Look at the rule. There are many little lines on the ruler. But only 12 of these lines are numbered. The numbered lines are the inch lines. It is one inch from the end of the ruler to the first numbered line. It is one inch from one numbered line to another numbered line. Measure these lines: Answer 1 3 5 Look at the ruler. ½ ½ 1 From the left end of the ruler to 1 is one inch. This inch is divided into two equal parts by a line.