Question

14hm+6dam-60dam=?m;15000mm-500cm+60dm=?m;14700m-1300dam+750hm=?km

Answer 1

1 ) 14 hm + 6 dam - 60 dam = ? m

14 hm = 1400 m
6 dam = 60 m
60 dam = 600 m

1400 m + 60 m - 600 m = 
= 1460 m - 600 m 
= 860 m 

2 ) 15000 mm - 500 cm + 60 dm = ? m 

15000 mm = 15 m 
500 cm = 5 m 
60 dm = 6 m 

15 m - 5 m + 6 m =
= 10 m + 6 m
= 16 m 

3 ) 14700 m - 1300 dam  + 750 hm = ? km 

14700 m = 14,7 km
1300 dam = 13 km
750 hm = 75 km 

14,7 km  - 13 km + 75 km = 
= 1,7 km + 75 km 
= 76,7 km