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Elenaelly
a fost răspuns

a.
10cm+.......=1m
3dm+........dm=1m
999mm+.......mm=1m
80m+.........m=1hm

b.
1g+........g=1kg
6dg+.........dg=1kg
70cg+.....cg=1kg
100g+.....g=2hg
Urgentt.......!!!!!!