314)12x+2x+27=83(315)17x+19x+43=403(316)8x+10x-7=353(317)2x+18x-11=209(318)7x+14x-45=60(319)4x+12x-30=210(320)2x+16x-7=173(321)19x+15x-19=219(322)9x+2x-4=139(323)8x+14x-39=115(324)9x+7x-25=279(325)18x-2x+33=97(326)6x-4x+3=47(327)15x-7x+14=86(328)10x-2x+44=140(329)13x-5x+47=119(330)17x-7x+12=72(331)13x-3x+43=93(332)14x-2x+8=104(333)8x-3x+26=146(334)14x-8x-6=48(335)14x-6x-45=27(336)12x-9x-36=12(337)12x-2x-42=38(338)14x-6x-41=55(339)11x-3x-46=10(340)9x-4x-13=72(341)17x-9x-17=31(342)7x-3x-18=82(343)2x+7x+3.2=48.2(344)4x+9x+2.7=41.7(345)0.5x+1.1x+2.6=114.6(346)2x+0.3x+3.5=35.7(347)2.1x+3.7x+2.1=135.5(348)4.7x+7.5x+1.6=87(349)1.3x+3.8x+0.9=21.3(350)4.1x+8x+2.7=147.9(351)1.1x+3.4x+4.5=81(352)77x+15x+2.2=29.8(353)38x+6x+1=40.6(354)63x+68x+2.9=173.2(355)28x+63x+3.2=57.8(356)90x+19x+4.4=113.4(357)3x+63x+1.9=28.3(358)12x+10x+2.8=22.6(359)9x+75x+2.7=103.5(360)69x+63x+3.3=174.9(361)6.3x+6.7x-0.2=77.8(362)0.8x+5.1x-2.9=8.9(363)0.9x+1x-1.8=49.5(364)1.1x+3.4x-2.4=42.6(365)2x+1.3x-2.9=53.2(366)8.4x+6x-2.3=40.9(367)1.8x+1.4x-0.2=54.2(368)1.9x+3.9x-1.8=96.8(369)4.2x+9.3x-3.1=23.9(370)46x+9x-4.4=61.6(371)14x+27x-1.5=72.3(372)26x+33x-4.9=119(373)31x+86x-4.6=77.3(374)5x+34x-2.6=59.8(375)31x+20x-4.9=71.6(376)16x+33x-0.8=18.8(377)23x+44x-1.1=86(378)83x+89x-2.2=66.6(379)3.1x-1.5x+1.7=17.7(380)7.8x-7.5x+3.5=7.1(381)5.1x-4.9x+0.3=2.9(382)6.8x-4.6x+3.1=31.7(383)3.7x-1.7x+2.2=12.2(384)7.5x-2.1x+2.4=40.2(385)2.2x-1x+1.3=54.1(386)5.6x-0.2x+1.3=49.9(387)2.7x-0.5x+2.6=70.8(388)98x-47x+0.9=31.5(389)53x-47x+2.9=13.7(390)44x-12x+4.4=74.8(391)99x-10x+1.1=54.5(392)21x-11x+1.2=43.2(393)43x-35x+3.3=8.1(394)23x-8x+0.6=9.6(395)98x-88x+2.3=4.3(396)79x-36x+0.4=13.3(397)1x-0.5x-0.3=22.2(398)1.7x-0.8x-2.7=5.4(399)2.1x-1.3x-1.6=32.8(400)7.6x-4x-2=41.2(401)3.4x-0.3x-4.8=41.7(402)2.2x-0.9x-1.1=56.1(403)3.3x-0.9x-4.5=45.9(404)8.6x-3.9x-2.9=20.6(405)7.2x-3.2x-0.2=31.8(406)23x-14x-1.3=36.5(407)98x-8x-3.3=14.7(408)25x-15x-0.8=32.2(409)63x-27x-2.7=11.7(410)70x-50x-1.7=16.3(411)54x-26x-2.9=44.7(412)96x-4x-0.7=72.9(413)86x-39x-0.7=13.4(414)73x-70x-1.8=1.5(415)12x+5×22=194(416)3x+46×2=209(417)24x+35×5=223(418)16x+17×11=379(419)2x+6×20=142(420)3x+40×5=257(421)4x+4×13=92(422)8x+2×76=200(423)2x+56×3=184(424)7x-3×15=32(425)29x-2×62=50(426)11x-2×6=65(427)3x-31×3=42(428)15x-9×10=105(429)3x-2×52=40(430)3x-3×35=33(431)20x-23×3=111(432)4x-11×2=90(433)4.9x+0.8×5=23.6(434)2.3x+1.7×7=18.8(435)1.2x+1.6×12=30(436)0.4x+0.5×39=37.1(437)1.1x+3.6×4=28.7(438)0.3x+0.7×19=17.2(439)2.6x+0.8×6=17.8(440)0.8x+0.8×19=25.6(441)1.4x+0.4×3=9.6(442)4x+43×0.3=20.9(443)3x+5×2.4=17.1(444)28x+15×0.7=16.1(445)14x+40×0.2=23.4(446)6x+2×3.7