Tag Archives: meaning of subtraction

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 »

How should students understand the subtraction operation?

Studies show that students whose understanding of subtraction is only to take away will have difficulty learning other mathematical concepts. There are three ways by which subtraction can be understood: (1) Taking Away, (2) Difference, and (3) Inverse relation to addition operation. Pupils’ first experience with subtraction involves taking away. The dash sign means minus… Read More »

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