五年級數(shù)學(方程)專項練習題及答案

五年級數(shù)學(方程)專項練習題及答案(1)x+71=73(2)x+83=86(3)x+40=128(4)x+51=57(5)x+64=84(6)x+86=138(7)x+89=141(8)x+53=71(9)x+12=31(10)x-30=27(11)x-36=48(12)x-14=82(13)x-51=32(14)x-7=43(15)x-41=29(16)x-25=48(17)x-46=25(18)x-74=16(19)x+3.9=8.8(20)x+8.3=12.3(21)x+1.8=6.6(22)x+3.9=7(23)x+2.4=12.2(24)x+9.6=10.3(25)x+9.8=10.9(26)x+6.7=15.2(27)x+3.3=5.6(28)x-3.1=4.3(29)x-0.4=6.9(30)x-6.8=2.7(31)x-0.8=2(32)x-1.3=7.9(33)x-1.7=4.9(34)x-2.5=6.5(35)x-4=1.3(36)x-0.4=3.9(37)73+x=128(38)35+x=120(39)3+x=91(40)18+x=41(41)13+x=107(42)81+x=171(43)30+x=120(44)47+x=72(45)49+x=67(46)83-x=27(47)94-x=87(48)80-x=68(49)97-x=79(50)66-x=61(51)63-x=17(52)91-x=53(53)97-x=50(54)67-x=29(55)2+x=5(56)9.4+x=10(57)8.6+x=14.2(58)0.2+x=2.9(59)9.9+x=13.9(60)8.2+x=13.8(61)7.4+x=12.3(62)1.4+x=4.1(63)0.7+x=4.1(64)7.8-x=7.4(65)9.3-x=2.7(66)9.4-x=3.8(67)5.2-x=1(68)7.3-x=6.5(69)7.5-x=1.6(70)9.2-x=6.1(71)9.4-x=1.8(72)7.8-x=2.1(73)47x=141(74)20x=60(75)20x=140(76)33x=99(77)17x=170(78)2x=8(79)83x=166(80)8x=72(81)15x=30(82)2.3x=4.6(83)3.7x=14.8(84)1.3x=14.3(85)3.1x=12.4(86)0.8x=16(87)0.4x=13.6(88)2.4x=12(89)0.8x=3.2(90)2.2x=17.6(91)6x=11.4(92)2x=14.8(93)94x=18.8(94)5x=18.5(95)8x=4(96)3x=11.4(97)2x=9.8(98)9x=12.6(99)2x=13(100)40÷x=10(101)175÷x=7(102)44÷x=4(103)10÷x=5(104)168÷x=4(105)70÷x=2(106)160÷x=32(107)190÷x=38(108)120÷x=40(109)12.2÷x=0.2(110)11.9÷x=1.7(111)12÷x=1.5(112)17.2÷x=0.2(113)11.2÷x=0.7(114)11.1÷x=0.3(115)8.4÷x=4.2(116)4.4÷x=0.2(117)5÷x=0.5(118)x÷10=4(119)x÷8=19(120)x÷21=8(121)x÷19=9(122)x÷4=7(123)x÷2=12(124)x÷23=8(125)x÷8=18(126)x÷31=5(127)x÷4=0.7(128)x÷40=0.3(129)x÷2=3.5(130)x÷4=3.3(131)x÷6=0.3(132)x÷73=0.2(133)x÷49=0.3(134)x÷71=0.2(135)x÷2=2.2(136)84x+55=223(137)28x+31=171(138)30x+10=160(139)8x+45=93(140)2x+41=181(141)7x+55=132(142)3x+23=80(143)8x+37=61(144)6x+54=174(145)16x-34=30(146)38x-51=63(147)20x-37=143(148)17x-27=24(149)22x-22=22(150)9x-35=154(151)22x-57=53(152)21x-33=30(153)5x-53=87(154)2x+2.3=14.7(155)4x+3.1=13.1(156)4x+5.9=16.3(157)45x+2.9=20.9(158)4x+3=20.6(159)5x+5.4=24.4(160)46x+2.3=11.5(161)39x+5.6=13.4(162