(-1.5)Ã(-9)-12÷(-4)
56÷(-7)-2÷5+0.4
3.57Ã29÷(-4)
5.6÷(-2.8)-(-50)÷2
[9.6+(-7.3)]Ã[(-5)-(-7)]
12.3÷[5.6+(-1.2)]
(-75.6)÷(1/4+1/5)
9.5Ã(-9.5)÷1/2
95.77÷(-2)+(-34.6)
(-51.88)÷2-(-5)Ã24
1.25*ï¼-3ï¼+70*ï¼-5ï¼+5*ï¼-3ï¼+25
9999*3+101*11*(101-92)
(23/4-3/4)*(3*6+2)
3/7 Ã 49/9 - 4/3
8/9 Ã 15/36 + 1/27
12Ã 5/6 â 2/9 Ã3
8Ã 5/4 + 1/4
6÷ 3/8 â 3/8 ÷6
4/7 Ã 5/9 + 3/7 Ã 5/9
5/2 -ï¼ 3/2 + 4/5 ï¼
7/8 + ï¼ 1/8 + 1/9 ï¼
9 Ã 5/6 + 5/6
3/4 Ã 8/9 - 1/3
7 Ã 5/49 + 3/14
6 Ãï¼ 1/2 + 2/3 ï¼
8 Ã 4/5 + 8 Ã 11/5
31 Ã 5/6 â 5/6
9/7 - ï¼ 2/7 â 10/21 ï¼
5/9 Ã 18 â 14 Ã 2/7
4/5 Ã 25/16 + 2/3 Ã 3/4
14 Ã 8/7 â 5/6 Ã 12/15
17/32 â 3/4 Ã 9/24
3 Ã 2/9 + 1/3
5/7 Ã 3/25 + 3/7
3/14 Ã 2/3 + 1/6
1/5 Ã 2/3 + 5/6
9/22 + 1/11 ÷ 1/2
5/3 Ã 11/5 + 4/3
45 Ã 2/3 + 1/3 Ã 15
7/19 + 12/19 Ã 5/6
1/4 + 3/4 ÷ 2/3
8/7 Ã 21/16 + 1/2
101 Ã 1/5 â 1/5 Ã 21
50ï¼160÷40
120-144÷18+35
347+45Ã2-4160÷52
37Ãï¼58+37ï¼Ã·ï¼64-9Ã5ï¼
95÷ï¼64-45ï¼
178-145÷5Ã6+42
812-700÷ï¼9+31Ã11ï¼
85+14Ãï¼14+208÷26ï¼
120-36Ã4÷18+35
ï¼58+37ï¼Ã·ï¼64-9Ã5ï¼
(6.8-6.8Ã0.55)÷8.5
0.12à 4.8÷0.12Ã4.8
ï¼3.2Ã1.5+2.5ï¼Ã·1.6
6-1.6÷4= 5.38+7.85-5.37=
7.2÷0.8-1.2Ã5= 6-1.19Ã3-0.43=
6.5Ãï¼4.8-1.2Ã4ï¼=
5.8Ãï¼3.87-0.13ï¼+4.2Ã3.74
32.52-ï¼6+9.728÷3.2ï¼Ã2.5
[ï¼7.1-5.6ï¼Ã0.9-1.15] ÷2.5
5.4÷[2.6Ãï¼3.7-2.9ï¼+0.62]
12Ã6÷ï¼12-7.2ï¼-6
12Ã6÷7.2-6
0.68Ã1.9+0.32Ã1.9
58+370ï¼Ã·ï¼64-45ï¼
420+580-64Ã21÷28
136+6Ãï¼65-345÷23ï¼
15-10.75Ã0.4-5.7
18.1ï¼ï¼3ï¼0.299÷0.23ï¼Ã1
(6.8-6.8Ã0.55)÷8.5
0.12à 4.8÷0.12Ã4.8
ï¼3.2Ã1.5+2.5ï¼Ã·1.6
3.2Ã6+ï¼1.5+2.5ï¼Ã·1.6
0.68Ã1.9+0.32Ã1.9
10.15-10.75Ã0.4-5.7
5.8Ãï¼3.87-0.13ï¼+4.2Ã3.74
32.52-ï¼6+9.728÷3.2ï¼Ã2.5
[ï¼7.1-5.6ï¼Ã0.9-1.15] ÷2.5
5.4÷[2.6Ãï¼3.7-2.9ï¼+0.62]
12Ã6÷ï¼12-7.2ï¼-6
12Ã6÷7.2-6
33.02ï¼ï¼148.4ï¼90.85ï¼Ã·2.5
76.(25%-695%-12%)*36
77./4*3/5+3/4*2/5
78.1-1/4+8/9/7/9
79.+1/6/3/24+2/21
80./15*3/5
81.3/4/9/10-1/6
82./3+1/2)/5/6-1/3]/1/7
83./5+3/5/2+3/4
84.(2-2/3/1/2)]*2/5
85.+5268.32-2569
86.3+456-52*8
87.5%+6325
88./2+1/3+1/4
89+456-78
