Longest and Shortest
Circle the longest one. Put an X on the shortest one.
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This is sheet #14424601.
How to do it
- Look at the three things in a group.
- Circle the longest one.
- Put an X on the shortest one.
Teaching tip
The things all start at the same line, so kids only need to look at where they end. This sheet is aligned with Common Core 1.MD.A.2.

About this worksheet
Groups of three pictures to compare by length. Matches 1.MD.A.1.
What kids practice
In first grade, measuring means lining up copies of something small, like cubes or paper clips, along an object and counting them. Kids learn that the units have to touch with no gaps or overlaps, and they start at one end of the object. Rulers come later.
Watch for
- Starting in the middle of the object or leaving gaps between units.
- Saying just the number without the unit.
- Thinking a taller picture is longer even when it's measured the other way.
It's free to print, with an answer key. See the full measuring length guide for 1st grade.
More sheets in this set
- See it all
1. Measuring Length ChartHow to measure with no gaps or overlaps, why bigger units give a smaller number, and comparing lengths.
2. Measure with CubesPictures of everyday things with a row of cubes underneath to count.
3. Measure with Paper ClipsPictures measured with a row of paper clips. A bigger unit means a smaller number.