七年级数学下册计算题大全243.docx
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七年级数学下册计算题大全243
(7k2+8k)+(2k2-3k-7)
(6a2+4a-9b)+(8a2-2a-5b)
3x2-(7x2-4x-4)-(4x-4)
6y2-(7x2+y)-(5x2+8y2)
1
(x2-3xy-—x)-(4x2+xy+7x)
7
11
(—xy-y2+7)+(x2-—xy-9y2-1)
54
52
(xy+—y+—)+(xy+x-7)
63
(3y-7x+3z2)-(4y+x+8z2)
(8k2-2k)-(k2+5k+3)
(8a2-9a-3b)-(9a2-4a-3b)
3x2+(6x2-6x-9)+(8x-1)
2y2+(5x2+y)+(8x2+8y2)
7
(7x2-6xy-—x)+(x2+6xy+3x)
8
17
(—xy-4y2-3)+(x2-—xy+6y2+1)
48
63
(xy-—y+—)-(xy-x+3)
54
(3y-6x-2z2)+(5y-3x+7z2)
(5k2-7k)+(8k2-5k-2)
(7a2-3a-3b)-(8a2-8a+4b)
2x2+(7x2+6x+5)+(3x-6)
2y2+(7x2-y)-(7x2+8y2)
6
(2x2+4xy+—x)-(2x2+3xy-4x)
7
47
(—xy+y2-6)+(x2+—xy-3y2+6)
36
17
(xy-—y+—)+(xy+x-1)
58
(4y+7x-6z2)-(2y+3x-9z2)
(6k2+6k)+(3k2+2k+3)
(9a2+9a+2b)+(9a2-4a+6b)
5x2+(2x2+9x-5)-(2x-1)
4y2-(9x2-y)-(4x2+6y2)
1
(7x2+5xy-—x)+(7x2+6xy+5x)
5
47
(—xy+y2+8)-(x2-—xy+6y2+9)
56
14
(xy+—y-—)+(xy-x+4)
73
(y-x-4z2)-(2y+5x-6z2)
(9k2+5k)-(9k2+4k-3)
(7a2+8a+3b)+(6a2+4a-8b)
9x2-(5x2-9x+6)-(9x-7)
5y2-(4x2+y)+(x2+y2)
4
(9x2-5xy-—x)-(4x2-5xy+3x)
3
12
(—xy+y2+2)-(x2+—xy-4y2-3)
43
11
(xy+—y-—)+(xy-x-1)
84
(2y+4x+8z2)-(4y+6x-6z2)
(7k2+9k)+(2k2+6k+5)
(5a2+9a-4b)-(9a2+4a-4b)
9x2+(9x2+7x-5)+(5x-1)
2y2+(6x2+y)+(7x2+4y2)
6
(3x2+3xy-—x)+(3x2+9xy-2x)
7
18
(—xy-4y2-5)+(x2+—xy-y2-2)
77
56
(xy-—y+—)-(xy+x-5)
67
(7y-8x-9z2)+(7y-7x+3z2)
(5k2+3k)-(9k2+3k-2)
(5a2+a+b)+(6a2-5a+5b)
4x2-(4x2+6x+9)+(3x+1)
5y2-(4x2-y)+(8x2-4y2)
6
(3x2+9xy+—x)-(x2-8xy+2x)
5
49
(—xy+5y2+3)+(x2+—xy-4y2-1)
58
14
(xy-—y-—)-(xy-x+7)
53
(9y+x+6z2)+(9y-2x-z2)
(3k2-5k)+(4k2-8k-2)
(9a2+9a-3b)-(2a2+3a+5b)
9x2+(3x2-9x+4)+(4x+3)
4y2+(5x2+y)+(x2-2y2)
3
(6x2-8xy-—x)-(4x2+5xy-6x)
4
59
(—xy-4y2+8)-(x2+—xy-4y2-5)
68
37
(xy+—y-—)-(xy-x+1)
48
(4y-6x+6z2)-(4y-8x+4z2)
(7k2-9k)+(7k2+4k+8)
(9a2+a+2b)-(2a2+5a+9b)
5x2+(8x2+2x+4)+(8x-1)
6y2+(x2-y)+(2x2+5y2)
7
(2x2-6xy-—x)+(9x2+5xy+7x)
6
22
(—xy-3y2+7)-(x2+—xy+6y2-7)
33
15
(xy+—y+—)+(xy-x+3)
46
(8y+x-3z2)-(8y+7x+8z2)
(k2-9k)-(9k2+6k-8)
(4a2+6a+6b)-(6a2-7a+8b)
3x2-(x2+3x-2)-(9x+9)
5y2+(8x2-y)+(9x2-y2)
9
(8x2-5xy-—x)+(8x2-7xy+8x)
8
65
(—xy+8y2+9)-(x2-—xy-7y2-1)
74
15
(xy-—y-—)+(xy-x+6)
56
(4y+9x+z2)+(4y+4x-7z2)
(2k2+6k)-(k2-9k-2)
(2a2-a+7b)-(3a2+8a+7b)
5x2-(2x2+8x+5)-(2x-6)
2y2-(8x2+y)-(7x2+9y2)
8
(4x2+3xy-—x)-(5x2+3xy+4x)
7
96
(—xy-7y2-5)-(x2-—xy+2y2+3)
87
15
(xy+—y+—)+(xy+x-9)
34
(8y-2x+2z2)-(2y-3x-6z2)
(k2-5k)+(k2+3k-5)
(5a2-4a+3b)-(a2-5a+6b)
6x2+(7x2-6x-6)-(4x+5)
y2+(5x2+y)+(3x2+y2)
8
(4x2+3xy-—x)-(x2-7xy+x)
7
61
(—xy+2y2+3)+(x2-—xy+2y2-7)
58
21
(xy-—y+—)+(xy-x-6)
38
(7y+3x-9z2)-(5y+4x-z2)
(k2+8k)+(3k2-9k-8)
(8a2+6a-5b)+(9a2+3a-5b)
7x2-(5x2-x+1)+(5x-2)
3y2+(4x2+y)-(x2+6y2)