2 sentences for 雙 (shuāng — even)

1. 二、四、六是双，一、三、五是单。

   èr, sì, liù shì shuāng, yī, sān, wǔ shì dān.

   Two, four, and six are even numbers; one, three, and five are odd numbers.

   Source: Dong Chinese Dictionary

2. 这个数字是单的，那个数字是双的。

   zhè​ge shù​zì shì dān de, nà​ge shù​zì shì shuāng de.

   This number is odd, and that one is even.

   Source: Dong Chinese Dictionary