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Calculeaza:a) 3t+21 kg+500dg+20q= b) 31.000 cm +21m + 57hm= c) 240 min +2h +1zi=

Răspuns :

a) 3t+21kg+500dg+20g=3000000g+21000g+50g+2000000g=5021050g b) 31000cm+21m+57hm=310m+21m+5700m=6031m c) 240min+2h+1zi=4h+2h+24h=30h