七年级数学整式的加减法计算题大全 510.docx
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七年级数学整式的加减法计算题大全510
1
(6x2+6xy+—x)+(4x2-3xy-6x)
4
15
(—xy-7y2+4)-(x2-—xy+8y2+5)
46
11
(xy+—y+—)-(xy-x+1)
73
(6y+3x-z2)-(6y+2x+3z2)
(3m2-m+1)-(4m+n+4)
(9x2-9x+2)+6(5x2-6x)
-6(x2+8)-9(x2+5)
-(x2y+2xy-9)+3(x2y+7xy+2)
33
(—x2+25x+10y)-(—x2-19x+21y)
44
11
-—(2k3+2k2+1)-—(3k3-5k2+6k)
26
(2k2-6k)-(6k2-4k-2)
(a2+4a+9b)-(6a2-3a-8b)
6x2+(8x2+4x+1)-(9x-9)
6y2+(7x2-y)-(8x2+4y2)
5
(9x2-4xy+—x)+(3x2+xy-x)
6
15
(—xy-y2+7)+(x2+—xy+6y2-6)
64
11
(xy-—y-—)+(xy+x+1)
58
(6y-x-2z2)+(2y+7x-z2)
(3m2-6m-7)-(3m+5n-8)
(3x2+8x+2)-6(6x2+3x)
-3(x2+2)+5(x2+6)
-(x2y-3xy+7)+2(x2y+6xy-5)
55
(—x2+26x-15y)+(—x2+11x-20y)
66
11
-—(9k3-6k2-2)+—(2k3-4k2+2k)
63
(4k2-5k)+(6k2-8k-4)
(9a2+8a-6b)+(8a2+7a+5b)
2x2+(9x2-x+3)+(6x+9)
y2+(3x2-y)+(7x2+2y2)
2
(4x2-xy+—x)+(8x2+xy+5x)
3
17
(—xy+8y2+5)-(x2-—xy+5y2-6)
66
68
(xy-—y-—)+(xy-x+5)
57
(4y-2x+9z2)-(2y-8x-7z2)
(m2+7m-6)-(8m-5n-2)
(7x2+3x+8)+2(6x2-6x)
-3(x2+3)-2(x2-7)
-(x2y-2xy+4)+7(x2y-7xy-4)
13
(—x2+21x+13y)+(—x2+16x-21y)
44
11
-—(9k3-3k2-8)+—(2k3-5k2-1k)
45
(6k2+6k)+(k2-4k+1)
(4a2-8a-7b)+(a2-8a-b)
3x2+(4x2-3x-4)+(x+7)
8y2-(6x2-y)-(5x2+3y2)
1
(3x2+xy-—x)+(4x2-7xy+8x)
3
41
(—xy-y2+5)+(x2+—xy+y2-7)
33
11
(xy+—y+—)+(xy-x-4)
45