M /........./
D /........./......../2....
1 )Egalam segmentele....din suma lor de 56 scoatem 2 si obtinem 54
56-2=54 fac 3 segmente egale
2) Cat e 1 segment sau cate probleme a rezolvat M?
54:3=18 ..M
3)Cate probleme a rezolvat D?
18X2+2=36+2=38....D
Verificare: 18+38=56