七年级数学下册计算题大全155.docx
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七年级数学下册计算题大全155
(5k2-7k)-(9k2-k+9)
(9a2-a-4b)+(a2-2a-7b)
2x2+(5x2-8x-5)-(9x+8)
y2-(5x2-y)+(7x2-9y2)
1
(7x2-7xy+—x)-(9x2-3xy-9x)
5
51
(—xy-3y2+9)+(x2-—xy+2y2+2)
67
11
(xy+—y+—)+(xy-x+6)
47
(6y-3x+z2)-(y-9x-z2)
(5k2-3k)-(3k2-8k-1)
(2a2+2a+3b)+(7a2-3a+b)
5x2-(x2-5x+2)+(3x-6)
3y2-(3x2-y)+(3x2-5y2)
1
(7x2-5xy-—x)-(6x2+2xy-9x)
5
11
(—xy-8y2+2)+(x2-—xy-6y2-1)
43
71
(xy-—y-—)-(xy-x-9)
86
(2y-8x-z2)-(9y-x-4z2)
(k2-2k)-(9k2-4k+2)
(4a2+4a-b)+(3a2-3a-2b)
5x2+(2x2+x-4)-(6x+5)
7y2-(8x2-y)-(6x2-4y2)
6
(8x2+2xy+—x)+(3x2-2xy-4x)
5
71
(—xy+5y2-2)+(x2-—xy-5y2-2)
64
91
(xy-—y-—)-(xy-x-5)
87
(6y+5x-z2)-(7y+3x-5z2)
(9k2-k)+(9k2+4k-6)
(8a2+4a+9b)+(a2+6a+4b)
3x2+(9x2+2x+6)-(6x-2)
3y2+(9x2-y)-(7x2+6y2)
7
(9x2+9xy-—x)+(x2+2xy-4x)
8
51
(—xy-9y2-3)+(x2-—xy+7y2-7)
46
11
(xy+—y-—)+(xy-x+4)
73
(6y+3x-5z2)+(3y+7x-z2)
(k2-7k)-(3k2+7k+8)
(8a2-7a-7b)+(6a2-8a-4b)
6x2+(x2-7x-1)-(8x-5)
y2+(5x2-y)-(9x2+3y2)
1
(8x2+9xy+—x)-(x2+4xy-4x)
6
46
(—xy+5y2-6)+(x2-—xy-y2-9)
57
55
(xy-—y-—)-(xy-x+3)
44
(y+4x+4z2)+(4y+5x-6z2)
(9k2+7k)-(k2+4k-4)
(5a2-2a+2b)-(6a2+a+b)
8x2-(7x2-5x+2)+(8x+1)
4y2-(4x2+y)-(9x2-y2)
8
(5x2+6xy-—x)+(x2+8xy+8x)
7
11
(—xy-3y2-1)-(x2-—xy-2y2-6)
75
91
(xy+—y+—)+(xy+x+8)
87
(5y-5x-8z2)-(7y-9x+8z2)
(3k2-7k)-(5k2+7k-4)
(6a2-2a+b)-(9a2-a+8b)
7x2-(8x2-8x+5)-(3x-7)
6y2+(x2-y)+(2x2-9y2)
7
(x2-7xy+—x)-(6x2-2xy+3x)
6
16
(—xy+9y2-4)+(x2-—xy-4y2-7)
67
19
(xy+—y+—)-(xy-x+6)
78
(6y-2x+z2)+(2y+4x-6z2)
(4k2-4k)-(6k2+7k+9)
(3a2+7a-9b)-(7a2+7a-2b)
6x2-(7x2+4x-3)+(3x+8)
4y2-(2x2-y)-(8x2+2y2)
4
(8x2-7xy+—x)-(9x2-xy+x)
5
15
(—xy-y2-1)-(x2+—xy+5y2+9)
86
59
(xy-—y+—)+(xy+x+5)
48
(5y+x-2z2)+(3y-6x+4z2)
(4k2+7k)-(5k2+2k+9)
(3a2+6a+5b)-(8a2+3a-7b)
7x2-(4x2+8x-4)-(5x-5)
3y2+(7x2-y)-(6x2+9y2)
5
(8x2-8xy+—x)+(8x2-4xy+3x)
4
93
(—xy+y2+9)+(x2+—xy-4y2-5)
84
61
(xy+—y+—)+(xy+x+9)
54
(9y+9x-3z2)-(y+6x+3z2)
(7k2-8k)-(7k2-2k+1)
(a2-9a-6b)-(5a2-9a+3b)
3x2-(7x2+8x-7)+(2x+2)
3y2-(6x2+y)+(4x2+y2)
4
(9x2-8xy+—x)+(5x2+xy+2x)
3
11
(—xy+6y2+7)-(x2-—xy-9y2+2)
83
67
(xy-—y-—)-(xy+x+6)
56
(2y+4x-8z2)+(8y+7x+z2)
(4k2+8k)+(9k2+6k+4)
(8a2-4a+7b)-(7a2-8a+4b)
3x2-(8x2-3x-8)-(3x+6)
8y2-(5x2-y)-(6x2-8y2)
7
(8x2-xy-—x)-(x2-9xy+2x)
6
46
(—xy+4y2+9)+(x2-—xy+9y2+5)
57
16
(xy+—y+—)+(xy+x-5)
47
(3y-4x-z2)-(9y+4x+z2)
(2k2-9k)+(6k2+2k-7)
(8a2-5a-5b)+(8a2-3a+2b)
9x2+(x2-7x+4)+(7x-6)
3y2+(3x2-y)+(5x2+6y2)
4
(8x2-7xy+—x)-(3x2-4xy+9x)
3
39
(—xy+6y2-1)+(x2+—xy-6y2+8)
48
11
(xy-—y+—)+(xy-x+2)
45
(7y-7x+9z2)+(9y+4x-8z2)
(4k2-k)+(3k2+3k-6)
(4a2+3a+4b)+(6a2-4a+7b)
9x2+(2x2-3x-7)+(3x+4)
6y2-(4x2-y)+(7x2-4y2)