Why we use "+" & "-" for Addition and Subtraction?

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Why we use "+" & "-" for Addition and Subtraction?

2007-01-23 23:47:59 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

2 answers

The answers lie here

2007-01-23 23:53:02 · answer #1 · answered by Rocklyn80 5 · 2⤊ 0⤋

The "+" sign used to mean "and" (like the & sign) in Latin, so 2+2=4 would be "2 and 2 = 4". The origin of the minus sign is not as clear. Probably just a case of they need something besides "+" and "-" was the choice.

2007-01-24 07:57:39 · answer #2 · answered by dewcoons 7 · 1⤊ 0⤋