reckon something ↔ up phrasal verb British English old-fashioned ( see also ↑ reckon )
to add up amounts, costs etc in order to get a total SYN calculate :
Pat was reckoning up the cost of everything in her mind.
reckon something ↔ up phrasal verb British English old-fashioned ( see also ↑ reckon )
to add up amounts, costs etc in order to get a total SYN calculate :
Pat was reckoning up the cost of everything in her mind.
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012