小学的分数方程专项练习180题

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2020年12月18日 04:09
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2020年12月18日发(作者:杜锡三)


实用标准文案



分数方程专项练习180题(有答案)

(1)+X=,
(2)X﹣=,
(3)x+x=42,
(4)=,
(5)5x﹣3×=,
精彩文档
(6)x+=,
(7)+2x=,
(8)12÷(x+)=1.2,
(9)
(10)


实用标准文案
(11)X×2=4×5,,

(12)X﹣X=,
(13)90×+x=20,
(14)0.2x+=8﹣x,
(15)X+(3X﹣16)÷=10(X+1),
(15)=,
精彩文档
(16)X﹣X=1,
(17)x+x=42
(18),
(19)﹣=1,
(20)2X+1=2,
(21)﹣x=


实用标准文案
(22)x+2=4.25
(23)x﹣(1+)=4.5
(24)37.5++x=69
(25),
(26)x=2.4×5,
(27)x﹣+=,
精彩文档
(28)x+x=121,
(29)(x+)×7=8.1,
(30)=,
(31)4x+=5,
(32)+x=9,
(33)x﹣x=,



实用标准文案
(34)x+x=11,
(35)2x+=4.625,
(36)﹣2X=,
(37)x﹣x=2,
(38)+21.5=x,
(39)﹣3x=,
精彩文档
(40)+x=,
(41)x+5×4=95
(42)x﹣x=

(43)﹣3χ=,
(44)x﹣x=0.2,
(45)y﹣4﹣y=18,



实用标准文案
(45),
(46)×3+2.75x=,
(47),
(48)5x﹣3×=,
(49)x=,
(50)x+x=39,

精彩文档
(51)7x﹣3x=,
(52)x+=,
(53)﹣=,
(54),
(54),
(55)5x﹣=34




实用标准文案
(56)x﹣×6=
(57)x+1.2x=25
(58)8﹣4.5x=,
(59)x﹣0.95×4=8.5,
(60)2x﹣=2+,
(61)x+x=,
精彩文档
(62)x﹣=2﹣,
(63)﹣=2.5,
(64)x=18,
(65)x﹣=,
(66)x﹣x=,
(67),



实用标准文案
(68),
(69)x﹣x=,
(70)1.25:0.25=,
(71)1﹣x=,
(72)x+x=,
(73)x+x=42,
精彩文档
(74)x+0.25=,
(75)x=10×,
(76)x+x=2,
(77)x×(1﹣37.5%)=,
(78)(x+)=2,
(79)x=50×,


实用标准文案
(80)x+x=42,
(81)4+x=102,
(82)X+X=,

(83)X=,
(84)(1﹣)X=,
(85)χ﹣χ=,
精彩文档
(86)χ=42×,
(87)8x﹣×3=,
(88)+=1,
(89)3x﹣×=50%,
(90)3x﹣x=,
(91)+x=,



实用标准文案
(92)﹣x=×,
(93)÷x=0.8,
(94)x+5×4=95,
(95)x﹣x﹣4=18,
(96)÷ⅹ=,
(97)x×=4,
精彩文档
(98)ⅹ=,
(99)ⅹ﹣6=7,
(100)+5x=1 10,
(101)x﹣4=60,
(102)x﹣x=9,
(103)x﹣x=3.6 ,




实用标准文案
(104)÷x=
(105)=9.1,
(106)4(+x)=,
(107)×0.25+x=,
(108)x+x=,
(109),
精彩文档
(110),
(111)+3x=,
(112)=,
(113)×﹣X=,
(114)x÷=30,
(115)﹣x=7,


实用标准文案
(116)x=×10,
(117)X﹣X=6,
(118)X﹣2=13,
(119)(1﹣)X=480,
(120)6X+X=39,
(121)2.4﹣=3.2﹣x,
精彩文档
(122),
(123),
(124)X﹣X=,
(125)6X+4.5=,
(126)80%X﹣0.6=4.2,
(127)X+X=,



实用标准文案
(128)X+X=,
(129)÷x=,
(130)x÷=42,
(131)x+=,
(132)X﹣=,
(133)X+X=3,
精彩文档
(134)X+=×8,
(134),
(135),
(136)x﹣7.5 =,
(137)2X+=1,
(138)X÷=,



实用标准文案
(139)X﹣X=1.5,
(140)x=28×,
(141)(x+3)×=48,
(142)x﹣=,
(143),
(144)2÷x=2,
精彩文档
(145)3﹣4x=2,
(146)x÷=÷
(147)÷x=÷.

