七年级数学整式的加减法计算题大全 138.docx
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七年级数学整式的加减法计算题大全138
(7m2+7m-3)+(9m+9n+8)
(6x2-6x-6)-7(4x2-4x)
-2(x2+7)+4(x2+8)
-(x2y-3xy-4)-6(x2y-5xy-9)
88
(—x2+26x-13y)-(—x2-13x-23y)
77
11
-—(4k3-5k2+5)+—(5k3+8k2-6k)
42
(9k2-5k)-(5k2+2k+3)
(2a2-9a+9b)-(3a2+4a+7b)
9x2-(9x2-5x-4)+(8x+4)
y2-(5x2+y)-(6x2-8y2)
4
(2x2+5xy+—x)-(5x2+5xy-x)
3
61
(—xy-8y2-5)-(x2-—xy-7y2-6)
78
73
(xy-—y-—)+(xy-x-5)
64
(7y+3x+9z2)+(4y-4x-z2)
(6m2+3m-7)-(8m+9n-7)
(6x2-x-8)-7(4x2+4x)
-5(x2-2)-6(x2-5)
-(x2y+3xy+7)-5(x2y+3xy+5)
51
(—x2+26x+20y)+(—x2+19x+18y)
66
11
-—(6k3+6k2-2)+—(3k3-3k2-3k)
66
(6k2+k)+(k2-3k+6)
(8a2-a-2b)+(5a2+6a+6b)
9x2-(5x2-x+6)-(6x-9)
4y2-(5x2+y)-(2x2+9y2)
1
(2x2-9xy+—x)+(6x2+4xy+3x)
5
71
(—xy+3y2-2)-(x2+—xy-2y2-1)
65
11
(xy+—y+—)-(xy+x+3)
55
(4y+4x-8z2)+(9y-x+7z2)
(6m2-7m+3)-(5m+3n-4)
(2x2+8x-7)-7(7x2-7x)
-5(x2-5)-3(x2-5)
-(x2y+7xy+5)+6(x2y-9xy-5)
11
(—x2-18x+20y)+(—x2+12x+24y)
55
11
-—(4k3+6k2-5)+—(5k3+7k2+3k)
45
(7k2-4k)+(9k2-9k+1)
(9a2-2a+2b)+(7a2-2a+4b)
6x2+(4x2+5x-3)-(7x+3)
5y2-(4x2-y)+(9x2+4y2)
6
(x2-3xy-—x)-(x2-xy-x)
5
11
(—xy+9y2+4)-(x2+—xy-3y2+3)
56
16
(xy+—y+—)-(xy+x-3)
65
(9y-5x-8z2)+(9y+9x-5z2)
(7m2-m-5)+(8m-n+5)
(6x2+9x-4)+8(3x2-2x)
-9(x2+5)+6(x2+9)