)17x+1.8=13.7(163)2.4x+3.2=10.4(164)0.2x+2.9=22.3(165)0.3x+2.8=6.7(166)2.8x+2.3=21.9(167)0.7x+4.7=21.5(168)1x+3.4=17.4(169)6.6x+5.9=19.1(170)0.4x+2.4=18.8(171)5.9x+1.1=18.8(172)8x-5.3=13.1(173)10x-4.4=14.6(174)15x-3.7=12.8(175)12x-3.2=13.6(176)6x-4.7=5.5(177)12x-3.5=12.1(178)2x-1.9=8.9(179)2x-3.3=1.7(180)12x-2.4=9.6(181)9.6x-1.2=18(182)0.7x-3.8=5.3(183)3.1x-2.5=3.7(184)1x-5.5=12.5(185)0.4x-5.2=14.8(186)1.3x-5.9=13.6(187)0.6x-2.3=12.1(188)8.1x-1.3=14.9(189)0.2x-1.6=1.4(190)74+6x=92(191)127+11x=314(192)69+25x=269(193)164+63x=353(194)188+4x=216(195)142+3x=172(196)75+5x=225(197)54+3x=207(198)113+14x=281(199)174-39x=57(200)172-16x=28(201)197-72x=53(202)102-31x=40(203)191-3x=56(204)179-11x=91(205)72-5x=62(206)155-43x=26(207)119-2x=63(208)7.6+0.4x=25.6(209)19.4+0.3x=25.4(210)2.6+0.2x=5.8(211)10.3+1.6x=24.7(212)10.4+0.6x=13.4(213)5.3+0.3x=23.3(214)18.8+1x=32.8(215)16+1.5x=23.5(216)1.8+1.9x=15.1(217)15.4+7x=34.3(218)13.7+11x=19.2(219)18.7+23x=34.8(220)1.3+6x=10.9(221)6.8+2x=11.8(222)8.7+10x=24.7(223)2.3+9x=15.8(224)12.2+20x=32.2(225)17.1+4x=18.3(226)5-0.3x=4.1(227)5.5-0.2x=5.1(228)15.2-0.4x=8(229)15.3-1x=12.3(230)9.4-0.6x=1(231)19.8-0.2x=13.4(232)15.5-4.6x=6.3(233)13.3-1.1x=7.8(234)14.8-0.9x=4.9(235)4.3-7x=2.9(236)10.5-12x=4.5(237)18.9-24x=14.1(238)15.4-6x=2.2(239)13.4-3x=7.4(240)18.3-68x=4.7(241)19.4-2x=18(242)13.8-5x=11.8(243)10.1-7x=3.1(244)2x÷7=22(245)3x÷7=15(246)3x÷11=9(247)4x÷78=2(248)38x÷19=10(249)9x÷4=45(250)2x÷6=24(251)6x÷5=24(252)5x÷65=3(253)6x÷3=4(254)1.3x÷91=0.2(255)0.4x÷48=0.3(256)5.5x÷5=2.2(257)2x÷5=1.6(258)6x÷6=3(259)3.8x÷6=1.9(260)3.3x÷22=0.9(261)4.2x÷28=0.3(262)2x÷14=0.6(263)9x÷90=0.2(264)2x÷7=2(265)8x÷2=2.4(266)2x÷6=1.9(267)96x÷16=1.2(268)16x÷24=0.6(269)6x÷2=2.1(270)54x÷27=0.4(271)4x+10x=210(272)5x+9x=294(273)4x+12x=128(274)18x+12x=120(275)6x+15x=63(276)4x+3x=147(277)2x+4x=180(278)2x+13x=60(279)10x+5x=105(280)11x-4x=49(281)11x-6x=80(282)6x-3x=69(283)9x-7x=22(284)10x-3x=56(285)9x-3x=60(286)14x-8x=72(287)17x-5x=84(288)16x-12x=24(289)5.4x+6.5x=119(290)0.4x+4.1x=90(291)7.4x+3.6x=121(292