Protons hold a positive sign, which is represented by the plus sign. Similarly, electrons hold a negative charge, which is represented by a negative sign.
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plus sign (+), minus (-), number (#), decimal point for decimals and money, percent (%), dollar sign ($), equal (=)
The plus sign is used to indicate a pharmacy.And the aid sign
The person who invented the plus sign is the same as the minus
When you see this sign: + plus add plus add ++++++++ , but not when you see : A+, B+, C+, D+. That is your grade. By: super answerer
To find the additive inverse of any number, just change the plus sign (or no sign) to a minus sign, or (as in this case), if there already is a minus sign, change it to a plus sign (or no sign).