七年级数学整式的加减法计算题大全 43.docx
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七年级数学整式的加减法计算题大全43
7y2+(2x2-y)-(2x2+2y2)
7
(8x2+4xy+—x)+(8x2+7xy+6x)
6
46
(—xy+3y2+4)-(x2-—xy+8y2+7)
57
71
(xy+—y-—)-(xy+x+3)
66
(7y+8x-9z2)-(5y+5x-5z2)
(6m2-5m-4)+(6m+8n+8)
(3x2-9x+7)-9(6x2-8x)
-2(x2-8)-2(x2-4)
-(x2y-9xy+2)-5(x2y-3xy+8)
99
(—x2-17x-10y)-(—x2+12x+26y)
88
11
-—(7k3-3k2+4)-—(7k3+7k2-1k)
23
(3k2+2k)-(k2+9k+3)
(5a2-4a-6b)-(7a2-4a+4b)
7x2+(6x2+x+9)+(6x-1)
6y2-(3x2-y)-(7x2-y2)
7
(8x2-8xy+—x)-(8x2+3xy-8x)
8
75
(—xy-8y2-3)+(x2+—xy+2y2+3)
64
11
(xy+—y+—)+(xy+x+1)
78
(9y-6x+7z2)-(9y+x-6z2)
(m2-9m+3)-(7m-9n+2)
(x2-6x-1)+4(9x2-5x)
-4(x2+4)+2(x2+4)
-(x2y+6xy+8)-4(x2y-5xy+7)
16
(—x2+15x+13y)+(—x2+14x-14y)
77
11
-—(k3-6k2-3)+—(2k3-7k2-6k)
22
(8k2-9k)+(k2-3k-7)
(8a2-7a-5b)+(a2+a-6b)
2x2-(x2-5x-7)+(x-5)
2y2-(4x2-y)-(9x2+9y2)
1
(4x2+4xy+—x)+(4x2+8xy+6x)
3
76
(—xy+5y2+7)+(x2-—xy-7y2+5)
87
14
(xy-—y-—)+(xy-x-8)
45
(4y-6x+8z2)-(2y+x+4z2)
(8m2-2m+4)+(4m+4n-9)
(6x2-2x-5)-8(4x2+8x)
-7(x2+5)+4(x2+2)
-(x2y+3xy-7)+8(x2y+6xy-7)
77
(—x2+19x-14y)+(—x2+10x+11y)
88
11
-—(8k3-7k2+4)-—(9k3+4k2+4k)
45
(4k2+7k)-(3k2+5k+8)
(3a2+2a-2b)-(4a2-5a-2b)
6x2+(2x2+7x+1)-(4x+2)
2y2+(4x2+y)+(7x2-5y2)
9
(8x2+7xy+—x)+(4x2-5xy+8x)
8
17
(—xy-2y2-7)-(x2-—xy+7y2+2)
58