五年級數學(方程)專項練習題及答案(1)x+86=162(2)x+60=101(3)x+91=128(4)x+74=147(5)x+45=51(6)x+62=76(7)x+21=78(8)x+77=164(9)x+85=142(10)x-12=78(11)x-63=24(12)x-15=84(13)x-20=72(14)x-30=63(15)x-9=46(16)x-17=21(17)x-9=72(18)x-11=67(19)x+4.8=13.6(20)x+3.2=6.7(21)x+9.6=15.8(22)x+4.7=13(23)x+5=12.9(24)x+1.9=7.4(25)x+3=4(26)x+5.9=14.4(27)x+0.2=9.5(28)x-1.4=5(29)x-0.9=2.6(30)x-3.9=2.6(31)x-6.1=1.5(32)x-3.3=3.2(33)x-1.2=5.5(34)x-3.3=5.8(35)x-0.4=3.2(36)x-0.4=2.6(37)59+x=127(38)31+x=112(39)66+x=84(40)60+x=85(41)29+x=31(42)36+x=63(43)72+x=141(44)53+x=60(45)55+x=72(46)61-x=31(47)91-x=63(48)51-x=25(49)99-x=58(50)86-x=32(51)93-x=58(52)89-x=38(53)98-x=86(54)56-x=17(55)1.7+x=4(56)4+x=4.9(57)1+x=2.3(58)7.2+x=14.9(59)1.6+x=5.3(60)7.2+x=12.6(61)3.5+x=5.6(62)6.6+x=8.5(63)5+x=8.8(64)9.3-x=4.8(65)8.5-x=2.5(66)7.4-x=7.2(67)7.4-x=4.2(68)7-x=5.5(69)3.5-x=1.8(70)9.9-x=5.1(71)9.1-x=6(72)6-x=3(73)28x=112(74)23x=184(75)6x=36(76)26x=104(77)2x=14(78)79x=158(79)26x=78(80)4x=52(81)4x=200(82)1x=9(83)0.4x=16.8(84)0.7x=4.2(85)1.7x=15.3(86)0.2x=15.6(87)0.3x=9(88)0.8x=3.2(89)0.6x=10.2(90)0.5x=12.5(91)4x=3.6(92)37x=18.5(93)49x=14.7(94)14x=11.2(95)10x=4(96)45x=9(97)2x=10.4(98)25x=15(99)3x=12.6(100)140÷x=35(101)126÷x=2(102)46÷x=2(103)92÷x=46(104)48÷x=8(105)148÷x=37(106)120÷x=10(107)42÷x=21(108)51÷x=17(109)16÷x=0.2(110)11.2÷x=1.4(111)11.2÷x=0.4(112)13.5÷x=0.3(113)15.2÷x=1.9(114)9.5÷x=0.5(115)9.2÷x=4.6(116)6÷x=0.3(117)16.4÷x=4.1(118)x÷3=39(119)x÷29=5(120)x÷2=28(121)x÷2=49(122)x÷11=5(123)x÷11=11(124)x÷6=25(125)x÷56=2(126)x÷19=7(127)x÷5=2(128)x÷46=0.4(129)x÷4=1.3(130)x÷5=3.4(131)x÷11=0.2(132)x÷20=0.4(133)x÷10=0.8(134)x÷19=0.5(135)x÷5=0.5(136)3x+58=130(137)2x+37=53(138)21x+51=135(139)2x+30=120(140)2x+38=198(141)7x+42=140(142)4x+19=151(143)3x+32=203(144)79x+42=200(145)4x-52=48(146)20x-43=117(147)6x-24=114(148)6x-27=63(149)5x-58=42(150)33x-27=138(151)7x-21=56(152)8x-21=27(153)2x-36=140(154)7x+2.1=9.1(155)18x+1=8.2(156)24x+2.2=21.4(157)3x+1.8=17.1(158)7x+3.2=14.4(159)6x+1.9=16.3(160)3x+2.1=6.3(161)28x+3=19.8(162)2x+2.4=3(163)0.2x+4.1=8.1(164)2.5x+1.8=9.3(