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Calculeaza:
720dam +60dam=?m
200dam - 140=?dam
10×48m=?dam
430dam-360dam=?hm
840km+670hm=?km
1000m:10=?m?hm

Răspuns :

Renatemambouko
720dam +60dam=780 dam=7800m
200dam - 140 dam=340 dam
10×48m=480m=48 dam
430dam-360dam=70 dam=7hm
840km+670hm=840 km+67 km=907km
1000m:10m=100m=1hm