I am written with two characters as a Roman numeral. If you take away my first symbol, my numeric value increases. What numeral am I?
IV
IV represents the number 4. If you remove the 'I', you are left with 'V', which equals 5. (IX also satisfies this logic).
About this riddle
Math riddles hide a calculation inside a short story. Pull out the numbers, work out what is being asked, and watch for a trick such as a unit change.
Difficulty: Medium. More like this: Math riddles with answers or try Target 24 for a different kind of puzzle.
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