五年级解方程练习及答案.docx
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五年级解方程练习及答案
五年级解方程题有答案
(12)
X+8.3=10.7
(1)
(0.5+x)+x=9.8*2
(13)
15x=3
(2)
2(X+X+0.5)=9.8
(14)3x-8=16
(3)
25000+x=6x
(15)3x+9=27
(4)
3200=440+5X+X
(16)
18(x-2)=270
(5)
X-0.8X=6
(17)
12x=300-4x
(6)12x-8x=4.8
(18)
7x+5.3=7.4
(7)7.5+2X=15
(19)
3x廿=4.8
(8)1.2x=81.6
(25)
0.5x+8=43
(7)
x+5.6=9.4
(26)
6x-3x=18
(10)x-0.7x=3.6
(27)
7(6.5+x)=87.5
(11)91-x=1.3
(28)
0.273*0.35
(40)
20-9x=2
(29)
1.8x=0.972
(41)
x+19.8=25.8
(30)
xP.756=90
(42)
5.6x=33.6
(31)
0.1(x+6)=3.3X0.4
(43)
9.8-x=3.8
(32)
(27.5-3.5)-nx=4
(44)
75.6-(=12.6
(33)
9x-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-x+3
(37)
x+2x+18=78
(49)
5x+15=60
(38)
(200-x)廿=30
(50)
3.5-5x=2
(39)
(x-140)-70=4
(51)
0.3X7+4x=12.5
(52)x-1.5-1.25=0.75
(64)3(x+2.1)=10.5
(53)4x-1.3X6=2.6
(65)12x-9x=8.7
(54)6x+12.8=15.8
(66)13(x+5)=169
(55)150X2+3x=690
(67)2x-97=34.2
(56)2x-20=4
(68)3.4x-48=26.8
(57)3x+6=18
(69)42x+25x=134
(58)2(2.8+x)=10.4
(70)1.5(x+1.6)=3.6
(59)(x-3)十2=7.5
(71)2(x-3)=5.8
(60)13.2x+9x=33.3
(72)65x+7=137
(61)3x=x+100
(73)9x+4X2.5=91
(62)x+4.8=7.2
(74)4.2x+2.5x=134
(63)6x+18=48
(75)10.5x+6.5x=51
(76)89x-43x=9.2
(88)139.25—X=0.403
(77)5x-45=100
(89)18.9*0.3
(78)1.2x-0.5x=6.3
(90)23x=14x+27
(79)23.4=2x
(91)x+14x=75
(80)4x-x=48.6
(92)95—5x=80
(81)4.5x-x=28
(93)1.8+6x=54
(82)X-5.7=2.15
(94)6.7x—60.3=6.7
(83)5X-2X=18
(95)9+4x=53
(84)3X+0.7=7
(96)2x+8=16
(85)3.5X2=4.2+x
(97)20x-14x=24
(86)26X1.5=2x+10
(98)x+7x=8
(87)0.5X16—16X0.2=4x
(99)9
x-3x=6
(111)3x+7=28
(100)
6x-8=4
(112)3x-7=26
(101)
5x+x=9
(113)9x-x=16
(102)
8x-8=6x
(114)24x+x=50
(103)
4
4x=20
5
(115)1.2x-8=4
(104)
2x-6=12
(116)3x-8=31
(105)
7x+7=14
(117)6x+6=12
(106)
6x-6=0
(118)3x-3=3
(107)
5x+6=11
(119)5x-3x=4
(108)
2x-8=10
(120)2x+16=19
(109)
2.5x-8=4
(121)5x+8=19
(110)
37
x-一=7
4
(122)14-6x=8
(123)15+6x=27
(135)7x-9=20
(124)5-8x=4
(136)x-56=1
(125)7x+8=15
(137)8-7x=1
(126)9-2x=1
(138)x-30=12
(127)4+5x=9
(139)6x-2仁21
(128)10-x=8
(140)6x-3=6
(129)8x+9=17
(141)9x=18
(130)9+6x=15
(142)4x-18=14
(131)x+9x=4+7
(143)5x+9=11