5%+. 3/7 Ã 49/9 - 4/3
9 Ã 15/36 + 1/27
2Ã 5/6 â 2/9 Ã3
3Ã 5/4 + 1/4
94÷ 3/8 â 3/8 ÷6
95/7 Ã 5/9 + 3/7 Ã 5/9
6/2 -ï¼ 3/2 + 4/5 ï¼
8 + ï¼ 1/8 + 1/9 ï¼
8 Ã 5/6 + 5/6
1/4 Ã 8/9 - 1/3
10 Ã 5/49 + 3/14
1.5 Ãï¼ 1/2 + 2/3 ï¼
2ï¼9 Ã 4/5 + 8 Ã 11/5
3.1 Ã 5/6 â 5/6
4/7 - ï¼ 2/7 â 10/21 ï¼
19 Ã 18 â 14 Ã 2/7
5 Ã 25/16 + 2/3 Ã 3/4
4 Ã 8/7 â 5/6 Ã 12/15
7/32 â 3/4 Ã 9/24
2/3÷1/2ï¼1/4Ã2/5
2ï¼6/13÷9/26ï¼2/3
2/9ï¼1/2÷4/5ï¼3/8
10÷5/9ï¼1/6Ã4
1/2Ã2/5ï¼9/10÷9/20
5/9Ã3/10ï¼2/7÷2/5
1/2ï¼1/4Ã4/5ï¼1/8
3/4Ã5/7Ã4/3ï¼1/2
23ï¼8/9Ã1/27÷1/27
8Ã5/6ï¼2/5÷4
1/2ï¼3/4Ã5/12Ã4/5
8/9Ã3/4ï¼3/8÷3/4
5/8÷5/4ï¼3/23÷9/11
1.2Ã2.5+0.8Ã2.5
8.9Ã1.25-0.9Ã1.25
12.5Ã7.4Ã0.8
9.9Ã6.4-ï¼2.5+0.24ï¼
ï¼27ï¼ 6.5Ã9.5+6.5Ã0.5
0.35Ã1.6+0.35Ã3.4
0.25Ã8.6Ã4
6.72-3.28-1.72
0.45+6.37+4.55
5.4+6.9Ã3-ï¼25-2.5ï¼
2Ã41846-620-380
4.8Ã46+4.8Ã54
0.8+0.8Ã2.5
1.25Ã3.6Ã8Ã2.5-12.5Ã2.4
28Ã12.5-12.5Ã20
23.65-ï¼3.07+3.65ï¼
ï¼4+0.4Ã0.25ï¼8Ã7Ã1.25
1.65Ã99+1.65
27.85-ï¼7.85+3.4ï¼
48Ã1.25+50Ã1.25Ã0.2Ã8
7.8Ã9.9+0.78
(1010+309+4+681+6ï¼Ã12
3Ã9146Ã782Ã6Ã854
5.15Ã7/8+6.1-0.60625
3/7 Ã 49/9 - 4/3
8/9 Ã 15/36 + 1/27
12Ã 5/6 â 2/9 Ã3
8Ã 5/4 + 1/4
6÷ 3/8 â 3/8 ÷6
4/7 Ã 5/9 + 3/7 Ã 5/9
5/2 -ï¼ 3/2 + 4/5 ï¼
7/8 + ï¼ 1/8 + 1/9 ï¼
9. 9 Ã 5/6 + 5/6
3/4 Ã 8/9 - 1/3
7 Ã 5/49 + 3/14
6 Ãï¼ 1/2 + 2/3 ï¼
8 Ã 4/5 + 8 Ã 11/5
31 Ã 5/6 â 5/6
9/7 - ï¼ 2/7 â 10/21 ï¼
5/9 Ã 18 â 14 Ã 2/7
4/5 Ã 25/16 + 2/3 Ã 3/4
14 Ã 8/7 â 5/6 Ã 12/15
17/32 â 3/4 Ã 9/24
3 Ã 2/9 + 1/3
5/7 Ã 3/25 + 3/7
3/14 Ã 2/3 + 1/6
1/5 Ã 2/3 + 5/6
9/22 + 1/11 ÷ 1/2
5/3 Ã 11/5 + 4/3
45 Ã 2/3 + 1/3 Ã 15
7/19 + 12/19 Ã 5/6
1/4 + 3/4 ÷ 2/3
8/7 Ã 21/16 + 1/2
101 Ã 1/5 â 1/5 Ã 21
50ï¼160÷40 ï¼58+370ï¼Ã·ï¼64-45ï¼
120-144÷18+35
347+45Ã2-4160÷52
ï¼58+37ï¼Ã·ï¼64-9Ã5ï¼
95÷ï¼64-45ï¼
178-145÷5Ã6+42 420+580-64Ã21÷28
812-700÷ï¼9+31Ã11ï¼ ï¼136+64ï¼Ãï¼65-345÷23ï¼
85+14Ãï¼14+208÷26ï¼
ï¼284+16ï¼Ãï¼512-8208÷18ï¼
120-36Ã4÷18+35
ï¼58+37ï¼Ã·ï¼64-9Ã5ï¼
(6.8-6.8Ã0.55)÷8.5
0.12à 4.8÷0.12Ã4.8
