Pronunciation

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Singular
subtraction

Plural
subtractions

  1. Subtraction is the act or operation when you subtract something.
    My son is learning subtraction in grade 1 math class.
    e.g., 27 – 14 = 13
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Basic math (edit)

arithmetic - algebra

addition - subtraction - multiplication - division

exponent - square root - fraction

least common multiple - greatest common factor