Выполнить сложение отрицательных чисел (с полным пояснением) 1. – 275 + (–362 ) =
2. –171+(–73 ) =
3. –367 + (–452) =
4. –254 + (–31 ) =
5. –445 + (–544) =
6. –227+(–91) =
7. –124 + (–32 ) =
8. –158 + (–12 ) =
9. –345 + (–42 )=
10. –543 +(–635 ) =
11. –225 + (–53 ) =
12. –435 + (–583 ) =
13. –131 + (–74 ) =
14. –154 + (–35 ) =
15. –234 + (–23 ) =