165)2.5x+2.6=7.6(166)0.2x+5.4=20.6(167)0.8x+4.1=15.3(168)7x+2.7=16.7(169)0.8x+2.8=11.6(170)0.2x+2.2=5.6(171)1.9x+2=7.7(172)45x-2.4=6.6(173)5x-3.5=10(174)46x-5=4.2(175)3x-1.7=1.9(176)33x-3.9=9.3(177)5x-1.2=9.8(178)18x-1.7=3.7(179)34x-4.6=5.6(180)2x-1.8=5.2(181)0.6x-4.2=9(182)0.2x-3.8=11.4(183)0.7x-2.8=16.1(184)1.5x-5.4=9.6(185)1.5x-4.4=12.1(186)1.5x-3.6=2.4(187)0.3x-1.2=9.3(188)1.7x-3.8=8.1(189)0.8x-5.8=14.2(190)29+11x=205(191)40+66x=238(192)110+7x=131(193)197+2x=281(194)140+24x=308(195)45+80x=205(196)99+26x=177(197)179+6x=203(198)96+15x=261(199)154-3x=112(200)138-3x=123(201)79-11x=46(202)196-6x=22(203)194-18x=68(204)142-2x=12(205)160-21x=34(206)197-55x=32(207)54-5x=39(208)8.7+1x=15.7(209)19.4+0.2x=36(210)16.3+1.2x=31.9(211)16.9+2.1x=31.6(212)8.7+2.9x=20.3(213)1.7+0.7x=19.2(214)4.5+0.2x=6.3(215)11.4+0.9x=29.4(216)15.4+0.3x=17.5(217)6.5+8x=11.3(218)10.3+4x=25.5(219)4.4+17x=18(220)7.7+3x=26.3(221)8.9+32x=24.9(222)11+41x=23.3(223)10.3+16x=18.3(224)7.7+53x=18.3(225)10.8+61x=23(226)19-7.1x=4.8(227)15.3-1x=4.3(228)6.1-1.3x=3.5(229)14.8-1.7x=11.4(230)8.1-2.4x=3.3(231)14.5-0.2x=13.5(232)10.1-0.8x=2.9(233)16.8-0.2x=5.8(234)13.2-0.5x=5.2(235)18.1-11x=11.5(236)10.7-11x=6.3(237)11.8-2x=4.8(238)10.8-6x=8.4(239)19.7-31x=4.2(240)12-4x=4(241)16.6-15x=13.6(242)4.7-4x=1.9(243)17.8-3x=11.8(244)2x÷12=12(245)32x÷8=16(246)8x÷4=40(247)3x÷21=6(248)8x÷88=2(249)4x÷36=5(250)42x÷14=6(251)72x÷9=16(252)6x÷10=15(253)1.5x÷10=0.9(254)0.6x÷30=0.4(255)6.3x÷18=0.7(256)9.6x÷8=2.4(257)1x÷20=0.8(258)8.4x÷28=0.6(259)1.8x÷6=3(260)1.1x÷5=3.3(261)0.2x÷14=0.5(262)5x÷2=4.5(263)20x÷4=4.5(264)28x÷20=0.7(265)4x÷32=0.2(266)18x÷12=1.5(267)9x÷21=0.6(268)3x÷5=3.6(269)3x÷93=0.2(270)11x÷5=2.2(271)14x+4x=144(272)8x+4x=192(273)12x+4x=32(274)12x+10x=286(275)19x+11x=270(276)18x+3x=84(277)12x+13x=75(278)9x+8x=323(279)7x+12x=38(280)9x-5x=52(281)17x-10x=56(282)13x-10x=42(283)6x-3x=69(284)9x-3x=120(285)14x-5x=27(286)15x-9x=36(287)9x-7x=36(288)16x-12x=44(289)4.6x+5.4x=170(290)2.4x+8.1x=84(291)9x+1.2x=112.2(292)0.7x+4.1x=96(293)1.8x+0.8x=62.4(294)4.7x+1