4 sentences

1. ‎二加二等于几？

   ‎ èr jiā èr děng​yú jǐ?

   How much is two plus two?

   Source: OpenSubtitles

2. 一加二等于三。

   yī jiā èr děng​yú sān.

   One plus two is equal to three.

   Source: Tatoeba

3. 五乘二等于十。

   wǔ chéng èr děng​yú shí.

   Five times two equals ten.

   Source: Tatoeba

4. 他在这次数学竞赛中获得了二等奖。

   tā zài zhè cì shù​xué jìng​sài zhōng huò​dé le èr děng jiǎng.

   He won second prize in this math competition.

   Source: Dong Chinese Dictionary