ï¼3.2Ã1.5+2.5ï¼Ã·1.6 ï¼2ï¼3.2Ãï¼1.5+2.5ï¼Ã·1.6
6-1.6÷4
5.38+7.85-5.37
7.2÷0.8-1.2Ã5
6-1.19Ã3-0.43
47.6.5Ãï¼4.8-1.2Ã4ï¼
0.68Ã1.9+0.32Ã1.9
48.10.15-10.75Ã0.4-5.7
49.5.8Ãï¼3.87-0.13ï¼+4.2Ã3.74
50.32.52-ï¼6+9.728÷3.2ï¼Ã2.5
51.[ï¼7.1-5.6ï¼Ã0.9-1.15] ÷2.5
52.5.4÷[2.6Ãï¼3.7-2.9ï¼+0.62]
53.12Ã6÷ï¼12-7.2ï¼-6 ï¼4ï¼12Ã6÷7.2-6
102Ã(-4.5)-(-3)Ã(-5) ÷2
7.8Ã6.9ï¼2.2Ã6.9
(-2)+2-(-52)Ã(-1) Ã5+87÷(-3)Ã(-1)
5.6Ã0.258Ãï¼20ï¼1.25ï¼
(-7.1) Ãã(-3)Ã(-5)ã÷2
-2.5Ã(-4.8)Ã(0.09)÷(-0.27)
127+352+73+44Ã(-2)
89Ã276+(-135)-33
25Ã71+75÷29 -88÷(-2)
243+89+111+57
9405-2940÷28Ã21
920-1680÷40÷7
690+47Ã52-398
148+3328÷64-75
360Ã24÷32+730
2100-94+48Ã54
51+ï¼2304-2042ï¼Ã23
4215+ï¼4361-716ï¼Ã·81
ï¼247+18ï¼Ã27÷25
36-720÷ï¼360÷18ï¼
1080÷ï¼63-54ï¼Ã80
ï¼528+912ï¼Ã5-6178
8528÷41Ã38-904
264+318-8280÷69
ï¼174+209ï¼Ã26- (9000^0)
814-ï¼278+322ï¼Ã·15
1406+735Ã9÷45
3168-7828÷38+504
796-5040÷ï¼630÷7ï¼
285+ï¼3000-372ï¼Ã·36
1+5/6-19/12
3x(-9)+7x(-9)
(-54)x1/6x(-1/3)
1.18.1ï¼ï¼3ï¼0.299÷0.23ï¼Ã1
2.(6.8-6.8Ã0.55)÷8.5
3.0.12à 4.8÷0.12Ã4.84
3.2Ã1.5+2.5÷(-1.6)
ï¼-2ï¼Ã3.2Ãï¼1.5+2.5ï¼Ã·1.6
5.6-1.6÷4+(6.8-9)
5.38+7.85-5.37÷89
6.7.2÷0.8-1.2Ã5
6-1.19Ã3-0.43
7.6.5Ãï¼4.8-1.2Ã4ï¼
0.68Ã1.9+0.32Ã1.9
8.10.15-10.75Ã0.4-5.7
9.5.8Ãï¼3.87-0.13ï¼
(-8.01)+4.2Ã3.74
10.32.52-ï¼6+9.728÷3.2ï¼Ã2.5
11.[ï¼7.1-5.6ï¼Ã0.9-1.15] ÷2.5
12.5.4÷[2.6Ãï¼3.7-2.9ï¼+0.62]
13.12Ã6÷ï¼12-7.2ï¼-6
14.12Ã6÷7.2-6
15.33.02ï¼ï¼148.4ï¼90.85ï¼Ã·2.5
(-5)-252Ãï¼-78ï¼
(-6) Ã(-2)+3÷ï¼5+50ï¼
7-7+3-6-ï¼-90ï¼
(-8)(-3)Ã(-8)Ã25
(7+13) ÷(-616)÷(-28)
ï¼8+14-100-27ï¼Ã·4
(-15) ÷(-1)-101÷10
16÷0.21Ã(-8) Ã(4.1+5.9)
(-10) Ã(-2) Ã4÷{-9÷[6+(-5.67)]}
(-18)(-4)2Ã[8.01Ã(-3.14)
9-32{-890-[79+8.1] Ã9}
(-20)-23+(-9) Ã9.42
(-24)3.4Ã104÷(-5) Ã200.96
[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3)
5+21*8/2-6-59
68/21-8-11*8+61
-2/9-7/9-56
4.6-(-3/4+1.6-4-3/4)
1/2+3+5/6-7/12
[2/3-4-1/4*(-0.4)]/1/3+2
22+(-4)+(-2)+4*3
-2*8-8*1/2+8/1/8
(2/3+1/2)/(-1/12)*(-12)
(-28)/(-6+4)+(-1) +â9