=21.8(447)10x+4×3.8=21.2(448)4x+7×1.4=24.6(449)8x+3×2.1=22.3(450)2x+4×1.9=12.8(451)0.5x-1.4×3=13.8(452)4.6x-0.4×33=5.2(453)1.3x-0.3×5=18(454)1.4x-0.6×19=1.2(455)2.7x-2.8×5=2.2(456)1x-0.9×5=6.5(457)2.3x-0.3×17=4.1(458)0.4x-0.7×5=14.1(459)1.2x-1.7×4=5.2(460)30x-2×1=13(461)15x-2×1.9=11.2(462)27x-4×1.6=4.4(463)34x-19×0.5=4.1(464)24x-6×1.7=6.6(465)5x-3×4.1=6.7(466)22x-4×2.1=7(467)5x-3×2=10(468)8x-5×2.8=2.8(469)2(x+45)=128(470)8(3x+2)=64(471)2(10x+37)=114(472)3(6x+3)=45(473)2(14x+25)=162(474)2(x+11)=88(475)2(19x+15)=144(476)2(10x+2)=64(477)8(x+13)=120(478)15(2x-11)=165(479)3(4x-43)=135(480)5(4x-16)=180(481)2(21x-42)=168(482)13(2x-30)=182(483)2(3x-43)=106(484)3(5x-3)=186(485)3(10x-8)=126(486)5(4x-12)=160(487)8(0.5x+1.8)=38.4(488)6(1.1x+4.7)=41.4(489)2(2.5x+9.3)=43.6(490)2(0.4x+8.5)=28.2(491)7(0.2x+2.8)=23.8(492)2(1.2x+3)=44.4(493)4(3.5x+1.7)=34.8(494)5(0.7x+1)=36.5(495)6(0.2x+4.8)=38.4(496)9(3.4x-3.9)=26.1(497)11(3.2x-5.9)=40.7(498)4(0.9x-9.7)=4.4(499)9(0.2x-2.3)=17.1(500)10(0.5x-4.5)=20(501)23(2.8x-9.8)=32.2(502)23(1.3x-2.9)=23(503)2(6.8x-9.1)=22.6(504)6(0.8x-5.9)=41.4(505)(6x+24)÷36=5(506)(5x+11)÷3=52(507)(3x+35)÷2=25(508)(13x+21)÷9=24(509)(16x+12)÷3=84(510)(16x+9)÷3=51(511)(18x+26)÷4=56(512)(4x+42)÷25=2(513)(16x+22)÷3=18(514)(3x-8)÷13=4(515)(18x-12)÷2=120(516)(12x-28)÷10=20(517)(7x-9)÷8=19(518)(6x-17)÷19=7(519)(11x-41)÷3=23(520)(17x-23)÷4=58(521)(17x-31)÷7=15(522)(9x-48)÷3=38(523)(1.9x+6.6)÷4=6.4(524)(4x+1.2)÷4=11.3(525)(9.4x+0.8)÷14=1.4(526)(3.1x+4.8)÷32=1.7(527)(4.5x+4.8)÷26=3.3(528)(3.2x+5.7)÷7=3.1(529)(4.4x+7.2)÷21=1.6(530)(8.2x+8.5)÷39=1.9(531)(6.1x+3.9)÷14=4.2(532)(5.2x-6.3)÷5=8.1(533)(5.9x-6.2)÷7=6.7(534)(8.9x-8.4)÷18=2.5(535)(5.2x-6.2)÷2=33.3(536)(2.1x-1.2)÷26=0.6(537)(5.8x-3)÷31=1.4(538)(8.1x-5.5)÷5=7(539)(9.1x-9.4)÷34=2.4(540)(1.8x-5.8)÷10=0.5参考答案(1)x=25(2)x=27(3)x=7(4)x=15(5)x=78(6)x=85(7)x=47(8)x=13(9)x=72(10)x=69(11)x=32(12)x=96(13)x=58(14)x=75(15)x=82(16)x=41(17)x=95(18)x=83(19)x=4.5(20)x=8.6(21)x=2.7(22)x=2.8(23)x=2.8(24)x=5.5(25)x=3(26)x=2.7(27)x=0.8(28)x=4.3(29)x=5(30)x=9.8(31)x=7.4(32)x=8.2(33)x=8.6(34)x=7.7(35)x=7.1(36)x=8.3(37)x=46(38)x=37(39)x=33(40)x=81(41)x=47(42)x=70(43)x=71(44)x=43(45)x=44(46)x=68(47)x=22(48)x=29(49)x=67(50)x=7(51)x=75(52)x=42(53)x=27(54)x=36(55)x=6.2(56)x=5.8(57)x=4.8(58)x=5.2(59)x=0.5(60)x=6.5(61)x=6.2(62)x=5.2(63)x=5.6(64)x=0.2(65)x=6(66)x=1(67)x=3.9(68)x=0.9(69)x=2.7(70)x=4(71)x=5.9(72)x=4.7(73)x=28(74)x=21(75)x=21(76)x=19(77)x=14(78)x=6(79)x=2(80)x=10(81)x=5(82)x=15(83)x=66(84)x=6(85)x=4(86)x=2(87)x=26(88)x=3(89)x=40(90)x=6(91)x=1.6(92)x=1.8(93)x=4.1(94)x=1.4(95)x=5(96)x=1.4(97)x=0.2(98)x=1.3(99)x=0.3(100)