七年级数学下册计算题大全105.docx
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七年级数学下册计算题大全105
(2k2-7k)-(k2+4k+4)
(2a2-4a+9b)-(4a2+5a-b)
x2-(x2+8x+9)-(6x+4)
3y2+(2x2-y)+(9x2-3y2)
6
(7x2+6xy-—x)+(4x2+8xy+6x)
7
14
(—xy+7y2+7)+(x2+—xy+8y2-8)
55
17
(xy-—y-—)-(xy+x+1)
76
(y+8x-9z2)+(y+8x-4z2)
(8k2+5k)+(4k2-3k+7)
(3a2+a+7b)-(6a2+a-8b)
8x2-(7x2-8x+5)+(8x-5)
6y2+(7x2+y)+(4x2+4y2)
7
(4x2+4xy-—x)+(6x2-5xy+8x)
8
13
(—xy+3y2-6)-(x2-—xy-6y2+1)
44
16
(xy+—y+—)+(xy-x+8)
65
(8y-x-3z2)+(4y-8x+3z2)
(5k2+7k)-(3k2+4k-7)
(3a2+9a+b)+(a2+6a+3b)
4x2+(x2+4x+2)+(5x-8)
4y2+(x2+y)+(5x2+6y2)
1
(7x2-9xy-—x)+(x2-8xy-2x)
6
31
(—xy-8y2-8)-(x2-—xy+4y2-6)
47
21
(xy+—y-—)+(xy+x+6)
37
(y-6x+6z2)+(8y-x-3z2)
(7k2-7k)+(k2-k+8)
(a2-8a-6b)-(7a2-6a-2b)
9x2+(2x2+3x+8)+(5x+2)
y2+(9x2+y)-(9x2+4y2)
1
(x2+6xy-—x)-(5x2+xy-x)
6
12
(—xy-8y2+6)+(x2+—xy+4y2+6)
33
37
(xy-—y+—)-(xy-x-3)
46
(8y-7x-8z2)-(4y-5x+5z2)
(7k2-9k)+(5k2-7k-4)
(a2-9a-b)-(3a2-9a+5b)
2x2+(5x2-9x+8)+(7x-6)
4y2+(2x2-y)+(6x2-4y2)
5
(4x2-9xy+—x)-(6x2-xy-9x)
6
14
(—xy+8y2-3)+(x2+—xy+9y2-8)
45
76
(xy+—y+—)+(xy-x+9)
87
(8y-5x+5z2)+(y-8x-2z2)
(3k2+k)-(9k2+k-4)
(4a2-5a-4b)-(7a2-5a-b)
7x2-(3x2-7x+5)+(7x-5)
8y2+(6x2-y)-(5x2+7y2)
1
(5x2-8xy-—x)-(3x2-5xy+3x)
6
19
(—xy-4y2+6)-(x2+—xy+5y2-2)
48
55
(xy+—y-—)-(xy+x+5)
66
(8y+9x+5z2)+(5y+5x+2z2)
(9k2+3k)-(7k2-8k-3)
(8a2-6a-9b)-(8a2-4a-9b)
9x2-(6x2+6x+9)+(9x+9)
4y2+(7x2-y)-(9x2+3y2)
1
(7x2-4xy+—x)-(3x2+9xy+5x)
5
95
(—xy+4y2-5)-(x2-—xy+6y2+3)
84
31
(xy+—y+—)-(xy-x+6)
45
(7y-6x+8z2)+(8y+5x+6z2)
(6k2-6k)+(2k2-9k+4)
(9a2+2a-9b)+(6a2+8a+9b)
x2+(7x2+9x-2)-(6x+4)
8y2-(3x2+y)+(8x2-8y2)
6
(3x2+9xy+—x)-(4x2+xy+2x)
7
11
(—xy+2y2-4)-(x2+—xy+9y2+6)
53
71
(xy-—y-—)+(xy+x-1)
68
(7y-8x+3z2)-(4y+5x+8z2)
(7k2-2k)-(9k2-5k-3)
(2a2+2a-8b)-(9a2-4a-b)
8x2-(4x2+9x+6)+(9x-7)
y2-(2x2-y)+(3x2-4y2)
7
(7x2+8xy+—x)-(6x2+6xy-2x)
8
16
(—xy-4y2-1)-(x2+—xy+8y2-1)
37
11
(xy-—y+—)+(xy-x+6)
64
(8y-6x+2z2)-(2y+6x+4z2)
(9k2-8k)-(k2+2k+7)
(4a2-4a+b)-(7a2+5a+4b)
2x2-(x2-2x+2)+(8x-1)
3y2-(3x2+y)+(9x2+2y2)
1
(8x2+4xy-—x)-(4x2+9xy-2x)
4
91
(—xy-y2+2)-(x2-—xy+y2+1)
86
11
(xy-—y-—)-(xy-x-4)
65
(5y+2x+4z2)-(8y+2x+8z2)
(6k2-8k)+(6k2+6k+7)
(6a2+2a-8b)-(9a2+a-b)
8x2+(6x2-6x+3)+(4x-4)
8y2+(6x2-y)+(9x2-6y2)
1
(3x2-9xy+—x)+(8x2+8xy+9x)
6
14
(—xy+7y2-2)-(x2-—xy+6y2+8)
65
61
(xy+—y-—)+(xy-x+5)
58
(2y+5x+2z2)-(8y+6x+6z2)
(6k2-6k)-(2k2-k+6)
(9a2-5a-6b)+(3a2+3a-3b)
6x2-(5x2+9x-9)-(7x+6)
4y2+(x2+y)-(3x2+9y2)
1
(5x2-3xy+—x)+(7x2+9xy-4x)
3
65
(—xy+y2+2)-(x2+—xy+y2+7)
76
14
(xy+—y-—)-(xy-x+8)
75
(y+3x+z2)-(2y+7x-7z2)
(3k2+4k)-(6k2-6k+4)
(3a2-2a-7b)-(6a2-a-7b)
x2-(4x2+6x+8)+(8x-2)
y2-(3x2+y)-(6x2+9y2)