oblicz:
50cm=.1/2....m=.....m
1/4m=....cm
75cm=......m
1/2m+1/4m=.....m=....m
25cm+2/4m=....m=....cm
2/4m-50cm=.....m=.....cm
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50cm=1/2m=0,5m
1/4m=25cm
75cm=3/4m
1/2m+1/4m=3/4m=75cm
25cm+2/4m=3/4m=75cm
2/4m-50cm=1/2m-1/2m=0m=0cm