初一数学下册计算题天天练 26.docx
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初一数学下册计算题天天练26
19
(xy+—y-—)-(xy+x+4)
88
(7y-2x+9z2)+(2y-3x-8z2)
(9m2-9m-1)+(8m+5n+4)
(6x2+2x+6)+2(x2+8x)
-8(x2-3)+9(x2-8)
-(x2y+6xy+5)-2(x2y-7xy+6)
11
(—x2-11x-14y)-(—x2-16x-11y)
44
11
-—(6k3-4k2-3)+—(3k3-2k2-4k)
64
(2k2+7k)-(6k2-4k+9)
(3a2+6a-4b)-(6a2-3a+8b)
3x2+(4x2+6x+7)-(x+9)
7y2-(5x2+y)+(8x2+4y2)
4
(x2-9xy-—x)+(2x2-8xy+4x)
3
18
(—xy+4y2+6)-(x2-—xy+5y2-8)
67
71
(xy+—y-—)+(xy-x-1)
85
(5y-6x-4z2)+(3y+x-8z2)
(7m2-m-9)-(4m+6n-4)
(3x2-8x-8)-7(9x2+2x)
-4(x2+5)-5(x2+3)
-(x2y+4xy+6)+2(x2y-8xy-5)
77
(—x2-23x-19y)+(—x2-13x-30y)
66
11
-—(6k3-4k2-2)-—(6k3+3k2+3k)
65
(k2-2k)+(9k2+8k-7)
(3a2-a+9b)+(a2-a-7b)
7x2+(8x2-x-6)+(9x-2)
8y2-(5x2+y)-(6x2+2y2)
7
(x2+4xy+—x)-(x2+5xy-5x)
8
91
(—xy-2y2-1)+(x2+—xy-3y2-2)
87
63
(xy-—y-—)+(xy-x-8)
74
(2y-9x+6z2)-(3y+5x-8z2)
(4m2-7m-9)+(5m-7n-6)
(5x2-4x-7)+2(6x2+9x)
-3(x2+8)-4(x2+6)
-(x2y+7xy-8)+6(x2y+2xy-2)
91
(—x2-30x-18y)-(—x2-17x-20y)
88
11
-—(k3-9k2-5)-—(5k3+6k2+3k)
66
(2k2-3k)-(6k2-4k-4)
(4a2+7a-2b)+(2a2+6a-7b)
3x2-(9x2-7x-9)+(x-5)
9y2-(x2+y)+(2x2+y2)
1
(x2+6xy-—x)-(6x2-xy+8x)
3
69
(—xy-3y2-2)-(x2-—xy+6y2+1)
78
16
(xy-—y-—)+(xy-x+5)
45
(3y+5x+z2)-(9y+7x+2z2)
(m2-4m+5)+(8m+3n+4)
(9x2-x+2)-8(7x2-2x)
-4(x2+9)-2(x2-2)
-(x2y-7xy+9)-2(x2y+4xy+4)
22
(—x2-23x-14y)-(—x2-15x-26y)
33
11
-—(4k3+8k2+7)-—(8k3+2k2+9k)
65
(9k2-6k)-(8k2+k+3)
(4a2+5a+7b)+(9a2+2a-8b)
5x2+(6x2-6x-9)+(4x-7)
2y2+(5x2+y)-(3x2-8y2)
3
(3x2+6xy+—x)+(9x2+5xy+3x)
4
73
(—xy+6y2-5)-(x2-—xy-4y2+8)
84
21
(xy-—y+—)-(xy-x-5)
34
(6y-2x-5z2)+(3y+7x+2z2)
(m2+m-4)+(7m-3n-2)
(8x2-6x-9)-5(5x2-7x)
-8(x2+6)-9(x2-1)
-(x2y-9xy-6)+5(x2y+8xy+5)
57
(—x2-16x+11y)+(—x2+14x-24y)
66
11
-—(7k3-2k2+5)+—(2k3-6k2+5k)
22
(4k2+7k)-(6k2+5k+9)
(6a2+8a+4b)-(3a2-9a+4b)
5x2+(5x2+2x+6)-(8x+1)
3y2+(x2+y)+(6x2+7y2)
6
(3x2-7xy+—x)-(6x2+8xy-9x)
7
15
(—xy-8y2+8)-(x2-—xy-3y2-5)
64
13
(xy+—y+—)-(xy+x+2)
64
(y+8x-4z2)+(8y+6x+z2)
(7m2+8m-3)+(5m-6n+9)
(6x2+5x-6)-5(3x2-2x)
-7(x2+5)-3(x2-9)
-(x2y-3xy-2)-4(x2y+9xy+6)
51
(—x2+15x+17y)-(—x2+15x+11y)
66
11
-—(3k3-8k2-9)+—(2k3-k2+2k)
64
(6k2+3k)-(8k2-6k-6)
(a2-2a+7b)-(3a2+4a+b)
9x2-(6x2-6x+6)-(2x-7)
7y2-(4x2+y)-(x2+y2)
1
(x2+6xy-—x)+(8x2+3xy-9x)
3
97
(—xy+9y2+3)+(x2+—xy+2y2-2)
88
86
(xy+—y-—)-(xy+x+8)
77
(6y-x+z2)+(4y+x+8z2)
(6m2+3m+2)-(3m-4n+7)
(2x2+9x+6)-3(7x2-2x)
-7(x2+1)+4(x2+1)
-(x2y+5xy+6)+2(x2y-3xy-7)
77
(—x2-17x+20y)+(—x2-13x-15y)
88
11
-—(4k3-2k2-4)-—(7k3+k2+5k)
46
(9k2-9k)+(4k2+5k+2)
(9a2+4a-2b)-(6a2+2a-3b)
9x2-(5x2+9x-9)+(8x-7)