2/(-2)+0/7-(-8)*(-2)
(1/4-5/6+1/3+2/3)/1/2
18-6/(-3)*(-2) Ã2^7
(5+3/8*8/30/(-2)- â36
(-84)/2*(-3)/(-6)
1/2*(-4/15)/2/3
1+2+3+4+......+100000
1/1+1/2+1/3+......1/50
1+1/2+1/4+1/8+1/16+......1/512
3+9+27+81+243+......9999
1+1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/72+1/90
8ï¼2Ã32ï¼(-2Ã3)2
â12 à (-3)2ï¼(-1/2)2003Ã(-2)2002÷2/9
(0.5-3/2)÷3/1Ã[-2-(-3)3]ï¼â£1/8ï¼0.52â£
[-38-(-1)7+(-3)8]Ã-53
a^3-2b^3+ab(2a-b)-âa-b^2
15*(-8)+2b^2+
(x^2+y^2)^2-4y(x^2+y^2)+4y^2
6-3a^8-(-5^2-6)
(x^2+2x)^2+3(x^2+2x)+x^2+2x+3
(a+1)(a+2)+(2a+1)(a-2)-12
x^2(y+z)^2-2xy(x-z)(y+z)+y^2(x-z)^2
3(a+2)^2+28(a+2)-20
(a+b)^2-(b-c)^2+a^2-c^2
8x(x+1)(x^2+x-1)-2
x^2(x-1)^2-3(x^2-x)-56
14a(a-b)+(a-b)^2
11.-ab(a-b)^+a(b-a)^2
12.3ï¼x+2ï¼ï¼2x=5ï¼4x
13.5ï¼x+2aï¼-a=2ï¼b-2xï¼+4a
3.14*3.42 (2)972*3.14*1/4
[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3)
5+21*8/2-â121-59
68/21-8-11*8+61
-2/9-7/9-56
4.6-(-3/4+1.6-4-3/4)
1/2+3+5/6-7/12
[2/3-4-1/4*(-0.4)]/1/3+2
22+(-4)+(-2)+4*3
-2*8-8*1/2+8/1/8
(2/3+1/2)/(-1/12)*(-12)
(-28)/(-6+4)+(-1)
2/(-2)+0/7-(-8)*(|-2|-5^4)
(1/3+2/3)/1/2-|-9+(-5)|
18-6/(-3)*(-2)-|-9|
(5+3/8*8/30/(-2)-3
(-84)/2*(-3)/(-6)
1/2*(-4/15)/2/3
|-3x+2y-5x-7y|-|-9x+2y|
-5+21*8/2-6-59
68/21-8-11*8+61
-2/9-7/9-56
4.6-(-3/4+1.6-4-3/4)
1/2+3+5/6-7/12
[2/3-4-1/4*(-0.4)]/1/3+2
22+(-4)+(-2)+4*3-â64-5^2
-2*8-8*1/2+8/1/8
(2/3+1/2)/(-1/12)*(-12)
(-28)/(-6+4)+(-1)
2/(-2)+0/7-(-8)*(-2)
(1/4-5/6+1/3+2/3)/1/2
18-6/(-3)*(-2)
(5+3/8*8/30/(-2)-3
(-84)/2*(-3)/(-6)
1/2*(-4/15)/2/3+â9
-3x+2y-5x-7y+
-5+21*8/2-6-59
68/21-8-11*8+61
-2/9-7/9-56
4.6-(-3/4+1.6-4-3/4)
1/2+3+5/6-7/12
[2/3-4-1/4*(-0.4)]/1/3+2
22+(-4)+(-2)+4*3
-2*8-8*1/2+8/1/8
(2/3+1/2)/(-1/12)*(-12)
(-28)/(-6+4)+(-1)
2/(-2)+0/7-(-8)*(-2)
(1/4-5/6+1/3+2/3)/1/2
18-6/(-3)*(-2)
(5+3/8*8/30/(-2)-3
(-84)/2*(-3)/(-6)
1/2*(-4/15)/2/3
-3x+2y-5x-7y-(-3^2+5^7)
-1+2-3+4-5+6-7+â9
-50-28+(-24)-(-22)
-19.8-(-20.3)-(+20.2)-10.8;
0.25- +(-1 )-(+3 ).
