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+ is the symbol
The Roman numeral V represents the number 5.
+ 2 + 2 = 4 2 plus 2 equals 4
What mathematical symbol? Different symbols were invented in different times and places.
A numeral is a symbol or group of symbols that represents a specific number. It is a way of expressing quantities in a mathematical or numerical form. Numerals can be written using different systems, such as Arabic numerals (0, 1, 2, 3, etc.) or Roman numerals (I, II, III, IV, etc.).