Question

Calculează.
3 m + 20 cm =
cm 70 km - 45 000 m =
7 m + 400 cm =
500 cm-2 m =
3 m + 2 000 mm =
cm mm 5 000 m + 7 km =
8 m - 155 cm =
900 cm - 370 mm =
cm km 980 hm + 78 000 m =
mm 8 x 35 hm=
km km 8 m - 2450 mm =
900 mm:5= cm cm​

Answer 1

Răspuns:

3 m + 20 cm = 300cm+20cm=320cm

70 km - 45 000 m = 70000m-45000=25 000 m

7 m + 400 cm = 700cm+400cm=1100m

500 cm-2 m = 500cm-200cm=300cm

3 m + 2 000 mm=3m+2m=5m

5 000 m + 7 km = 5km+7km=12km

8 m - 155 cm = 800cm-155 cm=645cm

900 cm - 370 mm = 900cm-37cm=863cm

980 hm + 78 000 m = 980hm+780hm=1760hm

8 x 35 hm= 280hm

8 m - 2450 mm = 8000mm-2450mm=5550mm

900 mm:5= 180mm