ответ:-82,71
-15,54-(-34,23)-24,12-(-4,5)+(-81,78)=
=-15,54+34,23-24,12+4,5-81,78=-82,71
(−15,54−(−34,23)−24,12−(−4,5)+(−81,78)=-15,54+34,23-24,12+4,5-81,78= 82,71
ответ:-82,71
-15,54-(-34,23)-24,12-(-4,5)+(-81,78)=
=-15,54+34,23-24,12+4,5-81,78=-82,71
(−15,54−(−34,23)−24,12−(−4,5)+(−81,78)=-15,54+34,23-24,12+4,5-81,78= 82,71