)2.5x+0.6x=34.1(293)0.5x+0.6x=73.7(294)0.2x+0.8x=14(295)4.6x+8.7x=39.9(296)3.4x+5.2x=129(297)2.4x+4.8x=144(298)6.7x-5.7x=13(299)2.9x-1.6x=32.5(300)1.4x-0.6x=7.2(301)4.2x-2.5x=15.3(302)2.2x-1.8x=3.6(303)3.3x-2.5x=9.6(304)9x-1.8x=36(305)5.9x-1.9x=24(306)2.7x-2x=17.5(307)11x+7x+38=128(308)11x+19x+25=145(309)5x+6x+36=344(310)16x+18x+3=275(311)13x+7x+28=68(312)13x+6x+7=45(313)12x+11x+14=129(314)3x+6x+27=297(315)16x+3x+8=217(316)13x+18x-6=242(317)10x+7x-4=251(318)17x+14x-16=263(319)2x+5x-16=117(320)10x+2x-32=124(321)4x+7x-27=105(322)6x+17x-36=33(323)4x+3x-28=231(324)12x+3x-18=72(325)5x-3x+25=51(326)6x-3x+40=133(327)19x-9x+15=55(328)14x-10x+29=57(329)14x-2x+21=69(330)19x-4x+45=90(331)14x-6x+26=130(332)8x-4x+38=106(333)8x-4x+23=43(334)8x-3x-48=47(335)7x-3x-19=17(336)10x-4x-6=12(337)15x-7x-43=53(338)14x-8x-44=34(339)16x-12x-4=28(340)8x-2x-4=86(341)12x-2x-14=136(342)6x-2x-8=28(343)8.6x+1.9x+4=109(344)5.9x+4.2x+0.9=132.2(345)6.1x+6x+1.9=135(346)5.9x+0.7x+2.1=28.5(347)1x+4.5x+3.1=102.1(348)8.8x+3x+4=51.2(349)3x+3.1x+4.2=40.8(350)8.5x+0.3x+2.1=72.5(351)2.1x+0.6x+3.6=63(352)67x+83x+4.4=184.4(353)60x+28x+1.8=89.8(354)20x+14x+4.6=130.4(355)14x+35x+0.3=103.2(356)41x+14x+4.2=97.7(357)45x+58x+0.8=93.5(358)35x+30x+4.5=154(359)72x+66x+4=59.2(360)65x+20x+0.3=25.8(361)3x+0.2x-1.8=100.6(362)4.3x+2.1x-1.5=107.3(363)3x+7x-3.8=26.2(364)2.1x+2.9x-4.1=30.9(365)9.4x+7.8x-1=33.4(366)3x+1.5x-2.7=73.8(367)5.9x+1.5x-1.2=28.4(368)3.4x+9.7x-1.8=24.4(369)0.9x+2.2x-4.4=119.6(370)44x+41x-1.1=185.9(371)53x+8x-3=21.4(372)83x+77x-2=158(373)18x+44x-0.9=79.7(374)54x+22x-1.4=127.8(375)23x+81x-2.1=49.9(376)32x+58x-1.5=43.5(377)86x+96x-2=34.4(378)38x+30x-1.7=161.5(379)0.9x-0.2x+3.9=6(380)2.7x-0.8x+0.4=49.8(381)5.4x-3.1x+0.8=30.7(382)6.9x-6.6x+0.8=3.8(383)6.4x-3.2x+4.3=39.5(384)9.2x-8.7x+0.6=2.6(385)2.8x-0.2x+1.1=86.9(386)1.6x-0.2x+0.7=10.5(387)5.6x-4.9x+2.6=5.4(388)63x-13x+1.6=16.6(389)47x-34x+1.2=3.8(390)65x-43x+0.4=26.8(391)16x-13x+1.4=16.1(392)96x-35x+4.5=35(393)22x-18x+4.6=19.4(394)51x-42x+1.8=14.4(395)9x-2x+3.5=19.6(396)35x-8x+0.7=70.