七年级数学整式的加减法计算题大全 236.docx
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七年级数学整式的加减法计算题大全236
(7m2+5m-4)+(9m-4n-3)
(6x2-6x+4)+7(4x2-3x)
-6(x2-7)+4(x2-5)
-(x2y+8xy-6)-6(x2y+9xy+5)
16
(—x2-13x+17y)+(—x2+11x+19y)
77
11
-—(7k3-6k2+3)+—(5k3+7k2+7k)
42
(2k2+7k)-(2k2-k-6)
(3a2-6a+2b)-(a2-3a+8b)
x2+(x2-x+9)+(6x-9)
y2-(7x2+y)+(x2+y2)
1
(3x2-3xy+—x)-(8x2-6xy-4x)
8
17
(—xy-8y2-4)-(x2+—xy-2y2-8)
66
34
(xy-—y+—)+(xy-x+2)
45
(9y+6x-2z2)-(4y-7x+2z2)
(2m2+2m-3)+(6m-4n+6)
(2x2-8x-9)+3(x2-x)
-4(x2-5)-9(x2-9)
-(x2y-6xy+5)+3(x2y+2xy+9)
15
(—x2-26x+11y)+(—x2+11x+24y)
44
11
-—(4k3-8k2+6)-—(5k3+5k2-3k)
62
(9k2+6k)-(5k2-3k+8)
(3a2+8a-7b)-(6a2+8a+4b)
4x2+(3x2-8x+4)+(5x-7)
3y2+(5x2+y)-(x2-8y2)
1
(5x2+7xy-—x)+(2x2-3xy-8x)
7
43
(—xy+8y2-8)+(x2-—xy-2y2-8)
34
45
(xy-—y+—)+(xy+x+4)
56
(5y+2x-8z2)+(3y+6x-4z2)
(5m2-9m-7)-(8m+5n-1)
(x2-4x+3)+7(7x2-9x)
-6(x2-4)-7(x2+8)
-(x2y+4xy-6)-8(x2y+6xy-7)
14
(—x2+24x-11y)+(—x2-16x+19y)
33
11
-—(3k3+6k2+3)+—(k3-k2-9k)
63
(9k2-k)+(k2+5k-9)
(2a2-a+7b)+(2a2+3a+5b)
2x2+(2x2-2x+7)+(x-8)
3y2-(3x2+y)+(5x2+6y2)
6
(3x2-8xy+—x)-(2x2+xy-9x)
7
46
(—xy-9y2+5)+(x2+—xy-8y2+7)
55
25
(xy-—y+—)+(xy-x-2)
36
(4y-3x+z2)+(y+7x+5z2)
(2m2-4m+5)-(9m+n+8)
(4x2-5x-4)+2(2x2-x)
-5(x2+8)-3(x2+3)