
1) Arabic characters 2) Man rules out 8 and 13 3) Mathematical figures 4) Numbers
Found on
https://www.crosswordclues.com/clue/numerals

1) Nines
Found on
https://www.crosswordclues.com/clue/numerals

The Romans used only 7 letters to represent all numbers where I = 1, V = 5, X = 10, L = 50, C = 100, D = 500 and M = 1000. Letters are placed before or after each other to lower or increase their value: IX = 9 or MXI = 1011 or MCMLXXXVIII = 1988 or IIMM = 1998.
Found on
http://www.encyclo.co.uk/visitor-contributions.php

numerals 1. A symbol or mark used to represent a number. 2. Numerals, the numbers, usually the last two digits, indicating by year a graduating class in a school or college. 3. Of, relating to, or representing numbers.
Found on
http://www.wordinfo.info/words/index/info/view_unit/1427/3
No exact match found.