"Tell me the next two numbers in each of these seven minor spells",
chanted the Mathemagician, "And the great spell will crumble away!"
Can you help Anna and David break the spell?
Exploring and predicting folding, cutting and punching holes and
There are seven pots of plants in a greenhouse. They have lost their labels. Perhaps you can help re-label them.
This problem is similar
to Light the Lights, but slightly more tricky.
You may like to try that one first.