9(397)5x-1.8x-0.5=12.3(398)6.6x-5.6x-0.3=13.7(399)3.4x-3.2x-1.6=3.6(400)8.7x-2.7x-1.1=22.9(401)4.3x-2.6x-4.1=1(402)1x-0.8x-3.8=11.8(403)5.4x-4.2x-4.2=11.4(404)3.2x-1x-1.5=29.3(405)2.6x-2.4x-1=4.4(406)55x-49x-3.1=7.7(407)54x-32x-0.5=6.1(408)87x-26x-1.6=16.7(409)40x-33x-0.7=16.1(410)32x-5x-4.3=6.5(411)63x-8x-3.9=73.1(412)84x-37x-2.3=16.5(413)81x-61x-1.5=8.5(414)35x-20x-3.5=1(415)8x+24×8=376(416)3x+65×2=157(417)13x+19×8=217(418)3x+10×18=297(419)5x+14×11=239(420)7x+2×53=204(421)4x+16×9=236(422)3x+20×8=187(423)3x+24×3=120(424)25x-65×2=70(425)2x-42×3=34(426)18x-38×4=46(427)3x-2×11=17(428)7x-4×11=68(429)2x-15×5=81(430)4x-11×6=74(431)13x-2×72=51(432)7x-27×2=44(433)0.5x+3.9×3=26.7(434)0.5x+3.4×2=12.3(435)0.3x+1.4×3=6(436)1.3x+2.8×2=21.2(437)1.2x+1.2×8=13.2(438)0.9x+0.5×2=11.8(439)0.3x+0.7×4=5.2(440)3.3x+3.8×2=27.4(441)1.3x+3×4=27.6(442)29x+12×0.7=25.8(443)18x+35×0.5=37.3(444)19x+9×1.7=24.8(445)2x+5×0.9=7.3(446)32x+5×2.6=22.6(447)12x+6×2.3=21(448)4x+2×0.4=1.6(449)7x+5×3.9=38.4(450)4x+8×0.5=22(451)2.3x-2×6=6.4(452)0.6x-0.3×6=3.6(453)0.6x-1.9×6=1.2(454)4.5x-1×12=6(455)0.8x-4.5×2=7(456)1.4x-3.1×4=4.4(457)0.9x-0.9×2=14.4(458)0.9x-1.1×9=8.1(459)0.6x-0.4×10=11.6(460)2x-8×0.7=4.2(461)40x-18×0.5=11(462)29x-2×2.3=1.2(463)10x-8×1.6=2.2(464)11x-32×0.4=7(465)7x-20×0.2=3(466)32x-3×1.1=12.7(467)8x-10×1.3=3(468)34x-3×2.3=10.1(469)7(x+4)=91(470)5(4x+4)=100(471)2(4x+34)=156(472)2(3x+6)=30(473)2(3x+33)=90(474)8(x+10)=160(475)2(2x+17)=174(476)10(x+3)=180(477)4(2x+10)=64(478)10(6x-7)=110(479)6(10x-24)=156(480)4(x-6)=80(481)5(2x-22)=180(482)15(20x-27)=195(483)3(2x-7)=135(484)2(12x-49)=22(485)8(x-14)=192(486)4(x-12)=92(487)4(2.4x+7.3)=48.4(488)2(0.4x+6.8)=46.4(489)2(0.6x+2.1)=28.2(490)4(0.2x+2.1)=16.4(491)2(0.5x+4.3)=14.6(492)7(1.2x+0.3)=44.1(493)2(2.9x+4.5)=20.6(494)3(0.3x+7.6)=25.5(495)3(2.4x+0.5)=44.7(496)5(2.9x-8.6)=15(497)8(0.9x-4)=18.4(498)10(2.3x-2.6)=20(499)11(4.2x-5.2)=35.2(500)4(3.3x-8.5)=5.6(501)2(1.7x-3.3)=37.6(502)4(0.5x-8.4)=48.4(503)2(0.3x-0.5)=25.4(504)16(x-7.4)=25.6(505)(x+34)÷5=12(506)(9x+42)÷6=40(507)(x+26