We had many solutions to the numerical questions we posed. From the United Kingdom: Louis, Lucy and Gabriel from Ickford, Taylor from Hillocks, Kieran from Gosforth, Shane and Sameer from Haberdashers, Rohan from Canon Lane.
Charlotte from Laurence Jackson school sent in the following straight-forward ideas that resemble the other solutions sent in.
Luke from High Wycombe Maths Master Class sent in,
Katrina, Abigail and Aiden from St. Andrew's sent in the solutions clearly as:
From the United States of America, solutions were sent in from Conor at Burr Elementary School and Caroline from Estes Hills.
Thank you all for your answers and we welcome any later ones as well.
Did any of you try the last part of the problem, where the challenge was to count using aliens' hands? Do let us know if you've had a go.