Question

va roggggggggggggggg

Answer 1

1. XXV, XXX, XXXV. L, LX, LXX.

2. 93-XCIII 206-CCVI 629-DCXXIX

3. 708=DCCVIII 1742= MDCCXLII 329=CCCXXIX 2571=MMDLXXI

4 a) D=500 M=1000 L=50 C=100 MD=1500 MX=1010

b) CC=200 CX=110 XC=90 CXC=190 CXX=120 CCC=300

Answer 2

1) V , X, XV, XX, XXV, XXX, XXXV, XL → sir crescator din 5 in 5

X, XX, XXX, XL, L, LX, LXX, LXXX, XC → sir crescator din 10 in 10

2)

93 → XCIII

206 → CCVI

629 → DCXXIX

3)

a) 708 → DCCVIII; 329 → CCCXXIX; 1 742 → MDCCXLII; 2 571 → MMDLXXI

b) CLXXIII → 173; DCXXIX → 629; CCXLVI → 246; MCMXXXII → 1 932

4)

a) D ( 500); M ( 1 000 ); L ( 50 ); C ( 100); MD ( 1 500 ; MX ( 1 010 )

crescator: L < C < D < M < MX < MD

b) CC ( 200 ); XC ( 90 ); CX ( 110 ); CXC ( 190 ); CXX ( 120 ); CCC ( 300 )

descrescator: CCC > CC > CXC > CXX > CX > XC

5)

CCLXXXIX + LXXX + DVI + CCII = MLXXVII

= 289 + 80 + 506 + 202 =

= 1 077

_______________

DCCCXV - CCCLXXII - LIX = CCCLXXXIV

= 815 - 372 - 59 =

= 443 - 59 =

= 384

6)

III - I = II

V + V = X → (am luat un betisor de la rezultat XI si l-am pus la semn ,,plus")

III - I = III - I

7)

secolul al XVII -lea ; 1 688 → MDCLXXXVIII; secolul al XVIII -lea;

1 714 → MDCCXIV; 26 ani - XXVI