七年级数学下册计算题大全67.docx
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七年级数学下册计算题大全67.docx
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七年级数学下册计算题大全67
(8k2+2k)-(8k2+4k-5)
(8a2+2a-b)-(2a2-3a-8b)
9x2+(4x2-3x+4)-(7x-7)
2y2+(7x2+y)-(3x2+8y2)
1
(4x2-xy+—x)+(4x2-2xy+4x)
3
51
(—xy-5y2+2)-(x2-—xy+2y2-7)
48
52
(xy-—y+—)+(xy-x+3)
63
(2y+8x-9z2)-(4y-3x-z2)
(k2-8k)+(8k2-8k+7)
(5a2-2a+9b)-(5a2-8a+b)
8x2+(3x2+4x-9)-(4x-2)
4y2-(5x2-y)-(6x2+9y2)
6
(2x2-2xy-—x)+(9x2+5xy+4x)
7
13
(—xy-4y2-3)+(x2-—xy-9y2+3)
74
11
(xy+—y-—)+(xy-x-3)
68
(2y+3x+5z2)+(3y-9x-9z2)
(5k2+3k)-(2k2+4k+5)
(6a2+3a+b)+(8a2+2a+2b)
6x2+(9x2-5x+4)+(6x-2)
8y2-(x2-y)-(6x2+y2)
7
(4x2+xy-—x)+(7x2+5xy+4x)
6
64
(—xy+8y2+6)-(x2+—xy-6y2+8)
55
64
(xy+—y-—)+(xy+x-3)
53
(4y+7x+6z2)-(6y+3x+7z2)
(9k2+3k)-(3k2+7k-4)
(3a2-2a-4b)+(4a2-5a-8b)
8x2+(x2-x-4)+(x-7)
9y2+(7x2-y)+(6x2+2y2)
7
(2x2+8xy-—x)-(7x2+xy-4x)
6
16
(—xy-5y2-4)+(x2+—xy-6y2-3)
85
15
(xy+—y-—)-(xy+x-9)
56
(6y-2x-6z2)-(2y-3x-4z2)
(6k2+6k)+(2k2+k-4)
(4a2+8a+2b)-(4a2+a-8b)
8x2-(2x2+6x+9)+(9x-5)
5y2-(3x2-y)-(7x2+6y2)
5
(3x2-4xy+—x)-(4x2-8xy+8x)
6
19
(—xy-6y2+7)-(x2+—xy+3y2+3)
68
17
(xy-—y+—)-(xy-x+6)
68
(4y-x-2z2)-(6y-7x+2z2)
(7k2-3k)-(4k2+7k+2)
(5a2+2a-8b)+(2a2+4a+b)
8x2-(5x2+9x+1)+(6x+6)
3y2+(2x2-y)+(6x2-9y2)
1
(6x2-5xy-—x)+(x2-6xy-x)
4
15
(—xy+2y2+4)+(x2-—xy+9y2-3)
34
64
(xy-—y+—)-(xy+x-9)
55
(3y-5x-5z2)-(4y-7x-7z2)
(8k2-3k)-(k2-5k-7)
(4a2-2a+2b)+(2a2-5a-2b)
4x2+(5x2-8x+7)+(8x-7)
5y2-(9x2+y)+(4x2+4y2)
9
(x2-4xy-—x)+(3x2+7xy-x)
8
16
(—xy-5y2-2)-(x2-—xy-y2+2)
87
51
(xy-—y+—)-(xy-x+5)
65
(5y-5x-5z2)-(3y+5x+3z2)
(2k2+9k)+(k2-7k-1)
(3a2-a+9b)-(7a2-6a+5b)
7x2+(5x2+5x+5)+(3x+6)
y2+(2x2+y)+(5x2-2y2)
1
(6x2-5xy+—x)-(7x2+9xy-7x)
7
11
(—xy+7y2+6)+(x2-—xy-8y2+3)
63
15
(xy-—y-—)+(xy+x-9)
86
(4y-7x-5z2)-(4y-5x-9z2)
(7k2-8k)-(9k2+8k-5)
(3a2-4a+6b)+(7a2-9a+8b)
4x2-(x2-4x-2)+(2x-8)
3y2+(3x2+y)+(6x2+7y2)
1
(7x2-5xy+—x)+(2x2+5xy-9x)
4
15
(—xy-y2-9)+(x2+—xy-4y2+3)
64
31
(xy+—y-—)-(xy-x-7)
43
(3y-4x+4z2)+(4y+6x-2z2)
(2k2-8k)+(5k2-9k-4)
(3a2+8a+4b)-(3a2-4a+8b)
7x2-(4x2-5x-9)-(3x+6)
y2-(3x2+y)+(5x2+3y2)
6
(5x2+8xy-—x)+(8x2+5xy+6x)
7
12
(—xy-8y2-2)-(x2+—xy-8y2+6)
63
44
(xy+—y-—)+(xy+x-8)
55
(4y-6x-3z2)+(7y-3x-z2)
(k2-8k)-(6k2-7k+2)
(3a2+5a+6b)+(7a2+7a-9b)
8x2+(x2+3x+6)-(3x-7)
3y2+(4x2-y)+(7x2-6y2)
1
(3x2+9xy-—x)-(3x2+5xy-8x)
5
75
(—xy-3y2-7)+(x2+—xy-y2-6)
66
44
(xy+—y+—)+(xy-x+7)
55
(3y+3x-z2)-(2y+2x+9z2)
(3k2-9k)+(7k2+3k-6)
(8a2+9a-2b)+(3a2-6a+b)
6x2+(2x2-9x-7)-(3x-3)
7y2+(2x2+y)-(2x2+3y2)
4
(x2-4xy+—x)+(6x2+xy-x)
5
35
(—xy+2y2-9)+(x2+—xy+4y2+4)
44
17
(xy-—y+—)-(xy+x+9)
56
(3y-9x+8z2)+(y-5x+7z2)
(4k2+7k)+(6k2-4k+8)
(a2-6a-3b)+(5a2+6a+5b)
2x2+(8x2+6x-5)-(7x+2)
7y2-(x2+y)+(8x2+y2)
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