-1-23.33-(+76.76)
1-2*2*2*2-5^2+(6^2-5^2)
(-6-24.3)-(-12+9.1)+(0-2.1)
-1+8-7+5^7-(-5+â9)
125*3+125*5+25*3+25
9999*3+101*11*(101-92)
(23/4-3/4)*(3*6+2)
3/7 Ã 49/9 - 4/3
8/9 Ã 15/36 + 1/27
12x*5/6yâ2/9y*|3x-2y|
8Ã5/4+1/4*|-7-8|
6÷ 3/8 â 3/8 ÷6
4/7 Ã 5/9 + 3/7 Ã 5/9
5/2 -ï¼ 3/2 + 4/5 ï¼
7/8 + ï¼ 1/8 + 1/9 ï¼
9 Ã 5/6 + 5/6
3/4 Ã 8/9 - 1/3
7 Ã 5/49 + 3/14
6 Ãï¼ 1/2 + 2/3 ï¼
8 Ã 4/5 + 8 Ã 11/5
31 Ã 5/6 â 5/6
9/7 - ï¼ 2/7 â 10/21 ï¼
5/9 Ã 18 â 14 Ã 2/7
4/5 Ã 25/16 + 2/3 Ã 3/4
14 Ã 8/7 â 5/6 Ã 12/15
17/32 â 3/4 Ã 9/24
3^45 Ã 2/9 + 1/3
5/7 Ã 3/25 + 3/7
3/14 Ã2/3 + 1/6
1/5 Ã 2/3 + 5/6
5/3 Ã 11/5 + 4/3
9/22+1/11÷1/2-â169
45^8 Ã 2/3 + 1/3 Ã 15
7/19 + 12/19 Ã 5/6
1/4 + 3/4 ÷ 2/3
8/7 Ã 21/16 + 1/2
101^4Ã(-1/5â1/5Ã21)
50ï¼â160÷40^5
120-144÷18+35
347+45Ã2-4160÷52
37^2ï¼58+37ï¼Ã·ï¼64-9Ã5ï¼
95÷ï¼64-45ï¼
178-145÷5Ã6+42
812-700÷ï¼9+31Ã11ï¼
85+14Ãï¼14+208÷26ï¼
120-36Ã4÷18+35
ï¼58+37ï¼Ã·ï¼64-9Ã5ï¼
(6.8-6.8Ã0.55)÷8.5
0.12à 4.8÷0.12Ã4.8
ï¼3.2Ã1.5+2.5ï¼Ã·1.6
6-1.6÷4= 5.38+7.85-5.37=
7.2÷0.8-1.2Ã5= 6-1.19Ã3-0.43=
6.5Ãï¼4.8-1.2Ã4ï¼=
5.8Ãï¼3.87-0.13ï¼+4.2Ã3.74
32.52-ï¼6+9.728÷3.2ï¼Ã2.5
[ï¼7.1-5.6ï¼Ã0.9-1.15] ÷2.5
5.4÷[2.6Ãï¼3.7-2.9ï¼+0.62]
12Ã6÷ï¼12-7.2ï¼-6
12Ã6÷7.2-6
0.68Ã1.9+0.32Ã1.9
58+370ï¼Ã·ï¼64-45ï¼
420+580-64Ã21÷28
136+6Ãï¼65-345÷23ï¼
15-10.75Ã0.4-5.7
18.1ï¼ï¼3ï¼0.299÷0.23ï¼Ã1
(6.8-6.8Ã0.55)÷8.5
0.12à 4.8÷0.12Ã4.8
ï¼3.2Ã1.5+2.5ï¼Ã·1.6
3.2Ã6+ï¼1.5+2.5ï¼Ã·1.6
0.68Ã1.9+0.32Ã1.9
10.15-10.75Ã0.4-5.7
5.8Ãï¼3.87-0.13ï¼+4.2Ã3.74
32.52-ï¼6+9.728÷3.2ï¼Ã2.5
[ï¼7.1-5.6ï¼Ã0.9-1.15] ÷2.5
5.4÷[2.6Ãï¼3.7-2.9ï¼+0.62]
12Ã6÷ï¼12-7.2ï¼-6
12Ã6÷7.2-6
33.02ï¼ï¼148.4ï¼90.85ï¼Ã·2.5
76.(25%-695%-12%)*36
7/4*3/5+3/4*2/5
1-1/4+8/9/7/9
7+1/6/3/24+2/21
8/15*3/5
3/4/9/10-1/6
