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Calculeaza si completeaza:
7dm+?cm=1m
60cm+?dm=1m
40cm+?mm=1m
6dm+40cm=?dm
8mm+10dm=?mm


Răspuns :

Stef90
7dm+?cm=1m
70cm+x cm = 100 cm rezulta x=30
60cm+?dm=1m
6dm+ x dm = 10 dm rezulta x =4
40cm+?mm=1m
400mm + x mm =1000 mm rezulta x = 600
6dm+40cm=?dm
6dm+4dm= x dm rezulta x = 10
8mm+10dm=?mm
8mm + 1000mm = x mm rezulta x = 1008