七年级数学下册整式的加减法计算题 70Word文档下载推荐.docx
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(4k2+k)+(3k2+2k+2)
(6a2+6a-9b)+(2a2+4a-5b)
3x2+(x2-6x+8)-(4x+8)
2y2+(6x2-y)+(4x2-9y2)
1
(7x2-6xy+—x)-(6x2+xy-6x)
8
31
(—xy+9y2+8)-(x2-—xy-4y2+3)
43
51
(xy+—y-—)-(xy-x+2)
68
(y+5x+z2)-(2y+3x-z2)
(6k2+7k)-(6k2+3k-6)
(9a2-5a+4b)-(5a2-a-8b)
x2-(2x2+2x+7)-(7x+5)
4y2-(2x2+y)+(8x2-6y2)
(4x2-8xy+—x)+(9x2-6xy+9x)
11
(—xy+9y2-2)+(x2+—xy+2y2+4)
87
(xy+—y+—)+(xy-x+7)
76
(8y-3x-5z2)+(2y+9x+3z2)
(9k2+3k)+(k2-8k+2)
(4a2-6a+4b)-(a2-6a-8b)
2x2+(2x2-x-4)-(x+4)
3y2+(9x2-y)-(3x2+5y2)
4
(5x2-7xy-—x)+(8x2-5xy+2x)
5
61
(—xy+9y2+5)-(x2-—xy+7y2+6)
77
(xy+—y+—)+(xy+x+1)
78
(3y-7x+6z2)-(8y+6x-2z2)
(6k2-9k)+(5k2+4k-3)
(8a2-4a+b)+(5a2+9a-7b)
x2-(2x2+4x+2)+(6x+5)
y2-(5x2+y)-(5x2+5y2)
(7x2-5xy+—x)-(5x2+9xy+4x)
(—xy+9y2+1)+(x2-—xy+5y2-3)
33
(xy-—y+—)+(xy+x+5)
66
(9y-7x-7z2)-(2y+5x-z2)
(4k2-3k)-(4k2+3k-4)
(3a2-2a-4b)-(2a2+8a-b)
x2-(7x2+5x+4)-(4x-1)
8y2+(9x2+y)-(8x2-y2)
9
(2x2-6xy-—x)-(9x2+4xy+7x)
21
(—xy-8y2+1)+(x2+—xy+4y2+8)
38
55
(xy-—y+—)-(xy+x-4)
(8y+9x-5z2)-(6y+9x-4z2)
(9k2+6k)-(k2+5k+9)
(a2-a+4b)+(3a2-5a-4b)
2x2+(5x2+3x-4)+(9x+6)