Volume Question Generator

Builds a sheet of volume questions at the level you ask for, with the working and the answers hidden until you want them. Every volume comes out whole, and every answer carries cubic units. Every question is computed and checked directly — not a fabricated or AI-guessed fact.

How many questions

Between 1 and 30. Ten fills a page.

Level

Seed (optional)

A word reproduces the same sheet, so a whole class can be given the identical set.

Gentle is cubes and cuboids. Standard adds a triangular prism; stretch adds a prism with an L-shaped cross-section.

Paper size

Print size

Margin

Millimetres of blank edge, 5 to 40.

Turn the paper sideways

Room to answer in

How to print this, or save it as a PDF

There is no PDF to download, and there does not need to be. Open the print command in your browser and choose “Save as PDF” as the destination. The page addresses and dates a browser normally prints across the top and bottom are already kept off.
Set the scale to 100%, not “fit to page”. This sheet is already the exact size of the paper you chose, so anything that resizes it makes every measurement on it wrong.
Leave the paper size in the dialog set to the same one you chose here.

Your questions will appear here.

What this generator does

Generates volume questions with answers, for cubes, cuboids and prisms. The prisms are the point of it: once a pupil sees that a volume is a cross-section carried along a length, a triangular prism and an L-shaped one stop being separate formulas to remember.

How to use this tool

Choose a level and how many questions you want.
Press make questions and work through the sheet.
Show the answers to mark it, or show the working to see the cross-section each prism is built from.
Enter a seed word to rebuild the same sheet later.

Common use cases

Volume practice at home or school
Quick geometry warm-ups
Self-testing before a maths quiz

Randomness and fairness

Dimensions are drawn with the browser's cryptographic random number generator within the level's range, and a triangular cross-section always gets an even base so that halving it stays whole. A seed word rebuilds the same sheet later; it is there for reproducibility, not cryptographic strength, and a seeded sheet is deterministic rather than unpredictable.

For how randomness is produced across the whole site, see how Generate Random works.

Limitations and good to know

Cylinders are not included. A cylinder's volume brings pi in, and every answer here is a whole number a pupil can check without a calculator.
There are no diagrams; each solid is described in words. An L-shaped cross-section in particular is worth sketching before working on it.
Surface area is a different question and is not asked here.

Common mistakes

Using square units for a volume: Volume is three-dimensional, so the units are cubed. Marks are lost for this more often than for the arithmetic.
Multiplying all the numbers in a prism question together: Work out the cross-section first, then multiply by the length. In an L-shaped prism the five numbers are not five factors — four of them describe one area.