The crossword solution for the term RESULT OF ADDING ON is SUM, which is an abbreviation of the word 'SUMMARIZE'. Summarizing is the process of condensing a large amount of information into a shorter, more concise form. It involves taking the main points from a text or other source and expressing them in a briefer form. Summarizing is a useful skill for students to have, as it allows them to quickly identify the main ideas in a text and make connections between them.