The A-1s were placed on the top shelf to avoid damage.

We need to know how many +1s you're bringing to the wedding so we can finalize the seating chart.

Please separate the 1s from the tens when organizing the digits.

During the audit, I found three 1s in the spreadsheet.

The museum acquired five vintage M-1s for the military exhibit.

Our manager scheduled weekly 1-on-1s to discuss career development and feedback.

Many students prefer 2-in-1s because they combine portability with a full keyboard.

Researchers collected samples from patients to sequence the HSV-1s and compare their genomes.

The museum displayed several restored V-1s from the wartime collection.

Dispatchers handled dozens of 9-1-1s during the blizzard.