Answer :
Simple...
you have -4.16-(-2.3)
but remember there's a negative in front of the (-2.3) so that gets switched into +2.3....
so now you'd have...
-4.16+2.3
=-1.86
Thus, your answer, B.
you have -4.16-(-2.3)
but remember there's a negative in front of the (-2.3) so that gets switched into +2.3....
so now you'd have...
-4.16+2.3
=-1.86
Thus, your answer, B.