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How Much Longer? is a free printable Grade 1 math worksheet on finding a difference in length, aligned to Common Core standard 1.MD.A.1. 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 students 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 student

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All 25 sets ask different questions.

How Much Longer?

1.MD.A.1

NameDate

Work out each answer.

1.How much longer is 6 cubes than 5 cubes?
2.How much longer is 24 cubes than 15 cubes?
3.How much longer is 27 cubes than 21 cubes?
4.How much longer is 18 cubes than 3 cubes?
5.How much longer is 17 cubes than 7 cubes?
6.How much longer is 27 cubes than 24 cubes?
7.How much longer is 26 cubes than 17 cubes?
8.How much longer is 28 cubes than 18 cubes?
9.How much longer is 17 cubes than 8 cubes?
10.How much longer is 8 cubes than 5 cubes?
11.How much longer is 16 cubes than 5 cubes?
12.How much longer is 14 cubes than 7 cubes?

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

Answer key — How Much Longer?

Set 1. Prints on its own sheet.

  1. 1.1 cube
  2. 2.9 cubes
  3. 3.6 cubes
  4. 4.15 cubes
  5. 5.10 cubes
  6. 6.3 cubes
  7. 7.9 cubes
  8. 8.10 cubes
  9. 9.9 cubes
  10. 10.3 cubes
  11. 11.11 cubes
  12. 12.7 cubes

Questions about How Much Longer?

What does the How Much Longer? worksheet cover?

It practices finding a difference in length — 12 questions for Grade 1, all on Common Core 1.MD.A.1: Put objects in order from shortest to longest. The instruction to students is “Work out each answer”, and the answer key follows on the next sheet.

Which Common Core standard does How Much Longer? practice?

CCSS.MATH.CONTENT.1.MD.A.1 — 1.MD.A.1, under Measurement & Data for Grade 1. The published standard reads: “Order three objects by length; compare the lengths of two objects indirectly by using a third object.” The worksheet assesses that standard rather than a paraphrase of it.

What age or grade is this worksheet for?

How Much Longer? is written for Grade 1, typically ages 6-7. It is one of the sheets on 1.MD.A.1, so it suits any student working at that standard — including older students revisiting it and younger ones working ahead.

Does How Much 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 How Much Longer? can I print?

25 — one per student, 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 How Much Longer? free to print and photocopy?

Yes. How Much 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.

More practice for 1.MD.A.1

Put objects in order from shortest to longest.

All Grade 1 worksheets

Last reviewed 2026-09-05. Aligned to 1.MD.A.1 of the Common Core State Standards for Mathematics.