(148)X﹣25%X=135,
(149)X﹣12.5×4=0,
(150)x+×=1,


实用标准文案
(151) x×(﹣)=,
(152)8×﹣1.5x=1.1,
(153)xx=2,
(154)x﹣=,

(155)x﹣x=15,
(156)X÷=,
精彩文档
(157)(X﹣)=,
(158)X+X=×,
(159)﹣x=,
(160)x+0.75﹣=0.15,
(161)2x+=4.625,
(162)÷4.8x=15.8,


实用标准文案
(163)x=14,
(164)x+x=2.1,
(165)2.7÷120%x=9,
(166)(13﹣X)×=6,
(167)x﹣21×=4
(168)1x+x=
精彩文档
(168)x×(﹣)=
(169)2+x=5,
(170)4x﹣=;
(171)x÷=
(172)x﹣x=3
(173)6x﹣3.5x=÷


实用标准文案
(174)﹣3X=
(175)
(176)5X﹣3×
(177)x××=5
(178)χ=,
(179)χ+χ=,
精彩文档
(180)x=

(181)x+15=40
(182)x÷=










专项练习参考答案:
(1)+X=,
+X﹣=﹣,

X=;


实用标准文案
(2)X﹣=,
X﹣+=+,
X=;
(3)x+x=42,
(+)x=42,
x=42,

x×=42×,

x=36;
(4)=,
4.5x=8,
4.5x÷4.5=8÷4.5,
x=
(5)5x﹣3×=,
5x﹣,
5x,
5x÷5=,
x=0.7
(6)x+=,
x+﹣=﹣,
x=,

x÷=÷,

x=;
(7)+2x=,
+2x﹣=﹣,
2x÷2=÷2,
x=;
精彩文档
(8)12÷(x+)=1.2,
12÷(x+)×(x+)=1.2×(x+),
1.2×(x+)=12,
1.2×(x+)÷1.2=12÷1.2,
x+﹣=10﹣,
x=9.
(9)
x=,

x÷=4÷,

x=;
(10)


3x﹣+=+,


3x÷3=÷3,


(11)X×2=4×5,,
X=20,

X×=20×,

X=15
(12)X﹣X=,
(1﹣)X=,
X=,

X×3=×3,

X=


实用标准文案
(13)90×+x=20,
15+x=20,
15+x﹣15=20﹣15,
x×2=5×2,

x=10;

(14)0.2x+=8﹣x,
0.2x++x=8﹣x+x,
1.8x+=8,
1.8x+﹣=8﹣,
1.8x=7.2,
1.8x÷1.8=7.2÷1.8,
x=4
(15)X+(3X﹣16)÷=10(X+1),
X+(3X﹣16)×4=10X+10,
X+12X﹣64=10X+10,
13X﹣64=10X+10,
13X﹣64+64=10X+10+64,
13X=10X+74,
13X﹣10X=10X+74﹣10X,
3X=74,
3X÷3=74÷3,
X=
(15)=,
+2x=+2x,

+2x=,

+2x﹣=﹣,

2x=1,
2x÷2=1÷2,
x=0.5
(16)X﹣X=1,
(﹣)X=1,
精彩文档
X=1,

X×2=1×2,

X=2;
(17)x+x=42
(+)x=42
x=42

x=42÷
x=36
(18),
=,

=,

=﹣,

=,

÷=÷,

x=
(19)﹣=1,
(﹣)×6=1×6,
4x+2﹣3x+3=6,
x+5=6,
x+5﹣5=6﹣5,
x=1
(20)2X+1=2,
2X+1=2,
2X÷2=÷2,
X=
(21)﹣x=
x=﹣





实用标准文案
x=﹣
x=;

