What does XLV stand for in roman numerials?

Answer 1

45

X = 10

L = 50

V = 5

A smaller number (letter) in front of a larger one means less or negative. XL = ten less fifty, which is the same as 50-10=40.

Then the smaller numbers after a larger number are added. So plus five for the V.

Add them all up

(50-10)+(5)

Forty Five

You might remember seeing MCMXCVIII on things in 1998.

I = 1

V=5

X=10

C=100

M=1000

(1000)+(1000-100)+(100-10)+5+1+1+1=1998