x=21(101)x=50(102)x=16(103)x=14(104)x=2(105)x=4(106)x=33(107)x=31(108)x=2(109)x=8(110)x=55(111)x=16(112)x=30(113)x=44(114)x=4(115)x=7(116)x=32(117)x=5(118)x=192(119)x=164(120)x=52(121)x=180(122)x=90(123)x=64(124)x=135(125)x=48(126)x=80(127)x=11.1(128)x=14.5(129)x=3.6(130)x=5.6(131)x=5.2(132)x=18(133)x=8(134)x=18.5(135)x=15.2(136)x=25(137)x=2(138)x=12(139)x=49(140)x=23(141)x=9(142)x=11(143)x=85(144)x=9(145)x=3(146)x=16(147)x=4(148)x=12(149)x=6(150)x=4(151)x=26(152)x=37(153)x=2(154)x=3(155)x=0.7(156)x=1(157)x=2(158)x=1.5(159)x=2.7(160)x=0.3(161)x=1.5(162)x=0.4(163)x=9(164)x=2(165)x=8(166)x=10(167)x=4(168)x=4(169)x=3(170)x=2(171)x=36(172)x=1.7(173)x=0.9(174)x=7.4(175)x=2(176)x=2.6(177)x=0.5(178)x=1.8(179)x=0.3(180)x=0.9(181)x=11(182)x=23(183)x=3(184)x=15(185)x=12(186)x=10(187)x=11(188)x=3(189)x=8(190)x=83(191)x=93(192)x=10(193)x=2(194)x=5(195)x=7(196)x=3(197)x=8(198)x=5(199)x=2(200)x=9(201)x=14(202)x=7(203)x=2(204)x=5(205)x=26(206)x=3(207)x=27(208)x=2(209)x=8(210)x=16(211)x=5(212)x=3(213)x=22(214)x=58(215)x=10(216)x=2(217)x=4.7(218)x=0.6(219)x=4(220)x=0.2(221)x=0.6(222)x=7.8(223)x=1.3(224)x=0.2(225)x=0.5(226)x=9(227)x=55(228)x=14(229)x=3(230)x=8(231)x=3(232)x=18(233)x=80(234)x=8(235)x=0.2(236)x=0.5(237)x=0.5(238)x=1.7(239)x=0.9(240)x=0.4(241)x=4.8(242)x=0.2(243)x=2.1(244)x=28(245)x=6(246)x=75(247)x=87(248)x=24(249)x=7(250)x=84(251)x=39(252)x=12(253)x=63(254)x=9(255)x=6(256)x=16(257)x=6(258)x=6(259)x=18(260)x=4(261)x=90(262)x=0.3(263)x=3.8(264)x=5.6(265)x=6.5(266)x=1(267)x=0.2(268)x=6(269)x=1.6(270)x=0.2(271)x=3(272)x=50(273)x=36(274)x=9(275)x=15(276)x=8(277)x=13(278)x=4(279)x=11(280)x=11(281)x=5(282)x=18(283)x=6(284)x=6(285)x=17(286)x=16(287)x=13(288)x=44(289)x=5(290)x=69(291)x=7(292)x=7(293)x=10(294)x=34(295)x=23(296)x=10(297)x=24(298)x=7(299)x=3(300)x=47(301)x=4(302)x=8(303)x=4(304)x=50(305)x=10(306)x=6(307)x=10(308)x=3(309)x=11(310)x=30(311)x=16(312)x=19(313)x=25(314)x=4(315)x=10(316)x=20(317)x=11(318)x=5(319)x=15(320)x=10(321)x=7(322)x=13(323)x=7(324)x=19(325)x=4(326)x=22(327)x=9(328)x=12(329)x=9(330)x=6(331)x=5(332)x=8(333)x=24(334)x=9(335)x=9(336)x=16(337)x=8(338)x=12(339)x=7(340)x=17(341)x=6(342)x=25(343)x=5(344)x=3(345)x=70(346)x=14(347)x=23(348)x=7(349)x=4(350)x=12(351)x=17(352)x=0.3(353)x=0.9(354)x=1.3(355)x=0.6(356)x=1(357)x=0.4(358)x=0.9(359)x=1.2(360)x=1.3(361)x=6(362)x=2(363)x=27(364)x=10(365)x=17(366)x=3(367)x=17(368)x=17(369)x=2(370)x=1.2(371)x=1.8(372)x=2.1(373)x=0.7(374)x=1.6(375)x=1.5(376)x=0.4(377)x=1.3(378)x=0.4(379)x=10(380)x=12(381)x=13(382)x=13(383)x=5(384)x=7(385)x=44(386)x=9(387)x=31(388)x=0.6(389)x=1.8(390)x=2.2(391)x=0.6(3