.9x=46.2(295)2.5x+7.4x=39.6(296)0.2x+0.6x=15.2(297)2.8x+9.9x=38.1(298)9.5x-4.7x=33.6(299)2.1x-1.6x=21(300)7.9x-1.3x=19.8(301)2.4x-0.8x=57.6(302)5.6x-4.2x=21(303)1.1x-0.8x=16.8(304)5.5x-4x=13.5(305)8.8x-3.4x=37.8(306)2x-0.5x=73.5(307)14x+17x+37=347(308)9x+17x+36=114(309)5x+9x+18=46(310)11x+5x+9=153(311)11x+14x+18=168(312)14x+2x+21=101(313)7x+5x+39=231(314)7x+11x+31=265(315)2x+3x+11=96(316)14x+9x-8=84(317)8x+2x-35=165(318)4x+19x-35=172(319)9x+5x-12=30(320)4x+8x-25=191(321)4x+3x-22=237(322)12x+5x-34=17(323)8x+2x-9=181(324)2x+8x-31=99(325)16x-9x+27=62(326)12x-4x+31=71(327)9x-2x+31=129(328)12x-4x+48=152(329)6x-4x+26=80(330)15x-3x+38=86(331)16x-10x+4=58(332)8x-5x+12=54(333)16x-12x+10=42(334)15x-9x-37=29(335)9x-2x-21=63(336)13x-4x-37=35(337)17x-4x-4=87(338)9x-7x-13=25(339)8x-4x-23=13(340)8x-5x-41=34(341)5x-2x-5=79(342)6x-3x-32=40(343)7.8x+8.7x+4=185.5(344)4.9x+1.1x+1.3=79.3(345)2.7x+2.4x+2.7=145.5(346)2.4x+5.1x+4.4=64.4(347)3x+2.2x+4.8=62(348)2.1x+6.1x+0.4=131.6(349)0.3x+7.9x+0.2=82.2(350)6.8x+2.9x+2.5=70.4(351)2.7x+8.7x+2.1=36.3(352)37x+32x+3.7=72.7(353)30x+32x+2.2=113.8(354)18x+24x+0.5=55.1(355)56x+19x+3.3=115.8(356)39x+48x+4.5=178.5(357)77x+39x+3.7=61.7(358)3x+26x+0.6=107.9(359)24x+77x+1.9=42.3(360)22x+18x+0.3=144.3(361)3x+2x-4.2=135.8(362)2.6x+1.9x-1.4=75.1(363)0.9x+1.4x-0.5=70.8(364)2.7x+4.3x-0.9=90.1(365)8.5x+2.9x-3.2=110.8(366)0.4x+4.8x-0.6=61.8(367)1.1x+3.8x-3.2=21.3(368)7.7x+2x-3.9=64(369)1.7x+1.2x-2=131.4(370)10x+20x-4.4=85.6(371)18x+41x-1.4=39.9(372)5x+19x-2.1=2.7(373)81x+34x-0.2=126.3(374)15x+13x-1.8=96.2(375)68x+89x-4.3=89.9(376)34x+64x-0.3=58.5(377)22x+32x-1.3=139.1(378)71x+28x-1.3=68(379)3.9x-3x+0.5=3.2(380)2.5x-1.8x+3.7=20.5(381)9.7x-8.8x+4.8=12.9(382)4x-2.5x+2.3=9.8(383)2.9x-1.8x+2.8=20.4(384)4x-3.5x+0.7=12.2(385)2x-0.5x+4.3=29.8(386)8.5x-5.8x+1.1=20(387)8.8x-8.6x+2.4=3.6(388)91x-48x+4.5=13.1(389)39x-13x+3.2=26.6(390)45x-26x+3.7=39.8(391)77x-7x+0.6=35.6(392)67x-54x+0.4=8.2(393)88x-51x+3=10.4(394)56x-16x+1.5=25.5(395)55x-11x+3.3=38.5(396)71x-33x+1.2=39.2(397)3.6x-1.6x-3.7=40.3(398