Răspuns :
1. 3 dam = 30 m
12 km = 12000 m
9 dam = 90 m
2. 5 - 2 + 7 = 3 + 7 = 10 lei
12 km = 12000 m
9 dam = 90 m
2. 5 - 2 + 7 = 3 + 7 = 10 lei
3 dam = 30 m
12 km = 12000 m
9 dam = 90 m
( 5 - 2 ) + 7 =3 + 7 = 10 lei
12 km = 12000 m
9 dam = 90 m
( 5 - 2 ) + 7 =3 + 7 = 10 lei