北师大版七年级数学下册整式的加减法计算题精选 75.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75
(5y+5x+9z2)-(3y+7x+z2)
(5k2-3k)-(2k2-3k-7)
(2a2+a-7b)+(9a2-8a-7b)
3x2+(3x2+x+5)-(4x-3)
9y2+(6x2+y)-(7x2+9y2)
1
(5x2+8xy+—x)-(2x2+7xy+9x)
6
68
(—xy-6y2+2)+(x2+—xy+8y2+3)
77
11
(xy-—y-—)+(xy-x+3)
53
(y-3x+7z2)-(8y-6x-6z2)
(4k2-2k)+(2k2-5k+5)
(3a2-3a+8b)-(9a2-9a+9b)
9x2+(5x2-7x-9)+(2x-8)
6y2+(2x2+y)-(4x2-2y2)
1
(9x2-2xy+—x)+(2x2-6xy-4x)
5
74
(—xy-2y2+1)+(x2-—xy-2y2+2)
85
13
(xy+—y+—)-(xy+x-5)
84
(6y-3x-9z2)+(5y+3x-2z2)
(5k2-3k)+(6k2+3k+5)
(5a2+a+5b)-(4a2+6a-6b)
x2+(4x2+6x-5)-(x+2)
2y2+(4x2+y)+(4x2-3y2)
1
(8x2-2xy-—x)-(6x2-xy-x)
8
11
(—xy-7y2-6)+(x2+—xy+5y2-6)
56
71
(xy+—y+—)+(xy-x+2)
88
(7y-7x-5z2)-(9y-x-z2)
(9k2-4k)+(9k2-5k+2)
(6a2+2a-4b)+(8a2-8a+3b)
4x2-(4x2-6x+3)+(4x+7)
9y2-(2x2-y)-(x2+5y2)
1
(4x2+3xy+—x)-(2x2+2xy+2x)
7
46
(—xy-5y2+5)-(x2-—xy-4y2+9)
57
81
(xy-—y+—)+(xy+x+5)
75
(6y+5x-2z2)+(4y+3x+2z2)
(4k2-6k)+(5k2-4k-5)
(3a2-5a+2b)+(7a2-a+9b)
3x2-(5x2+5x+1)-(6x+5)
6y2+(x2-y)-(3x2+2y2)
1
(4x2-xy+—x)-(3x2-2xy-2x)
8
71
(—xy-5y2+5)+(x2+—xy-7y2-8)
63
46
(xy+—y-—)+(xy+x-5)
35
(4y+5x+5z2)+(5y+7x-9z2)
(4k2+3k)-(8k2-4k+8)
(7a2+8a+6b)-(7a2-5a+b)
8x2+(4x2+5x+6)-(3x+6)
3y2-(5x2-y)-(5x2+6y2)