Pic Title: Abacus multiplication "998" formulas Related Phrase: 算盘: 乘法「九九」口诀 Related pictures: Abacus multiplication "998" formulas Source: http://www.dongwest.net/ Pic Description: 　　From language to see Eastern and Western Thinking - again from "big thinking" to "grand strategy" from the language to see Eastern and Western Thinking - again from "big thinking" to "grand strategy." Translated by Google No. / 2 Picture

Comments (0)