Start learning →

Which of these is NOT a standard subtractive Roman pair?

AXL
BIL
CCM
DCD
Answer & Solution
Correct answer: B. IL
Only IV, IX, XL, XC, CD and CM are standard, and IL (49) is not among them.
Practise this question with Quill — Olympiad (Class 5) →

Keep practising Knowing Our Numbers

Browse all Knowing Our Numbers questions for Olympiad (Class 5), or explore more Mathematics topics.

Start a Knowing Our Numbers lesson →
Related questions