七年级数学整式的加减法计算题大全 576.docx
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七年级数学整式的加减法计算题大全576
11
(xy+—y-—)-(xy-x-3)
43
(3y-4x+3z2)-(8y+2x-2z2)
(m2-3m-3)+(5m-n+4)
(7x2-9x+9)+3(7x2+8x)
-5(x2+8)+5(x2+1)
-(x2y+5xy-4)+5(x2y-4xy-4)
77
(—x2+27x-11y)-(—x2-10x-18y)
88
11
-—(4k3+7k2-5)+—(6k3+7k2-9k)
63
(8k2-k)-(8k2-3k-7)
(9a2-a-4b)+(5a2-4a+3b)
2x2+(6x2+4x-7)-(5x-3)
9y2+(3x2-y)+(7x2-9y2)
6
(5x2-9xy-—x)+(8x2-9xy-8x)
5
99
(—xy+y2+5)+(x2-—xy+7y2-6)
88
15
(xy+—y+—)-(xy+x-7)
34
(6y+3x-7z2)-(5y+4x-6z2)
(6m2+6m+4)-(5m+9n-1)
(x2+3x+7)-5(7x2+8x)
-3(x2-9)-8(x2-6)
-(x2y-9xy+3)-7(x2y-5xy+4)
11
(—x2-19x-18y)+(—x2-17x-24y)
66
11
-—(k3-2k2+4)-—(7k3-4k2-5k)
43
(2k2+4k)-(2k2+9k-8)
(9a2+6a-6b)-(6a2-6a+2b)
5x2-(4x2+2x-2)-(9x+7)
2y2-(5x2-y)-(2x2-8y2)
1
(8x2-6xy+—x)+(2x2+6xy-3x)
3
11
(—xy+9y2+8)+(x2+—xy+y2+4)
68
78
(xy-—y+—)-(xy+x+8)
67
(5y+9x+z2)-(y-3x-3z2)
(5m2+3m-4)+(m-n-9)
(8x2-2x+5)+2(6x2-9x)
-6(x2+3)-8(x2-6)
-(x2y+7xy+8)-4(x2y+2xy+5)
55
(—x2+24x-15y)-(—x2+20x-16y)
44
11
-—(k3-3k2+9)+—(7k3-4k2-3k)
66
(3k2+k)+(8k2-7k+9)
(7a2-6a-6b)+(a2-4a-6b)
6x2+(2x2-7x-6)+(8x-7)
7y2-(5x2+y)+(2x2-4y2)
9
(2x2-3xy-—x)-(4x2-7xy-6x)
8
34
(—xy+3y2-2)+(x2-—xy-6y2-6)
43
81
(xy-—y+—)+(xy-x+5)
73
(7y-2x+7z2)+(8y-x-5z2)
(8m2-8m+5)-(9m+8n+7)