Răspunsuri

2014-10-12T20:26:30+03:00
Daca 17 nu sunt pere=> 30-17=13 pere
23 nu sunt mere=>30-23=7 mere
30-20=10. nuci.
2014-10-12T20:31:50+03:00
30 -17 = 13 pere 
30 -23=7 mere
30-13-7=10. nuci