(22)x+2=4.25
x=4.25﹣2
x=4﹣2
x=3﹣2
x=1;

(23)x﹣(1+)=4.5
x﹣(1+)=4.5
x﹣1=4.5
x=4.5+1
x=4+1
x=4+1
x=6;

(24)37.5++x=69
37.5+0.2+x=69.5
37.7+x=69.5
x=69.5﹣37.7
x=31.8
(25),






x=18
(26)x=2.4×5,
精彩文档
x×6=12×6,

x=72;

(27)x﹣+=,
x﹣=,
x﹣=,
x=
(28)x+x=121,
x=121,

x=132;

(29)(x+)×7=8.1,
7x+6=8.1,
7x+6﹣6=8.1﹣6,
7x÷7=2.1÷7,
x=0.3;
(30)=,
×3.6=×3.6,
x=15
(31)4x+=5,
4x+=5,
4x÷4=,
x=;
(32)+x=9,
+x=9,
x=;

(33)x﹣x=,


实用标准文案
x=,

x×6=×6,

x=5;

(34)x+x=11,
x=11,

x×=11×,

x=
(35)2x+=4.625,
2x+﹣=4.625﹣,
2x=4,
x=2,
(36)﹣2X=,
﹣2x+2x﹣=+2x﹣,
=2x,

2x=,
x=,
(37)x﹣x=2,
x=2,

x×=2×,

x=;
(38)+21.5=x,
22=x,
22×=x×.
x=
(39)﹣3x=,
14﹣48x=11,
精彩文档
48x+11=14,
48x+11﹣11=14﹣11,
48x=3,
48x÷48=3÷48,
x=;
(40)+x=,
3x+1=2,
3x+1﹣1=2﹣1,
3x=1,
3x÷3=1÷3,
x=;
(41)x+5×4=95
x+20=95

x=95﹣20

x=75

x=75÷
x=125
(42)x﹣x=,
x=,

x=,

x=;
(43)﹣3χ=,
﹣3χ+3x=+3x,
3x+=,
3x+=﹣,
3x=,
3x÷3=÷3,
x=
(44)x﹣x=0.2,


实用标准文案
(﹣)x=0.2,
x=0.2,

x=8.4;
(45)y﹣4﹣y=18,
y﹣4=18,

y﹣4+4=18+4,

y=22,

y=88
(45),
x÷=×÷,
x=;
(46)×3+2.75x=,
+2.75x=,
+2.75x﹣=﹣,
2.75x=,
2.75x÷2.75=÷2.75,
x=;

(47),
5x=4.8,
5x÷5=4.8÷5,
x=0.96;

(48)5x﹣3×=,
5x﹣=,
5x﹣+=+,
5x=,
5x÷5=÷5,
精彩文档
x=.
(49)x=,
x×=×,

x=1.5;

(50)x+x=39,
x=39,

x×=39×,
x=24;
(51)7x﹣3x=,
4x=,
4x÷4=÷4,
x=
(52)x+=,
x+﹣=﹣,

=,

x=;
(53)﹣=,
(﹣)x=,
x=,

x÷=÷,

x=
(54),
0.9+x=3.2﹣x+x,
0.9+x﹣0.9=3.2﹣0.9,
x=2.3;
(54),


实用标准文案
4.5+2.75x﹣4.5=﹣4.5,
2.75x=1,
2.75x÷2.75=12.75,
x=
(55)5x﹣=34
5x﹣+=34+
5x=34
5x÷5=34÷5
x=6.95;

(56)x﹣×6=
x﹣4.8=

x﹣4.8+4.8=+4.8

x=5.55

x÷=5.55÷

x=18.5
(57)x+1.2x=25
(+1.2)x=25,
5x=25,
5x÷5=25÷5,
x=5;
(58)8﹣4.5x=,
8﹣4.5x+4.5x=+4.5x,
+4.5x=8,

+4.5x﹣=8﹣,
4.5x=4.5,
4.5x÷4.5=4.5÷4.5,
x=1;

