七年级数学整式的加减法计算题大全 352.docx
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七年级数学整式的加减法计算题大全352
48
(xy-—y-—)+(xy+x+4)
37
(4y-9x+3z2)+(6y+9x+8z2)
(6m2+8m+2)-(3m-5n-9)
(x2+x+5)-8(7x2-x)
-4(x2-3)-7(x2+4)
-(x2y+5xy-2)+5(x2y-7xy+8)
91
(—x2-14x+16y)-(—x2-18x-14y)
88
11
-—(9k3-8k2-4)-—(5k3-2k2+1k)
43
(3k2+6k)+(6k2+5k-4)
(3a2+8a-9b)-(7a2-7a+3b)
6x2+(4x2+7x+1)+(3x+4)
3y2-(9x2+y)+(5x2-8y2)
4
(2x2+4xy-—x)-(3x2-8xy-2x)
5
69
(—xy-y2+9)+(x2+—xy+3y2+4)
58
11
(xy-—y+—)-(xy+x-1)
86
(9y-5x+4z2)-(6y-6x+7z2)
(6m2+5m-5)-(7m-8n-2)
(x2-8x+8)+3(5x2+6x)
-5(x2+6)+4(x2-6)
-(x2y+3xy+9)-8(x2y-5xy-6)
61
(—x2+21x+20y)+(—x2-17x-27y)
77
11
-—(9k3+4k2-3)+—(k3+5k2+5k)
45
(2k2-4k)+(8k2-7k+3)
(2a2+4a-7b)-(3a2-7a-6b)
5x2-(9x2-3x-6)+(x-6)
9y2-(2x2+y)+(5x2+7y2)
6
(2x2+3xy-—x)+(8x2-8xy+2x)
5
11
(—xy+y2+2)+(x2+—xy-y2-8)
63
11
(xy+—y-—)+(xy+x-2)
84
(6y+5x+6z2)-(9y+5x-7z2)
(m2+9m+3)+(7m+9n-1)
(3x2+5x+3)-2(9x2+5x)
-6(x2-3)+7(x2-1)
-(x2y-9xy+2)+2(x2y+6xy-4)
71
(—x2-19x-14y)-(—x2+10x-27y)
66
11
-—(5k3+2k2+3)+—(8k3-2k2+7k)
46
(5k2+4k)-(2k2-4k+6)
(5a2-2a+6b)+(9a2-9a+5b)
5x2-(9x2-x-4)-(8x-2)
5y2+(9x2+y)+(2x2+8y2)
5
(9x2+4xy-—x)-(6x2+2xy+2x)
6
26
(—xy-5y2-4)-(x2+—xy+9y2-2)
35
11
(xy-—y+—)-(xy-x+2)
68
(7y+x-z2)+(8y+x+9z2)
(9m2-3m-1)+(2m+9n+2)