Номер 1125

1) 7 – 8 = 7 + (–8) = –1;

2) –2 – 3 =–2 + (–3) = –5;

3) 17 – (–1) = 17 + 1 = 18;

4) –12 – (–13) = –12 + 13 = 1;

5) 0 – (–12) = 0 + 12 = 12;

6) –3 – (–1) = –3 + 1 = –2;

7) 0 – 17 = 0 + (–17) = –17;

8) –2 – (–2) = –2 + 2 = 0.