精彩文档
(59)x﹣0.95×4=8.5,
x﹣3.8=8.5,

x﹣3.8+3.8=8.5+3.8,

x=12.3,

x÷=12.3÷,

x=16.4;
(60)2x﹣=2+,
(2x﹣)×2=(2+)×2,
4x﹣x﹣1=4+x+1,
3x﹣1=x+5,
3x﹣1+1=x+5+1,
3x=x+6,
3x﹣x=x+6﹣x,
2x=6,
2x÷2=6÷2,
x=3
(61)x+x=,
x=;

(62)x﹣=2﹣,
x﹣x+=2﹣x﹣,
x+=﹣x,

x++x=﹣x+x,

x=,
x=,

x=,

x=1
(63)﹣=2.5,
(﹣)×12=2.5×12,
4x+8﹣3x+9=30,
x+17=30,


实用标准文案
x+17﹣17=30﹣17,
x=13
(64)x=18,
x÷=18÷,

x=27;

(65)x﹣=,
x﹣+=+,

x=,

x÷=÷,

x=;
(66)x﹣x=,
x=,

x÷=÷,

x=
(67),

x=1;

(68),
x﹣=,
x﹣+=+,
x=2
(69)x﹣x=,
x=,

x÷=÷,

x=;

精彩文档
(70)1.25:0.25=,
0.25x=1.25×1.6,
0.25x=2,
0.25x÷0.25=2÷0.25,
x=8;

(71)1﹣x=,
1﹣x+x=+x,
x+=1,

x+﹣=1﹣,
x=,

x÷=÷,
x=;
(72)x+x=,
x=,

x÷=÷,

x=.
(73)x+x=42,
(+)x=42,
x=42,

x×=42×,

x=36;

(74)x+0.25=,
x+0.25=0.25,
x+0.25﹣0.25=0.25﹣0.25,
x=0;

(75)x=10×,
x×3=×3,


实用标准文案
x=;
(76)x+x=2,
(+)x=2,
x=2,

x×=×,

x=;
(77)x×(1﹣37.5%)=,
0.625x=,
x=,

x×=×,

x=1;

(78)(x+)=2,
x+×=2,

x+=,

x+﹣=﹣,

x=,

x×4=×4,

x=;
(79)x=50×,
x=15,

x×5=15×5,

x=75;

(80)x+x=42,
(+)x=42,
精彩文档
x=42,

x×=42×,

x=36;

(81)4+x=102,
4+x﹣4=102﹣4,
x=98,

x×5=98×5,

x=490;
(82)X+X=,
x=,

x=;

(83)X=,
X+x=+x,

﹣=+x﹣,

x=;

(84)(1﹣)X=,
x=,
x=1
(85)χ﹣χ=,
χ=,

χ÷=÷,

χ=3;

(86)χ=42×,
χ÷=42×÷,








实用标准文案
χ=42××,
χ=50;

(87)8x﹣×3=,
8x﹣=,
8x﹣+=+,
8x=12,
8x÷8=12÷8,
x=1.5
(88)+=1,
x+2=4,
x+2﹣2=4﹣2,
x=2;
(89)3x﹣×=50%,
3x﹣=,
3x﹣+=+,
3x=,
3x÷3=÷3,
x=
(90)3x﹣x=,
x=,

x×=×,

x=
(91)+x=,
+x=,
x=;

(92)﹣x=×,
﹣x+x=+x,
精彩文档
=+x﹣,
x=
(93)÷x=0.8,
÷x×x=×x,

x=,

x=,

x÷=÷,

x=,
x=;
(94)x+5×4=95,
x+20=95,

x+20﹣20=95﹣20,
x=75,

x÷=75÷,

x=75×,
x=125;

(95)x﹣x﹣4=18,
(1﹣)x﹣4+4=18﹣4,
x=14,

x×4=14×4,

x=56
(96)÷ⅹ=,
÷x×x=×x,

x=,

x×2=×2,



实用标准文案
x=;
(97)x×=4,
x×÷=4÷,
x=5;

(98)ⅹ=,
ⅹ×=×,
x=3;

