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## 'Fingers and Hands' printed from http://nrich.maths.org/

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.

Solution $1$: count the number of hands and times that number by
$5$ which is the number of fingers and thumb on a person's hand.

Solution $2$: simply count the fingers in the picture.

Luke from High Wycombe Maths Master Class sent
in,

There are $250$ hands altogether if you count in $5$s it makes it
much easier. Hint: the first picture has $30$.

Katrina,
Abigail and Aiden from St. Andrew's sent in the solutions clearly
as:

Picture $1 - 30$ fingers

Picture $2 - 40$ fingers

Picture $3 - 50$ fingers

Picture $4 - 60$ fingers

Picture $5 - 70$ fingers

We thought the best way to count the fingers was to count the hands
in $5$s. You could count pairs of hands in $10$s or count the
number of hands and multiply them by $5$ to get the number of
fingers.

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.