8/3+1/2)/5/6-1/3]/1/7
9/5+3/5/2+3/4
8^6(2-2/3/1/2)]*2/5
8+5268.32-2569
3+456-52*8
87.5%+6325
8/2+1/3+1/4
89+456-78
5%+. 3/7 Ã 49/9 - 4/3
9 Ã 15/36 + 1/27
2Ã 5/6 â 2/9 Ã3
3Ã 5/4 + 1/4
94÷ 3/8 â 3/8 ÷6
95/7 Ã 5/9 + 3/7 Ã 5/9
6/2 -ï¼ 3/2 + 4/5 ï¼
8 + ï¼ 1/8 + 1/9 ï¼
8 Ã 5/6 + 5/6
1/4 Ã 8/9 - 1/3
10Ã 5/49 + 3/14
1.5 Ãï¼ 1/2 + 2/3 ï¼
2ï¼9 Ã 4/5 + 8 Ã 11/5
3.1 Ã 5/6 â 5/6
4/7 - ï¼ 2/7 â 10/21 ï¼
19 Ã 18 â 14 Ã 2/7
5 Ã 25/16 + 2/3 Ã 3/4
4 Ã 8/7 â 5/6 Ã 12/15
7/32 â 3/4 Ã 9/24
2/3÷1/2ï¼1/4Ã2/5
2ï¼6/13÷9/26ï¼2/3
2/9ï¼1/2÷4/5ï¼3/8
10÷5/9ï¼1/6Ã4
1/2Ã2/5ï¼9/10÷9/20
5/9Ã3/10ï¼2/7÷2/5
1/2ï¼1/4Ã4/5ï¼1/8
3/4Ã5/7Ã4/3ï¼1/2
23ï¼8/9Ã1/27÷1/27
18Ã5/6ï¼2/5÷4
11/2ï¼3/4Ã5/12Ã4/5
8/9Ã3/4ï¼3/8÷3/4
5/8÷5/4ï¼3/23÷9/11
1.2Ã2.5+0.8Ã2.5
8.9Ã1.25-0.9Ã1.25
12.5Ã7.4Ã0.8
9.9Ã6.4-ï¼2.5+0.24ï¼
6.5Ã9.5+6.5Ã0.5
0.35Ã1.6+0.35Ã3.4
0.25Ã8.6Ã4
6.72-3.28-1.72
0.45+6.37+4.55
5.4+6.9Ã3-ï¼25-2.5ï¼
2Ã41846-620-380
4.8Ã46+4.8Ã54
0.8+0.8Ã2.5
1.25Ã3.6Ã8Ã2.5-12.5Ã2.4
28Ã12.5-12.5Ã20
23.65-ï¼3.07+3.65ï¼
ï¼4+0.4Ã0.25ï¼8Ã7Ã1.25
1.65Ã99+1.65
27.85-ï¼7.85+3.4ï¼
48Ã1.25+50Ã1.25Ã0.2Ã8
7.8Ã9.9+0.78
(1010+309+4+681+6ï¼Ã12
3Ã9146Ã782Ã6Ã854
5.15Ã7/8+6.1-0.60625
3/7 Ã 49/9 - 4/3
8/9 Ã 15/36 + 1/27
12Ã 5/6 â 2/9 Ã3
8Ã 5/4 + 1/4
6÷ 3/8 â 3/8 ÷6
4/7 Ã 5/9 + 3/7 Ã 5/9
5/2 -ï¼ 3/2 + 4/5 ï¼
7/8 + ï¼ 1/8 + 1/9 ï¼
9 Ã 5/6 + 5/6
3/4 Ã 8/9 - 1/3
7 Ã 5/49 + 3/14
6 Ãï¼ 1/2 + 2/3 ï¼
8 Ã 4/5 + 8 Ã 11/5
31 Ã 5/6 â 5/6
9/7 - ï¼ 2/7 â 10/21 ï¼
5/9 Ã 18 â 14 Ã 2/7
4/5 Ã 25/16 + 2/3 Ã 3/4
14 Ã 8/7 â 5/6 Ã 12/15
17/32 â 3/4 Ã 9/24
3 Ã 2/9 + 1/3
5/7 Ã 3/25 + 3/7
3/14 Ã 2/3 + 1/6
1/5 Ã 2/3 + 5/6
9/22 + 1/11 ÷ 1/2
5/3 Ã 11/5 + 4/3
45 Ã 2/3 + 1/3 Ã 15
7/19 + 12/19 Ã 5/6
1/4 + 3/4 ÷ 2/3
8/7 Ã 21/16 + 1/2
101 Ã 1/5 â 1/5 Ã 21