(99)ⅹ﹣6=7,
ⅹ﹣6+6=7+6,

ⅹ=13,

ⅹ×2=13×2,

x=26
(100)+5x=110,
x+10x=220,
11x=220,
11x÷11=220÷11,
x=20;
(101)x﹣4=60,
x﹣4+4=60+4,

x=64,

x=192;

(102)x﹣x=9,
x=9,

x=9,
x=30;

(103)x﹣x=3.6,
x=3.6,

精彩文档
x÷=3.6,

x=4.8;

(104)÷x=
÷x×x=×x,

=x,

x=4;
(105)=9.1,
×7=9.1×7,

x=63.7;
(106)4(+x)=,
+4x=,

+4x﹣=﹣,
4x=4,
x=1;

(107)×0.25+x=,
0.2+x=,
0.2+x﹣0.2=﹣0.2,
x=,

x=
(108)x+x=,
x=,

x,

x=;
(109),




实用标准文案


x=;
(110),



x=90;

(111)+3x=,
+3x﹣=﹣,
3x=,
3x÷3=÷3,
x=;

(112)=,
4x=3×1.2,
4x=3.6,
4x÷4=3.6÷4,
x=0.9
(113)×﹣X=,
﹣X=,

﹣X+X=+X,

+X=,

+X﹣=﹣,

X=0
(114)x÷=30,
x÷×=30×,
x=25;

(115)﹣x=7,
精彩文档
(﹣)x=7,
x=7,

x×=7×,

x=20;
(116)x=×10,
x=8,

x×=8×,
x=11;
(117)X﹣X=6,
X=6,

X÷=6÷,

X=15;

(118)X﹣2=13,
X﹣2+2=13+2,

X=15,

X÷=15÷,

X=40


(119)(1﹣)X=480,
X=480,

X÷=480÷,

X=540;
(120)6X+X=39,
6.5X=39,
6.5X÷6.5=39÷6.5,
X=6
(121)2.4﹣=3.2﹣x,
0.9=3.2﹣x,
0.9+x=3.2﹣x+x,


实用标准文案
0.9+x=3.2
0.9+x﹣0.9=3.2﹣0.9,
x=2.3;
(122),
x=7,
x÷=7,
x=;
(123),
+2.75x=,

+2.75x﹣=﹣,

2.75x=,
2.75x÷2.75=÷2.75,
x=
(124)X﹣X=,
X=,

X÷=÷,

X=;

(125)6X+4.5=,
6X+4.5﹣4.5=﹣4.5,
6X=2,
6X÷6=2÷6,
X=
(126)80%X﹣0.6=4.2,
0.8X﹣0.6+0.6=4.2+0.6,
0.8X=4.8,
0.8X÷0.8=4.8÷0.8,
X=6;

(127)X+X=,
精彩文档
X=,

X×=×,

X=
(128)X+X=,
X=,

X÷=÷,

X=
(129)÷x=,
x=÷,
x=;

(130)x÷=42,
x=42×,
x=9;

(131)x+=,
x+﹣=﹣,

x=,

x÷=÷,

x=
(132)X﹣=,
X﹣=,

X=1,

x=1;
(133)X+X=3,
x=3,


实用标准文案
x=3,

x=3;
(134)X+=×8,
X+=4﹣,

X=3,

X=3,

x=4
(134),
3x﹣6+6=8.25+6,
3x=15,
3x÷3=15÷3,
x=5;
(135),
(+)x=15,
x×=15×,

x=12
(136)x﹣7.5=,
x﹣7.5+7.5=+7.5,
x=13.75,

x÷=13.75÷,
x=2.75

(137)2X+=1,
2X+﹣=1﹣,
2x=,
2x÷2=÷2,
x=;
(138)X÷=,
精彩文档
X÷×=×,
x=;
(139)X﹣X=1.5,
(﹣)X=1.5,
X=1.5,

X×6=1.5×6,

X=9;

(140)x=28×,
x=32;
(141)(x+3)×=48,
0.5x+1.5=48,
0.5x+1.5﹣1.5=48﹣1.5,
0.5x=46.5,
0.5x×2=46.5×2,
x=93;
(142)x﹣=,
x=,

x×=,

x=,
x=0.5;

