One of Lucy’s passions is mathematics, and this little book published in 1917 means a lot to her.
Watch out, though – some of these puzzles are really tricky!
Check it out at Project Gutenberg:
Amusements in Mathematics.
One of Lucy’s passions is mathematics, and this little book published in 1917 means a lot to her.
Watch out, though – some of these puzzles are really tricky!
Check it out at Project Gutenberg:
Amusements in Mathematics.