七年级数学整式的加减法计算题大全 560.docx
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七年级数学整式的加减法计算题大全560
(k2+4k)-(6k2+4k+5)
(6a2+3a+b)-(6a2+5a+8b)
7x2-(2x2-9x-9)-(7x-8)
7y2-(2x2+y)+(8x2-9y2)
1
(2x2+4xy-—x)+(5x2+7xy+2x)
3
31
(—xy+4y2+8)+(x2+—xy+8y2+7)
46
61
(xy+—y+—)+(xy+x-1)
54
(9y+8x+z2)+(6y+8x+2z2)
(9m2-m-6)-(7m+3n-1)
(2x2+9x+8)+7(7x2+2x)
-6(x2+6)+8(x2-4)
-(x2y+9xy+7)-4(x2y-2xy-4)
15
(—x2+27x-11y)+(—x2+13x-14y)
44
11
-—(8k3-3k2+4)+—(5k3-2k2-5k)
45
(3k2+4k)-(9k2+k-2)
(4a2-7a-5b)-(2a2+6a-6b)
4x2-(2x2+5x-3)-(x+7)
4y2-(2x2-y)+(4x2+7y2)
6
(4x2+xy+—x)-(9x2+9xy+9x)
7
11
(—xy+3y2+5)+(x2+—xy+6y2+2)
36
79
(xy+—y-—)-(xy+x-6)
88
(5y-3x+3z2)+(4y+8x-6z2)
(8m2+3m-2)+(2m-5n-6)
(7x2-x+8)+5(6x2-x)
-9(x2-4)+8(x2-8)
-(x2y-3xy+9)+4(x2y-9xy+6)
24
(—x2-26x-15y)-(—x2+14x-13y)
33
11
-—(6k3-2k2+6)-—(k3+3k2-5k)
46
(9k2+5k)-(4k2+5k+2)
(7a2-7a-6b)-(9a2+6a+3b)
x2+(4x2+x-5)+(5x-5)
8y2+(x2-y)+(9x2+7y2)
1
(9x2-7xy+—x)-(3x2-5xy-5x)
3
81
(—xy-8y2+3)-(x2-—xy-8y2+7)
75
95
(xy+—y+—)+(xy-x-1)
86
(8y-6x-5z2)+(7y-3x+8z2)
(7m2+3m-4)-(2m-7n+2)
(5x2-5x-5)+5(4x2-7x)
-9(x2+5)-6(x2+8)
-(x2y+6xy+7)-6(x2y+8xy+9)
77
(—x2+10x+17y)-(—x2-13x+17y)
88
11
-—(2k3-k2+5)+—(3k3+2k2-6k)
44
(6k2-2k)-(6k2+5k+7)
(2a2-a-3b)+(6a2-6a-5b)
6x2+(x2-3x+4)-(8x+2)