Номер 1127

Знайдіть суму:

1) –44 + (–6) = –50;
2) –207 + (–97) = –304;
3) –12 + (–11) = –33;
4) –78 +(–13) = –91;
5) –5 + (–8,15) = –13,15;
6) –6,89 + (–68,9) = –75,79;
7) –0,02 + (–0,2) = –0,22;
8) –7,7 +(–8,7) = –16,4;
9) –0,89 + (–0,01) = –0,9.