Thirds
2.G.A.3
NameDate
Shade the fraction shown.
1.Shade 2/3
2.Shade 3/6
3.Shade 7/9
4.Shade 5/6
5.Shade 1/6
6.Shade 4/9
7.Shade 5/9
8.Shade 2/6
LessonPrint · 2.G.A.3 · Set 1 · free to copy for classroom use
Thirds is a free printable Grade 2 maths worksheet on three equal parts, aligned to Common Core standard 2.G.A.3. It prints 8 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.
Answer key — Thirds
Set 1. Prints on its own sheet.
- 1.2 of 3 equal parts
- 2.3 of 6 equal parts
- 3.7 of 9 equal parts
- 4.5 of 6 equal parts
- 5.1 of 6 equal parts
- 6.4 of 9 equal parts
- 7.5 of 9 equal parts
- 8.2 of 6 equal parts
Questions about Thirds
What does the Thirds worksheet cover?
It practises three equal parts — 8 questions for Grade 2, all on Common Core 2.G.A.3: Split shapes into halves, thirds and quarters. The instruction to pupils is “Shade the fraction shown”, and the answer key follows on the next sheet.
Which Common Core standard does Thirds practise?
CCSS.MATH.CONTENT.2.G.A.3 — 2.G.A.3, in the Geometry domain 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 pupil working at that standard — including older pupils revisiting it and younger ones working ahead.
Does Thirds come with an answer key?
Yes. All 8 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 — 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 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.
Last reviewed 2026-09-05. Aligned to 2.G.A.3 of the Common Core State Standards for mathematics.