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Which Is Longer? is a free printable Kindergarten maths worksheet on direct comparison of two lengths, aligned to Common Core standard K.MD.A.2. It prints 12 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two pupils in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 1 of 25 · the same problems every time you open this link.

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One paper per pupil

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All 25 sets ask different questions.

Which Is Longer?

K.MD.A.2

NameDate

Write < , > or = between the lengths.

1.8 cubes long17 cubes long
2.12 cubes long15 cubes long
3.11 cubes long10 cubes long
4.10 cubes long18 cubes long
5.12 cubes long6 cubes long
6.14 cubes long20 cubes long
7.3 cubes long5 cubes long
8.13 cubes long16 cubes long
9.20 cubes long11 cubes long
10.17 cubes long3 cubes long
11.24 cubes long19 cubes long
12.15 cubes long12 cubes long

LessonPrint · K.MD.A.2 · Set 1 · free to copy for classroom use

Answer key — Which Is Longer?

Set 1. Prints on its own sheet.

  1. 1.<
  2. 2.<
  3. 3.>
  4. 4.<
  5. 5.>
  6. 6.<
  7. 7.<
  8. 8.<
  9. 9.>
  10. 10.>
  11. 11.>
  12. 12.>

Questions about Which Is Longer?

What does the Which Is Longer? worksheet cover?

It practises direct comparison of two lengths — 12 questions for Kindergarten, all on Common Core K.MD.A.2: Put two objects side by side and say which is longer or heavier. The instruction to pupils is “Write < , > or = between the lengths”, and the answer key follows on the next sheet.

Which Common Core standard does Which Is Longer? practise?

CCSS.MATH.CONTENT.K.MD.A.2 — K.MD.A.2, in the Measurement & Data domain for Kindergarten. The published standard reads: “Directly compare two objects with a measurable attribute in common, to see which object has "more of"/"less of" the attribute, and describe the difference.” The worksheet assesses that standard rather than a paraphrase of it.

What age or grade is this worksheet for?

Which Is Longer? is written for Kindergarten, typically ages 5-6. It is one of the sheets on K.MD.A.2, so it suits any pupil working at that standard — including older pupils revisiting it and younger ones working ahead.

Does Which Is Longer? come with an answer key?

Yes. All 12 answers are generated from the same problems as the questions, so the key cannot drift out of step with the sheet. It starts on a fresh sheet of paper, after the questions, so it is not handed out with the class by accident.

How many different versions of Which Is Longer? can I print?

25 — one per pupil, and all 25 ask different questions. Set 1 downloads the whole class as a single PDF. Every version is fixed to its own address, so a sheet printed today holds the same problems when you reopen it next week.

Is Which Is Longer? free to print and photocopy?

Yes. Which Is Longer?, its answer key and its 25 versions are free to print and photocopy for your own class, with no account, no email capture and no subscription at the download step. Please do not resell them or republish them as your own.

Is there a lesson plan to teach K.MD.A.2?

Yes — “Comparing Two Objects Directly” is a 30-minute Kindergarten plan for K.MD.A.2, timed section by section, with the misconceptions to expect and an exit ticket. Which Is Longer? is the practice that follows it.

More practice for K.MD.A.2

Put two objects side by side and say which is longer or heavier.

Teaching this next? Comparing Two Objects Directly is the 30-minute plan for it, with the misconceptions to expect.

All Kindergarten worksheets

Last reviewed 2026-09-05. Aligned to K.MD.A.2 of the Common Core State Standards for mathematics.