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Mark the Decimal is a free printable Grade 4 math worksheet on placing a decimal on a number line, aligned to Common Core standard 4.NF.C.6. It prints 6 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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All 25 sets ask different questions.

Mark the Decimal

4.NF.C.6

NameDate

Mark each decimal with an arrow.

1.Mark 0.74 on the line.
0.70.8
2.Mark 2.59 on the line.
2.52.6
3.Mark 1 on the line.
012
4.Mark 2.54 on the line.
2.52.6
5.Mark 0.6 on the line.
01
6.Mark 0.42 on the line.
0.40.5

LessonPrint · 4.NF.C.6 · Set 1 · free to copy for classroom use

Answer key — Mark the Decimal

Set 1. Prints on its own sheet.

  1. 1.0.74 — 4 ticks from 0.7
  2. 2.2.59 — 9 ticks from 2.5
  3. 3.1 — 10 ticks from 0
  4. 4.2.54 — 4 ticks from 2.5
  5. 5.0.6 — 6 ticks from 0
  6. 6.0.42 — 2 ticks from 0.4

Questions about Mark the Decimal

What does the Mark the Decimal worksheet cover?

It practices placing a decimal on a number line — 6 questions for Grade 4, all on Common Core 4.NF.C.6: Write fractions as decimals. The instruction to students is “Mark each decimal with an arrow”, and the answer key follows on the next sheet.

Which Common Core standard does Mark the Decimal practice?

CCSS.MATH.CONTENT.4.NF.C.6 — 4.NF.C.6, under Number & Operations — Fractions for Grade 4. The published standard reads: “Use decimal notation for fractions with denominators 10 or 100.” The worksheet assesses that standard rather than a paraphrase of it.

What age or grade is this worksheet for?

Mark the Decimal is written for Grade 4, typically ages 9-10. It is one of the sheets on 4.NF.C.6, so it suits any student working at that standard — including older students revisiting it and younger ones working ahead.

Does Mark the Decimal come with an answer key?

Yes. All 6 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 Mark the Decimal 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 Mark the Decimal free to print and photocopy?

Yes. Mark the Decimal, 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 4.NF.C.6

Write fractions as decimals.

All Grade 4 worksheets

Last reviewed 2026-09-05. Aligned to 4.NF.C.6 of the Common Core State Standards for Mathematics.