What does a kindergartner write on this sheet?

Just a letter. Each item shows two labeled bars and asks which is longer or shorter, and your child writes A or B on the line.

Why bars instead of pictures of real objects?

Bars keep the comparison honest: nothing curls, tilts, or hides its ends. Once longer and shorter are solid here, spotting them on pencils and shoes around the house comes easily.

Kindergarten comparing & ordering length

Kindergarten comparing & ordering length worksheets

Kindergarten comparing length worksheets show two labeled bars, A and B, and ask which one is longer or shorter. No numbers or rulers yet, just two lengths side by side. Answers are a single letter, easy for early writers.

Free printable PDF worksheet, aligned to Common Core K.MD.A.2.

Each print is a different sheet with its own answer key. You don't need to sign up.

The kind of problems you'll get

Compare the bars in each problem. Write the letter or letters.

A ribbon is longer than a crayon. Which is shorter?
Answer: The crayon is shorter.

Most problems on this sheet sit beside a picture, model or diagram, so this is the worked example the sheet itself prints. The answer key on page two prints the answer under every problem.

Every print pulls a fresh set of problems at this level, so a make-up test or a second sibling never gets the same sheet.

What's on a kindergarten sheet

Comparing and ordering length. Compare the bars in each problem. Write the letter or letters. 8 problems per page.

Every version prints on US Letter or A4, with its answer key after the problems.

How to teach this

Trace each bar with a finger from its left end to its right end before answering. That motion is the whole lesson. Say longer and shorter out loud rather than bigger and smaller, since a bar can be short and thick. If two bars look close, hold a scrap of paper against one, mark its length, and check the mark against the other.

Watch for: Kids judge by where a bar ends, even when it starts farther right. Length runs from start to end, so a bar can finish ahead and still be shorter. Kids count the lines between the cubes instead of the cubes themselves. Six cubes have only five lines inside, so count the boxes, not the marks.

Common questions about kindergarten comparing & ordering length

What does a kindergartner write on this sheet?: Just a letter. Each item shows two labeled bars and asks which is longer or shorter, and your child writes A or B on the line.
Why bars instead of pictures of real objects?: Bars keep the comparison honest: nothing curls, tilts, or hides its ends. Once longer and shorter are solid here, spotting them on pencils and shoes around the house comes easily.

Related worksheets

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Aligned to Common Core K.MD.A.2. Reviewed by the One more sheet team. Content version 241, updated September 2026.

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