2 sentences

1. 这些开支合计共五百元。

   zhè​xiē kāi​zhī hé​jì gòng wǔ​bǎi yuán.

   These expenses total five hundred yuan.

   Source: Dong Chinese Dictionary

2. 我合计了很久，还是觉得这件事不太妥当。

   wǒ hé​jì le hěn jiǔ, hái​shi jué​de zhè jiàn shì bù tài tuǒ​dang.

   I thought it over for a long time and still feel that this matter isn't quite right.

   Source: Dong Chinese Dictionary