七年级数学下册计算题大全250.docx
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七年级数学下册计算题大全250.docx
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七年级数学下册计算题大全250
4
(7x2-8xy-—x)-(2x2-9xy+6x)
3
11
(—xy-7y2+2)-(x2+—xy-y2+7)
54
41
(xy+—y-—)+(xy+x-8)
55
(8y+3x+9z2)+(5y+4x+5z2)
(2k2+9k)-(8k2+5k+2)
(3a2-4a+6b)-(2a2+8a-8b)
5x2+(5x2-3x+8)+(9x-9)
5y2+(9x2-y)-(3x2+4y2)
7
(5x2+9xy-—x)-(3x2-6xy-3x)
8
16
(—xy+4y2-2)+(x2+—xy+3y2-1)
57
41
(xy+—y+—)-(xy-x+4)
54
(2y-6x+6z2)+(8y-7x+3z2)
(6k2-2k)+(9k2+k+4)
(9a2+9a+6b)+(7a2-5a-2b)
7x2-(9x2-3x+9)-(4x-9)
2y2+(x2-y)+(8x2-y2)
1
(x2-2xy-—x)+(x2+2xy+9x)
5
65
(—xy-7y2+7)-(x2+—xy-y2+1)
74
26
(xy+—y-—)+(xy-x+4)
35
(4y+6x-7z2)-(3y-x+6z2)
(9k2-8k)+(5k2+k-9)
(2a2+5a+4b)-(7a2-8a-3b)
7x2+(9x2-5x+7)+(9x-2)
4y2+(5x2+y)+(9x2+8y2)
1
(3x2+3xy-—x)+(3x2+6xy+6x)
3
11
(—xy+3y2-9)+(x2+—xy+2y2+7)
36
18
(xy+—y-—)+(xy-x+3)
57
(7y+x+3z2)-(5y+7x-2z2)
(k2+5k)+(k2+4k-1)
(6a2+9a-6b)+(9a2-2a-9b)
8x2+(6x2-2x+5)-(5x+9)
7y2+(3x2+y)-(3x2-7y2)
4
(2x2+8xy-—x)+(6x2-6xy+5x)
5
26
(—xy+8y2-5)+(x2+—xy+7y2-2)
37
96
(xy-—y+—)-(xy+x+7)
85
(y+6x-8z2)-(y+x-7z2)
(2k2-3k)+(5k2+5k-2)
(8a2-9a-3b)-(9a2-3a+5b)
5x2-(9x2-2x-8)+(5x-1)
y2-(3x2-y)+(6x2+2y2)
7
(5x2-5xy-—x)+(4x2+8xy-8x)
8
18
(—xy-5y2-9)+(x2+—xy+y2+7)
37
17
(xy-—y-—)-(xy+x-7)
78
(8y+7x-7z2)-(y-7x-4z2)
(4k2-7k)-(7k2+7k+3)
(2a2-5a+4b)-(6a2+9a-b)
7x2-(5x2-7x-4)+(4x-8)
5y2-(4x2+y)+(4x2-9y2)
1
(6x2-5xy+—x)-(5x2+xy+3x)
3
14
(—xy-9y2+4)-(x2-—xy+2y2-9)
63
41
(xy+—y+—)-(xy+x-2)
54
(7y-6x+3z2)+(y-2x+5z2)
(2k2+k)+(8k2-6k+3)
(4a2+4a+8b)+(a2+6a-7b)
x2+(6x2+7x+9)-(6x+7)
2y2+(x2-y)-(6x2-7y2)
6
(x2+5xy+—x)+(6x2+2xy+5x)
7
41
(—xy+y2-8)-(x2-—xy+8y2-4)
33
19
(xy+—y+—)+(xy+x+2)
48
(7y-8x+5z2)-(y+9x+5z2)
(3k2-5k)+(6k2-7k+6)
(8a2-2a+9b)-(2a2-5a+2b)
2x2-(8x2-3x+8)+(2x+6)
7y2-(4x2+y)+(7x2+7y2)
1
(x2+2xy+—x)+(2x2+xy-3x)
5
34
(—xy-y2+6)-(x2-—xy-3y2+8)
45
16
(xy+—y-—)-(xy+x+8)
47
(5y-7x+9z2)+(7y+8x+5z2)
(4k2+4k)-(5k2+8k-1)
(7a2+4a-8b)+(8a2+4a+7b)
6x2+(7x2-4x+9)-(6x+3)
2y2+(5x2-y)+(9x2-7y2)
1
(6x2-8xy-—x)+(8x2+6xy+3x)
5
16
(—xy-y2-7)-(x2-—xy+8y2-6)
57
17
(xy+—y+—)-(xy+x-3)
36
(4y+6x-z2)+(6y+8x+7z2)
(7k2-k)+(3k2+7k+6)
(8a2-6a-2b)+(9a2+8a-b)
4x2+(8x2-2x-8)+(7x+5)
8y2+(5x2-y)+(7x2+7y2)
5
(2x2-3xy+—x)+(7x2-4xy-7x)
4
12
(—xy-5y2-8)+(x2-—xy+2y2-6)
53
11
(xy-—y+—)-(xy-x-1)
35
(6y+3x-7z2)+(2y-x+z2)
(5k2+3k)-(9k2-4k-7)
(a2-9a+3b)+(3a2-2a-9b)
x2+(8x2+6x-8)-(3x-8)
4y2-(x2+y)+(x2-y2)
5
(2x2-6xy-—x)-(2x2-xy-4x)
6
81
(—xy-3y2-4)-(x2+—xy-6y2-4)
75
69
(xy-—y+—)-(xy-x-2)
78
(4y-8x-7z2)+(8y+4x+2z2)
(k2-2k)-(7k2-7k+4)
(3a2+6a+3b)-(9a2-2a-3b)
4x2-(7x2+3x+4)+(8x-3)
2y2+(x2+y)-(8x2-5y2)
3
(4x2-6xy-—x)-(7x2+5xy-2x)
4
71
(—xy+3y2-6)-(x2+—xy-9y2-9)
86
84
(xy-—y-—)+(xy-x-5)
73
(6y+6x+3z2)+(7y+5x+3z2)
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- 七年 级数 下册 算题 大全 250