Pic Title: Abacus multiplication "998" formulas Related Phrase: 算盘: 乘法「九九」口诀 Related pictures: Abacus multiplication "998" formulas Source: http://img9.3lian.com/ Pic Description: 　　Multiplication tables _ Jiujiuchengfa formulas songs _ triple multiplication tables _ Jiujiuchengfa formulas songs _ triple Translated by Google No. / 2 Picture

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