Skip to content
LessonPrint

Thirds is a free printable Grade 2 math worksheet on three equal parts, named in words, aligned to Common Core standard 2.G.A.3. It prints 4 questions with an answer key on its own sheet of paper, in 25 versions, 17 of them with 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.

Next setLesson plan

One paper per student

12345678910111213141516171819202122232425

17 of these 25 sets ask different questions — this skill does not have 25 questions to give. The rest reorder them, so no two students have the same paper in front of them.

Thirds

2.G.A.3

NameDate

Shade the part named, or write the shaded part in words.

1.Shade one third.
2.Write the shaded part in words.
3.Shade a third of the bar.
4.Shade all three thirds.

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

Answer key — Thirds

Set 1. Prints on its own sheet.

  1. 1.1 of 3 equal parts
  2. 2.one third
  3. 3.1 of 3 equal parts
  4. 4.3 of 3 equal parts

Questions about Thirds

What does the Thirds worksheet cover?

It practices three equal parts, named in words — 4 questions for Grade 2, all on Common Core 2.G.A.3: Split shapes into halves, thirds and quarters. The instruction to students is “Shade the part named, or write the shaded part in words”, and the answer key follows on the next sheet.

Which Common Core standard does Thirds 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?

Thirds 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 Thirds come with an answer key?

Yes. All 4 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 Thirds can I print?

25 versions, of which 17 ask genuinely different questions — this skill does not have 25 distinct questions to give, so the rest reorder them and no two students still share a paper. Set 1 downloads all 25 as one PDF.

Is Thirds free to print and photocopy?

Yes. Thirds, 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 2.G.A.3?

Yes — “Sharing Shapes into Equal Parts” is a 45-minute Grade 2 plan for 2.G.A.3, timed section by section, with the misconceptions to expect and an exit ticket. Thirds is the practice that follows it.

More practice for 2.G.A.3

Split shapes into halves, thirds and quarters.

Teaching this next? Sharing Shapes into Equal Parts is the 45-minute plan for it, with the misconceptions to expect.

All Grade 2 worksheets

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