(143),
5x=3.2×8,
5x=25.6,
5x÷5=25.6÷5,
x=5.12
(144)2÷x=2,
2÷x×x=2×x,
22=2x÷2,
x=1;


实用标准文案

(145)3﹣4x=2,
3﹣4x+4x=2+4x,
3﹣2=2+4x﹣2,
1=4x,
1÷4=4x÷4,
x=0.25;

(146)x÷=÷
x÷=,

x=×,

x=,

x=;

(147)÷x=÷.
÷x=,

x=÷,

x=÷÷,
x=1.
(148)X﹣25%X=135,
0.75X=135,
0.75X÷0.75=135÷0.75,
X=180;
(149)X﹣12.5×4=0,
X﹣50=0,

X﹣50+50=0+50,

X=50,

X÷=50÷,

X=250

精彩文档
(150)x+×=1,
x+=1,

x+,

x,

x=;

(151) x×(﹣)=,
x=,

x×12=×12,

x=8
(152)8×﹣1.5x=1.1,
2﹣1.5x=1.1,
2﹣1.1+1.5x﹣1.5x=1.1﹣1.1+1.5x,
1.5x=0.9,
1.5x÷1.5=0.9÷1.5,
x=0.6;

(153)xx=2,
x=2,

x×2=2×2,

x=4
(154)x﹣=,
x﹣=,



x=;
(155)x﹣x=15,



x=24


实用标准文案
(156)X÷=,
X÷×=×,
x=;
(157)(X﹣)=,
(X﹣)=,
x﹣,
x=;
(158)X+X=×,
x=,

x,
x=
(159)﹣x=,
﹣x+x=+x,

+x=,

+x﹣=﹣,
x=;
(160)x+0.75﹣=0.15,
x+0.75﹣+=0.15+,
x+0.75=0.75,
x+0.75﹣0.75=0.75﹣0.75,
x=0;
(161)2x+=4.625,
2x+﹣=4.625﹣,
2x=4,
2x÷2=4÷2,
x=2
(162)÷4.8x=15.8,
精彩文档
÷4.8x×4.8x=15.8×4.8x,
75.84x=,
75.84x÷75.84=÷75.84,
x=;
(163)x=14,
x=14,

x=14,
x=12
(164)x+x=2.1,
x=2.1,

x×=2.1×,

x=1.2;
(165)2.7÷120%x=9,
2.7÷1.2x×1.2x=9×1.2x,
2.7=10.8x,
2.7÷10.8=10.8x÷10.8,
x=0.25;
(166)(13﹣X)×=6,
(13﹣X)××=6×,
13﹣X+X=8+X,
13﹣8=8+X﹣8,
X=5
(167)x﹣21×=4
x﹣14=4

x﹣14+14=4+14

x=18

x=60.

(168)1x+x=
x=



实用标准文案
x=

x=.
(168)x×(﹣)=
x×=
x×=
x=8

(169)2+x=5,
2﹣2+x=5﹣2,
x=5﹣2,
x=2;

(170)4x﹣=;
4x﹣+=+;
4x=1,
4x÷4=1÷4,
x=
(171)x÷=
x÷×=×
x=
(172)x﹣x=3
x=3

x×=3×

x=8
(173)6x﹣3.5x=÷
2.5x=×
2.5x=0.75
2.5x÷2.5=0.75÷2.5
x=0.3
精彩文档
(174)﹣3X=
﹣3X+3X=+3X

=+3X

﹣=+3X﹣

=3X

÷3=3X÷3

X=;
(175)
x=

x÷=÷

x=;
(176)5X﹣3×
5X﹣2.1=
5X﹣2.1+2.1=+2.1
5X=3.5
5X÷5=3.5÷5
X=0.7;
(177)x××=5
x=5

x=5
x=25
(178)χ=,
χ=,

x=;

(179)χ+χ=,
x=,



实用标准文案
x=,


÷
x=
(180)

x=
=

x=1.8;

(181)x+15=40
x+15﹣15=40﹣15

x=25

x÷=25÷

x=35;

(182)x÷=
x÷×=

×
x=
精彩文档

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