50ï¼160÷40 ï¼58+370ï¼Ã·ï¼64-45ï¼
120-144÷18+35
347+45Ã2-4160÷52
ï¼58+37ï¼Ã·ï¼64-9Ã5ï¼
95÷ï¼64-45ï¼
178-145÷5Ã6+42 420+580-64Ã21÷28
812-700÷ï¼9+31Ã11ï¼
ï¼136+64ï¼Ãï¼65-345÷23ï¼
85+14Ãï¼14+208÷26ï¼
ï¼284+16ï¼Ãï¼512-8208÷18ï¼
120-36Ã4÷18+35
(58+37ï¼Ã·ï¼64-9Ã5ï¼
(6.8-6.8Ã0.55)÷8.5
0.12à 4.8÷0.12Ã4.8
ï¼3.2Ã1.5+2.5ï¼Ã·1.6
3.2Ãï¼1.5+2.5ï¼Ã·1.6
6-1.6÷4= 5.38+7.85-5.37=
7.2÷0.8-1.2Ã5= 6-1.19Ã3-0.43=
6.5Ãï¼4.8-1.2Ã4ï¼= 0.68Ã1.9+0.32Ã1.9
10.15-10.75Ã0.4-5.7
5.8Ãï¼3.87-0.13ï¼+4.2Ã3.74
32.52-ï¼6+9.728÷3.2ï¼Ã2.5
[ï¼7.1-5.6ï¼Ã0.9-1.15] ÷2.5
5.4÷[2.6Ãï¼3.7-2.9ï¼+0.62]
12Ã6÷ï¼12-7.2ï¼-6 ï¼4ï¼12Ã6÷7.2-6
102^2Ã4.5+8^5-â529
7.8Ã6.9ï¼2.2Ã6.9
5.6Ã0.25
8Ãï¼20ï¼1.25ï¼
127+352+73+44
89+276+135+33
25+71+75+29 +88
243+89+111+57
9405-2940÷28Ã21
920-1680÷40÷7
690+47Ã52-398
148+3328÷64-75
360Ã24÷32+730
2100-94+48Ã54
51+ï¼2304-2042ï¼Ã23
4215+ï¼4361-716ï¼Ã·81
ï¼247+18ï¼Ã27÷25
36-720÷ï¼360÷18ï¼
1080÷ï¼63-54ï¼Ã80
ï¼528+912ï¼Ã5-6178
8528÷41Ã38-904
264+318-8280÷69
ï¼174+209ï¼Ã26- 9000
814-ï¼278+322ï¼Ã·15
1406+735Ã9÷45
3168-7828÷38+504
796-5040÷ï¼630÷7ï¼
285+ï¼3000-372ï¼Ã·36
1+5/6-19/12
3x(-9)+7x(-9
(-54)x1/6x(-1/3)
18.1ï¼ï¼3ï¼0.299÷0.23ï¼Ã1
(6.8-6.8Ã0.55)÷8.5
0.12à 4.8÷0.12Ã4.8
ï¼3.2Ã1.5+2.5ï¼Ã·1.6
3.2Ãï¼1.5+2.5ï¼Ã·1.6
5.6-1.6÷4
5.38+7.85-5.37
7.2÷0.8-1.2Ã5
6-1.19Ã3-0.43
6.5Ãï¼4.8-1.2Ã4ï¼
0.68Ã1.9+0.32Ã1.9
115-10.75Ã0.4-5.7
5.8Ãï¼3.87-0.13ï¼+4.2Ã3.74
32.52-ï¼6+9.728÷3.2ï¼Ã2.5
[ï¼7.1-5.6ï¼Ã0.9-1.15] ÷2.5
5.4÷[2.6Ãï¼3.7-2.9ï¼+0.62]
12Ã6÷ï¼12-7.2ï¼-6
12Ã6÷7.2-6
33.02ï¼ï¼148.4ï¼90.85ï¼Ã·2.5
äº.解æ¹ç¨
2x=7(x-5)
8(3x+3)=240
4.74+4x-2.5x=8.1
(2.81+x)÷2.81=1
15x-30=16(x-2)
(-3)^3-3^3
(-1)^2-5.6
2^2+3^3-4^4
(2^4-3^2)^3-5^5
[(1.6^2-2^3)-2.1]^2
(5.66Ã2)^2-15^2
(-15)^x=225,x=?
