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a fost răspuns

4.Află numerele necunoscute:

a) 6 dm+ ?dm =1m
500mm+? mm = 1 m
b) 8cm+? dm = 1 m
60cm + ? dm = 1m
c)20 dam+? hm = 1km
100cm+ 7 dm +300mm+ 2dam + ?dm= 30m
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Răspuns :

Costeanion

a) 6 dm + 4 dm = 1 m

500 mm + 500 mm = 1 m

b) 8 cm + 9,2 dm = 1 m

60 cm + 4 dm = 1 m

c) 20 dam + 8 hm = 1 km

100 cm + 7 dm + 300 mm + 2 dam + 1 dm = 30 m

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