七年级数学整式的加减法计算题大全 551.docx
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七年级数学整式的加减法计算题大全551
(3a2+6a-3b)+(6a2+5a-6b)
9x2-(3x2+3x-3)+(4x+2)
3y2-(6x2-y)+(3x2-3y2)
1
(8x2-5xy-—x)+(2x2+6xy+8x)
7
11
(—xy+2y2-9)+(x2-—xy-3y2+4)
66
11
(xy-—y+—)-(xy+x-8)
63
(y+5x+2z2)+(y-5x+3z2)
(6m2-7m+4)-(9m-n+2)
(3x2-9x+8)+6(x2+5x)
-7(x2+2)-9(x2-3)
-(x2y+7xy-3)+7(x2y-2xy+5)
55
(—x2+30x-11y)+(—x2-16x-23y)
44
11
-—(3k3-2k2+4)+—(9k3+8k2+8k)
62
(8k2+3k)+(3k2+8k-8)
(6a2-a+2b)-(9a2-5a+6b)
7x2-(9x2+4x+8)-(x-6)
3y2-(6x2-y)+(3x2-2y2)
5
(9x2+5xy-—x)-(9x2+9xy-5x)
4
13
(—xy-3y2+2)+(x2-—xy+3y2-4)
84
11
(xy+—y+—)+(xy-x-3)
66
(5y-8x-4z2)-(9y-3x+z2)
(2m2+8m-3)+(3m+5n-4)
(x2-2x-7)+2(6x2-7x)
-5(x2-4)+8(x2+5)
-(x2y-4xy+6)-2(x2y+7xy-7)
68
(—x2+14x+14y)-(—x2-20x+16y)
77
11
-—(k3+3k2+5)+—(2k3+k2+3k)
43
(k2-5k)-(4k2+9k+6)
(4a2-8a-8b)+(3a2-4a+b)
x2-(6x2-7x-3)+(3x+4)
8y2-(8x2-y)-(9x2-4y2)
1
(9x2-8xy-—x)+(7x2+xy-4x)
6
69
(—xy+3y2+4)-(x2+—xy-5y2-2)
58
51
(xy+—y+—)-(xy-x+6)
48
(y-4x+z2)+(7y-9x+6z2)
(6m2-m-3)+(8m-2n+8)
(3x2+6x-1)+6(3x2+9x)
-8(x2+4)+6(x2+3)
-(x2y+4xy-9)+6(x2y-5xy+8)
11
(—x2+11x-13y)-(—x2+12x-11y)
44
11
-—(9k3+8k2-7)+—(6k3-9k2+8k)
62
(2k2-6k)-(5k2+4k-7)
(a2+8a+9b)+(9a2+6a+9b)
3x2+(3x2+x+3)+(2x+2)
8y2-(4x2+y)-(2x2+2y2)