(-0.5)-9/2-(-19/2)+9.75
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(-0.5)-9/2-(-19/2)+9.75
(-0.5)-9/2-(-19/2)+9.75
(-0.5)-9/2-(-19/2)+9.75
(-0.5)-9/2-(-19/2)+9.75
=-0.5+9.75-9/2+19/2
=9.25+(19/2-9/2)
=9.25+5
=14.25
(-0.5)-9/2-(-19/2)+9.75
(-0.5)+9/2+(-19/2)+9.75
(-0.5)+2分之9+(-2分之19)+9.75
(-0.5)+(9/4)+(-19/2)+(9.75) 怎么算
(-0.5)+(9/2)+(-19/2)+9.75=?求求各位大侠了,我是新人啊
8/19-(8/19-2/9)
1( )9( )9( )2乘1( )9( )9( )2乘19( )9( )2等于1992 ( )应填几
[1()9()9()2]×[1()9()9()2]×[19()9()2]=1992
(19 4/9+9 4/19)÷(2 7/9+1 6/19)
数列题 0.5,2,9/2,8,
2/3 4/3 19/9 3 ( )
30x+19=2x-9
9/2减19/1=多少?
X-0.5X-2=9 方程
-0.5x+9=3x+2
9t+0.5t^2=380
17/19[(4/9+1/2)*9/17]简算
6.3×1/2÷(1.8+2.7×1/2) 0.56×(5/12-19/60+2.375)÷0.5(4/9×2.4+1.6×4/19)×4/5