七年级数学下册计算题1.docx
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七年级数学下册计算题1.docx
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七年级数学下册计算题1
(3k2+9k)+(8k2-4k+7)
(9a2+a+9b)+(3a2-5a-7b)
3x2+(3x2+2x+3)-(3x+8)
y2+(2x2+y)+(2x2+2y2)
1
(6x2+5xy-—x)-(5x2-9xy+7x)
3
19
(—xy-6y2-6)-(x2-—xy-5y2+9)
68
41
(xy-—y+—)+(xy+x-6)
35
(y+2x-4z2)+(5y+2x-9z2)
(4k2+3k)-(6k2-9k-1)
(5a2+2a-9b)+(4a2+9a-6b)
7x2-(4x2+4x-4)+(6x-7)
y2+(x2-y)-(5x2-y2)
8
(x2+8xy+—x)-(9x2-9xy-7x)
7
11
(—xy+y2-2)-(x2-—xy-6y2-5)
76
18
(xy+—y-—)+(xy-x-8)
77
(3y-3x+7z2)+(6y+8x+8z2)
(2k2-k)+(2k2-5k+9)
(2a2-2a+8b)-(a2-2a+6b)
6x2+(5x2-5x-9)-(6x+6)
7y2+(2x2+y)+(6x2-9y2)
7
(9x2+8xy-—x)+(9x2-4xy-4x)
6
14
(—xy+2y2+6)+(x2+—xy+9y2+9)
53
11
(xy+—y+—)+(xy+x-6)
88
(3y+6x-5z2)+(5y-4x-8z2)
(7k2-8k)-(6k2-9k-6)
(7a2+6a+9b)-(5a2-3a-4b)
7x2+(2x2-8x-6)+(8x-2)
8y2+(6x2-y)+(5x2+3y2)
1
(2x2+8xy+—x)-(7x2-xy+7x)
8
77
(—xy+9y2-9)+(x2+—xy-4y2+7)
86
94
(xy+—y+—)-(xy-x-3)
83
(9y+4x+7z2)-(7y-x-8z2)
(4k2+9k)-(8k2-5k-7)
(7a2-7a+b)+(3a2+5a+5b)
5x2+(9x2-9x-9)+(9x-3)
4y2+(9x2-y)+(6x2+4y2)
9
(8x2-2xy+—x)-(x2-8xy-2x)
8
11
(—xy+7y2-3)-(x2-—xy+5y2-8)
38
14
(xy-—y-—)-(xy+x+7)
85
(8y+2x+z2)-(2y+6x+2z2)
(2k2+7k)+(8k2+7k-5)
(6a2-4a-6b)+(4a2+7a+7b)
4x2+(2x2-9x-3)-(8x+7)
3y2-(8x2-y)-(7x2-9y2)
5
(9x2-9xy-—x)-(x2+2xy-5x)
6
17
(—xy-2y2-8)+(x2+—xy-8y2-6)
78
65
(xy+—y-—)-(xy+x-9)
56
(7y+2x-9z2)+(8y-9x+z2)
(k2-k)-(5k2-4k-9)
(5a2+9a+5b)+(3a2-7a-9b)
4x2+(4x2-7x-1)-(7x-4)
2y2+(3x2-y)+(4x2+6y2)
7
(2x2-xy-—x)+(9x2+xy+2x)
6
47
(—xy-2y2+7)+(x2+—xy+y2+7)
36
17
(xy-—y-—)+(xy+x-6)
48
(y+7x-7z2)-(6y-3x+8z2)
(8k2+5k)+(5k2-4k+8)
(6a2+9a-4b)-(9a2-a-5b)
4x2-(7x2-2x+6)-(x-3)
9y2+(9x2+y)+(5x2+y2)
2
(3x2+6xy+—x)+(4x2+4xy+3x)
3
11
(—xy-9y2-8)-(x2-—xy+8y2-5)
87
13
(xy-—y-—)-(xy-x-2)
44
