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U+00B1 PLUS-MINUS SIGN: ± – Unicode – Codepoints
Reve, jeux, spanish Wikipedia, plus And Minus Signs, subtraction, libre, Minus, Addition, wikiwand, wikimedia Foundation
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File:Plus-,minus-,and equality-sign.svg - Wikipedia
Neutron - Wikipedia
upload.wikimedia.org/wikipedia/commons/thumb/e/e8/
Where did the plus sign (+) come from? Where did the equals sign (=) come from? What were other mathematical signs before that time? - Quora
Creative Technique, PDF, William Blake
Full Potential Learning Academy - In many Israeli schools, algebra is taught without the use of the symbol + as it looks like a Christian cross. They use an inverted T instead. #
Negative number - Wikipedia
I recently saw someone used a symbol for the word 'and' that looks like a upside down number '4'. Is that a legit symbol for 'and' and if so then what's it
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