Odpowiedzi

2010-04-06T16:30:58+02:00
2010-04-06T16:38:02+02:00
1 cm = 10 mm
1/2 cm = 5 mm
7 2 7
2010-04-06T16:41:48+02:00
1 cm = 10 mm
10mm : 2 = 5mm
4 3 4