Subtraction is the math process of taking one number away from another to find the difference between them.
From Latin 'subtractio' meaning 'a drawing away', from 'subtrahere' (to draw from beneath), from 'sub' (from under) + 'trahere' (to pull). It described removing or pulling something away.
Subtraction is really about comparing: 'How much more does this have than that?' Every time you figure out how much money you have left after buying something, you’re doing real‑life subtraction.
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