打
舉例來說,「1打原子筆」就是指「12支原子筆」,「2打原子筆」等於「24支原子筆」,將打置換為12後再做乘法運算即可得知正確的數量。以此類推,12打(122=144)則可稱為1簍,144打(123=1728)則稱為大簍。
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