[(-4)^2-4^2]Ã2^2
[(-5.6)^2+3]^2
[5.6^2+(-5.6)^2]Ã(-1)^2
3x+28-x=56
1.5x+6=3.75
2(3.6x+2.8)=-1.6
9.5x+9.5=19
18(x-35)=-36
x+7-(-36+8^2)/2=8+7^4/3
a-7-98+7a=3.2*5a
89/2+35/6x=3*9+2^3/5+7x
3X+189/3=521/2
4Y+119*^3=22/11
3X*189=5*4^5/3
8Z/6=458/5
3X+77=59
4Y-6985=81
87X*13=5
7Z/93=41
15X+863-65X=54
58Y*55=27489
7(2x-1)-3(4x-1)=4(3x+2)-1
(5y+1)+ (1-y)= (9y+1)+ (1-3y)
[-6(-7^4*8)-4]=x+2
20%+(1-20%)(320-x)=320Ã40%
2(x-2)+2=x+1
2(x-2)-3(4x-1)=9(1-x)
11x+64-2x=100-9x
15-(8-5x)=7x+(4-3x)
3(x-7)-2[9-4(2-x)]=22
3/2[2/3(1/4x-1)-2]-x=2
2x+7^2=157
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â -3x-6x2=7( )
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â£3y-4=2y+1. ( )
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â 解æ¹ç¨3y-4=y+3
解ï¼3y-y=3+4,2y=7,y=3.5
â¡è§£æ¹ç¨ï¼0.4x-3=0.1x+2
解ï¼0.4x+0.1x=2-3;0.5x=-1,x=-2
â¢è§£æ¹ç¨
解ï¼5x+15-2x-2=10,3x=-3,x=-1;
â£è§£æ¹ç¨
解ï¼2x-4+5-5x=-1,-3x=-2,x= .( )
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A.æ¹ç¨ä¸¤è¾¹é½ä¹ä»¥4ï¼å¾3ï¼ x-1ï¼=12
B.å»æ¬å·ï¼å¾x- =3
C.两边åé¤ä»¥ ï¼å¾ x-1=4
D.æ´çï¼å¾
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A.2-2(2x-4)=-(x-7) B.12-2(2x-4)=-x-7
C.12-2(2x-4)=-(x-7) D.以ä¸çæ¡åä¸å¯¹
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Aï¼13 Bï¼ Cï¼8 Dï¼
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A.4x+2=2x-(-2-9)
Bï¼2{3[4(5x-1)-8]-2}=8
C.4x+9 =6x+6
4)解çä¸ååé¢ï¼
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1ã-9(x-2)-y(x-5)
ï¼1ï¼åç®æ´ä¸ªå¼åã
ï¼2ï¼å½x=5æ¶ï¼æ±yç解ã
2ã5(9+a)Ãb-5(5+b)Ãa
ï¼1ï¼åç®æ´ä¸ªå¼åã
ï¼2ï¼å½a=5/7æ¶ï¼æ±å¼åçå¼ã
3ã62g+62(g+b)-b
ï¼1ï¼åç®æ´ä¸ªå¼åã
ï¼2ï¼å½g=5/7æ¶ï¼æ±bç解ã
4ã3(x+y)-5(4+x)+2y
ï¼1ï¼åç®æ´ä¸ªå¼åã
5ã(x+y)(x-y)
ï¼1ï¼åç®æ´ä¸ªå¼åã
6ã2ab+aÃa-b
ï¼1ï¼åç®æ´ä¸ªå¼åã
7ã5.6x+4(x+y)-y
ï¼1ï¼åç®æ´ä¸ªå¼åã
8ã6.4(x+2.9)-y+2(x-y)
ï¼1ï¼åç®æ´ä¸ªå¼åã
9ã(2.5+x)(5.2+y)
ï¼1ï¼åç®æ´ä¸ªå¼åã
10ã9.77x-(5-a)x+2a
ï¼1ï¼åç®æ´ä¸ªå¼åã
æx=-2, y=0.1, a=4, b=1代å
¥ä¸åå¼åæ±å¼
3(x+2)-2(x-3)
5(5+a)Ãb-5(5+b)Ãa
62a+62(a+b)-b
3(x+y)-5(4+x)+2y
(x+y)(x-y)
2ab+aÃa-b
5.6x+4(x+y)-y
6.4(x+2.9)-y+2(x-y)
(2.5+x)(5.2+y)
9.77x-(5-a)x+2a
åèèµæï¼zhidao.baidu.com/question/177982310.html 2010-9-10