(132)2x+9=17
(144)17-2x=11
(133)8-4x=6
(145)x+4+8=23
(134)6x-7=28
(146)7x-12=9
(158)9+4x=40
(147)X-5.7=2.15
(159)0.2x—0.4+0.5=3.7
(148)5X-2X=18
(160)9.4x—0.4x=16.2
(149)3X+0.5=5
(161)92—4x=20
(150)3.5X2=4x
(162)7x+6=1.4
(151)26X1.5=2x
(163)16x+34x=1
(152)0.5X16—16X0.仁4x
(164)18x—14x=12
(153)9.26—X=0.402
(165)3x—42+14=15
(154)36.9空=0.3
(166)12+4x=56
(155)X-X).5=2.6
(156)93—5x=80
(167)22—14x=12
(157)180-6x=54
(168)X+8.3=10.7
(177)12x+8x=4.8
(169)5x=30
(178)7(x-2)=49
(170)x-5.6=9.4
(179)4X8+2x=36
(171)x+0.8=90
(180)(x-2)+3=7
(172)3x-8=16
(181)x廿+9=21
(173)3x+9=27
(182)(300-x)廿=30
(174)5.3+7x=7.4
(183)91-x=1.3
(175)3x+5=4.8
(176)X-0.8X=6
(184)41-3x=17
五年级解方程180题答案
(1)(0.5+x)+x=9.8-2
0.5+2x=4.9
0.5+2x-0.5=4.9-0.5
2x=4.4
2x-2=4.4-2
X=2.2
(2)2(X+X+0.5)=9.8
2x+2x+仁9.8
4x+1-1=9.8-1
4x=8.8
4x-4=8.8—4
X=2.2
(3)25000+x=6x
25000+x-x=6x-x
5x=25000
5x廿=25000-5
X=5000
(4)3200=440+5X+X
6x+440=3200
6x+450-450=3200-440
6x=2760
6x-5=2760-5
X=460
(5)X-0.8X=6
0.2x=6
0.2x+0.2=6-0.2
X=30
(6)12x-8x=4.8
4x=4.8
4x-4=4.8-4
X=1.2
(7)7.5+2X=15
2x+7.5-7.5=15-7.5
2x=7.5
2x-2=7.5-2
X=3.75
(8)1.2x=81.6
1.2x-1.2=81.6-1.2
X=68
X+5.6-5.6=9.4-5.6
X=3.8
(10)x-0.7x=3.6
0.3x=3.6
0.3x*0.3=3.6-).3
X=12
(11)91-x=1.3
91-xXx=1.3Xx
1.3x=91
1.3x-1.3=91-1.3
X=70
(12)X+8.3=10.7
X+8.3-8.3=10.7-8.3
X=2.4
(13)15x=3
15x-15=3-15
X=0.2
(14)3x-8=16
3x-8+8=16+8
3x=24
3x-3=24-3
X=8
(15)3x+9=27
3x+9-9=27-9
3x=18
3x-3=18-3
3x=6
(16)18(x-2)=270
18x-36=270
18x-36+36=270+36
18x=306
18x-18=306-18
X=17
(17)12x=300-4x
12x+4x=300-4x+4x
16x=300
16x-16=300-16
X=18.75
(9)x+5.6=9.4
(18)
7x+5.3=7.4
0.5x=35
7x+5.3-5.3=7.4-5.3
0.5x*0.5=35-0.5
7x=2.1
X=70
7x-7=2.1-7
(26)
6x-3x=18
X=0.3
3x=18
(19)
3x廿=4.8
3x-3=18-3
3x廿X5=4.8X5
X=6
3x=24
(27)
7(6.5+x)=87.5
3x-3=24-3
7x+45.5=87.5
X=8
7x+45.5-45.5=87.5-45.5
(20)
30£+25=85
7x=42
30+x+25-25=85-25
7x-7=42—
30-c=60
X=6
30-xXx=60Xx
30=60x
(28)
0.273-x=0.35
60x北0=30北0
x=0.273-0.35
X=0.5
X=0.78
(21)
1.4X8-2x=6
11.2-2x+2x=6+2x
(29)
1.8x=0.972
11.2=6+2x
1.8x-1.8=0.972-1.8
2x+6-6=11.2-6
X=0.54
2x=5.2
2x+2=5.2—2
(30)
