The prop department always uses a 1-555 number on screen whenever a character needs to make a phone call.

My sister is in grade 1 and loves reading picture books.

At dawn, the 1/Sgts. inspected the equipment and relayed orders to their squads.

I accidentally called a 1-976 line and ended up with an unexpected charge on my phone bill.

The rural municipality installed a new 2+1 road to improve traffic flow and reduce accidents.

In rural regions, 2+1 roads have reduced head-on collisions by giving drivers periodic overtaking lanes.

The coach decided to switch to a 4-5-1 to strengthen the midfield in the second half.

The museum's new exhibit explores the causes and consequences of World War 1 through personal letters and photographs.

Many nationalists use the slogan 26+6=1 to express the belief that the 26 counties of the Republic of Ireland and the 6 counties of Northern Ireland together make a single United Ireland.

During the study, the team validated the 1-D RCM against satellite observations to assess its accuracy.