北师大版七年级数学下册整式的加减法计算题精选 110.docx
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北师大版七年级数学下册整式的加减法计算题精选110
91
(xy+—y-—)+(xy+x-2)
88
(5y-6x+4z2)-(9y+7x-6z2)
(6k2+9k)-(3k2-8k+2)
(5a2+5a-5b)+(8a2+4a+2b)
2x2-(5x2-3x+6)-(4x-7)
7y2+(7x2+y)+(2x2+2y2)
5
(4x2+5xy+—x)+(6x2-2xy-5x)
6
11
(—xy+6y2+7)-(x2-—xy-6y2+5)
74
13
(xy+—y-—)+(xy-x+4)
54
(4y+2x-7z2)-(6y+2x-9z2)
(5k2-4k)-(2k2+3k+9)
(2a2+9a-b)+(4a2-8a-9b)
9x2+(8x2-4x-8)+(5x+5)
y2+(3x2-y)-(4x2+8y2)
2
(7x2+4xy-—x)+(x2+8xy+3x)
3
11
(—xy-7y2+1)+(x2+—xy-5y2-8)
45
71
(xy-—y+—)-(xy+x+6)
64
(6y-3x+9z2)+(7y+2x+6z2)
(7k2+k)+(7k2-6k-5)
(6a2+2a-4b)+(4a2+9a-2b)
x2-(4x2+7x+7)-(6x+6)
3y2-(5x2-y)-(7x2-2y2)
4
(7x2+2xy-—x)-(4x2+6xy-9x)
5
31
(—xy+4y2+6)-(x2+—xy+6y2+2)
44
11
(xy+—y+—)+(xy+x+4)
43
(6y+3x-8z2)+(y+2x+6z2)
(k2-k)+(6k2-k+9)
(2a2+5a+9b)+(8a2+a-3b)
5x2+(3x2+6x+4)+(7x+3)
3y2+(8x2-y)+(3x2-8y2)
6
(7x2-6xy+—x)+(3x2-xy-6x)
5
51
(—xy-y2+9)+(x2-—xy-3y2+5)
64
12
(xy+—y-—)-(xy+x-7)
43
(2y+7x-7z2)-(4y-x+6z2)
(2k2+9k)+(7k2+9k+1)
(a2-a+5b)+(2a2+4a+2b)
4x2-(5x2+2x+4)-(6x+2)
4y2+(3x2+y)-(4x2-y2)
1
(5x2+7xy-—x)-(4x2+8xy-4x)
3
31
(—xy-8y2+2)+(x2+—xy+7y2+6)
47
19
(xy+—y+—)+(xy-x-8)
88
(4y+4x+5z2)-(6y+3x-6z2)
(7k2-6k)+(k2+k+2)
(9a2-a+b)-(6a2+2a-3b)
9x2-(7x2+x-8)+(7x+2)