七年级数学下册整式的加减法计算题 708Word格式.docx
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86
11
(xy+—y-—)+(xy+x-5)
68
(4y-3x+3z2)-(y+8x+6z2)
(7k2-9k)+(5k2+k-5)
(2a2-7a-2b)+(2a2-8a-2b)
3x2+(8x2+7x+7)-(8x+5)
2y2-(4x2-y)-(x2+9y2)
1
(6x2-2xy+—x)+(3x2+xy-7x)
11
(—xy+8y2+7)+(x2-—xy-6y2+4)
87
91
(xy+—y+—)-(xy+x-7)
85
(2y-4x+3z2)+(y-x-8z2)
(9k2-5k)-(5k2-4k+2)
(7a2-8a+4b)-(3a2-2a+6b)
x2+(x2+9x-3)+(x+9)
3y2+(8x2+y)+(2x2-3y2)
(7x2-2xy-—x)-(3x2+6xy+8x)
7
57
(—xy+4y2+4)-(x2-—xy+3y2-8)
66
13
(xy+—y+—)-(xy-x-4)
44
(y+3x+2z2)-(9y+2x-z2)
(3k2-6k)-(6k2+4k+8)
(7a2-4a-9b)-(a2+8a-6b)
4x2-(4x2+2x+7)+(x+2)
3y2-(3x2-y)+(8x2-7y2)
(4x2+6xy+—x)+(2x2-3xy+2x)
8
84
(—xy-5y2+1)-(x2+—xy+4y2+1)
75
17
(xy+—y+—)-(xy-x-9)
86
(7y-8x+z2)-(5y-4x-8z2)
(4k2-5k)+(4k2-4k-6)
(2a2+3a+9b)-(a2-5a+7b)
8x2+(3x2-x-8)-(6x-5)
6y2+(3x2-y)+(6x2-6y2)
(7x2+6xy+—x)-(x2-5xy+2x)
(—xy-5y2-7)+(x2-—xy+2y2+2)
77
57
(xy+—y-—)+(xy-x-2)
48
(4y+4x+4z2)-(4y-8x+7z2)
(8k2+2k)-(9k2-8k-8)
(5a2+8a-5b)+(9a2+8a-6b)
2x2-(8x2-5x-2)-(3x+7)
y2-(5x2+y)-(8x2-3y2)
(3x2+6xy-—x)-(7x2+8xy-9x)
6
(—xy-6y2+5)-(x2+—xy+4y2+3)
36
(xy-—y+—)-(xy+x+7)
(2y+x+3z2)+(6y+8x-z2)
(2k2-4k)+(6k2+7k+1)