Solving verbal arithmetic problems is difficult.

He is good at elementary arithmetic, and can solve calculation problems quickly.

He decided to start afresh, scrapping everything he had.

He decided to make a fresh start and begin a new life.

It's difficult to solve this formula.

He solved complex mathematical problems using his new calculator.

His calculating nature sometimes causes problems.

I am working using a spreadsheet software.

Please check the statement of account.

The government declared a state of emergency to prevent the spread of the new coronavirus.