1044:3=348 (suma a 4 numere consecutive pare)
Primul nr |~~~|
Al doilea |~~~|+2
Al treilea|~~~|+4
Al patrulea|~~~|+6
348-(2+4+6)=
348-12=336
336:4=84
Primul nr =84
Al doilea =84+2=86
Al treilea=84+4=88
Al patrulea=84+6=90
Verificare :
(84+86+88+90)•3=
348•3=1044
