七年级数学下册计算题大全109Word格式.docx
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38
(4y+8x+8z2)-(9y+3x+3z2)
(9k2+3k)-(4k2-2k+8)
(3a2-3a+7b)-(5a2-7a-2b)
3x2+(x2-3x+7)+(5x+1)
6y2+(9x2-y)+(x2-6y2)
5
(3x2-5xy-—x)+(2x2-3xy+7x)
6
(—xy+2y2+3)+(x2+—xy+y2+3)
37
43
(xy+—y-—)+(xy+x+6)
54
(4y-9x+6z2)+(2y-2x-8z2)
(4k2-2k)+(8k2-9k+2)
(7a2-4a+7b)-(7a2-7a-5b)
x2+(7x2+6x-7)+(5x+7)
y2+(2x2+y)-(2x2+5y2)
(8x2-3xy+—x)+(2x2+xy-x)
4
19
(—xy+6y2-5)+(x2-—xy-9y2+4)
58
12
(xy-—y+—)-(xy-x-3)
83
(6y-9x+z2)-(y-2x+5z2)
(6k2+k)+(9k2-9k+6)
(8a2-6a+4b)+(3a2+4a+5b)
x2-(4x2-2x-3)+(5x-2)
8y2-(x2-y)-(x2-5y2)
7
(6x2+9xy-—x)-(5x2-8xy+2x)
8
65
(—xy-3y2+5)-(x2-—xy-7y2+7)
54
11
(xy-—y+—)-(xy-x-1)
56
(8y+2x-3z2)+(4y+4x-7z2)
(3k2+3k)-(2k2+k+3)
(5a2-8a+4b)-(3a2+7a+b)
6x2-(5x2-2x+1)+(6x-1)
8y2-(4x2-y)-(4x2-9y2)
(x2+6xy+—x)+(7x2-7xy-8x)
21
(—xy-3y2-8)-(x2-—xy+3y2+3)
36
(xy+—y+—)-(xy-x+5)
67
(2y-4x+5z2)+(4y-8x+2z2)
(7k2+7k)-(5k2+6k+2)
(a2+5a+2b)+(2a2-2a+5b)
x2-(8x2-2x-3)-(7x+3)
7y2-(3x2+y)-(8x2-2y2)
(3x2+3xy+—x)-(3x2-9xy+5x)
(—xy+6y2-2)-(x2-—xy+6y2+2)
(xy+—y+—)-(xy+x-5)
(7y-8x-5z2)-(5y+x+9z2)
(k2+3k)-(6k2+k-6)
(2a2-3a-6b)+(5a2+a+9b)
7x2-(5x2-6x+6)-(7x+4)
4y2+(5x2+y)-(3x2+5y2)
(2x2+xy+—x)-(9x2-2xy+5x)
(—xy-7y2+5)-(x2-—xy-8y2-4)
48
18
(xy-—y+—)-(xy-x-4)
37
(8y-x-6z2)+(6y+x-4z2)
(k2-7k)+(7k2+2k-6)
(6a2-4a+3b)+(5a2-a+7b)
5x2-(7x2+7x+7)+(7x+5)
9y2-(9x2+y)-(3x2-9y2)
9
(2x2-7xy-—x)+(6x2-6xy+9x)
14
(—xy+8y2+6)-(x2-—xy-3y2+5)
45
(xy-—y-—)-(xy-x-5)
33
(5y-5x+2z2)-(3y+2x+8z2)
(2k2+8k)-(4k2+7k-4)
(7a2-2a+7b)+(a2+a-4b)
x2+(6x2-9x-9)+(8x-4)
2y2-(7x2-y)-(5x2+7y2)
(9x2+xy-—x)-(x2-4xy+9x)
71
(—xy+5y2+5)+(x2-—xy-5y2-8)
88
(xy+—y-—)+(xy-x+3)
55
(2y-8x-7z2)-(6y-3x+7z2)
(6k2+k)+(3k2-2k-8)
(7a2+3a-3b)-(2a2+3a-3b)
4x2+(2x2-3x-5)-(x+5)
5y2-(4x2-y)+(9x2-9y2)
(2x2+8xy-—x)-(7x2+xy+5x)
17
(—xy+5y2+8)-(x2+—xy+4y2-6)
38
17
(xy-—y-—)-(xy-x+4)
78
(5y-4x+5z2)+(2y+7x+2z2)
(7k2-3k)+(7k2-8k+6)
(6a2-a-9b)-(6a2+5a-3b)
3x2+(4x2+x+5)-(8x-4)
2y2-(x2+y)-(6x2+8y2)
(5x2-4xy+—x)+(9x2+7xy-4x)
87
(—xy-8y2-4)-(x2-—xy-8y2-4)
78
15
(xy+—y+—)+(xy-x+3)
74
(3y-5x+8z2)+(4y-3x-7z2)
(2k2-8k)-(7k2-3k-6)
(8a2+7a-8b)+(8a2-2a-4b)
6x2-(x2+4x+1)+(5x+3)
3y2-(9x2-y)+(2x2+8y2)
(9x2+2xy+—x)+(6x2+6xy-5x)
73
(—xy+8y2+5)-(x2+—xy+7y2-4)
64
(xy+—y+—)+(xy+x-7)
58
(4y-4x+4z2)-(4y+9x+2z2)
(3k2+9k)+(4k2+7k-2)
(6a2+2a+7b)-(9a2+6a+b)
6x2+(6x2+9x-8)+(5x-9)
3y2-(2x2+y)+(7x2-7y2)