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How Many Parts Make a Whole? is a free printable Grade 2 math worksheet on a whole as halves, thirds or fourths, and counting past one whole, aligned to Common Core standard 2.G.A.3. It prints 9 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 Many Parts Make a Whole?

2.G.A.3

NameDate

Fill in the missing number.

1.8 fourths = ___ wholes
2.One whole and one more third is ___ thirds.
3.How many fourths make one whole?
4.How many halves make one whole?
5.4 fourths = ___ whole
6.3 thirds = ___ whole
7.4 thirds is one whole and ___ more third.
8.2 halves = ___ whole
9.3 halves is one whole and ___ more half.

LessonPrint · 2.G.A.3 · Set 1 · free to copy for classroom use

Answer key — How Many Parts Make a Whole?

Set 1. Prints on its own sheet.

  1. 1.2
  2. 2.4
  3. 3.4
  4. 4.2
  5. 5.1
  6. 6.1
  7. 7.1
  8. 8.1
  9. 9.1

Questions about How Many Parts Make a Whole?

What does the How Many Parts Make a Whole? worksheet cover?

It practices a whole as halves, thirds or fourths, and counting past one whole — 9 questions for Grade 2, all on Common Core 2.G.A.3: Split shapes into halves, thirds and quarters. The instruction to students is “Fill in the missing number”, and the answer key follows on the next sheet.

Which Common Core standard does How Many Parts Make a Whole? practice?

CCSS.MATH.CONTENT.2.G.A.3 — 2.G.A.3, under Geometry for Grade 2. The published standard reads: “Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third of, etc.” The worksheet assesses that standard rather than a paraphrase of it.

What age or grade is this worksheet for?

How Many Parts Make a Whole? is written for Grade 2, typically ages 7-8. It is one of the sheets on 2.G.A.3, so it suits any student working at that standard — including older students revisiting it and younger ones working ahead.

Does How Many Parts Make a Whole? come with an answer key?

Yes. All 9 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 Many Parts Make a Whole? 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 Many Parts Make a Whole? free to print and photocopy?

Yes. How Many Parts Make a Whole?, 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 2.G.A.3

Split shapes into halves, thirds and quarters.

All Grade 2 worksheets

Last reviewed 2026-09-05. Aligned to 2.G.A.3 of the Common Core State Standards for Mathematics.