)÷2=16(508)(15x+6)÷48=2(509)(2x+10)÷32=2(510)(5x+17)÷7=6(511)(5x+40)÷2=85(512)(10x+10)÷2=90(513)(4x+22)÷18=7(514)(18x-6)÷2=60(515)(19x-49)÷46=1(516)(8x-34)÷3=42(517)(15x-42)÷26=3(518)(6x-2)÷23=2(519)(8x-28)÷46=2(520)(6x-24)÷3=26(521)(15x-35)÷5=11(522)(14x-34)÷2=32(523)(3.2x+0.6)÷2=27.5(524)(6.9x+6.1)÷16=3.4(525)(5.3x+0.5)÷25=3.2(526)(5.6x+4.9)÷29=2.1(527)(6.7x+4)÷4=14.4(528)(0.8x+7.2)÷2=10.4(529)(3.2x+8.8)÷2=9.2(530)(1.8x+6.3)÷31=0.9(531)(2.7x+8.7)÷25=2.4(532)(2x-2.9)÷3=11.7(533)(4.5x-7.6)÷8=5.8(534)(8.1x-3.7)÷5=18.7(535)(3.4x-9)÷10=4.2(536)(2.4x-3)÷14=1.5(537)(3.2x-2.2)÷2=6.9(538)(5x-0.2)÷2=32.4(539)(6.1x-4.5)÷4=6.5(540)(5x-6.2)÷6=2.3參考答案(1)x=2(2)x=3(3)x=88(4)x=6(5)x=20(6)x=52(7)x=52(8)x=18(9)x=19(10)x=57(11)x=84(12)x=96(13)x=83(14)x=50(15)x=70(16)x=73(17)x=71(18)x=90(19)x=4.9(20)x=4(21)x=4.8(22)x=3.1(23)x=9.8(24)x=0.7(25)x=1.1(26)x=8.5(27)x=2.3(28)x=7.4(29)x=7.3(30)x=9.5(31)x=2.8(32)x=9.2(33)x=6.6(34)x=9(35)x=5.3(36)x=4.3(37)x=55(38)x=85(39)x=88(40)x=23(41)x=94(42)x=90(43)x=90(44)x=25(45)x=18(46)x=56(47)x=7(48)x=12(49)x=18(50)x=5(51)x=46(52)x=38(53)x=47(54)x=38(55)x=3(56)x=0.6(57)x=5.6(58)x=2.7(59)x=4(60)x=5.6(61)x=4.9(62)x=2.7(63)x=3.4(64)x=0.4(65)x=6.6(66)x=5.6(67)x=4.2(68)x=0.8(69)x=5.9(70)x=3.1(71)x=7.6(72)x=5.7(73)x=3(74)x=3(75)x=7(76)x=3(77)x=10(78)x=4(79)x=2(80)x=9(81)x=2(82)x=2(83)x=4(84)x=11(85)x=4(86)x=20(87)x=34(88)x=5(89)x=4(90)x=8(91)x=1.9(92)x=7.4(93)x=0.2(94)x=3.7(95)x=0.5(96)x=3.8(97)x=4.9(98)x=1.4(99)x=6.5(100)x=4(101)x=25(102)x=11(103)x=2(104)x=42(105)x=35(106)x=5(107)x=5(108)x=3(109)x=61(110)x=7(111)x=8(112)x=86(113)x=16(114)x=37(115)x=2(116)x=22(117)x=10(118)x=40(119)x=152(120)x=168(121)x=171(122)x=28(123)x=24(124)x=184(125)x=144(126)x=155(127)x=2.8(128)x=12(129)x=7(130)x=13.2(131)x=1.8(132)x=14.6(133)x=14.7(134)x=14.2(135)x=4.4(136)x=2(137)x=5(138)x=5(139)x=6(140)x=70(141)x=11(142)x=19(143)x=3(144)x=20(145)x=4(146)x=3(147)x=9(148)x=3(149)x=2(150)x=21(151)x=5(152)x=3(153)x=28(154)x=6.2(155)x=2.5(156)x=2.6(157)x=0.4(158)x=4.4(159)x=3.8(160)x=0.2(161)x=0.2(162)x=0.7(163)x=3