2 sentences

1. 从总数中减掉十个。

   cóng zǒng​shù zhōng jiǎn​diào shí gè.

   Subtract ten from the total.

   Source: Dong Chinese Dictionary

2. 我希望能在这个月减掉三公斤。

   wǒ xī​wàng néng zài zhè gè yuè jiǎn​diào sān gōng​jīn.

   I hope to lose three kilograms this month.

   Source: Dong Chinese Dictionary