初一数学下册计算题天天练 10.docx
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初一数学下册计算题天天练10
97
(—x2+25x+15y)+(—x2-20x-12y)
88
11
-—(5k3-9k2-6)+—(3k3-7k2-6k)
42
(5k2-k)+(2k2+6k-4)
(3a2+a-b)-(8a2+2a+5b)
2x2-(7x2-2x-5)-(5x+2)
8y2+(3x2+y)+(4x2+9y2)
1
(6x2+7xy-—x)+(x2+7xy+9x)
4
55
(—xy-y2-3)+(x2+—xy-9y2+6)
64
11
(xy-—y-—)-(xy-x-8)
65
(9y-3x-8z2)+(9y+6x-2z2)
(5m2-5m-2)-(3m+2n+3)
(7x2+3x+6)-7(2x2+9x)
-8(x2-3)+2(x2+5)
-(x2y+5xy-4)+7(x2y-6xy-4)
11
(—x2-17x+18y)-(—x2-13x+17y)
77
11
-—(7k3+4k2-9)-—(7k3-8k2+9k)
44
(7k2+4k)-(k2+8k-4)
(5a2+6a+b)-(4a2-a+2b)
2x2+(3x2+x-9)+(3x-5)
5y2-(2x2+y)+(8x2-3y2)
1
(2x2+5xy+—x)+(x2-8xy-3x)
8
12
(—xy+y2+3)-(x2-—xy+y2+9)
53
65
(xy+—y+—)-(xy-x+2)
54
(7y+4x-8z2)+(2y+8x+z2)
(3m2+2m-3)-(7m-3n-3)
(7x2+2x+8)+4(4x2-3x)
-6(x2+3)-6(x2-7)
-(x2y-5xy+2)-8(x2y+8xy-7)
57
(—x2+20x-10y)+(—x2+17x+21y)
66
11
-—(3k3+4k2+7)+—(8k3-7k2-9k)
66
(4k2+2k)+(7k2-6k-5)
(6a2+9a-5b)-(a2+8a+7b)
7x2-(8x2-x+5)+(9x+5)
5y2-(9x2-y)+(8x2-y2)
1
(8x2-3xy-—x)+(6x2-8xy+6x)
4
21
(—xy-6y2-1)+(x2-—xy+4y2+5)
34
15
(xy-—y-—)-(xy+x-4)
86
(4y+2x+9z2)-(3y+x+z2)
(m2+6m-8)-(2m+5n+1)
(7x2-5x-8)+7(6x2+4x)
-5(x2-6)-3(x2-3)
-(x2y+8xy+9)+8(x2y-5xy+9)
14
(—x2-14x-20y)+(—x2+16x+24y)
55
11
-—(8k3+5k2+9)-—(6k3-k2+7k)
25
(7k2-6k)+(4k2+7k+8)
(a2+3a+4b)+(6a2+9a-b)
4x2+(3x2-3x-4)+(3x+9)
2y2+(4x2+y)-(5x2+5y2)
6
(6x2+4xy+—x)+(9x2+2xy+5x)
5
98
(—xy-7y2-7)-(x2-—xy+7y2-4)
87
12
(xy+—y+—)-(xy-x-8)
53
(2y-7x-2z2)-(7y-9x-3z2)
(3m2-5m-4)-(7m+n-9)
(4x2+5x-6)+4(4x2-8x)
-5(x2+9)+2(x2+3)
-(x2y+3xy-3)+3(x2y+2xy-9)
24
(—x2-25x-12y)+(—x2+13x+10y)
33
11
-—(2k3+k2-8)-—(5k3+9k2+3k)
46
(5k2-9k)-(2k2-5k+7)
(a2-5a+7b)+(4a2-9a-b)
8x2-(x2+8x+3)+(5x-8)
9y2-(9x2-y)+(8x2-3y2)
5
(4x2-2xy+—x)-(4x2-4xy-2x)
4
58
(—xy-3y2+2)-(x2-—xy-9y2+9)
47
48
(xy-—y+—)+(xy-x+3)
57
(4y+2x+5z2)-(4y-8x-6z2)
(m2+6m+7)+(m-9n-6)
(6x2+2x-9)+8(8x2-6x)
-2(x2+6)+7(x2-8)
-(x2y+4xy-3)+5(x2y-4xy+5)
46
(—x2+22x+13y)-(—x2+11x+28y)
55
11
-—(2k3+9k2-3)-—(4k3+4k2-9k)
42
(4k2+7k)-(4k2-k-4)
(5a2+2a+b)-(7a2+5a-3b)
8x2-(6x2+2x+7)-(5x+9)
3y2-(5x2+y)+(9x2-6y2)
6
(7x2+9xy+—x)-(2x2-8xy-6x)
7
17
(—xy-y2+7)-(x2-—xy-4y2+4)
66
11
(xy-—y+—)-(xy-x-2)
75
(4y+9x-9z2)+(2y-x-4z2)
(9m2-7m+7)-(4m+2n-1)
(x2+3x+3)+8(9x2-8x)
-5(x2-1)+3(x2-1)
-(x2y-5xy-8)-9(x2y-5xy-6)
16
(—x2-13x-11y)+(—x2+14x+23y)
55
11
-—(5k3-7k2+8)+—(5k3-5k2+6k)
23
(9k2-9k)-(3k2+6k+5)
(a2-5a-7b)+(7a2+6a+9b)
7x2+(9x2+4x+8)+(8x+5)
7y2-(5x2-y)-(x2-8y2)
1
(6x2-9xy+—x)-(x2-6xy-3x)
4
74
(—xy-3y2-6)-(x2-—xy-7y2+4)
83
11
(xy+—y-—)-(xy-x-2)
55
(4y-4x+6z2)-(4y-8x+6z2)
(6m2-3m-5)-(6m+2n-3)