He was calculating in his head.

These experimental results support our hypothesis.

He was able to overcome difficulties and be successful in life.

I work in transcribing from audio to text.

He solved complex mathematical problems using his new calculator.

I am working using a spreadsheet software.

His calculating nature sometimes causes problems.

Please check the statement of account.

It's difficult to solve this formula.

He is studying late into the night to learn a new computer language.