七年级数学整式的加减法计算题大全 76.docx
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七年级数学整式的加减法计算题大全76
3
(4x2-2xy-—x)+(2x2-6xy-3x)
4
16
(—xy-3y2+8)-(x2-—xy+2y2+5)
65
91
(xy+—y+—)+(xy+x-5)
86
(9y-5x+5z2)-(4y+7x+3z2)
(2m2+9m+8)-(3m+7n-7)
(7x2-7x-6)-6(4x2-9x)
-3(x2-2)+3(x2-8)
-(x2y-3xy-2)-8(x2y-8xy+7)
14
(—x2+12x+15y)+(—x2-15x+26y)
55
11
-—(6k3+9k2+5)+—(4k3-7k2-7k)
62
(4k2-3k)+(8k2-k+2)
(3a2-a+8b)-(6a2+9a+8b)
3x2+(8x2+4x-6)+(3x+2)
9y2+(x2-y)+(x2+7y2)
1
(5x2+2xy+—x)-(4x2-5xy+8x)
8
41
(—xy-5y2+9)+(x2-—xy+5y2+9)
33
16
(xy+—y+—)-(xy-x-4)
85
(y+x+4z2)+(y+9x+6z2)
(4m2+2m+5)-(9m+5n+5)
(2x2+5x+5)-6(6x2+2x)
-6(x2+3)-4(x2+6)
-(x2y+9xy-4)+3(x2y+6xy+6)
17
(—x2-10x-19y)+(—x2-10x+15y)
88
11
-—(k3-k2+6)-—(7k3-3k2-5k)
46
(8k2-5k)-(7k2-6k+2)
(2a2-5a+b)+(8a2+9a+7b)
2x2+(8x2+8x-1)-(6x+7)
3y2+(4x2-y)-(4x2+3y2)
1
(x2-9xy-—x)+(8x2+xy-5x)
3
61
(—xy-4y2+2)+(x2+—xy+3y2+3)
55
87
(xy-—y-—)-(xy-x+6)
78
(6y+2x-4z2)+(6y-6x+2z2)
(9m2-3m+8)+(8m-2n+5)
(5x2+3x-5)-3(7x2-7x)
-9(x2+7)-4(x2-6)
-(x2y+8xy-5)+7(x2y+9xy+9)
68
(—x2+10x+16y)-(—x2-16x-10y)
77
11
-—(2k3-5k2-4)+—(k3-k2-3k)
44
(3k2+6k)+(5k2+3k+3)
(6a2+7a-8b)+(7a2+4a+5b)
2x2+(x2-x-8)+(4x+6)
8y2-(5x2-y)-(8x2+8y2)
6
(5x2-8xy+—x)+(6x2-2xy+3x)
7
71
(—xy-5y2-7)+(x2-—xy-5y2-3)
87
87
(xy+—y+—)-(xy-x+6)
76