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Micuzà1
a fost răspuns

calculati: 0,1km+2hm-7,5 dam=...m;0,5h-15min+100s=...s;1000g+2000dg+30000cg-400000mg=...kg.urgent imi trebuie raspunsurile.

Răspuns :

Tina123456543
0,1km=100m 2hm=200m 7,5dam=75m 100m+200m-75m=225m 0,5h=1800s 15min=900s 1800s-900s+100s=1000s 1000g=1kg 2000dg=0,2kg 30000cg=0,3kg 400000mg=0,4kg 1kg+0,2kg+0,3kg-0,4kg=1,1kg