Roman numerals

Q1: What are Roman numerals?

Numeric system developed in Romania
Numeric system originated in ancient Rome
Numeric system developed by Joseph Roman
Numbers written in Times new Roman fonts
Good answeres: 1

Q2: Roman numerals are represented by..

Hexadecimal numbers
Combinations of letters from the Latin alphabet.
Numbers from 0-9
Numbers 0-9 and letters A-F
Good answeres: 1

Q3: Select symbols used in Roman numerals:

A, B
C, D
E, F
G, H
L, M
N, O
P, T
V, X, I
Good answeres: 3

Q4: Select true statements:

each symbol has a fixed integer value
Value of symbol X may be 10, 100 or 1000 depend of the position (example: X, XV, XVI)
Good answeres: 1

Q5: Value of symbol D is:

10
50
100
500
1000
Good answeres: 1

Q6: Value of symbol L is:

10
50
100
500
1000
Good answeres: 1

Q7: Select true statements, usage of X as +10:

XX = 10 + 10 = 20
XXXX = 10+10+10+10 = 40
VX = 5+10 = 15
XV = 10 + 5 = 15
CX = 100 + 10 = 110
DX = 500+10 = 510
Good answeres: 4

Q8: Select true statements, usage of X as -10:

XL = 50-10 = 40
XC = 100-10 = 90
XD = 500-10=490
XM = 1000-10=990
Good answeres: 2

Q9: 40 =

XXXX
XXXVV
XL
XC
Good answeres: 1

Q10: 246 =

CCIVVI
CCLCVI
CCXLVI
Good answeres: 1

Q11: 155 =

CLV
CLVX
CVV
Good answeres: 1

Q12: 999 =

IM
IX IX IX
CMXCIX
CMIC
Good answeres: 1

Q13: Select existing Roman number:

MIC
MCI
CIM
CMI
Good answeres: 2

Q14: 101 =

CI
COI
IOI
LLI
LXXXXXI
Good answeres: 1

Q15: 99 =

IC
LXXXXVIIII
LXLIX
XCIX
Good answeres: 1

Q16: 207 =

II 0 VII
CCVII
CC0VII
CLLVII
Good answeres: 1

Q17: MDCLXVI =

1666
1561
1151
Good answeres: 1

Q18: MMXVIII =

1996
2018
2158
Good answeres: 1

Q19: Select true statements:

CD = DC
CD > DC
CD < DC
Good answeres: 1