)6.3x-2.6x-3.6=48.2(399)5.9x-3.2x-3.8=34(400)4.9x-2.1x-4.2=29.4(401)2.1x-0.9x-1=42.2(402)9.3x-7.2x-1.3=15.5(403)3.8x-0.8x-2.1=60.9(404)9.3x-1x-4.6=45.2(405)6.4x-1.6x-0.9=27.9(406)57x-25x-2=14(407)61x-34x-1.5=22.8(408)47x-41x-1.9=8.9(409)93x-77x-0.4=4.4(410)15x-8x-1.8=38.8(411)27x-15x-1.9=31.7(412)41x-21x-1.7=32.3(413)71x-30x-0.2=57.2(414)97x-79x-0.5=12.1(415)9x+2×52=302(416)11x+3×47=273(417)3x+24×2=183(418)3x+7×21=258(419)15x+26×7=287(420)16x+2×72=224(421)4x+16×2=124(422)3x+14×2=220(423)14x+2×43=170(424)11x-62×2=74(425)4x-11×8=68(426)3x-3×57=18(427)4x-3×35=51(428)2x-35×2=94(429)2x-13×5=115(430)4x-3×22=26(431)8x-4×20=56(432)10x-2×27=96(433)3.5x+1.6×9=21.4(434)0.7x+0.4×25=27.5(435)1.8x+1.2×10=24.6(436)0.6x+1.3×4=13.6(437)0.7x+1.6×12=36(438)0.5x+1.1×2=3.2(439)0.2x+0.9×18=23(440)4.5x+3.6×5=27(441)0.7x+1.2×3=19(442)2x+15×0.3=8.9(443)19x+42×0.3=24(444)18x+4×1.4=21.8(445)45x+5×3.3=30(446)34x+4×3.1=22.6(447)12x+6×1.4=20.4(448)4x+3×1.5=5.3(449)11x+2×2.7=15.3(450)4x+12×0.6=24.8(451)0.2x-1.9×3=2.7(452)4.6x-1×4=9.8(453)0.5x-0.6×24=3.1(454)0.3x-1.5×5=4.2(455)3.2x-0.2×14=10(456)0.3x-3.8×3=1.8(457)2.6x-0.6×12=11(458)0.3x-1.8×2=2.7(459)0.5x-0.3×11=1.2(460)4x-6×0.8=7.6(461)18x-9×0.4=3.6(462)18x-18×0.3=10.8(463)9x-45×0.3=4.5(464)17x-2×0.5=2.4(465)46x-3×4=6.4(466)7x-2×1.2=8.1(467)38x-15×0.8=7(468)40x-3×3=7(469)2(5x+44)=198(470)2(2x+15)=126(471)2(x+34)=152(472)3(2x+21)=75(473)5(3x+10)=170(474)2(8x+26)=148(475)3(5x+18)=84(476)4(5x+34)=196(477)2(4x+28)=80(478)4(3x-35)=64(479)2(3x-20)=122(480)11(x-15)=154(481)5(11x-26)=200(482)3(22x-30)=108(483)4(8x-41)=124(484)10(x-8)=160(485)4(8x-45)=44(486)5(18x-30)=120(487)7(0.2x+5.4)=49(488)2(1.7x+7.8)=36(489)3(0.4x+1.8)=45(490)9(1.4x+1.3)=36.9(491)7(1.3x+1.3)=36.4(492)2(1.7x+7)=37.8(493)2(1.1x+9.3)=23(494)2(1.1x+4)=43.2(495)12(0.8x+1.3)=44.4(496)5(0.5x-9.2)=41.5(497)2(1.4x-0.5)=7.4(498)3(0.4x-5.3)=38.1(499)25(0.2x-1.3)=27.5(500)3(0.8x-3.9)=21.9(501)20(0.2x-5)=48(502)3(6x-9.3)=8.1(503)2(0.5x-9.1)=24.8(504)21(0.6x-5.2)=29.4(505)(12x+13)÷17=5(506)(8x+6)÷2=83(507)(5x+13)÷32=4(508