Номер 1022

Знайди значення суми:

1) –35 + (–5) = –40;

2) –3,4 + (–1) = –4,4;

3) –0,3 + (–0,2) = –0,5;

4) –1,9 + (–3) = –4,9;

5) –1,8 + (–3,2) = –4;

6) –13,9 + (–55,5) = –69,4;

7) –5011 + (–2191) = –7202;

8) –5,19 + (–3,9) = –9,09.