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A fresh printable worksheet of maths and computational-thinking puzzles for kids. Every question, every answer, and every wrong answer is computed by a program, not written by an AI.

Correct by construction.

Made to be printed on paper.

Each sheet gets a permanent link that can be shared or reprinted.
For the answer key, add /key to the end of the URL.
For the HTML version with automated grading, add /html to the end of the URL.

* Sipatsi are the woven bands made in Inhambane, in southern Mozambique. The mathematician Paulus Gerdes (1952–2014) spent a lifetime showing that the women weaving them were working with symmetry and combinatorics to create eternal beauty.

build ea622a6 2026-07-29 00:59

sipatsi*

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