Tag Archives: meaning of minus sign

Are negative numbers less than zero?

I found this interesting article about negative numbers. It’s a quote from the paper  titled The extension of the natural number domain to the integers in the transition from arithmetic to algebra by Aurora Gallardo. The quote was transcribed from the article Negative by D’Alembert (1717-1738) for Diderot Encyclopedia. In order to be able to… Read More »

Who says subtracting integers is difficult?

Subtracting integers should not be difficult for most if they make sense to them. In first grade, pupils learn that 100 – 92 means take away 92 from 100. The minus sign (-) means take away or subtract. After two or three birthdays, pupils learn that 100 – 92 means the difference between 100 and… Read More »

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