2 min,10 min,20 min- ile to sekund?  5 dag,8,5 dag,7 kg,12,4 kg-ile to gramów? 47cm,2dm,7 km,80,5 km-ile to metrów? 4 godziny,2,5 godziny,20 godzin-ile to minut? 60 g,9g,9g,6,3 kg-ile to dekagramów?

2 min to 120s, 10min to 600s, 20min to 1200s 5dag to 50g, 8,5dag  to 85g, 7kg to 7000g, 12,4kg to 12400g 47cm to 0,47m, 2dm to 0,2m, 7km to 7000m, 80,5km to 80500m 4h to 240min, 2,5h to 150min, 20h to 1200min 60g to 6dag, 9g to 0,9dag, 9g to 0.9dag, 6,3kg to 630dag

2 min=120 sekund 10 min= 600 sekund 20 min= 1200 sekund 5 dag= 50g 8,5 dag= 85g 7kg=700dag=7000g 12,4kg= 12400dag=124000g 47cm= 0,47m 2dm=0,2m 7km= 7000m 80,5km=80500m 4h=240min 2,5h=150min 20h=1200min 60g= 6dag 9g=0,9dag 6,3kg=630dag licze na naj;*