Răspuns :
5+10+15+20+25+....+625
=[(5+625)* (625:5)]:2
= (630*125):2
= 78.750 : 2
= 39.375
Baftă!
Răspuns:
- 5+10+15+20+25+....+625
- =[(5+625)* (625:5)]:2
- = (630*125):2
- = 78.750 : 2
- = 39.375
5+10+15+20+25+....+625
=[(5+625)* (625:5)]:2
= (630*125):2
= 78.750 : 2
= 39.375
Baftă!
Răspuns: