五年级解方程练习题180题(有答案过程)ok.docx

五年级解方程180题有答案(1)(0.5+x)+x=9.8÷2(12)X+8.3=10.7(2)2(X+X+0.5)=9.8(13)15x=3(3)25000+x=6x(14)3x8=16(4)3200=440+5X+X(15)3x+9=27(5)X-0.8X=6(16)18(-2)=270(6)12-8x=4.8(17)12x=300-4x(7)7.5+2X=15(18)7x+5.3=7.4(8)1.2x=81.6(19)3x÷5=4.8(7)x+5.6=9.4(25)0.5x+8=43(10)-0.7x=3.6(26)6-3x=18(ll)91÷x=1.3(27)7(6.5+x)=87.5(28) O.273÷x=0.35(40)20-9x=2(29) 1.8x=0.972(41)x+19.8=25.8(30) x÷0.756=90(42)5.6x=33.6(31) O.l(x+6)=3.3×0.4(43) 9.8-=3.8(32)(27.5-35)÷x=4(44) 75.6÷x=12.6(33)9-40=5(45) 5x+12.5=32.3(34) x÷5+9=21(46)5(x+8)=102(35) 48-27+5x=31(47)x+3x+10=70(36) 10.5+x+21=56(48)3(x+3)=50-+3(37) x+2x+18=78(49)5x+15=60(38) (200-)÷5=30(50)3.5-5x=2(39) (-140)÷70=4(51)(52)(53)(54)(55)(56)(57)(58)(59)(60)(61)(62)0.3×7+4x=12.5(63)6x+18=48x÷l.5-1.25=0.75(64)3(x+2.1)=10.54-1.3×6=2.6(65)12-9x=8.76x+12.8=15.8(66)13(x+5)=169150×2+3x=690(67)2-97=34.22-20=4(68)3.4-48=26.83x+6=18(69)42x+25x=1342(2.8+x)=10.4(70)1.5(x+1.6)=3.6(-3)÷2=7.5(71)2(-3)=5.813.2x+9x=33.3(72)65x+7=1373x=x+100(73)9x+4×2.5=91x+4.8=7.2(74)4.2x+2.5x=134(75) 10.5x+6.5x=51(76) 89-43x=9.2(77)5-45=100(87)0.5×16-16×0.2=4x(88)(89)139.25-X=O.40318.9÷X=0.3(78)1.2-0.5x=6.3(90)23x=14x+27(79)23.4=2x(91)x+14x=75(80)4-=48.6(92)95-5x=80(81)4.5-=28(93：)1.8+6x=54(82)X-5.7=2.15(94)6.7-60.3=6.7(83)5X-2X=18(95)9+4x=53(84)3X+0.7=7(96)2x+8=16(85)3.5×2=4.2+x(97)20-14x=24(86)26×1.5=2x+10(98)x+7x=8(99)9-3x=6(lll)3x+7=28(100)6-8=4(112)3-7=26(101)5x+x=9(113)9-=16(102)8-8=6x(114)24x+x=50(103)4x=20(115)1.2-8=4(104)2-6=12(116)3-8=31(105)7x+7=14(117)6x+6=12(106)6-6=0(118)3-3=3(107)5x+6=ll(119)5-3x=4(108)2-8=10(120)2x+16=19(109)2.5-8=43(121)5x+8=19(110)x=74(122)14-6x=8(123)15+6x=27(135)7-9=20(124)5-8x=4(136)-56=l(125)7x+8=15(137)8-7x=l(126)9-2x=l(138)-30=12(127)4+5x=9(139)6-21=21(128)10-=8(140)6-3=6(129)8x+9=17(141)9x=18(130)9+6x=15(142)4-18=14(131)x+9x=4+7(143)5x+9=ll(132)2x+9=17(144)17-2x=ll(133)8-4x=6(145)x+4+8=23(134)6-7=28(146)7-12=9(158)9÷4x=40(147)X-5.7=2.15(159)O.2-0.4+0.5=3.7(148)5X-2X=18(160)9.4-O.4x=16.2(149)3X+0.5=5(161)92-4x=20(150)3.5×2=4x(162)7x÷6=1.4(151)2×1.5=2x(163)16x+34x=l(152)0.5×16-16×0.l=4x(164)18-14x=12(153)9.26-X=0.402(154)36.9÷X=0.3(165)3-42÷14=15(155)X÷0.5=2.6(166)12+4x=56(156)93-5x=80(157)180-6x=54(167)22-14x=12(168) X+8. 