The number 66 in Roman numerals is ____.
LXVI
Step 1: Break 66 into place values.
We can write 66 as:
\(66 = 60 + 6\)
Step 2: Write 60 in Roman numerals.
We know the basic symbols:
So, \(60 = 50 + 10\), which is:
\(60 = L + X = LX\)
Step 3: Write 6 in Roman numerals.
So, \(6 = 5 + 1\), which is:
\(6 = V + I = VI\)
Step 4: Combine 60 and 6.
Put \(LX\) (for 60) and \(VI\) (for 6) together:
\(66 = LX + VI = LXVI\)
Note: The letters are in decreasing order (\(L\), then \(X\), then \(V\), then \(I\)), so we add their values.