七年级数学下册计算题大全73.docx
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七年级数学下册计算题大全73
(7k2+9k)+(6k2-k+1)
(2a2-6a-7b)+(6a2-6a+2b)
5x2+(x2+5x-1)+(5x-9)
5y2+(9x2+y)-(7x2+8y2)
8
(3x2+2xy+—x)-(3x2+6xy+9x)
7
76
(—xy-2y2-9)+(x2+—xy+9y2-8)
67
91
(xy+—y-—)+(xy-x+6)
88
(4y-6x-3z2)+(7y-5x-z2)
(4k2+5k)+(9k2+k-1)
(7a2+2a+b)-(4a2-8a+3b)
3x2+(3x2-2x-6)+(4x+4)
3y2-(8x2-y)-(9x2-4y2)
1
(7x2+9xy-—x)+(8x2-2xy-8x)
6
11
(—xy-9y2+3)+(x2+—xy+7y2+1)
43
11
(xy-—y-—)-(xy-x-6)
64
(6y-7x+7z2)+(8y+4x-5z2)
(8k2+8k)+(5k2-3k-2)
(8a2+2a+8b)+(3a2-3a+6b)
6x2+(9x2-7x-9)+(6x-2)
5y2-(x2-y)+(5x2+5y2)
7
(7x2+4xy+—x)-(8x2-2xy-2x)
6
12
(—xy+8y2-3)-(x2-—xy+7y2+9)
83
61
(xy-—y-—)+(xy+x+1)
58
(y-2x+2z2)-(9y-x+4z2)
(k2+6k)+(9k2+9k-1)
(9a2-5a+b)-(8a2-6a+9b)
x2+(6x2-9x-6)+(x+3)
5y2-(2x2+y)+(2x2+3y2)
8
(5x2-2xy+—x)-(3x2+9xy-6x)
7
11
(—xy+2y2-8)+(x2+—xy+y2+3)
55
58
(xy-—y-—)-(xy+x+1)
47
(4y+5x+5z2)-(2y-4x+7z2)
(7k2+2k)-(4k2-5k+4)
(5a2-7a+2b)+(2a2-a-3b)
6x2+(3x2+7x-8)+(6x-1)
9y2-(5x2-y)+(7x2-8y2)
9
(8x2-8xy-—x)+(4x2-4xy+x)
8
11
(—xy-5y2+3)-(x2-—xy-6y2+1)
57
22
(xy+—y+—)-(xy+x+4)
33
(6y-6x-7z2)-(5y+3x-9z2)
(7k2-4k)+(6k2-5k+6)
(5a2-4a-4b)+(2a2-7a-b)
2x2-(2x2+6x+6)-(8x+5)
3y2-(3x2+y)-(7x2+3y2)
6
(x2+7xy+—x)+(x2-5xy+2x)
7
11
(—xy+8y2+2)+(x2+—xy-2y2+9)
83
13
(xy-—y+—)-(xy-x-9)
64
(4y+4x+4z2)+(2y-7x+8z2)
(5k2-2k)-(7k2+8k+9)
(2a2+5a+4b)+(4a2+9a+6b)
4x2+(3x2-9x-1)+(6x+4)
5y2-(9x2-y)-(7x2-7y2)
6
(9x2-3xy+—x)-(x2-7xy+6x)
5
69
(—xy+7y2+7)+(x2+—xy-7y2+1)
78
16
(xy-—y-—)-(xy+x-7)
57
(9y-x-9z2)+(8y+5x-3z2)
(5k2+9k)-(4k2-7k-6)
(4a2+a+2b)-(2a2-5a+3b)
3x2-(2x2-8x-1)+(5x-7)
6y2+(6x2+y)+(3x2-4y2)
1
(4x2-xy-—x)+(3x2+3xy-2x)
5
94
(—xy-6y2-5)+(x2-—xy+8y2-1)
83
11
(xy-—y-—)+(xy-x-8)
57
(6y+7x+5z2)-(7y-6x-2z2)
(3k2-4k)+(4k2+3k-1)
(a2+5a+9b)+(a2-a+b)
9x2+(9x2+6x-3)-(6x+9)
2y2-(5x2-y)-(x2+6y2)
7
(x2+9xy-—x)-(7x2-5xy-3x)
8
36
(—xy-7y2+8)+(x2+—xy-8y2-7)
45
11
(xy+—y+—)-(xy-x-9)
55
(8y+9x+9z2)-(4y-7x+6z2)
(4k2-3k)+(9k2-8k+6)
(3a2-9a-b)-(8a2-5a+5b)
3x2+(8x2+6x-3)+(2x+4)
3y2+(6x2-y)+(2x2+5y2)
1
(9x2+5xy-—x)-(4x2+8xy+9x)
3
11
(—xy+2y2-9)+(x2-—xy-3y2-3)
78
41
(xy-—y+—)+(xy+x+5)
55
(y+9x+7z2)+(y+2x-6z2)
(5k2+5k)+(5k2+2k+2)
(2a2-6a-7b)-(7a2+7a+5b)
3x2-(5x2-8x-3)+(7x+6)
4y2-(7x2+y)-(6x2-y2)
1
(7x2-6xy+—x)+(7x2+8xy-6x)
5
19
(—xy+5y2+5)+(x2-—xy-8y2-5)
78
11
(xy-—y-—)+(xy+x+7)
33
(y-8x-4z2)+(y+8x-3z2)
(4k2+7k)-(k2+2k-5)
(3a2-9a-5b)-(8a2+4a-7b)
x2+(8x2+4x+8)-(3x+7)
7y2+(8x2-y)+(2x2+6y2)
1
(7x2+5xy-—x)+(6x2+5xy+7x)
6
19
(—xy+2y2+6)+(x2+—xy+5y2-6)
68
16
(xy+—y+—)-(xy-x-6)
35
(9y+2x-3z2)-(y-2x-6z2)
(k2+6k)+(k2-8k+7)
(5a2-7a-4b)+(2a2+6a+4b)
9x2+(8x2-7x-5)-(9x-5)
8y2+(2x2-y)-(3x2-9y2)