x-0.756=90
X=2.6
x-0.756X0.756=90X0.756
(22)
6x-12.8X3=0.06
X=68.04
6x-38.4=0.06
(31)
0.1(x+6)=3.3X0.4
6x=38.46
0.1x+0.6=1.32
6x北=38.46北
0.1x+0.6-0.6=1.32-0.6
X=6.41
0.1x=0.72
(23)
410-3x=170
0.1x-0.1=0.72-0.1
410-3x+3x=170+3x
X=7.2
170+3x=410
(32)
(27.5-3.5)-x=4
3x+170-170=410-170
24-x=4
3x=240
x=24-4
3x-3=240-3
X=6
X=80
(33)
9x-40=5
(24)3(x+0.5)=21
9x-40+40=5+40
3x+1.5=21
9x=45
3x+1.5-1.5=21-1.5
9x-9=45+9
3x=19.5
X=5
3x-3=19.5-3
(34)
x-5+9=21
X=6.5
x-5+9-9=21-9
(25)
0.5x+8=43
x-5=12
0.5x+8-8=43-8
x+5X5=12X5
X=60
X=6
(35)
48-27+5x=31
(44)75.6-x=12.6
5x+21-2仁31-21
X=75.6-12.6
5x=10
5x-5=10廿
X=6
X=2
(45)5x+12.5=32.3
(36)
10.5+x+21=56
5x+12.5-12.5=32.3-12.5
x+31.5-31.5=56-31.5
5x=19.8
x=24.5
5x廿=19.8-5
(37)
x+2x+18=78
X=3.96
3x+18-18=78-18
(46)5(x+8)=102
3x=60
5x+40=102
3x-3=60—3
5x+40-40=102-40
X=20
5x=62
(38)
(200-x)-5=30
5x-h5=62廿
(200-x)-5X5=30X5
X=12.4
200-x=150
(47)x+3x+10=70
200-x+x=150+x
4x+10=70
150+x=200
4x+10-10=70-10
X+150-150=200-150
4x=60
X=50
4x—4=60—4
X=15
(39)
(x-140)-70=4
(48)3(x+3)=50-x+3
(x-140)-70X70=4X70
3x+9=53-x
X-140=280
3x+x+9-9=53-x+x-9
X-140+140=280+140
4x=44
X=420
4x—4=44—4
(40)20-9x=2
9x=20-2
X=11
9x=18
(49)5x+15=60
9x+9=18+9
5x+15-15=60-15
X=2
5x=45
(41)
x+19.8=25.8
5x+5=45—5
X+19.8-19.8=25.8-19.8
X=9
X=6
(50)3.5-5x=2
3.5-5x+5x=2+5x
(42)
5.6x=33.6
5x+2=3.5
5.6x弋.6=33.6*5.6
5x+2-2=3.5-2
X=6
5x=1.5
5x廿=1.5-5
(43)9.8-x=3.8
X=0.3
9.8-x+x=3.8+x
(51)0.3X7+4x=12.5
3.8+x=9.8
4x+2.1=12.5
X=9.8-3.8
4x+2.1-2.1=12.5-2.1
4x=10.4
X-3=15
4x-^4=10.4+4
X=18
X=2.6
(52)x+1.5-1.25=0.75
(60)13.2x+9x=33.3
x+1.5-1.25+1.25=0.75+1.25
22.2x=33.3
x+1.5=2
22.2x-22.2=33.3-22.2
x+1.5X1.5=2X1.5
X=1.5
X=3
(61)3x=x+100
(53)4x-1.3X6=2.6
3x-x=x-x+100
4x-1.3X6+1.3X6=2.6+1.3X6
2x=100
4x=10.4
2x+2=100+2
4x+4=10.4+4
X=50
X=2.6
(62)x+4.8=7.2
(54)6x+12.8=15.8
X=7.2-4.8
6x+12.8-12.8=15.8-12.8
X=2.4
6x=3
(63)6x+18=48
6x*6=3+6
6x+18-18=48-18
X=0.5
6x=30
6x+5=30+5
(55)150X2+3x=690
x=5
3x+300=690
(64)3(x+2.1)=10.5
3x+300-300=690-300
3x+6.3=10.5
3x=390
3x=10.5-6.3
3x+3=390+3
3x=4.2
X=130
3x+3=4.2+3
(56)2x-20=4
