七年级数学整式的加减法计算题大全 377Word下载.docx
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-—(8k3+6k2+5)+—(9k3-5k2-2k)
43
(k2+6k)-(8k2+9k+6)
(2a2+9a+6b)+(6a2-8a-b)
6x2-(x2+9x+7)+(5x+3)
7y2-(2x2+y)-(6x2-2y2)
1
(7x2-5xy+—x)+(6x2+3xy-5x)
3
71
(—xy-6y2+9)+(x2-—xy-8y2+7)
66
61
(xy-—y+—)-(xy-x-4)
55
(9y-3x-6z2)+(5y-7x+2z2)
(9m2+6m-7)+(6m+3n-7)
(8x2+2x-4)-7(6x2-6x)
-3(x2-9)-9(x2-7)
-(x2y+4xy+8)-2(x2y-4xy-3)
14
(—x2-23x+15y)-(—x2-13x-23y)
55
-—(6k3+6k2+9)-—(7k3-2k2-6k)
(8k2+8k)-(3k2-2k+1)
(9a2+9a-7b)+(4a2-9a-8b)
4x2+(2x2+9x-8)+(9x+1)
6y2+(5x2+y)-(7x2+5y2)
(6x2-2xy-—x)+(2x2+5xy+x)
4
91
(—xy-2y2+1)+(x2-—xy-8y2-5)
86
86
(xy-—y-—)+(xy+x-7)
75
(4y-6x-9z2)+(5y-3x+9z2)
(6m2+6m+1)-(6m+8n+2)
(2x2+4x-3)-5(5x2-2x)
-9(x2-8)-6(x2+7)
-(x2y+8xy+6)+5(x2y-3xy-6)
(—x2-21x+18y)+(—x2+15x-12y)
-—(6k3+k2+1)-—(4k3-7k2+8k)
64
(6k2-6k)+(k2-k+9)
(6a2-5a+7b)-(4a2+2a-5b)
3x2+(3x2+3x+6)-(5x+9)
8y2+(3x2+y)+(4x2+3y2)
(4x2+3xy+—x)-(9x2-7xy-4x)
41
(—xy+5y2-8)-(x2-—xy-4y2+5)
36
(xy+—y-—)-(xy-x-5)
77
(7y-3x-5z2)+(9y+2x-z2)
(8m2-m+8)-(6m-4n+1)
(x2+5x-4)+2(x2-x)
-4(x2-1)+3(x2+2)
-(x2y+3xy-3)+7(x2y+9xy-3)
97
(—x2-13x-12y)-(—x2-14x-14y)
88
-—(5k3-6k2+4)-—(5k3-9k2+2k)
45