)(5x+15)÷6=25(509)(6x+32)÷44=1(510)(16x+36)÷21=4(511)(x+43)÷5=13(512)(14x+21)÷7=15(513)(11x+11)÷22=6(514)(18x-15)÷3=67(515)(15x-9)÷47=3(516)(6x-41)÷7=7(517)(4x-4)÷4=13(518)(6x-36)÷6=8(519)(5x-2)÷2=19(520)(13x-12)÷2=46(521)(9x-33)÷30=7(522)(17x-22)÷6=19(523)(0.4x+8.6)÷2=5.3(524)(6.7x+0.6)÷12=3.4(525)(3.3x+6.6)÷11=3.3(526)(2x+9.8)÷27=1.4(527)(3.7x+8.6)÷4=15.1(528)(2x+3.6)÷2=19.8(529)(4.2x+5)÷2=6.7(530)(5.1x+1.1)÷20=4.9(531)(3.7x+4.5)÷4=7.6(532)(3.4x-1.6)÷16=3.3(533)(7.4x-1.9)÷3=4.3(534)(3.1x-9.4)÷2=23.2(535)(9.5x-1.5)÷10=4.6(536)(5x-0.6)÷2=37.2(537)(9x-1.6)÷8=8.8(538)(1.7x-0.6)÷4=4.1(539)(5.3x-6.7)÷25=2.7(540)(7.2x-4.5)÷15=4.5參考答案(1)x=76(2)x=41(3)x=37(4)x=73(5)x=6(6)x=14(7)x=57(8)x=87(9)x=57(10)x=90(11)x=87(12)x=99(13)x=92(14)x=93(15)x=55(16)x=38(17)x=81(18)x=78(19)x=8.8(20)x=3.5(21)x=6.2(22)x=8.3(23)x=7.9(24)x=5.5(25)x=1(26)x=8.5(27)x=9.3(28)x=6.4(29)x=3.5(30)x=6.5(31)x=7.6(32)x=6.5(33)x=6.7(34)x=9.1(35)x=3.6(36)x=3(37)x=68(38)x=81(39)x=18(40)x=25(41)x=2(42)x=27(43)x=69(44)x=7(45)x=17(46)x=30(47)x=28(48)x=26(49)x=41(50)x=54(51)x=35(52)x=51(53)x=12(54)x=39(55)x=2.3(56)x=0.9(57)x=1.3(58)x=7.7(59)x=3.7(60)x=5.4(61)x=2.1(62)x=1.9(63)x=3.8(64)x=4.5(65)x=6(66)x=0.2(67)x=3.2(68)x=1.5(69)x=1.7(70)x=4.8(71)x=3.1(72)x=3(73)x=4(74)x=8(75)x=6(76)x=4(77)x=7(78)x=2(79)x=3(80)x=13(81)x=50(82)x=9(83)x=42(84)x=6(85)x=9(86)x=78(87)x=30(88)x=4(89)x=17(90)x=25(91)x=0.9(92)x=0.5(93)x=0.3(94)x=0.8(95)x=0.4(96)x=0.2(97)x=5.2(98)x=0.6(99)x=4.2(100)x=4(101)x=63(102)x=23(103)x=2(104)x=6(105)x=4(106)x=12(107)x=2(108)x=3(109)x=80(110)x=8(111)x=28(112)x=45(113)x=8(114)x=19(115)x=2(116)x=20(117)x=4(118)x=117(119)x=145(120)x=56(121)x=98(122)x=55(123)x=121(124)x=150(125)x=112(126)x=133(127)x=10(128)x=18.4(129)x=5.2(130)x=17(131)x=2.2(132)x=8(133)x=8(134)x=9.5(135)x=2.5(136)x=24(137)x=8(138)x=4(139)x=45(140)x=80(141)x=14(142)x=33(143)x=57(144)x=2(145)x=25(146)x=8(147)x=23(148)x=15(149)x=20(150)x=5(151)x=11(152)x=6(153)x=88(154)x=1(155)x=0.4(156)x=0.8(157)x=5.1(158)x=1.6(159)x=2.4(160)x=1.4(161)x=0.6(162)x=0.3(163)x=20(164