What are the opposite words for counts one by one?

Antonyms for the phrase "counts one by one" could be counting collectively, counting altogether, or counting in batches. These antonyms suggest a quicker and more efficient method of counting, where individual items are not counted one at a time, but are instead grouped together for a faster process. Counting collectively implies the items are counted as a whole entity rather than individual pieces, while counting altogether implies a single count for all the items at once. Counting in batches suggests that items are grouped together and counted in groups, reducing the number of individual counts required. These antonyms allow for a more streamlined and expedited counting process.