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One divided by six: add four below original: 六一下加四. This is an abacus mnemonic describing how to handle remainders or bead movements when dividing by six.
When reaching six, advance one to the tens place
Two divided by six: thirty-two
Three divided by six: add to make five original: 六三添作五. A rhyme for 3/6 = 0.5.
Four divided by six: sixty-four
Five divided by six: eighty-two
When reaching six, advance one to the tens place
Suppose the Autumn Grain Tax grain collected in the autumn, a primary source of government revenue in imperial China. rice is 23,457 shi (dàn) A unit of volume, often called a "stone," equivalent to about 100 liters. and 9 dou One-tenth of a shi.. Every shi is taxed at 7 mace (qián) A unit of currency weight; 10 mace equal 1 tael (liang). of silver.
The Question asks: What is the total silver owed?
The Answer is: 16,420 taels (liǎng), 5 mace, and 3 candareens (fēn).
The Method states: Set the quantity of grain rice as the Multiplicand (Shi 實). Use the tax rate of 7 mace per shi as the Multiplier (Fa 法). Multiply them together to solve the problem.
The Multiplier is 7 mace; multiply by it.
Determining the Place Value