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Jyutping bei6 gaam2 sou3
Pinyin bèi jiǎn shù

Definitions (Wiktionary)
  1. noun
    minuend (number from which another is subtracted)

被減數 [-减数]

Jyutping
Pinyin bèi jiǎn shù

Definitions (CC-CEDICT)
  1. (math.) minuend