)x=3(165)x=2(166)x=76(167)x=14(168)x=2(169)x=11(170)x=17(171)x=3(172)x=0.2(173)x=2.7(174)x=0.2(175)x=1.2(176)x=0.4(177)x=2.2(178)x=0.3(179)x=0.3(180)x=3.5(181)x=22(182)x=76(183)x=27(184)x=10(185)x=11(186)x=4(187)x=35(188)x=7(189)x=25(190)x=16(191)x=3(192)x=3(193)x=42(194)x=7(195)x=2(196)x=3(197)x=4(198)x=11(199)x=14(200)x=5(201)x=3(202)x=29(203)x=7(204)x=65(205)x=6(206)x=3(207)x=3(208)x=7(209)x=83(210)x=13(211)x=7(212)x=4(213)x=25(214)x=9(215)x=20(216)x=7(217)x=0.6(218)x=3.8(219)x=0.8(220)x=6.2(221)x=0.5(222)x=0.3(223)x=0.5(224)x=0.2(225)x=0.2(226)x=2(227)x=11(228)x=2(229)x=2(230)x=2(231)x=5(232)x=9(233)x=55(234)x=16(235)x=0.6(236)x=0.4(237)x=3.5(238)x=0.4(239)x=0.5(240)x=2(241)x=0.2(242)x=0.7(243)x=2(244)x=72(245)x=4(246)x=20(247)x=42(248)x=22(249)x=45(250)x=2(251)x=2(252)x=25(253)x=6(254)x=20(255)x=2(256)x=2(257)x=16(258)x=2(259)x=10(260)x=15(261)x=35(262)x=1.8(263)x=0.9(264)x=0.5(265)x=1.6(266)x=1(267)x=1.4(268)x=6(269)x=6.2(270)x=1(271)x=8(272)x=16(273)x=2(274)x=13(275)x=9(276)x=4(277)x=3(278)x=19(279)x=2(280)x=13(281)x=8(282)x=14(283)x=23(284)x=20(285)x=3(286)x=6(287)x=18(288)x=11(289)x=17(290)x=8(291)x=11(292)x=20(293)x=24(294)x=7(295)x=4(296)x=19(297)x=3(298)x=7(299)x=42(300)x=3(301)x=36(302)x=15(303)x=56(304)x=9(305)x=7(306)x=49(307)x=10(308)x=3(309)x=2(310)x=9(311)x=6(312)x=5(313)x=16(314)x=13(315)x=17(316)x=4(317)x=20(318)x=9(319)x=3(320)x=18(321)x=37(322)x=3(323)x=19(324)x=13(325)x=5(326)x=5(327)x=14(328)x=13(329)x=27(330)x=4(331)x=9(332)x=14(333)x=8(334)x=11(335)x=12(336)x=8(337)x=7(338)x=19(339)x=9(340)x=25(341)x=28(342)x=24(343)x=11(344)x=13(345)x=28(346)x=8(347)x=11(348)x=16(349)x=10(350)x=7(351)x=3(352)x=1(353)x=1.8(354)x=1.3(355)x=1.5(356)x=2(357)x=0.5(358)x=3.7(359)x=0.4(360)x=3.6(361)x=28(362)x=17(363)x=31(364)x=13(365)x=10(366)x=12(367)x=5(368)x=7(369)x=46(370)x=3(371)x=0.7(372)x=0.2(373)x=1.1(374)x=3.5(375)x=0.6(376)x=0.6(377)x=2.6(378)x=0.7(379)x=3(380)x=24(381)x=9(382)x=5(383)x=16(384)x=23(385)x=17(386)x=7(387)x=6(388)x=0.2(389)x=0.9(390)x=1.9(391)x=0.5(392)x=0.6(39