(4y-9x+7z2)+(2y+6x-z2)
(7k2-2k)+(5k2+8k-2)
(8a2-8a+b)-(a2-6a-3b)
2x2+(3x2-4x+7)+(2x-7)
4y2+(5x2+y)+(7x2-y2)
5
(6x2-5xy-—x)-(5x2+xy-6x)
6
97
(—xy-9y2-2)-(x2+—xy+7y2-6)
88
17
(xy+—y+—)-(xy-x+2)
68
(9y+9x+5z2)+(y-2x+7z2)
(k2-9k)+(2k2-k-9)
(7a2-8a+5b)+(3a2+7a-7b)
7x2-(5x2-x+3)-(4x+2)
8y2-(4x2-y)+(5x2-7y2)
6
(x2-9xy-—x)-(8x2-8xy-6x)
5
82
(—xy-4y2-2)-(x2+—xy-6y2+4)
73
15
(xy+—y-—)+(xy-x-6)
84
(8y+9x+2z2)-(4y-4x+7z2)
(k2-5k)+(6k2-3k+8)
(2a2-6a+2b)-(9a2+7a+8b)
7x2+(7x2+4x-1)+(6x-1)
7y2+(5x2+y)+(5x2+7y2)
4
(9x2-4xy+—x)+(5x2-8xy-3x)
5
46
(—xy-4y2-1)+(x2-—xy+6y2+9)
55
16
(xy-—y+—)+(xy+x+5)
45
(6y+7x+8z2)+(9y-4x-9z2)
(6k2-6k)-(7k2-4k+5)
(5a2+2a-5b)-(6a2+4a-3b)
6x2-(9x2+8x-3)-(9x-8)
2y2+(9x2+y)-(5x2+6y2)
6
(2x2+5xy-—x)-(8x2-9xy-x)
7
11
(—xy+3y2+8)-(x2-—xy+6y2+6)
67
75
(xy-—y+—)+(xy+x+9)
86
(y+5x+7z2)+(7y+x-4z2)
(9k2+7k)+(3k2+8k-3)
(8a2-9a-2b)+(a2+6a-b)
9x2+(2x2-9x+7)+(4x+2)
4y2-(2x2+y)+(3x2-5y2)
9
(4x2-5xy+—x)-(2x2+8xy+9x)
8
68
(—xy+8y2+9)-(x2-—xy-2y2-5)
77
14
(xy-—y-—)-(xy+x+3)
55
(7y+4x+8z2)-(8y-7x-5z2)
(8k2+8k)-(2k2-4k-7)
(a2-9a-6b)+(4a2-2a+5b)
6x2-(6x2+9x-8)-(6x-9)
y2+(4x2+y)-(5x2+5y2)
7
(4x2-6xy-—x)+(5x2-9xy+8x)
6
36
(—xy+2y2-2)-(x2+—xy-5y2-1)
45
11
(xy+—y-—)+(xy-x-9)
73
(9y+4x+3z2)-(y-7x-8z2)
(5k2+4k)-(2k2+5k+8)
(3a2-2a+2b)+(4a2-9a+2b)
4x2-(3x2-5x-8)-(9x-5)
5y2-(6x2+y)+(3x2-5y2)
4
(9x2+2xy-—x)+(7x2-3xy+5x)
5
11
(—xy+5y2-7)-(x2+—xy-6y2+6)
84
67
(xy+—y+—)+(xy-x+1)
76
(7y-8x-4z2)-(7y+8x+8z2)
(k2+8k)+(k2+2k-7)
(8a2-8a-7b)-(9a2+4a+6b)
2x2-(2x2+x-8)-(x-4)
3y2+(9x2+y)-(x2-3y2)
6
(4x2-3xy-—x)+(4x2-3xy+6x)
5
46
(—xy+8y2+2)+(x2+—xy+3y2-2)
57
12
(xy-—y-—)-(xy-x-4)
63
(2y+2x+2z2)-(4y+8x+4z2)
(7k2-6k)-(8k2-3k-5)
(2a2+6a+3b)-(8a2-3a-3b)
5x2+(8x2-4x-4)+(9x+9)
y2-(2x2+y)+(9x2-4y2)
7
(6x2+6xy+—x)+(9x2+5xy-8x)
6
