七年级数学整式的加减法计算题大全 177.docx
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七年级数学整式的加减法计算题大全177
11
-—(7k3+3k2-7)+—(5k3-2k2+6k)
22
(5k2+3k)-(8k2+2k-9)
(7a2-7a-4b)+(6a2-5a+5b)
6x2-(9x2-3x-3)+(2x+9)
6y2-(9x2-y)+(9x2+9y2)
6
(6x2+2xy-—x)+(x2-5xy+6x)
5
15
(—xy-4y2-6)-(x2+—xy-2y2-2)
34
64
(xy+—y+—)+(xy-x+7)
55
(y+3x+9z2)+(2y+6x-3z2)
(7m2+5m+8)+(8m-2n-1)
(8x2+7x+6)-5(8x2-5x)
-4(x2+9)-4(x2-1)
-(x2y+4xy+3)-8(x2y+8xy+3)
13
(—x2+11x-17y)+(—x2-11x+29y)
44
11
-—(2k3-k2+6)-—(6k3+k2-5k)
22
(2k2-6k)+(k2-9k+5)
(5a2+a+5b)-(8a2+4a+3b)
2x2-(x2-4x+5)+(9x-4)
5y2+(x2-y)-(6x2-5y2)
4
(3x2-2xy-—x)+(6x2-xy-9x)
3
96
(—xy-2y2-8)-(x2-—xy-3y2+9)
87
46
(xy+—y+—)+(xy+x+7)
55
(4y-4x-6z2)+(9y-4x-z2)
(6m2-4m+6)+(3m-7n-8)
(2x2+7x-5)-5(4x2-2x)
-6(x2+9)+7(x2+8)
-(x2y-4xy-9)+8(x2y-8xy-8)
18
(—x2-21x-13y)-(—x2-14x+28y)
77
11
-—(4k3+5k2+6)+—(9k3+k2+3k)
64
(7k2-k)+(k2-7k+1)
(4a2+3a-8b)+(8a2+5a+9b)
6x2+(4x2-4x+6)+(6x+2)
9y2-(5x2+y)+(x2-5y2)
1
(x2+8xy-—x)+(6x2+6xy-7x)
3
56
(—xy-8y2-7)+(x2+—xy+7y2+4)
45
19
(xy-—y-—)+(xy+x+3)
68
(8y+x-9z2)+(8y+4x-5z2)
(3m2+2m-8)-(6m-7n+3)
(6x2+9x-1)-6(2x2-8x)
-9(x2-4)-9(x2-8)
-(x2y-4xy-9)+9(x2y-3xy-8)
13
(—x2-14x+10y)+(—x2-12x+20y)
44
11
-—(4k3-6k2-3)+—(9k3-6k2-6k)
45
(6k2+2k)+(k2-3k+8)
(a2-3a-9b)-(5a2+8a-7b)