Răspunsuri

Cel mai inteligent răspuns!
2014-10-19T18:10:25+03:00
-16+15=-1
-6+17=11
21+(-9)=12
-121+98=-23
137+(-112)=25
-291+290=-1
2014-10-19T18:13:37+03:00
- 16 + 15 = - 1
- 6 + 17 = 11
21 - 9 = 12
- 121 + 98 = - 23
137 - 112 = 25
- 291 + 290 = - 1
1 4 1