中文数字一到十乘法。二乘以二等于多少?
Chinese Numerals 1 - 10. Multiplication.
二乘以二等于多少?
èr chéngyǐ èr děngyú duōshao
2 х 2 = ?
The Chinese Numerals for Businessmen by Polina Shinkina
http://www.lulu.com/content/e-book/the-chinese-numerals-for-businessmen/19124210http://www.lulu.com/spotlight/polina985