Question

Calculeaza si completează: 8 m + ? m = 1 dam, 30 m + ? m = 1 hm ,700 m + ? = 1 km , 7 hm + 30 hm = ? m , 9 dam + 3 dam = ? m , 20 hm + 1 hm = ? m.

Answer 1

1. 1 dam= 10 m
     10m-8m=2m
2. 1 hm=100m
    100m-30m=70m
3.1 km=1000m
   1000-70=300m
4. 7hm+3hm=10hm
   10hm=100m
5. 9dam+3dam=12dam
    12dam=120m
6. 20hm+1hm=21hm
    21hm=210m