七年级数学整式的加减法计算题大全 112.docx
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七年级数学整式的加减法计算题大全112
(4k2-5k)-(2k2-4k+3)
(8a2+4a-4b)+(a2-5a+2b)
6x2+(7x2+2x-5)+(6x-2)
y2-(5x2-y)+(5x2+3y2)
4
(9x2-9xy-—x)-(4x2-2xy+7x)
3
91
(—xy+5y2-8)+(x2-—xy-7y2-3)
83
51
(xy-—y+—)+(xy-x+4)
45
(y+7x-8z2)-(5y+4x-3z2)
(4m2+9m-4)+(9m+3n-4)
(8x2+8x-9)+6(9x2+8x)
-5(x2+6)+3(x2+7)
-(x2y+4xy+8)+7(x2y-9xy-9)
55
(—x2-14x+13y)-(—x2-18x+13y)
66
11
-—(9k3+7k2-7)+—(5k3+2k2-9k)
24
(3k2-9k)+(8k2+9k-4)
(7a2+5a-5b)+(7a2-3a+8b)
2x2+(x2+4x+7)+(2x-6)
4y2+(9x2-y)+(2x2+2y2)
7
(9x2-7xy+—x)+(4x2+9xy-9x)
6
54
(—xy+8y2-6)+(x2+—xy+7y2-7)
45
24
(xy+—y+—)+(xy+x+6)
33
(2y-x+6z2)-(3y+9x-z2)
(9m2+4m+4)-(5m+7n-6)
(8x2-7x-7)+4(2x2-x)
-4(x2+4)+7(x2+1)
-(x2y+6xy+6)-9(x2y+7xy-9)
42
(—x2+23x-12y)-(—x2-15x+11y)
33
11
-—(6k3+2k2-6)-—(k3-4k2+8k)
22
(6k2+9k)-(6k2+6k+4)
(6a2-8a+2b)+(7a2+4a-9b)
8x2-(9x2-8x-5)-(6x-8)
5y2+(3x2+y)-(5x2+6y2)
8
(2x2+5xy-—x)-(6x2-8xy-x)
7
11
(—xy+2y2+7)-(x2+—xy-7y2+5)
47
59
(xy-—y-—)-(xy-x+4)
68
(2y-3x-4z2)-(4y+2x-4z2)
(3m2+8m-3)-(6m-n+9)
(4x2-8x+7)-2(8x2-3x)
-6(x2-5)+2(x2-1)
-(x2y+6xy-3)-7(x2y+6xy-4)
79
(—x2+17x+17y)+(—x2-16x+19y)
88
11
-—(4k3+3k2-2)+—(2k3-8k2-1k)
46
(8k2+5k)-(k2+5k+7)
(9a2-2a-9b)-(9a2-2a-5b)
4x2+(3x2+9x-3)-(2x+7)