93
(—xy-2y2+2)+(x2+—xy+8y2-3)
84
11
(xy-—y-—)+(xy+x-8)
54
(6y-3x-3z2)-(4y+9x+8z2)
(9k2+5k)-(2k2+5k+6)
(a2+6a-2b)+(7a2-3a-9b)
2x2-(3x2-x-8)-(5x-2)
y2+(x2-y)+(3x2-8y2)
7
(9x2+7xy+—x)-(9x2+5xy+2x)
6
51
(—xy+6y2+4)+(x2+—xy+7y2+3)
64
15
(xy-—y+—)+(xy+x+7)
66
(y-2x+4z2)-(6y-8x+8z2)
(8k2-7k)-(7k2+4k-9)
(2a2+2a+2b)+(7a2+9a+6b)
6x2-(x2-5x+4)+(6x+4)
y2-(6x2-y)+(9x2-5y2)
1
(3x2+9xy+—x)+(5x2-8xy+6x)
8
21
(—xy+5y2-5)+(x2+—xy+2y2+9)
37
11
(xy+—y+—)+(xy+x-7)
44
(9y+5x+4z2)+(y+7x-6z2)
(8k2-9k)-(5k2+5k-8)
(6a2+3a+b)+(2a2-a+8b)
3x2+(7x2+4x-6)+(3x-7)
6y2-(3x2-y)-(8x2-2y2)
1
(7x2+3xy+—x)-(7x2-xy+5x)
4
18
(—xy+4y2-1)-(x2-—xy-2y2+8)
77
11
(xy+—y-—)-(xy-x-9)
83
(8y+4x+5z2)+(2y+9x-3z2)
(5k2-6k)-(4k2-7k-8)
(8a2+8a+9b)+(8a2+5a+8b)
7x2-(7x2+6x-2)+(9x+1)
3y2+(3x2-y)-(2x2+3y2)
7
(2x2+5xy+—x)-(4x2-2xy-x)
8
67
(—xy-8y2-4)-(x2+—xy+6y2+8)
78
26
(xy+—y-—)+(xy+x-9)
35
(y-5x-4z2)+(4y-6x-2z2)
(6k2+k)+(3k2-9k+1)
(7a2+8a+8b)+(3a2+5a-6b)
3x2+(5x2+7x+2)+(8x+5)
8y2+(8x2-y)+(6x2-2y2)
6
(9x2+3xy+—x)-(3x2-7xy+9x)
7
62
(—xy-3y2+5)-(x2+—xy-9y2+8)
73
61
(xy+—y+—)+(xy-x+4)
55
(9y+3x-2z2)+(y-9x+6z2)
(6k2+7k)+(k2+5k-5)
(8a2+2a-9b)-(5a2+a-7b)
2x2+(2x2+4x-7)+(3x+7)
3y2+(6x2+y)+(7x2-7y2)
5
(5x2+2xy-—x)+(3x2+xy-4x)
4
69
(—xy-6y2+5)+(x2+—xy+5y2-3)
78
16
(xy-—y-—)-(xy-x+2)
35
(7y+4x-4z2)-(5y-2x+3z2)
(5k2-9k)+(k2+7k-9)
(4a2-2a-9b)+(5a2+a+2b)
9x2-(9x2+8x-5)+(8x+8)
2y2+(6x2+y)-(9x2-9y2)
3
(2x2+xy-—x)+(2x2-xy-5x)
4
19
(—xy-6y2+2)-(x2+—xy-3y2-4)
48
11
(xy-—y+—)+(xy-x-5)
83
(3y-5x-2z2)+(3y-6x-2z2)
(5k2+6k)+(8k2+7k-4)
(2a2+7a+7b)+(2a2+a-8b)
x2+(7x2-3x+8)-(8x-2)
5y2-(6x2+y)+(7x2+y2)
1
(9x2+4xy-—x)+(5x2+xy+6x)
5
95
(—xy+6y2-9)-(x2+—xy-5y2+8)
84
15
(xy-—y-—)+(xy-x-5)
74
(8y-9x+8z2)-(7y-4x-8z2)
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