Add:
3 kilometres + 3 hectometres + 3 decametres = ______.
convert 3 km and 3 hm to decametres
3 kilometers = 3 × 100
= 300 decametres
3 hectometres = 3 × 10
= 30 decametres
Now. 300 decametres + 30 decametres + 3 decametres
300+30+3_____33 decametres
Ans = 333 decametres