3=10. 7(177)12x+8x=4.8(169)5x=30(178)7(-2)=49(170)-5.6=9.4(179)4×8+2x=36(171)x÷0.8=90(180)(-2)÷3=7(172)3-8=16(181)x÷5+9=21(173)3x+9=27(182)(300-)÷5=30(174)5.3+7x=7.4(183)91÷x=1.3(175)3x÷5=4.8(184)41-3x=17(176)X-0.8X=6X=3.8 (10)-0. 7x=3.60. 3x=3. 6 0. 3x÷0. 3=3.6÷0. 3X=12(ll)91÷x=1.391÷x×x=1.3×x1.3x=911.3x÷l. 3=91 ÷ 1.3 X=70(12) X+8.3=10. 7X+8. 3-8.3=10. 7-8.3X=2.4 (13)15x=315x÷15=3÷15X=O. 2(14) 3-8=16 3-8+8=16+8 3x=24 3x÷3=24÷3X=8(15) 3x+9=27 3x+9-9=27-93x=183x÷3=18÷33x=6 (16) 18(-2)=27018-36=270 18-36+36=270+36 18x=306 18x÷18=306÷18X=17(17) 12x=300-4x12x+4x=300-4x+4x16x=30016x÷16=300÷16X=18. 75(18) 7x+5. 3=7.4 7x+5.3-5.3=7.4-5.37x=2.1五年级解方程180题答案(1) (0.5+x)+x=9.8÷20.5+2x=4.90.5+2-0.5=4.9-0.52x=4.42x÷2=4.4÷2X=2.2(2) 2(X+X+0.5)=9.82x+2x+l=9.84x+l-l=9.8-14x=8.84x÷4=8.8÷4X=2.2(3) 25000+x=6x25000+-=6-5x=250005x÷5=25000÷5X=5000(4) 3200=440+5X+X6x+440=32006x+450-450=3200-4406x=276O6x÷6=2760÷6X=460(5) X-0.8X=60.2x=60.2x÷0.2=6÷0.2X=30(6) 12-8x=4.84x=4.84x÷4=48÷4X=I.2(7) 7.5+2X=152x+7.5-7.5=15-7.52x=7.52x÷2=7.5÷2X=3.75(8) 1.2x=81.61.2x÷1.2=81.6÷1.2X=68(9) x÷5.6=9.4X+5.6-5.6=9.4-5.67x÷7=2.1÷7X=O.3(19) 3x÷5=483x÷5×5=48×53x=243x÷3=24÷3X=8(20) 30÷x+25=8530÷x+25-25=85-2530÷x=6030÷x×x=60×x30=60x60x÷60=30÷60X=O.5(21) 1.4×8-2x=621.2- 2x+2x=6+2x11. 2=6+2x2x+6-6=ll.2-62x=5.22x÷2=5.2÷2X=2.6(22) 6-12.8×3=O.066-38.4=0.066x=38.466x÷6=38.46÷6X=6.41(23) 410-3x=170410-3+3x=170+3x17Q+3x=4103x+170-170=410-1703x=2403x÷3=240÷3X=80(24) 3(x+0.5)=213x+l.5=213x+l.5-1.5=21-1.53x=19.53x÷3=19.5÷3X=65(25) 0.5x+8=43O.5x+8-8=43-80.5x=35O.5x÷0.5=35÷0.5X=70(26) 6-3x=183x=183x÷3=18÷3X=6(27) 7(6.5+x)=87.57x+45.5=87.57x+45.5-45.5=87.5-45.57x=427x÷7=42÷7X=6(28) 0.273÷x=0.35x=0.273÷0.35X=O.78(29) 1.8x=0.9721. 8x÷l.8=0.972÷1.8X=O.54(30) x÷0.756=90x÷0.756×O.756=90×O.756X=68.04(31) O.l(x+6)=3.3×0.4O.lx+0.6=1.32O.lx+0.6-0.6=1.32-0.6O.Ix=