七年级数学下册计算题大全38.docx
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七年级数学下册计算题大全38.docx
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七年级数学下册计算题大全38
5
(3x2+4xy+—x)+(7x2-5xy+6x)
6
16
(—xy+7y2+2)-(x2-—xy-3y2+7)
57
91
(xy+—y-—)-(xy+x+4)
87
(2y+2x-4z2)-(2y-2x-z2)
(k2-k)-(3k2-2k+5)
(5a2+8a-4b)+(7a2+9a+4b)
2x2+(8x2-3x-6)+(8x+2)
2y2+(3x2-y)+(x2+y2)
4
(2x2-5xy+—x)-(6x2+6xy-5x)
5
18
(—xy+2y2+9)+(x2+—xy-6y2+7)
47
31
(xy+—y-—)-(xy-x-1)
48
(7y+8x-2z2)-(9y-x+3z2)
(3k2-9k)-(4k2-2k+1)
(5a2+6a+8b)-(4a2-a+8b)
2x2+(7x2+9x+3)+(x+5)
5y2+(4x2-y)-(3x2+7y2)
7
(8x2+9xy-—x)-(5x2+5xy-7x)
6
31
(—xy+7y2+7)+(x2+—xy+y2+3)
45
17
(xy+—y-—)+(xy-x+1)
78
(5y-7x+3z2)-(5y-8x-2z2)
(k2+5k)+(6k2-2k-1)
(5a2+9a+2b)+(a2-a-8b)
5x2-(9x2+x-6)+(5x+6)
7y2+(6x2+y)-(4x2+6y2)
6
(4x2-5xy+—x)-(6x2+9xy-3x)
5
12
(—xy+9y2+6)+(x2+—xy-3y2+8)
83
78
(xy+—y+—)-(xy-x+5)
87
(2y-x+7z2)-(6y-4x+5z2)
(6k2+3k)+(2k2+8k-4)
(5a2+8a+5b)+(a2-8a+2b)
3x2-(9x2-7x-1)-(4x-2)
9y2-(8x2+y)+(2x2+9y2)
4
(x2+8xy+—x)+(4x2+7xy-8x)
5
77
(—xy+3y2+3)+(x2-—xy+2y2+5)
66
15
(xy-—y+—)+(xy-x-6)
56
(5y+x+7z2)+(6y+4x-7z2)
(8k2+4k)+(2k2+5k-2)
(4a2+2a+6b)+(6a2-6a+b)
6x2+(7x2+x+1)-(5x+3)
4y2+(x2-y)-(3x2-y2)
1
(8x2-3xy-—x)+(x2-5xy+7x)
5
13
(—xy-9y2-1)-(x2+—xy+4y2+3)
54
16
(xy+—y-—)+(xy-x+1)
85
(8y-6x+5z2)-(8y+5x+z2)
(6k2-7k)+(4k2-7k+6)
(9a2-5a-b)+(4a2-6a-7b)
x2-(7x2-4x-4)+(4x+8)
9y2-(3x2-y)-(9x2-6y2)
1
(9x2+xy-—x)+(5x2+xy+7x)
4
76
(—xy-9y2-5)+(x2+—xy+9y2-8)
87
11
(xy-—y-—)+(xy-x+9)
88
(6y+7x+6z2)+(2y+5x+5z2)
(9k2+2k)+(2k2+4k-2)
(3a2-7a-5b)-(8a2-a-5b)
3x2+(6x2-6x+8)-(5x+6)
7y2-(6x2-y)-(6x2-9y2)
1
(x2+9xy+—x)-(8x2+6xy+x)
6
61
(—xy-8y2-7)-(x2+—xy-4y2+6)
53
61
(xy-—y+—)+(xy+x-8)
57
(4y-7x-8z2)+(5y+6x+8z2)
(8k2+5k)-(5k2-3k+9)
(9a2+a+9b)-(5a2+4a-4b)
7x2+(7x2+6x-9)+(4x+4)
7y2+(2x2-y)-(6x2+y2)
1
(8x2-9xy+—x)-(9x2+xy+9x)
7
61
(—xy-y2+7)+(x2-—xy-5y2+5)
58
14
(xy+—y+—)+(xy+x+5)
33
(9y-x-7z2)+(2y-6x-8z2)
(2k2+8k)+(6k2-4k+2)
(3a2+5a+4b)+(5a2+7a+5b)
4x2+(8x2-2x-2)+(x-5)
3y2-(9x2-y)+(x2+7y2)
9
(8x2+2xy-—x)+(4x2-7xy+4x)
8
75
(—xy+6y2+7)-(x2+—xy-5y2+8)
86
11
(xy-—y+—)-(xy-x-7)
66
(2y-5x-4z2)+(7y-3x+7z2)
(9k2+5k)+(4k2+4k+9)
(a2+a-9b)-(5a2-3a+9b)
9x2+(8x2+3x-9)-(4x+5)
5y2-(x2-y)-(8x2-5y2)
8
(4x2+7xy+—x)+(7x2+2xy+2x)
7
11
(—xy+5y2+8)-(x2-—xy+4y2+7)
46
61
(xy+—y+—)-(xy+x-2)
53
(8y-8x+3z2)-(y+5x+5z2)
(8k2-5k)-(8k2+9k+2)
(a2-7a-5b)-(8a2+3a+5b)
6x2-(x2-3x+7)+(x-1)
7y2+(6x2+y)-(8x2-9y2)
1
(5x2-6xy-—x)-(6x2-3xy-7x)
8
14
(—xy+2y2+7)-(x2+—xy+9y2-2)
73
14
(xy-—y-—)+(xy+x+8)
45
(4y+3x+2z2)+(5y-8x+6z2)
(k2+2k)+(3k2-2k-6)
(5a2-a-2b)-(5a2-3a-b)
8x2-(7x2+x-6)-(9x+6)
6y2-(8x2-y)+(6x2-y2)
7
(4x2+2xy+—x)-(2x2+2xy+6x)
8
75
(—xy+y2+6)-(x2+—xy+9y2+6)
86
49
(xy-—y-—)+(xy-x+9)
38
(y+5x+4z2)-(4y-9x+9z2)
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- 七年 级数 下册 算题 大全 38