Alexandramarcu9id
a fost răspuns

Calculeaza.
3 m + 20 cm =
7m + 400 cm =
3m + 2 000 mm =
70 km - 45 000 m =
m 500 cm - 2 m =
mm 8 m - 155 cm =
km 900 cm - 370 mm =
8 x 35 hm = cm
5000 m + 7 km =
mm
980 hm + 78 000 m =
km
km
8 m - 2 450 mm =
900 mm: 5=
cm
cm​

Răspuns :

Diana45637id
1)3m+20cm=3•100+20cm=320cm
2)7m+400cm=7•100+400cm=1100cm
3)70km-45000m=70km-45000:1000=70km-45km=35km
4)500cm-2m=500cm-2•100=300cm
5)8m-155cm=8•100-155cm=800cm-155cm=645cm

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