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意思解释：（Rules for doing division with a one digit divisor on the abacus）珠算中用一到九的九个“个位数”为除数的除法，如“逢六进一”，就是六除六商一；“六三添作五”，就是六除三十商五。
珠算中用一到九的九个个位数做除数的除法，如“二一添作五”。就是二除十商五。…
The division that makes divisor to nine each digit of 9 is used in reckoning by the abacus, be like 21 add 5 . Namely 2 divide 10 business 5. ...
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