七年级数学下册计算题大全244.docx
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七年级数学下册计算题大全244
2
(x2-8xy+—x)+(6x2+8xy-x)
3
91
(—xy-2y2-8)-(x2+—xy-2y2+7)
86
21
(xy-—y-—)+(xy-x-9)
37
(7y+3x+7z2)-(y-9x+7z2)
(5k2+k)-(5k2-9k-7)
(6a2+a+b)-(a2+a+2b)
6x2+(9x2+9x-2)-(4x+9)
6y2+(5x2+y)-(4x2-8y2)
1
(7x2+8xy+—x)-(3x2+4xy+2x)
7
16
(—xy-4y2-4)-(x2-—xy+9y2-4)
85
51
(xy-—y+—)+(xy-x-6)
43
(8y-2x+2z2)-(4y+2x-z2)
(k2-8k)+(5k2-k-7)
(2a2-4a-9b)+(2a2-8a-4b)
5x2-(5x2+3x+5)-(x-3)
7y2+(4x2-y)+(2x2+6y2)
1
(4x2+6xy+—x)+(7x2-4xy-x)
3
17
(—xy+6y2-2)+(x2-—xy+7y2+9)
48
32
(xy+—y+—)-(xy+x+5)
43
(7y-9x+8z2)-(4y+9x-8z2)
(7k2+7k)+(8k2-6k+1)
(7a2-8a-2b)+(7a2-a-4b)
x2+(9x2-6x+7)+(6x-1)
y2-(9x2+y)+(4x2+8y2)
6
(6x2-xy-—x)+(5x2+8xy-9x)
7
15
(—xy+6y2+9)-(x2+—xy+4y2+8)
74
57
(xy+—y-—)+(xy-x-2)
66
(9y+2x+8z2)+(4y+8x-5z2)
(8k2+5k)+(4k2-7k-2)
(2a2+7a-2b)-(2a2-2a+6b)
9x2+(x2-3x-5)+(2x-4)
y2-(9x2+y)-(6x2-9y2)
1
(7x2-9xy+—x)+(3x2+9xy+2x)
5
12
(—xy-2y2-5)-(x2+—xy+7y2-8)
73
18
(xy-—y-—)-(xy-x+9)
77
(7y-4x-6z2)-(y-4x+6z2)
(6k2+5k)-(4k2-6k-1)
(8a2-6a-4b)+(9a2-a-3b)
x2+(2x2-4x-6)+(6x+3)
8y2+(5x2-y)-(5x2+6y2)
1
(7x2+8xy-—x)-(9x2+xy-7x)
3
43
(—xy-9y2+4)+(x2+—xy+9y2-3)
54
34
(xy+—y+—)+(xy+x+8)
43
(7y+2x+2z2)-(5y+7x+8z2)
(k2-k)+(k2+7k-1)
(5a2-4a+b)-(6a2-3a-8b)
7x2+(5x2-2x+6)-(6x+1)
4y2+(6x2-y)+(6x2+7y2)
4
(8x2-5xy-—x)-(8x2+6xy-7x)
5
11
(—xy-6y2-2)-(x2+—xy+y2+1)
88
16
(xy-—y-—)+(xy-x-4)
57
(5y-9x+5z2)-(5y+4x+2z2)
(6k2+6k)-(8k2+3k-4)
(4a2+4a-b)+(a2-2a-3b)
5x2+(7x2-4x+2)-(3x-4)
4y2+(9x2-y)+(5x2+8y2)
3
(2x2+8xy-—x)+(8x2+9xy+9x)
4
16
(—xy+8y2-5)+(x2+—xy-6y2-6)
77
51
(xy+—y+—)+(xy+x+5)
43
(6y+x-9z2)-(6y-7x-z2)
(6k2-6k)+(k2-2k-1)
(8a2+5a-3b)+(5a2+8a-8b)
x2-(2x2+9x+1)-(2x-5)
9y2+(2x2+y)+(6x2-2y2)
1
(8x2-9xy+—x)-(x2-7xy-7x)
8
15
(—xy+4y2-4)-(x2-—xy-8y2+8)
46
12
(xy-—y-—)+(xy-x+6)
53
(2y-9x+5z2)-(8y+7x-9z2)
(2k2-3k)+(7k2-k+8)
(7a2+6a+7b)-(3a2+2a-3b)
9x2-(9x2+3x+7)+(5x+9)
3y2-(9x2+y)-(3x2+6y2)
1
(5x2+xy+—x)-(2x2+7xy+5x)
6
92
(—xy+3y2-8)-(x2-—xy-5y2+1)
83
11
(xy-—y-—)-(xy+x+3)
47
(4y+6x-3z2)+(5y-5x+z2)
(8k2+4k)-(8k2+4k+6)
(2a2-4a+9b)+(8a2+5a+b)
2x2-(2x2+8x+4)-(7x+9)
3y2+(5x2+y)-(6x2+5y2)
1
(2x2-4xy+—x)+(6x2+4xy+8x)
3
46
(—xy-3y2-5)+(x2+—xy+5y2+4)
37
65
(xy-—y+—)-(xy+x-3)
74
(5y-6x+3z2)-(7y+x+4z2)
(6k2+6k)-(8k2+5k-5)
(2a2+9a-2b)-(7a2+2a-7b)
6x2-(5x2-6x+7)-(9x+1)
8y2-(2x2-y)-(7x2-8y2)
6
(4x2-7xy+—x)+(4x2+7xy+8x)
5
21
(—xy+4y2-1)+(x2-—xy+9y2+9)
35
17
(xy+—y-—)+(xy-x-3)
38
(2y-5x-2z2)-(8y+6x-8z2)
(9k2-7k)-(3k2+4k+1)
(9a2-5a+6b)+(2a2+9a-4b)
x2-(2x2+x+5)+(2x+8)
9y2+(x2+y)-(2x2-5y2)
5
(8x2-5xy-—x)+(2x2-8xy-9x)
6
67
(—xy-2y2-7)+(x2+—xy-9y2-5)
76
54
(xy-—y+—)+(xy+x+7)
65
(4y+5x+5z2)+(y+3x+3z2)