Skip to content
LessonPrint

Count the Cubes is a free printable Grade 5 maths worksheet on counting the cubes in a built cuboid, aligned to Common Core standard 5.MD.C.3. It prints 10 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.

Set 1 of 25 · the same problems every time you open this link.

Next setLesson plan

One paper per pupil

12345678910111213141516171819202122232425

All 25 sets ask different questions.

Count the Cubes

5.MD.C.3

NameDate

Work out each answer.

1.A cuboid is built from 3 × 6 × 3 unit cubes. How many cubes?
2.A cuboid is built from 2 × 6 × 5 unit cubes. How many cubes?
3.A cuboid is built from 3 × 2 × 6 unit cubes. How many cubes?
4.A cuboid is built from 4 × 4 × 2 unit cubes. How many cubes?
5.A cuboid is built from 2 × 7 × 6 unit cubes. How many cubes?
6.A cuboid is built from 9 × 4 × 2 unit cubes. How many cubes?
7.A cuboid is built from 8 × 5 × 2 unit cubes. How many cubes?
8.A cuboid is built from 3 × 8 × 6 unit cubes. How many cubes?
9.A cuboid is built from 9 × 8 × 5 unit cubes. How many cubes?
10.A cuboid is built from 9 × 7 × 2 unit cubes. How many cubes?

LessonPrint · 5.MD.C.3 · Set 1 · free to copy for classroom use

Answer key — Count the Cubes

Set 1. Prints on its own sheet.

  1. 1.54
  2. 2.60
  3. 3.36
  4. 4.32
  5. 5.84
  6. 6.72
  7. 7.80
  8. 8.144
  9. 9.360
  10. 10.126

Questions about Count the Cubes

What does the Count the Cubes worksheet cover?

It practises counting the cubes in a built cuboid — 10 questions for Grade 5, all on Common Core 5.MD.C.3: Understand what volume is. The instruction to pupils is “Work out each answer”, and the answer key follows on the next sheet.

Which Common Core standard does Count the Cubes practise?

CCSS.MATH.CONTENT.5.MD.C.3 — 5.MD.C.3, in the Measurement & Data domain for Grade 5. The published standard reads: “Recognize volume as an attribute of solid figures and understand concepts of volume measurement.” The worksheet assesses that standard rather than a paraphrase of it.

What age or grade is this worksheet for?

Count the Cubes is written for Grade 5, typically ages 10-11. It is one of the sheets on 5.MD.C.3, so it suits any pupil working at that standard — including older pupils revisiting it and younger ones working ahead.

Does Count the Cubes come with an answer key?

Yes. All 10 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 the Cubes 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 Count the Cubes free to print and photocopy?

Yes. Count the Cubes, 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 5.MD.C.3?

Yes — “What Volume Measures” is a 50-minute Grade 5 plan for 5.MD.C.3, timed section by section, with the misconceptions to expect and an exit ticket. Count the Cubes is the practice that follows it.

More practice for 5.MD.C.3

Understand what volume is.

Teaching this next? What Volume Measures is the 50-minute plan for it, with the misconceptions to expect.

All Grade 5 worksheets

Last reviewed 2026-09-05. Aligned to 5.MD.C.3 of the Common Core State Standards for mathematics.