七年级数学下册计算题大全174.docx
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七年级数学下册计算题大全174
5
(x2-3xy-—x)-(9x2+6xy-2x)
4
31
(—xy-8y2+6)-(x2+—xy-6y2+4)
46
11
(xy+—y-—)+(xy+x-5)
65
(8y-9x-8z2)-(5y+5x-z2)
(5k2-8k)+(8k2-k-9)
(6a2-9a-3b)-(3a2-4a-5b)
x2-(5x2-x-7)-(8x-4)
2y2+(x2-y)-(2x2+y2)
1
(6x2+7xy+—x)-(6x2+4xy-5x)
4
14
(—xy-5y2-1)+(x2-—xy-2y2-9)
85
51
(xy+—y+—)-(xy-x+5)
64
(5y+7x+8z2)-(3y-5x+8z2)
(2k2+4k)-(9k2+7k-5)
(6a2+9a+6b)-(8a2-3a-2b)
3x2+(x2+3x+2)+(2x-5)
3y2+(6x2+y)-(2x2-6y2)
4
(x2+6xy+—x)-(8x2+5xy-2x)
3
17
(—xy+6y2-3)+(x2-—xy+8y2+8)
78
11
(xy+—y+—)-(xy-x+3)
65
(6y-x-5z2)+(5y+8x-z2)
(3k2-9k)-(k2-6k+4)
(3a2-5a+8b)+(8a2+2a+6b)
3x2-(7x2-8x+7)-(5x+8)
2y2+(2x2+y)+(4x2+2y2)
9
(7x2-3xy+—x)-(8x2+2xy-5x)
8
18
(—xy+4y2+1)+(x2+—xy+y2+5)
37
11
(xy-—y+—)-(xy-x+5)
78
(6y+8x-z2)+(7y+7x-z2)
(2k2-3k)-(5k2+3k+9)
(7a2+6a+3b)-(3a2-8a+b)
3x2-(7x2+2x+5)-(5x+7)
5y2-(5x2+y)-(7x2-9y2)
6
(7x2+6xy-—x)+(9x2-7xy-x)
5
61
(—xy+y2+9)-(x2-—xy+7y2+9)
76
11
(xy-—y-—)-(xy+x-5)
35
(4y-8x-z2)+(2y-9x-2z2)
(8k2-4k)-(k2-5k+4)
(8a2-2a+3b)+(5a2-2a+3b)
6x2+(9x2-8x+5)-(9x+7)
4y2-(4x2+y)-(x2+5y2)
9
(6x2+9xy-—x)-(x2+4xy-6x)
8
13
(—xy+9y2-5)+(x2-—xy-6y2-4)
64
17
(xy+—y+—)-(xy+x-3)
36
(9y+6x+9z2)-(7y-9x-z2)
(k2-k)-(7k2+k-8)
(2a2+2a+9b)-(8a2+a-2b)
8x2+(6x2-8x-4)-(x+9)
7y2-(9x2-y)-(9x2-9y2)
6
(7x2-5xy-—x)-(2x2+4xy-5x)
5
41
(—xy-9y2-4)+(x2-—xy-8y2+5)
33
11
(xy+—y+—)+(xy+x+4)
73
(2y+8x-4z2)-(y-5x+6z2)
(5k2+5k)-(8k2-7k-6)
(3a2-a+2b)-(8a2-8a+8b)
3x2-(2x2+3x-3)-(5x-4)
9y2-(3x2+y)+(2x2-5y2)
1
(x2-6xy-—x)-(2x2+2xy-3x)
6
19
(—xy+9y2+9)-(x2-—xy+6y2-1)
88
14
(xy-—y+—)-(xy-x-5)
63
(8y-6x+2z2)+(7y-9x-6z2)
(2k2+4k)-(9k2-4k-3)
(8a2+6a+b)-(4a2+9a-7b)
8x2+(7x2-2x-7)-(2x-6)
5y2+(6x2+y)+(6x2+2y2)
6
(8x2+2xy-—x)+(4x2+4xy-2x)
7
98
(—xy-9y2+9)+(x2-—xy-5y2-1)
87
12
(xy+—y-—)-(xy-x-8)
43
(6y+6x-z2)-(y-2x+z2)
(k2-8k)-(7k2+3k+2)
(4a2+7a-9b)+(4a2-a-6b)
5x2-(7x2+4x+5)-(7x+1)
8y2+(8x2-y)+(x2-y2)
7
(6x2-xy-—x)-(x2-5xy-4x)
6
81
(—xy+9y2-4)+(x2+—xy+2y2-1)
77
66
(xy-—y-—)-(xy+x+7)
57
(3y-9x-8z2)+(6y-9x-z2)
(8k2+5k)+(2k2+2k-9)
(4a2+3a+6b)+(6a2-6a-2b)
3x2+(2x2+x+9)-(5x+7)
8y2-(8x2-y)-(2x2+6y2)
7
(6x2-5xy-—x)+(8x2-3xy-9x)
6
59
(—xy-y2-4)-(x2+—xy+8y2+5)
48
41
(xy-—y-—)-(xy+x-8)
53
(6y-9x-4z2)-(5y+9x-5z2)
(7k2-8k)+(5k2+4k-6)
(7a2+8a-3b)+(3a2+9a-3b)
7x2+(4x2-9x+5)+(8x+3)
7y2-(6x2-y)+(9x2-9y2)
1
(4x2+6xy+—x)+(5x2+4xy+3x)
3
11
(—xy+6y2-1)+(x2-—xy-3y2+3)
74
11
(xy+—y+—)+(xy+x+5)
63
(5y-5x+7z2)+(4y+6x-8z2)
(7k2+8k)+(3k2-9k-7)
(8a2+7a-2b)+(4a2-8a-9b)
9x2-(7x2-6x-9)+(2x+8)
2y2+(6x2-y)-(3x2+4y2)
9
(6x2-5xy-—x)+(5x2+4xy-8x)
8
67
(—xy-2y2+7)+(x2-—xy+7y2-3)
56
15
(xy+—y+—)-(xy-x-2)
84
(6y+5x-6z2)-(6y-5x-9z2)