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Finding 3D Stacks

Age 7 to 11
Challenge Level Yellow starYellow starYellow star
Primary curriculum
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We haven't received many solutions to this task yet. Bertie from Dame Bradbury's School in England sent in this formula:

C = (L - 1) x (W - 1) x (D - 1)

I wonder what Bertie means by this? If you have any ideas about this, or if you'd like to share some different ideas about this task with us, then please email us.

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The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.

NRICH is part of the family of activities in the Millennium Mathematics Project.

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