OK - so float(Score)%10 is the expression I need, but how do I complete the following:
System > float(Score)%10 -> If the result is a whole number then do A, else do B
Don't create a system expression... if you do this it will trigger every tick what means that it will test Score%10 every moment even without change the value of the score.
What I suggest..
In the same action that increment the Score value, create a sub event (That means that this sub event will only trigger when the Score changes)
So it will be like:
Trigger that increment Score
+ (Sub Event) If Score%10 = 0 -> ACTION
+ ELSE -> ANOTHER ACTION
You only need float() if you are working with a string like I was in my example.
If you are working with numbers, just do straight Score%10