Saved Bookmarks
| 1. |
2+3++4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25+26+27+28+29+30=? |
|
Answer» Step-by-step explanation: 2+3+4+5+6+7+8+9+10=54 11+12+13+14+15+16+17+18+19+20=155 21+22+23+24+25+26+27+28+29+30=225 54+155+255=434 |
|