Question

вычислите:
-18-(-25-31);
25,4-(3,6-15,92) 

Answer 1

1) -18-(-25-31)= -18+25+31=38.
2) 25,4-(3,6-15,92)= 15,4-3,6+15,91= 27,71

Answer 2

-18-(-25-31)=-18+25+31=-18+56=38

второе лень)