七年级数学下册整式的加减法计算题 402.docx
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七年级数学下册整式的加减法计算题402
6x2+(3x2+3x+8)-(4x+4)
4y2-(4x2-y)-(5x2-2y2)
9
(x2-9xy+—x)-(7x2+xy+x)
8
41
(—xy-7y2-5)+(x2-—xy+6y2+2)
36
11
(xy+—y+—)+(xy-x+2)
76
(y+x-3z2)-(2y+4x+2z2)
(8k2+6k)-(5k2+8k-9)
(5a2+7a+2b)+(5a2+3a-2b)
2x2+(8x2+3x-1)+(2x-5)
9y2+(4x2+y)+(8x2+2y2)
6
(3x2+2xy-—x)+(4x2-3xy-3x)
5
17
(—xy-2y2+6)-(x2+—xy+3y2+7)
88
41
(xy+—y+—)-(xy+x-9)
37
(4y+4x-6z2)-(6y-7x-8z2)
(8k2+4k)-(7k2-3k+3)
(5a2-8a-7b)-(8a2-4a+3b)
6x2+(9x2-4x+8)+(5x-3)
5y2-(3x2-y)-(5x2+8y2)
9
(5x2-4xy+—x)+(6x2+9xy+3x)
8
16
(—xy-2y2+5)-(x2-—xy-6y2+1)
75
59
(xy-—y-—)+(xy+x+4)
68
(3y+5x+2z2)+(9y+7x+8z2)
(6k2+3k)-(3k2-4k+5)
(7a2+2a+b)-(9a2+a-b)
x2-(9x2-4x-4)+(8x+1)
9y2-(7x2-y)+(6x2+4y2)
4
(6x2+8xy-—x)+(9x2-5xy-x)
5
11
(—xy+6y2-4)-(x2+—xy+2y2-3)
36
41
(xy-—y-—)+(xy+x-9)
36
(7y+3x+z2)+(6y+9x+9z2)
(8k2+7k)+(5k2-8k-9)
(6a2+5a-9b)+(8a2+9a-6b)
7x2-(5x2+4x-4)-(9x+3)
y2+(8x2+y)-(5x2+5y2)
2
(9x2-4xy-—x)+(7x2+6xy+8x)
3
31
(—xy-3y2-8)+(x2-—xy+y2-8)
45
41
(xy+—y-—)-(xy+x-9)
57
(8y-7x-8z2)+(6y-5x+2z2)
(4k2+k)-(k2-5k-8)
(9a2+8a+b)-(4a2-3a+4b)
x2-(6x2+5x-1)+(3x+7)
9y2+(3x2-y)-(6x2-6y2)
1
(8x2-4xy+—x)+(8x2+7xy-9x)
6
11
(—xy+3y2+9)+(x2+—xy-2y2-1)
44
27
(xy+—y-—)-(xy-x-7)
38