Odpowiedzi

2009-11-12T17:51:09+01:00
6 km² = 6 (1000m)² = 6 000 000 m
300 cm² = 300 (1/100)²= 300 (1/10000) =0,03 m²
30 dm² = 30(1/10)² =30(1/100) = 0.3 m²

163 cm² = 163 *10² =16300 mm²
0,25m² = 0,25* (10 000)² = 25 000 000 mm²
80cm² = 80 *10² = 8000 mm²
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2009-11-12T17:54:19+01:00
6 km kw =6000000
300cm = 0.3
30dm= 0.3
163=1630000
0.25=250000
80=800000
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