七年级数学下册整式的加减法计算题 260.docx
《七年级数学下册整式的加减法计算题 260.docx》由会员分享,可在线阅读,更多相关《七年级数学下册整式的加减法计算题 260.docx(5页珍藏版)》请在冰点文库上搜索。
七年级数学下册整式的加减法计算题260
6
(7x2+2xy+—x)-(6x2-2xy-6x)
7
55
(—xy-9y2-1)-(x2+—xy-9y2-4)
64
72
(xy+—y-—)+(xy-x-9)
83
(6y-4x-7z2)+(6y-8x-6z2)
(5k2+k)-(8k2-k-9)
(4a2+5a+b)-(7a2+5a-3b)
4x2+(8x2-9x+2)+(3x-5)
7y2+(3x2-y)-(5x2+8y2)
5
(2x2+5xy+—x)+(8x2+xy+7x)
6
41
(—xy-7y2+7)+(x2-—xy+8y2-4)
36
64
(xy-—y-—)-(xy+x-8)
55
(y+7x-5z2)+(3y-2x+8z2)
(7k2-9k)-(k2-7k+4)
(4a2+8a+5b)-(3a2+5a+6b)
9x2-(x2+x+7)-(9x+2)
9y2+(7x2-y)-(9x2-3y2)
1
(9x2-3xy+—x)-(8x2+3xy-2x)
3
11
(—xy-5y2+5)-(x2+—xy-8y2+5)
65
34
(xy+—y-—)+(xy-x-7)
43
(4y+4x-2z2)+(9y-x-3z2)
(3k2-3k)-(6k2-4k+7)
(3a2+8a-4b)+(a2-8a-3b)
4x2-(6x2+8x+6)+(2x-6)
8y2+(6x2-y)+(2x2+6y2)
1
(x2+xy+—x)+(4x2+5xy+5x)
4
67
(—xy+2y2+7)+(x2-—xy-2y2+9)
58
96
(xy+—y-—)-(xy-x+2)
85
(3y-6x-9z2)+(4y+9x+z2)
(7k2-9k)-(9k2-8k-8)
(5a2-8a+4b)-(6a2+7a-3b)
7x2+(2x2+4x+8)+(4x+4)
9y2+(x2+y)+(8x2+9y2)
7
(2x2+5xy+—x)-(x2+8xy+x)
6
44
(—xy+8y2-9)+(x2-—xy-5y2+8)
35
41
(xy-—y-—)-(xy-x-3)
37
(7y+3x+6z2)+(3y-4x-4z2)
(5k2-4k)-(6k2-k-9)
(3a2+7a+6b)+(6a2-3a-3b)
8x2+(x2+3x+8)-(6x+4)
4y2+(8x2-y)+(6x2+5y2)
8
(8x2-4xy-—x)+(4x2+2xy+6x)
7
17
(—xy-3y2-3)+(x2-—xy-5y2-8)
48
26
(xy-—y-—)+(xy+x+3)
35
(2y-x+5z2)+(4y+x+5z2)
(5k2+5k)+(k2+9k-7)