七年级数学下册整式的加减法计算题 537.docx
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七年级数学下册整式的加减法计算题537
81
(—xy-4y2+1)-(x2+—xy-5y2+9)
75
51
(xy-—y-—)-(xy+x+3)
65
(6y+4x-6z2)+(5y+3x-3z2)
(3k2+7k)-(9k2+3k-9)
(8a2+7a-9b)-(9a2-4a-9b)
4x2+(5x2-8x+6)-(5x-7)
7y2+(x2-y)+(4x2-3y2)
3
(8x2+7xy+—x)+(2x2+6xy+4x)
4
71
(—xy-2y2-1)-(x2-—xy-2y2+1)
66
16
(xy-—y-—)+(xy+x-3)
47
(8y-2x-6z2)+(8y+6x+9z2)
(7k2-7k)-(k2-k+7)
(2a2+2a+7b)-(8a2-5a-7b)
8x2-(2x2+7x+6)+(x-4)
3y2+(5x2+y)+(3x2-6y2)
1
(8x2-6xy-—x)+(9x2-8xy-9x)
4
11
(—xy+3y2+9)-(x2-—xy-7y2+3)
75
39
(xy-—y-—)-(xy+x+2)
48
(4y+9x-4z2)+(6y+6x+3z2)
(5k2+4k)+(3k2-5k-3)
(9a2-9a+2b)+(6a2-7a-b)
5x2-(4x2+5x-4)+(8x-4)
4y2-(7x2-y)+(7x2+3y2)
1
(9x2-8xy+—x)-(x2-7xy+5x)
7
11
(—xy+y2-6)-(x2-—xy-y2-3)
73
11
(xy-—y+—)-(xy-x+1)
55
(2y-3x+5z2)-(9y+2x-z2)
(6k2-8k)-(8k2+2k-2)
(3a2-5a+6b)-(4a2-5a+9b)
4x2-(8x2+4x-5)+(9x-2)
7y2-(8x2+y)+(4x2-7y2)
1
(9x2+2xy-—x)-(2x2+6xy-9x)
3
61
(—xy+y2+5)+(x2+—xy-y2-7)
74
81
(xy-—y-—)-(xy+x-4)
73
(5y+4x+8z2)-(4y-2x-6z2)
(8k2+3k)-(7k2+3k-2)
(6a2-8a-b)-(3a2-9a-7b)
9x2-(5x2+x-9)-(5x+4)
4y2+(7x2-y)+(4x2-3y2)
1
(2x2+3xy-—x)-(8x2-7xy+7x)
5
91
(—xy+2y2-5)-(x2-—xy-8y2+9)
84
48
(xy+—y+—)-(xy-x-9)
57
(3y+5x-9z2)+(8y+4x-3z2)
(2k2-2k)+(9k2-6k+7)
(4a2+5a+2b)+(7a2-7a+9b)