Socks in the dark
Ages 9–12
The light is off. How few socks must you take to be SURE — not lucky — of a matching pair? Set a number, then pull in the dark and watch the worst that can happen.
How full are the drawers?
How many drawers?
In the drawer
How many must you take to be sure of a matching pair?
2 socks
Every drawer is figured out
On paper too — Socks in the dark