北师大版七年级数学下册整式的加减法计算题精选 175.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175
8y2-(5x2-y)-(6x2-2y2)
1
(8x2-5xy-—x)+(x2-6xy+3x)
4
76
(—xy+2y2+7)-(x2+—xy+6y2+6)
85
55
(xy+—y-—)-(xy+x-4)
44
(7y+4x-5z2)+(8y+x-2z2)
(3k2-7k)+(7k2+k-2)
(6a2-2a-5b)+(7a2-6a+b)
2x2+(7x2+6x-1)-(5x+6)
4y2-(x2-y)+(2x2+6y2)
6
(3x2+8xy+—x)-(4x2-3xy+8x)
5
11
(—xy+9y2-2)-(x2-—xy-3y2-2)
83
11
(xy-—y-—)+(xy+x-5)
35
(9y+6x-9z2)+(6y+3x-7z2)
(8k2+8k)-(6k2-6k+6)
(3a2-5a-9b)-(9a2-9a-9b)
4x2+(3x2-7x+9)-(x+8)
4y2-(6x2+y)+(6x2+4y2)
6
(3x2+5xy-—x)+(x2-5xy+9x)
5
16
(—xy+4y2-1)-(x2+—xy-7y2+6)
85
84
(xy+—y+—)-(xy+x+7)
75
(8y+9x-7z2)+(2y+x-8z2)
(2k2+k)-(2k2-2k-7)
(6a2+3a-9b)-(a2+8a-3b)
9x2-(9x2-9x+6)+(x-7)
y2+(6x2+y)-(x2-4y2)
3
(5x2+5xy-—x)-(9x2-8xy-6x)
4
61
(—xy+2y2-9)+(x2-—xy-5y2+1)
78
14
(xy+—y+—)+(xy+x-1)
85
(y+9x+5z2)-(2y+4x-3z2)
(4k2+5k)-(6k2+3k-2)
(5a2+5a-9b)+(7a2+7a+2b)
6x2-(8x2+9x-4)+(x-6)
2y2-(3x2+y)+(x2-5y2)
1
(6x2+7xy+—x)-(3x2+8xy+9x)
8
61
(—xy-2y2-9)+(x2+—xy-8y2-7)
58
54
(xy+—y-—)-(xy-x+6)
45
(5y+6x-z2)+(6y-4x+z2)
(6k2+k)-(8k2+6k-3)
(8a2+9a-b)+(7a2-2a-6b)
2x2-(x2-7x+7)-(7x+3)
5y2+(3x2-y)+(5x2+2y2)
5
(4x2-2xy-—x)-(x2-3xy+4x)
6
71
(—xy+8y2-5)+(x2+—xy+7y2+2)
63
91
(xy-—y-—)+(xy-x-1)
85
(2y-3x+z2)+(4y+9x-2z2)