北师大版七年级数学下册整式的加减法计算题精选 439.docx
《北师大版七年级数学下册整式的加减法计算题精选 439.docx》由会员分享,可在线阅读,更多相关《北师大版七年级数学下册整式的加减法计算题精选 439.docx(8页珍藏版)》请在冰点文库上搜索。
![北师大版七年级数学下册整式的加减法计算题精选 439.docx](https://file1.bingdoc.com/fileroot1/2023-7/17/6889e784-597c-4b6d-86ba-0c81a6862705/6889e784-597c-4b6d-86ba-0c81a68627051.gif)
北师大版七年级数学下册整式的加减法计算题精选439
7y2+(x2-y)+(6x2-y2)
1
(8x2+2xy+—x)-(5x2+xy-3x)
4
11
(—xy+6y2+1)+(x2+—xy+7y2+5)
67
57
(xy+—y-—)-(xy+x-9)
46
(6y+x-9z2)+(y-3x-2z2)
(7k2+8k)+(k2-2k-2)
(8a2-2a+4b)-(2a2+4a-6b)
4x2+(5x2-8x-4)+(9x-8)
4y2+(5x2-y)+(9x2+7y2)
1
(8x2-xy-—x)-(5x2+xy-6x)
4
11
(—xy+7y2+3)-(x2-—xy+7y2-9)
66
14
(xy-—y-—)+(xy-x+6)
53
(7y-5x-8z2)-(6y+3x+4z2)
(5k2+7k)+(2k2-6k+1)
(3a2+3a-b)+(7a2+7a-7b)
8x2-(6x2-7x-6)-(3x-7)
3y2-(5x2-y)-(x2-4y2)
1
(x2-4xy-—x)+(7x2+5xy+8x)
5
74
(—xy-6y2+2)-(x2-—xy+2y2-5)
65
56
(xy-—y+—)+(xy+x+2)
67
(6y+x-5z2)+(3y+8x-z2)
(7k2-8k)+(k2+2k+9)
(4a2-a+5b)-(6a2+a+3b)
4x2+(3x2-4x-7)+(6x-7)
y2+(9x2-y)+(x2+3y2)
1
(4x2+2xy+—x)-(4x2-2xy+4x)
4
61
(—xy-7y2-7)+(x2+—xy+8y2-5)
78
56
(xy+—y-—)+(xy+x-5)
47
(6y-9x-7z2)-(y+3x-z2)
(2k2-2k)+(k2-6k-4)
(8a2+2a-3b)+(9a2+7a-8b)
2x2-(3x2+x+3)+(8x+5)
8y2+(4x2-y)-(2x2-5y2)
1
(x2+2xy-—x)-(7x2+6xy+9x)
8
24
(—xy+5y2-4)-(x2+—xy+8y2-3)
35
77
(xy+—y+—)-(xy-x+4)
66
(3y+x-6z2)-(7y+4x-5z2)
(5k2+8k)+(7k2-7k+5)
(6a2+4a+3b)-(4a2+4a-2b)
4x2+(5x2+4x-2)+(9x+9)
3y2+(7x2-y)-(3x2-5y2)
1
(6x2+2xy+—x)+(3x2+xy+5x)
8
13
(—xy+2y2+9)+(x2+—xy+6y2-3)
74
81
(xy-—y-—)+(xy-x-5)
76
(4y+4x+4z2)+(9y+4x+9z2)