zamień jednostki . ! :* 6,8 dm = cm 500kg= t 1,4h= s 800N= kN 6,8dm= m 0,35kg= g 1200 N = kN 15min= h 120m= km 250 dag= kg 30s= min 3 m2= cm2 Pomocy ! :D
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6,8 dm = 68cm bo 1dm = 10cm
500kg = 0,5 t bo 1t = 1000kg
1,4h = 5040 s bo 1h = 3600s , a 0,4h = 24min
800N = 0,8 kN bo 1kN = 1000N
6,8dm = 0,68m bo 1m = 10dm , a 1dm = 0,1dm
0,35kg = 350g bo 1kg = 1000g , można skojarzyć ze szklanką 250g, 4 szkl. to 1kg
1200N = 1,2 kN bo 1kN = 1000N , a 1N = o,oo1kN
15min = 0,25h bo 15min = ¼ h
120m = 0,12km bo 1km = 1000m , a 1m = 0,001km
250dag = 2,5kg bo 1kg = 100g
30s = 0,5min bo 1min = 60s
3m² = 30000cm² bo 1m² = 10000cm²