2 sentences for 乘 (chéng — to multiply)

1. 这个表达式中，我们不需要乘号或括号。

   zhè​ge biǎo​dá​shì zhōng, wǒ​men bù​xū​yào chéng​hào huò kuò​hào.

   In this expression, we do not need a multiplication sign or parenthesis.

   Source: UM-Corpus: Education

2. 如果你必须加倍配方，你只需将所有东西乘以2。

   rú​guǒ nǐ bì​xū jiā​bèi pèi​fāng, nǐ zhǐ​xū jiāng suǒ​yǒu dōng​xi chéng​yǐ2.

   If you have to double the recipe you just multiply everything by two.

   Source: CCMatrix