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Calculati: 1,8dm+380mm-27cm=

Răspuns :

1.8dm=18cm
380mm=38cm
27cm=27cm
18cm+38cm-27cm=56cm=27cm=29cm
=2.9cm
=290mm
1,8dm + 3,8dm - 270dm = 5,6 - 270 = -264,6 dm