Răspuns :
20:2=10 gramezi ( a cate 2 nuci in gramada )
20:3=6 rest 2( a cate 6 nuci in gramada si 2 nuci raman pe dinafara )
20:5=4 gramezi (a cate 5 nuci in gramada )
20:3=6 rest 2( a cate 6 nuci in gramada si 2 nuci raman pe dinafara )
20:5=4 gramezi (a cate 5 nuci in gramada )