X=1.4
2x-20+20=4+20
(65)12x-9x=8.7
2x=24
3x=8.7
2x+2=24+2
3x+3=8.7+3
X=12
X=2.9
(66)13(x+5)=169
(57)3x+6=18
13x+65=169
3x+6-6=18-6
13x+65-65=169-65
3x=12
13x=104
3x+3=12+3
13x+13=104+13
X=4
X=8
(58)2(2.8+x)=10.4
(67)2x-97=34.2
5.6+2x=10.4
2x-97+97=34.2+97
2x+5.6-5.6=10.4-5.6
2x=131.2
2x=4.8
2x+2=131.2+2
2x+2=4.8+2
X=65.6
X=2.4
(59)(x-3)-2=7.5
(68)3.4x-48=26.8
(x-3)+2X2=7.5X2
3.4x-48+48=26.8+48
4x=4.8
4x+4=4.8*4
X=1.2
6x=24
6x*6=24*6
(88)139.25-X=0.403
X=4
X=139.25-0.403
(98)x+7x=8
X=138.847
8x=8
(89)18.9+X=0.3
X=1
X=18.9-0.3
(99)9x-3x=6
X=63
6x=6
(90)23x=14x+27
X=1
23x-14x=14x-14x+27
(100)1
5x-8=4
9x=27
6x-8+8=4+8
9x+9=27*9
6x=12
X=3
X=2
(91)x+14x=75
(101)
5x+x=9
15x=75
6x=9
15x+15=75+15
6x+5=9+5
X=5
x=1.5
(92)95-5x=80
(102)
8x-8=6x
95-5x+5x=80+5x
8x-8+8=6x+8
5x+80=95
8x-6x=6x-6x+8
5x+80-80=95-80
2x=8
5x=15
2x+2=8+2
X=3
X=4
(93)1.8+6x=54
(103)
4
-x=20
6x=54-1.8
5
6x=52.2
444
—x+—=20+
6x北=52.2-h6
555
X=8.7
X=25
(94)6.7x-60.3=6.7
(104)
2x-6=12
6.7x=60.3+6.7
2x-6+6=12+6
6.7x=67
2x=18
6.7x-h6.7=67北.7
2x+2=18+2
X=10
X=9
(95)9+4x=53
(105)
7x+7=14
4x=53-9
7x+7-7=14-7
4x=44
7x=7
4x+4=44+4
7x+7=7+7
X=11
X=1
(96)2x+8=16
(106)
6x-6=0
2x=16-8
6x-6+6=0+6
2x=8
6x=6
2x+2=8+2
X=1
X=4
(107)
5x+6=11
(97)20x-14x=24
5x+6-6=11-6
5x=5
X=1
6x=6
(108)
2x-8=10
X=1
2x-8+8=10+8
(118)3x-3=3
2x=18
3x-3+3=3+3
X=9
3x=6
(109)
2.5x-8=4
3x-3=6-3
2.5x-8+8=4+8
X=2
2.5x=12
(119)5x-3x=4
2.5x-2.5=12-2.5
2x=4
X=4.8
2x+2=4+2
(110)
3
X=2
x-—=7
4
(120)2x+16=19
333
X-—+—=7+—
2x+16-16=19-16
444
2x=3
X=7.75
2x+2=3+2
(111)
3x+7=28
X=1.5
3x+7-7=28-7
(121)5x+8=19
3x=21
5x+8-8=19-8
3x-3=21-3
5x=11
X=7
5x-5=11-5
(112)
3x-7=26
X=2.2
3x-7+7=26+7
(122)14-6x=8
3x=33
14-6x+6x=8+6x
3x-3=33-3
6x+8-8=14-8
X=11
6x=6
(113)9x-x=16
X=1
8x=16
(123)15+6x=27
8x+8=16T
6x+15-15=27-15
X=2
6x=12
(114)24x+x=50
6x北=12北
25x=50
X=2
25x-25=50-25
(124)5-8x=4
X=2
5-8x+8x=4+8x
(115)1.2x-8=4
8x+4-4=5-4
1.2x-8+8=4+8
8x=1
1.2x=12
8x+8=1-8
1.2x-1.2=12-1.2
X=0.125
X=10
(125)7x+8=15
(116)3x-8=31
7x+8-8=15-8
3x-8+8=31+8
7x=7
3x=39
X=1
3x-3=39-3
(126)9-2x=1
X=13
9-2x+2x=1+2x