Four positions of a cube are shown below. Which symbol is opposite the having '+'?

On the basis of following pattern in given dices , we can say that
The symbols ÷, D and O lie on the adjacent faces of the symbol + and hence these cannot be on the opposite face of +.
Considering all the four views of dice, it is clear that
Δ lies opposite O.
+ lies opposite ×.
÷ lies opposite –.