Răspuns:
4. 4 ,9,12,33,40 ,72,90,465,1200,1960, 454,309,56,129,845
5. MDXLII =1542
- MMDXXII=2522. Ordinea este :
- MCMLXXXIX = 1989
- MDCXLVII=1647. 95, 400,629,760,1647,1989
- CD=400. ,2522
- DCXXIX=629.
- DCCLX=760. Le pui tu in ordine dupa
- XCV=95. cifrele romane
- 6
- a)XXV,XXX,XXXV,XL
- b)III,VI,IX,XII
- c)XX,XL,LX ,LXXX