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Count Squares — Wide Rectangles is a free printable Grade 3 math worksheet on counting where the rows are long, aligned to Common Core standard 3.MD.C.6. 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 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.

Count Squares — Wide Rectangles

3.MD.C.6

NameDate

Count the squares. Area =

1.
Count the squares. Area =
2.
Count the squares. Area =
3.
Count the squares. Area =
4.
Count the squares. Area =
5.
Count the squares. Area =
6.
Count the squares. Area =
7.
Count the squares. Area =
8.
Count the squares. Area =

LessonPrint · 3.MD.C.6 · Set 1 · free to copy for classroom use

Answer key — Count Squares — Wide Rectangles

Set 1. Prints on its own sheet.

  1. 1.42 square units
  2. 2.24 square units
  3. 3.50 square units
  4. 4.35 square units
  5. 5.54 square units
  6. 6.33 square units
  7. 7.32 square units
  8. 8.55 square units

Questions about Count Squares — Wide Rectangles

What does the Count Squares — Wide Rectangles worksheet cover?

It practices counting where the rows are long — 8 questions for Grade 3, all on Common Core 3.MD.C.6: Find area by counting squares. The instruction to students is “Count the squares. Area =”, and the answer key follows on the next sheet.

Which Common Core standard does Count Squares — Wide Rectangles practice?

CCSS.MATH.CONTENT.3.MD.C.6 — 3.MD.C.6, under Measurement & Data for Grade 3. The published standard reads: “Measure areas by counting unit squares.” The worksheet assesses that standard rather than a paraphrase of it.

What age or grade is this worksheet for?

Count Squares — Wide Rectangles is written for Grade 3, typically ages 8-9. It is one of the sheets on 3.MD.C.6, so it suits any student working at that standard — including older students revisiting it and younger ones working ahead.

Does Count Squares — Wide Rectangles 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 Count Squares — Wide Rectangles 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 Count Squares — Wide Rectangles free to print and photocopy?

Yes. Count Squares — Wide Rectangles, 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 3.MD.C.6?

Yes — “Measuring Area by Counting Squares” is a 45-minute Grade 3 plan for 3.MD.C.6, timed section by section, with the misconceptions to expect and an exit ticket. Count Squares — Wide Rectangles is the practice that follows it.

More practice for 3.MD.C.6

Find area by counting squares.

Teaching this next? Measuring Area by Counting Squares is the 45-minute plan for it, with the misconceptions to expect.

All Grade 3 worksheets

Last reviewed 2026-09-05. Aligned to 3.MD.C.6 of the Common Core State Standards for Mathematics.