Question

3. Есептеңіз: 1) 78,9+(-28,9)= 3) 27,2+ -13,4|= 2) -3,45+(-15,55)=​

Answer 1

Ответ:

Пошаговое объяснение:

1) 78,9+(-28,9)=78.9 - 28.9 = 50;

2) -3,45+(-15,55)=​-(3.45+15.55)= -19;

3) 27,2+ (-13,4)= 27.2-13.4 = 13.8.

Answer 2

1. 78.9 + (-28.9) = 50
2. -3.45 + (-15.55) = -19
3. 27.2 + (-13.4) = 13.8