(164)x=97(165)x=13(166)x=7(167)x=24(168)x=14(169)x=2(170)x=41(171)x=3(172)x=2.3(173)x=1.9(174)x=1.1(175)x=1.4(176)x=1.7(177)x=1.3(178)x=5.4(179)x=2.5(180)x=1(181)x=2(182)x=13(183)x=2(184)x=18(185)x=50(186)x=15(187)x=24(188)x=2(189)x=15(190)x=3(191)x=17(192)x=8(193)x=3(194)x=7(195)x=10(196)x=30(197)x=51(198)x=12(199)x=3(200)x=9(201)x=2(202)x=2(203)x=45(204)x=8(205)x=2(206)x=3(207)x=28(208)x=45(209)x=20(210)x=16(211)x=9(212)x=5(213)x=60(214)x=14(215)x=5(216)x=7(217)x=2.7(218)x=0.5(219)x=0.7(220)x=1.6(221)x=2.5(222)x=1.6(223)x=1.5(224)x=1(225)x=0.3(226)x=3(227)x=2(228)x=18(229)x=3(230)x=14(231)x=32(232)x=2(233)x=5(234)x=11(235)x=0.2(236)x=0.5(237)x=0.2(238)x=2.2(239)x=2(240)x=0.2(241)x=0.7(242)x=0.4(243)x=1(244)x=77(245)x=35(246)x=33(247)x=39(248)x=5(249)x=20(250)x=72(251)x=20(252)x=39(253)x=2(254)x=14(255)x=36(256)x=2(257)x=4(258)x=3(259)x=3(260)x=6(261)x=2(262)x=4.2(263)x=2(264)x=7(265)x=0.6(266)x=5.7(267)x=0.2(268)x=0.9(269)x=0.7(270)x=0.2(271)x=15(272)x=21(273)x=8(274)x=4(275)x=3(276)x=21(277)x=30(278)x=4(279)x=7(280)x=7(281)x=16(282)x=23(283)x=11(284)x=8(285)x=10(286)x=12(287)x=7(288)x=6(289)x=10(290)x=20(291)x=11(292)x=11(293)x=67(294)x=14(295)x=3(296)x=15(297)x=20(298)x=13(299)x=25(300)x=9(301)x=9(302)x=9(303)x=12(304)x=5(305)x=6(306)x=25(307)x=5(308)x=4(309)x=28(310)x=8(311)x=2(312)x=2(313)x=5(314)x=30(315)x=11(316)x=8(317)x=15(318)x=9(319)x=19(320)x=13(321)x=12(322)x=3(323)x=37(324)x=6(325)x=13(326)x=31(327)x=4(328)x=7(329)x=4(330)x=3(331)x=13(332)x=17(333)x=5(334)x=19(335)x=9(336)x=3(337)x=12(338)x=13(339)x=8(340)x=15(341)x=15(342)x=9(343)x=10(344)x=13(345)x=11(346)x=4(347)x=18(348)x=4(349)x=6(350)x=8(351)x=22(352)x=1.2(353)x=1(354)x=3.7(355)x=2.1(356)x=1.7(357)x=0.9(358)x=2.3(359)x=0.4(360)x=0.3(361)x=32(362)x=17(363)x=3(364)x=7(365)x=2(366)x=17(367)x=4(368)x=2(369)x=40(370)x=2.2(371)x=0.4(372)x=1(373)x=1.3(374)x=1.7(375)x=0.5(376)x=0.5(377)x=0.2(378)x=2.4(379)x=3(380)x=26(381)x=13(382)x=10(383)x=11(384)x=4(385)x=33(386)x=7(387)x=4(388)x=0.3(389)x=0.2(390)x=1.2(391)x=4.9(392)x=0.5(393)